CN210637028U

CN210637028U - Ladder stand device for entering and exiting elevator pit

Info

Publication number: CN210637028U
Application number: CN201921169622.1U
Authority: CN
Inventors: 龙志强
Original assignee: Beijing Shougang Futong Elevator Co Ltd
Current assignee: Beijing Shouronghui Technology Development Co ltd
Priority date: 2019-07-23
Filing date: 2019-07-23
Publication date: 2020-05-29
Anticipated expiration: 2029-07-23

Abstract

The utility model relates to a ladder climbing device for entering and exiting an elevator pit, which comprises a ladder, wherein the height of the ladder is the distance from the bottom of a landing door gate to the bottom of the pit, one side of the ladder, which is far away from the landing door gate, is hinged with a cylinder, one end of the cylinder, which is far away from the ladder, is hinged on the side wall of a well, and two hinge points are on the same horizontal line; the ladder comprises support columns positioned on two sides and connecting columns fixedly connected to the support columns at intervals. The utility model discloses have when not using the ladder can place on the well lateral wall, can remove layer door gate department during the use, make things convenient for the staff to climb up the cat ladder, operate safer effect.

Description

Ladder stand device for entering and exiting elevator pit

Technical Field

The utility model relates to a cat ladder device especially relates to a cat ladder device of business turn over elevator pit.

Background

With the rapid development of social economy and the continuous improvement of living standard of common people, the elevator becomes an indispensable part in daily life. An elevator is a vertical vehicle that runs in a building and takes on the important task of transporting passengers and goods. In order to facilitate installation of these components and inspection and maintenance in the future, a ladder device that can facilitate entry and exit of workers into and out of the pit must be installed in each elevator. The pit ladder climbing device is an indispensable component of the whole elevator system.

Since in the elevator industry today, in order to increase the cost performance of elevators, elevators requiring the same car area occupy a smaller building area, i.e. the dimensions of the elevator hoistway are required to be as small as possible, it is desirable that the arrangement of the elevator components within the hoistway is as compact as possible. Because the elevator guide rails are arranged on the two sides of the elevator, in order to meet the requirement that the arrangement of elevator components in the hoistway is as compact as possible, the common pit ladder stand device fixes the ladder stand on the side wall of the hoistway through expansion bolts, but the ladder stand is far away from the landing door opening, so that an operator is difficult to climb the ladder stand, and after climbing the ladder stand, the operator needs to go over to use a door lifter to jack the elevator door, so that the operation is more difficult, and the elevator is easy to fall off carelessly.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a cat ladder device of business turn over elevator pit, its advantage: when the ladder is not used, the ladder can be placed on the side wall of the well, and can be moved to a landing door gate during use, so that workers can conveniently climb up the ladder, and the operation is safer.

The above object of the present invention can be achieved by the following technical solutions: a ladder climbing device for entering and exiting an elevator pit comprises a ladder, wherein the height of the ladder is the distance from the bottom of a landing door gate to the bottom of the pit, one side of the ladder, which is far away from the landing door gate, is hinged with a telescopic device, one end of the telescopic device, which is far away from the ladder, is hinged on the side wall of a hoistway, and two hinged points are on the same horizontal line; the ladder comprises support columns positioned on two sides and connecting columns fixedly connected to the support columns at intervals.

Through above-mentioned technical scheme, under the normality, the ladder is directly placed on the well lateral wall, and when using, pulling ladder to layer door gate department, the telescoping device extension simultaneously, the staff can be directly maintained the elevator along the ladder from layer door gate to the pit down. After the elevator ladder is used, the telescopic device shrinks, a worker can drive the ladder to return to the position of the side wall of the well, the ladder can be placed on the side wall of the well when not used, the ladder can be moved to the position of the door opening of the landing door when used, the worker can conveniently climb up the ladder, and the operation is safer.

The utility model discloses further set up to: the telescopic device is a cylinder.

Through above-mentioned technical scheme, just can directly drive the ladder through the cylinder and reach layer door entrance department or get back to well lateral wall department, the staff only need manually play the guide effect can, more laborsaving.

The utility model discloses further set up to: an emergency stop button is also arranged on one side inside the landing door.

Through above-mentioned technical scheme, need press the scram button when maintaining the elevator, can avoid causing the potential safety hazard to the staff when the staff moves downwards at elevator pit maintenance time elevator.

