Abstract

An emergency repair cable release apparatus for cables, comprising: a bearing box body (100); a cable release frame, comprising a bottom frame (210) and a bracket (220), wherein the bottom frame (210) is disposed inside the bearing box body (100), a horizontal rotating shaft (211) is disposed on the bottom frame (210), the bracket (220) is in the shape of a cross composed of four booms (221), and the rotating shaft (211) is provided with at least one pair of brackets (220); a cable tray (300), comprising a central shaft (310) and a cable disc reel (320), wherein the cable disc reel (320) is rotatably mounted on the central shaft (310), a locking member (330) is provided between the central shaft (310) and the cable disc reel (320), and the two ends of the central shaft (310) are respectively mounted on booms (221) opposite to two adjacent brackets (220); a cable release driving mechanism (400), which comprises a bottom bracket (410), an upper bottom plate (420) and a driving rotating shaft (430), wherein the bottom bracket (410) is provided with a spring positioning shaft (411), the upper bottom plate (420) is movably mounted on the spring positioning shaft (411), and the spring positioning shaft (411) is sleeved with a spring (412), the driving rotating shaft (430) is mounted on the upper bottom plate (420), at least one driving wheel (431) is disposed on the driving rotating shaft (430), and the driving rotating shaft (430) can abut against the outer edge of a wheel disc (321) under the action of the spring (412), and drives the rotation of the cable disc reel (320).

IPC Classes  ?

• B65H 49/30 - Swifts or skein holders
• B65H 49/32 - Stands or frameworks

Abstract

A grounding cable antitheft protection system, comprising a grounding resistance collecting device, used for collecting a grounding resistance of a main grounding cable; a bypass grounding protection device, connected in parallel to the main grounding cable and used for providing bypass grounding on the main grounding cable for a power supply cable; and a processor unit, connected to the grounding resistance collecting device and used for receiving the grounding resistance. With the embodiments of the invention, the grounding resistance of the main grounding cable is collected via the grounding resistance collecting device, thus greatly increasing the accuracy of monitoring compared with a conventional scheme of monitoring via a vibration sensor. The main grounding cable is provided with bypass protection by the bypass grounding protection device, when the main grounding cable is disconnected due to theft, bypass grounding can still be provided, thus averting an immediate failure, and buying time for a repair. Received information is transmitted to an external monitoring platform or monitoring end via the processor unit, once a theft occurs, the dangerous situation can be noticed immediately, and a maintenance staff member can be dispatched in a timely manner to resolve the situation.

IPC Classes  ?

• G01R 27/20 - Measuring earth resistanceMeasuring contact resistance of earth connections, e.g. plates

Abstract

A cleaning and detecting apparatus for an inner wall of an insulating hollow sleeve. When a sleeve having a continuous variable diameter is cleaned, a traveling system can retract or stretch as the diameter of the sleeve varies, so as to adapt to the condition of the variation of the diameter of a cable sleeve, thereby completing adaptive walking in the sleeve; and a cleaning system moves forward along with a walking part, such that a cleaning head (2100) always remains attached to an inner wall of the sleeve by means of a tension force provided by a compression spring (2800), thereby completing the cleaning of the inner wall of the sleeve having a varying inner diameter.

IPC Classes  ?

• B08B 9/049 - Cleaning the internal surfacesRemoval of blockages using cleaning devices introduced into and moved along the pipes having self-contained propelling means for moving the cleaning devices along the pipes
• B08B 9/051 - Cleaning the internal surfacesRemoval of blockages using cleaning devices introduced into and moved along the pipes having self-contained propelling means for moving the cleaning devices along the pipes the cleaning devices having motors for powering cleaning tools
• F16L 55/28 - Constructional aspects

Abstract

A device for detecting and cleaning an inner wall of a pipeline. When cleaning is carried out on a continuously variable-diameter pipeline, a walking system can contract or extend with the change of the pipe diameter, such that the walking system adapts to the change of the pipe diameter of a cable sleeve (300), and then self-adaptive walking in the pipe is completed, a cleaning system moves forwards along with the walking system; and by means of the tension force provided by a first support spring (170), a cleaning head (110) is always fit to the inner wall of the pipeline, and therefore cleaning work of the inner wall of the pipeline with the variable inner diameter is finished.

IPC Classes  ?

