Sealing structure for guider of automobile shock absorber
By setting a sealing structure body at the vehicle shock absorber guide body, a two-way double-channel seal is formed using a round table sleeve, rod sleeve, rubber ring and plug ring A/B, the problem of insufficient sealing of the guide and inner cylinder wall is solved, and efficient sealing of the piston rod and the guide is achieved.
Patent Information
- Application Number
- CN202422377154.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-29
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-09-29
AI Technical Summary
The sealing between the existing automobile shock absorber guide and the inner cylinder wall is insufficient, and the sealingness of the piston rod and the guide when operating in the shock absorber cylinder cannot be effectively guaranteed.
A sealing structure for automobile shock absorber guide is designed. By providing a sealing structure body at the guide body, the piston rod is wrapped with a round table sleeve and a rod sleeve, and a bidirectional double-channel seal is formed in combination with the rubber ring, plug ring A and plug ring B to enhance the sealing property between the guide and the inner cylinder wall.
It effectively solves the problem of insufficient sealing between the guide and the inner cylinder wall, ensures the contact sealing between the piston rod and the guide when running in the shock absorber inner cylinder wall, and improves the overall sealing.
Smart Images
Figure CN223019285U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of guide seal of automobile shock absorbers, and particularly relates to a guide seal structure of an automobile shock absorber. Background Technique
[0002] In order to rapidly attenuate the vibration of the vehicle frame and the vehicle body and improve the ride comfort and smoothness of the vehicle, shock absorbers are generally installed on the vehicle suspension system. The shock absorber consists of a piston valve and a bottom valve that generate damping force, a cylinder body and a storage tube that store oil and gas (air), a connecting rod that transmits the movement of the vehicle body, and an oil seal that prevents internal gas or oil leakage; moreover, with the piston valve as the reference, the upper part above it is called the piston upper chamber, the lower part below it is called the piston lower chamber, the storage tube and the cylinder body; the space between them is called the storage chamber; the piston upper chamber is always filled with oil, the lower layer of the storage chamber is filled with oil, and the upper layer is filled with air or gas (nitrogen). A guide is installed at the inner top of the storage chamber, and an oil piston rod passes through the guide. On the one hand, the guide can limit the position of the guide rod, and on the other hand, it can discharge high-pressure oil to ensure the stability inside the cylinder.
[0003] A guide is usually provided at the piston rod of the cylinder body of the automobile shock absorber to have directivity during the operation of the cylinder body. Usually, a simple sealing ring is provided at this guide to maintain a sealed contact with the inner wall of the automobile shock absorber. The single sealing ring results in a low sealing guarantee between the guide and the inner wall of the shock absorber, and cannot guarantee the sealing performance of the piston rod and the guide during the operation in the shock absorber cylinder body. For this reason, we propose a guide seal structure of an automobile shock absorber. Summary of the Invention
[0004] The main purpose of the utility model is to provide a guide seal structure of an automobile shock absorber. A seal structure body is provided at the guide body for the piston rod inside the automobile shock absorber. The guide body strengthens the sealing between the piston rod and the guide body by means of the conical sleeve head and the rod sleeve of the seal structure body. There is a rubber ring on the outer surface of the guide body, and additional double-sided double-channel seals can be formed between the guide body and the inner wall of the automobile shock absorber by means of plug ring A and plug ring B, ensuring the contact sealing performance when the piston rod cooperates with the guide body to operate in the inner wall of the automobile shock absorber, and effectively solving the problems in the background technique.
[0005] To achieve the above purpose, the technical solution adopted by the utility model is as follows:
[0006] An automotive shock absorber guide seal structure includes a guide body and a rod hole, and also includes a rod sleeve, a conical sleeve head, a ring groove, a rubber ring, a plug ring A, a plug ring B, and a connecting rib plate to form a seal structure body. The top shell surface of the guide body is provided with a rod hole for the internal piston rod of the automotive shock absorber to pass through, and a rod sleeve is bonded in the rod hole. A conical sleeve head extending out of the rod hole is molded at the top of the rod sleeve. A ring groove for the rubber ring to be sleeved into is provided on the outer ring surface of the guide body, and plug ring A and plug ring B are respectively molded on the upper and lower circular surfaces of the rubber ring. A connecting rib plate is integrally formed between the rubber ring, plug ring A, and plug ring B.
