Hydraulic carrier structure with low noise and shock absorption
The design of the worm gear and threaded rod slide system solves the problem of fixed pallet area of the hydraulic transporter, realizes flexible adjustment of the pallet area and stable fixation of the goods, reduces vibration and noise, and improves the versatility and safety of the transporter.
Patent Information
- Application Number
- CN202423204896.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-12-25
AI Technical Summary
The existing hydraulic transport trucks have a fixed pallet area and cannot adapt to the handling needs of goods of different sizes. The lack of side protection may cause goods to fall and pose a safety hazard.
A rotatable worm gear structure and threaded rod slide system are designed to achieve adjustable pallet area and multi-angle fixation of goods, combined with hydraulic shock absorbers and rubber wheels to reduce vibration and noise.
It realizes flexible adjustment of the pallet area, prevents goods from falling, improves the versatility and safety of the transporter, and at the same time reduces vibration and noise, protecting goods and equipment.
Smart Images
Figure CN223479094U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of material handling machinery technology, and in particular to a hydraulic material handling vehicle structure with low noise and vibration reduction. Background Art
[0002] A hydraulic pallet truck is a tool used for moving goods. It is often necessary to move goods of various types and weights. Hydraulic pallet trucks can efficiently and conveniently complete these tasks. They can lift and transport heavy objects, helping workers quickly and safely move goods from one location to another. Featuring a low-noise, vibration-damping structure, the hydraulic pallet truck has been optimized and improved based on traditional hydraulic pallet trucks. It aims to provide a quieter working environment, reducing the impact of noise on operators and the surrounding environment. At the same time, the enhanced vibration damping function better protects the goods being moved, reducing the risk of damage due to vibration during transport, and also extending the service life of the pallet truck itself, reducing maintenance costs.
[0003] Existing pallet trucks use an integrated structure with a fixed pallet area. This means that the fixed pallet area cannot meet the needs of handling large-sized goods during actual handling. When handling small-sized goods, due to the lack of effective side protection, the goods will fall from both sides, which will not only cause damage to the goods, but also pose certain safety hazards. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a hydraulic pallet truck structure with low noise and vibration reduction, which aims to improve the problem that the fixed size of the existing pallet truck cannot meet the needs of different working conditions.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a hydraulic pallet truck structure with low noise and vibration reduction, including a fixed frame. Two worm gears are rotatably connected between the left and right sides of the fixed frame, and the two worm gears are fixedly connected. A first handwheel is fixedly connected to the left end of the left worm gear. Worm wheels are meshed with the bottom of both worm gears. The rear ends of both worm wheels pass through and extend to the rear side of the fixed frame. Both worm wheels are rotatably connected to the fixed frame. A rotating plate is fixedly connected to the rear side of both worm wheels. Two fixed plates are fixedly connected to the rear side of the fixed frame. The two rotating plates are rotatably connected to adjacent fixed plates. Fixing components are provided inside the two rotating plates, and the fixing components are used to fix items.
[0006] Preferably, the fixing component includes a threaded rod, which is rotatably connected to the rotating plate. A second handwheel is fixedly connected to the rear side of the threaded rod. A sliding groove is provided on the left side of the inner wall of the rotating plate. Two sliding members are slidably connected in the sliding groove. Both sliding members are threadedly connected to the threaded rod. Rotating rods are rotatably connected to the top and bottom of the two sliding members. A moving plate is rotatably connected between the right sides of the four rotating rods.
[0007] Preferably, a rotating component is rotatably connected to the bottom front side of the fixed frame, and hydraulic shock absorbers are fixedly connected to both the rotating component and the bottom of the fixed plate. Wheels are fixedly connected to the bottom of each of the three hydraulic shock absorbers.
[0008] Preferably, a connecting rod is fixedly connected to the surface of the rotating component, and a handrail is fixedly connected to the top of the connecting rod.
[0009] Preferably, the thread directions at the front and rear ends of the threaded rod are opposite.
[0010] Preferably, all three wheels are made of rubber.
[0011] Preferably, the threads of the two worms are in opposite directions.
[0012] Preferably, the internal structure of the rotating plate on the right is a mirror image of the rotating plate on the left.
[0013] This utility model has the following beneficial effects:
[0014] 1. In this utility model, the worm is rotated by rotating the first handwheel, which in turn drives the worm wheel and the rear rotating plate to rotate on the fixed plate. Through the self-locking characteristic between the worm wheel and the worm, the rotating plate can be flipped, thereby expanding the pallet area. At the same time, standing it up can prevent goods from falling from both sides.
[0015] 2. In this utility model, by rotating the second handwheel, the threaded rod is driven to rotate, thereby causing the sliding part to slide in the groove, which in turn drives the rotating rod to move, thereby causing the moving plate to clamp the goods in the middle, thus achieving the effect of fixing the goods and preventing the goods from swaying left and right during transportation, effectively avoiding the goods from tipping over. Attached Figure Description
[0016] Figure 1 This is a main diagram of the hydraulic pallet truck structure with low noise and vibration reduction proposed in this utility model;
[0017] Figure 2 This is a schematic cross-sectional view of the rotating plate of the hydraulic pallet truck structure with low noise and vibration reduction proposed in this utility model.
