Steering wheel structure with damping effect

Abstract

The utility model relates to the technical field of damping structures, and discloses a steering wheel structure with a damping effect, which comprises a first mounting plate and a second mounting plate arranged below the first mounting plate, and one end, close to one side of the second mounting plate, of the first mounting plate is connected with a supporting assembly. The sides, away from the supporting assembly, of the first mounting plate and the second mounting plate are connected with a first connecting assembly and a second connecting assembly respectively, the second connecting assembly is connected with three damping assemblies, the portion, located between the first connecting assembly and the supporting assembly, of the first mounting plate is provided with a connecting hole, and the other end of the damping assembly located in the middle is connected with the connecting hole. According to the steering wheel structure with the damping effect, the damping assembly located in the middle is connected with the connecting hole in the middle, so that the damping assembly forms an inclination angle between the first mounting plate and the second mounting plate, a certain transverse damping effect is provided, and damage caused by transverse stress is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of damping structures, and particularly relates to a steering wheel structure with a damping effect. Background Art

[0002] With the intelligent development of the logistics industry, the application of AGV handling vehicles is becoming more and more extensive, which improves the transportation efficiency and reduces the labor cost. Especially for industries such as chemical industry, inflammable and explosive industries, the use of AGV greatly reduces the handling risk. In order to meet the multi-directional driving of AGV, at present, it is mainly achieved by installing steering wheels; since the steering wheel is the driving wheel of the AGV, when the ground is uneven, the vehicle will jolt and shake, seriously affecting the driving stability of the vehicle. Therefore, an effective damping structure can meet the driving of the vehicle on different road conditions.

[0003] For example, the patent with the publication number of CN218228559U discloses an adjustable damping mechanism for a steering wheel of an AGV, which includes an upper mounting plate and a steering wheel mounting plate arranged at intervals up and down. The upper mounting plate is connected to the vehicle frame. A steering wheel assembly is installed at the bottom of the steering wheel mounting plate. The steering wheel assembly is connected to a driving device. When the steering wheel assembly works, a steering wheel rotation radius is formed below the steering wheel mounting plate. Multiple guiding mechanisms and adjustable damping mechanisms are arranged between the upper mounting plate and the steering wheel mounting plate; by simultaneously installing multiple groups of guiding mechanisms and adjustable damping mechanisms on the upper mounting plate and the steering wheel mounting plate, when on an uneven road surface or the load changes, the springs of the damping mechanism are compressed and released accordingly, which can reduce the vibration of the vehicle body. It is also possible to replace the spring or adjust the telescopic length of the adjusting screw to solve the problems when the load is too large or the wheels slip. This adjustable damping mechanism has a simple structure, strong adaptability, and good buffering and damping effects.

[0004] However, the damping structure in the above technology still has the following problems:

[0005] Although the damping effect in the vertical direction can be achieved for the steering wheel through the guiding mechanism and the damping mechanism, when the handling vehicle drives to a pothole position, after the steering wheel descends and contacts the bottom of the pothole and then contacts the side of the pothole position, the steering wheel will be subjected to a lateral force opposite to the driving direction of the handling vehicle, resulting in lateral stress at the connection position between the steering wheel and the bottom of the handling vehicle, and it is easy to cause fracture and damage at the connection position. Summary of the Utility Model

[0006] Aiming at the deficiencies of the prior art, the utility model provides a steering wheel structure with a damping effect, for example: it can provide a certain lateral damping effect while providing a damping effect in the vertical direction for the steering wheel, reduce the fracture risk at the connection position between the steering wheel and the bottom of the handling vehicle, and improve the service life of the steering wheel.

[0007] To achieve the above object, the present utility model provides the following technical solutions: A steering wheel structure with a shock absorption effect, including a first mounting plate and a second mounting plate disposed below the first mounting plate. A steering wheel body is installed below the second mounting plate. One end of the first mounting plate close to the second mounting plate is connected with a support assembly, and the other side of the support assembly is connected to the second mounting plate. A first connection assembly and a second connection assembly are respectively connected to the sides of the first mounting plate and the second mounting plate away from the support assembly. The second connection assembly is connected with three shock absorption components. The other ends of the two shock absorption components located on the outside are connected to the first connection assembly. A connection hole is provided between the first connection assembly and the support assembly on the first mounting plate, and the other end of the shock absorption component located in the middle is connected to the connection hole.

