A shock absorbing front fork for a vehicle

Abstract

The utility model belongs to the technical field of front fork, especially involve a shock absorbing front fork for vehicle, include: riser, the joint plate is set up in one end of riser, two front shock absorbers, the both sides of one end of joint plate are set up mutually as symmetry, wherein front shock absorber includes: outer cylinder, its one end is provided with outer hydraulic chamber inward, support cylinder, fixedly set up in the inner side of outer cylinder, inner cylinder, set up in the outer cylinder and extend the outer cylinder, and the one end of inner cylinder towards outer cylinder forms inner hydraulic chamber inward, shock absorbing linkage component, set up in outer hydraulic chamber and extend into inner hydraulic chamber.

Description

Technical Field

[0001] This utility model belongs to the field of front fork technology, and in particular relates to a vehicle shock-absorbing front fork. Background Technology

[0002] The front fork is one of the two fixed brackets in an electric vehicle used to hold the front wheel in place. The front fork is located at the front of the structure. Its upper end is connected to the handlebar assembly, and its lower end cooperates with the front axle assembly to form the vehicle's steering system. Its role is crucial: controlling the direction and ensuring the safety of the rider in the face of forward inertia. Therefore, the front fork needs to have good shock absorption performance. Utility Model Content

[0003] The purpose of this invention is to address the aforementioned technical problems by providing a vehicle shock-absorbing fork with a simple structure and ideal cushioning effect.

[0004] In view of this, the present invention provides a vehicle shock-absorbing front fork, comprising: Riser; A connecting plate is installed at one end of the riser; Two front shock absorbers are symmetrically arranged on both sides of one end of the connecting plate; The front shock absorber includes: The outer cylinder has an inwardly directed external hydraulic cavity at one end. The support cylinder is fixedly installed inside the outer cylinder; The inner cylinder is set inside the outer cylinder and extends out of the outer cylinder, and an inner hydraulic cavity is formed inward at the end of the inner cylinder facing the outer cylinder. The shock-absorbing linkage component is located in the outer hydraulic cavity and extends into the inner hydraulic cavity.

[0005] In the above technical solution, the shock absorption linkage component further includes: The lower floating component is located at the bottom of the outer hydraulic chamber; The upper floating component is located above the lower floating component and extends into the inner hydraulic chamber.

[0006] In the above technical solution, the floating component further includes: The lower support spring is located at the bottom of the outer hydraulic chamber; The lower floating piston is located at the end of the lower support spring away from the bottom of the outer hydraulic chamber; The lower floating piston forms a lower buffer chamber at the bottom of the outer hydraulic chamber under the action of the lower support spring.

[0007] In the above technical solution, the floating component further includes: The middle support spring has one end abutting against the upper end of the lower floating piston and extends from the outer hydraulic chamber into the inner hydraulic chamber; The piston linkage is located in the inner hydraulic chamber and abuts against the other end of the central support spring; The upper support spring is located in the upper part of the inner hydraulic cavity, with one end abutting against the end of the inner hydraulic cavity and the other end abutting against the piston linkage component; Under the action of the upper support spring, the piston linkage forms an upper buffer chamber in the upper part of the inner hydraulic chamber; under the action of the middle support spring, the lower floating piston and piston linkage form a middle buffer chamber between the inner hydraulic chamber and the outer hydraulic chamber.

[0008] In the above technical solution, the piston linkage further includes: The middle floating piston has its lower end abutting against the middle support spring, its upper end forming an annular floating groove inward, and its lower end forming several buffer grooves communicating with the floating groove. The upper floating piston is located above the middle floating piston. Its upper end abuts against the upper support spring, and its lower end extends into the floating groove to form a matching floating block.

[0009] In the above technical solution, the floating groove is further characterized by a ring-shaped structure with a larger cross-section at the top and a smaller cross-section at the bottom; the floating groove is connected to the middle buffer cavity through the buffer groove, and when the upper floating piston moves upward to allow the floating block to detach from the floating groove, an inner buffer cavity is formed between the middle floating piston and the lower floating piston.

[0010] In the above technical solution, the shock absorption linkage component further includes: The positioning rod is fixed at one end to the upper end of the lower floating piston, and the other end extends upward and passes through the middle floating piston and the upper floating piston. The floating piston and the upper floating piston are slidably engaged with the positioning rod, and the positioning rod is coaxially arranged with the middle support spring.

[0011] In the above technical solution, furthermore, the positioning rod passes through one end of the upper floating piston to form a limiting edge.