The utility model discloses further set up to: the upper end sliding connection of spliced pole has a couple, on the well lateral wall rigid coupling have with couple matched with handle.

Through above-mentioned technical scheme, can be to the couple when not using on the handle, avoid the ladder to place the shakiness on the well lateral wall and take place to empty the normal operating that influences the elevator.

The utility model discloses further set up to: the couple is close to the one end surface rigid coupling of ladder has the joint piece, the support column is close to the rigid coupling has the joint ring on the one end internal surface of couple, when upwards pulling couple, the joint piece orientation the one end of joint ring with the joint ring orientation the one end butt of joint piece.

Through above-mentioned technical scheme, can realize the sliding fit between couple and the support column, when upwards pulling couple, joint piece and joint ring butt can avoid the couple roll-off from the ladder. The matching and the separation between the hook and the handle can be realized by sliding the hook.

The utility model discloses further set up to: one end of the hook is inserted into the supporting column, and the other end of the hook is flat.

Through the technical scheme, when the ladder is used, the ladder handle can be directly clamped into a gap between two layers of doors of the elevator, so that the relative position of the ladder is fixed.

The utility model discloses further set up to: the connecting column is cuboid.

Through above-mentioned technical scheme, compare the cylinder, the cuboid form is bigger with the contact surface of staff's sole, also is more difficult to step on smooth, operates safelyr.

The utility model discloses further set up to: and anti-skid grains are arranged on the upper surface of the connecting column along the length direction of the connecting column.

Through the technical scheme, the phenomenon that workers slip down from the ladder due to the fact that shoes slip when the workers go up and down the ladder can be avoided.

To sum up, the utility model discloses a beneficial technological effect does:

1. when the ladder is not used, the ladder can be placed on the side wall of the shaft, and when the ladder is used, the ladder can be moved to a landing door, so that workers can conveniently climb up the ladder, and the operation is safer;

2. the arrangement of the air cylinder can realize that the ladder can be directly driven to reach the door opening of the landing door or return to the side wall of the shaft way through the air cylinder, and workers only need to manually play a role in guiding, so that labor is saved;

3. the hook and the handle can be hooked on the handle when not in use, so that the problem that the elevator normally runs due to the fact that the elevator is toppled when the ladder is placed unstably on the side wall of the hoistway is avoided.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention in a normal state;

FIG. 2 is a schematic view of the overall structure of the present invention in use;

figure 3 is a schematic view showing the hook and support post connection structure.

In the figure, 1, a ladder; 11. a support pillar; 111. a snap ring; 12. connecting columns; 2. a cylinder; 3. driving the rod; 31. hooking; 32. a clamping block; 4. a handle; 5. an emergency stop button.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to the figure 1, for the utility model discloses a ladder stand device of business turn over elevator pit, including setting up ladder 1 on the well lateral wall, ladder 1 highly for the distance of layer door gate bottom to pit bottom, one side interval of keeping away from a layer door gate at ladder 1 articulates there are two cylinders 2, and the one end that ladder 1 was kept away from to cylinder 2 articulates on the well lateral wall and two pin joints are on same water flat line. The ladder 1 comprises support columns 11 positioned on two sides and connecting columns 12 fixedly connected to the support columns 11 at intervals, the connecting columns 12 are cuboid, and the support columns 11 are rectangular sleeve-shaped. The upper end of a connecting column 12 of the ladder 1 is connected with a U-shaped hook 31 in a sliding way, and the U-shaped opening of the hook 31 faces downwards; simultaneously, a U-shaped handle 4 is fixedly connected to the side wall of the well, the U-shaped opening of the handle 4 faces the side wall of the well, and a vertical strip-shaped through hole is formed between the handle 4 and the side wall of the well. When the ladder 1 is placed on the side wall of the shaft, the hook 31 can be inserted into the handle 4 from above, preventing the ladder 1 from tilting. The upper surface of two couples 31 of connecting simultaneously has a driving lever 3, just can realize letting simultaneously between two couples 31 and the handle 4 cooperation and drop through pulling driving lever 3.

Referring to fig. 3, a frame-shaped clamping block 32 is fixedly connected to the outer surface of one end of the hook 31 close to the ladder 1, and the clamping block 32 is slidably connected with the inner surface of the supporting column 11; meanwhile, a frame-shaped clamping ring 111 is fixedly connected to the inner surface of one end of the supporting column 11 close to the hook 31, and the clamping ring 111 is connected with the outer surface of the hook 31 in a sliding manner. Can realize the sliding fit between couple 31 and the support column 11, when upwards pulling couple 31, joint piece 32 and joint ring 111 butt can avoid couple 31 from ladder 1 upper roll-off. The engagement and disengagement between the hook 31 and the handle 4 can be achieved by sliding the hook 31.

