Damping and buffering device of electric carrier

Abstract

The utility model relates to the technical field of buffering devices, in particular to an electric carrier damping and buffering device which comprises a fixed base, a main body mechanism is movably arranged on the top of the fixed base, and when a user places goods on the top of a pressure bearing plate and then encounters common jolts, the main body mechanism is fixed. The pressure bearing plate can apply downward acting force to the connecting stand column body and the supporting spring and the piston damper in the connecting stand column, so that the supporting spring and the piston damper are utilized to perform reciprocating slow rebound; meanwhile, the bottom end of the connecting stand column and the top end of the supporting circular ring reduce noise caused by collision between the supporting stand column and the connecting stand column through a first set of gaskets and a second set of gaskets, and when rapid and violent jolting occurs, pressure of a bearing pressure plate can be rapidly received through two steel plate springs and a noise reduction pad; and through the combined design of helping the supporting spring and the piston damper to reduce violent pressure, the purpose that the electric carrier damping and buffering device can adapt to different jolting conditions conveniently is achieved.

Description

Technical Field

[0001] This utility model relates to the field of buffer device technology, specifically a shock absorption and buffer device for an electric transport vehicle. Background Technology

[0002] In industrial material handling scenarios, electric pallet trucks are crucial. However, traditional pallet trucks have significant shortcomings in shock absorption and cushioning. Factory workshops and logistics warehouses often have uneven floors with potholes and bumps, causing severe vibrations when pallet trucks travel on them. This not only makes goods more susceptible to damage and reduces handling safety, but also subjectes components to frequent impacts, accelerating wear and tear, increasing maintenance costs and frequency, and impacting work efficiency. Drivers working in such a vibrating environment for extended periods experience poor comfort, fatigue, and safety hazards. Therefore, there is an urgent need for a high-performance shock absorption and cushioning device for electric pallet trucks to improve handling stability, reduce wear and tear, and ensure safe and efficient operations.

[0003] Traditional electric pallet truck shock absorption devices exist, but these devices do not solve the problem of adapting to different bumpy conditions. Therefore, we propose an electric pallet truck shock absorption device. Utility Model Content

[0004] The purpose of this invention is to provide a shock-absorbing and buffering device for electric transport vehicles, so as to solve the problem mentioned in the background art that it is not easy to adapt to different bumpy conditions.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An electric pallet truck shock absorption device includes a fixed base, a main body mechanism movably mounted on the top of the fixed base, a control mechanism fixedly mounted on one side of the main body mechanism, and a moving mechanism fixedly mounted on the bottom of the fixed base. The main body mechanism includes a load-bearing pressure plate, support columns, and connecting columns. Four support columns are fixedly mounted on the bottom end of the load-bearing pressure plate, four support springs are fixedly mounted inside the four support columns, and four connecting columns are movably mounted on the top ends of the four support springs.

[0007] Preferably, the four supporting columns and the four connecting columns are all hollow stamped metal column-shaped workpieces. The bottom end of the four supporting columns and the top end of the four connecting columns are each fixedly provided with four sets of connecting plates. The surface of each of the four sets of connecting plates is provided with four sets of threaded holes. The four supporting columns and the four connecting columns are all fixedly connected to the top end of the fixed base and the bearing pressure plate by a set of fixing bolts. When the electric pallet truck shock absorption and buffer device is used, when the user places the goods on the top of the bearing pressure plate and encounters ordinary bumps, the bearing pressure plate will give the connecting column body and the supporting spring and piston damper inside the connecting column a downward force, thereby using the supporting spring and piston damper to slowly rebound back.

[0008] Preferably, the diameter of the four supporting columns is smaller than the diameter of the four connecting columns. The top ends of the four supporting columns extend through the bottom ends of the four connecting columns. Four supporting rings are fixedly installed on the surface of the four supporting columns. A first set of washers is fixedly installed at the top end of each of the four supporting rings. A second set of washers is fixedly installed at the bottom end of each of the four connecting columns. Four piston dampers are fixedly installed inside the four supporting springs. The four supporting columns, four connecting columns, four supporting springs, four piston dampers, four sets of connecting plates, four sets of threaded holes, and the first and second sets of washers are all symmetrical and parallel to each other. During the vibration reduction process, the noise of the collision between the supporting columns and the connecting columns is reduced by the first and second sets of washers at the bottom end of the connecting columns and the top end of the supporting rings.

