Guiding and sealing structure
By adopting the guide and sealing structure of steel pipes, dust covers, dust seals and support rings in the shock absorber, combined with the main oil seal of the Stir seal and the combined structure, the problem of low stability of the existing shock absorber guide and sealing structure is solved, and higher working stability and service life are achieved.
Patent Information
- Application Number
- CN202421213753.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-30
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-05-30
AI Technical Summary
The guide and sealing structures of existing shock absorbers have low working stability and are prone to damage, resulting in a reduced service life.
The guide and seal structure including steel pipes, dustproof covers and dustproof seals are adopted. The dustproof seal is arranged in the gap formed by the steel pipes and dustproof covers to prevent the entry of external dust and mud and sand, and the support ring is added to cope with the lateral force of the piston rod in a fierce driving state, and the main oil seal of the Stamp seal and the combined structure are used to filter the pressure.
It improves the working stability of the guide and seal structure, extends the service life, prevents external impurities from entering and wear of the piston rod, and enhances the protection of the main oil seal.
Smart Images
Figure CN222650453U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of shock absorber parts of automobile suspension parts, and particularly relates to a guiding and sealing structure. Background Art
[0002] Shock absorbers are one of the important components of the automobile suspension system. Their working performance directly affects the safety of automobile operation, the smoothness of driving and the comfort of passengers, and also affects the abnormal damage of other related automobile parts. Hydraulic shock absorbers are widely used in different models due to their good shock absorption performance.
[0003] The existing guide and sealing structures of shock absorbers have some shortcomings during use. The guide and sealing structures are not perfect, and dust and impurities from the outside are easy to enter, which is easy to cause contamination, reducing the working stability of the guide and sealing structures. In addition, the existing guide and sealing structures are easily damaged when facing instantaneous large pressure, which reduces the service life. Summary of the invention
[0004] The utility model aims to provide a guide and sealing structure, aiming to solve the technical problems of low working stability, easy damage and reduced service life of the guide and sealing structure in the prior art.
[0005] To achieve the above-mentioned purpose, the guiding and sealing structure provided by the embodiment of the utility model includes a steel pipe and a dust cover, wherein the dust cover is connected to one end of the steel pipe, a dust seal is provided between the dust cover and the steel pipe, the dust seal is respectively connected to the dust cover and the steel pipe, the steel pipe, the dust cover and the dust seal form a sealing structure, a main oil seal is provided in the steel pipe, the main oil seal is connected to the steel pipe, a step seal is provided on one side of the main oil seal, the step seal is connected to the steel pipe, an oil-free bearing is provided on one side of the step seal, the oil-free bearing is connected to the steel pipe, an outer sealing ring is provided on one side of the oil-free bearing, and the outer sealing ring is connected to the steel pipe.
[0006] As an optional solution of the utility model, it also includes a support ring, which is fixedly connected to the steel pipe and is made of metal.
[0007] As an optional solution of the present invention, shock absorber oil is provided in the steel pipe.
[0008] As an optional solution of the present invention, the dust seal is arranged in a gap formed by the steel pipe and the dust cover, and is fixedly connected to the steel pipe and the dust cover respectively.
[0009] The above one or more technical solutions in the guide and sealing structure provided by the embodiment of the utility model have at least one of the following technical effects:
[0010] The guiding and sealing structure provided by the present application includes a steel pipe and a dust cover. The dust seal is designed for harsh environments such as outdoor unpaved roads to prevent mud and sand from entering the shock absorber and wearing the piston rod and the main oil seal, thereby increasing the working stability. The support ring is added to cope with the lateral force of the piston rod under the intense driving state of the shock absorber and better protect the main oil seal. The main oil seal is a combined structure with an inner ring that is resistant to friction and high temperature, and an outer ring that is resistant to oil and low temperature. The dust seal plays a protective role. When the car jumps violently or moves violently, the internal pressure of the shock absorber increases instantly. In this case, the dust seal can first filter out a large part of the pressure, reduce the pressure of the oil seal, and avoid damage to the main oil seal, thereby increasing its service life. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0012] Figure 1 A schematic structural diagram of the guide and sealing structure provided in an embodiment of the utility model.
[0013] Among them, the reference numerals in the figure are:
[0014] 1. Steel pipe; 2. Dust cover; 3. Dust seal; 4. Main oil seal; 5. Step seal; 6. Oil-free bearing; 7. Outer sealing ring; 8. Support ring; 9. Shock absorber oil. DETAILED DESCRIPTION
[0015] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the embodiments of the present invention, and should not be construed as limiting the present invention.
[0016] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0017] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.
[0018] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.
