CN219158888U

CN219158888U - Centipede ladder special for subway

Info

Publication number: CN219158888U
Application number: CN202223503231.3U
Authority: CN
Inventors: 沈恩庆; 张勇; 周波; 刘剑平
Original assignee: Sichuan Xinda Track Traffic Equipment Co ltd; Chongqing Rail Transit Group Co ltd
Current assignee: Sichuan Xinda Track Traffic Equipment Co ltd; Chongqing Rail Transit Group Co ltd
Priority date: 2022-12-27
Filing date: 2022-12-27
Publication date: 2023-06-09
Anticipated expiration: 2032-12-27

Abstract

The utility model discloses a centipede ladder special for subways, which comprises a ladder main body and a hook which are detachably connected, wherein the hook comprises a hook body and a safety buckle, one end of the safety buckle is connected to the hook body through a pin shaft, and an elastic piece is arranged on the safety buckle, so that the other end of the safety buckle is naturally clamped on the hook body in a natural state; the hook body is provided with a limiting device for adjusting the position of the safety buckle; the safety rope seat is further arranged at one end, connected with the ladder main body, of the hook body, and a lantern ring used for fixing the safety rope is arranged on the safety rope seat. The centipede ladder can be suitable for various different hook types in maintenance and overhaul of various scenes of rail transit through the detachable hooks, and can be suitable for various different scenes such as a hard beam, a carrier rope and the like.

Description

Centipede ladder special for subway

Technical Field

The utility model relates to the technical field of rail transit, in particular to a centipede ladder special for subways.

Background

Along with the development of the rail transit industry, the subway engineering power supply system adopts a contact net rigid suspension mode. Because the rigid contact net is hung in the mid-air, a lot of troubles are brought to the maintenance and the overhaul of the rigid contact net. At present, the maintenance and the overhaul of the rigid contact net are finished by utilizing a centipede ladder, but the existing centipede ladder is not provided with a falling protection device, special centipede ladders are required to be used in different positions and under different conditions, and the centipede ladders are required to be replaced frequently in the maintenance process, so that the maintenance is difficult, and the use efficiency is affected. Therefore, a special centipede ladder for subways, which can be used in multiple scenes, is urgently needed.

Disclosure of Invention

The utility model provides a special anti-falling centipede ladder with a safety protection function for multiple scenes.

The utility model solves the technical problems by adopting the following technical scheme:

the utility model discloses a centipede ladder special for subways, which is characterized by comprising a ladder main body and a hook which are detachably connected, wherein the hook comprises a hook body and a safety buckle, one end of the safety buckle is connected to the hook body through a pin shaft, and an elastic piece is arranged on the safety buckle, so that the other end of the safety buckle is naturally clamped on the hook body in a natural state; the hook body is provided with a limiting device for adjusting the position of the safety buckle; the safety rope seat is further arranged at one end, connected with the ladder main body, of the hook body, and a lantern ring used for fixing the safety rope is arranged on the safety rope seat.

Further, the bent part of the hook body is provided with an anti-slip piece.

Further, the anti-slip piece is an anti-rotation guard plate for limiting the carrier rope, and the anti-rotation guard plate is of a folded plate structure.

Further, the bending part of the anti-rotation guard plate is arc-shaped, two ends of the anti-rotation guard plate are fixed on the hook body, and the bending part of the anti-rotation guard plate is positioned in the middle of the bending of the hook body.

Further, the anti-slip piece is an anti-slip sleeve, and the anti-slip sleeve is sleeved at the bending part of the hook body.

Further, the elastic piece is a torsion spring, and the torsion spring passes through the pin shaft and is arranged between the safety buckle and the hook body.

Further, the elastic piece is a spring, one end of the spring is fixed on the safety buckle, and the other end of the spring is fixed on the hook body below the safety buckle.

Further, the limiting device is a pulley, and one end of the insulating rope is fixed at the free end of the safety buckle after passing through the pulley.

Further, the limiting device is fixed on one side of the fixed end of the safety buckle on the hook body.

Further, the limiting device is a pull rod, one end of the pull rod is fixedly connected with the pin, and the pull rod is connected with the safety buckle through the pin; the other end of the pull rod is provided with a perforation for fixing the insulating rope.

