A folding roof maintenance platform for an elevator car

Abstract

The application discloses a folding roof maintenance platform of an elevator car, the folding step assembly is arranged on the roof and has an unfolded state of unfolding in a first direction to form a standing area and a folded state of being shrunk to an intermediate position of the roof in the first direction to form a protective cover; the telescopic guardrail is arranged on the roof and surrounds the outside of the folding step assembly; the telescopic guardrail has a raised state of moving away from the roof and a lowered state of moving close to the roof; the linkage control device is connected with the folding step assembly and the telescopic guardrail and is used for synchronously driving the folding step assembly and the telescopic guardrail to move; when the folding step assembly is in the unfolded state, the telescopic guardrail is in the raised state; when the folding step assembly is in the folded state, the telescopic guardrail is in the lowered state. The application can solve the problem of insufficient roof space maintenance and effectively meet the maintenance operation demand of the elevator car.

Description

TECHNICAL FIELD

[0001] The present application relates to the elevator technical field, in particular to a folding roof maintenance platform of elevator car. BACKGROUND

[0002] In the machine roomless elevator, the hoisting machine system is installed on the top of the shaft, and the normal maintenance of the hoisting machine and other components is carried out by standing on the roof surface of the car. When the roof space of the machine roomless elevator is small, the roof space is divided by the upper beam and other components on the upper part of the roof, so that the activity space of the maintenance personnel on the roof is too small, which is not safe for the maintenance personnel, and the activity space is too small to be fully maintained. The prior art increases a fixed maintenance platform on the upper beam, but this greatly increases the requirement for the top space, and the competitiveness is greatly reduced in the environment of the current building floor, especially the villa and other top height environments. SUMMARY

[0003] In view of the above technical problems, the purpose of the present application is to provide a folding roof maintenance platform of elevator car, which can solve the problem of insufficient roof space maintenance and effectively meet the maintenance operation requirements of the elevator car.

[0004] The technical solution of the present application is realized as follows: a folding roof maintenance platform of elevator car, the roof maintenance platform comprises a folding pedal assembly, a telescopic guardrail and a linkage control device;

[0005] The folding pedal assembly is arranged on the roof and has an unfolded state in which a standing area is formed in a first direction, and a folded state in which the folding pedal assembly is retracted to an intermediate position of the roof in the first direction and forms a protective cover;

[0006] The telescopic guardrail is arranged on the roof and surrounds the outer side of the folding pedal assembly; the telescopic guardrail has a raised state in which it moves away from the roof, and a lowered state in which it moves towards the roof;

[0007] The linkage control device is connected with the folding pedal assembly and the telescopic guardrail, and is used for synchronously driving the folding pedal assembly and the telescopic guardrail to move; when the folding pedal assembly is in the unfolded state, the telescopic guardrail is in the raised state; when the folding pedal assembly is in the folded state, the telescopic guardrail is in the lowered state.

[0008] Further, the first direction extends in a horizontal plane; the folding step assembly comprises fixed steps and movable steps; the fixed steps are arranged at a middle position of the roof; both sides of the fixed steps are provided with a plurality of movable steps; the plurality of movable steps on the same side are unfolded to form the unfolded state and are folded to form the folded state; and the linkage control device is drivingly connected with the movable steps.

[0009] Further, the roof maintenance platform comprises a locking and unlocking mechanism arranged on the roof; the locking and unlocking mechanism is used for locking or unlocking at least one of the plurality of movable steps on the same side in the unfolded state.

[0010] Further, the roof is provided with a track extending in the first direction; the movable steps are provided with rollers; and the rollers are arranged on the track in a rolling manner.

[0011] Further, the telescopic guardrail is a three-sided fence comprising fixed supports and movable supports; the fixed supports are arranged on the roof; the movable supports are movably arranged on the fixed supports; and the linkage control device is connected with the movable supports.

[0012] Further, the linkage control device comprises a driving motor, a first transmission mechanism and a second transmission mechanism; the driving motor and the folding step assembly are drivingly connected through the first transmission mechanism; and the driving motor and the telescopic guardrail are drivingly connected through the second transmission mechanism.

