Maintenance lifting device

Abstract

The utility model relates to the technical field of mechanical maintenance equipment, and discloses a maintenance lifting device which comprises a base, a plurality of telescopic rods are fixedly connected to the top of the base, bearing plates are fixedly connected to the tops of the telescopic rods, and self-locking limiting mechanisms are arranged on the left side and the right side of the top of the base. A self-locking limiting mechanism is fixedly connected to the bottom of the base and used for locking the lifting platform to prevent the lifting platform from sliding down, moving mechanisms are fixedly connected to the four corners of the bottom of the base and used for facilitating use of the moving device, a buffering mechanism is arranged between every two adjacent bearing plates, and rotating mechanisms are arranged at the four corners of the top of the base. According to the utility model, the self-locking limiting mechanism is arranged, and a mechanical insertion matching structure between the push block and the limiting column is utilized, so that automatic locking on a physical structure is realized, stable locking can still be realized under an emergency power-off extreme working condition, and the safety guarantee capability in a maintenance operation process is remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of mechanical repair equipment technology, and in particular to a repair lifting device. Background Technology

[0002] Maintenance lifting devices are mechanisms used to vertically lift and adjust equipment, components, and workpieces. They are used in maintenance operations where the operating height needs to be adjusted. By setting up lifting components, the equipment to be inspected is lifted to a suitable working position for maintenance, improving operational convenience and safety.

[0003] In current maintenance work, the height of equipment needs to be adjusted according to the operator's posture. Traditional fixed platforms cannot be adjusted flexibly, resulting in operator fatigue, numerous blind spots, and limitations on both efficiency and safety. Maintenance lifting devices can achieve precise lifting and lowering through a controllable structure, adapting to different work scenarios, and are in high demand in the fields of industrial equipment repair, vehicle maintenance, and medical device debugging.

[0004] In maintenance lifting devices, a motor-driven lead screw and hydraulic cylinder structure are used as the lifting core. However, the electric platform is at risk of accidental slippage in the event of power failure or power outage, and requires continuous power supply to maintain the height. The lifting state cannot achieve self-holding. Existing technologies use electromagnetic braking and hydraulic locking valves to maintain height stability, which rely on electronic control and lack mechanical redundancy protection. In emergency situations, there is a safety hazard of locking failure. The response speed is heavily dependent on electronic components, and the structural safety and reliability under extreme scenarios cannot be guaranteed. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a maintenance lifting device, which aims to improve the problems in the prior art where electric platforms may accidentally slide down in the event of power failure or power outage, and the lifting state cannot be maintained.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a maintenance lifting device, comprising a base, a plurality of telescopic rods fixedly connected to the top of the base, a load-bearing plate fixedly connected to the top of each of the plurality of telescopic rods, a self-locking limiting mechanism provided on the left and right sides of the top of the base, the self-locking limiting mechanism being used to lock the lifting platform to prevent it from sliding down, a moving mechanism fixedly connected to each of the four corners of the bottom of the base, the moving mechanism being used for convenient use of the moving device, a buffer mechanism being provided between adjacent load-bearing plates, a rotating mechanism being provided at each of the four corners of the top of the base, a power mechanism being provided on the opposite side of each of the plurality of rotating mechanisms, and a lifting mechanism being provided between adjacent rotating mechanisms;

[0007] The self-locking limiting mechanism includes two push blocks. The bottom of each push block is fixedly connected to the top left and right sides of the base. Each push block is fixedly connected to a clamp. The inner sides of each clamp are fixedly connected to a limiting post. The top of the base has two slide rails. The left and right sides of the load-bearing plate are provided with multiple limiting holes. Each push block has a pushing component on the side that is far apart from the other side.

[0008] As a further description of the above technical solution:

[0009] The moving mechanism includes multiple connecting truncated cones, the tops of which are fixedly connected to the four corners of the bottom of the base, the bottoms of which are fixedly connected to a connecting shaft, brake pads fixedly connected to the opposite sides of the connecting shafts, and rollers rotatably connected to the bottoms of the connecting shafts.

[0010] As a further description of the above technical solution:

[0011] The pushing assembly includes two pushing rings, which are respectively fixedly connected to the opposite sides of two pushing blocks, and springs are fixedly connected to the bottom of each of the two pushing blocks.

[0012] As a further description of the above technical solution:

[0013] The power mechanism includes multiple support platforms, the bottoms of which are fixedly connected to the four corners of the top of the base. Each of the multiple support platforms is fixedly connected to a motor, and each of the multiple motors is rotatably connected to a gear.

