An elevator door opening support mechanism for elevator maintenance
By designing an elevator door opening support mechanism consisting of a main support rod, a secondary support rod, and a limiting rod, the problem of existing devices being unable to adjust the support distance has been solved, achieving improved support flexibility and safety applicable to different elevator models.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING ESSENS ELEVATOR CO LTD
- Filing Date
- 2025-08-18
- Publication Date
- 2026-06-02
AI Technical Summary
The existing elevator door opening support device cannot adjust the support distance, resulting in a narrow range of applications and low practicality.
An elevator door opening support mechanism has been designed, comprising a main support rod, a secondary support rod, a connecting block, a compression spring, a stop plate, a limit spring, and a limit rod. The support distance can be adjusted by the movement of the limit rod and the elastic force of the compression spring, making it suitable for different elevator models.
It improves the flexibility and safety of elevator door support, prevents elevator door closure from affecting maintenance operations, expands the scope of application of the device, and enhances its practicality.
Smart Images

Figure CN224313025U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of elevator maintenance auxiliary devices, and in particular to an elevator door opening support mechanism for elevator maintenance. Background Technology
[0002] Chinese patent document CN221680458U discloses an elevator door opening support device that is easy to maintain. The device includes a base plate, with two sets of support plates symmetrically fixedly installed at the top of the base plate along its longitudinal centerline. A cavity is formed within each support plate, and a lead screw is laterally rotatably installed within the cavity. A slider is slidably connected to the lead screw, and a support block is fixedly installed on the slider corresponding to the upper surface of the support plate. A connecting rod is provided on the support block corresponding to one side of the elevator door, and a door stop is fixedly installed at the top of the connecting rod. A rotating block is movably inserted at the end of the lead screw. Two sets of locking pins are symmetrically formed on the inner side of the rotating block, and a locking hole is formed on one side of the support plate corresponding to the locking pin positions. Two sets of anti-fall mechanisms are symmetrically installed on the upper surfaces of the two sets of support plates along the longitudinal centerline of the base plate. This invention provides an elevator door opening support device that is easy to maintain. By setting a door stop connected to the support plate via a lead screw, it ensures that the elevator doors on both sides will not automatically close, affecting the operator's maintenance operations.
[0003] The aforementioned elevator door opening support device, which is easy to maintain, cannot adjust the support distance during use. Since different elevator models have different door opening distances, it is difficult to adjust the support device according to the elevator door distance during use. Therefore, its application range is narrow and its practicality is low. Utility Model Content
[0004] The purpose of this utility model is to provide an elevator door opening support mechanism for elevator maintenance, which can solve the problem that it is difficult to adjust the support device according to the distance of the elevator door during use, resulting in a narrow range of application and low practicality.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an elevator door opening support mechanism for elevator maintenance, comprising a main support rod, a connecting block and a U-shaped plate, wherein a secondary support rod is provided on the main support rod;
[0006] The connecting block is equipped with a compression spring, and the compression spring is equipped with a stop plate;
[0007] The U-shaped plate is equipped with a limiting spring, and the limiting spring is equipped with a connecting movable plate. The connecting movable plate is equipped with a limiting round rod, which is used to limit the main support rod and the secondary support rod.
[0008] Preferably, a secondary support rod is slidably installed on the inner wall of the main support rod, and a connecting block is fixedly installed at one end of both the main support rod and the secondary support rod.
[0009] Preferably, a groove is provided on one side of the connecting block, a compression spring is fixedly installed on the inner wall of one side of the groove, a stop plate is fixedly installed on one side of the compression spring, a positioning rod is fixedly installed on the inner wall of one side of the groove, the positioning rod is located inside the compression spring and the outer wall of the positioning rod does not contact the inside of the compression spring, and one side of the stop plate is located in the groove and the stop plate and the connecting block are slidably installed.
[0010] Preferably, the backing plate has a positioning hole inside which the positioning rod can move, and one end of the positioning rod extends into the positioning hole on the backing plate.
