Provided is an escalator safety clamp linkage device, pertaining to the technical field of escalators. The escalator safety clamp linkage device comprises an upper beam body (1). The upper beam body is provided with safety clamps (2) symmetrically fixed at two sides of an upper beam, and a linkage mechanism (3) fixed between the two safety clamps. The linkage mechanism comprises a linkage rod (4). An adjustment seats (5) are respectively connected to two ends of the linkage rod. The adjustment seats at the two ends of the linkage rod are respectively connected to a triangular member (6). A connection rod (7) is fixed to each of the triangular members. A lifting handle (8) is connected to one of the triangular members via the connection rod, and an inner side of the connection rod (7) connected to the lifting handle (8) is provided with a safety switch (9). A tension spring assembly (10) is connected to the other triangular member, and comprises a fixing seat (11) and a tension spring (12) connected between the fixing seat and the triangular member. The linkage device can be arranged in an upper beam device, such that the lifting position is moved upwards and avoids interference with a tensioning device. The linkage mechanism is flexible and reliable, featuring a simple overall structural design. The invention is convenient to install and commission with low costs.
A hydraulic telescopic rod structure of a floor plate, pertaining to the technical field of escalators. The structure has a floor plate (1). A truss (3) used for fixing the floor plate is disposed below the floor plate. Mounting supports (4) are disposed on the truss. A rotating shaft (5) is disposed on each mounting support. A hydraulic telescopic rod (6) is connected to the mounting support. A fixing support (8) connected to the hydraulic telescopic rod is provided on the floor plate. Fixing bolts (31) are detachably connected to the floor plate. A fixing plate (2) is fixedly connected to the truss via a hinge connection at one side of the floor plate. A limit switch (10) is disposed between the fixing bolts. The hydraulic telescopic rod has a hydraulic cylinder (11) connected to a control system (12). The hydraulic telescopic rod will slowly push the floor plate upwards automatically after screws on the floor plate are removed, such that a worker can directly enter a machine room to perform maintenance without needing to move a heavy floor plate. The limit switch prevents the telescopic rod from being activated when the floor plate is closed.
Provided is a cab ceiling safety window switch for an elevator, pertaining to the technical field of elevators. The invention comprises a safety window (1), a cab ceiling plate (2), and a lock component (3) arranged between the safety window (1) and the cab ceiling plate (2). The lock component (3) comprises a mechanical lock (4) and an electrical lock (5). The mechanical lock (4) comprises a fixed base plate (11) fixed on the ceiling plate (2). An integrally bent C-shaped mechanical locking hook (6) is connected to the fixed base plate (11). A mechanical locking lever (7) is provided at one side of the mechanical locking hook (6). The mechanical locking lever (7) is provided with a key rotating lock lever (8) connected to the safety window (1). The electrical lock (5) comprises a lock sensing component (51) fixed on the fixed base plate (11), and a sensing block (52) arranged on the mechanical locking lever (7). When a rescue is needed, an electrical signal can be quickly sent to an elevator control system, and a mechanical switch and the electrical lock (5) can be kept locked after the rescue is completed. The electrical lock (5) and the mechanical lock (4) engage in a more orderly and reliable manner during the entire elevator operation process.
An external main control cabinet, comprising a resistor box (1) and a main control box (2). The resistor box is provided directly above the main control box; a C-shaped steel channel (3) used for separating the resistor box from the main control box is provided between the resistor box and the main control box to achieve heat insulation and heat dissipation; the front side of the main control box is provided with a double door (4); a portable maintenance window (5) is provided on the double door; a side of the main control box is provided with heat-dissipation ventilation openings (6). To overcome the problem of insufficient space for placing the control cabinet in an escalator truss machine room, the position of the resistor box may be adjusted according to an actual condition. The main control cabinet is full-featured, good in heat dissipation, simple in structure, and easy to install.
A compensation guide device, relating to the technical field of elevators. The guide device is provided with a mounting base (1) and two guide rails (2) fixedly mounted on the mounting base. The guide rails are arranged parallel to each other; an upper limit switch (3) and a lower limit switch (4) are fixedly connected to the right guide rail; a mounting frame (5) is fixedly connected to the guide rails; two guide wheels (6) perpendicular to the mounting frame are symmetrically arranged on the left and right of the mounting frame; and a compensation rope (7) for compensating a counterweight is connected to the guide wheels. A double-rail fixing structure may effectively increase stability and reduce negative factors caused by shaking, and may enable a compensation rope of a large-car elevator to maintain a stable vertical state while having sufficient tension, thereby reducing an accidental car-stopping situation due to shaking of the compensation rope, while having a structure which is simple, stable and easy to install.