[0013] Thanks to the use of the above technical solutions, the present application has the following advantages compared with the prior art:

[0014] The present application uses the folding step assembly and the telescopic guardrail in cooperation; in the folding and unfolding process of the folding step assembly, the linkage control device synchronously controls the telescopic guardrail to rise and fall; when the car is normally operated, the folding step assembly is adjusted to the folded state and the telescopic guardrail is adjusted to the lowered state; when the car is maintained, the folding step assembly is adjusted to the unfolded state and the telescopic guardrail is adjusted to the raised state; in this way, the problem of insufficient roof maintenance space is effectively solved, the requirement for the height of the top floor without a machine room is reduced, and the safety of the maintenance personnel is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0015] The technical solutions of the present application will be further described below in combination with the drawings:

[0016] Figure 1 FIG. 1 is a structural schematic view of the folding step assembly in the folded state of the present application;

[0017] Figure 2 FIG. 2 is a structural schematic view of the folding step assembly in the unfolded state of the present application

[0018] Figure 3 Structure diagram of the telescopic guardrail of the present application;

[0019] Figure 4 Control diagram of the linkage control device of the present application;

[0020] Wherein: 1, folding step assembly; 11, fixed step; 12, movable step; 2, telescopic guardrail; 21, fixed support, 22, movable support; 3, linkage control device; 31, driving motor; 32, transmission mechanism; 4, car roof; 41, track. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present application are described in detail below with reference to the accompanying drawings, so that the advantages and features of the present application can be more easily understood by those skilled in the art, and the scope of protection of the present application can be more clearly defined.

[0022] As Figures 1-4 shown is a folding car roof maintenance platform of an elevator car according to the present embodiment, which is pre-installed on the car roof of the car for maintenance use. The car roof maintenance platform comprises a folding step assembly 1, a telescopic guardrail and a linkage control device 3. The folding step assembly 1 is installed on the car roof 4 and has an unfolded state in which it is unfolded in a first direction to form a standing area and a folded state in which it is folded to an intermediate position of the car roof 4 in the first direction to form a protective cover. Maintenance personnel perform activities in the standing area. The first direction is the extending direction in the horizontal plane, which can be the length direction or the width direction of the car roof 4. In the folded state, the protective cover formed by the folding step assembly 1 covers the car roof wheels and electrical elements on the car roof 4 to protect the car roof wheels and electrical elements. In the present embodiment, the folding step assembly 1 comprises a fixed step 11 and a movable step 12. The fixed step 11 is bolted to the upper beam of the car roof 4 and is located at the center line position of the car roof wheels. A plurality of movable steps 12 are arranged on both sides of the fixed step 11. The plurality of movable steps 12 on the same side are arranged in the first direction, and the plurality of movable steps 12 on the same side are unfolded to form the unfolded state and folded to form the folded state. By unfolding the movable steps 12, the standing area is formed.

[0023] In the embodiment, two groups of rails 41 extending in the first direction are arranged on the roof 4. The movable steps 12 are provided with rollers. The rollers are in rolling engagement with the rails 41. The movable steps 12 on the same side are hinged to each other, and the movable step 12 close to the fixed step 11 is hinged to the fixed step 11. The movable step 12 away from the fixed step 11 is driven to move by the linkage control device 3, and then the movable steps 12 on the same side are folded or unfolded relative to each other.

[0024] In the embodiment, the telescopic guardrail described above is mounted on the roof 4 and surrounds the outside of the folding step assembly 1. The telescopic guardrail 2 has a raised state of moving away from the roof 4 and a lowered state of moving close to the roof 4. When the telescopic guardrail 2 is raised, it protects the maintenance personnel. The telescopic guardrail 2 of the embodiment is a three-sided fence, including a fixed support 21 and a movable support 22. The fixed support 21 is fixed to the roof 4. The fixed support 21 is processed with a vertical guide groove, and the movable support 22 is inserted into the guide groove, so that the movable support 22 can be arranged on the fixed support 21 up and down.