Further, the ladder main body and the hook are connected through a connecting device, the connecting device comprises a first protruding part arranged at the bottom end of the hook and a second protruding part arranged at the top end of the ladder main body, the first protruding part is provided with external threads, the second protruding part is provided with internal threads, and the first protruding part is in threaded fit with the second protruding part; the connector is further arranged below the first protruding portion, so that the connector can penetrate into the ladder main body.

Further, through holes are formed in positions, corresponding to the ladder main body, of the connector, and the ladder main body is connected with the hooks through rivets after being connected with the hooks through threads.

The beneficial effects of the utility model are as follows: the detachable hook enables the centipede ladder to be applicable to various different hook types in maintenance and overhaul of various scenes of rail transit, and can be applicable to various different scenes such as a hard beam, a carrier rope and the like, and only the hook needs to be replaced in use. Through designing safety buckle, restriction safety buckle's stop device and safety rope seat, safer and more reliable in the use. The utility model has simple structure, easy operation and high safety in use.

The foregoing description is only an overview of the present utility model, and is intended to be implemented in accordance with the teachings of the present utility model in order that the same may be more clearly understood and to make the same and other objects, features and advantages of the present utility model more readily apparent.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the utility model. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:

fig. 1 is a schematic diagram of a mechanism of an embodiment 1 of a centipede ladder special for subways.

Fig. 2 is a schematic structural view of an embodiment 2 of a centipede ladder special for subways.

Fig. 3 is a schematic structural view of a centipede ladder connecting device special for subways.

In the drawings, 1 is a hook body, 2 is an anti-slip piece, 3 is a safety rope seat, 4 is a safety buckle, 5 is a limiting device, 6 is an elastic piece, 7 is a ladder main body, 8 is a connector, 9 is a through hole, 10 is a first protruding part, and 11 is a second protruding part.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

In the description of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "above," "below," "top," "bottom," "interior," and the like indicate an orientation or a positional relationship based on the orientation or the positional relationship when used, and are merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the scope of the utility model.

Example 1

Referring to fig. 1, a multi-scene special centipede ladder for subways comprises a ladder main body 7 and a hook which are detachably connected, wherein the hook comprises a hook body 1 and a safety buckle 4, one end of the safety buckle 4 is connected to the hook body 1 through a pin shaft, and an elastic piece 6 is arranged on the safety buckle 4, so that the other end of the safety buckle 4 is naturally clamped on the hook body 1 in a natural state; the hook body 1 is provided with a limiting device 5 for adjusting the position of the safety buckle 4; the hook body 1 is also provided with a safety rope seat 3 at the end connected with the ladder main body 7, and a lantern ring for fixing the safety rope is arranged on the safety rope seat 3.

The ladder main body 7 is detachably connected with the hook, and when the ladder is used in different scenes, only the hook is needed to be replaced, no additional centipede ladder is needed to be prepared, and the ladder is convenient to replace and use and convenient to use in continuous work. The safety in the maintenance process can be ensured through the arrangement of the safety buckle 4, and the elastic piece 6 ensures that the safety buckle 4 automatically restores to a natural state after the centipede ladder is hung, so that the hook is prevented from falling off in the working process. The position of the safety buckle 4 is adjusted by the limiting device 5 through the insulating rope, so that safety is ensured during working. The safety rope is fixed through the safety rope seat 3, an operator ties the safety rope, the safety rope is protected for the operator, the occurrence of the phenomena of falling off of the ladder main body 7 and the hook and the like in the working process is prevented, and the safety is higher.

In order to prevent the hook body 1 from sliding during operation, affecting the safety of operators, the bent part of the hook body 1 is provided with an anti-slip piece 2. The anti-slip piece 2 is an anti-rotation guard plate for limiting the carrier rope, and the anti-rotation guard plate is of a folded plate structure. The bending part of the anti-rotation guard plate is arc-shaped, two ends of the anti-rotation guard plate are fixed on the hook body 1, and the bending part of the anti-rotation guard plate is positioned in the middle of the bending of the hook body 1.