• B08B 9/049 - Cleaning the internal surfacesRemoval of blockages using cleaning devices introduced into and moved along the pipes having self-contained propelling means for moving the cleaning devices along the pipes

Abstract

A temperature measurement plug used in cooperation with a ring main unit plug temperature measurement system, comprising a plug body (100), one end of the plug body (100) being provided with a main insert mounting groove (110); a main insert (200) provided in the main insert mounting groove (110), the main insert (200) being used for assisting the plug body (100) in mounting; and a passive wireless temperature measurement chip (300) provided in the plug body (100) and used for measuring the internal temperature of a ring main unit, feeding back a temperature signal to an external receiving antenna, and generating a working power supply by sensing an external electromagnetic wave signal. Compared with the conventional structure of an upper inlay and a lower inlay, the temperature measurement plug greatly reduces the number of metal inserts and reduces costs. The internal temperature of the ring main unit can be measured by means of the passive wireless temperature measurement chip (300); meanwhile, a power supply for working can be directly obtained by sensing the external electromagnetic wave signal， and it is unnecessary to obtain the power supply by means of self-fetching power or electric field coupling power fetching, and other modes, which greatly prolongs the service life.

IPC Classes  ?

• G01K 1/02 - Means for indicating or recording specially adapted for thermometers
• G01K 1/14 - SupportsFastening devicesArrangements for mounting thermometers in particular locations
• G01K 1/00 - Details of thermometers not specially adapted for particular types of thermometer

Abstract

A low-voltage cable bypass power transfer emergency repair vehicle, comprising: a vehicle body (100); a support frame (200) having a central shaft (210); three sets of rotary reels (300), the three sets of rotary reels (300) being sequentially arranged on the central shaft (210) so as to be assembled on the support frame (200); a rotary reel drive mechanism (400) connected to one end of the central shaft (210) to drive the rotary reels (300) to rotate; a cable reel drive mechanism (500) frictionally rotating with cable reels (310) to unwind and wind a cable; a cable reel detection module (600) for detecting relative positions of the cable reels (310) and the cable reel drive mechanism (500); and a controller (700) electrically connected to the rotary reel drive mechanism (400), the cable reel drive mechanism (500) and the cable reel detection module (600) respectively. A low-voltage cable bypass power transfer emergency repair method is further disclosed. The coaxial multi-set multi-reel structure can accommodate more cables and is suitable for single-phase or three-phase simultaneous unwinding and winding. The cable reel detection module, the rotary reel drive mechanism and the cable reel drive mechanism are configured to cooperate with each other, so that a corresponding cable reel can be selected in a timely manner according to a fault condition and the real-time status of the rotary reels, greatly improving operation efficiency.

IPC Classes  ?

• B65H 75/44 - Constructional details
• B60P 3/14 - Vehicles adapted to transport, to carry or to comprise special loads or objects the object being a workshop for servicing, for maintenance, or for carrying workmen during work

Abstract

An installation method and expansion device for a cable intermediate joint (600). The installation method for the cable intermediate joint (600) comprises the following steps: opening and keeping one end of the intermediate joint (600) in a supporting state; attaching an isolation layer (810) to the fracture of an insulation shielding layer of a first cable (820); enabling the intermediate joint (600) to be fitted over the first cable (820) until an insulating layer of the first cable (820) is exposed at the other end of the intermediate joint (600); connecting the first cable (820) to another second cable (830) which needs to be butted; pulling the intermediate joint (600) in the direction from the first cable (820) to the second cable (830) until the insulating layers of the first cable (820) and the second cable (830) enter the interior of the intermediate joint (600); and removing the isolation layer (810) from the first cable (820). According to the method, one end of the intermediate joint (600) is expanded, so that the penetration difficulty of the first cable (820) is reduced. By arranging the isolation layer (810) on a port of the insulation shielding layer of the first cable (820), decarburization particles on the insulation shielding layer can be effectively prevented from falling into the intermediate joint (600).

IPC Classes  ?

• H02G 1/14 - Methods or apparatus specially adapted for installing, maintaining, repairing, or dismantling electric cables or lines for joining or terminating cables
• H02G 15/08 - Cable junctions

Abstract

Disclosed is a cable reel satisfying live operation on site, the cable reel comprising: a middle cylinder (100), which is formed by means of assembling a plurality of arc plates made of non-metal materials; a first winding cylinder (200) and a second winding cylinder (300), which are symmetrically arranged on two sides of the middle cylinder (100), wherein each of the first winding cylinder (200) and the second winding cylinder (300) comprises an outer disk (210), a middle disk (220) and a plurality of cylinder arm arc plates (230) arranged between the outer disk (210) and the middle disk (220), with the outer disk, the middle disk and the plurality of cylinder arm arc plates being made of non-metal materials; and a center shaft (400), wherein the first winding cylinder (200), the middle cylinder (100) and the second winding cylinder (300) are sequentially arranged on the center shaft (400) in a penetrating manner. The outer disk (210), the middle disk (220) and the cylinder body which are made of non-metal materials are used, such that an insulating non-magnetic environment can be created; and the middle disk (220) directly uses an assembled structure that is detachable to replace a gap and a detachable spoke plate.

IPC Classes  ?

• B65H 54/40 - Arrangements for rotating packages
• B65H 54/54 - Arrangements for supporting cores or formers at winding stationsSecuring cores or formers to driving members
• B65H 54/70 - Other constructional features of yarn-winding machines