Automotive suspension piston rod
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- RIZHAO SHANGYI MASCH CO LTD
- Filing Date
- 2024-09-05
- Publication Date
- 2026-08-07
AI Technical Summary
[0004]高维修成本:由于传统活塞杆的不可拆卸设计,磨损或损坏时需要更换整个活塞杆,这导致了较高的维修成本
[0016] Cost-effectiveness: By designing a replaceable outer sleeve, the need to replace the entire piston rod when it wears out is avoided, thus significantly reducing maintenance costs.
Smart Images

Figure CN224606912U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive suspension piston rod technology, specifically to an automotive suspension piston rod. Background Technology
[0002] In a car's suspension system, the piston rod is a crucial component, responsible for connecting the suspension system and the wheels, transmitting force and motion. Traditional car suspension piston rods are typically composed of a single, integral structure. This means that if any part of the piston rod (such as the outer tube) wears out or is damaged, the entire piston rod needs to be replaced. This not only increases maintenance costs but can also lead to prolonged vehicle downtime, affecting operational efficiency.
[0003] Existing automotive suspension piston rods have the following shortcomings:
[0004] High maintenance costs: Due to the non-removable design of traditional piston rods, the entire piston rod needs to be replaced when it is worn or damaged, which leads to high maintenance costs.
[0005] Inconvenient maintenance: The maintenance of traditional piston rods usually requires professional technicians and special tools, which increases the complexity and time cost of maintenance.
[0006] Therefore, this solution proposes a car suspension piston rod to solve the above problems. Utility Model Content
[0007] To overcome the shortcomings of the prior art, the purpose of this utility model is to provide an automotive suspension piston rod.
[0008] To achieve the aforementioned objective, the technical solution of this utility model is implemented as follows: an automotive suspension piston rod includes a rod body, a positioning boss is provided at the top of the rod body, a replaceable outer sleeve is sleeved on the outside of the rod body, and an end-tightening threaded sleeve is threadedly connected to the bottom of the rod body. The two ends of the replaceable outer sleeve are clamped between the positioning boss and the end-tightening threaded sleeve.
[0009] As a preferred embodiment of this utility model, six positioning posts are evenly arranged on the end face of the positioning boss that contacts the upper end face of the replaceable outer sleeve, and six positioning holes are evenly arranged inside the upper end face of the replaceable outer sleeve, with the six positioning posts correspondingly inserted into the interior of the six positioning holes.
[0010] As a preferred technical solution of this utility model, the outer wall of the replaceable outer sleeve is provided with a wear-resistant layer.
[0011] As a preferred technical solution of this utility model, the bottom end of the rod is connected to a threaded connector, and the end of the threaded sleeve is provided with a through hole for the threaded connector to pass through.
[0012] As a preferred embodiment of this utility model, the top of the positioning boss is connected to a rod head.
[0013] As a preferred embodiment of this utility model, the positioning boss, the replaceable outer sleeve, and the outer wall of the end-tightening threaded sleeve are all flush.
[0014] As a preferred embodiment of this invention, the wear-resistant layer is formed by electroplating.
[0015] The beneficial effects of this utility model are reflected in:
[0016] Cost-effectiveness: By designing a replaceable outer sleeve, the need to replace the entire piston rod when it wears out is avoided, thus significantly reducing maintenance costs.
[0017] Easy to maintain: The replaceable outer tube design makes maintenance easier, allowing users to quickly replace worn parts and reduce repair and downtime.
[0018] High reliability: The clamping connection between the positioning boss and the end-tightening threaded sleeve, as well as the precise fit between the positioning pin and the positioning hole, ensure a stable connection between the outer sleeve and the rod body, improving the reliability of the entire system.
[0019] In summary, this utility model's automotive suspension piston rod, through its innovative design and optimized structure, improves the convenience and cost-effectiveness of maintenance. This design is not only applicable to various automotive suspension systems but also provides a useful reference for the maintenance and design of other mechanical equipment. Through these improvements, this utility model significantly enhances the overall performance of the automotive suspension piston rod, bringing users greater practical value and economic benefits. Attached Figure Description
[0020] In the attached diagram:
[0021] Figure 1 This is a schematic diagram of the structure of this utility model;
[0022] Figure 2 This is a schematic diagram of the half-section structure of this utility model;
[0023] Figure 3 This is a schematic diagram of the explosive separation of this utility model;
[0024] Figure 4 This is a schematic diagram of the replaceable outer sleeve of this utility model;
[0025] Figure 5 This is a schematic diagram of the upper end face structure of the replaceable outer sleeve of this utility model;
[0026] Explanation of reference numerals in the attached figures:
[0027] 1. Rod body; 2. Positioning boss; 3. Replaceable outer sleeve; 4. End-tightening threaded sleeve; 5. Threaded connector; 6. Positioning post; 7. Rod head;
[0028] 31. Wear-resistant layer; 32. Positioning hole. Detailed Implementation
[0029] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Obviously, the described embodiments are only a part of the embodiments of the utility model, and not all of them. Unless otherwise specified, the embodiments and features described in this application can be combined with each other. All other embodiments obtained by those skilled in the art based on the embodiments of the utility model without creative effort are within the scope of protection of the utility model.
[0030] It should be noted that if the utility model embodiment involves directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.
[0031] Furthermore, "multiple" refers to two or more. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by the utility model.