When the position that needs to be fixed is the carrier rope, select to be provided with the couple of preventing changeing the backplate, it is more firm with the carrier rope cooperation, when the operation, prevent changeing the department of bending of backplate and just block on the carrier rope, increased the holding area, avoided the slip of the hook body 1 in the course of the work moreover, the operation is safer.

In order to enable the elastic piece 6 to automatically rebound after the centipede ladder is hung, the hook is prevented from falling off, the elastic piece 6 is a torsion spring, and the torsion spring passes through the pin shaft to be arranged between the safety buckle 4 and the hook body 1.

The limiting device 5 is a pulley, and one end of the insulating rope is fixed at the free end of the safety buckle 4 through the rear end of the pulley. The limiting device 5 is fixed on one side of the fixed end of the safety buckle 4 on the hook body 1. During operation, one end of the insulating rope is fixed at the free end of the safety buckle 4 and penetrates through the pulley, when the safety buckle is in operation, the insulating rope is pulled firstly, the free end of the safety buckle 4 rotates around the fixed end under the pulling of the insulating rope, the free end leaves the hook body 1, the insulating rope is loosened after the centipede ladder is hung, and the safety buckle 4 rotates and restores to the original state under the action of the elasticity of the torsion spring.

In order to facilitate the disassembly and the installation of the hook and realize the timely replacement, the ladder main body 7 and the hook are connected through a connecting device, the connecting device comprises a first protruding part 10 arranged at the bottom end of the hook and a second protruding part 11 arranged at the top end of the ladder main body 7, the first protruding part 10 is provided with external threads, the second protruding part 11 is provided with internal threads, and the first protruding part 10 is in threaded fit with the second protruding part 11; a connector 8 is further provided below the first boss 10 so that the connector 8 can penetrate into the inside of the ladder main body 7.

Through holes 9 are formed in positions, corresponding to the ladder main body 7, of the connector 8, so that the ladder main body 7 is connected with the hooks through rivets after being connected with the hooks through threads.

When in connection, the connector 8 of the hook penetrates into the top end of the ladder main body 7 until the first protruding part 10 of the hook is contacted with the second protruding part 11 of the ladder main body 7, after screwing, the first protruding part 10 is matched with the second protruding part 11, the connector 8 is just aligned with the through hole 9 on the ladder main body 7, and the rivet penetrates through the through hole 9 to connect the ladder main body 7 with the hook. The rivet connection prevents relative rotation between the ladder main body 7 and the hook, and is connected and fixed simultaneously through the rivet and the threads, so that the connection between the ladder main body 7 and the hook is firmer, and the safety is improved.

Example 2

Referring to fig. 2, a multi-scene special centipede ladder for subways comprises a ladder main body 7 and a hook which are detachably connected, wherein the hook comprises a hook body 1 and a safety buckle 4, one end of the safety buckle 4 is connected to the hook body 1 through a pin shaft, and an elastic piece 6 is arranged on the safety buckle 4, so that the other end of the safety buckle 4 is naturally clamped on the hook body 1 in a natural state; the hook body 1 is provided with a limiting device 5 for adjusting the position of the safety buckle 4; the hook body 1 is also provided with a safety rope seat 3 at the end connected with the ladder main body 7, and a lantern ring for fixing the safety rope is arranged on the safety rope seat 3.

The bent part of the hook body 1 is provided with an anti-slip piece 2. The anti-slip piece 2 is an anti-slip sleeve which is sleeved at the bending part of the hook body 1. For the centipede ladder hanging part is a hard beam, the anti-skid piece 2 of the embodiment 1 is not tightly connected and is not firmly fixed, the anti-skid sleeve is used for connection, the connection is more tight, and the hook is prevented from rotating on the hard beam.

In order to prevent the hook body 1 from sliding in the working process and affecting the safety of operators, the elastic piece 6 is a spring, one end of the spring is fixed on the safety buckle 4, and the other end is fixed on the hook body 1 below the safety buckle 4.