Referring to fig. 2, one end of the hook 31 is inserted into the support column 11, and the other end is flat, so that when the ladder 1 is used, the handle 4 of the ladder 1 can be directly clamped into a gap between two layers of doors of the elevator, thereby fixing the relative position of the ladder 1.

Referring to fig. 1, an emergency stop button 5 is further arranged on one side inside a landing door, when a worker needs to enter an elevator pit, the emergency stop button 5 needs to be pressed, a safety loop of the elevator is disconnected, and an elevator control mechanism controls the elevator to be incapable of normally operating; the potential safety hazard to the staff caused by the downward operation of the elevator when the staff maintains in the elevator pit can be avoided. When the worker returns after maintenance, the emergency stop button 5 is pulled out, the safety loop of the elevator is normal, and the elevator can normally run under the control of the elevator control mechanism.

Referring to fig. 1, the upper surface of the connecting column 12 is provided with anti-slip lines along the length direction thereof, so that it is possible to prevent a worker from slipping down due to insufficient friction force when getting on or off the ladder 1.

In summary, the hook 31 of the ladder 1 is hung on the handle 4 on the side wall of the hoistway under normal state, and normal operation of the elevator cannot be influenced. When the emergency stop button is used, a worker needs to press the emergency stop button 5 first to stop the elevator. Then the cylinder 2 is started, the cylinder 2 drives the ladder 1 to move towards the direction of the landing door opening, when the ladder moves to a position close to the side wall where the landing door opening is located, a worker can slide upwards to drive the rod 3, the hook 31 is disconnected from the handle 4, and then the cylinder 2 is continuously started and the ladder 1 is pulled to the position of the landing door opening in a manual guiding mode. The worker can hang the hook 31 in the gap between the two layers of doors and can also play a role of a door jacking device. The worker can then follow the ladder 1 down to the pit for maintenance of the elevator. After the maintenance is finished, starting the contraction rod of the cylinder 2 to contract, driving the ladder 1 to the side wall of the shaft by the cylinder 2, enabling the ladder 1 to reach the handle 4 at the moment, sliding to drive the rod 3 to enable the hook 31 to be hung on the handle 4, then pulling out the emergency stop button 5, enabling the elevator to recover to run, and finishing the whole maintenance work.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides an access elevator pit's cat ladder device which characterized in that: the height of the ladder (1) is the distance from the bottom of a landing door gate to the bottom of a pit, one side, far away from the landing door gate, of the ladder (1) is hinged with a telescopic device, one end, far away from the ladder (1), of the telescopic device is hinged to the side wall of a well, and the two hinged points are on the same horizontal line; the ladder (1) comprises support columns (11) located on two sides and connecting columns (12) fixedly connected to the support columns (11) at intervals.

2. A ladder climbing device to and from an elevator pit according to claim 1, characterized in that: the telescopic device is a cylinder (2).

3. A ladder climbing device to and from an elevator pit according to claim 1, characterized in that: an emergency stop button (5) is also arranged on one side inside the doorway of the landing door.

4. A ladder climbing device to and from an elevator pit according to claim 1, characterized in that: the upper end sliding connection of spliced pole (12) has a couple (31), on the well lateral wall rigid coupling have with couple (31) matched with handle (4).

5. A ladder arrangement for accessing an elevator pit as claimed in claim 4, wherein: couple (31) are close to the one end surface rigid coupling of ladder (1) has joint piece (32), support column (11) are close to the rigid coupling has joint ring (111) on the one end internal surface of couple (31), when upwards pulling couple (31), joint piece (32) orientation the one end of joint ring (111) with joint ring (111) orientation the one end butt of joint piece (32).

6. A ladder arrangement for accessing an elevator pit as claimed in claim 5, wherein: one end of the hook (31) is inserted into the supporting column (11), and the other end of the hook is flat.

7. A ladder climbing device to and from an elevator pit according to claim 1, characterized in that: the connecting column (12) is cuboid.

8. A ladder climbing device to and from an elevator pit according to claim 7, characterized in that: the upper surface of the connecting column (12) is provided with anti-skid grains along the length direction.