[0011] Preferably, a U-shaped plate is fixedly installed on the top of the main support rod, a limit spring is fixedly installed on the bottom inner side of the U-shaped plate, a connecting movable plate is fixedly installed on the bottom of the limit spring, a limit round rod is fixedly installed on the bottom of the connecting movable plate, a pull slide rod is fixedly installed on the top of the connecting movable plate, one end of the pull slide rod extends to the top of the U-shaped plate and is fixedly installed with a handle, and the pull slide rod and the connecting movable plate are slidably installed.
[0012] Preferably, both the main support rod and the secondary support rod have holes inside for the movement of the limiting rod. The limiting rod passes through the holes on the main support rod and the secondary support rod and extends to the bottom of the main support rod.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: The elevator door opening support mechanism for elevator maintenance, through the setting of the main support rod and the secondary support rod, can support the elevator door. This prevents the elevator door from closing and affecting the worker's work during maintenance, and also improves the worker's safety during maintenance. Furthermore, the setting of the limiting round rod can limit the main support rod and the secondary support rod. This allows the device to be adjusted according to the distance of the elevator door when supporting the elevator door, making the device applicable to different models of elevators, thereby increasing the applicability of the device and improving its practicality. Attached Figure Description
[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0015] Figure 1 This is a perspective view of the present utility model;
[0016] Figure 2 This is a schematic diagram of the structure of this utility model;
[0017] Figure 3 This is an enlarged view of part A of this utility model.
[0018] Reference numerals in the attached diagram: 1. Main support rod; 2. Secondary support rod; 3. Connecting block; 4. Compression spring; 5. Support plate; 6. Positioning rod; 7. U-shaped plate; 8. Limiting spring; 9. Connecting movable plate; 10. Limiting round rod; 11. Pulling slide rod. Detailed Implementation
[0019] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0020] Please see Figure 1-3 This utility model provides a technical solution: an elevator door opening support mechanism for elevator maintenance, including a main support rod 1, a connecting block 3, and a U-shaped plate 7. The main support rod 1 is provided with a secondary support rod 2; the connecting block 3 is provided with a compression spring 4, and the compression spring 4 is provided with a stop plate 5; the U-shaped plate 7 is provided with a limiting spring 8, the limiting spring 8 is provided with a connecting movable plate 9, and the connecting movable plate 9 is provided with a limiting round rod 10, which is used to limit the main support rod 1 and the secondary support rod 2.
[0021] Furthermore, a secondary support rod 2 is slidably installed on the inner wall of the main support rod 1. A connecting block 3 is fixedly installed at one end of both the main support rod 1 and the secondary support rod 2. A groove is formed on one side of the connecting block 3, and a compression spring 4 is fixedly installed on the inner wall of one side of the groove. A stop plate 5 is fixedly installed on one side of the compression spring 4. A positioning rod 6 is fixedly installed on the inner wall of one side of the groove. The positioning rod 6 is located inside the compression spring 4, and its outer wall does not contact the inside of the compression spring 4. One side of the stop plate 5 is located within the groove, and the stop plate 5 and the connecting block 3 are slidably installed. A positioning hole is formed inside the stop plate 5, allowing the positioning rod 6 to move. One end of the positioning rod 6 extends into the positioning hole on the stop plate 5. A U-shaped plate 7 is fixedly installed on the top of the main support rod 1. A limit spring 8 is fixedly installed on the bottom inner side of the U-shaped plate 7. A connecting movable plate 9 is fixedly installed at the bottom of the limit spring 8. A limit round rod 10 is fixedly installed at the bottom of the connecting movable plate 9. A pull rod 11 is fixedly installed on the top of the connecting movable plate 9. One end of the pull rod 11 extends above the U-shaped plate 7 and is fixedly installed with a handle. The pull rod 11 and the connecting movable plate 9 are slidably installed. Holes for the movement of the limiting rod 10 are opened inside the main support rod 1 and the secondary support rod 2. The limiting rod 10 passes through the holes on the main support rod 1 and the secondary support rod 2 and extends to the bottom of the main support rod 1. This setting can support the elevator door, so that when workers are performing maintenance, the elevator door will not close and affect their work. At the same time, it can also improve the safety of workers during maintenance. The setting of the limiting rod 10 can limit the main support rod 1 and the secondary support rod 2. In this way, when supporting the elevator door, the device can be adjusted according to the distance of the elevator door, so that the device is applicable to different models of elevators, thereby increasing the applicability of the device and improving its practicality.