The present invention relates to the technical field of escalators, and provides an auxiliary handrail driving device, comprising a handrail wheel (1) and a handrail (2) driven by a frictional force of the handrail wheel to operate. The handrail wheel is provided with a driven chain wheel (3) coaxial therewith. The driven chain wheel is connected with an intermediate chain wheel (4) by means of a chain. The intermediate chain wheel is connected with a driving chain wheel (5) on a rotating shaft of a guide rail on a lower portion of an escalator. An auxiliary chain wheel component (6) for regulating the tightness of the chain is further provided between the driven chain wheel and the intermediate chain wheel. By cooperation of various chain wheels, the tightness of the chain is adjustable, transmission stability is achieved, high stall rate of a long handrail is greatly reduced, and the running stability of the escalator is improved.
A multi-purpose elevator guide rail bracket, comprising left and right bracket legs (1, 1'), wherein the left and right bracket legs (1, 1') respectively fix left and right brackets (3, 3') which extend relatively. The left bracket (3) is fixedly connected to the left bracket leg (1) via a connecting plate (3-1), and the connecting plate (3-1) is provided with connecting positions which enable the left bracket (3) to directly face and to stagger the right bracket (3'). An inner surface of the right bracket leg (1') directly fixes a pressure guide plate (4) used for installing a counter-weight guide rail, an inner surface of the left bracket leg (1) fixes the pressure guide plate (4) used for installing the counter-weight guide rail via a support panel (5) having installation positions close to and away from the left bracket leg, and an outer surface of the right bracket (3') directly fixes a pressure guide plate (6) used for installing a car guide rail. When the connecting plate (3-1) is in a connecting position enabling the left bracket (3) to directly face the right bracket (3'), the support panel (5) is in the installation position close to the left bracket leg (1), and abutting ends of the left and right brackets (3, 3') are directly and fixedly connected; and when the connecting plate (3-1) is in a connecting position enabling the left bracket (3) to stagger the right bracket (3'), the support panel (5) is in the installation position away from the left bracket leg (1),and the abutting ends of the left and right brackets (3, 3') are fixedly connected via a transition bracket (8).
Disclosed is a traction driving apparatus for a domestic elevator, comprising a horizontal top load-bearing girder (1) arranged at one side of the top of an elevator shaft (6), wherein a traction electric motor (2) having a traction driving wheel (3) and a counterweight hitch plate anchor (4) are mounted on the top load-bearing girder (1), a car hitch plate anchor (5) is fixed on the top of a side wall of the elevator shaft (6) away from the top load-bearing girder (1), after a steel rope (7-1) hung at the side where the spacing between the traction driving wheel (3) and the elevator shaft (6) is less has been wound around a counterweight sheave (9), an end extends upwards and is fixed to the counterweight hitch plate anchor (4), and after a steel rope (7-3) hung at the side where the spacing between the traction driving wheel (3) and the elevator shaft (6) is greater has been wound around a guide sheave (11) at the bottom of a car (10), an end extends upwards and is fixed to the car hitch plate anchor (5). Balancing the force sustained by the whole driving apparatus by means of a weight-matched counterweight and car respectively located at two sides of a top load-bearing girder ensures stable operation of the domestic elevator, while the counterweight adjoining a side wall of the shaft means that the car can fully utilise the space of the elevator shaft, improving the utilisation ratio of the elevator shaft.
Disclosed is an under-elevator lifting car frame, comprising left and right vertical beams (1) and a lower beam (2) fixedly connected to a lower end of the left and right vertical beams (1), wherein the lower beam (2) is fixedly connected to a load-bearing girder (7) via a connecting plate (6); the load-bearing girder (7) is parallel to the lower beam (2), an upper surface of the load-bearing girder and an upper surface of the lower beam (2) are located on the same horizontal plane, lower parts of two ends of the load-bearing girder (7) respectively support a guide wheel (9), and the centre of gravity of a car system formed by the car frame and a car is located within one of the longitudinal sections in the thickness direction of the guide wheel (9). The longitudinal section of a lifting acting force basically overlaps the centre of gravity of the car system by arranging the acting point of the lifting of the car system at the bottom of the car, preventing an additional torque when lifting, improving balance in the course of the elevator lowering and lifting while the gantry frame structure means that the car fully utilises the space of a shaft.
A speed-limiting control device for a home lift includes a connecting rod (2) and two beam bodies correspondingly mounted on two ends of the connecting rod (2) respectively. On each beam body is respectively provided with a set of the speed-limiting control device. The speed-limiting control device includes a governor rope hitch (6), a safety clamp (8) and a safety-clamp lifting mechanism connected fixedly with the wedge (81) of the safety clamp. The safety clamp (8) is mounted on the beam body, and the governor rope hitch (6) is linked to the safety-clamp lifting mechanism by the connecting rod (2). The speed-limiting control device also includes a safety switch (3) electrically connected to a lift control circuit and a switch strike plate (12) for disconnecting the safety switch (3). The safety switch (3) is a normal close switch and mounted on the beam body. The switch strike plate (12) is linked to the safety-clamp lifting mechanism. The device has simple structure and when being used with a governor of a home lift can effectively realize the lifting operation of the safety clamps as well as reliable actuation of the safety switch when running speed of cage exceeds predetermined speed.
