CN220148948U - Climbing ladder escape door unlocking device, lift car and lifting equipment - Google Patents

Abstract

The utility model relates to the technical field of lifting equipment, and provides a climbing ladder escape door unlocking device, a lift car and lifting equipment, wherein the climbing ladder escape door unlocking device comprises a handle, a pull rope and a bolt; the handle is at least arranged at one position of the outer side of the upper top plate or the outer side of the lower bottom plate of the lifting equipment lift car; one end of the pull rope is connected with the handle, and the other end is connected with the bolt; the latch is arranged in the car and is suitable for switching between an open state and a locking state, the latch prevents the climbing escape door of the lifting equipment from being opened in the locking state, and the climbing escape door can be opened in the open state. By adopting the climbing escape door unlocking device provided by the utility model, a worker can open the climbing escape door outside the car, so that the worker can enter the car without detaching the anti-falling device, and the safety of the worker entering the car is improved.

Description

Climbing ladder escape door unlocking device, lift car and lifting equipment

Technical Field

The utility model relates to the technical field of lifting equipment, in particular to an unlocking device for an escape door of a crawling ladder, a lift car and lifting equipment.

Background

Lifting devices with a ladder stand as a guide rail are usually arranged in a tower barrel of the wind driven generator, and workers or cargoes can ascend or descend in the tower barrel by taking the lifting devices. Escape doors are usually arranged at the top and bottom of the elevator car and on the side facing the climbing ladder, and workers can enter and exit the elevator car through the escape doors.

At present, escape doors at the top and the bottom of a lift car of the lifting equipment can be opened outside the lift car, and a climbing escape door facing one side of the climbing ladder can only be opened from the inside of the lift car. Under the condition that staff outside the lift car cannot open the escape door of the cat ladder, when the staff wants to enter the inside of the lift car, the staff can only drag off the self-worn falling protector to enter the lift car from the escape door at the top or the bottom of the lift car without barriers, and in the process, the staff lacks the protection of the falling protector, so that the risk of casualties caused by falling from the cat ladder exists.

Disclosure of Invention

The utility model provides an unlocking device for a climbing ladder escape door, which is used for solving at least one technical defect in the prior art, and can enable staff outside a lift car to open the climbing ladder escape door of the lift car, so that the staff can enter the lift car without removing a falling protector, and the danger that the staff falls from the climbing ladder is avoided.

A second aspect of the utility model provides a car.

A third aspect of the utility model provides a lifting device.

In order to achieve the above purpose, the utility model provides an unlocking device for a ladder escape door, which comprises a handle, a pull rope and a bolt;

the handle is at least arranged at one position of the outer side of the upper top plate or the outer side of the lower bottom plate of the lifting equipment lift car;

one end of the pull rope is connected with the handle, and the other end of the pull rope is connected with the bolt;

the latch is arranged in the car and is suitable for switching between an open state and a locking state, the latch prevents the climbing escape door of the lifting equipment from being opened in the locking state, and the climbing escape door can be opened in the open state.

Optionally, the handle comprises an upper handle and a lower handle;

the upper handle is arranged on the outer side of the upper top plate of the car, and the lower handle is arranged on the outer side of the lower bottom plate of the car.

Optionally, the number of the bolts is multiple, and the ladder escape door unlocking device further comprises a handle;

one end of the handle is connected with the pull rope, and the other end of the handle is connected with the plurality of bolts.

Optionally, the ladder stand escape door unlocking device further comprises a fixing plate;

the fixing plate is arranged on the coaming in the car, and the pull rope penetrates through the fixing plate to be connected with the bolt.

Optionally, the latch is a spring latch.

In a second aspect, the utility model provides a car which runs along a ladder, wherein the car comprises an upper top plate, a lower bottom plate, a coaming and the ladder escape door unlocking device;

wherein, at least one of the upper top plate and the lower bottom plate is provided with an escape door, and one side of the coaming towards the cat ladder is provided with a cat ladder escape door.

Optionally, the upper top plate is provided with an upper escape door, and the lower bottom plate is provided with a lower escape door;

the upper escape door faces to the edge of one side of the ladder and the upper top plate faces to the edge of one side of the ladder, the lower escape door faces to the edge of one side of the ladder and the lower bottom plate faces to the edge of one side of the ladder, and the upper edge and the lower edge of the escape door of the ladder and the upper edge and the lower edge of the coaming are in edge sharing.

