Front damping piston with enhanced sealing durability

Abstract

The utility model relates to the technical field of automobile parts, in particular to a front damping piston with enhanced sealing durability, which comprises a piston body, the whole piston body is cylindrical, and a through hole is formed in the center of the piston body in a penetrating manner; a plurality of right inclined oil liquid channels and a plurality of left inclined oil liquid channels are further arranged in the piston body, and a plurality of right inclined oil liquid channels and a plurality of left inclined oil liquid channels are arranged on the circumference. The outer end of the piston body is further coated with a sealing rubber piece. The utility model has the advantages that the use is safe and reliable, the risks of aging, abrasion and damage are effectively reduced, the strength and the abrasion resistance are improved, and the service life is prolonged; the sealing performance is improved, the leakage of damping oil is effectively reduced, and the overall stability under different working conditions is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, in particular to a front reduction piston with enhanced sealing durability. Background Art

[0002] The shock absorption system plays a vital role in vehicles such as automobiles and motorcycles, as well as in some mechanical equipment. As a core component of the shock absorption system, the performance of the front damper piston directly impacts the effectiveness of the entire shock absorption device. Conventional front damper pistons face several challenges during use. First, due to the frequent relative motion between the piston and cylinder, the sealing performance gradually deteriorates over time. Leakage may occur over time, reducing the shock absorption effect and affecting vehicle driving stability and comfort. Second, the sealing durability of existing front damper pistons is insufficient to meet actual requirements in complex operating environments, such as those with varying temperature, humidity, and pressure conditions. The sealing material can age, deform, or wear, reducing the sealing effect. Furthermore, with the development of the automotive industry, the performance requirements for shock absorption systems are increasing, and conventional pistons are no longer able to meet the demands for efficiency, reliability, and lightweightness. Therefore, developing a new front damper piston with improved sealing durability has become a pressing issue. Utility Model Content

[0003] In order to solve some of the problems existing in the above-mentioned prior art, the utility model provides a front reduction piston with enhanced sealing durability.

[0004] To achieve the above-mentioned purpose, the utility model provides a front reducing piston with enhanced sealing durability, including a piston body, which is generally cylindrical and has a through hole running through the center of the piston body; a right-inclined oil channel and a left-inclined oil channel are also provided in the piston body, and several right-inclined oil channels and left-inclined oil channels are provided on the circumference; the outer end of the piston body is also covered with a sealing rubber film.

[0005] When the utility model works, first, the piston body is installed to the corresponding position in the shock absorber. At this time, a through hole is set at the center position of the piston body to allow specific components to pass through; when the shock absorber starts to work, as the external force changes, the piston body reciprocates in the shock absorber cylinder; in this process, when the movement direction of the piston body changes, the oil flows between different chambers through the right inclined oil channel and the left inclined oil channel; there are several of these inclined oil channels on the circumference to ensure the uniformity and stability of the oil flow, thereby achieving buffering and shock-absorbing effects on external vibrations; at the same time, the sealing film coated on the outer end of the piston body plays a key sealing role, because the piston body and the sealing film are heated. It is tightly combined with the sleeve, and the sliding of the sealing rubber sheet is limited by the groove provided on the outer end face, so that the sealing rubber sheet is tightly fitted on the piston body, effectively preventing the leakage of shock absorber oil; the sealing rubber sheet is made of highly elastic and wear-resistant materials, which can maintain good sealing performance during long-term operation and resist wear from piston movement and external environment; in addition, the hardness test point provided on the left end face of the piston body can detect the hardness of the piston body when necessary, to ensure that the piston body can withstand various pressures and impact forces during operation; and the high mirror contact rate of the end face profile of the piston body and the large axial and radial crushing strength ensure stability and reliability under different working conditions, and effectively cope with various complex road conditions and usage environments.

[0006] The beneficial effects of the utility model are: a front damping piston with enhanced sealing durability, which is safe and reliable to use, effectively reduces the risks of aging, wear and damage, improves strength and wear resistance, and extends service life; improves sealing performance, effectively reduces leakage of shock absorber oil, and ensures overall stability under different working conditions.

[0007] As a further improvement of the present invention, in order to make the contact between the seal and the piston body closer and improve the sealing performance, a groove is provided on the outer end surface of the piston body, and a plurality of grooves are provided continuously at intervals.

[0008] As a further improvement of the present invention, in order to monitor the hardness of the piston body and ensure that the overall hardness meets the requirements, a hardness test point is also provided on the left end face of the piston body, and the hardness test point is arranged in a circular shape as a whole; several hardness test points are arranged on the circumference.

[0009] As a further improvement of the present invention, in order to better guide the oil to flow in a specific direction, the angles of the right inclined oil channel and the left inclined oil channel to the central axis of the through hole are both 10° to 15°.

[0010] As a further improvement of the present invention, in order to increase the contact area of ​​the mirror surface and enhance the overall sealing performance, the mirror surface contact rate of the piston body end surface profile is greater than 90%.

[0011] As a further improvement of the present invention, in order to ensure stability and reliability under different working conditions, the axial and radial crushing strengths of the piston body are both greater than 20 kN.

[0012] As a further improvement of the present invention, in order to prevent the sealing rubber sheet from sliding and falling off, reduce the risk of aging, wear and damage, and improve strength and wear resistance, the piston body and the sealing rubber sheet are tightly coupled by heating, and the sealing rubber sheet is restricted from sliding by a groove provided on the outer end surface of the piston body; the sealing rubber sheet is made of a highly elastic and wear-resistant material. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings:

[0014] Figure 1 It is a cross-sectional view of the present invention.