[0009] Preferably, two leaf springs are fixedly installed in the middle of the four supporting columns, and noise reduction pads are fixedly installed at the top of the two leaf springs. The first set of washers, the second set of washers, and the noise reduction pads are all made of rubber or silicone. When encountering rapid and violent bumps, the two leaf springs and the noise reduction pads can quickly accept and bear the pressure of the pressure plate, helping the supporting springs and piston dampers reduce the violent pressure.

[0010] Preferably, the control mechanism includes a handling rod for the transport vehicle and a controller. The controller is fixedly installed on the top of the handling rod, and a set of control buttons is fixedly installed on the top of the controller, which facilitates better control of the shock absorption device of the electric transport vehicle through the control mechanism.

[0011] Preferably, the action mechanism includes two front drive wheels, and two rear drive wheels are fixedly arranged on one side of the two front drive wheels. Both the two front drive wheels and the two rear drive wheels are electrically driven. The two front drive wheels and the two rear drive wheels are symmetrical and parallel to each other, which is conducive to the purpose of making the shock absorption device of the electric transport vehicle move freely through the action mechanism.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This electric pallet truck shock absorption device first fixes the support column and connecting column to the top of the fixed base and the bottom of the bearing pressure plate using a set of fixing bolts. Support springs and piston dampers are installed inside the support columns. When using this device, after placing goods on top of the bearing pressure plate, the bearing pressure plate applies a downward force to the connecting column body and the support springs and piston dampers inside the connecting column when encountering normal bumps. This causes the support springs and piston dampers to slowly rebound. Simultaneously, the bottom of the connecting column and the top of the support ring reduce noise from collisions between the support column and the connecting column using a first set of washers and a second set of washers. When encountering rapid and severe bumps, the two leaf springs and noise-reducing pads quickly absorb and bear the pressure of the pressure plate. This combination of design, where the support springs and piston dampers reduce severe pressure, allows the electric pallet truck shock absorption device to adapt to different bump conditions.

[0014] 2. The shock absorption and buffer device for an electric pallet truck is designed so that the user can pull the pallet truck handle and control the control buttons on the controller surface, thereby moving the electric pallet truck through the front drive wheels and rear drive wheels. This design achieves the purpose of easy control and free movement of the electric pallet truck shock absorption and buffer device. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a shock-absorbing and buffering device for an electric transport vehicle according to the present invention;

[0016] Figure 2 This is a three-dimensional structural diagram of the bearing pressure plate and the supporting column surface of this utility model;

[0017] Figure 3 This is a three-dimensional structural diagram of the connecting column surface of this utility model;

[0018] Figure 4 This is a schematic diagram of the surface and internal three-dimensional structure of the support column of this utility model.

[0019] In the diagram: 1. Fixed base; 2. Bearing pressure plate; 3. Support column; 4. Support spring; 5. Connecting column; 6. Connecting plate; 7. Threaded hole; 8. Fixing bolt group; 9. Support ring; 10. First set of washers; 11. Second set of washers; 12. Piston damper; 13. Leaf spring; 14. Noise reduction pad; 15. Hand lever of the pallet truck; 16. Controller; 17. Control button group; 18. Front drive wheel; 19. Rear drive wheel Detailed Implementation

[0020] 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.

[0021] Please see Figures 1-4 As shown, this utility model provides a technical solution for a shock absorption and buffer device for an electric pallet truck:

[0022] An electric pallet truck shock absorption device includes a fixed base 1, a main body mechanism movably mounted on the top of the fixed base 1, a control mechanism fixedly mounted on one side of the main body mechanism, and a moving mechanism fixedly mounted on the bottom of the fixed base 1. The main body mechanism includes a bearing pressure plate 2, support columns 3, and connecting columns 5. Four support columns 3 are fixedly mounted on the bottom end of the bearing pressure plate 2, four support springs 4 are fixedly mounted inside the four support columns 3, and four connecting columns 5 are movably mounted on the top of the four support springs 4.