[0007] Further, the connecting rib plates are annularly distributed between the rubber ring, plug ring A, and plug ring B for resilient connection; multiple groups of connecting rib plates are annularly distributed between the rubber ring, plug ring A, and plug ring B for multi-point resilient reinforcement connection.
[0008] Further, the conical sleeve cavity of the conical sleeve head communicates with the tube hole of the rod sleeve; the piston rod of the automotive shock absorber can pass through the conical sleeve head and the rod sleeve.
[0009] Further, the ring bodies of plug ring A and plug ring B are elastic ring bodies; the elastic ring bodies of plug ring A and plug ring B can be squeezed by the guide body to maintain a two-way double-channel seal between the upper and lower ends of the guide body and the inner barrel wall of the automotive shock absorber.
[0010] Further, the depth of the groove body of the ring groove is less than the thickness of the circular body of the rubber ring; after the thicker rubber ring is embedded in the ring groove, a part of the circular body can slightly protrude to contact the inner barrel wall of the automotive shock absorber to produce a sealing contact.
[0011] Compared with the prior art, the present utility model has the following beneficial effects:
[0012] In the present utility model, a seal structure body is provided at the guide body for the internal piston rod of the automotive shock absorber. The guide body strengthens the seal between the piston rod and the guide body by means of the conical sleeve head and the rod sleeve of the seal structure body to wrap the piston rod. And on the outer surface of the guide body, the rubber ring, with the help of plug ring A and plug ring B, can additionally form a two-way double-channel seal between the guide body and the inner barrel wall of the automotive shock absorber, ensuring the contact sealing performance when the piston rod cooperates with the guide body to run in the inner barrel wall of the automotive shock absorber. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the overall structure of a seal structure of an automotive shock absorber guide of the present utility model.
[0014] Figure 2 It is an exploded view of a seal structure of an automotive shock absorber guide of the present utility model.
[0015] In the figure: 1. Guide body; 2. Rod hole; 3. Sealing structure body; 4. Rod sleeve; 5. Frustum-shaped socket; 6. Ring groove; 7. Rubber ring; 8. Plug ring A; 9. Plug ring B; 10. Connecting rib plate. Specific implementation mode
[0016] In order to make the technical means, creative features, achieved purposes and effects realized by the present utility model easy to understand, the present utility model will be further described below in conjunction with specific implementation modes.
[0017] As Figure 1-2 shown, a sealing structure of an automotive shock absorber guide includes a guide body 1 and a rod hole 2, and also includes a rod sleeve 4, a frustum-shaped socket 5, a ring groove 6, a rubber ring 7, a plug ring A 8, a plug ring B 9 and a connecting rib plate 10 to form a sealing structure body 3. A rod hole 2 for the internal piston rod of the automotive shock absorber to pass through is opened on the top shell surface of the guide body 1. A rod sleeve 4 is bonded in the rod hole 2. A frustum-shaped socket 5 extending out of the rod hole 2 is molded at the top of the rod sleeve 4. A ring groove 6 for the rubber ring 7 to be sleeved is opened on the outer ring surface of the guide body 1. Plug rings A 8 and B 9 are respectively molded at the upper and lower ring surfaces of the rubber ring 7. A connecting rib plate 10 is integrally formed between the rubber ring 7, the plug ring A 8 and the plug ring B 9.
[0018] Among them, the connecting rib plates 10 are annularly distributed between the rubber ring 7, the plug ring A 8 and the plug ring B 9 for resilient connection; multiple groups of connecting rib plates 10 are annularly distributed between the rubber ring 7, the plug ring A 8 and the plug ring B 9 for multi-point resilient reinforcement connection; the ring bodies of the plug rings A 8 and B 9 are elastic ring bodies; the elastic ring body plug rings A 8 and B 9 can be extruded by the guide body 1 to maintain double-way double-channel sealing between the upper and lower ends of the guide body 1 and the inner barrel wall of the automotive shock absorber.
[0019] Among them, the frustum-shaped cavity of the frustum-shaped socket 5 communicates with the tube hole of the rod sleeve 4; the piston rod of the automotive shock absorber can pass through the frustum-shaped socket 5 and the rod sleeve 4.
