Maintenance frame convenient to adjust and used for elevator maintenance

By designing a limit device and push block structure in the elevator maintenance rack, the disassembly process of the support device is simplified, the problem of difficult disassembly when the stabilizer bar is worn or damaged is solved, and the maintenance and repair efficiency is improved.

CN223674076UActive Publication Date: 2025-12-16DEZHOU HENGSHENG MECHANICAL & ELECTRICAL EQUIPMENT CO LTD
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Patent Information

Application Number
CN202520184516.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-06
Publication Date
2025-12-16
Estimated Expiration
2035-02-06

AI Technical Summary

Technical Problem

When the stabilizer bar of an existing elevator maintenance rack is worn or damaged, it requires the use of specialized tools and the cooperation of multiple people to disassemble it, which increases maintenance and repair costs and reduces efficiency.

Method used

An elevator maintenance rack was designed, which includes a load-bearing platform, support devices, and a support structure. The disassembly process of the support devices is simplified by the cooperation of limit devices and push blocks, avoiding reliance on special tools.

Benefits of technology

It improves the efficiency of maintenance and repair of support devices, reduces the workload of staff, and enhances the practicality and flexibility of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a maintenance frame convenient to adjust and used for elevator maintenance, and relates to the technical field of elevators. A maintenance frame convenient to adjust and used for elevator maintenance comprises a bearing platform, two supporting devices and four supporting devices are arranged on the bearing platform, each supporting device comprises a second fixed mounting base, a second rotary mounting base and a fixed limiting block, and fixed limiting block grooves are formed in the outer walls of the two sides of the bearing platform; in the limiting device, a pushing block is pushed to move downwards to drive a limiting sliding block to move downwards and drive a first reset spring to contract at the same time, then the limiting sliding block moves downwards to enable the outer wall of the other end of the limiting sliding block to be disengaged from the interior of a second limiting sliding block groove, and then a fixed limiting block is pulled to be taken out from the interior of a fixed limiting block groove; in this way, the supporting device is easy and fast to disassemble, it is avoided that a worker needs to disassemble the supporting device with the help of a special tool, and the maintenance and overhaul efficiency of the supporting device is effectively improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of lift, especially in a kind of maintenance frame for elevator maintenance of being convenient to adjust. BACKGROUND

[0002] Elevator is the permanent transport equipment that its car runs in at least two columns vertical to horizontal plane or with the inclination angle of less than 15 ° to plumb line, Chinese utility model patent, authorized announcement number "CN221318809U", discloses a kind of maintenance frame for elevator maintenance of being convenient to adjust, including bearing platform, four groups of connecting rods are evenly distributed and installed in bearing platform lower end face, support rod is sleeved on connecting rod, buffering spring is fixedly installed between support rod and connecting rod, stabilizing rod is rotatably installed on mounting seat, mounting rod is fixedly arranged on the side end surface of stabilizing rod, the top of mounting rod is rotatably connected with friction plate, mounting hole is set in bearing platform, mounting hole is provided with height adjusting mechanism, the utility model provides a kind of maintenance frame for elevator maintenance of being convenient to adjust, by being provided with height adjusting mechanism in bearing platform and being provided with two groups of stabilizing rods in bearing platform lower end face design, the friction plate of stabilizing rod two sides is fixed on the inner wall of car two sides, so that the structure of overall maintenance frame is more stable, when the height of maintenance frame and car top opening height are not adapted.

[0003] The above technical scheme is provided with height adjusting mechanism in bearing platform and two groups of stabilizing rods in bearing platform lower end face design, when staff climbs bearing plate by second ladder, gravity presses spring, so that connecting rod is retracted into support rod, the stabilizing rod that is pressed down moves to two sides under the action of moving wheel, the friction plate of stabilizing rod two sides is fixed on the inner wall of car two sides, so that the structure of overall maintenance frame is more stable, but the above technical scheme still has certain defects, for example, the friction plate of stabilizing rod two sides is fixed on the inner wall of car two sides, so that the structure of overall maintenance frame is more stable, but when stabilizing rod is worn or damaged in time use, staff needs to use special tool and cooperate with multiple people to disassemble it, which increases the maintenance and overhaul cost of stabilizing rod and reduces the maintenance and overhaul efficiency of stabilizing rod. UTILITY MODEL CONTENTS

[0004] The utility model aims at least to solve one of the technical problems existing in prior art, provide a kind of maintenance frame for elevator maintenance of being convenient to adjust, can solve the problem that equipment is fixed on the inner wall of car two sides by the friction plate of stabilizing rod two sides, so that the structure of overall maintenance frame is more stable, but when stabilizing rod is worn or damaged in time use, staff needs to use special tool and cooperate with multiple people to disassemble it, which increases the maintenance and overhaul cost of stabilizing rod and reduces the maintenance and overhaul efficiency of stabilizing rod.

