Hydraulic shock absorber for three-wheeled van with bearing type chassis
Through the design of hydraulic shock absorber on the tricycle of the tricycle, using the control component to control the circulation path of lubricating oil, the problem of poor existing shock absorber cushioning effect is solved, and more efficient shock absorption effects and more comfortable vehicles are achieved. Driving experience.
Patent Information
- Application Number
- CN202421089859.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-17
- Publication Date
- 2025-01-24
- Estimated Expiration
- 2034-05-17
AI Technical Summary
When the existing tricycle caravan shock absorbers face bumps, the telescopic rod presses into the sleeve and rebounds too quickly, resulting in poor cushioning effect and affecting the comfort of the vehicle.
It adopts the design of hydraulic shock absorber, including aluminum cylinder, piston body and handle tube. The circulation path of lubricating oil is controlled by the regulating component, and the pressing and rebound speed of the handle tube are adjusted to improve the shock absorption effect.
Effectively slowed down the pressure of the handle and rebounding, improved the shock absorption effect, and improved the comfort of the tricycle in the process of traveling.
Smart Images
Figure CN222391842U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of shock absorbers, and in particular to a hydraulic shock absorber for a load-bearing chassis three-wheeled covered car. Background Art
[0002] A three-wheeled covered wagon is a three-wheeled wagon with a tarpaulin or a canopy frame added to provide sunshade and rain protection. A three-wheeled covered wagon with a load-bearing chassis is a special three-wheeled covered wagon design, which features a load-bearing chassis structure. This structure makes the body and chassis form a whole, improving the stability and carrying capacity of the vehicle. Three-wheeled covered wagons with a load-bearing chassis are usually used for cargo transportation or personnel travel, especially in rural areas or suburban areas with relatively poor road conditions.
[0003] In order to improve the comfort of a three-wheeled covered car with a load-carrying chassis, a shock absorber is generally installed on the three-wheeled covered car. At present, a shock absorber for a three-wheeled covered car in the related art includes: a sleeve, a telescopic rod and a spring. A mounting plate is fixedly arranged on the sleeve, and the mounting plate is used to install the wheel; one end of the telescopic rod is slidably arranged in the sleeve, and the other end is fixedly arranged on the fixing plate, and the fixing plate is used to connect with the vehicle body. The spring is sleeved on the sleeve and fixed between the mounting plate and the fixing plate. When the three-wheeled covered car encounters bumps, the telescopic rod will slide in the sleeve, and the spring will be squeezed during this process, thereby achieving a buffering effect.
[0004] However, when relying solely on the spring, the speed at which the telescopic rod is pressed into the sleeve and rebounds out of the sleeve is still relatively fast, so that the buffering effect of the bumpy impact force is relatively poor, so that the comfort of the three-wheeled caravan is relatively poor during the travel process. Utility Model Content
[0005] In order to improve the problems existing in the above-mentioned technology, the present application provides a hydraulic shock absorber for a load-bearing chassis three-wheeled covered car.
[0006] The present application provides a hydraulic shock absorber for a load-bearing chassis three-wheeled covered car, which adopts the following technical solution:
[0007] A hydraulic shock absorber for a load-bearing chassis three-wheeled covered car, comprising: an aluminum cylinder, a piston body and a handle tube, one end of the handle tube being slidably arranged in the aluminum cylinder, the piston body comprising: a piston rod, one end of the piston rod being arranged in the aluminum cylinder and the other end being arranged in the handle tube, an oil through hole being provided on the piston rod, an oil inlet hole and an oil return hole being connected to the oil through hole being provided on the piston rod, and a regulating component being provided between the piston rod and the handle tube.