[0023] In this embodiment, preferably, the four supporting columns 3 and the four connecting columns 5 are all hollow stamped metal column-shaped workpieces. The bottom ends of the four supporting columns 3 and the top ends of the four connecting columns 5 are all fixedly provided with four sets of connecting plates 6. The surfaces of the four sets of connecting plates 6 are provided with four sets of threaded holes 7. The four supporting columns 3 and the four connecting columns 5 are all fixedly connected to the top end of the fixed base 1 and the bearing pressure plate 2 by a set of fixing bolts 8. When the user places the goods on the top of the bearing pressure plate 2 and encounters ordinary bumps, the bearing pressure plate 2 will give the connecting column 5 body and the supporting spring 4 and piston damper 12 inside the connecting column 5 a downward force, thereby using the supporting spring 4 and piston damper 12 to slowly rebound back.

[0024] In this embodiment, preferably, the diameter of the four supporting columns 3 is smaller than the diameter of the four connecting columns 5. The top ends of the four supporting columns 3 penetrate the bottom ends of the four connecting columns 5. Four supporting rings 9 are fixedly installed on the surface of the four supporting columns 3. A first set of washers 10 is fixedly installed at the top of each of the four supporting rings 9. A second set of washers 11 is fixedly installed at the bottom of each of the four connecting columns 5. Four piston dampers 12 are fixedly installed inside the four supporting springs 4. The four supporting columns 3, four connecting columns 5, four supporting springs 4, four piston dampers 12, four sets of connecting plates 6, four sets of threaded holes 7, and the first set of washers 10 and the second set of washers 11 are all symmetrical and parallel to each other. During the vibration reduction process, the noise of the collision between the supporting columns 3 and the connecting columns 5 is reduced by the first set of washers 10 and the second set of washers 11 through the bottom ends of the connecting columns 5 and the top ends of the supporting rings 9.

[0025] In this embodiment, preferably, two leaf springs 13 are fixedly installed in the middle of the four supporting columns 3, and noise reduction pads 14 are fixedly installed at the top of the two leaf springs 13. The first set of washers 10, the second set of washers 11 and the noise reduction pads 14 are all made of rubber or silicone. When encountering rapid and violent bumps, the two leaf springs 13 and the noise reduction pads 14 can quickly accept and bear the pressure of the pressure plate 2, helping to reduce the violent pressure on the supporting springs 4 and the piston damper 12.

[0026] In this embodiment, preferably, the control mechanism includes a pallet truck handle 15 and a controller 16. The controller 16 is fixedly installed on the top of the pallet truck handle 15, and a control button group 17 is fixedly installed on the top of the controller 16, which is conducive to better controlling the shock absorption device of the electric pallet truck through the control mechanism.

[0027] In this embodiment, preferably, the moving mechanism includes two front drive wheels 18, and two rear drive wheels 19 are fixedly arranged on one side of the two front drive wheels 18. Both the two front drive wheels 18 and the two rear drive wheels 19 have electric drive capability. The two front drive wheels 18 and the two rear drive wheels 19 are symmetrical and parallel to each other, which is conducive to the purpose of making the shock absorption device of the electric transport vehicle move freely through the moving mechanism.