[0015] Figure 2 For the utility model Figure 1 Enlarged view of point A in the middle.

[0016] Figure 3 It is a left side view of the present invention.

[0017] Figure 4 It is a right side view of the present utility model.

[0018] Figure 5 It is a schematic diagram of the axial crushing of the utility model.

[0019] Figure 6 It is a schematic diagram of radial crushing of the utility model.

[0020] Among them, 1 piston body, 2 sealing film, 3 through hole, 4 right inclined oil channel, 5 left inclined oil channel, 6 hardness test point, 7 groove. DETAILED DESCRIPTION

[0021] like Figure 1-6The front reduction piston with enhanced sealing durability shown in the figure includes a piston body 1, which is arranged in a cylindrical shape as a whole and has a through hole 3 running through the center of the piston body 1; a right-angled oil channel 4 and a left-angled oil channel 5 are also provided in the piston body 1, and several right-angled oil channels 4 and left-angled oil channels 5 are provided on the circumference; the outer end of the piston body 1 is also covered with a sealing rubber sheet 2; a groove 7 is provided on the outer end surface of the piston body 1, and the groove 7 is provided at several intervals; a hardness test point 6 is also provided on the left end surface of the piston body 1 The hardness test point 6 is arranged in a circular shape as a whole; several hardness test points 6 are arranged on the circumference; the angles between the right inclined oil channel 4 and the left inclined oil channel 5 and the central axis of the through hole 3 are both 10°~15°; the mirror contact rate of the end face profile of the piston body 1 is greater than 90%; the axial and radial crushing strengths of the piston body 1 are both greater than 20kN; the piston body 1 and the sealing rubber sheet 2 are tightly combined by heating, and the sealing rubber sheet 2 is restricted from sliding by the groove 7 provided on the outer end surface of the piston body 1; the sealing rubber sheet 2 is made of highly elastic and wear-resistant material.

[0022] When the present invention is working, first, the piston body 1 is installed to the corresponding position in the shock absorber. At this time, a through hole 3 is set at the center position of the piston body 1 to allow specific components to pass through; when the shock absorber starts to work, as the external force changes, the piston body 1 reciprocates in the shock absorber cylinder; in this process, when the movement direction of the piston body 1 changes, the oil flows between different chambers through the right inclined oil channel 4 and the left inclined oil channel 5; there are several of these inclined oil channels on the circumference to ensure the uniformity and stability of the oil flow, thereby achieving buffering and shock-absorbing effects on external vibrations; at the same time, the sealing film 2 coated on the outer end of the piston body 1 plays a key sealing role, because the piston body 1 and the sealing film 2 are heated. It is tightly fitted and the sliding of the sealing film 2 is limited by the groove 7 provided on the outer end surface, so that the sealing film 2 fits tightly on the piston body 1, effectively preventing the leakage of the shock absorber oil; the sealing film 2 is made of highly elastic and wear-resistant materials, which can maintain good sealing performance during long-term operation and resist wear from piston movement and the external environment; in addition, the hardness test point 6 provided on the left end surface of the piston body 1 can detect the hardness of the piston body 1 when necessary to ensure that the piston body 1 can withstand various pressures and impact forces during operation; and the high mirror contact rate of the end face profile of the piston body 1 and the large axial and radial crushing strength ensure stability and reliability under different working conditions, and effectively cope with various complex road conditions and usage environments.

[0023] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A front reducing piston with enhanced sealing durability, comprising a piston body (1), characterized in that: The piston body (1) is cylindrical in shape as a whole, and a through hole (3) is provided at the center of the piston body (1); a right-inclined oil channel (4) and a left-inclined oil channel (5) are also provided in the piston body (1), and a plurality of the right-inclined oil channels (4) and the left-inclined oil channels (5) are provided on the circumference; the outer end of the piston body (1) is also covered with a sealing film (2).

2. The front reduction piston with enhanced sealing durability according to claim 1, characterized in that: A groove (7) is provided on the outer end surface of the piston body (1), and a plurality of grooves (7) are provided at intervals in series.

3. The front reduction piston with enhanced sealing durability according to claim 1, characterized in that: A hardness test point (6) is also provided on the left end surface of the piston body (1), and the hardness test point (6) is arranged in a circular shape as a whole; a plurality of the hardness test points (6) are arranged on the circumference.

4. The front reduction piston with enhanced sealing durability according to claim 1, characterized in that: The angles between the right-inclined oil channel (4) and the left-inclined oil channel (5) and the central axis of the through hole (3) are both 10° to 15°.

5. The front reduction piston with enhanced sealing durability according to claim 1, characterized in that: The mirror contact rate of the end profile of the piston body (1) is greater than 90%.

6. The front reduction piston with enhanced sealing durability according to claim 1, characterized in that: The axial and radial crushing strengths of the piston body (1) are both greater than 20 kN.

7. A front reducing piston with enhanced sealing durability according to claim 1 or 2, characterized in that: The piston body (1) and the sealing rubber sheet (2) are tightly coupled by heating, and the sealing rubber sheet (2) is restricted from sliding by a groove (7) provided on the outer end surface of the piston body (1); the sealing rubber sheet (2) is made of a highly elastic and wear-resistant material.

Images