[0018] Figure 3This is a schematic diagram of the rotating rod of the hydraulic pallet truck structure with low noise and vibration reduction proposed in this utility model.
[0019] Legend:
[0020] 1. Fixed frame; 2. Rotating component; 3. Hydraulic shock absorber; 4. Wheel; 5. Worm gear; 6. Worm wheel; 7. First handwheel; 8. Fixed plate; 9. Rotating plate; 10. Second handwheel; 11. Moving plate; 12. Rotating rod; 13. Threaded rod; 14. Slide groove; 15. Sliding component; 16. Connecting rod; 17. Handrail. Detailed Implementation
[0021] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0022] Reference Figure 1 and Figure 2 This utility model provides an embodiment of a low-noise, vibration-damping hydraulic pallet truck structure, including a fixed frame 1. Two worm gears 5 are rotatably connected between the left and right sides of the fixed frame 1, and the two worm gears 5 are fixedly connected to each other. A first handwheel 7 is fixedly connected to the left end of the left worm gear 5. Worm wheels 6 are meshed with the bottom of both worm gears 5. The rear ends of both worm wheels 6 pass through and extend to the rear side of the fixed frame 1. Both worm wheels 6 are rotatably connected to the fixed frame 1. Rotating plates 9 are fixedly connected to the rear side of both worm wheels 6. Two fixed plates 8 are fixedly connected to the rear side of the fixed frame 1. Both rotating plates 9 are rotatably connected to the adjacent fixed plates 8. Fixing components are provided inside the two rotating plates 9 for fixing items.
[0023] Specifically, by rotating the first handwheel 7, the worm gear 5 is rotated, which in turn drives the worm wheel 6 at the bottom to rotate. The rotation of the worm wheel 6 drives the rotating plate 9 on the rear side to rotate. Due to the self-locking characteristic between the worm gear 5 and the worm wheel 6, the rotating plate 9 can stop at any angle. When the rotating plate 9 is placed vertically, it can act as a fence to prevent items from falling from both sides. When placed horizontally, it can act as an extension plate of the fixed plate 8, thereby placing large goods and improving the versatility of the pallet truck.
[0024] Reference Figure 2 and Figure 3The fixed assembly includes a threaded rod 13, which is rotatably connected to the rotating plate 9. A second handwheel 10 is fixedly connected to the rear side of the threaded rod 13. A sliding groove 14 is provided on the left side of the inner wall of the rotating plate 9. Two sliding parts 15 are slidably connected in the sliding groove 14. Both sliding parts 15 are threadedly connected to the threaded rod 13. Rotating rods 12 are rotatably connected to the top and bottom of the two sliding parts 15. A movable plate 11 is rotatably connected between the right sides of the four rotating rods 12.
[0025] Specifically, by rotating the second handwheel 10, the threaded rod 13 is rotated. Since the threads of the two sections of the threaded rod 13 are opposite, the two sliding parts 15 slide in the slide groove 14, thereby driving the rotating rod 12 to move. The movement of the rotating rod 12 drives the moving plate 11 to move, thereby clamping and fixing the goods on both sides to prevent the goods from shifting and falling during transportation. When the rotating plate 9 is laid flat, the moving plate 11 is raised to lift the goods, making it easier for the staff to unload them.
[0026] Reference Figure 1 A rotating component 2 is rotatably connected to the bottom front side of the fixed frame 1. Both the rotating component 2 and the bottom of the fixed plate 8 are fixedly connected to hydraulic shock absorbers 3. The bottom of each of the three hydraulic shock absorbers 3 is fixedly connected to a wheel 4.
[0027] Specifically, the hydraulic shock absorber 3 effectively reduces the bumps and vibrations caused by uneven ground, making the transport vehicle more stable during travel, protecting the goods from severe vibrations, and absorbing and buffering vibration energy to reduce noise caused by vibrations and create a quieter working environment.
[0028] Reference Figure 1 A connecting rod 16 is fixedly connected to the surface of the rotating part 2, and a handrail 17 is fixedly connected to the top of the connecting rod 16.
[0029] Specifically, the cart can be pulled or pushed by pulling or pushing the handle 17, and rotating the handle 17 can drive the rotating part 2 to rotate, thereby driving the wheels 4 at the bottom to rotate, thus realizing the steering of the cart.
[0030] Reference Figure 2 and Figure 3 The threads of the two sections of the threaded rod 13 are in opposite directions.
[0031] Specifically, the opposite arrangement of the two threads allows the sliding member 15 connected to the threaded rod 13 to slide relative to each other when the threaded rod 13 rotates, thereby driving the rotating rod 12 to lift the moving plate 11.
[0032] Reference Figure 1 All three wheels are made of rubber.
