Self-lubricating polyurethane automobile damping block
By setting fixed grooves, U-shaped plates, lubrication holes and drive components in the polyurethane shock-absorbing block, and using gas pressure to automatically extrude grease, the problem of regular grease addition to the polyurethane shock-absorbing block is solved, the self-lubricating effect is achieved, and the maintenance convenience is improved.
Patent Information
- Application Number
- CN202421837918.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-31
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2034-07-31
AI Technical Summary
Existing polyurethane automobile shock absorbers require regular addition of grease to the interior, which makes disassembly and maintenance inconvenient.
A self-lubricating polyurethane automobile shock absorber was designed. By setting a fixing groove, a U-shaped plate, a lubrication hole, a channel assembly and a driving assembly in the shock absorber, the gas pressure generated by the generating assembly was used to automatically extrude the grease, thereby realizing the self-lubricating function.
It achieves a self-lubricating effect without manual maintenance, improving the practicality and maintenance convenience of the device.
Smart Images

Figure CN223318325U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of automobile shock-absorbing blocks, and in particular relates to a self-lubricating polyurethane automobile shock-absorbing block. Background Art
[0002] Polyurethane automotive shock absorbers are a type of shock-absorbing element widely used in automotive suspension systems and are primarily made of polyurethane material. They possess excellent elasticity and resistance to compression deformation, effectively absorbing vibrations and shocks generated during vehicle travel, enhancing ride comfort and driving stability. Compared to traditional rubber shock absorbers, polyurethane shock absorbers have superior wear and aging resistance, as well as a wider operating temperature range. With the trend toward lightweight vehicles, polyurethane shock absorbers are increasingly favored by automakers due to their light weight, simple structure, and easy installation. At the same time, they can also reduce noise during vehicle travel, improve NVH (noise, vibration, and harshness) performance, and provide drivers with a quieter driving experience. In the development of my country's automotive industry, the application prospects of polyurethane automotive shock absorbers are very broad.
[0003] In the prior art, polyurethane automobile shock absorbers are installed inside the car, and grease needs to be added to the shock absorbers regularly to reduce the friction between the shock absorbers and automobile parts. The shock absorbers are usually installed inside the car, which is inconvenient to disassemble and causes inconvenience in maintenance. Utility Model Content
[0004] The purpose of the utility model is to provide a self-lubricating polyurethane automobile shock-absorbing block, which aims to solve the problem in the prior art that the polyurethane automobile shock-absorbing block is installed inside the car, and grease needs to be added to the shock-absorbing block regularly to reduce the friction between the shock-absorbing block and the automobile parts. The shock-absorbing block is usually installed inside the car, and it is inconvenient to disassemble it, resulting in inconvenient maintenance.
[0005] To achieve the above objectives, the present invention provides the following technical solutions:
[0006] A self-lubricating polyurethane automobile shock-absorbing block, comprising:
[0007] A polyurethane shock-absorbing block body, wherein a fixing groove is provided in the polyurethane shock-absorbing block body;
[0008] A U-shaped plate, the U-shaped plate being fixedly connected to the inner wall of the fixing groove;
[0009] Lubrication holes, of which a plurality are provided, and the plurality of lubrication holes are all opened on the circumferential inner wall of the U-shaped plate;
[0010] The channel components are provided in two groups, and both groups of channel components are provided on the polyurethane shock-absorbing block body;
[0011] A bottom box, the bottom box being fixedly connected to the lower end of the polyurethane shock-absorbing block body; and
[0012] A drive assembly is arranged in the bottom box.
[0013] As a preferred solution of the present invention, each group of the channel components includes a delivery hole and a push groove, the delivery hole is opened in the polyurethane shock-absorbing block body, the delivery hole is connected to the fixed groove, the push groove is opened at the lower end of the polyurethane shock-absorbing block body, and the push groove is connected to the delivery hole.
[0014] As a preferred solution of the present utility model, the driving assembly includes a pushing plate, a pushing block and a reaction groove. There are two pushing blocks. The pushing plate is slidably connected to the bottom box. The two pushing blocks are both opened at the upper end of the pushing plate. The two pushing plates are respectively matched with two pushing grooves, and the reaction groove is opened at the lower end of the pushing plate.