The limiting device 5 is a pull rod, one end of the pull rod is fixedly connected with the pin bolt, and the pull rod is connected with the safety buckle 4 through the pin bolt; the other end of the pull rod is provided with a perforation for fixing the insulating rope. The pin bolt penetrates through one end of the hook body 1 to be fixedly connected with the safety buckle 4, and the other end of the pin bolt is fixedly connected with the pull rod, so that when the pull rod is pulled, the pull rod drives the safety buckle 4 to rotate through the pin shaft. The pull rod is right angle or obtuse angle with safety buckle 4 between, make the free end setting of pull rod in the outside of coupler body 1, the pull rod free end passes the perforation and is connected with insulating rope, before the work, pulling insulating rope, under insulating rope's drive, the pull rod rotates downwards, thereby it is rotatory to drive safety buckle 4 to same direction, safety buckle 4 leaves coupler body 1, form the space between safety buckle 4 and coupler body 1, hang the back with the centipede ladder, loosen insulating rope, safety buckle 4 resumes free state under the elasticity effect of spring, make safety buckle 4 and coupler body 1 contact, prevent coupler body 1 from droing from the hanger.

The ladder main body 7 and the hook are connected through a connecting device, the connecting device comprises a first protruding part 10 arranged at the bottom end of the hook and a second protruding part 11 arranged at the top end of the ladder main body 7, the first protruding part 10 is provided with external threads, the second protruding part 11 is provided with internal threads, and the first protruding part 10 is in threaded fit with the second protruding part 11; a connector 8 is further provided below the first boss 10 so that the connector 8 can penetrate into the inside of the ladder main body 7.

The foregoing embodiment numbers of the present utility model are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments. The centipede ladder is not limited to the specific forms of the two embodiments, and other combination forms capable of realizing the safety buckle, the limiting device, the connecting device and the connection are all within the protection scope of the utility model.

The embodiments of the present utility model have been described above with reference to the accompanying drawings, but the present utility model is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present utility model and the scope of the claims, which are to be protected by the present utility model.

Claims

1. The utility model provides a special centipede ladder of subway which characterized in that: the hook comprises a hook body and a safety buckle, wherein the hook body and the safety buckle are detachably connected, one end of the safety buckle is connected to the hook body through a pin shaft, and an elastic piece is arranged on the safety buckle, so that the other end of the safety buckle is naturally clamped on the hook body in a natural state; the hook body is provided with a limiting device for adjusting the position of the safety buckle; the safety rope seat is further arranged at one end, connected with the ladder main body, of the hook body, and a lantern ring used for fixing the safety rope is arranged on the safety rope seat.

2. A centipede ladder for subways as defined in claim 1, wherein: the bent part of the hook body is provided with an anti-slip piece.

3. A centipede ladder for subways as defined in claim 2, wherein: the anti-slip piece is an anti-rotation guard plate for limiting the carrier rope, and the anti-rotation guard plate is of a folded plate structure.

4. A subway-specific centipede ladder as set forth in claim 3, wherein: the bending part of the anti-rotation guard plate is arc-shaped, two ends of the anti-rotation guard plate are fixed on the hook body, and the bending part of the anti-rotation guard plate is positioned in the middle of the bending of the hook body.

5. A centipede ladder for subways as defined in claim 2, wherein: the anti-slip piece is an anti-slip sleeve, and the anti-slip sleeve is sleeved at the bending part of the hook body.

6. A centipede ladder for subways as defined in claim 1, wherein: the limiting device is a pulley, and one end of the insulating rope is fixed at the free end of the safety buckle through the rear end of the pulley.

7. A centipede ladder for subways as defined in claim 1, wherein: the limiting device is a pull rod, one end of the pull rod is fixedly connected with the pin bolt, and the safety buckle is connected with the safety buckle through the pin bolt; the other end of the pull rod is provided with a perforation for fixing the insulating rope.

8. A centipede ladder for subways as defined in claim 1, wherein: the ladder main body is connected with the hook through a connecting device, the connecting device comprises a first protruding part arranged at the bottom end of the hook and a second protruding part arranged at the top end of the ladder main body, the first protruding part is provided with external threads, the second protruding part is provided with internal threads, and the first protruding part is in threaded fit with the second protruding part; the connector is further arranged below the first protruding portion, so that the connector can penetrate into the ladder main body.

9. A subway-specific centipede ladder as set forth in claim 8, wherein: through holes are formed in positions, corresponding to the ladder main body, of the connector, and the ladder main body is connected with the hooks through rivets after being connected with the hooks through threads.