In a third aspect, the utility model provides lifting equipment comprising a ladder, a driving device and a car as claimed in any one of the preceding claims, the driving device being adapted to drive the car along the ladder.

The above-described one or more embodiments of the present utility model have at least the following advantageous effects:

the utility model provides an unlocking device for a climbing ladder escape door, which comprises a handle, a pull rope and a bolt, wherein the handle is at least arranged at one position of the outer side of an upper top plate or the outer side of a lower bottom plate of a lifting equipment lift car, one end of the pull rope is connected with the handle, the other end of the pull rope is connected with the bolt, the bolt is arranged in the lift car and is suitable for switching between an open state and a locking state, the bolt prevents the climbing ladder escape door of the lifting equipment from being opened in the locking state, and the climbing ladder escape door can be opened in the open state. When the staff needs to enter into lifting device's car from the cat ladder in, the staff that is located outside the car can pulling handle, and the pulling force can be transmitted to the bolt of installing inside the car through the stay cord to pull open the bolt, make the staff can open the cat ladder escape door and enter into the car inside, then the staff alright dismantle down the safety hook from the cat ladder, close the cat ladder escape door and operate lifting device, thereby need not to dismantle the safety hook before getting into in the car, avoided the danger that the staff falls from the cat ladder, improved the security when the staff gets into the car.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

In order to more clearly illustrate the utility model or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic structural view of an unlocking device for a ladder escape door provided by the utility model;

fig. 2 is a schematic structural view of a car provided by the present utility model;

fig. 3 is an enlarged partial schematic view of the area a in fig. 2.

Reference numerals:

10. an unlocking device for the escape door of the ladder; 11. an upper handle; 12. a lower handle; 13. a pull rope; 14. a plug pin; 15. a handle; 16. a fixing plate;

20. a car; 21. an upper top plate; 211. an upper escape door; 22. a lower base plate; 221. a lower escape door; 23. coaming plate; 231. a ladder stand escape door;

30. and (5) climbing a ladder.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In describing embodiments of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "coupled," "coupled," and "connected" should be construed broadly, and may be either a fixed connection, a removable connection, or an integral connection, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in embodiments of the present utility model will be understood in detail by those of ordinary skill in the art.

In embodiments of the utility model, unless expressly specified and limited otherwise, a first feature "up" or "down" on a second feature may be that the first and second features are in direct contact, or that the first and second features are in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

Embodiments of the present utility model are described below with reference to fig. 1 to 3. It should be understood that the following description is only illustrative of embodiments of the utility model and is not intended to limit the utility model in any way.

In order to enable staff outside the elevator to open the climbing escape door of the elevator, so that the staff can enter the elevator without removing the anti-falling device, and the risk that the staff falls from the climbing elevator is avoided, the utility model provides the climbing escape door unlocking device, the elevator and lifting equipment. The utility model provides an unlocking device for a ladder escape door.

The utility model provides an unlocking device for a ladder stand escape door, which comprises a handle, a pull rope and a bolt. The handle is arranged at least at one position of the outer side of the upper top plate or the outer side of the lower bottom plate of the lifting equipment lift car, one end of the pull rope is connected with the handle, and the other end of the pull rope is connected with the bolt. The bolt sets up inside the car, and specifically, the bolt sets up in the bounding wall of car and cat ladder escape door's juncture, is suitable for switching between open state and locking state, and the cat ladder escape door of lifting device is prevented to open at locking state bolt, and cat ladder escape door can be opened at open state.

When the staff outside the car goes up and down along the cat ladder, in order to prevent that the staff from falling from the car, the staff is worn the safety hook generally, and the one end detachable sliding connection of safety hook is on the cat ladder, and the other end is connected with the safety belt that the staff dressed. When the staff needs to enter into lifting device's car from the cat ladder in, the staff that is located outside the car can pulling handle, and the pulling force can be transmitted to the bolt of installing inside the car through the stay cord to pull open the bolt, make the staff can open the cat ladder escape door and enter into the car inside, then the staff alright dismantle down the safety hook from the cat ladder, close the cat ladder escape door and operate lifting device, thereby need not to dismantle the safety hook before getting into in the car, avoided the danger that the staff falls from the cat ladder, improved the security when the staff gets into the car.

