Tray elevator with protective structure
By introducing protection and mitigation mechanisms into the pallet lift, using rocker arms and threaded rods to adjust the baffle position, and combining springs and rotating rods for cushioning, the problem of preventing pallet falls during mechanical failures has been solved, achieving safe and stable pallet transportation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI GAOHE INTELLIGENT EQUIPMENT CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-05-12
AI Technical Summary
Existing pallet lifts lack fall protection in the event of mechanical failure, which can cause pallets to fall suddenly, potentially injuring people or equipment below.
A pallet lifting machine with protection and deceleration mechanisms was designed, including a protection mechanism and a deceleration mechanism. The position of the baffle is adjusted by a rocker-driven bidirectional threaded rod and threaded block, combined with a buffer mechanism of spring and rotating rod to achieve safe buffering of the pallet.
Effectively prevents pallets from falling, ensures the normal operation of the pallet lift, and protects the safety of personnel and equipment below.
Smart Images

Figure CN224226568U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pallet lifting machine technology, and in particular to a pallet lifting machine with a protective structure. Background Technology
[0002] A pallet lift is an automated mechanical device used for the vertical transport of palletized goods. It mainly consists of a frame, transmission system, lifting platform, and pallet positioning device. Its working principle involves a motor-driven transmission mechanism that moves the lifting platform up and down along guide rails, thereby transferring palletized goods between different floors or heights. It features high lifting efficiency, strong load-bearing capacity, and stable and reliable operation, and is widely used in warehousing logistics, factory production lines, and distribution centers. It effectively reduces manual handling costs and improves cargo turnover efficiency, and is particularly suitable for automated warehousing systems that require frequent vertical transport of palletized goods. The pallet lift uses a motor-driven transmission system to move the lifting platform vertically along fixed guide rails. When palletized goods need to be transported, the pallet is placed on the lifting platform. The control system starts the motor according to preset instructions, and the transmission system transmits power to the lifting platform, causing it to rise or fall smoothly to the designated position. During this process, the pallet positioning device ensures the pallet remains stable during lifting and accurately positions itself upon reaching the target location to complete the loading and unloading operation. The entire process is automated through an electrical control system, which can flexibly adjust the lifting speed and start / stop timing according to actual needs, ensuring the safe and efficient vertical transport of palletized goods.
[0003] During use, fixed-size pallet slots or support claws are only compatible with pallets of specific specifications. If the length and width of the pallet deviate significantly or the bottom structure is different, it will not be able to be accurately positioned, and may even cause the pallet to tilt or lean. In the existing technology, detachable slot components are designed, and standardized slot modules are prefabricated for common pallet specifications. The modules are connected by dovetail grooves or quick clamps.
[0004] However, if the pallet lacks fall protection during the lifting process, mechanical failure may cause the pallet to suddenly fall, injuring people or equipment below. Utility Model Content
[0005] To overcome the above deficiencies, this utility model provides a pallet lifting machine with a protective structure, which aims to improve the problem in the prior art where, if the pallet lacks anti-fall protection during the lifting process, mechanical failure may cause the pallet to suddenly fall and injure personnel or equipment below.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a pallet lifting machine with a protective structure, comprising a machine body, a protective mechanism installed in the middle of the machine body, the protective mechanism serving a protective function, a deceleration mechanism installed at the bottom of the machine body, the deceleration mechanism serving a deceleration function, the protective mechanism comprising a fixing plate, the fixing plate being fixed to the left side of the middle of the machine body, a rocker arm being provided on the right side of the fixing plate, a bidirectional threaded rod being fixedly connected to the rear side of the rocker arm, a rotating block being rotatably connected to the rear side of the bidirectional threaded rod, threaded blocks being threadedly connected to the front and rear sides of the outer side of the bidirectional threaded rod, and a baffle being fixedly connected to the right side of the threaded block.
[0007] As a further description of the above technical solution:
[0008] The deceleration mechanism includes multiple support plates, which are disposed inside the machine body. Springs are fixedly connected to the top left and right ends of each support plate, and a connecting column is fixedly connected to the top of each spring. A support plate is fixedly connected to the top of each connecting column, and a support column is fixedly connected to the bottom center of each support plate. A rotating rod is fixedly connected to the bottom of the support column, and a moving rod is rotatably connected to the left and right sides of the rotating rod.