[0008] Further, the support assembly includes a plurality of connecting plates. All the connecting plates are fixedly connected to the side of the second mounting plate close to the first mounting plate and away from the second connection assembly. A connecting rod is rotatably connected between adjacent two connecting plates through a rotating shaft. The other ends of all the connecting rods are fixedly connected to the end of the first mounting plate away from the first connection assembly.

[0009] Further, the first connection assembly includes four equally spaced first connection blocks and two first connection shafts. The adjacent sides of the two outermost first connection blocks are respectively fixedly connected to the two first connection shafts. The other ends of the two first connection shafts are respectively fixedly connected to the other two first connection blocks. The two first connection shafts are respectively connected to the two outer shock absorption components.

[0010] Further, the second connection assembly includes four second connection blocks. A second connection shaft is fixedly connected between adjacent two second connection blocks. The three second connection shafts are respectively connected to the three shock absorption components.

[0011] Further, the shock absorption component includes a shock absorption spring and two connecting pieces. The two ends of the shock absorption spring are respectively fixedly connected to the two connecting pieces. A telescopic assembly is connected between the two connecting pieces. The telescopic assembly is located inside the shock absorption spring. A flipping assembly is connected to the sides of the two connecting pieces away from each other. The three flipping assemblies close to the second mounting plate are respectively connected to the three second connection shafts. The three flipping assemblies close to the first mounting plate are respectively connected to the two first connection shafts and the connection hole.

[0012] Further, the telescopic assembly includes a sleeve, a telescopic rod and a piston. The piston is located inside the sleeve and is slidably connected to the inner wall of the sleeve. The side of the piston away from the sleeve is fixedly connected to the telescopic rod. The end of the telescopic rod away from the piston penetrates through the sleeve and is slidably connected to the sleeve. The ends of the sleeve and the telescopic rod away from each other are respectively fixedly connected to the two connecting pieces. The shock absorption spring is sleeved on the sleeve and the telescopic rod.

[0013] Further, the flipping assembly includes a flipping block and a flipping rod. The flipping rod is fixedly connected to the side of the connecting piece away from the shock-absorbing spring. The flipping block is fixedly connected to the end of the flipping rod away from the connecting piece. A rotating hole perpendicular to the flipping rod is formed through the side wall of the flipping block. The rotating hole sleeves the adjacent first connecting shaft or the second connecting shaft and is rotatably connected thereto. The flipping block located in the connecting hole is rotatably connected to the connecting hole through a rotating shaft.

[0014] Compared with the prior art, the present utility model has the following beneficial effects:

[0015] For this kind of steering wheel structure with shock-absorbing effect, through the mutual cooperation of the shock-absorbing assembly and the supporting assembly, it plays a shock-absorbing effect on the bottom steering wheel. At the same time, the connection between the shock-absorbing assembly in the middle and the connecting hole in the middle makes the shock-absorbing assembly form an inclined angle between the first mounting plate and the second mounting plate, thereby providing a certain lateral shock-absorbing effect, so as to perform lateral shock absorption on the connection position between the steering wheel structure and the handling trolley and reduce the damage caused by lateral force. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall appearance connection structure of the present utility model;

[0017] Figure 2 It is a schematic diagram of the connection structure of the first mounting plate of the present utility model;

[0018] Figure 3 It is a schematic diagram of the connection structure of the second mounting plate of the present utility model;

[0019] Figure 4 It is a schematic diagram of the connection structure of the shock-absorbing assembly of the present utility model;

[0020] Figure 5 It is a schematic cross-sectional view of the connection structure of the telescopic assembly of the present utility model.

