A working ladder capable of serving as a working platform, comprises a ladder frame body having a front portion and a top; and a step assembly. The step assembly comprises at least a bottom step and an upper step located above the bottom step; the rear shaft comprises a bottom rear shaft and an upper rear shaft; two movable auxiliary support rods capable of swinging up and down are disposed in the front portion of the ladder frame body; an auxiliary shaft for the rear end of the bottom step to rest on is horizontally disposed on the top of the ladder frame body; when the auxiliary support rods are in a downward position, the rear end of the bottom step rests on the lowermost bottom rear shaft; when the auxiliary support rods are in a upwardly position, the bottom step moves upwardly to the top of the ladder frame body, and meanwhile the rear end of the bottom step rests on the auxiliary shaft. The steps of the working ladder can be used as working platforms.
E06C 1/16 - Échelles susceptibles de rester dressées d'elles-mêmes avec supports reposant sur le sol
E06C 1/393 - Échelles ayant des plates-formes se repliant en même temps que l'échelle
E06C 1/387 - Structures particulières d'échelles, p. ex. échelles comportant plus ou moins de deux montants, échelles à barreaux mobiles, échelles pliables longitudinalement ayant des marches à rabattement
B25H 1/04 - ÉtablisÉtagères ou supports portatifs pour disposer des outils portatifs ou des pièces à travailler du type table portative
E06C 7/08 - Structures particulières des montants, barreaux ou autres traverses
E06C 7/16 - Plates-formes sur échelles ou pour utilisation sur échelles, p. ex. plates-formes pouvant être levées ou baissées
Disclosed is a work ladder which can be used as a working platform, comprising a ladder main body and a pedal assembly. The pedal assembly at least comprises a bottom pedal (1) and a top pedal (2) located above the bottom pedal (1). A rear shaft comprises a bottom rear shaft (3) and a top rear shaft (4). A front part of the ladder main body is rotationally provided with two auxiliary support rods (5) capable of turning up and down, a front end of the bottom pedal (1) is rotationally arranged between the two auxiliary support rods (5), and the top of the ladder main body is provided with an auxiliary shaft part (6) which is arranged laterally and a rear end of the bottom pedal (1) can rest thereon. When the auxiliary support rod (5) is turned downwards, the rear end of the bottom pedal (1) rests on the bottom rear shaft (3) at the lowest end; when the auxiliary support rod (5) is turned upwards, the bottom pedal (1) is moved upwards to the top of the ladder main body, and meanwhile the rear end of the bottom pedal (1) rests on the auxiliary shaft part (6). The pedal of the work ladder can be used as the working platform.
Tubes of metal; staircases of metal; ladders of metal; steps
[ladders] of metal; fittings of metal for furniture;
ironmongery; tool boxes of metal [empty]; signboards of
metal; handling pallets of metal; scaffolding of metal.
Tubes of metal; staircases of metal; ladders of metal; steps ladders of metal; fittings of metal for furniture; ironmongery, namely, bolts, nails, screws, wall anchors, rivets, hinges and nuts; tool boxes of metal empty; signboards of metal; handling pallets of metal; scaffolding of metal
8.
SAFE TELESCOPIC LADDER CAPABLE OF PREVENTING HAND FROM BEING PINCHED
A safe telescopic ladder capable of preventing a hand from being pinched comprises two ladder poles that are vertically arranged and opposite each other. Each ladder pole is formed by a plurality of sectional poles (1) telescopically sleeved together. A sealing cover (2) for shielding is arranged at a lower opening of each sectional pole; the sealing cover (2) is provided with a small cylindrical part (21) and a large cylindrical part (22). The peripheral surface of the large cylindrical part (22) is provided with an annular groove (23); a lower side wall of the annular groove (23) is provided with a plurality of axial penetrating air holes (24); the annular groove (23) is internally provided with a sealing ring (3). The sealing ring (3) is capable of sliding up and down in the annular groove (23) so that the sealing ring (3) is in sliding fit with an inner hole wall of the next sectional pole. Hence, the sealing cover (2) positioned on the last sectional pole encounters air resistance during a descending process so that the descending close-up speed of the sectional pole is retarded, thereby achieving the purposes of preventing the fingers of a user from being bruised and eliminating potential safety hazards. The annular groove (23) is internally provided with the air holes (24) so that the sectional poles (1) move upwards when the telescopic ladder is stretched for use, and air inside the sectional poles (1) can be circulated with the assist of the air holes (24), ensuring that the telescopic ladder is labor saving when being stretched.
Disclosed is a locking structure for an extensionable ladder, which includes a connecting sleeve (3) provided for connecting a section rod (1) and a corresponding transom (2). The connecting sleeve(3) is provided with a pin (4) which can move horizontally and transversely relative to the sleeve (3), a push button (6) driving the pin (4) to move transversely, and an automatic unlocking switch (7) connected to the pin (4), whichis is set rotatablely in the connecting sleeve (3). A socket (31) is arranged in the lower end face of the connecting sleeve (3), and a push component (32) protruding upwards is arranged on the upper end face thereof. The push component (32) is inserted into the socket (31) of the connecting sleeve (3) of the adjacent superior locking structure to push the automatic unlocking switch (7) to rotate so as to drive the pin (4) to move transversely. Uninodal unlocking gradually and multinodal unlocking automatically can be achieved with the locking structure.
A connecting sleeve for an extension ladder is provided, which includes a connecting ring (1) and a connecting block (2). A rotary seat (3) and a rotary panel (4) are set on the joint surface between the connecting block (2) and the connecting ring (1). The rotary seat (3) is fixed relative to the connecting ring (1), and a socket (31) is set in the centre of the rotary seat (3). A rotating shaft (32) extends to the centre of the socket (31) from two sides of the socket (31) respectively, and a vertical part (41) of the rotary panel (4) is inserted into the socket (31); furthermore, a torque spring (5) is installed outside the rotating shaft (32) so that the horizontal part (42) of the rotary panel (4) can be rotated towards the connecting block (2) about the rotating shaft. When the extension ladder is folded, a fixed safe space between the rungs of the ladder is provided by the rotary panels (4) for preventing fingers from being clamped, meanwhile, the integral height of the ladder can be reduced so as to facilitate package and transportation of the ladder when the horizontal part (42) of the rotary panel (4) is folded.
An extending ladder comprises a left column(1),a right column(2) and plurality of rungs (3) that extending between the left and the right column, both of the left and the right column include several left and right column units (11,12) which sliding sleeves in turn. A left latch mechanism (4) and a right latch mechanism (5) that has a left and a right control button (6,7) respectively are disposed inside the rung(3), the left and the right control button (6,7) are disposed closely on the middle of the rung (3),so that the two control buttons can be actuated single-handedly to make the rungs(3) unlatched to the corresponding column unit.