[0014] As a further description of the above technical solution:

[0015] The rotating mechanism includes multiple vertical guide posts, the bottoms of which are fixedly connected to the top of the base, and racks are fixedly connected inside each of the multiple vertical guide posts.

[0016] As a further description of the above technical solution:

[0017] The lifting mechanism includes multiple lifting platforms, which are fixedly connected to the front and rear sides of two load-bearing plates respectively. Each of the multiple lifting platforms is equipped with a gear II, and each of the multiple gear IIs is equipped with a lifting component between adjacent gears.

[0018] As a further description of the above technical solution:

[0019] The lifting assembly includes multiple slide rods, which are fixedly connected to the front and rear sides of multiple lifting platforms, and two vertical slide grooves are formed between each adjacent slide rod.

[0020] As a further description of the above technical solution:

[0021] The buffer mechanism includes a maintenance window sill, which is fixedly connected to the left and right sides of two adjacent load-bearing plates. Multiple shock-absorbing particles are fixedly connected to the top of the maintenance window sill, and a buffer pad is fixedly connected to the top of the multiple shock-absorbing particles.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, by setting a self-locking limiting mechanism, and utilizing the mechanical plug-in cooperation structure between the push block and the limiting column, after the lifting platform rises to the specified height, the limiting column inserts into the limiting hole of the load-bearing plate to achieve automatic locking in the physical structure. The platform height can be maintained without continuous power supply, effectively preventing accidental slippage in the event of power failure or emergencies. Even in the extreme working condition of emergency power failure, the lifting platform can still be stably locked, significantly improving the safety guarantee capability during maintenance operations.

[0024] 2. In this utility model, by setting up a moving mechanism, the multi-directional moving capability of the maintenance lifting device is realized by using the combination structure of the connecting frustum and the roller, which facilitates flexible transfer between different work areas, improves the mobility and applicability of the equipment. A connecting shaft and brake pad structure are set under the roller, which can achieve instant braking by contacting the ground with the brake pad after the movement is completed, improves the stability of the equipment when it stops, and improves the safety and efficiency of the maintenance device in complex working environments. Attached Figure Description

[0025] Figure 1 This is a perspective view of a maintenance lifting device proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the lifting component in a maintenance lifting device proposed in this utility model;

[0027] Figure 3 This is a schematic diagram of the moving mechanism in a maintenance lifting device proposed in this utility model;

[0028] Figure 4 This is a schematic diagram of the self-locking limiting mechanism in a maintenance lifting device proposed in this utility model;

[0029] Figure 5 This is an exploded view of the buffer mechanism in a maintenance lifting device proposed in this utility model;

[0030] Figure 6 This is a schematic diagram of the lifting mechanism in a maintenance lifting device proposed in this utility model.

[0031] Legend:

[0032] 1. Base; 2. Telescopic rod; 3. Load-bearing plate; 4. Self-locking limit mechanism; 401. Push block; 402. Clamp; 403. Limiting post; 404. Slide rail; 405. Limiting hole; 406. Pushing assembly; 4061. Pushing ring; 4062. Spring; 5. Moving mechanism; 501. Connecting frustum; 502. Connecting shaft; 503. Brake pad; 504. Roller; 6. Power mechanism; 601. Support platform; 602. Motor; 603. Gear one; 7. Rotating mechanism; 701. Vertical guide column; 702. Rack; 8. Lifting mechanism; 801. Lifting platform; 802. Gear two; 803. Lifting assembly; 8031. Slide rod; 8032. Vertical slide groove; 9. Buffer mechanism; 901. Maintenance window sill; 902. Shock-absorbing particles; 903. Buffer pad. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Reference Figure 1 , Figure 2 and Figure 5 The present invention provides an embodiment of a maintenance lifting device, comprising a base 1, a plurality of telescopic rods 2 fixedly connected to the top of the base 1, a load-bearing plate 3 fixedly connected to the top of each of the plurality of telescopic rods 2, a self-locking limiting mechanism 4 provided on the left and right sides of the top of the base 1, the self-locking limiting mechanism 4 being used to lock the lifting platform to prevent it from sliding down, a moving mechanism 5 fixedly connected to each of the four corners of the bottom of the base 1, the moving mechanism 5 being used to move the device for convenient use, a buffer mechanism 9 being provided between adjacent load-bearing plates 3, a rotating mechanism 7 being provided at each of the four corners of the top of the base 1, a power mechanism 6 being provided on the side of the plurality of rotating mechanisms 7 that is far apart from each other, and a lifting mechanism 8 being provided between adjacent rotating mechanisms 7.