[0021] In the figure: 1. First mounting plate; 2. Second mounting plate; 3. Connecting plate; 4. Connecting rod; 5. First connecting block; 6. First connecting shaft; 7. Second connecting block; 8. Second connecting shaft; 9. Shock-absorbing spring; 10. Connecting piece; 11. Sleeve; 12. Telescopic rod; 13. Piston; 14. Flipping block; 15. Flipping rod; 16. Steering wheel body; 101. Connecting hole; 102. Rotating hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0023] Please refer to Figure 1 - Figure 5, A steering wheel structure with shock absorption effect, including a first mounting plate 1 and a second mounting plate 2 arranged below the first mounting plate 1. A steering wheel body 16 is installed below the second mounting plate 2. One end of the first mounting plate 1 close to the second mounting plate 2 is connected with a support assembly, and the other side of the support assembly is connected with the second mounting plate 2. The first mounting plate 1 and the second mounting plate 2 on the side far from the support assembly are respectively connected with a first connection assembly and a second connection assembly. The second connection assembly is connected with three shock absorption components. The other ends of the two shock absorption components located on the outside are connected with the first connection assembly. A connection hole 101 is provided between the first connection assembly and the support assembly on the first mounting plate 1. The other end of the shock absorption component located in the middle is connected with the connection hole 101.

[0024] As Figure 1 - Figure 5 shown, a steering wheel structure with shock absorption effect in the present utility model is similar to the existing steering wheel structure with shock absorption effect. For example, a steerable shock absorption mechanism for an AGV disclosed in a patent with publication number CN218228559U. The main improvement point of the present utility model is to provide a certain lateral shock absorption effect for the steering wheel and reduce the damage caused by lateral force. As Figures 1 to 5 shown, when the steering wheel structure with shock absorption effect in the present utility model is in use, when the steering wheel body 16 vibrates, the two shock absorption components on the outside provide a shock absorption effect in the vertical direction between the first mounting plate 1 and the second mounting plate 2. At the same time, when the shock absorption component in the middle is connected to the connection hole 101 at the middle position, a certain inclination angle will be generated. When the steering wheel vibrates, the inclined shock absorption component is stressed and will form an inclined force between the first mounting plate 1 and the second mounting plate 2. According to the Pythagorean theorem, the inclined force can be decomposed into a part of the vertical force and a part of the lateral force, so as to provide a certain lateral shock absorption force while providing the vertical shock absorption force, thereby reducing the lateral force between the first mounting plate 1 and the second mounting plate 2 and reducing the lateral force damage, and further improving the shock absorption effect.

[0025] As Figure 1 - Figure 3 shown, the support assembly includes several connecting plates 3. Several connecting plates 3 are all fixedly connected to the side of the second mounting plate 2 close to the first mounting plate 1 and far from the second connection assembly. Connecting rods 4 are rotatably connected between adjacent two connecting plates 3 through rotating shafts. The other ends of several connecting rods 4 are all fixedly connected to the end of the first mounting plate 1 far from the first connection assembly. When the three shock absorption components are stressed and contract or extend, the entire second mounting plate 2 and the steering wheel body 16 at the bottom will be turned at a certain angle below the multiple connecting rods 4 through the multiple connecting plates 3, and cooperate with the shock absorption components to make the bottom steering wheel structure obtain a buffering and shock absorption effect.

[0026] As Figure 1 -Figure 3 As shown, the first connection component includes four first connection blocks 5 evenly distributed at equal intervals and two first connection shafts 6. One side of the two outermost first connection blocks 5 adjacent to each other is fixedly connected to the two first connection shafts 6 respectively, and the other ends of the two first connection shafts 6 are fixedly connected to the other two first connection blocks 5 respectively. The two first connection shafts 6 are respectively connected to the two outer shock absorption components. During the shock absorption movement of the second mounting plate 2, due to the connection between the connecting plate 3 and the connecting rod 4, a certain angular rotation will occur. At this time, the shock absorption components will form an angular change between the first connection component and the second connection component. At this time, the top of the shock absorption component is connected to the first connection shaft 6, and can rotate while the angle changes, thereby forming a shock absorption effect, wherein the ends of the two outer shock absorption components are respectively connected and rotated with the two first connection shafts 6.