[0005] In order to achieve the above object, the utility model provides the following technical scheme: a convenient to adjust's maintenance frame for elevator maintenance, including bearing platform, bearing platform is provided with two support device and four support device,

[0006] Support device includes second fixed mounting seat, second rotary mounting seat and fixed limiting block, and the outer wall of the upper end of the second fixed mounting seat is slidably connected with the inner part of the corresponding fixed limiting block groove, the outer wall of the fixed limiting block is slidably connected with the inner part of the corresponding fixed limiting block groove, the outer wall of the upper end of the second rotary mounting seat is rotatably connected with the inner part of the lower end of the second fixed mounting seat, the outer wall of the end of the second rotary mounting seat away from the second fixed mounting seat is fixedly connected with a second sliding rod, the outer wall of the end of the second sliding rod away from the second rotary mounting seat is slidably connected with a limiting block in the groove, the outer wall of the fixed limiting block is provided with two push block grooves, and the inner part of the two push block grooves is slidably connected with a push block.

[0007] Among them, the upper surface of the first sliding rod is provided with two first limiting sliding block grooves, the inner part of the two first limiting sliding block grooves is slidably connected with a limiting sliding block, the inner part of the two push block grooves is provided with two first return springs, the outer wall of the second sliding rod sleeve is slidably connected with a second sliding rod sleeve, the outer wall of the second sliding rod sleeve is provided with a plurality of limiting block grooves, the inner part of the groove of the lower end of the second sliding rod is provided with a second return spring, the inner wall of the upper end of the fixed limiting block groove is provided with two second limiting sliding block grooves, the outer wall of the lower end of the second sliding rod sleeve is fixedly connected with a fixed support, the outer wall of the end of the fixed support away from the second sliding rod sleeve is fixedly connected with a first fixed mounting seat, the inner part of the end of the first fixed mounting seat away from the fixed support is rotatably connected with a friction support plate, and the two support devices are respectively arranged on the two sides of the bearing platform.

[0008] Preferably, the outer wall of the end of the fixed limiting block close to the second fixed mounting seat is slidably connected with the groove in the outer wall of one side of the second fixed mounting seat, and the inner part of the two push block grooves is respectively communicated with the inner part of the corresponding first limiting sliding block groove.

[0009] Among them, the end of the two push blocks close to the limiting sliding block is slidably extended to the inner part of the first limiting sliding block groove and is fixedly connected with the outer wall of the corresponding limiting sliding block.

[0010] Preferably, the two ends of the four first return springs are respectively fixedly connected with the outer wall of the corresponding push block and the inner wall of the lower end of the push block groove, the outer wall of the end of the limiting block away from the second sliding rod is in contact with the inner wall of the corresponding limiting block groove, and the two ends of the second return spring are respectively fixedly connected with the outer wall of the end of the corresponding limiting block and the inner wall of the groove of the lower end of the second sliding rod.

[0011] Two limiting sliding blocks are in contact with the inner walls of the corresponding second limiting sliding block grooves.

[0012] Preferably, the support device comprises a first sliding rod and a first sliding rod sleeve.

[0013] Preferably, the first sliding rod is fixedly connected to the lower surface of the bearing platform.

[0014] Preferably, the first sliding rod sleeve is slidably connected to the outer wall of the first sliding rod.

[0015] Preferably, the first sliding rod sleeve is slidably connected to the outer wall of the first sliding rod.

[0016] Preferably, the first sliding rod sleeve is slidably connected to the outer wall of the first sliding rod.

[0017] Preferably, the first sliding rod sleeve is slidably connected to the outer wall of the first sliding rod.

