CN218934306U

CN218934306U - Elevator pit cat ladder device

Info

Publication number: CN218934306U
Application number: CN202223185310.4U
Authority: CN
Inventors: 张健杰; 张董斌; 钮俊杰; 邱家辉; 费雲峰; 张宁; 许泽斌; 钱成伟; 冯聪; 王文君; 於凯慧; 陈秋秋; 章羽
Original assignee: Hengda Fuji Elevator Co Ltd
Current assignee: Hengda Fuji Elevator Co Ltd
Priority date: 2022-11-29
Filing date: 2022-11-29
Publication date: 2023-04-28
Anticipated expiration: 2032-11-29

Abstract

The utility model discloses an elevator pit cat ladder device, which comprises a guide assembly and a cat ladder; the cat ladder is provided with a pedal rod; the guide assembly comprises a guide bracket, an anti-falling bracket and a weighing switch connected with the elevator safety loop; the ladder stand can be sleeved in the guide bracket in a vertically sliding way. According to the utility model, the guide assembly fixed on the side wall of the well is used for connecting and accommodating the ladder, when the ladder is not needed to be used, the ladder can be directly accommodated on the guide assembly, and when the ladder is used, the ladder is slid down and opened, so that the occupation of the ladder to the space of the well is reduced; through adding the weighing switch who establishes and link to each other with elevator safety circuit to utilize the anticreep support to combine together weighing switch and cat ladder and realize the linkage, when accomodating the cat ladder, weighing switch is pushed down, and elevator safety circuit is normally circular telegram, and when taking down the cat ladder, weighing switch pops up, and elevator safety circuit disconnection, thereby effectively ensured maintainer's safety. The utility model has the advantages of relatively small space occupation and charged protective measures.

Description

Elevator pit cat ladder device

Technical Field

The utility model relates to the technical field of elevators, in particular to an elevator pit ladder stand device.

Background

An elevator hoistway, called a hoistway for short, is a vertical passage in a building dedicated for elevator up and down running, and the cross section of the elevator hoistway is rectangular or square.

When carrying out elevator maintenance, generally need maintenance personal to erect the cat ladder in the elevator well, overhaul through climbing the cat ladder to the eminence.

Currently, chinese patent application publication No. CN106703678A discloses an anti-skid crawling ladder, which comprises a vertical rod, a pedal and anti-skid teeth, wherein the vertical rod is in a straight rod shape; the pedal is arranged between the vertical rods for people to pedal when climbing up and down the ladder; the antiskid teeth are arranged at the top end of the vertical rod in a zigzag manner.

However, the existing crawling ladder still has the following problems:

1. the traditional fixed ladder stand has large occupied area, ensures stability, needs to fix a plurality of positions, and is inconvenient to use under the condition of small space of a well;

2. the fixed pit ladder does not have an electric protection switch and lacks electric protection measures.

Therefore, the existing elevator pit ladder has the problems of large space occupation and lack of electrical protection measures.

Disclosure of Invention

The utility model aims to provide an elevator pit ladder stand device. The utility model has the advantages of relatively small space occupation and charged protective measures.

The technical scheme of the utility model is as follows: an elevator pit cat ladder device comprises a guide component fixedly arranged on the side wall of a well and a cat ladder capable of moving up and down and arranged on the guide component; the cat ladder is provided with a plurality of pedal rods; the guide assembly comprises a guide bracket fixedly arranged on the side wall of the well, an anti-falling bracket arranged in the guide bracket and used for placing the cat ladder, and a weighing switch arranged at the bottom of the anti-falling bracket and connected with the elevator safety loop; the ladder stand can be sleeved in the guide bracket in a vertically sliding mode.

In the elevator pit cat ladder device, guide grooves for the up-and-down movement of the cat ladder are formed in two sides of the guide support, and mounting holes are formed in the back of the guide support; two sides of the top of the cat ladder are in sliding connection with the guide grooves through bolts.

In the above-mentioned elevator pit ladder device, the anti-drop bracket is a concave bracket with an upward opening, and corresponds to the first pedal rod of the ladder; and the anti-drop bracket is provided with a through hole.

In the elevator pit cat ladder device, an L-shaped switch bracket is arranged below the anti-drop bracket; the weighing switch is detachably connected with the switch bracket, and the top of the weighing switch penetrates through the through hole.

In the elevator pit cat ladder device, an anti-skid rubber pad is arranged at the bottom of the cat ladder.

Compared with the prior art, the utility model utilizes the guide assembly fixed on the side wall of the well to connect and store the ladder, when the ladder is not needed to be used, the ladder can be directly stored on the guide assembly, and when the ladder is used, the ladder is slid down and opened, so that the occupation of the ladder to the space of the well is reduced;

through adding the weighing switch who establishes and link to each other with elevator safety circuit to utilize the anticreep support to combine together weighing switch and cat ladder and realize the linkage, when accomodating the cat ladder, weighing switch is pushed down, and elevator safety circuit is normally circular telegram, and when taking down the cat ladder, weighing switch pops up, and elevator safety circuit disconnection, thereby effectively ensured maintainer's safety.

Therefore, the utility model has the advantages of relatively small space occupation and electric protection measures.

Furthermore, the structure of the application is simple, the parts are easy to manufacture, the cost is low, and the production, popularization and application are convenient.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

fig. 2 is a side view of the present utility model (as received);

FIG. 3 is a side view of the utility model (in use);

FIG. 4 is a schematic view of the structure of the guide bracket of the present utility model;

FIG. 5 is a schematic view of the structure of the anti-drop bracket of the present utility model;

FIG. 6 is a front view of the switch bracket of the present utility model;

FIG. 7 is a side view of the switch bracket of the present utility model;

FIG. 8 is a schematic view of the structure of the guide assembly of the present utility model;

fig. 9 is a side view of the guide assembly of the present utility model.