B66B 5/04 - Applications of checking, fault-correcting or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
B66B 5/22 - Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces by means of linearly-movable wedges
A rope slack-preventing device of a lift includes a rope end plate (8), a rotating component (2), a switch fixing frame (3) and a supporting frame of the rotating component. Under the rope end plate (8), the rotating component (2) is suspended by the supporting frame of the rotating component and a safety switch (4) is suspended by the switch fixing frame (3). The supporting frame of the rotating component includes a fixing-supporting plate (6) and an elastic support column. One end of the fixing-supporting plate (6) is fixedly connected with the rope end plate (8), and the other end is hinged with the rotating component (2) by a pin shaft (7). The elastic support column includes a screw rod (1) and a pressing spring (5) sleeved around the screw rod. When the rotating component (2) is pressed to rotate around the pin shaft, the switch striking plate pushes the movable contact of the safety switch (4). The device can automatically cut off power supply to brake the lift such that accident of clashing head due to breakage of steel wire rope during the car running is effectively avoided and safety of the lift is guaranteed during the lift operation. The quality of the product can be effectively improved.
B66B 5/12 - Applications of checking, fault-correcting or safety devices in elevators responsive to abnormal operating conditions in case of rope or cable slack
12.
WALLBOARD FOR ELEVATOR CAR AND CAR WALL COMPOSED OF THE WALLBOARD
Disclosed are a wallboard for an elevator car and a car wall composed of the wallboard. The wallboard includes a rectangular panel (1). Right-angled hems on two sides of the rectangular panel (1) along the widthwise direction form sidewalls (2), and right-angled hems on two ends of the rectangular panel (1) along the lengthwise direction form sealing heads (3). Two strengthening ribs (4) fastened to the surface of the rectangular panel are connected between the sealing heads (3). An outer hem (2-1 ') is arranged on one sidewall at the edge thereof away from the rectangular panel (1), and an inner hem (2-1) is arranged on the other sidewall at the edge thereof away from the rectangular panel (1). Reliable sealing structure between adjacent wallboards is therefore formed. The inner and outer hems structure also helps improving rigidity of the wallboard and linearity of the sidewalls, which consequently reduces effectively noises and vibrations caused by the car wall during high-speed operation of the elevator.
A cowl for a high-speed elevator cage, which belongs to the technical field of electric lifting devices, comprises a rectangular upper cover plate (1) from the four edges of which a front cover plate (2), a back cover plate (3), a left cover plate (4) and a right cover plate (5) are extended downwards respectively. The upper edges of the back cover plate (3), the left cover plate (4) and the right cover plate (5) are transiently connected to the upper cover plate (1) through arc segments (6) respectively, while the lower edges have outward vertical folding edges (8) respectively, and the interior side faces are fixedly connected with the arc segments (6) and the upper cover plate (1) through a set of space-arranged reinforcement plates (7) in the form of reinforced rib construction, respectively. During installation, said cowl is fixed on the top of the elevator cage. The arc segments (6) can guide air circulation, and have the effects of reducing the wind resistance and protecting the cage during the high-speed movement of the elevator cage. The reinforcement plates (7) form the reinforced ribs for the back cover plate (3), the left cover plate (4), the right cover plate (5) and the arc segments (6), which can effectively prevent the cowl from being distorted during the high-speed movement of the elevator cage in the wellhole, and greatly reduce the elevator cage's interior vibration and noise.
Disclosed is an adjustable car top guardrail. The first technical solution: the adjustable car top guardrail comprises a transverse fencing and longitudinal fencings located at both ends of the transverse fencing; the transverse fencing consists of a left fencing section and a right fencing section, both of which are interconnected; the connecting positions of the left fencing section and the right fencing are respectively provided with a set of corresponding connecting holes (1-1-1) distributed at intervals along the length direction. The second technical solution: the adjustable car top guardrail comprises a transverse fencing (1-H) and longitudinal fencings (1-V) located at both ends of the transverse fencing (1-H); the both ends of the transverse fencing (1-H) are lockably hinged with the longitudinal fencing (1-V) by a transition fencing (1-L) respectively. The width and depth of the car top guardrail can be adjusted according to the size of cars, and therefore the car top guardrail has excellent adaptability and can be produced in bulk, thus reducing manufacturing cost and improving production efficiency.