[0018] Compared with the prior art, the utility model has the advantages that:

[0019] 1、The maintenance frame for elevator maintenance is convenient to adjust, the pushing block in the limiting device is pushed to move downward to drive the limiting sliding block to move downward and drive the first reset spring to contract, then the limiting sliding block is moved downward to make the other end of the outer wall to be separated from the inner wall of the second limiting sliding block groove, then the fixed limiting block is pulled out from the inner wall of the fixed limiting block groove, the supporting device is pulled out from the bearing platform, the supporting device is simple and fast to disassemble, the staff needs to use special tools to disassemble, the maintenance and repair efficiency of the supporting device is improved, and the work load of the staff is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0020] The utility model is further illustrated by combining with the drawings and examples:

[0021] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0022] Figure 2 It is the structure schematic diagram of the second fixed mounting seat of the utility model;

[0023] Figure 3 It is the structure schematic diagram of the first sliding rod sleeve of the utility model;

[0024] Figure 4 It is the structure schematic diagram of the first sliding rod sleeve of the utility model;Figure 3 Enlarged view of structure at middle A.

[0025] Fig. 1, bearing platform; 2, push block groove; 3, first reset spring; 4, push block; 5, fixed limiting block; 6, first sliding rod; 7, second sliding rod; 8, first sliding rod sleeve; 9, limiting block groove; 10, second sliding rod sleeve; 11, fixed bolt; 12, fixed bolt groove; 13, fixed support; 14, first fixed mounting seat; 15, friction support plate; 16, first limiting sliding block groove; 17, second rotating mounting seat; 18, second fixed mounting seat; 19, fixed limiting block groove; 20, limiting sliding block; 21, limiting block; 22, second reset spring; 23, second limiting sliding block groove. DETAILED DESCRIPTION

[0026] This part will describe the specific embodiments of the utility model in detail, the preferred embodiments of the utility model are shown in the drawings, the role of the drawings is to supplement the description of the text part with graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0027] In the description of the utility model, it is understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right and the like, is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as a limitation on the utility model.

[0028] In the description of the utility model, greater than, less than, more than and the like are understood as not including the number, and above, below and the like are understood as including the number. If the first and the second are described, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the sequence of indicated technical features.

[0029] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installing and connecting should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the utility model according to the specific content of the technical scheme.

[0030] Please refer to Figures 1-4 The utility model provides a kind of technical scheme: a maintenance frame for the maintenance of elevator convenient to adjust, including bearing platform 1;

[0031] Bearing platform 1 is provided with two support devices and four support devices;