The marks in the drawings are: the device comprises a 1-cat ladder, a 11-pedal rod, a 2-guiding bracket, a 21-guiding groove, a 22-mounting hole, a 3-anti-falling bracket, a 31-through hole, a 4-switch bracket and a 5-weighing switch.

Detailed Description

The utility model is further illustrated by the following figures and examples, which are not intended to be limiting.

Examples. An elevator pit cat ladder device is shown in fig. 1-3, and comprises a guide component fixedly arranged on the side wall of a well and a cat ladder 1 which can be arranged on the guide component in an up-and-down moving way; the cat ladder 1 consists of two armrests and a plurality of pedal rods 11 which are horizontally arranged;

as shown in fig. 8 and 9, the guiding component comprises a guiding bracket 2 fixedly arranged on the side wall of a hoistway, an anti-falling bracket 3 arranged in the guiding bracket 2 and used for placing the crawling ladder 1, and a weighing switch 5 arranged at the bottom of the anti-falling bracket 3 and connected with an elevator safety loop; the ladder stand 1 is sleeved in the guide bracket 2 in a vertically sliding way.

As shown in fig. 4, guide grooves 21 for the up-and-down movement of the ladder stand 1 are formed on both sides of the guide bracket 2, and mounting holes 22 are formed on the back; the two sides of the top of the cat ladder 1 are connected with the guide groove 21 in a sliding way through bolts.

As shown in fig. 5, the anti-falling bracket 3 is a concave bracket with an upward opening, and corresponds to the first pedal rod 11 of the cat ladder 1; the anti-drop bracket 3 is provided with a through hole 31.

As shown in fig. 6 and 7, an L-shaped switch bracket 4 is arranged below the anti-drop bracket 3; the weighing switch 5 is detachably connected with the switch bracket 4, and a micro switch at the top of the weighing switch 5 penetrates through the through hole 31.

As shown in fig. 4, the bottom of the ladder stand 1 is provided with an anti-slip rubber pad.

Working principle:

the guiding bracket 2 is installed on the wall of the pit through the installation hole 22, and then the cat ladder 1 is placed on the anti-falling bracket 3 in the guiding bracket 2; at this time, the first pedal rod 11 of the cat ladder 1 is just placed in the groove of the anti-drop bracket 3; two support rods of the cat ladder 1 pass through the guide groove 21 through half-tooth bolts to be connected with the guide bracket 2 in a sliding way;

the switch bracket 4 is arranged below the anti-falling bracket 3, the weighing switch 5 is arranged on the side wall of the switch bracket 4, and the micro switch at the top of the weighing switch 5 penetrates out through the through hole 31 of the anti-falling bracket 3;

when the cat ladder 1 is stored, the pedal rod 11 is placed in the anti-drop bracket 3 to just press the micro switch of the weighing switch 5, and at the moment, the elevator safety loop is normally electrified;

when maintenance is needed, the crawling ladder 1 is lifted up, the grooves of the anti-falling brackets 3 are fallen off, the micro switch is sprung up, the elevator safety loop is disconnected, and the elevator is in a maintenance state;

then the cat ladder 1 is rotated and put down, so that the bottom of the cat ladder 1 is contacted with the ground of the pit, and at the moment, the cat ladder 1 slides down to the lowest part of the guide groove 21;

the ladder stand 1 is further opened until the top of the ladder stand 1 is abutted against the inner side wall of the guide bracket 2, the ladder stand 1 is in a stable state, and an maintainer can go in and out of the hoistway to overhaul through the ladder stand 1;

after the overhaul is finished, the original state of the cat ladder 1 is restored to be in the vertical state, the first pedal rod 11 is placed in the anti-drop bracket 3, and the elevator safety loop is restored to be in the normal state.

Claims

1. An elevator pit cat ladder device, its characterized in that: comprises a guide component fixedly arranged on the side wall of a well and a cat ladder (1) which can be arranged on the guide component in an up-and-down moving way; a plurality of pedal rods (11) are arranged on the cat ladder (1); the guiding assembly comprises a guiding bracket (2) fixedly arranged on the side wall of the well, an anti-falling bracket (3) arranged in the guiding bracket (2) and used for placing the crawling ladder (1), and a weighing switch (5) arranged at the bottom of the anti-falling bracket (3) and connected with the elevator safety loop; the crawling ladder (1) can be sleeved in the guide bracket (2) in a vertically sliding mode.

2. An elevator pit cat ladder device according to claim 1, characterized in that: guide grooves (21) for the up-and-down movement of the crawling ladder (1) are formed in two sides of the guide bracket (2), and mounting holes (22) are formed in the back of the crawling ladder; two sides of the top of the cat ladder (1) are in sliding connection with the guide grooves (21) through bolts.

3. An elevator pit cat ladder device according to claim 1, characterized in that: the anti-drop bracket (3) is a concave bracket with an upward opening and corresponds to the first pedal rod (11) of the cat ladder (1); the anti-drop bracket (3) is provided with a through hole (31).

4. An elevator pit cat ladder device according to claim 2, characterized in that: an L-shaped switch bracket (4) is arranged below the anti-drop bracket (3); the weighing switch (5) is detachably connected with the switch bracket (4), and the top of the weighing switch (5) penetrates through the through hole (31).

5. An elevator pit cat ladder device according to claim 1, characterized in that: the bottom of the crawling ladder (1) is provided with an anti-skid rubber pad.