[0033] Specifically, rubber has a certain degree of elasticity, which can effectively absorb the impact of the ground, reduce the vibration of the handling vehicle during the movement, protect the goods and equipment, and generate relatively little noise when in contact with the ground, providing a quieter working environment.
[0034] Reference Figure 1 The threads of the two worms 5 are in opposite directions.
[0035] Specifically, when the two worms 5 with opposite thread directions rotate, they drive the worm wheel 6 to rotate in different directions, thereby simultaneously driving the rotating plate 9 to rotate.
[0036] Reference Figure 1 and Figure 2 The internal structure of the rotating plate 9 on the right is a mirror image of the rotating plate 9 on the left.
[0037] Specifically, the rotating plate 9 with a mirror structure clamps and fixes the goods from both sides, making it more stable and preventing the goods from falling off from both sides.
[0038] Working principle: In use, rotating the first handwheel 7 drives the worm gear 5 to rotate, which in turn drives the worm wheel 6 at the bottom to rotate. The rotation of the worm wheel 6 drives the rotating plate 9 at the rear to rotate. Due to the self-locking characteristic between the worm gear 5 and the worm wheel 6, the rotating plate 9 can stop at any angle. When the rotating plate 9 is placed vertically, it can act as a fence to prevent items from falling from both sides. Rotating the second handwheel 10 drives the threaded rod 13 to rotate. Since the threads of the two sections of the threaded rod 13 are opposite, it drives the two sliding parts 15 to slide in the groove 14, which in turn drives the rotating rod 12 to move. The movement of the rotating rod 12 drives the moving plate 11 to move, thereby clamping and fixing the goods on both sides to prevent the goods from shifting and falling during transportation.
[0039] When the rotating plate 9 is placed horizontally, it can serve as an extension of the fixed plate 8, thereby preventing large goods from being handled and improving the versatility of the pallet truck. When the rotating plate 9 is laid flat, the movable plate 11 can be raised to lift the goods, making it easier for workers to unload them. The trolley can be pulled or pushed by pulling or pushing the handle 17. Rotating the handle 17 can drive the rotating part 2 to rotate, thereby driving the wheels 4 at the bottom to rotate, thus enabling the trolley to turn.
[0040] 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 hydraulic pallet truck structure with low noise and vibration reduction, including a fixed frame (1), characterized in that: The fixing frame (1) is rotatably connected between the left and right sides by two worm gears (5). The two worm gears (5) are fixedly connected to each other. The left end of the left worm gear (5) is fixedly connected to a first handwheel (7). The bottom of the two worm gears (5) is meshed with a worm wheel (6). The rear ends of the two worm wheels (6) pass through and extend to the rear side of the fixing frame (1). The two worm wheels (6) are rotatably connected to the fixing frame (1). The rear side of the two worm wheels (6) is fixedly connected to a rotating plate (9). The rear side of the fixing frame (1) is fixedly connected to two fixing plates (8). The two rotating plates (9) are rotatably connected to the adjacent fixing plate (8). The two rotating plates (9) are provided with fixing components inside. The fixing components are used to fix the items.
2. The hydraulic pallet truck structure with low noise and vibration reduction according to claim 1, characterized in that: The fixing assembly includes a threaded rod (13), which is rotatably connected to a rotating plate (9). A second handwheel (10) is fixedly connected to the rear side of the threaded rod (13). A sliding groove (14) is provided on the left side of the inner wall of the rotating plate (9). Two sliding parts (15) are slidably connected in the sliding groove (14). Both sliding parts (15) are threadedly connected to the threaded rod (13). Rotating rods (12) are rotatably connected to the top and bottom of the two sliding parts (15). A moving plate (11) is rotatably connected between the right sides of the four rotating rods (12).
3. The hydraulic pallet truck structure with low noise and vibration reduction according to claim 1, characterized in that: The bottom front side of the fixed frame (1) is rotatably connected to a rotating component (2), and the bottom of the rotating component (2) and the fixed plate (8) are both fixedly connected to hydraulic shock absorbers (3), and the bottom of the three hydraulic shock absorbers (3) are all fixedly connected to wheels (4).
4. The hydraulic pallet truck structure with low noise and vibration reduction according to claim 3, characterized in that: A connecting rod (16) is fixedly connected to the surface of the rotating component (2), and a handrail (17) is fixedly connected to the top of the connecting rod (16).
5. The hydraulic pallet truck structure with low noise and vibration reduction according to claim 2, characterized in that: The threaded rod (13) has opposite thread directions at its front and rear ends.
6. The hydraulic pallet truck structure with low noise and vibration reduction according to claim 3, characterized in that: All three wheels (4) are made of rubber.
7. The hydraulic pallet truck structure with low noise and vibration reduction according to claim 1, characterized in that: The two worms (5) have opposite thread directions.
8. The hydraulic pallet truck structure with low noise and vibration reduction according to claim 1, characterized in that: The internal structure of the rotating plate (9) on the right is a mirror image of the rotating plate (9) on the left.