[0008] By adopting the above technical scheme, when the handle tube is pressed into the aluminum cylinder, the regulating component will open the communication path between the aluminum cylinder and the inside of the handle tube, so that the lubricating oil in the aluminum cylinder can continuously enter the handle tube, thereby effectively slowing down the speed at which the handle tube is pressed into the aluminum cylinder; when the handle tube rebounds out of the aluminum cylinder, the regulating component will close the communication path between the aluminum cylinder and the inside of the handle tube, so that the lubricating oil in the handle tube can only flow into the oil through hole through the oil return hole, and then flow into the aluminum cylinder through the oil inlet hole, thereby effectively slowing down the rebound speed of the handle tube out of the aluminum cylinder, that is, effectively improving the shock absorption effect, thereby improving the comfort of the three-wheeled covered car during travel.
[0009] Optionally, the regulating component includes: a spacer sleeve and a damping valve plate, the inner wall of the handle tube is provided with a first step groove and a second step groove, the spacer sleeve is fixed in the first step groove, and the piston rod is passed through the spacer sleeve, the damping valve plate is slidably disposed in the second step groove and sleeved on the piston rod, and the damping valve plate is provided with a plurality of notches.
[0010] By adopting the above technical solution, when the handle tube is pressed into the aluminum cylinder, the handle tube and the spacer sleeve will squeeze the lubricating oil in the aluminum cylinder. During this process, the lubricating oil passes through the gap between the spacer sleeve and the piston rod, and creates a thrust on the damping valve plate, so that the damping valve plate slides away from the spacer sleeve, thereby generating a gap between the damping valve plate and the spacer sleeve; at this time, the lubricating oil can flow into the handle tube through the notch on the damping valve plate, thereby effectively slowing down the speed at which the handle tube is pressed into the aluminum cylinder.
[0011] Optionally, the piston body further comprises: a piston block, the inner wall of the handle tube is provided with a limiting ring groove, the piston block is slidably disposed in the limiting ring groove, and one end of the piston rod located in the handle tube is fixedly connected to the piston block.
[0012] By adopting the above technical solution, the piston block can limit the handle tube so that the handle tube can stably slide in the aluminum cylinder and is not easy to completely slide out of the aluminum cylinder.
[0013] Optionally, a pressing spring is arranged between the piston block and the damping valve plate.
[0014] By adopting the above technical solution, when the handle tube rebounds out of the aluminum cylinder, the damping valve plate can be pressed against the spacer sleeve under the combined action of the thrust of the lubricating oil and the elastic force of the pressing spring, so that the lubricating oil (most of it) in the handle tube can only enter the oil through hole from the oil return hole.
[0015] Optionally, a fixed ring groove is provided on the piston block, and a sealing ring is arranged in the fixed ring groove.
[0016] By adopting the above technical solution, the sealing ring can improve the sealing between the piston block and the inner wall of the handle tube.
[0017] Optionally, a fixing bolt is detachably provided between the aluminum cylinder and the piston rod.
[0018] By adopting the above technical solution, when the piston body needs to be disassembled, the fixing bolt can be screwed until the fixing bolt is disengaged from the oil through hole, thereby facilitating the replacement of the piston body.
[0019] Optionally, a sealing ring groove is formed on the inner wall of the aluminum cylinder, and an oil seal ring is fixedly arranged in the sealing ring groove, and the handle tube passes through the oil seal ring.
[0020] By adopting the above technical solution, the oil seal ring can improve the sealing between the handle tube and the aluminum cylinder, so that the lubricating oil is not easy to leak from between the handle tube and the aluminum cylinder.
[0021] Optionally, there is a gap between the damping valve plate and the inner wall of the second step groove.
[0022] By adopting the above technical solution, the role of the gap is to prevent the damping valve plate from being stuck in the second step groove during movement.
[0023] In summary, the present application includes at least one of the following beneficial effects:
[0024] 1. When the handle tube rebounds to the outside of the aluminum tube, the regulating component will close the communication path between the aluminum tube and the inside of the handle tube, so that the lubricating oil in the handle tube can only flow into the oil hole through the oil return hole, and then flow into the aluminum tube from the oil inlet hole, thereby effectively slowing down the rebound speed of the handle tube to the outside of the aluminum tube, that is, effectively improving the shock absorption effect, thereby improving the comfort of the three-wheeled covered car during travel.