[0035] The self-locking limiting mechanism 4 includes two push blocks 401. The bottom of each push block 401 is fixedly connected to the top left and right sides of the base 1, serving as a lateral pushing structure for the locking component. Each push block 401 is fixedly connected to a clip 402, which forms a cooperating positioning mechanism with the limiting hole 405. The inner sides of each clip 402 are fixedly connected to a limiting post 403, which is inserted into the limiting hole 405 to form a self-locking support structure. The top of the base 1 has two slide rails 404, which guide the push blocks 401 to move along a specified path. The left and right sides of the load-bearing plate 3 are provided with multiple limiting holes 405, which cooperate with the limiting posts 403 to form locking points. Each push block 401 is provided with a pushing component 406 on the opposite side, which triggers the push block 401 to move to achieve locking and releasing operations.

[0036] Specifically, a maintenance lifting device includes a base 1, with multiple telescopic rods 2 fixedly connected to the top of the base 1, and load-bearing plates 3 fixedly connected to the top of each of the multiple telescopic rods 2. Self-locking limiting mechanisms 4 are provided on the left and right sides of the top of the base 1, and moving mechanisms 5 are fixedly connected to the four corners of the bottom of the base 1. Buffer mechanisms 9 are provided between adjacent load-bearing plates 3, and rotating mechanisms 7 are provided at the four corners of the top of the base 1. Power mechanisms 6 are provided on the opposite sides of the multiple rotating mechanisms 7, and lifting mechanisms 8 are provided between adjacent rotating mechanisms 7. These are used to achieve vertical lifting and stable locking of the entire device, ensuring safety and operability during maintenance operations.

[0037] The self-locking limiting mechanism 4 includes two push blocks 401. The bottom of each push block 401 is fixedly connected to the top left and right sides of the base 1 to control the left and right pushing of the clamps 402. Each push block 401 is fixedly connected to a clamp 402. The inner side of each clamp 402 is fixedly connected to a limiting post 403. The limiting post 403 can be inserted into the limiting hole 405 on the load-bearing plate 3 to achieve mechanical locking. The top of the base 1 has two slide rails 404 to guide the push blocks 401 to slide horizontally. The left and right sides of the load-bearing plate 3 are provided with multiple limiting holes 405 to cooperate with the limiting posts 403 to lock the position of the load-bearing plate 3. Each push block 401 is provided with a pushing component 406 on the side away from each other to trigger the push block 401 to move and achieve locking and releasing operations.

[0038] Reference Figure 1 and Figure 3The moving mechanism 5 includes multiple connecting frustums 501. The tops of the multiple connecting frustums 501 are fixedly connected to the four corners of the bottom of the base 1, serving as the connecting base between the moving module and the base 1. The bottoms of the multiple connecting frustums 501 are all fixedly connected to connecting shafts 502, which are used to drive the connecting rollers 504 structure. Brake pads 503 are fixedly connected to the opposite sides of the multiple connecting shafts 502, which are used to brake and hold the device when it stops. The bottoms of the multiple connecting shafts 502 are rotatably connected to rollers 504, which are used to support and enable the device to move smoothly.

[0039] Specifically, the moving mechanism 5 includes multiple connecting truncated cones 501. The tops of the multiple connecting truncated cones 501 are fixedly connected to the four corners of the bottom of the base 1, which are used to connect the base 1 and the bottom rollers 504. The bottom of each of the multiple connecting truncated cones 501 is fixedly connected to a connecting shaft 502. A brake pad 503 is fixedly connected to the opposite side of the connecting shaft 502. The brake pad 503 is used to perform braking action in the working state to keep the device stable. The bottom of each of the multiple connecting shafts 502 is rotatably connected to a roller 504. The roller 504 can realize the movement and positioning of the device in the field.

[0040] Reference Figure 1 , Figure 2 and Figure 4 The pushing component 406 includes two pushing rings 4061, which are fixedly connected to the opposite sides of two push blocks 401, respectively, and are used as a manual control component to push the push blocks 401 to move. Springs 4062 are fixedly connected to the bottom of each push block 401 to provide a restoring force to reset the push blocks 401. The power mechanism 6 includes multiple support platforms 601, the bottoms of which are fixedly connected to the four corners of the top of the base 1, for mounting the motor 602 and providing structural support. The support includes multiple support platforms 601, each with a motor 602 fixedly connected to its top for outputting rotational power to drive the lifting device. Each motor 602 has a gear 603 rotatably connected to its front side for meshing with a rack 702 to achieve drive. The rotating mechanism 7 includes multiple vertical guide columns 701, each with its bottom fixedly connected to the top of the base 1 for serving as a vertical guide structure for lifting motion. Each vertical guide column 701 has a rack 702 fixedly connected inside for cooperating with the gear 603 to achieve power transmission.