[0025] The linkage control device 3 described above is connected with the folding step assembly 1 and the telescopic guardrail 2, and is used to synchronously drive the folding step assembly 1 and the telescopic guardrail to move. The linkage control device 3 is drivingly connected with the movable steps 12, and the linkage control device 3 is connected with the movable support. Specifically, through the driving of the linkage control device 3, when the folding step assembly 1 is in the unfolded state, the telescopic guardrail is in the raised state. When the folding step assembly 1 is in the folded state, the telescopic guardrail is in the lowered state. The linkage control device 3 of the embodiment includes a driving motor 31 and a transmission mechanism 32. The transmission mechanism 32 includes a first transmission mechanism and a second transmission mechanism. The driving motor 31 and the folding step assembly 1 are drivingly connected through the first transmission mechanism 32. The driving motor 31 and the telescopic guardrail are drivingly connected through the second transmission mechanism 32. The first transmission mechanism of the embodiment can be a multi-link mechanism, a screw transmission mechanism, etc. The second transmission mechanism can be a screw transmission mechanism, a cam link mechanism, etc.

[0026] The roof maintenance platform of the embodiment includes a locking and unlocking mechanism arranged on the roof 4. The locking and unlocking mechanism is used to lock or unlock at least one of the movable steps 12 on the same side in the unfolded state. When the folding step assembly 1 is unfolded, the movement of the folding step assembly 1 is limited by the locking and unlocking mechanism.

[0027] In specific use, the folding step assembly 1 is controlled by the linkage control device 3 to synchronously lift the telescopic guardrail 2 during folding and unfolding. The folding step assembly 1 is adjusted to the folded state and the telescopic guardrail is adjusted to the lowered state during normal operation of the car, and the folding step assembly 1 is adjusted to the unfolded state and the telescopic guardrail is adjusted to the raised state during maintenance of the car, so as to effectively solve the problem of insufficient maintenance space of the car roof 4, reduce the requirement for the height of the top floor without machine room, and meet the safety guarantee of the maintenance personnel.

[0028] The above description is only an embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, which is made by using the content of the present application, is also included in the patent protection scope of the present application.

Claims

1. A folding roof service platform for an elevator car, characterized by: The roof maintenance platform comprises a folding step assembly, a telescopic guardrail and a linkage control device; The folding step assembly is arranged on the roof and has an unfolded state in which the folding step assembly is unfolded in a first direction to form a standing area and a folded state in which the folding step assembly is folded in the first direction to an intermediate position of the roof to form a protective cover; The telescopic guardrail is arranged on the roof and surrounds the outside of the folding step assembly; the telescopic guardrail has a raised state in which the telescopic guardrail moves away from the roof and a lowered state in which the telescopic guardrail moves towards the roof; The linkage control device is connected with the folding step assembly and the telescopic guardrail and is used for synchronously driving the folding step assembly and the telescopic guardrail to move; When the folding step assembly is in the unfolded state, the telescopic guardrail is in the raised state; When the folding step assembly is in the folded state, the telescopic guardrail is in the lowered state; The first direction extends in a horizontal plane; the folding step assembly comprises a fixed step and a movable step; the fixed step is arranged at the intermediate position of the roof; a plurality of movable steps are arranged on both sides of the fixed step; the movable steps on the same side are unfolded to form the unfolded state and the movable steps on the same side are folded to form the folded state; The linkage control device is drivingly connected with the movable step; The roof maintenance platform comprises a locking and unlocking mechanism arranged on the roof; the locking and unlocking mechanism is used for locking or unlocking at least one of the movable steps on the same side in the unfolded state.

2. A folding roof maintenance platform for an elevator car according to claim 1, characterized in that: The roof is provided with a track extending in the first direction; the movable step is provided with a roller; the roller is arranged on the track in a rolling manner.

3. A folding roof maintenance platform for an elevator car as defined in claim 1, characterized in that: The telescopic guardrail is a three-sided fence and comprises a fixed support and a movable support; the fixed support is arranged on the roof; the movable support is movably arranged on the fixed support; the linkage control device is connected with the movable support.

4. A folding roof maintenance platform for an elevator car as defined in claim 1, characterized in that: The linkage control device comprises a driving motor, a first transmission mechanism and a second transmission mechanism; the driving motor and the folding step assembly are drivingly connected through the first transmission mechanism; the driving motor and the telescopic guardrail are drivingly connected through the second transmission mechanism.

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