[0025] 2. The piston block can limit the handle tube so that the handle tube can slide stably in the aluminum tube and is not easy to completely slide out of the aluminum tube.
[0026] 3. The oil seal ring can improve the sealing between the handle tube and the aluminum cylinder, so that the lubricating oil is not easy to leak from between the handle tube and the aluminum cylinder. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 is a schematic diagram of the structure according to an embodiment of the present application;
[0028] Figure 2 is along Figure 1 A schematic cross-sectional view taken along the cutting line AA in FIG.
[0029] Figure 3 yes Figure 2 A schematic partial enlarged view of part B;
[0030] Figure 4 It is a schematic structural diagram of the damping valve plate.
[0031] In the figure: 1. aluminum cylinder; 2. piston body; 21. piston rod; 211. oil through hole; 212. oil inlet hole; 213. oil return hole; 22. piston block; 221. fixing ring groove; 2211. sealing ring; 3. handle tube; 31. first step groove; 32. second step groove; 33. limiting ring groove; 34. sealing ring groove; 341. oil seal ring; 4. regulating assembly; 41. spacer; 42. damping valve plate; 421. notch; 5. tightening spring; 6. fixing bolt. DETAILED DESCRIPTION
[0032] An embodiment of the present application provides a hydraulic shock absorber for a load-bearing chassis three-wheeled covered car.
[0033] See also Figure 1 and Figure 2 A hydraulic shock absorber for a load-bearing chassis three-wheeled covered car includes: an aluminum cylinder 1, a piston body 2 and a handle tube 3. One end of the handle tube 3 is slidably arranged in the aluminum cylinder 1, and the other end extends out of the aluminum cylinder 1. The aluminum cylinder 1 and the handle tube 3 are both filled with lubricating oil. In actual application, the wheel is installed on the aluminum cylinder 1.
[0034] See also Figure 2 Furthermore, a sealing ring groove 34 is formed on the inner wall of one end of the aluminum cylinder 1 close to the opening, and an oil seal ring 341 is fixedly arranged in the sealing ring groove 34. The handle tube 3 is penetrated by the oil seal ring 341, and the handle tube 3 and the oil seal ring 341 are tightly pressed against each other. In the embodiment of the present application, the oil seal ring 341 can be made of rubber or other materials. The oil seal ring 341 can improve the sealing between the handle tube 3 and the aluminum cylinder 1, so that the lubricating oil is not easy to leak from between the handle tube 3 and the aluminum cylinder 1.
[0035] See also Figure 2 Furthermore, the piston body 2 includes: a piston rod 21 and a piston block 22. The inner wall of the handle tube 3 is provided with a limiting ring groove 33 along the axial direction. The piston block 22 is slidably arranged in the limiting ring groove 33 and slides along the axial direction of the handle tube 3. One end of the piston rod 21 is arranged in the aluminum cylinder 1, and the other end is arranged in the handle tube 3 and is integrally formed with the piston block 22. The piston block 22 can limit the handle tube 3 so that the handle tube 3 can stably slide in the aluminum cylinder 1, so that it is not easy to completely slide out of the aluminum cylinder 1.
[0036] See also Figure 2 A fixed annular groove 221 is formed on the peripheral wall of the piston block 22 , and a sealing ring 2211 is arranged in the fixed annular groove 221 . The sealing ring 2211 abuts against the inner wall of the handle tube 3 , and the sealing ring 2211 can improve the sealing performance between the piston block 22 and the inner wall of the handle tube 3 .