[0020] Among them, the depth of the groove body of the ring groove 6 is less than the thickness of the ring body of the rubber ring 7; after the thicker rubber ring 7 is embedded in the ring groove 6, part of the ring body can slightly protrude to contact the inner barrel wall of the automotive shock absorber to produce sealing contact.
[0021] It should be noted that the present utility model is a sealing structure for a guide of an automotive shock absorber. A sealing structure body 3 is provided at the guide body 1 for the piston rod inside the automotive shock absorber. After a rod sleeve 4 behind the conical socket head 5 is bonded in the rod hole 2 of the guide body 1, the piston rod inside the automotive shock absorber can pass through the rod hole 2 and the guide body 1 from the conical socket head 5 and the rod sleeve 4. The sleeve of the piston rod by the conical socket head 5 and the rod sleeve 4 strengthens the seal between the piston rod and the guide body 1. There is a ring groove 6 on the outer surface of the guide body 1, and a rubber ring 7 is sleeved therein. After the thicker rubber ring 7 is embedded in the ring groove 6, a part of the ring body can slightly protrude to contact the inner cylinder wall of the automotive shock absorber to generate a sealing contact. Multiple groups of connecting rib plates 10 are annularly distributed among the rubber ring 7, the plug ring A 8 and the plug ring B 9 for multi-point toughness reinforcement connection, so that the rubber ring 7 can additionally form a double-way double-channel seal between the guide body 1 and the inner cylinder wall of the automotive shock absorber by means of the plug ring A 8 and the plug ring B 9, thereby greatly improving the sealing performance between the guide body 1 and the inner cylinder wall of the automotive shock absorber, and ensuring the contact sealing performance when the piston rod cooperates with the guide body 1 to operate in the inner cylinder wall of the automotive shock absorber.
[0022] It should be noted that the present utility model is a sealing structure for a guide of an automotive shock absorber, including 1. guide body; 2. rod hole; 3. sealing structure body; 4. rod sleeve; 5. conical socket head; 6. ring groove; 7. rubber ring; 8. plug ring A; 9. plug ring B; 10. connecting rib plate. The components are all common standard parts or parts known to those skilled in the art, and their structures and principles can all be known by those skilled in the art through technical manuals or obtained through conventional experimental methods.
[0023] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.
Claims
1. A sealing structure for a guide of an automobile shock absorber, comprising a guide body (1) and a rod hole (2), characterized in that: The invention also comprises a rod sleeve (4), a truncated cone sleeve (5), an annular groove (6), a rubber ring (7), a plug ring A (8), a plug ring B (9) and a connecting rib plate (10) to form a sealing structure body (3); a rod hole (2) for the piston rod inside the automobile shock absorber to pass through is provided on the top shell surface of the guide body (1); a rod hole (2) for the piston rod inside the automobile shock absorber to pass through is provided, and a rod sleeve (4) is bonded inside the rod hole (2); a truncated cone sleeve (5) extending out of the rod hole (2) is molded on the top of the rod sleeve (4); an annular groove (6) for the rubber ring (7) to be inserted is provided on the outer ring surface of the guide body (1); a plug ring A (8) and a plug ring B (9) are molded on the upper and lower ring surfaces of the rubber ring (7), respectively; and a connecting rib plate (10) is integrally formed between the rubber ring (7), the plug ring A (8) and the plug ring B (9).
2. The automobile shock absorber guide sealing structure according to claim 1, characterized in that: The connecting rib plate (10) is distributed in an annular shape between the rubber ring (7), the plug ring A (8) and the plug ring B (9) to provide a tough connection.
3. The automobile shock absorber guide sealing structure according to claim 1, characterized in that: The truncated cone-shaped sleeve body chamber of the truncated cone sleeve head (5) is in communication with the tube hole of the rod sleeve (4).
4. The automobile shock absorber guide sealing structure according to claim 1, characterized in that: The ring bodies of the plug ring A (8) and the plug ring B (9) are elastic ring bodies.
5. The automobile shock absorber guide sealing structure according to claim 1, characterized in that: The groove body depth of the annular groove (6) is less than the ring body thickness of the rubber ring (7).