Safe and adjustable maintenance frame for elevator installation
By designing an adjustable support base and telescopic support rod structure, the problem of the elevator maintenance rack's width being unable to be adjusted was solved, enabling flexible adjustment of the maintenance rack's width and improving maintenance efficiency and convenience.
Patent Information
- Application Number
- CN202520058829.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-09
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-01-09
AI Technical Summary
The existing elevator maintenance rack cannot be adjusted in width, which requires frequent movement when repairing large areas, reducing maintenance efficiency.
A safe and adjustable elevator installation maintenance rack was designed. The width of the maintenance rack can be adjusted through an adjustable support base and a telescopic support rod structure. The extension and retraction of the extension support plate are controlled by a drive motor and a rotating shaft. Combined with the use of a scissor lift and casters, it is easy to move and position.
The width of the maintenance rack can be flexibly adjusted, which improves maintenance efficiency, reduces the frequency of movement, and enhances the ease of operation for staff.
Smart Images

Figure CN223779734U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of elevator maintenance technology, specifically a safe and adjustable elevator installation and maintenance frame. Background Technology
[0002] An elevator is a vertical lifting machine powered by an electric motor, equipped with a box-shaped cabin, used for transporting people or goods in multi-story buildings. There are also escalator types, where steps are mounted on a continuously running track; these are commonly known as automatic elevators. Maintenance racks are typically required when repairing elevators.
[0003] The utility model patent application publication number CN218202061U discloses a multi-functional elevator maintenance rack, which facilitates the maintenance of elevators by staff at different height positions;
[0004] The width of the aforementioned repair rack cannot be adjusted during use. If the repair area is large, the rack needs to be moved during the repair process to cover the entire area, which is time-consuming, labor-intensive, and reduces repair efficiency. Utility Model Content
[0005] The purpose of this utility model is to provide a safe and adjustable elevator installation and maintenance frame to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A safe and adjustable elevator installation and maintenance frame includes a lower mounting frame, an upper mounting frame symmetrically arranged above the lower mounting frame, a scissor lift frame arranged between the lower mounting frame and the upper mounting frame, and an adjustable support base arranged on the top of the upper mounting frame.
[0008] The adjustable support base includes a support base body disposed on the top of the upper mounting frame. The bottom of the support base body is fixedly connected to the top of the upper mounting frame. Extended support plates extend through both the left and right sides of the support base body. Telescopic support rods are fixedly connected to both ends of the bottom of the two extended support plates on the side away from the upper mounting frame. A drive motor is fixedly connected to the bottom of the upper mounting frame. The output end of the drive motor extends into the interior of the support base body and is connected to a rotating shaft via a coupling. A disc is fixedly connected to the end of the rotating shaft away from the drive motor. Connecting shafts are rotatably connected to both ends of the disc. Limiting grooves are formed at both ends of the inner walls on the front and rear sides of the support base body. Limiting sliders are slidably connected inside the four limiting grooves.
[0009] As a preferred embodiment of this utility model, the two connecting shafts are centrally symmetrically arranged, and the ends of the two connecting shafts away from the disk are respectively rotatably connected to the sides of the two extended support plates that are close to each other.
[0010] As a preferred embodiment of this utility model, the other ends of the four limiting sliders extend to the outside of the limiting groove and are fixedly connected to the two side surfaces of the two extended support plates respectively, and the surfaces of the two extended support plates are slidably connected to the inner wall of the support body.
[0011] As a preferred embodiment of this utility model, the upper and lower ends of the right side of the scissor lift frame are rotatably connected to the surfaces of the lower mounting frame and the upper mounting frame, respectively, and the upper and lower ends of the left side of the scissor lift frame are slidably connected to the surfaces of the lower mounting frame and the upper mounting frame, respectively.
[0012] As a preferred embodiment of this utility model, a ladder is fixedly connected to the right side surface of the upper mounting frame, and the ladder is arranged between two telescopic support rods on the right side.
[0013] As a preferred embodiment of this utility model, a base plate is fixedly connected to the bottom of the lower mounting frame, and telescopic support feet are fixedly connected to the four corners of the bottom of the base plate. The bottom of the support base body is provided with casters, and the total number of casters is four.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] 1. In this utility model, two extended support plates can extend to the outside of the support body and are supported by telescopic support rods on both sides, which makes the width of the maintenance frame wider and facilitates maintenance work. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a front view structural diagram of the present utility model;
[0018] Figure 3 This is a top view of the adjustable support base of this utility model.
[0019] In the diagram: 1. Lower mounting frame; 2. Upper mounting frame; 3. Scissor lift frame; 4. Ladder; 5. Adjustable support base; 501. Support base body; 502. Extension support plate; 503. Telescopic support rod; 504. Drive motor; 505. Rotating shaft; 506. Disc; 507. Connecting shaft; 508. Limiting slide groove; 509. Limiting slider; 6. Base plate; 7. Telescopic support foot; 8. Casters. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0021] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, and several embodiments of the utility model will be provided. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and complete.