[0041] Specifically, the pushing component 406 includes two pushing pull rings 4061, which are fixedly connected to each other on the opposite side of the two push blocks 401, for manually pulling the push blocks 401. The bottom of each of the two push blocks 401 is fixedly connected to a spring 4062, which is used to push the push blocks 401 to automatically reset after the operation is released.

[0042] The power mechanism 6 includes multiple support platforms 601, the bottoms of which are fixedly connected to the four corners of the top of the base 1. Each support platform 601 is fixedly connected to a motor 602 for providing power output. Each motor 602 is rotatably connected to a gear 603 on its front side. The gear 603 is used to mesh with the rack 702 in the vertical guide column 701. The rotating mechanism 7 includes multiple vertical guide columns 701, the bottoms of which are fixedly connected to the top of the base 1. Each vertical guide column 701 is fixedly connected to a rack 702 inside, forming a vertical lifting guide and transmission path.

[0043] Reference Figure 1 , Figure 5 and Figure 6 The lifting mechanism 8 includes multiple lifting platforms 801, which are fixedly connected to the front and rear sides of two load-bearing plates 3 to connect the two load-bearing plates 3 and form a lifting support surface. Each lifting platform 801 has a gear 802 inside, which meshes with the lifting assembly to control the lifting action. Each gear 802 has a lifting assembly 803 between adjacent gears. The lifting assembly 803 includes multiple slide rods 8031, which are fixedly connected to the front and rear sides of the lifting platforms 801 to guide the load-bearing plates 3. The lifting mechanism includes two vertical grooves 8032 between adjacent sliding rods 8031 ​​to limit the movement path of the sliding rods 8031 ​​and prevent deviation; the buffer mechanism 9 includes a maintenance window 901, which is fixedly connected to the left and right sides between two adjacent load-bearing plates 3 to set up a maintenance passage for personnel operation; multiple shock-absorbing particles 902 are fixedly connected to the top of the maintenance window 901 to absorb operating vibration and reduce noise; and a buffer pad 903 is fixedly connected to the top of the multiple shock-absorbing particles 902 to improve the comfort of personnel operation and protect the equipment surface.

[0044] Specifically, the lifting mechanism 8 includes multiple lifting platforms 801. The adjacent lifting platforms 801 are fixedly connected to the front and rear sides of two load-bearing plates 3 to connect the upper and lower structures and form a lifting transmission path. The lifting platform 801 is equipped with a gear 802. The adjacent gears 802 are equipped with a lifting component 803. The lifting component 803 includes multiple slide rods 8031. The adjacent slide rods 8031 ​​are fixedly connected to the front and rear sides of the lifting platform 801 to limit the sliding trajectory. Two vertical slide grooves 8032 are opened between the adjacent slide rods 8031 ​​to guide and prevent swaying during the lifting process.

[0045] The buffer mechanism 9 includes a maintenance window sill 901, which is fixedly connected to the left and right sides of two adjacent load-bearing plates 3. Multiple shock-absorbing particles 902 are fixedly connected to the top, and a buffer pad 903 is fixedly connected to the top of the shock-absorbing particles 902. This mechanism is used to improve the stability and safety of maintenance operations, and has a buffering and shock-absorbing effect, ensuring the overall stability and comfort of the maintenance platform during load-bearing and lifting processes.

[0046] Working principle: The pushing device moves via the rollers 504 of the moving mechanism 5. The connecting frustum 501 in the moving mechanism 5 is fixed at the bottom corner of the base 1. The connecting shaft 502 drives the rollers 504. When stopping, the brake pads 503 are applied to brake. After the device moves to the designated position, the pushing ring 4061 of the self-locking limit mechanism 4 is operated. The pushing ring 4061 is fixed to the outside of the push block 401, causing the push block 401 to slide along the slide rail 404 at the top of the base 1. The clamp 402 on the inner side of the push block 401 moves accordingly, causing the limit post 4 to move. 03 Insert into the limiting holes 405 on the left and right sides of the load-bearing plate 3 to achieve mechanical locking. At this time, the spring 4062 at the bottom of the push block 401 is in a compressed state, providing elastic force for subsequent reset. After the positioning and locking are completed, start the motor 602 of the power mechanism 6. The motor 602 is fixed on the top of the support platform 601. The gear 603 on the front side of the motor 602 meshes with the rack 702 in the vertical guide column 701 of the rotating mechanism 7, driving the rack 702 in the vertical guide column 701 to make vertical movement, thereby driving the lifting platform 801 of the lifting mechanism 8.