A compensation device for an elevator, comprises a guide device (1), a fixing device (2), a travel switch holder (3), a limiting cam holder (4), a counterweight and a safety device (6), the safety device (6) is constituted of safety tongs (601), lifting rods (602), a linkage shaft (603), pull rods (604) and positioning plates (605). The safety tongs (601) fixed to two ends of the guide device (1). By the lifting rods, lower ends of the safety tongs (601) are connected with first radially extending arms of the linkage shaft (603) which horizontally hinged and supported on the guide device (1), and second radially extending arms of the linkage shaft (603) are connected with the upper ends of the pull rods (604). And the lower ends of the pull rods (604) passed through the througholes of the positioning plates (605) fixed to the fixing device (2), and provided with a limiting member. During operation, the positioning plates are fixed to the fixing device (2), after the pull rods (604) move up certain distance, the limiting member is blocked by the positioning plates (605) and can not move up continuously, so that the linkage shaft (603) swings around horizontal axes; and then the lifting rods (602) pull the safety tongs (601), and break the guide device (1), thus avoiding accident and ensuring security of device.
A shock absorbing board of steel wire rope comprises a shock absorbing block (3), an inner plywood (4), a first external plywood (51) and a second external plywood (52). The inner plywood (4) is adhered between the first external plywood (51) and the second external plywood (52) through adhesive, and more than two fixing holes of steel wire rope, which have a same center line, are correspondingly provided on the first external plywood (51) and the second external plywood (52) respectively. The shock absorbing blocks (3), which are connected with the inner plywood (4), are provided in the fixing holes of the second external plywood (52), and a clearance exists between the shock absorbing blocks (3) and the second external plywood (52), and a rope fixing part (2) is provided on each of the shock absorbing blocks (3). Therefore, when the invention is used in ultra-high elevator, the steel wire rope is fixed to the shock absorbing block (3) by the rope fixing part (2), and the shock of the tractive steel wire rope can be effectively absorbed during the operation of the ultra-high elevator, so as to avoid the intertwist occurred between two rows of steel wire ropes.
An adjustable guide rail bracket for an elevator is disclosed, which includes a fixed bracket (1) and an adjustable bracket (2). The fixed bracket is provided with a vertical mounting surface (1-1) and a horizontal mounting surface (1-1), and the adjustable bracket is provided with a vertical supporting surface (2-1) and a horizontal supporting surface (2-1). The fixed bracket and the adjustable bracket are fixedly connected with each other by tightly pressing the horizontal supporting surface to the horizontal mounting surface. The vertical mounting surface has expansion bolt long slotted holes extending along the longitudinal direction of the fixed bracket. Long slotted holes are provided on corresponding portions of the horizontal mounting surface and the horizontal supporting surface. Guide rail pressing board bolt holes are provided on the vertical supporting surface extending along the width direction. The fixed bracket and the adjustable bracket can be adjustably connected with each other by the fastening bolts and long slotted holes so that the guide rail bracket can be mounted conveniently. During the mounting process the cutting and welding process are reduced thus the material being saved.
An adjustable guide rail bracket for an elevator is disclosed, which includes a fixed bracket (1), an adjustable bracket (2) and a guide rail pressing board (3). The fixed bracket comprises a left angle iron shaped bracket (1-1) and a right angle iron shaped bracket (1-1). The angle iron shaped main body of the adjustable bracket bends and extends to form a first supporting beam (2-1) and a second supporting beam (2-2), thus forming a trilateral-trapezoidal structure. The left and right angle iron shaped brackets of the fixed bracket, the main body part of the adjustable bracket and the first and second supporting beams of the adjustable bracket are provided with a horizontal supporting surface and a vertical supporting surface respectively. The vertical supporting surfaces of the left and right angle iron shaped brackets have fastening connecting piece punch holes respectively and the vertical supporting surface of the main body section of the adjustable bracket has left and right guide rail pressing board mounting holes. The horizontal supporting surfaces of the left and right angle iron shaped brackets and the horizontal supporting surfaces of the first and second supporting beams are adjustably and fixedly connected with each other. The guide rail bracket is convenient to mount and saves materials.
A counterweight device for a lift comprises a counterweight frame, counterweight blocks (2) and pressing plates (1) for the counterweight blocks. The counterweight frame is a rectangular frame composed of two long vertical beams (4), an upper side beam (3) and a lower side beam (5). A cross drawing plate (7) is fixed between the two long vertical beams (4). A short vertical beam (6) is connected between the cross drawing plate (7) and the middle part of the lower side beam (5). Two counterweight guide slots are formed between the short vertical beam (6) and the two long vertical beams (4). The counterweight blocks (2) are superposed in the two guide slots from bottom to top, respectively. Two pressing plates (1) for the counterweight blocks are fixed between the short vertical beam (6) and the two long vertical beams (4) at an upper end of the counterweight blocks (2), and stride over the two guide slots respectively.