As shown in fig. 1, the handles of the cat ladder escape door unlocking device 10 may include an upper handle 11 and a lower handle 12 in some embodiments. As shown in fig. 2, the upper handle 11 is provided outside the upper ceiling 21 of the car 20, and the lower handle 12 is provided outside the lower floor 22 of the car 20. The number of the pull ropes 13 can be 2, one pull rope 13 is connected with the upper handle 11 and the bolt 14, and the other pull rope 13 is connected with the lower handle 12 and the bolt 14.

When a worker approaches the upper top plate 21 from the cat ladder 30 above the car 20, the upper handle 11 can be pulled, and the pull rope 13 connected with the upper handle 11 can pull the latch 14, so that the cat ladder escape door 231 is opened; when a worker approaches the lower floor 22 from the cat ladder 30 below the car 20, the lower handle 12 may be pulled, and the pull rope 13 connected to the lower handle 12 may pull the latch 14, thereby opening the cat ladder escape door 231.

In some embodiments, the ladder escape door unlocking device 10 may include a plurality of latches 14, for example, 2, 3, etc., so that the ladder escape door 231 can be closed more stably. As shown in fig. 1 and 3, the cat ladder escape door unlocking device 10 may include 2 bolts 14.

The ladder escape door unlocking device 10 can further comprise a handle 15, one end of the handle 15 is connected with the pull rope 13, and the other end of the handle 15 is connected with the plurality of bolts 14. For example, as shown in fig. 1 and 3, both pins 14 are connected to the handle 15, and both pull ropes 13 are connected to the middle of the handle 5.

Thus, when the pull cord 13 is pulled, the pulling force can be transmitted to the plurality of pins 14 simultaneously by the pull handle 15, thereby pulling the plurality of pins 14 apart simultaneously. In addition, a worker in the car 20 can pull the pull handle 15 and pull the plurality of bolts 14 at the same time, so that the worker in the car 20 can conveniently open the climbing escape door 231.

As shown in fig. 1 and 3, in some embodiments, the cat ladder escape door unlocking device 10 may further comprise a fixed plate 16. The fixed plate 16 may be mounted on a coaming in the car 20 (i.e. the inner wall of the car 20), the fixed plate 16 may be provided with a through hole, and the pull rope 13 may pass through the through hole in the fixed plate 16 to be connected with the latch 14. Thus, the fixing plate 16 can fix the rope 13 in the car 20, thereby preventing the rope 13 from being scattered.

In some embodiments, the latch 14 may be a spring latch, and when the pull rope 13 pulls the spring latch, the spring latch may be switched from a locking state to an opening state, so that the ladder escape door 231 may be opened; when the pull rope 13 is loosened, the spring bolt can be automatically switched to a locking state to close the ladder escape door 231.

In some embodiments, the pull cord 13 may be a brake cable, which may include a spool and a brake cable. The two ends of the brake cable are respectively connected with the handle and the bolt to play a role in transmitting tensile force; the spool outside the brake cable can play a role in protecting the brake cable, and when the spool is installed, the spool can be fixed on the coaming 23 of the car 20, so that the brake cable is fixed to prevent the brake cable from scattering.

On the other hand, the embodiment of the utility model also provides a car. As shown in fig. 2, the cat ladder 30 may serve as a guide rail for the car 20, and the car 20 may move up and down along the cat ladder 30. The car 20 comprises an upper top plate 21, a lower bottom plate 22 and a coaming 23, wherein the upper top plate 21, the lower bottom plate 22 and the coaming 23 are enclosed to form a cuboid-shaped closed space, and the car 20 can protect staff or goods. The car 20 further comprises a cat ladder escape door unlocking device 10 according to any one of the above embodiments. Wherein, at least one of the upper top plate 21 and the lower bottom plate 22 is provided with an escape door, and one side of the coaming 23 facing the ladder 30 is provided with a ladder escape door 231. In this way, after the worker opens the escape door on the upper top plate 21 or the lower bottom plate 22 and opens the cat ladder escape door 231 through the cat ladder escape door unlocking device 10, the worker can enter the inside of the car 20 without detaching the fall arrester, thereby avoiding danger.