[0027] As Figure 1 - Figure 3 shown, the second connection component includes four second connection blocks 7, and second connection shafts 8 are fixedly connected between every two adjacent second connection blocks 7. The three second connection shafts 8 are respectively connected to the three shock absorption components. Similar to the principle of the first connection component, when the shock absorption component is stressed and an angular change occurs, it rotates in connection with the second connection shaft 8, and at the same time, the bottoms of the three shock absorption components are connected to the three second connection shafts 8.

[0028] As Figure 1 - Figure 5 shown, the shock absorption component includes a shock absorption spring 9 and two connection pieces 10. The two ends of the shock absorption spring 9 are respectively fixedly connected to the two connection pieces 10. A telescopic component is connected between the two connection pieces 10, and the telescopic component is located inside the shock absorption spring 9. Flip components are connected to the sides of the two connection pieces 10 away from each other. The three flip components close to the second mounting plate 2 are respectively connected to the three second connection shafts 8, and the three flip components close to the first mounting plate 1 are respectively connected to the two first connection shafts 6 and the connection hole 101. The shock absorption spring 9 is connected to the upper and lower two connection pieces 10, and is connected and rotated with the first connection shaft 6 and the second connection shaft 8 through the flip component. At the same time, during the compression or elongation of the shock absorption spring 9 under stress, through the inner telescopic component, the shock absorption spring 9 will not produce a torsional deformation, making the shock absorption and telescoping more stable.

[0029] As Figure 4 and Figure 5As shown, the telescopic component includes a sleeve 11, a telescopic rod 12 and a piston 13. The piston 13 is located inside the sleeve 11 and is slidably connected to the inner wall of the sleeve 11. One side of the piston 13 away from the sleeve 11 is fixedly connected to the telescopic rod 12. One end of the telescopic rod 12 away from the piston 13 penetrates through the sleeve 11 and is slidably connected to the sleeve 11. The ends of the sleeve 11 and the telescopic rod 12 away from each other are respectively fixedly connected to two connecting pieces 10. The shock-absorbing spring 9 is sleeved on the sleeve 11 and the telescopic rod 12. When the shock-absorbing spring 9 expands and contracts, the telescopic rod 12 telescopically moves inside the sleeve 11. At the same time, the sliding of the piston 13 inside the sleeve 11 can prevent the connection between the telescopic rod 12 and the sleeve 11 from falling off, improving the stability of the telescopic structure.

[0030] As Figure 1 - Figure 5 As shown, the flipping component includes a flipping block 14 and a flipping rod 15. The flipping rod 15 is fixedly connected to the side of the connecting piece 10 away from the shock-absorbing spring 9. The flipping block 14 is fixedly connected to one end of the flipping rod 15 away from the connecting piece 10. A rotating hole 102 perpendicular to the flipping rod 15 is formed through the side wall of the flipping block 14. The rotating hole 102 is sleeved on the adjacent first connecting shaft 6 or the second connecting shaft 8 and is rotatably connected to it. The flipping block 14 located in the connecting hole 101 is rotatably connected to the connecting hole 101 through a rotating shaft. When the shock-absorbing spring 9 expands and contracts, the ends of the first mounting plate 1 and the second mounting plate 2 close to the shock-absorbing spring 9 will approach or move away from each other. At this time, the flipping blocks 14 on the first connecting shaft 6 and the second connecting shaft 8 will follow the inclination of the shock-absorbing component to flip by a certain angle. At the same time, the flipping block 14 located in the connecting hole 101 also flips by an angle in the connecting hole 101 through the rotating shaft.

[0031] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention.