[0032] The supporting device comprises a second fixed mounting seat 18, a second rotating mounting seat 17 and a fixed limiting block 5, the outer walls of both sides of the bearing platform 1 are provided with fixed limiting block grooves 19, the upper end outer walls of the second fixed mounting seat 18 are respectively in sliding connection with the interiors of the corresponding fixed limiting block grooves 19, the outer wall of the fixed limiting block 5 is in sliding connection with the interior of the corresponding fixed limiting block groove 19, the upper end outer wall of the second rotating mounting seat 17 is in rotating connection with the lower end interior of the second fixed mounting seat 18, the outer wall of the protruding block at one end of the fixed limiting block 5 close to the second fixed mounting seat 18 is in sliding connection with the interior of the groove provided in one side outer wall of the second fixed mounting seat 18, the outer wall of one end of the second rotating mounting seat 17 away from the second fixed mounting seat 18 is fixedly connected with a second sliding rod 7, the outer wall of one end of the second sliding rod 7 away from the second rotating mounting seat 17 is provided with a groove in the interior of which a limiting block 21 is in sliding connection, the outer wall of the fixed limiting block 5 is provided with two push block grooves 2, the interiors of the two push block grooves 2 are both in sliding connection with push blocks 4, the upper surface of the first sliding rod 6 is provided with two first limiting sliding block grooves 16, the interiors of the two first limiting sliding block grooves 16 are both in sliding connection with limiting sliding blocks 20, the interiors of the two push block grooves 2 are respectively communicated with the interiors of the corresponding first limiting sliding block grooves 16, one end of each of the two push blocks 4 close to the limiting sliding blocks 20 is slidingly extended into the interior of the first limiting sliding block groove 16 and is fixedly connected with the outer wall of the corresponding limiting sliding block 20, the interiors of the two push block grooves 2 are both provided with two first return springs 3, the two ends of the four first return springs 3 are respectively fixedly connected with one side outer wall of the corresponding push block 4 and lower end inner wall of the push block groove 2, the outer wall of the second sliding rod 7 is slidingly sleeved with a second sliding rod sleeve 10, the outer wall of the second sliding rod sleeve 10 is provided with a plurality of limiting block grooves 9, the outer wall of one end of the limiting block 21 away from the second sliding rod 7 is in contact with the inner wall of the corresponding limiting block groove 9, the lower end outer wall of the second sliding rod 7 is provided with a groove in the interior of which a second return spring 22 is arranged, the two ends of the second return spring 22 are respectively fixedly connected with one end outer wall of the corresponding limiting block 21 and inner wall of the groove provided in the lower end outer wall of the second sliding rod 7, the upper end inner wall of the fixed limiting block groove 19 is provided with two second limiting sliding block grooves 23, one end of each of the two limiting sliding blocks 20 close to the second limiting sliding block groove 23 is slidingly extended into the interior of the fixed limiting block groove 19 and is in contact with the inner wall of the corresponding second limiting sliding block groove 23, the lower end outer wall of the second sliding rod sleeve 10 is fixedly connected with a fixed support 13, the fixed support 13 is in the shape of “U”, the outer wall of one end of the fixed support 13 away from the second sliding rod sleeve 10 is fixedly connected with a first fixed mounting seat 14, the interior of one end of the first fixed mounting seat 14 away from the fixed support 13 is rotatably connected with a friction supporting plate 15, and two supporting devices are respectively arranged on both sides of the bearing platform 1.

[0033] The support device comprises a first sliding rod 6 and a first sliding rod sleeve 8. The upper outer wall of the first sliding rod 6 is fixedly connected with the lower surface of the bearing platform 1. The upper outer wall of the first sliding rod sleeve 8 is provided with a groove inside which is in sliding connection with the outer wall of the first sliding rod 6. A plurality of fixed bolt grooves 12 are formed in the outer wall of one side of the first sliding rod 6. The upper outer wall of the first sliding rod sleeve 8 is threadedly connected with a fixed bolt 11. The end of the fixed bolt 11 close to the fixed bolt groove 12 is threadedly extended into the groove inside the upper outer wall of the first sliding rod sleeve 8 and is in threaded connection with the inside of the corresponding fixed bolt groove 12. Four support devices are arranged at the four corners of the lower surface of the bearing platform 1.

[0034] Further, in use of the device, the device is first moved to a designated position by the universal wheels at the lower end of the first sliding rod sleeve 8 through starting by connecting an external power source. Then, the fixed bolt 11 is rotated to make the other end of the fixed bolt 11 out of contact with the inside of the fixed bolt groove 12. Then, the bearing platform 1 is pulled upward to move the first sliding rod 6 upward and make the other end of the first sliding rod 6 slide out of the inside of the first sliding rod sleeve 8. After the height of the bearing platform 1 is adjusted, the fixed bolt 11 is rotated to make the other end of the fixed bolt 11 enter the inside of the corresponding fixed bolt groove 12 to limit the first sliding rod 6. Then, the limiting block 21 is pressed to move in the direction of the second sliding rod 7 and simultaneously make the second reset spring 22 contract. At the same time, the movement of the limiting block 21 makes the other end of the limiting block 21 out of contact with the inside of the limiting block groove 9. Then, the second sliding rod sleeve 10 can be pulled downward to make the second sliding rod 7 and the second sliding rod sleeve 10 as a whole make a turning movement through the cooperation of the second fixed mounting seat 18 and the second sliding rod 7. In this way, the outer wall of the friction support plate 15 is in contact with the inner wall of the two sides of the car according to the adjustment of the two sides of the car. After the limiting block 21 is loosened, the limiting block 21 is reset into the inside of the corresponding limiting block groove 9 through the action force of the second reset spring 22 on the limiting block 21 and simultaneously limits the length of the second sliding rod sleeve 10. In this way, the outer wall of the friction support plate 15 is in contact with the inner wall of the two sides of the car at the same time that the second sliding rod 7 and the second sliding rod sleeve 10 support the two sides of the car, which improves the stability of the device. Then, when it is needed to disassemble the support device, the push block 4 is pushed downward to move the limiting sliding block 20 downward and simultaneously make the first reset spring 3 contract. Then, the limiting sliding block 20 is moved downward to make the other end of the limiting sliding block 20 out of contact with the inside of the second limiting sliding block groove 23. Then, after the fixed limiting block 5 is pulled out of the inside of the fixed limiting block groove 19, the second fixed mounting seat 18 can be pulled to take the support device off the bearing platform 1.