[0022] Working principle: In use, the two sets of abutment plates 5 are placed between the two sets of elevator doors to support them. The spring force of the compression spring 4 keeps the two sets of abutment plates 5 tightly against the elevator doors, preventing them from shaking and falling. When the distance between the elevator doors needs to be adjusted, pull the sliding rod 11. Pulling the sliding rod 11 moves the connecting movable plate 9, which in turn moves the limiting rod 10. Moving the limiting rod 10 releases the limiting of the main support rod 1 and the secondary support rod 2. After adjusting the distance between the connecting abutment plates 5, release the sliding rod 11. The limiting spring 8 returns the limiting rod 10 to its original position, thus limiting the main support rod 1 and the secondary support rod 2.
[0023] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. An elevator door opening support mechanism for elevator maintenance, characterized in that, include: Supporting main rod (1), and supporting secondary rod (2) is provided on supporting main rod (1); Connecting block (3), the connecting block (3) is provided with compression spring (4), the compression spring (4) is provided with abutment plate (5); U-shaped plate (7), with a limiting spring (8) on the U-shaped plate (7), a connecting movable plate (9) on the limiting spring (8), and a limiting round rod (10) on the connecting movable plate (9). The limiting round rod (10) is used to limit the main support rod (1) and the secondary support rod (2).
2. The elevator door opening support mechanism for elevator maintenance according to claim 1, characterized in that: The inner wall of the main support rod (1) is slidably fitted with a secondary support rod (2), and a connecting block (3) is fixedly installed at one end of both the main support rod (1) and the secondary support rod (2).
3. The elevator door opening support mechanism for elevator maintenance according to claim 2, characterized in that: A groove is provided on one side of the connecting block (3), and a compression spring (4) is fixedly installed on the inner wall of one side of the groove. A stop plate (5) is fixedly installed on one side of the compression spring (4), and a positioning rod (6) is fixedly installed on the inner wall of one side of the groove. The positioning rod (6) is located inside the compression spring (4) and the outer wall of the positioning rod (6) does not contact the inside of the compression spring (4). One side of the stop plate (5) is located in the groove and the stop plate (5) and the connecting block (3) are slidably installed.
4. The elevator door opening support mechanism for elevator maintenance according to claim 3, characterized in that: The backing plate (5) has a positioning hole inside which the positioning rod (6) can move. One end of the positioning rod (6) extends into the positioning hole on the backing plate (5).
5. The elevator door opening support mechanism for elevator maintenance according to claim 4, characterized in that: A U-shaped plate (7) is fixedly installed on the top of the main support rod (1). A limit spring (8) is fixedly installed on the bottom inner side of the U-shaped plate (7). A connecting movable plate (9) is fixedly installed on the bottom of the limit spring (8). A limit round rod (10) is fixedly installed on the bottom of the connecting movable plate (9). A pull slide rod (11) is fixedly installed on the top of the connecting movable plate (9). One end of the pull slide rod (11) extends to the top of the U-shaped plate (7) and is fixedly installed with a handle. The pull slide rod (11) and the connecting movable plate (9) are slidably installed.
6. The elevator door opening support mechanism for elevator maintenance according to claim 5, characterized in that: The main support rod (1) and the secondary support rod (2) are both provided with holes for the movement of the limiting rod (10). The limiting rod (10) passes through the holes on the main support rod (1) and the secondary support rod (2) and extends to the bottom of the main support rod (1).