Claims

1. A steering wheel structure with a shock-absorbing effect, comprising a first mounting plate (1) and a second mounting plate (2) arranged below the first mounting plate (1), and a steering wheel body (16) is mounted below the second mounting plate (2), characterized in that: One end of the first mounting plate (1) close to the second mounting plate (2) is connected with a support assembly, the other side of the support assembly is connected with the second mounting plate (2), the first mounting plate (1) and the second mounting plate (2) are respectively connected with a first connection assembly and a second connection assembly on the side far from the support assembly, the second connection assembly is connected with three shock absorption assemblies, the other ends of the two shock absorption assemblies located on the outside are connected with the first connection assembly, and a connection hole (101) is arranged on the first mounting plate (1) between the first connection assembly and the support assembly, and the other end of the shock absorption assembly located in the middle is connected with the connection hole (101).

2. The steering wheel structure with shock absorption effect according to claim 1, characterized in that: The support assembly includes a plurality of connecting plates (3), the plurality of connecting plates (3) are all on the side of the second mounting plate (2) close to the first mounting plate (1) and are fixedly connected to the end far from the second connection assembly, and a connecting rod (4) is rotatably connected between adjacent two connecting plates (3) through a rotating shaft, and the other ends of the plurality of connecting rods (4) are fixedly connected to the end of the first mounting plate (1) far from the first connection assembly.

3. A steering wheel structure with a shock absorption effect according to claim 1 or 2, characterized in that: The first connection assembly includes four equally spaced first connection blocks (5) and two first connection shafts (6), the adjacent sides of the two outermost first connection blocks (5) are respectively fixedly connected to the two first connection shafts (6), the other ends of the two first connection shafts (6) are respectively fixedly connected to the other two first connection blocks (5), and the two first connection shafts (6) are respectively connected with the two outermost shock absorption assemblies.

4. The steering wheel structure with shock absorption effect according to claim 3, characterized in that: The second connection assembly includes four second connection blocks (7), and a second connection shaft (8) is fixedly connected between adjacent two second connection blocks (7), and the three second connection shafts (8) are respectively connected with the three shock absorption assemblies.

5. A steering wheel structure with a shock-absorbing effect according to claim 4, characterized in that: The shock absorption assembly includes a shock absorption spring (9) and two connection pieces (10), the two ends of the shock absorption spring (9) are respectively fixedly connected to the two connection pieces (10), a telescopic assembly is connected between the two connection pieces (10), the telescopic assembly is located inside the shock absorption spring (9), and a flipping assembly is connected to the mutually remote sides of the two connection pieces (10), the three flipping assemblies close to the second mounting plate (2) are respectively connected with the three second connection shafts (8), and the three flipping assemblies close to the first mounting plate (1) are respectively connected with the two first connection shafts (6) and the connection hole (101).

6. The steering wheel structure with shock absorption effect according to claim 5, characterized in that: The telescopic assembly includes a sleeve (11), a telescopic rod (12) and a piston (13), the piston (13) is located inside the sleeve (11) and is slidably connected to the inner wall of the sleeve (11), the side of the piston (13) far from the sleeve (11) is fixedly connected to the telescopic rod (12), the end of the telescopic rod (12) far from the piston (13) penetrates through the sleeve (11) and is slidably connected to the sleeve (11), the mutually remote ends of the sleeve (11) and the telescopic rod (12) are respectively fixedly connected to the two connection pieces (10), and the shock absorption spring (9) is sleeved on the sleeve (11) and the telescopic rod (12).

7. A steering wheel structure with shock absorption effect according to claim 5 or 6, characterized in that: The flipping component includes a flipping block (14) and a flipping rod (15). The flipping rod (15) is fixedly connected to the side of the connecting piece (10) away from the shock-absorbing spring (9). The flipping block (14) is fixedly connected to the end of the flipping rod (15) away from the connecting piece (10). A rotating hole (102) perpendicular to the flipping rod (15) is formed through the side wall of the flipping block (14). The rotating hole (102) sleeves the adjacent first connecting shaft (6) or the second connecting shaft (8) and is rotatably connected thereto. The flipping block (14) located in the connecting hole (101) is rotatably connected to the connecting hole (101) through a rotating shaft.

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