[0037] See also Figure 2 and Figure 3Furthermore, an oil hole 211 is provided at one end of the piston rod 21 away from the piston block 22, and an oil inlet hole 212 and an oil return hole 213 are provided on the side wall of the piston rod 21. The oil inlet hole 212 is located at the end of the oil return hole 213 away from the piston block 22. A regulating component 4 is provided between the piston rod 21 and the handle tube 3. When the handle tube 3 is pressed into the aluminum cylinder 1, the regulating component 4 will open the communication path between the aluminum cylinder 1 and the inside of the handle tube 3, so that the lubricating oil in the aluminum cylinder 1 can continuously enter the handle tube 3, thereby effectively slowing down the speed at which the handle tube 3 is pressed into the aluminum cylinder 1, so as to improve the shock absorption effect, thereby improving the comfort of the three-wheeled covered car during travel;
[0038] When the handle tube 3 rebounds to the outside of the aluminum cylinder 1, the regulating component 4 will close the communication path between the aluminum cylinder 1 and the inside of the handle tube 3, so that the lubricating oil in the handle tube 3 can only flow into the oil hole 211 through the oil return hole 213, and then flow into the aluminum cylinder 1 through the oil inlet hole 212, thereby effectively slowing down the rebound speed of the handle tube 3 to the outside of the aluminum cylinder 1, so as to improve the shock absorption effect, thereby improving the comfort of the three-wheeled covered car during travel.
[0039] See also Figure 2 Furthermore, a fixing bolt 6 is provided between the aluminum cylinder 1 and the inner wall of the oil hole 211. When the piston body 2 needs to be disassembled, the fixing bolt 6 can be screwed until the fixing bolt 6 is disengaged from the oil hole 211, thereby facilitating the replacement of the piston body 2.
[0040] See also Figure 3 The regulating component 4 includes: a spacer sleeve 41 and a damping valve plate 42. The first step groove 31 and the second step groove 32 are opened at one end of the handle tube 3 located in the aluminum cylinder 1, and the first step groove 31 is located on the side of the second step groove 32 away from the piston block 22. The spacer sleeve 41 is fixed in the first step groove 31. The piston rod 21 passes through the spacer sleeve 41, and there is a gap between the piston rod 21 and the spacer sleeve 41 to facilitate the circulation of lubricating oil. When the handle tube 3 does not move at all, the spacer sleeve 41 just covers the oil return hole 213.
[0041] See also Figure 3 and Figure 4The damping valve plate 42 is slidably arranged in the second step groove 32 and slides along the axial direction of the handle tube 3. The damping valve plate 42 is tightly pressed against the spacer sleeve 41, and a plurality of notches 421 are opened on the peripheral wall of the damping valve plate 42 along the circumferential direction; the damping valve plate 42 is sleeved on the piston rod 21, and no gap is left between the damping valve plate 42 and the piston rod 21. When the handle tube 3 is pressed into the aluminum cylinder 1, the handle tube 3 and the spacer sleeve 41 squeeze the lubricating oil of the aluminum cylinder 1. In this process, the lubricating oil passes through the gap between the spacer sleeve 41 and the piston rod 21, and causes a thrust to the damping valve plate 42, so that the damping valve plate 42 slides in the direction away from the spacer sleeve 41, thereby generating a gap between the damping valve plate 42 and the spacer sleeve 41; at this time, the lubricating oil can flow into the handle tube 3 through the notch 421 on the damping valve plate 42, thereby effectively slowing down the speed at which the handle tube 3 is pressed into the aluminum cylinder 1;
[0042] When the handle tube 3 rebounds to the outside of the aluminum cylinder 1, the damping valve plate 42 is pressed against the spacer sleeve 41 under the thrust of the lubricating oil, so that the lubricating oil (most of it) in the handle tube 3 can only enter the oil hole 211 from the oil return hole 213, and then enter the aluminum cylinder 1 from the oil inlet hole 212, thereby effectively slowing down the rebound speed of the handle tube 3.
[0043] See also Figure 3 Furthermore, there is a gap between the damping valve plate 42 and the inner wall of the second step groove 32, and the function of the gap is to prevent the damping valve plate 42 from being stuck in the second step groove 32 during movement.
[0044] In addition, in the embodiment of the present application, the sliding distance of the damping gasket is about 2 mm.