[0012] In the above technical solution, further, the upper middle part of the lower floating piston extends upward to form a lower support part, the lower middle part of the middle floating piston extends downward to form an upper support part, and the two ends of the middle support spring are respectively limited and cooperated with the upper support part and the lower support part.

[0013] The beneficial effects of this utility model are as follows: 1. The design of the shock-absorbing linkage components gives the front fork a good cushioning and shock absorption effect, thereby ensuring the overall practicality of the front fork; 2. The formation of the upper, middle, lower, and inner buffer chambers makes the shock absorption and cushioning effect of the fork more ideal. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the cross-section of the front shock absorber of this utility model; Figure 3 This is a schematic diagram of the floating piston in this utility model from the first perspective; Figure 4 This is a schematic diagram of the floating piston in this utility model from a second perspective; The markings in the diagram are as follows: 1-Riser, 2-Connecting plate, 3-Outer cylinder, 4-Support cylinder, 5-Inner cylinder, 6-Lower support spring, 7-Lower floating piston, 8-Lower buffer chamber, 9-Middle support spring, 10-Upper support spring, 11-Upper buffer chamber, 12-Middle buffer chamber, 13-Middle floating piston, 14-Buffer groove, 15-Upper floating piston, 16-Floating block, 17-Inner buffer chamber, 18-Positioning rod, 19-Limiting edge, 20-Lower support part, 21-Upper support part. Detailed Implementation

[0015] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0016] Example 1: This embodiment provides a vehicle shock-absorbing front fork, including: Riser 1; Connecting plate 2 is installed at one end of riser 1; Two front shock absorbers are symmetrically arranged on both sides of one end of the connecting plate 2; The front shock absorber includes: The outer cylinder 3 has an inwardly arranged external hydraulic cavity at one end; The support cylinder 4 is fixedly installed inside the outer cylinder 3; The inner cylinder 5 is disposed inside the outer cylinder 3 and extends out of the outer cylinder 3, and an inner hydraulic cavity is formed inward at the end of the inner cylinder 5 facing the outer cylinder 3. The shock-absorbing linkage component is located in the outer hydraulic cavity and extends into the inner hydraulic cavity.

[0017] In this embodiment, the riser 1 is used to connect to the vehicle, and the connecting plate 2 connects the riser 1 to the two front shock absorbers, which are used to cooperate with the front axle components of the vehicle. The outer cylinder 3 of the front shock absorber is used to fix the support cylinder 4 and support the inner cylinder 5, and is connected to the front axle components; the support cylinder 4 is used to guide the inner cylinder 5; the inner support cylinder 4 is fixed to the outer cylinder 3 and connected to the connecting plate 2; and the shock-absorbing linkage component provides good shock absorption between the outer cylinder 3 and the inner cylinder 5, thereby giving the front shock absorber a good shock absorption effect; both the inner and outer hydraulic chambers are filled with hydraulic oil.

[0018] Example 2: This embodiment provides a vehicle shock-absorbing front fork, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0019] The shock absorption linkage components include: The lower floating component is located at the bottom of the outer hydraulic chamber; The upper floating component is located above the lower floating component and extends into the inner hydraulic chamber.

[0020] In this embodiment, the lower floating component provides buffer support at the bottom inside the outer cylinder 3; the upper floating component connects the inner cylinder 5 and the outer cylinder 3, ensuring a good connection between the inner cylinder 5 and the outer cylinder 3, and providing buffer and support to the inner cylinder 5 as it slides into the outer cylinder 3.

[0021] Example 3: This embodiment provides a vehicle shock-absorbing front fork, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0022] The floating components include: The lower support spring 6 is located at the bottom of the outer hydraulic cavity; The lower floating piston 7 is located at the end of the lower support spring 6 away from the bottom of the outer hydraulic chamber; The lower floating piston 7 forms a lower buffer chamber 8 at the bottom of the outer hydraulic chamber under the action of the lower support spring 6.

[0023] In this embodiment, the lower buffer chamber 8 is filled with hydraulic oil. When the upper floating assembly drives the lower floating piston 7 to move downward and squeeze the hydraulic oil in the lower buffer chamber 8, damping is generated. At the same time, the lower support spring 6 resets the lower floating piston 7, thereby forming a preliminary buffering and shock absorption effect in this process.