[0009] As a further description of the above technical solution:
[0010] A sliding groove is provided on the outer side of the machine body, and the inner wall of the sliding groove is slidably connected to the bottom of the moving rod.
[0011] As a further description of the above technical solution:
[0012] A mounting block is provided on the outside of the machine body. The mounting block is located on the top of the second support plate. Multiple anti-slip balls are evenly distributed on the top of the mounting block.
[0013] As a further description of the above technical solution:
[0014] A connecting groove is provided on the outer side of the machine body. The connecting groove is opened on the right side of the fixed plate. A limit rod is slidably connected to the inner wall of the connecting groove. The outer side of the limit rod is fixedly connected to the outer side of the baffle.
[0015] As a further description of the above technical solution:
[0016] The outer side of the machine body is provided with a rubber sleeve, and the outer side of the rubber sleeve is provided with an anti-slip ring.
[0017] As a further description of the above technical solution:
[0018] The outer side of the body is provided with a frame, and the four corners at the bottom of the frame are fixedly connected with support legs.
[0019] As a further description of the above technical solution:
[0020] The bottom of the machine body is equipped with a mounting plate, and screws are threaded to the four corners of the top of the mounting plate.
[0021] This utility model has the following beneficial effects:
[0022] 1. In this utility model, the operating rocker arm rotates the bidirectional threaded rod, thereby causing the threaded block to move synchronously and drive the baffle to move. By controlling the rotation direction and angle of the rocker arm, the position of the baffle can be adjusted to meet the protection requirements and ensure the normal operation of the pallet lifting machine.
[0023] 2. In this utility model, when an external force is applied to the bearing plate two, it moves downward. The compression spring absorbs energy and provides initial buffering. The support column moves downward accordingly, pushing the rotating rod to rotate, causing the moving rod to shift, dispersing the pressure, and providing further buffering. Attached Figure Description
[0024] The present invention will be further described below with reference to the accompanying drawings.
[0025] Figure 1 This is a front view of a pallet lifting machine with a protective structure proposed in this utility model;
[0026] Figure 2 This is a perspective view of a pallet lifting machine with a protective structure proposed in this utility model;
[0027] Figure 3 This is a side view of a pallet lifting machine with a protective structure proposed in this utility model;
[0028] Figure 4 This is a partial structural diagram of a pallet lifting machine with a protective structure proposed in this utility model;
[0029] Figure 5 This is a schematic diagram of the deceleration mechanism of a pallet lifting machine with a protective structure proposed in this utility model.
[0030] In the diagram: 1. Body; 2. Protective mechanism; 201. Fixing plate; 202. Rocker arm; 203. Two-way threaded rod; 204. Rotating block; 205. Threaded block; 206. Baffle; 3. Slowing mechanism; 301. Bearing plate one; 302. Spring; 303. Connecting column; 304. Bearing plate two; 305. Support column; 306. Rotating rod; 307. Moving rod; 4. Sliding groove; 5. Placement block; 6. Anti-slip ball; 7. Connecting groove; 8. Limiting rod; 9. Rubber sleeve; 10. Anti-slip ring; 11. Frame; 12. Support leg; 13. Mounting plate; 14. Screw. Detailed Implementation
[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0032] Reference Figure 1 , Figure 4 and Figure 5 This utility model provides an embodiment of a pallet lifting machine with a protective structure, comprising a body 1, a protective mechanism 2 installed in the middle of the body 1 for protection, and a deceleration mechanism 3 installed at the bottom of the body 1 for deceleration. The protective mechanism 2 includes a fixing plate 201 fixed to the left side of the middle of the body 1, and a rocker arm 202 provided on the right side of the fixing plate 201. A bidirectional threaded rod 203 is fixedly connected to the rear side of the rocker arm 202. Rotating the rocker arm 202 will drive the bidirectional threaded rod 203 to rotate. A rotating block 204 is rotatably connected. Threaded blocks 205 are threadedly connected to the front and rear sides of the outer side of the bidirectional threaded rod 203. A baffle 206 is fixedly connected to the right side of the threaded block 205. A placement block 5 is provided on the outer side of the machine body 1. The placement block 5 is located on the top of the bearing plate 204. Multiple anti-slip balls 6 are equidistantly arranged on the top of the placement block 5 to prevent slipping. A connecting groove 7 is provided on the outer side of the machine body 1. The connecting groove 7 is opened on the right side of the fixed plate 201. A limit rod 8 is slidably connected to the inner wall of the connecting groove 7. The outer side of the limit rod 8 is fixedly connected to the outer side of the baffle 206. The limit rod 8 serves to limit movement.