[0032] Please refer to the instruction manual appendix. Figures 1-5 This utility model provides an automotive suspension piston rod, including a rod body 1. A positioning boss 2 is provided at the top of the rod body 1 for positioning a replaceable outer sleeve 3. The replaceable outer sleeve 3 is sleeved on the outside of the rod body 1. The replaceable outer sleeve 3 can be replaced individually after wear, eliminating the need to replace the entire piston rod and saving maintenance costs. A threaded end-tightening threaded sleeve 4 is screwed to the bottom of the rod body 1, which clamps and fixes the bottom end of the replaceable outer sleeve 3. The two ends of the replaceable outer sleeve 3 are clamped between the positioning boss 2 and the end-tightening threaded sleeve 4. Through the clamping action of the positioning boss 2 and the end-tightening threaded sleeve 4, the replaceable outer sleeve 3 is stably fixed to the outside of the rod body 1.
[0033] In this embodiment, six positioning posts 6 are evenly arranged on the end face of the positioning boss 2 that contacts the upper end face of the replaceable outer tube 3, and six positioning holes 32 are evenly arranged inside the upper end face of the replaceable outer tube 3. The six positioning posts 6 are correspondingly inserted into the six positioning holes 32. By setting the positioning posts 6 and positioning holes 32, the positioning between the replaceable outer tube 3 and the positioning boss 2 is more accurate and the installation is more convenient. At the same time, the setting of multiple positioning posts 6 and positioning holes 32 can improve the stability and reliability of the connection between the replaceable outer tube 3 and the positioning boss 2.
[0034] In this embodiment, a wear-resistant layer 31 is provided on the outer wall of the replaceable outer sleeve 3. The wear-resistant layer 31 can improve the wear resistance of the replaceable outer sleeve 3 and extend its service life.
[0035] In this embodiment, a threaded connector 5 is mated at the center of the bottom end of the rod 1, and a through hole for the threaded connector 5 to pass through is provided at the center of the threaded sleeve 4 at the end. By providing the threaded connector 5, it is easy to connect with other components. The threaded connector 5 can be selected with a suitable thread standard, such as metric thread, imperial thread, etc., to match the requirements of the connected components.
[0036] In this embodiment, the top of the positioning boss 2 is connected to the rod head 7. The rod head 7 is easy to hinge with other components. The rod head 7 can be configured with a suitable structural form according to actual needs, such as a ball head, a fork head, etc.
[0037] In this embodiment, the outer walls of the positioning boss 2, the replaceable outer sleeve 3, and the end-tightening threaded sleeve 4 are all flush. The flush outer walls prevent interference during piston rod sliding.
[0038] In this embodiment, the wear-resistant layer 31 is formed by electroplating. Electroplating is a low-cost and highly efficient process that can quickly form a wear-resistant layer on the surface of the replaceable outer sleeve 3. Suitable plating materials, such as chromium or nickel, can be selected during electroplating to obtain excellent wear resistance. The electroplating operation can be performed separately on the replaceable outer sleeve 3, facilitating its preparation and replacement.
[0039] This utility model discloses an automotive suspension piston rod. Through the combination design of the replaceable outer sleeve 3 and the rod body 1, the replaceable outer sleeve 3 can be replaced individually without replacing the entire piston rod, significantly reducing maintenance costs. Simultaneously, the clamping connection between the positioning boss 2 and the end-tightening threaded sleeve 4, as well as the cooperation between the positioning pin 6 and the positioning hole 32, ensures reliable fixation and precise positioning between the replaceable outer sleeve 3 and the rod body 1. Furthermore, the wear-resistant layer 31 effectively improves the wear resistance and service life of the replaceable outer sleeve 3. This automotive suspension piston rod has a reasonable structure, is easy to maintain, effectively reduces operating costs, and has good practical value.
[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
[0041] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0042] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A piston rod for automobile suspension, comprising a rod body (1), characterized in that, The top of the rod (1) is provided with a positioning boss (2), and a replaceable outer sleeve (3) is sleeved on the outside of the rod (1). A threaded end sleeve (4) is screwed to the bottom of the rod (1). The two ends of the replaceable outer sleeve (3) are clamped between the positioning boss (2) and the threaded end sleeve (4).
2. The automobile suspension piston rod according to claim 1, characterized in that, The positioning boss (2) has 6 positioning posts (6) evenly arranged on the end face that contacts the upper end face of the replaceable outer tube (3). The upper end face of the replaceable outer tube (3) has 6 positioning holes (32) evenly arranged. The 6 positioning posts (6) are inserted into the interior of the 6 positioning holes (32).
3. The automobile suspension piston rod according to claim 1, characterized in that, The replaceable outer sleeve (3) is provided with a wear-resistant layer (31) on the outer wall.
4. The automobile suspension piston rod according to claim 1, characterized in that, The bottom center of the rod (1) is connected to a threaded connector (5), and the center of the end-tight threaded sleeve (4) is provided with a through hole for the threaded connector (5) to pass through.
5. A car suspension piston rod according to claim 1, characterized in that, The top of the positioning boss (2) is connected to the rod head (7).
6. A car suspension piston rod according to claim 1, characterized in that, The outer walls of the positioning boss (2), the replaceable outer sleeve (3), and the end-tightening threaded sleeve (4) are all flush.
7. A car suspension piston rod according to claim 3, characterized in that, The wear-resistant layer (31) is formed by electroplating.