Front shock absorber spring pre-pressing and damping adjusting integrated assembly

Abstract

The invention discloses a front shock absorber spring pre-pressing and damping adjusting integrated assembly, which belongs to the technical field of shock absorbers, and comprises a spring, a spring seat, a spring seat screw, a guide seat, an inner base, a thrust bearing, a pre-pressing screw, an outer base, a spring adjusting knob, a damping rod and a shock absorber cylinder body. The spring is installed on the spring seat, the spring seat is fixed to the guide seat through the spring seat screw, the guide seat penetrates through the inner base, the spring adjusting knob drives the prepressing screw to push the guide seat, and prepressing of the spring is adjusted. A central hole is formed in the inner base, the damping rod penetrates through the central hole, and damping can be adjusted externally. And the outer base is screwed into the front shock absorber to press the inner base to form stable connection. The shock absorber is compact in structure, comprehensive in function and capable of achieving external adjustment of spring pre-pressing and damping of the shock absorber at the same time.

Description

Technical Field

[0001] The invention relates to the technical field of shock absorbers, in particular to a front shock absorber spring preload and damping adjustment integrated component. Background Art

[0002] Two-wheeled vehicles such as bicycles and motorcycles are an important part of road traffic. They are cheap and easy to use. The front shock absorber plays a very important role in the handling stability of bicycles and motorcycles, so its performance needs to be paid attention to, especially the spring preload and damping characteristics of the front shock absorber. However, traditional front shock absorbers often only have adjustable spring preload or fewer adjustable damping characteristics, which cannot meet the diverse needs of users with different weights and riding habits. In order to solve these problems, the present invention proposes a front shock absorber spring preload and damping adjustment integrated component, which can simultaneously realize external adjustment of the spring preload and damping of the shock absorber. Summary of the invention

[0003] The purpose of the present invention is to provide a front shock absorber spring preload and damping adjustment integrated component to solve the shortcomings of traditional front shock absorbers that often only have adjustable spring preload or fewer adjustable damping characteristics and cannot adapt to the diverse needs of users with different weights and riding habits.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A front shock absorber spring preload and damping adjustment integrated assembly, comprising:

[0006] Spring, spring seat, spring seat screw, guide seat, inner base, thrust bearing, preload screw, outer base, spring adjustment knob, damping rod, shock absorber barrel; the spring is installed on the positioning step of the spring seat and fixed to the top of the guide seat by the spring seat screw. The top of the guide seat passes through the inner base, and the bottom is supported by the thrust bearing and the preload screw. The outer thread of the preload screw cooperates with the inner thread of the outer base. The spring adjustment knob can drive the preload screw to rotate. Under the guidance of the thread, the preload screw will move along the axis, thereby realizing the adjustment of the spring preload. The inner base is provided with a central hole, and the damping rod passes through it, so that the damping can be adjusted externally;

[0007] Wherein, a thrust bearing is provided between the bottom end of the guide seat and the preload screw, which reduces the friction resistance when the preload screw and the guide seat rotate;

[0008] Among them, the size parameters of the central hole of the inner base change according to the form of the damping rod, and are adapted to different damping rods;

[0009] The top of the inner base has an inner base external thread, which is screwed into the bottom of the inner thread of the shock absorber barrel to achieve fastening;

[0010] The guide hole of the inner base and the guide seat form a clearance fit, so that the guide seat will not be skewed during the movement along the axis;

[0011] Among them, the positioning groove of the inner base can be installed with elastic elements such as sealing rings, and the sealing ring is clamped on the sealing ring groove on the spring adjustment knob, so that the spring adjustment knob is fixed on the inner base and plays a limiting role in adjusting the spring preload, and can also rotate freely;

[0012] Among them, the hexagonal protrusion of the inner base is a wrench position, which is convenient for installing the inner base using a socket wrench;

[0013] The external thread of the preload screw cooperates with the internal thread of the outer base to convert the rotational motion of the preload screw into motion along the axis;

[0014] Among them, the guide column on the spring adjustment knob is inserted into the guide hole of the preload screw. The spring adjustment knob only rotates without axial movement, which will drive the preload screw to rotate and produce axial movement, tightening or loosening the spring to achieve the effect of adjusting the spring preload;

[0015] The outer base is connected to the shock absorber body through the outer thread of the outer base, and when the thread is screwed to the bottom, it presses the inner base outer thread at the top of the inner base to achieve the fastening of the outer base and the inner base;

[0016] The internal thread of the outer base cooperates with the external thread of the preload screw to convert the rotational motion of the preload screw into motion along the axis;

[0017] Among them, there is a guide column on the spring adjustment knob, which is inserted into the guide hole of the preload screw. The spring adjustment knob only rotates without axial movement, which will drive the preload screw to rotate and produce axial movement, tightening or loosening the spring, so as to achieve the effect of adjusting the spring preload;

[0018] The sealing ring groove on the spring adjustment knob not only fixes the spring adjustment knob on the inner base, but also serves as a limit for adjusting the spring preload and can also rotate freely.