[0024] Example 4: This embodiment provides a vehicle shock-absorbing front fork, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0025] The floating components include: The middle support spring 9 has one end abutting against the upper end of the lower floating piston 7 and extends from the outer hydraulic chamber into the inner hydraulic chamber; The piston linkage is located in the inner hydraulic cavity and abuts against the other end of the middle support spring 9; The upper support spring 10 is located in the upper part of the inner hydraulic cavity, with one end abutting against the end of the inner hydraulic cavity and the other end abutting against the piston linkage component; Under the action of the upper support spring 10, the piston linkage forms an upper buffer chamber 11 in the upper part of the inner hydraulic chamber; under the action of the middle support spring 9, the lower floating plug and the piston linkage form a middle buffer chamber 12 between the inner hydraulic chamber and the outer hydraulic chamber.

[0026] In this embodiment, the middle support ring is supported between the piston linkage and the lower floating piston 7. When the piston linkage moves downward, it transmits part of the force to the lower floating piston 7, thereby driving the lower floating piston 7 to move downward and simultaneously allowing the piston linkage to reset. The middle buffer chamber 12 is filled with hydraulic oil, while the upper buffer chamber 11 contains uncompressed air. The downward displacement of the movable linkage compresses the hydraulic oil in the middle buffer chamber 12, generating damping. Simultaneously, it resets under the action of the middle support spring 9, thus again creating a buffering and shock-absorbing effect. The upper support spring 10 allows the piston linkage to float in the inner cylinder 5. During the process of the inner cylinder 5 pressing into the outer cylinder 3, the piston linkage moves towards the lower floating piston and also moves towards the upper end of the inner cylinder 5, thereby better creating a buffering and shock-absorbing effect and allowing the piston linkage to reset more effectively.

[0027] Example 5: This embodiment provides a vehicle shock-absorbing front fork, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0028] Piston linkage components include: The middle floating piston 13 has its lower end abutting against the middle support spring 9, its upper end forming an annular floating groove inward, and its lower end forming several buffer grooves 14 that communicate with the floating groove. The upper floating piston 15 is located above the middle floating piston 13. Its upper end abuts against the upper support spring 10, and its lower end extends into the floating groove to form a matching floating block 16.

[0029] In this embodiment, the middle floating piston 13 is used to contact the middle support spring 9, and the upper floating piston 15 is used to contact the upper floating piston 15. At the same time, during the process of the inner cylinder 5 pressing into the outer cylinder 3, the middle buffer chamber 12 is squeezed, allowing a portion of the hydraulic oil to enter the floating groove through the buffer groove 14 and squeeze the floating block 16 in the floating groove, thereby causing the upper floating piston 15 to move away from the middle floating piston 13 to compress the upper support spring 10 and achieve a better buffering and shock absorption effect.

[0030] Example 6: This embodiment provides a vehicle shock-absorbing front fork, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0031] The floating groove has a ring-shaped structure with a larger cross-section at the top and a smaller cross-section at the bottom. The floating groove is connected to the middle buffer cavity 12 through the buffer groove 14. When the upper floating piston 15 moves upward to allow the floating block 16 to leave the floating groove, an inner buffer cavity 17 is formed between the middle floating piston 13 and the lower floating piston 7.

[0032] In this embodiment, the floating groove has a ring-shaped structure with a larger cross-section at the top and a smaller cross-section at the bottom, which allows the floating block 16 to better detach from the floating groove and to better slide into the floating groove; at the same time, the inner buffer cavity 17 is set in the buffer cavity 12 during the compression of the piston linkage, which allows the hydraulic oil to have a certain flow space, thereby better buffering and shock absorption.

[0033] Example 7: This embodiment provides a vehicle shock-absorbing front fork, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0034] The shock absorption linkage components also include: The positioning rod 18 is fixed at one end to the upper end of the lower floating piston 7, and the other end extends upward and passes through the middle floating piston 13 and the upper floating piston 15. The floating piston 13 and the upper floating piston 15 are respectively slidably engaged with the positioning rod 18, and the positioning rod 18 is coaxially arranged with the middle support spring 9.

[0035] In this embodiment, the positioning rod 18 prevents the middle floating piston 13 and the upper floating piston 15 from shifting or misaligning, thereby ensuring the stability of the middle piston linkage.

[0036] Example 8: This embodiment provides a vehicle shock-absorbing front fork, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0037] The positioning rod 18 passes through one end of the upper floating piston 15 to form a limiting edge 19.

[0038] In this embodiment, the setting of the limiting edge 19 can limit the distance that the upper floating piston 15 moves away from the middle floating piston 13, so as to ensure the overall stability of the front shock absorber.