[0019] In one embodiment of the present invention, Figure 1 As shown, a guiding and sealing structure is provided, including a steel pipe 1 and a dust cover 2. The dust cover 2 is fixedly connected to one end of the steel pipe 1, and a dust seal 3 is provided between the dust cover 2 and the steel pipe 1. The dust seal 3 is fixedly connected to the dust cover 2 and the steel pipe 1 respectively. The steel pipe 1, the dust cover 2, and the dust seal 3 form a sealing structure, and the dust seal 3 prevents the entry of external impurities and plays a protective role. A main oil seal 4 is provided in the steel pipe 1, and the main oil seal 4 is fixedly connected to the steel pipe 1. The main oil seal 4 prevents the shock absorber oil 9 from penetrating and has a protective effect. A step seal 5 is provided on one side of the main oil seal 4, and the step seal 5 is fixedly connected to the steel pipe 1. The step seal 5 has a filtering pressure effect and can filter out a large part of the pressure. An oil-free bearing 6 is provided on one side of the step seal 5, and the oil-free bearing 6 is fixedly connected to the steel pipe 1. An outer sealing ring 7 is provided on one side of the oil-free bearing 6, and the outer sealing ring 7 is fixedly connected to the steel pipe 1, and the outer sealing ring 7 has a further dustproof effect. The guiding and sealing structure and the dust seal 3 provided in the present application are designed for harsh environments such as outdoor unpaved roads to prevent mud and sand from entering the shock absorber and wearing the piston rod and the main oil seal 4, thereby increasing the working stability. The support ring 8 is added to cope with the lateral force of the piston rod under the intense driving state of the shock absorber and better protect the main oil seal 4. The main oil seal 4 is a combined structure, the inner ring is resistant to friction and high temperature, the outer ring is resistant to oil and low temperature, and the step seal 5 plays a protective role. When the car jumps violently or moves violently, the internal pressure of the shock absorber increases instantly. In this case, the step seal 5 can first filter out a large part of the pressure, reduce the pressure of the oil seal, and avoid damage to the main oil seal 4, thereby increasing the service life.
[0020] In another embodiment of the utility model, the guide and sealing structure further includes a support ring 8, which is fixedly connected to the steel pipe 1 and made of metal. The support ring 8 can cope with the lateral force of the piston rod under the intense driving state of the shock absorber and better protect the main oil seal 4.
[0021] In another embodiment of the utility model, shock absorber oil 9 is arranged in the steel pipe 1 of the guiding and sealing structure to provide damping force and lubrication effect.
[0022] In another embodiment of the utility model, the dust seal 3 of the guide and sealing structure is arranged in the gap formed by the steel pipe 1 and the dust cover 2, and is respectively fixedly connected to the steel pipe 1 and the dust cover 2. The dust seal 3 can effectively prevent external dust from entering the guide and sealing structure and affecting the service life of the guide and sealing structure.
[0023] The guiding and sealing structure and the dust seal 3 provided in the present application are designed for harsh environments such as outdoor unpaved roads to prevent mud and sand from entering the shock absorber and wearing the piston rod and the main oil seal 4, thereby increasing the working stability. The support ring 8 is added to cope with the lateral force of the piston rod under the intense driving state of the shock absorber and better protect the main oil seal 4. The main oil seal 4 is a combined structure, the inner ring is resistant to friction and high temperature, the outer ring is resistant to oil and low temperature, and the step seal 5 plays a protective role. When the car jumps violently or moves violently, the internal pressure of the shock absorber increases instantly. In this case, the step seal 5 can first filter out a large part of the pressure, reduce the pressure of the oil seal, and avoid damage to the main oil seal 4, thereby increasing the service life.
[0024] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A guiding and sealing structure, characterized in that: It includes a steel pipe and a dust cover, the dust cover is connected to one end of the steel pipe, a dust seal is arranged between the dust cover and the steel pipe, the dust seal is respectively connected to the dust cover and the steel pipe, the steel pipe, the dust cover and the dust seal form a sealing structure, a main oil seal is arranged in the steel pipe, the main oil seal is connected to the steel pipe, a step seal is arranged on one side of the main oil seal, the step seal is connected to the steel pipe, an oil-free bearing is arranged on one side of the step seal, the oil-free bearing is connected to the steel pipe, an outer sealing ring is arranged on one side of the oil-free bearing, and the outer sealing ring is connected to the steel pipe.
2. A guiding and sealing structure according to claim 1, characterized in that: It also includes a support ring, which is fixedly connected to the steel pipe and is made of metal.
3. A guiding and sealing structure according to claim 1, characterized in that: Shock absorber oil is arranged in the steel pipe.
4. A guiding and sealing structure according to claim 1, characterized in that: The dust seal is arranged in a gap formed by the steel pipe and the dust cover, and is fixedly connected to the steel pipe and the dust cover respectively.