[0019] Among them, the outer protrusion of the knob makes it convenient to rotate the spring adjustment knob by hand to adjust the spring preload.

[0020] The present invention has the following technical effects:

[0021] The guide column on the spring adjustment knob is inserted into the guide hole of the preload screw. The preload screw is driven to rotate by rotating the spring adjustment knob. Under the cooperation of the external thread of the preload screw and the internal thread of the outer base, the rotational motion is converted into axial motion, and then the preload screw pushes the thrust bearing, and then pushes the guide seat. The guide seat passes through the inner base and is connected to the spring seat, and then pushes the spring installed on the spring seat, so as to realize the external adjustment of the spring preload.

[0022] The inner base has a central hole through which the damping rod passes, allowing the damping to be adjusted externally. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] FIG1 is a cross-sectional view of the present invention assembled on a front shock absorber;

[0024] FIG2 is an exploded view of the main body structure of the present invention;

[0025] FIG3 is a cross-sectional view of the main body structure of the present invention;

[0026] Fig. 4 is a perspective view of the inner base;

[0027] FIG5 is a perspective view of a preload screw;

[0028] Fig. 6 is a perspective view of the outer base;

[0029] FIG7 is a perspective view of a spring adjustment knob;

[0030] Among them: 100-spring, 200-spring seat, 300-spring seat screw, 400-guide seat, 500-inner base, 600-thrust bearing, 700-preload screw, 800-outer base, 900-spring adjustment knob, 1000-damping rod, 1100-shock absorber body, 501-inner base external thread, 502-inner base guide hole, 503-positioning groove, 504-hexagonal protrusion, 701-preload screw guide hole, 702-preload screw external thread, 801-outer base external thread, 802-outer base internal thread, 901-guide column, 902-sealing ring groove, 903-knob external protrusion. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] Referring to FIGS. 1 to 3 , a front shock absorber spring preload and damping adjustment integrated assembly includes a spring (100), a spring seat (200), a spring seat screw (300), a guide seat (400), an inner base (500), a thrust bearing (600), a preload screw (700), an outer base (800), a spring adjustment knob (900), a damping rod (1000), and a shock absorber barrel (1100), which is described in detail below.

[0034] Referring to FIG. 1 , the spring (100) is mounted on the positioning step of the spring seat (200) and fixed to the top of the guide seat (400) by the spring seat screw (300). The top of the guide seat (400) passes through the inner base (500), and the bottom is supported by the thrust bearing (600) and the preload screw (700). The preload screw (700) has an external thread (702) that cooperates with the internal thread (802) of the outer base (800). The spring adjustment knob (900) can drive the preload screw (700) to rotate. Under the guidance of the thread, the preload screw (700) will move along the axis, thereby realizing the adjustment of the spring preload. The inner base (500) is provided with a central hole, and the damping rod (1000) passes through it, so that the damping can be adjusted externally;

[0035] Referring to FIGS. 1 to 3 , a thrust bearing (600) is provided between the bottom end of the guide seat (400) and the preload screw (700), thereby reducing the friction resistance when the preload screw (700) and the guide seat (400) rotate. The size parameters of the central hole of the inner base (500) vary according to the form of the damping rod (1000), so as to adapt to different damping rods (1000);

[0036] Referring to Fig. 1 and Fig. 4, the top of the inner base (500) is provided with an inner base external thread (501), which is screwed into the bottom of the internal thread of the shock absorber barrel (1100) to achieve fastening; the inner base guide hole (502) forms a clearance fit with the guide seat (400), so that the guide seat will never be skewed during the movement along the axis; the positioning groove (503) can be installed with elastic elements such as a sealing ring, and the sealing ring is clamped on the sealing ring groove (902) on the spring adjustment knob (900), so that the spring adjustment knob (900) is fixed on the inner base (500) and plays a role in limiting the adjustment of the spring preload, and can also rotate freely; the hexagonal protrusion (504) is a wrench position, which is convenient for using a socket wrench to install the inner base (500);

[0037] 1 and 5 , the preload screw ( 700 ) has a preload screw external thread ( 702 ) that cooperates with the external base internal thread ( 802 ) to convert the rotational motion of the preload screw ( 700 ) into motion along the axis;

[0038] Referring to FIG. 5 and FIG. 7 , the guide post (901) on the spring adjustment knob (900) is inserted into the preload screw guide hole (701). The spring adjustment knob (900) only rotates without axial movement, which drives the preload screw (700) to rotate and generate axial movement, compressing or loosening the spring, thereby achieving the effect of adjusting the spring preload.

[0039] Referring to FIG. 1 and FIG. 6 , the outer base (800) is connected to the shock absorber barrel (1100) via the outer base external thread (801), and when the thread is screwed to the bottom, it presses the inner base external thread (501) at the top of the inner base (500), thereby fastening the outer base (800) and the inner base (500); the outer base internal thread (802) cooperates with the preload screw external thread (702) to convert the rotational motion of the preload screw (700) into motion along the axis;

[0040] Referring to FIG. 7 , a guide post (901) is provided on the spring adjustment knob (900) for inserting into the preload screw guide hole (701). The spring adjustment knob (900) only rotates without axial movement, which drives the preload screw (700) to rotate and generate axial movement, thereby compressing or loosening the spring, thereby achieving the effect of adjusting the spring preload. The sealing ring groove (902) allows the spring adjustment knob (900) to be fixed on the inner base (500) while limiting the adjustment of the spring preload and allowing it to rotate freely. The external protrusion (903) of the knob facilitates the use of the hand to rotate the spring adjustment knob (900) to achieve the adjustment of the spring preload.