[0028] In this embodiment, an electric pallet truck shock absorption device is used as follows: First, the support column 3 and connecting column 5 are fixed to the top of the fixed base 1 and the bottom of the bearing pressure plate 2 using the fixing bolt group 8. The support spring 4 and piston damper 12 are installed inside the support column 3. When using this electric pallet truck shock absorption device, after the user places the goods on top of the bearing pressure plate 2 and encounters ordinary bumps, the bearing pressure plate 2 will exert a downward force on the connecting column 5 body and the support spring 4 and piston damper 12 inside the connecting column 5, thereby utilizing the support spring 4 and piston damper 12 to absorb the shock. The reciprocating mechanism slowly rebounds, while the bottom of the connecting column 5 and the top of the supporting ring 9 reduce the noise of the collision between the supporting column 3 and the connecting column 5 through the first set of washers 10 and the second set of washers 11. When encountering rapid and violent bumps, the two leaf springs 13 and the noise reduction pads 14 can quickly accept and bear the pressure of the pressure plate 2, helping the supporting spring 4 and the piston damper 12 to reduce the violent pressure. Finally, the user pulls the handle 15 of the transport vehicle and the control button group 17 on the surface of the control controller 16, thereby driving the electric transport vehicle to move through the front drive wheel 18 and the rear drive wheel 19.

[0029] 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 preferred examples and are not intended to limit the utility model. Various variations and improvements to the electric pallet truck shock absorption device may be made without departing from the spirit and scope of this utility model, and all such variations and improvements fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A shock-absorbing and buffering device for an electric transport vehicle, comprising a fixed base (1), characterized in that; The fixed base (1) has a main body mechanism movably mounted on its top, a control mechanism fixedly mounted on one side of the main body mechanism, and an action mechanism fixedly mounted on the bottom of the fixed base (1). The main body mechanism includes a bearing pressure plate (2), a support column (3), and a connecting column (5). The bearing pressure plate (2) has four support columns (3) fixedly mounted at its bottom end, and four support springs (4) are fixedly mounted inside the four support columns (3). The four support springs (4) have four connecting columns (5) movably mounted at their top ends.

2. The shock absorption and buffer device for an electric transport vehicle according to claim 1, characterized in that: The four supporting columns (3) and the four connecting columns (5) are all hollow stamped metal column-shaped workpieces. The bottom end of the four supporting columns (3) and the top end of the four connecting columns (5) are all fixedly provided with four sets of connecting plates (6). The surface of the four sets of connecting plates (6) is provided with four sets of threaded holes (7). The four supporting columns (3) and the four connecting columns (5) are all fixedly connected to the top end of the fixed base (1) and the bearing pressure plate (2) by a set of fixing bolts (8).

3. The shock absorption and buffer device for an electric transport vehicle according to claim 1, characterized in that: The diameter of the four supporting columns (3) is smaller than the diameter of the four connecting columns (5). The top of the four supporting columns (3) passes through the bottom of the four connecting columns (5). Four supporting rings (9) are fixedly provided on the surface of the four supporting columns (3). The top of each of the four supporting rings (9) is fixedly provided with a first set of washers (10). The bottom of each of the four connecting columns (5) is fixedly provided with a second set of washers (11). Four piston dampers (12) are fixedly provided inside the four supporting springs (4). The four supporting columns (3), four connecting columns (5), four supporting springs (4), four piston dampers (12), four sets of connecting plates (6), four sets of threaded holes (7), and the first set of washers (10) and the second set of washers (11) are all symmetrical and parallel to each other.

4. The shock absorption and buffer device for an electric transport vehicle according to claim 3, characterized in that: Two leaf springs (13) are fixedly installed in the middle of the four supporting columns (3), and noise reduction pads (14) are fixedly installed at the top of the two leaf springs (13). The first set of washers (10), the second set of washers (11) and the noise reduction pads (14) are all made of rubber or silicone.

5. The shock absorption and buffer device for an electric transport vehicle according to claim 1, characterized in that: The control mechanism includes a handling lever (15) and a controller (16). The controller (16) is fixedly installed on the top of the handling lever (15), and a control button group (17) is fixedly installed on the top of the controller (16).

6. The shock absorption and buffer device for an electric transport vehicle according to claim 1, characterized in that: The action mechanism includes two front drive wheels (18), and two rear drive wheels (19) are fixedly arranged on one side of the two front drive wheels (18). The two front drive wheels (18) and the two rear drive wheels (19) are all electrically driven, and the two front drive wheels (18) and the two rear drive wheels (19) are symmetrical and parallel to each other.

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