[0039] Example 9: This embodiment provides a vehicle shock-absorbing front fork, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0040] The lower floating piston 7 extends upward from the middle of its upper end to form a lower support portion 20, and the middle of the lower end of the middle floating piston 13 extends downward to form an upper support portion 21. The two ends of the middle support spring 9 are respectively limited and cooperated with the upper support portion 21 and the lower support portion 20.

[0041] In this embodiment, the upper support portion 21 and the lower support portion 20 limit the movement of the middle support spring 9, preventing the middle support spring 9 from becoming misaligned and ensuring the middle support spring 9 has good elastic support and shock absorption effect.

[0042] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A vehicle shock-absorbing front fork, characterized in that, include: Riser (1); Connecting plate (2) is installed at one end of riser (1); Two front shock absorbers are symmetrically arranged on both sides of one end of the connecting plate (2); The aforementioned front shock absorber includes: The outer cylinder (3) has an inwardly arranged external hydraulic cavity at one end; The support cylinder (4) is fixedly installed inside the outer cylinder (3); The inner cylinder (5) is set inside the outer cylinder (3) and extends out of the outer cylinder (3), and an inner hydraulic cavity is formed inward at the end of the inner cylinder (5) facing the outer cylinder (3); The shock-absorbing linkage component is located in the outer hydraulic cavity and extends into the inner hydraulic cavity.

2. The vehicle shock-absorbing front fork according to claim 1, characterized in that, The aforementioned shock absorption linkage component includes: The lower floating component is located at the bottom of the outer hydraulic chamber; The upper floating component is located above the lower floating component and extends into the inner hydraulic chamber.

3. A vehicle shock-absorbing front fork according to claim 2, characterized in that, The floating component includes: The lower support spring (6) is located at the bottom of the outer hydraulic cavity; The lower floating piston (7) is located at the end of the lower support spring (6) away from the bottom of the outer hydraulic chamber; The lower floating piston (7) forms a lower buffer chamber (8) at the bottom of the outer hydraulic chamber under the action of the lower support spring (6).

4. A vehicle shock-absorbing front fork according to claim 3, characterized in that, The floating component includes: The middle support spring (9) abuts against the upper end of the lower floating piston (7) and extends from the outer hydraulic chamber into the inner hydraulic chamber; The piston linkage is located in the inner hydraulic cavity and abuts against the other end of the middle support spring (9); The upper support spring (10) is set in the upper part of the inner hydraulic cavity, with one end abutting against the end of the inner hydraulic cavity and the other end abutting against the piston linkage. Under the action of the upper support spring (10), the piston linkage forms an upper buffer chamber (11) in the upper part of the inner hydraulic chamber; under the action of the middle support spring (9), the lower floating plug and the piston linkage form a middle buffer chamber (12) between the inner hydraulic chamber and the outer hydraulic chamber.

5. A vehicle shock-absorbing front fork according to claim 4, characterized in that, The piston linkage component includes: The middle floating piston (13) has its lower end abutting against the middle support spring (9), its upper end forming an annular floating groove inward, and its lower end forming several buffer grooves (14) connected to the floating groove. The upper floating piston (15) is located above the middle floating piston (13). Its upper end abuts against the upper support spring (10), and its lower end extends into the floating groove to form a matching floating block (16).

6. A vehicle shock-absorbing front fork according to claim 5, characterized in that, The floating groove is a ring structure with a larger cross-section at the top and a smaller cross-section at the bottom; the floating groove is connected to the middle buffer cavity (12) through the buffer groove (14), and when the upper floating piston (15) moves upward to make the floating block (16) leave the floating groove, an inner buffer cavity (17) is formed between the middle floating piston (13) and the lower floating piston (7).

7. A vehicle shock-absorbing front fork according to claim 6, characterized in that, The shock absorption linkage components also include: The positioning rod (18) is fixed at one end to the upper end of the lower floating piston (7) and the other end extends upward and passes through the middle floating piston (13) and the upper floating piston (15). The floating piston (13) and the upper floating piston (15) are respectively in sliding engagement with the positioning rod (18).

8. A vehicle shock-absorbing front fork according to claim 7, characterized in that, The positioning rod (18) passes through one end of the upper floating piston (15) to form a limiting edge (19).

9. A vehicle shock-absorbing front fork according to claim 8, characterized in that, The lower floating piston (7) extends upward to form a lower support part (20) at the middle of its upper end, and the middle floating piston (13) extends downward to form an upper support part (21) at the middle of its lower end. The two ends of the middle support spring (9) are respectively limited and cooperated with the upper support part (21) and the lower support part (20).

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