[0015] As a preferred solution of the present invention, a generating assembly is provided in the reaction tank, and the generating assembly includes limestone and hydrochloric acid. The limestone and hydrochloric acid react slowly to generate carbon dioxide gas.
[0016] As a preferred solution of the present invention, lubricating grease is stored on the upper side of the bottom box.
[0017] As a preferred solution of the present invention, the inner diameter of the polyurethane shock-absorbing block body is 30 mm.
[0018] Compared with the prior art, the beneficial effects of the present invention are:
[0019] 1. In this solution, by using this device, the push plate pushes the grease on the upper side of the bottom box and squeezes it into the U-shaped plate through the push groove and the delivery hole, and the grease in the U-shaped plate is squeezed out through the lubrication hole to achieve self-lubrication. It does not require manual maintenance and is highly practical.
[0020] 2. In this solution, the generating assembly slowly generates gas during operation, the pressure in the reaction tank increases, and the pressure pushes the push plate upward, squeezing the grease into the U-shaped plate. The grease filled in the U-shaped plate is squeezed out from the lubrication hole to achieve self-lubrication. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:
[0022] Figure 1 It is a cross-sectional view of the utility model;
[0023] Figure 2 This is a first-perspective stereogram of the present invention;
[0024] Figure 3 This is a stereoscopic diagram from a second viewing angle of the present invention.
[0025] In the figure: 1. Polyurethane shock-absorbing block body; 2. Fixing groove; 3. U-shaped plate; 4. Lubrication hole; 5. Conveying hole; 6. Pushing groove; 7. Bottom box; 8. Pushing plate; 9. Pushing block; 10. Reaction tank. DETAILED DESCRIPTION
[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0027] Example
[0028] See also Figure 1-Figure 3 , the utility model provides the following technical solutions:
[0029] A self-lubricating polyurethane automobile shock-absorbing block, comprising:
[0030] A polyurethane shock-absorbing block body 1 is provided with a fixing groove 2;
[0031] A U-shaped plate 3 is fixedly connected to the inner wall of the fixing groove 2;
[0032] Lubrication holes 4, of which a plurality of lubrication holes 4 are provided, and the plurality of lubrication holes 4 are all opened on the circumferential inner wall of the U-shaped plate 3;
[0033] Channel components, which are provided in two groups, both of which are provided on the polyurethane shock-absorbing block body 1;
[0034] A bottom box 7, which is fixedly connected to the lower end of the polyurethane shock-absorbing block body 1; and
[0035] The driving assembly is arranged in the bottom box 7.
[0036] In a specific embodiment of the present utility model, a fixing groove 2 is provided in the main body 1 of the polyurethane shock-absorbing block for installing a U-shaped plate 3. A plurality of lubrication holes 4 are provided on the inner wall of the U-shaped plate 3. The channel component is connected to the fixing groove 2. Grease is provided in the channel component and the U-shaped plate 3. The component slowly increases the pressure during operation, pushing the push plate 8 to slide upward in the bottom box 7. The push plate 8 pushes the grease on the upper side of the bottom box 7 to be squeezed and enter the U-shaped plate 3 through the push groove 6 and the delivery hole 5, and the grease in the U-shaped plate 3 is squeezed out through the lubrication hole 4 to achieve self-lubrication. No manual maintenance is required, and the practicability is high.
[0037] For details, please refer to Figure 1-Figure 3 Each set of channel components includes a conveying hole 5 and a pushing groove 6. The conveying hole 5 is opened in the polyurethane shock-absorbing block body 1, and the conveying hole 5 is connected with the fixing groove 2. The pushing groove 6 is opened at the lower end of the polyurethane shock-absorbing block body 1, and the pushing groove 6 is connected with the conveying hole 5.
[0038] In this embodiment, the channel assembly includes a push groove 6 and a delivery hole 5, and the push groove 6 and the delivery hole 5 are used for grease to pass through.
[0039] For details, please refer to Figure 1-Figure 3 The driving assembly includes a pushing plate 8, a pushing block 9 and a reaction groove 10. There are two pushing blocks 9. The pushing plate 8 is slidably connected to the bottom box 7. The two pushing blocks 9 are both opened at the upper end of the pushing plate 8. The two pushing plates 8 are respectively matched with the two pushing grooves 6. The reaction groove 10 is opened at the lower end of the pushing plate 8.
