A guide for a sealed automotive shock absorber

Abstract

The utility model relates to the technical field of guider, provide a sealed type car shock absorber guider, including guider body, the inner wall on the bottom of guider body is fixed with the bush, the inside of bush is established piston rod through slot, the top of guider body is evenly set up with oil channel, the top of guider body is fixed with ring sleeve, the utility model discloses the oil channel and ring sleeve are set up, the equal interval inclined design of oil channel can evenly distribute lubricating oil, promote lubricating efficiency and heat dissipation performance, and the ring sleeve can strengthen the sealing property of guider body top, prevent oil leakage and dust from entering, realized the device has the function of convenient lubrication and strengthens the sealing, improved the durability of this sealed type car shock absorber guider when using.

Description

Technical Field

[0001] This utility model relates to the field of guide technology, and in particular to a guide for a sealed automotive shock absorber. Background Technology

[0002] The shock absorber is a core component of a vehicle's suspension system, and its performance directly affects the vehicle's ride comfort, handling stability, and driving safety. The guide, a critical part of the shock absorber, is mounted on top of the shock absorber cylinder and primarily performs multiple functions, including precisely guiding the piston rod, ensuring its linear motion, preventing oil leakage, and preventing external contaminants from entering the cylinder. Its performance directly impacts the shock absorber's sealing, durability, and operational efficiency.

[0003] To address this, patent CN217234232U discloses a guide for an automotive shock absorber, comprising a guide assembly. A piston rod mounting cylinder is mounted on the lower surface of the guide assembly. A bushing is mounted on the inner wall of the piston rod mounting cylinder. An inner retaining tooth is mounted on the inner side of the bushing. A piston connecting rod is disposed inside the piston rod mounting cylinder. A retaining tooth mounting groove is formed on the outer wall of the piston connecting rod. An outer retaining tooth is mounted on the inner side of the retaining tooth mounting groove. A spring connects the outer retaining tooth to the retaining tooth mounting groove. The bushing is made of DU material and can withstand the impact force during piston connecting rod movement. The inner and outer retaining teeth engage, thereby achieving a tight fit between the piston connecting rod and the guide assembly, thus reducing friction between the piston connecting rod and the bushing.

[0004] Although the aforementioned guide for automotive shock absorbers can reduce friction between the piston rod and bushing during use, lubricating oil can easily overflow upwards through the oil passage, affecting the sealing performance of the top of the guide. Therefore, a sealed guide for automotive shock absorbers needs to be designed. Utility Model Content

[0005] The purpose of this invention is to provide a sealed guide for automotive shock absorbers, which solves the defect of existing automotive shock absorber guides where lubricating oil easily overflows upwards through the oil passage, affecting the sealing performance of the top of the guide.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a sealed automotive shock absorber guide, comprising a guide body;

[0007] A bushing is fixed on the inner wall of the bottom of the guide body, and a piston rod through groove is opened inside the bushing;

[0008] Oil channels are evenly distributed on the top of the guide body;

[0009] The top of the guide body is fixed with a ring, the top of the guide body is provided with a trapezoidal groove, and the bottom of the trapezoidal groove is provided with a connecting groove inside the guide body.

[0010] Furthermore, the central axis of the piston rod through groove and the central axis of the connecting groove are collinear.

[0011] Furthermore, the oil channels are evenly distributed inside the guide body.

[0012] Furthermore, the main view section of the oil passage is designed to be inclined.

[0013] Furthermore, the main view section of the trapezoidal groove is trapezoidal in design.

[0014] Furthermore, the top view cross-sectional area of ​​the trapezoidal groove is larger than the bottom view cross-sectional area of ​​the trapezoidal groove.

[0015] Furthermore, the central axis of the trapezoidal groove and the central axis of the connecting groove are collinear.

[0016] The sealing guide for automotive shock absorbers provided by this utility model has the following advantages:

[0017] By incorporating oil passages and a ring sleeve, the evenly spaced inclined design of the oil passages allows for uniform distribution of lubricating oil, improving lubrication efficiency and heat dissipation. The ring sleeve enhances the sealing of the top of the guide body, preventing oil leakage and dust ingress. This device achieves the functions of easy lubrication and enhanced sealing, thereby improving the durability of the sealed automotive shock absorber guide during use.