[0045] See also Figure 2 Furthermore, a clamping spring 5 is provided between the piston block 22 and the damping valve plate 42, and one end of the clamping spring 5 is fixedly connected to the piston block 22, and the other end is pressed against the damping valve plate 42. When the handle tube 3 rebounds out of the aluminum cylinder 1, the damping valve plate 42 can be pressed against the spacer sleeve 41 under the combined action of the thrust of the lubricating oil and the elastic force of the clamping spring 5, so that the lubricating oil (most of it) in the handle tube 3 can only enter the oil through hole 211 from the oil return hole 213.
[0046] The working principle of the hydraulic shock absorber of a load-bearing chassis three-wheeled covered car in the present application when in use is as follows: when the handle tube 3 is pressed into the aluminum cylinder 1, the handle tube 3 and the spacer sleeve 41 will squeeze the lubricating oil of the aluminum cylinder 1. During this process, the lubricating oil passes through the gap between the spacer sleeve 41 and the piston rod 21, and creates a thrust on the damping valve plate 42, so that the damping valve plate 42 slides away from the spacer sleeve 41, thereby generating a gap between the damping valve plate 42 and the spacer sleeve 41; at this time, the lubricating oil can flow into the handle tube 3 through the notch 421 on the damping valve plate 42, thereby effectively slowing down the speed at which the handle tube 3 is pressed into the aluminum cylinder 1.
[0047] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A hydraulic shock absorber for a load-bearing chassis three-wheeled covered car, characterized in that: include: An aluminum cylinder (1), a piston body (2) and a handle tube (3), one end of the handle tube (3) being slidably disposed in the aluminum cylinder (1), the piston body (2) comprising a piston rod (21), one end of the piston rod (21) being disposed in the aluminum cylinder (1) and the other end of the piston rod (21) being disposed in the handle tube (3), an oil through hole (211) being provided on the piston rod (21), and an oil inlet hole (212) and an oil return hole (213) being communicated with the oil through hole (211), and a regulating component (4) being provided between the piston rod (21) and the handle tube (3).
2. The hydraulic shock absorber for a three-wheeled covered vehicle with a load-bearing chassis according to claim 1, characterized in that: The regulating component (4) comprises: a spacer sleeve (41) and a damping valve plate (42); the inner wall of the handle tube (3) is provided with a first step groove (31) and a second step groove (32); the spacer sleeve (41) is fixed in the first step groove (31), and the piston rod (21) is passed through the spacer sleeve (41); the damping valve plate (42) is slidably arranged in the second step groove (32) and sleeved on the piston rod (21); and a plurality of notches (421) are provided on the damping valve plate (42).
3. The hydraulic shock absorber for a three-wheeled covered vehicle with a load-bearing chassis according to claim 2, characterized in that: The piston body (2) further comprises: a piston block (22); a limiting ring groove (33) is provided on the inner wall of the handle tube (3); the piston block (22) is slidably arranged in the limiting ring groove (33); and one end of the piston rod (21) located in the handle tube (3) is fixedly connected to the piston block (22).
4. The hydraulic shock absorber for a three-wheeled covered vehicle with a load-bearing chassis according to claim 3, characterized in that: A pressing spring (5) is arranged between the piston block (22) and the damping valve plate (42).
5. The hydraulic shock absorber for a three-wheeled covered vehicle with a load-bearing chassis according to claim 3, characterized in that: The piston block (22) is provided with a fixed ring groove (221), and a sealing ring (2211) is arranged in the fixed ring groove (221).
6. The hydraulic shock absorber for a three-wheeled covered vehicle with a load-bearing chassis according to claim 1, characterized in that: A fixing bolt (6) is detachably provided between the aluminum cylinder (1) and the piston rod (21).
7. The hydraulic shock absorber for a three-wheeled covered vehicle with a load-bearing chassis according to claim 1, characterized in that: The inner wall of the aluminum cylinder (1) is provided with a sealing ring groove (34), and an oil seal ring (341) is fixedly arranged in the sealing ring groove (34), and the handle tube (3) is penetrated by the oil seal ring (341).
8. The hydraulic shock absorber for a three-wheeled covered vehicle with a load-bearing chassis according to claim 2, characterized in that: There is a gap between the damping valve plate (42) and the inner wall of the second step groove (32).