[0035] The supporting device is taken off from the bearing platform 1 by pulling the second fixed mounting seat 18 after the first reset spring 3 is retracted by pulling the push block 4 to move down and driving the limiting slider 20 to move down, then the other end of the limiting slider 20 is out of contact with the inside of the second limiting slider slot 23, then the fixed limiting block 5 is taken out from the inside of the fixed limiting block slot 19, and the supporting device is taken off from the bearing platform 1, so that the supporting device is simple and fast to disassemble, the staff does not need to use special tools to disassemble it, the maintenance and overhaul efficiency of the supporting device is effectively improved, the workload of the staff is reduced, the other end of the fixed bolt 11 is out of contact with the inside of the fixed bolt slot 12 by rotating the fixed bolt 11, then the bearing platform 1 is pulled up to move the first sliding rod 6 to move up at the same time, and the other end of the first sliding rod 6 is out of the inside of the first sliding rod sleeve 8, then the height of the bearing platform 1 is adjusted, the fixed bolt 11 is rotated to make the other end of the fixed bolt 12 into the inside of the corresponding fixed bolt slot 12 to limit the first sliding rod 6, so that the height of the bearing platform 1 is adjusted, the practicability and flexibility of the equipment are effectively improved, and the work efficiency of the staff is improved.

[0036] Working principle: first through the first sliding rod sleeve 8 lower end universal wheel moves the device to the designated position, then twist fixed bolt 11 rotation makes its other end outer wall and fixed bolt groove 12 inside contact, then pull the bearing platform 1 up and move the first sliding rod 6 up and make its other end from the inside of the first sliding rod sleeve 8 slip, then adjust the height of the bearing platform 1, twist fixed bolt 11 rotation makes its other end into corresponding fixed bolt groove 12 inside limit the first sliding rod 6, then press the limit block 21 to the second sliding rod 7 direction moves while driving the second reset spring 22 shrink, while the limit block 21 moves and makes its other end outer wall and limit block groove 9 inside contact, then can pull the second sliding rod sleeve 10 down and move while through the second fixed mounting 18 and second sliding rod 7 cooperation makes the second sliding rod 7 and second sliding rod sleeve 10 overall do overturning movement, so according to the adjustment of the two sides of the car makes the outer wall of the friction support plate 15 and the inner wall of the two sides of the car contact, then loosen the limit block 21, the limit block 21 is reset into the corresponding limit block groove 9 inside through the second reset spring 22 on its generated force while limiting the length of the second sliding rod sleeve 10, so through the friction support plate 15 and the inner wall of the two sides of the car contact while the second sliding rod 7 and the second sliding rod sleeve 10 support it, improve the stability of the device, then when the support device needs to be disassembled, push the push block 4 down and move the limit block 20 down and move while driving the first reset spring 3 shrink, then through the limit block 20 down and move makes its other end outer wall and second limit block groove 23 inside contact, then pull the fixed limit block 5 from the inside of the fixed limit block groove 19, pull the second fixed mounting 18 can be taken off from the bearing platform 1.

[0037] The above embodiment of the present application is described in detail in combination with the drawings, but the present application is not limited to the above embodiment, and various changes can be made within the knowledge range of ordinary skilled in the art without departing from the purpose of the present application.