[0040] In this embodiment, the generating assembly slowly generates gas during operation, the pressure in the reaction tank 10 increases, and the pressure pushes the push plate 8 upward, squeezing the grease into the U-shaped plate 3. The grease filled in the U-shaped plate 3 is squeezed out from the lubrication hole 4, achieving self-lubrication.
[0041] For details, please refer to Figure 1-Figure 3 A generating assembly is provided in the reaction tank 10, and the generating assembly includes limestone and hydrochloric acid. The limestone and hydrochloric acid react slowly to produce carbon dioxide gas.
[0042] In this embodiment, the generating assembly is used to slowly increase the pressure so that the grease is slowly squeezed out from the lubrication hole 4.
[0043] For details, please refer to Figure 1-Figure 3 , grease is stored in the upper side of the bottom box 7.
[0044] In this embodiment, the lubricating grease is used to lubricate the automobile parts connected to the polyurethane shock-absorbing block body 1.
[0045] For details, please refer to Figure 1-Figure 3 The inner diameter of the polyurethane shock-absorbing block body 1 is 30 mm.
[0046] In this embodiment, the inner diameter of the polyurethane shock-absorbing block body 1 is 30 mm.
[0047] The working principle and usage process of the utility model: When using the device, first connect the polyurethane shock-absorbing block body 1 with the automobile parts, install the device at the position where it needs to be used in the car, and slowly increase the pressure of the component during operation to push the push plate 8 to slide upward in the bottom box 7. The push plate 8 pushes the grease on the upper side of the bottom box 7 to be squeezed and enter the U-shaped plate 3 through the push groove 6 and the delivery hole 5, and the grease in the U-shaped plate 3 is squeezed out through the lubrication hole 4; by using the device, the push plate 8 pushes the grease on the upper side of the bottom box 7 to be squeezed and enter the U-shaped plate 3 through the push groove 6 and the delivery hole 5, and the grease in the U-shaped plate 3 is squeezed out through the lubrication hole 4, thereby realizing the effect of self-lubrication, requiring no manual maintenance, and having high practicality.
[0048] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.
Claims
1. A self-lubricating polyurethane automobile shock absorber, characterized in that: include: A polyurethane shock-absorbing block main body (1), wherein a fixing groove (2) is provided in the polyurethane shock-absorbing block main body (1); A U-shaped plate (3), wherein the U-shaped plate (3) is fixedly connected to the inner wall of the fixing groove (2); Lubrication holes (4), which are provided in plurality, and the plurality of lubrication holes (4) are all opened on the circumferential inner wall of the U-shaped plate (3); Channel components are provided in two groups, and both groups of channel components are provided on the polyurethane shock-absorbing block body (1); A bottom box (7), the bottom box (7) being fixedly connected to the lower end of the polyurethane shock-absorbing block body (1); and A drive assembly is arranged in the bottom box (7).
2. The self-lubricating polyurethane automobile shock absorber according to claim 1, characterized in that: Each group of the channel components comprises a delivery hole (5) and a push groove (6); the delivery hole (5) is provided in the polyurethane shock-absorbing block body (1); the delivery hole (5) is communicated with the fixing groove (2); the push groove (6) is provided at the lower end of the polyurethane shock-absorbing block body (1); the push groove (6) is communicated with the delivery hole (5).
3. The self-lubricating polyurethane automobile shock absorber according to claim 2, characterized in that: The driving assembly comprises a pushing plate (8), a pushing block (9) and a reaction groove (10), wherein two pushing blocks (9) are provided, the pushing plate (8) is slidably connected to the bottom box (7), the two pushing blocks (9) are both opened at the upper end of the pushing plate (8), the two pushing plates (8) are matched with the two pushing grooves (6) respectively, and the reaction groove (10) is opened at the lower end of the pushing plate (8).
4. The self-lubricating polyurethane automobile shock absorber according to claim 3, characterized in that: A generating assembly is provided in the reaction tank (10), and the generating assembly comprises limestone and hydrochloric acid, and the limestone and hydrochloric acid react slowly to generate carbon dioxide gas.
5. The self-lubricating polyurethane automobile shock absorber according to claim 4, characterized in that: Lubricating grease is stored on the upper inner side of the bottom box (7).
6. The self-lubricating polyurethane automobile shock absorber according to claim 5, characterized in that: The inner diameter of the polyurethane shock-absorbing block body (1) is 30 mm.