[0033] Specifically, by operating the rocker arm 202, the bidirectional threaded rod 203 can be driven to rotate. The rotation of the bidirectional threaded rod 203 will cause the threaded blocks 205 on both sides connected to it to move synchronously relative to each other. A baffle 206 is fixed on the threaded block 205, and its movement can be driven by the movement of the threaded block 205. By precisely controlling the rotation direction of the rocker arm 202, the position of the baffle 206 can be adjusted to meet the protection requirements and ensure the smooth operation of the pallet lifting machine. A placement block 5 is configured on the outside of the machine body 1. The placement block 5 is located on the top of the bearing plate 204. Multiple anti-slip balls 6 are arranged at equal intervals on the top of the placement block 5 to achieve the anti-slip function. A connecting groove 7 is also configured on the outside of the machine body 1. The connecting groove 7 is opened on the right side of the fixed plate 201. A sliding limit rod 8 is provided on the inner wall of the connecting groove 7. The outer side of the limit rod 8 is fixedly connected to the outer side of the baffle 206. The limit rod 8 has a limiting function.
[0034] Reference Figure 2 , Figure 3 and Figure 5 The deceleration mechanism 3 includes multiple support plates 301, which are located inside the body 1. Springs 302 are fixedly connected to the top left and right ends of the support plates 301 to provide compression and rebound. A connecting column 303 is fixedly connected to the top of the springs 302. A support plate 304 is fixedly connected to the top of the connecting column 303. A support column 305 is fixedly connected to the middle of the bottom end of the support plate 304. A rotating rod 306 is fixedly connected to the bottom of the support column 305. Moving rods 307 are rotatably connected to the left and right sides of the rotating rod 306. A sliding groove 4 is provided on the outer side of the body 1. The inner wall of the sliding groove 4 is slidably connected to the bottom of the moving rod 307, allowing the moving rod 307 to move within the sliding groove 4.
[0035] Specifically, when an external force is applied to the bearing plate 304, the bearing plate 304 will move downward, which will cause the connecting column 303 to compress the spring 302. The spring 302 absorbs energy with its elastic potential energy and completes the initial buffering process. At the same time, the support column 305 at the bottom of the bearing plate 304 also descends, causing the rotating rod 306 to rotate. The moving rods 307 connected to the left and right sides of the rotating rod 306 will be displaced accordingly. The moving rods 307 further disperse the pressure by adjusting their position and angle. The outer side of the body 1 is provided with a sliding groove 4. The inner wall of the sliding groove 4 is slidably connected to the bottom of the moving rod 307, so that the moving rod 307 can move within the sliding groove 4.
[0036] Reference Figure 1 , Figure 2 and Figure 3 A rubber sleeve 9 is provided on the outside of the body 1, and an anti-slip ring 10 is provided on the outside of the rubber sleeve 9 to prevent slipping. A frame 11 is provided on the outside of the body 1, and a support leg 12 is fixedly connected to the four corners of the bottom of the frame 11 to provide support. An installation plate 13 is installed at the bottom of the body 1, and screws 14 are threadedly connected to the four corners of the top of the installation plate 13.
[0037] Specifically, the outer side of the body 1 is equipped with a rubber sleeve 9, and the outer side of the rubber sleeve 9 is further provided with an anti-slip ring 10 to achieve an anti-slip function. The outer side of the body 1 is also provided with a frame 11, and the four corners at the bottom of the frame 11 are all securely connected with support legs 12 to provide support. The bottom of the body 1 is equipped with a mounting plate 13, and the four corners at the top of the mounting plate 13 are all connected with screws 14 by threads.