As shown in fig. 2, the upper top plate 21 is provided with an upper escape door 211, and the lower bottom plate 22 is provided with a lower escape door 221. The edge of the upper escape door 211 facing the side of the ladder 30 is co-bordered with the edge of the upper top plate 21 facing the side of the ladder 30, the edge of the lower escape door 221 facing the side of the ladder 30 is co-bordered with the edge of the lower bottom plate 22 facing the side of the ladder 30, and the upper and lower edges of the ladder escape door 231 are co-bordered with the upper and lower edges of the coaming plate 23.

Thus, when the upper escape door 211 and the cat ladder escape door 231 are opened, the upper top plate 21 is in a concave shape, and the top surface of the car 20 and the side surface facing the cat ladder 30 are not provided with articles for preventing the movement of the worker and the fall arrester, so that the worker can enter the car 20 from the notch of the concave shape. Similarly, when the lower escape door 221 and the cat ladder escape door 231 are opened, the lower bottom plate 22 is shaped like a Chinese character 'Fu', and objects for preventing the movement of the worker and the falling protector do not exist on the bottom surface of the car 20 and the side surface facing the cat ladder 30, so that the worker can enter the car 20 from the notch of the Chinese character 'Fu'.

In yet another aspect, the present utility model also provides a lifting apparatus including a ladder 30, a driving device (not shown), and a car 20. Wherein the ladder 30 can act as a guide for the movement of the car 20. The driving device may be a wire rope driven driving device or a rack and pinion driven driving device, and the driving device may be mounted on the ladder 30 or may be mounted on the car 20, and may be specifically set according to requirements. The driving device is suitable for driving the lift car 20 to run along the crawling ladder 30, so that workers or cargoes can ride the lift car 20 to move up and down in the wind driven generator tower, and the efficiency of the workers and cargoes in the wind driven generator tower is improved.

It should be noted that, the technical solutions in the embodiments of the present utility model may be combined with each other, but the basis of the combination is based on the fact that those skilled in the art can realize the combination; when the combination of the technical solutions contradicts or cannot be realized, it should be considered that the combination of the technical solutions does not exist, i.e. does not fall within the scope of protection of the present utility model.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (8)

1. The escape door unlocking device of the cat ladder is characterized by comprising a handle, a pull rope and a bolt;

the handle is at least arranged at one position of the outer side of the upper top plate or the outer side of the lower bottom plate of the lifting equipment lift car;

one end of the pull rope is connected with the handle, and the other end of the pull rope is connected with the bolt;

the latch is arranged in the car and is suitable for switching between an open state and a locking state, the latch prevents the climbing escape door of the lifting equipment from being opened in the locking state, and the climbing escape door can be opened in the open state.

2. The apparatus of claim 1, wherein the handle comprises an upper handle and a lower handle;

the upper handle is arranged on the outer side of the upper top plate of the car, and the lower handle is arranged on the outer side of the lower bottom plate of the car.

3. The apparatus of claim 1, wherein the number of pins is plural, the apparatus further comprising a handle;

one end of the handle is connected with the pull rope, and the other end of the handle is connected with the plurality of bolts.

4. The apparatus of claim 1, wherein the apparatus further comprises a fixing plate;

the fixing plate is arranged on the coaming in the car, and the pull rope penetrates through the fixing plate to be connected with the bolt.

5. The apparatus of any one of claims 1-4, wherein the latch is a spring latch.

6. A car, wherein the car runs along a climbing ladder, and the car comprises an upper top plate, a lower bottom plate, a coaming and the climbing ladder escape door unlocking device according to any one of claims 1 to 5;

wherein, at least one of the upper top plate and the lower bottom plate is provided with an escape door, and one side of the coaming towards the cat ladder is provided with a cat ladder escape door.

7. The car of claim 6, wherein the upper roof panel is provided with an upper escape door and the lower floor panel is provided with a lower escape door;

the upper escape door faces to the edge of one side of the ladder and the upper top plate faces to the edge of one side of the ladder, the lower escape door faces to the edge of one side of the ladder and the lower bottom plate faces to the edge of one side of the ladder, and the upper edge and the lower edge of the escape door of the ladder and the upper edge and the lower edge of the coaming are in edge sharing.

8. A lifting device comprising a ladder, a drive means and a car as claimed in claim 6 or 7, said drive means being adapted to drive said car along said ladder.