[0041] During use, the guide column (901) on the spring adjustment knob (900) is inserted into the preload screw guide hole (701), and the preload screw (700) is driven to rotate by rotating the spring adjustment knob (900). Under the cooperation of the preload screw external thread (702) and the external base internal thread (802), the rotational motion is converted into axial motion, and then the preload screw (700) pushes the thrust bearing (600), and then pushes the guide seat (400). The guide seat passes through the inner base (500) and is connected to the spring seat (200), and then pushes the spring (100) installed on the spring seat (200), so as to realize the external adjustability of the spring preload;

[0042] The inner base (500) is provided with a central hole through which the damping rod (1000) passes, so that the damping can be adjusted externally.

Claims

1. A front shock absorber spring preload and damping adjustment integrated assembly, comprising a spring (100), a spring seat (200), a spring seat screw (300), a guide seat (400), an inner base (500), a thrust bearing (600), a preload screw (700), an outer base (800), a spring adjustment knob (900), a damping rod (1000), and a shock absorber barrel (1100). The spring (100) is installed on the positioning step of the spring seat (200) and fixed to the top of the guide seat (400) by the spring seat screw (300). The top of the guide seat (400) passes through the inner base (500), and the bottom is supported by the thrust bearing (600) and the preload screw (700). The outer thread (702) of the preload screw cooperates with the inner thread (802) of the outer base. The spring adjustment knob (900) can drive the preload screw (700) to rotate. Under the guidance of the thread, the preload screw (700) will move along the axis, thereby realizing the adjustment of the spring preload. The inner base (500) is provided with a central hole, and the damping rod (1000) passes through it. This allows the damping to be adjusted externally.

2. According to the front shock absorber spring preload and damping adjustment integrated assembly described in claim 1, there is a thrust bearing (600) between the bottom end of the guide seat (400) and the preload screw (700), which reduces the friction resistance when the preload screw (700) and the guide seat (400) rotate.

3. According to the front shock absorber spring preload and damping adjustment integrated assembly described in claim 1, the size parameters of the central hole of the inner base (500) change according to the form of the damping rod (1000) to adapt to different damping rods (1000).

4. According to the front shock absorber spring preload and damping adjustment integrated component described in claim 1, the top of the inner base (500) has an inner base external thread (501), which is screwed into the bottom of the internal thread of the shock absorber barrel (1100) to achieve tightening; the inner base guide hole (502) forms a clearance fit with the guide seat (400), so that the guide seat will never be skewed during movement along the axis; the positioning groove (503) can be installed with elastic elements such as a sealing ring, and the sealing ring is stuck in the sealing ring groove (902) on the spring adjustment knob (900), so that the spring adjustment knob (900) is fixed on the inner base (500) and plays a limiting role in the adjustment of the spring preload, and can also rotate freely; the hexagonal protrusion (504) is a wrench position, which is convenient for using a socket wrench to install the inner base (500).

5. According to a front shock absorber spring preload and damping adjustment integrated component as described in claim 1, the preload screw (700) has a preload screw external thread (702), which cooperates with the external base internal thread (802) to convert the rotational movement of the preload screw (700) into movement along the axis; the guide column (901) on the spring adjustment knob (900) is inserted into the preload screw guide hole (701), and the spring adjustment knob (900) only rotates without axial movement, which will drive the preload screw (700) to rotate and generate axial movement, tightening or loosening the spring, thereby achieving the effect of adjusting the spring preload.

6. According to the front shock absorber spring preload and damping adjustment integrated component described in claim 1, the outer base (800) is connected to the shock absorber body (1100) through the outer base external thread (801), and when the thread is screwed to the bottom, it will press the inner base external thread (501) at the top of the inner base (500), thereby fastening the outer base (800) and the inner base (500); the outer base internal thread (802) cooperates with the preload screw external thread (702) to convert the rotational motion of the preload screw (700) into motion along the axis.

7. According to claim 1, a front shock absorber spring preload and damping adjustment integrated component, the spring adjustment knob (900) is provided with a guide column (901), which is inserted into the preload screw guide hole (701), and the spring adjustment knob (900) only rotates without axial movement, which will drive the preload screw (700) to rotate and produce axial movement, compressing or loosening the spring, so as to achieve the effect of adjusting the spring preload; the sealing ring groove (902) enables the spring adjustment knob (900) to be fixed on the inner base (500) while limiting the adjustment of the spring preload, and can also rotate freely; the external protrusion (903) of the knob makes it convenient to use the hand to rotate the spring adjustment knob (900) to achieve the adjustment of the spring preload.

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