[0038] Working principle: Rotating the rocker arm 202 drives the bidirectional threaded rod 203 to rotate. The rotation of the bidirectional threaded rod 203 will drive the threaded blocks 205 connected by threads on the front and rear sides to move synchronously in opposite directions. A baffle 206 is installed on the threaded block 205, which can be moved. By controlling the rotation of the rocker arm 202, the direction can be adjusted and the position of the baffle 206 can be adjusted to meet the protection requirements, so as to protect and ensure the normal operation of the pallet lifting machine.
[0039] When an external force is applied to the bearing plate 304, the bearing plate 304 moves downward, causing the connecting column 303 to compress the spring 302. The spring 302 absorbs energy using its own elastic potential energy, achieving initial buffering. At the same time, the support column 305 at the bottom of the bearing plate 304 moves downward, pushing the rotating rod 306 to rotate, causing the moving rod 307 connected to the left and right sides of the rotating rod 306 to shift. The moving rod 307 further disperses the pressure by changing its position and angle, thus playing a buffering role.
[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A pallet lifting machine with a protective structure, comprising a body (1), characterized in that: A protective mechanism (2) is installed in the middle of the body (1), which plays a protective role. A deceleration mechanism (3) is installed at the bottom of the body (1), which plays a deceleration role. The protection mechanism (2) includes a fixing plate (201), which is fixed to the left side of the middle part of the body (1). A rocker arm (202) is provided on the right side of the fixing plate (201). A two-way threaded rod (203) is fixedly connected to the rear side of the rocker arm (202). A rotating block (204) is rotatably connected to the rear side of the two-way threaded rod (203). Threaded blocks (205) are threadedly connected to the front and rear sides of the outer side of the two-way threaded rod (203). A baffle (206) is fixedly connected to the right side of the threaded block (205).
2. The pallet lifting machine with a protective structure according to claim 1, characterized in that: The deceleration mechanism (3) includes multiple support plates (301), which are disposed inside the body (1). Springs (302) are fixedly connected to the top left and right ends of the support plates (301). A connecting column (303) is fixedly connected to the top of the springs (302). A support plate (304) is fixedly connected to the top of the connecting column (303). A support column (305) is fixedly connected to the middle of the bottom end of the support plate (304). A rotating rod (306) is fixedly connected to the bottom of the support column (305). A moving rod (307) is rotatably connected to the left and right sides of the rotating rod (306).
3. A pallet lifting machine with a protective structure according to claim 2, characterized in that: The outer side of the body (1) is provided with a sliding groove (4), and the inner wall of the sliding groove (4) is slidably connected to the bottom of the moving rod (307).
4. A pallet lifting machine with a protective structure according to claim 2, characterized in that: The outer side of the body (1) is provided with a mounting block (5), which is located on the top of the bearing plate (304). Multiple anti-slip balls (6) are equidistantly arranged on the top of the mounting block (5).
5. A pallet lifting machine with a protective structure according to claim 1, characterized in that: A connecting groove (7) is provided on the outer side of the body (1). The connecting groove (7) is opened on the right side of the fixed plate (201). A limiting rod (8) is slidably connected to the inner wall of the connecting groove (7). The outer side of the limiting rod (8) is fixedly connected to the outer side of the baffle (206).
6. A pallet lifting machine with a protective structure according to claim 1, characterized in that: The outer side of the body (1) is provided with a rubber sleeve (9), and the outer side of the rubber sleeve (9) is provided with an anti-slip ring (10).
7. A pallet lifting machine with a protective structure according to claim 1, characterized in that: The outer side of the body (1) is provided with a frame (11), and the four corners of the bottom of the frame (11) are fixedly connected with legs (12).
8. A pallet lifting machine with a protective structure according to claim 1, characterized in that: The bottom of the body (1) is fitted with an installation plate (13), and screws (14) are threaded to the four corners of the top of the installation plate (13).