[0018] By incorporating a bushing and a piston rod through-slot, the piston rod can be easily installed inside the guide body. The bushing reduces lateral forces and vibrations on the piston rod, extending its service life. The piston rod through-slot ensures linear movement of the piston rod, preventing uneven wear and jamming. This device achieves stable piston rod installation, improving the convenience and stability of the sealed automotive shock absorber guide during use.

[0019] By incorporating a trapezoidal groove and a connecting groove, the trapezoidal cross-section structure of the trapezoidal groove effectively collects and guides lubricating oil to the connecting groove, enhancing the sealing and lubrication effects. The collinearity of the connecting groove and the trapezoidal groove ensures smooth oil flow, maintains system pressure balance and lubrication, and enables the device to facilitate smooth oil flow, thereby improving the stability of the sealed automotive shock absorber guide during use. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0021] Figure 2This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the front cross-sectional structure of this utility model;

[0023] Figure 4 This is a three-dimensional structural schematic diagram of the main cross-section of this utility model;

[0024] Figure 5 This is a side view cross-sectional three-dimensional structural schematic diagram of the present invention;

[0025] Figure 6 This is a top-view cross-sectional three-dimensional structural diagram of the present invention.

[0026] The reference numerals in the figure are as follows: 1. Guide body; 2. Bushing; 3. Piston rod through groove; 4. Oil passage; 5. Ring sleeve; 6. Trapezoidal groove; 7. Connecting groove. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0028] Please see Figures 1-6 The present invention provides a sealed guide for automotive shock absorbers, comprising a guide body 1.

[0029] Reference Figures 1-6 A bushing 2 is fixed on the inner wall of the bottom of the guide body 1. A piston rod through groove 3 is opened inside the bushing 2. The central axis of the piston rod through groove 3 and the central axis of the connecting groove 7 are collinear. Oil passages 4 are evenly opened on the top of the guide body 1. The oil passages 4 are evenly distributed inside the guide body 1. The main view section of the oil passages 4 is inclined. A ring 5 is fixed on the top of the guide body 1. A trapezoidal groove 6 is opened on the top of the guide body 1. The main view section of the trapezoidal groove 6 is trapezoidal. The top view section area of ​​the trapezoidal groove 6 is larger than the bottom view section area. A connecting groove 7 is opened inside the guide body 1 at the bottom of the trapezoidal groove 6.

[0030] The guide body 1 can achieve the circulation and sealing of lubricating oil through multiple sets of oil passages 4. The bushing 2 and piston rod through groove 3 can ensure the stability and low friction of the piston rod during movement. The ring sleeve 5 and trapezoidal groove 6 cooperate with each other to further increase the sealing of the top of the guide body 1.

[0031] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A sealed guide for automotive shock absorbers, comprising a guide body (1); Its features are: A bushing (2) is fixed on the inner wall of the bottom of the guide body (1), and a piston rod through groove (3) is opened inside the bushing (2); Oil passages (4) are evenly provided on the top of the guide body (1); The top end of the guide body (1) is fixed with a ring (5), the top of the guide body (1) is provided with a trapezoidal groove (6), and the bottom end of the trapezoidal groove (6) is provided with a connecting groove (7) inside the guide body (1).

2. The seal-type automotive shock absorber guide according to claim 1, characterized by: The central axis of the piston rod through groove (3) and the central axis of the connecting groove (7) are collinear.

3. The seal-type automotive shock absorber guide according to claim 1, characterized by: The oil passages (4) are evenly distributed inside the guide body (1).

4. The seal-type automotive shock absorber guide according to claim 1, characterized by: The main view section of the oil passage (4) is designed to be inclined.

5. The seal-type automotive shock absorber guide according to claim 1, characterized by: The trapezoidal groove (6) has a trapezoidal design in its main view section.

6. The seal-type automotive shock absorber guide according to claim 1, wherein: The top view cross-sectional area of ​​the trapezoidal groove (6) is greater than the bottom view cross-sectional area of ​​the trapezoidal groove (6).

7. The seal-type automotive shock absorber guide according to claim 1, wherein: The central axis of the trapezoidal groove (6) and the central axis of the connecting groove (7) are collinear.

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