Claims

1. An easily adjustable elevator maintenance rack, comprising a support platform (1), characterized in that: The bearing platform (1) is equipped with two support devices and four supporting devices; The support device includes a second fixed mounting base (18), a second rotating mounting base (17), and a fixed limiting block (5). Fixed limiting block grooves (19) are provided on both sides of the outer wall of the bearing platform (1). The upper fixed mounting base outer wall of the second fixed mounting base (18) is slidably connected to the interior of the corresponding fixed limiting block groove (19). The outer wall of the fixed limiting block (5) is slidably connected to the interior of the corresponding fixed limiting block groove (19). The upper outer wall of the second rotating mounting base (17) is rotatably connected to the interior of the lower end of the second fixed mounting base (18). A second sliding rod (7) is fixedly connected to the outer wall of the second rotating mounting base (17) away from the second fixed mounting base (18). A limiting block (21) is slidably connected to the outer wall of the second sliding rod (7) away from the second rotating mounting base (17). Two push block grooves (2) are provided on the outer wall of the fixed limiting block (5). Push blocks (4) are slidably connected to the interior of both push block grooves (2). The upper surface of the first sliding rod (6) has two first limiting slider grooves (16), and each of the two first limiting slider grooves (16) is slidably connected to a limiting slider (20). Each of the two push block grooves (2) is provided with two first return springs (3). The outer wall of the second sliding rod (7) is slidably sleeved with a second sliding rod sleeve (10). The outer wall of the second sliding rod sleeve (10) has multiple limiting block grooves (9). The lower end of the outer wall of the second sliding rod (7) has a groove in which a second return spring is provided. (22) Two second limiting slider grooves (23) are opened on the upper inner wall of the fixed limiting block groove (19). A fixed bracket (13) is fixedly connected to the lower outer wall of the second sliding rod sleeve (10). A first fixed mounting seat (14) is fixedly connected to the outer wall of the fixed bracket (13) away from the second sliding rod sleeve (10). A friction support plate (15) is rotatably connected to the inner end of the first fixed mounting seat (14) away from the fixed bracket (13). The two support devices are respectively set on both sides of the bearing platform (1).

2. The elevator maintenance rack that is easy to adjust according to claim 1, characterized in that: The outer wall of the protrusion of the fixed limiting block (5) near the second fixed mounting base (18) is slidably connected to the groove of the outer wall of the second fixed mounting base (18) on one side. The interior of the two push block grooves (2) is respectively connected to the interior of the corresponding first limiting slider groove (16). Among them, the ends of the two push blocks (4) near the limiting slider (20) slide into the interior of the first limiting slider groove (16) and are fixedly connected to the outer wall of the corresponding limiting slider (20).

3. The elevator maintenance rack that is easy to adjust according to claim 1, characterized in that: The two ends of the four first reset springs (3) are respectively fixedly connected to the outer wall of one side of the corresponding push block (4) and the inner wall of the lower end of the push block groove (2). The outer wall of the limit block (21) away from the second sliding rod (7) is in contact with the inner wall of the corresponding limit block groove (9). The two ends of the second reset spring (22) are respectively fixedly connected to the inner wall of the groove opened on the outer wall of one end of the corresponding limit block (21) and the outer wall of the lower end of the second sliding rod (7). Among them, the two limiting sliders (20) near the end of the second limiting slider groove (23) slide into the interior of the fixed limiting block groove (19) and respectively contact the inner wall of the corresponding second limiting slider groove (23), and the fixed bracket (13) is U-shaped.

4. The elevator maintenance rack that is easy to adjust according to claim 1, characterized in that: The support device includes a first sliding rod (6) and a first sliding rod sleeve (8); The upper outer wall of the first sliding rod (6) is fixedly connected to the lower surface of the bearing platform (1).

5. The elevator maintenance rack that is easy to adjust according to claim 4, characterized in that: The upper outer wall of the first sliding rod sleeve (8) has a groove that is slidably connected to the outer wall of the first sliding rod (6); Among them, the outer wall of one side of the first sliding rod (6) is provided with multiple fixing bolt grooves (12).

6. The elevator maintenance rack that is easy to adjust according to claim 4, characterized in that: The upper outer wall of the first sliding rod sleeve (8) is threaded with a fixing bolt (11). The end of the fixing bolt (11) near the fixing bolt groove (12) extends threadedly into the groove on the upper outer wall of the first sliding rod sleeve (8) and is threadedly connected to the corresponding fixing bolt groove (12). The four support devices are respectively set at the four corners of the lower surface of the bearing platform (1).

Citation Information

Patent Citations

  • Maintenance frame convenient to adjust and used for elevator maintenance

    CN221318809U