[0022] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0024] For examples, please refer to Figure 1-3 This utility model provides a technical solution:
[0025] A safe and adjustable elevator installation and maintenance frame includes a lower mounting frame 1, an upper mounting frame 2 symmetrically arranged above the lower mounting frame 1, a scissor lift frame 3 arranged between the lower mounting frame 1 and the upper mounting frame 2, and an adjustable support base 5 at the top of the upper mounting frame 2. The adjustable support base 5 includes a support base body 501 disposed at the top of the upper mounting frame 2, the bottom of the support base body 501 being fixedly connected to the top of the upper mounting frame 2, and extension support plates 502 penetrating both the left and right sides of the support base body 501, with the bottoms of the two extension support plates 502 being away from the upper mounting frame 2. Telescopic support rods 503 are fixedly connected to both ends of one side of frame 2. A drive motor 504 is fixedly connected to the bottom of the upper frame 2. The output end of the drive motor 504 extends into the interior of the support body 501 and is connected to a rotating shaft 505 via a coupling. A disc 506 is fixedly connected to the end of the rotating shaft 505 away from the drive motor 504. Both ends of the disc 506 are rotatably connected to connecting shafts 507. Limiting grooves 508 are opened at both ends of the inner walls on the front and rear sides of the support body 501. Limiting sliders 509 are slidably connected inside the four limiting grooves 508.
[0026] like Figure 3 As shown, the two connecting shafts 507 are centrally symmetrically arranged. The ends of the two connecting shafts 507 away from the disc 506 are rotatably connected to the sides of the two extended support plates 502 that are close to each other. The other ends of the four limiting sliders 509 extend to the outside of the limiting groove 508 and are fixedly connected to the two side surfaces of the two extended support plates 502 respectively. The surfaces of the two extended support plates 502 are slidably connected to the inner wall of the support body 501.
[0027] like Figure 1 , Figure 2 As shown, the upper and lower ends of the right side of the scissor lift frame 3 are rotatably connected to the surfaces of the lower mounting frame 1 and the upper mounting frame 2, respectively. The upper and lower ends of the left side of the scissor lift frame 3 are slidably connected to the surfaces of the lower mounting frame 1 and the upper mounting frame 2, respectively. A ladder 4 is fixedly connected to the surface of the right side of the upper mounting frame 2. The ladder 4 is located between the two telescopic support rods 503 on the right side. A base plate 6 is fixedly connected to the bottom of the lower mounting frame 1. Telescopic support feet 7 are fixedly connected to the four corners of the bottom of the base plate 6. A universal wheel 8 is provided at the bottom of the support body 501. There are a total of four universal wheels 8.
[0028] The working process of this utility model is as follows: When in use, the universal wheels 8 at the bottom are used to move the maintenance frame to a suitable position. The telescopic support legs 7 extend to support the maintenance frame until the universal wheels 8 leave the ground. The staff can climb to the top of the adjustable support base 5 via the ladder 4. The scissor lift frame 3 can raise the adjustable support base 5 to lift the staff to a suitable position. The drive motor 504 uses the rotating shaft 505 to rotate the disc 506. The two connecting shafts 507 push the extension support plates 502 on both sides to move outward. The four telescopic support rods 503 extend to support the ground. The two extension support plates 502 can widen the width of the maintenance frame to facilitate the maintenance work of the staff.
[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A safe and adjustable elevator installation and maintenance frame, comprising a lower mounting frame (1), characterized in that: An upper mounting frame (2) is symmetrically arranged above the lower mounting frame (1), a scissor lift frame (3) is arranged between the lower mounting frame (1) and the upper mounting frame (2), and an adjustable support base (5) is arranged on the top of the upper mounting frame (2). The adjustable support base (5) includes a support base body (501) disposed on the top of the upper mounting frame (2). The bottom of the support base body (501) is fixedly connected to the top of the upper mounting frame (2). Extension support plates (502) extend through both the left and right sides of the support base body (501). Telescopic support rods (503) are fixedly connected to both ends of the bottom of the two extension support plates (502) on the side away from the upper mounting frame (2). A drive motor (504) is fixedly connected to the bottom of the upper mounting frame (2). The output end of the drive motor (504) extends into the interior of the support body (501) and is connected to a rotating shaft (505) via a coupling. A disc (506) is fixedly connected to one end of the rotating shaft (505) away from the drive motor (504). Both ends of the disc (506) are rotatably connected to connecting shafts (507). Limiting grooves (508) are provided at both ends of the inner walls on the front and rear sides of the support body (501). Limiting sliders (509) are slidably connected inside the four limiting grooves (508).
2. The safety adjustable elevator installation and maintenance frame according to claim 1, characterized in that: The two connecting shafts (507) are centrally symmetrically arranged, and the ends of the two connecting shafts (507) away from the disk (506) are respectively rotatably connected to the sides of the two extended support plates (502) that are close to each other.
3. The safety adjustable elevator installation and maintenance frame according to claim 1, characterized in that: The other ends of the four limiting sliders (509) extend to the outside of the limiting groove (508) and are fixedly connected to the two side surfaces of the two extended support plates (502). The surfaces of the two extended support plates (502) are slidably connected to the inner wall of the support body (501).
4. The safety adjustable elevator installation and maintenance frame according to claim 1, characterized in that: The upper and lower ends of the right side of the scissor lift frame (3) are rotatably connected to the surfaces of the lower mounting frame (1) and the upper mounting frame (2), respectively, and the upper and lower ends of the left side of the scissor lift frame (3) are slidably connected to the surfaces of the lower mounting frame (1) and the upper mounting frame (2), respectively.
5. A safe and adjustable elevator installation and maintenance frame according to claim 1, characterized in that: A ladder (4) is fixedly connected to the right side surface of the upper mounting frame (2), and the ladder (4) is set between two telescopic support rods (503) on the right side.
6. The safety adjustable elevator installation and maintenance frame according to claim 1, characterized in that: The bottom of the lower mounting frame (1) is fixedly connected to a base plate (6), and telescopic support feet (7) are fixedly connected to the four corners of the bottom of the base plate (6). The bottom of the support body (501) is provided with casters (8), and the total number of casters (8) is four.
Citation Information
Patent Citations
Multifunctional maintenance frame for elevator maintenance
CN218202061U