[0047] The lifting platform 801 is connected to the front and rear sides of the two load-bearing plates 3. The internal gear 802 cooperates with the lifting assembly 803. The slide rod 8031 ​​of the lifting assembly 803 is fixed to the front and rear sides of the lifting platform 801. The vertical slide groove 8032 on the slide rod 8031 ​​limits the movement trajectory, so that the load-bearing plate 3 is vertically lifted along the direction of the telescopic rod 2. The telescopic rod 2 is fixed to the top of the base 1 and provides support and guidance for the load-bearing plate 3. During the lifting of the load-bearing plate 3, the maintenance window 901 of the buffer mechanism 9 is connected between the two load-bearing plates 3. The shock-absorbing particles 902 and the buffer pad 903 on its top can absorb the vibration during the lifting process, while providing a comfortable operating surface for maintenance personnel. Finally, the object to be repaired is lifted to a suitable maintenance height and kept stable by the self-locking limit mechanism 4, providing a safe and convenient support platform for maintenance work.

[0048] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A maintenance lifting device, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to multiple telescopic rods (2), and the top of each of the multiple telescopic rods (2) is fixedly connected to a load-bearing plate (3). The top left and right sides of the base (1) are provided with self-locking limiting mechanisms (4), which are used to lock the lifting platform to prevent it from sliding down. The bottom four corners of the base (1) are fixedly connected to moving mechanisms (5), which are used to facilitate the use of the moving device. The adjacent two load-bearing plates (3) are provided with buffer mechanisms (9). The top four corners of the base (1) are provided with rotating mechanisms (7). The opposite sides of the multiple rotating mechanisms (7) are provided with power mechanisms (6). The adjacent multiple rotating mechanisms (7) are provided with lifting mechanisms (8). The self-locking limiting mechanism (4) includes two push blocks (401). The bottom of the two push blocks (401) is fixedly connected to the top left and right sides of the base (1). The two push blocks (401) are fixedly connected to each other with a buckle (402). The inner side of the buckle (402) is fixedly connected with a limiting post (403). The top of the base (1) has two slide rails (404). The left and right sides of the load-bearing plate (3) are provided with multiple limiting holes (405). The two push blocks (401) are provided with a pushing component (406) on the side that is far apart from each other.

2. The maintenance lifting device according to claim 1, characterized in that: The moving mechanism (5) includes multiple connecting truncated cones (501), the tops of which are fixedly connected to the four corners of the bottom of the base (1), the bottoms of which are fixedly connected to a connecting shaft (502), a brake pad (503) is fixedly connected to the opposite side of the connecting shaft (502), and a roller (504) is rotatably connected to the bottom of the connecting shaft (502).

3. The maintenance lifting device according to claim 1, characterized in that: The pushing assembly (406) includes two pushing rings (4061), which are fixedly connected to each other on opposite sides of the two push blocks (401), and springs (4062) are fixedly connected to the bottom of each of the two push blocks (401).

4. The maintenance lifting device according to claim 1, characterized in that: The power mechanism (6) includes multiple support platforms (601), the bottom of the multiple support platforms (601) is fixedly connected to the four corners of the top of the base (1), the top of the multiple support platforms (601) is fixedly connected to a motor (602), and the front side of the multiple motors (602) is rotatably connected to a gear (603).

5. A maintenance lifting device according to claim 4, characterized in that: The rotating mechanism (7) includes multiple vertical guide posts (701), the bottom of which is fixedly connected to the top of the base (1), and racks (702) are fixedly connected inside each of the multiple vertical guide posts (701).

6. A maintenance lifting device according to claim 1, characterized in that: The lifting mechanism (8) includes multiple lifting platforms (801), which are fixedly connected to the front and rear sides of two load-bearing plates (3) respectively. Gear 2 (802) is provided inside each of the multiple lifting platforms (801), and lifting components (803) are provided between each of the multiple gear 2 (802).

7. A maintenance lifting device according to claim 6, characterized in that: The lifting assembly (803) includes a plurality of slide rods (8031), which are fixedly connected to the front and rear sides of a plurality of lifting platforms (801) respectively. Two vertical slide grooves (8032) are provided between each adjacent slide rod (8031).

8. A maintenance lifting device according to claim 1, characterized in that: The buffer mechanism (9) includes a maintenance window sill (901), which is fixedly connected to the adjacent two load-bearing plates (3) on both the left and right sides. Multiple shock-absorbing particles (902) are fixedly connected to the top of the maintenance window sill (901), and a buffer pad (903) is fixedly connected to the top of the multiple shock-absorbing particles (902).

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