Shock absorber
By designing parallel central and offset holes at the lower end of the shock absorber, ensuring that the hole spacing is the same, the problem of numerous specifications and limited adaptability in existing technologies is solved, achieving wider applicability and economic benefits.
Patent Information
- Application Number
- CN202520172287.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-24
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2035-01-24
AI Technical Summary
There are numerous specifications of front shock absorbers for motorcycles and electric vehicles, but their compatibility is limited, resulting in high costs for manufacturers and difficulty for consumers to choose, failing to meet the diverse needs of the market.
Design a shock absorber with both a central hole and an off-center hole at the lower end, with the same hole spacing, suitable for different three-star columns, simplifying specification classification, and allowing installation via the central hole or the off-center hole.
It has improved the adaptability and economic efficiency of shock absorbers, reduced production costs, simplified the selection process, and expanded market coverage.
Smart Images
Figure CN223609181U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of shock absorber, and particularly relates to a shock absorber. BACKGROUND
[0002] The three-star column and the front shock absorber are key connecting components of a motorcycle and an electric vehicle, the three-star column is used for connecting a cock to the upper end of the front shock absorber, and the lower end of the front shock absorber is connected to a front wheel connecting structure. At present, there are various front shock absorbers with different core diameters on the market, and front shock absorbers with the same core diameter need to be classified and distinguished according to mounting hole positions and hole distances. This is because the mounting hole positions of the existing front shock absorbers connected to the front wheel have the following two kinds: one is a middle hole shock absorber, which is connected to the front wheel through a middle hole vertically opened on the axis of the front shock absorber, and the front shock absorber needs to be connected to a three-star column without an inclination angle; the other is a bias hole shock absorber, which is connected to the front wheel through a bias hole vertically opened behind the axis of the front shock absorber, and the front shock absorber needs to be connected to a three-star column with an inclination angle. At the same time, the hole distance of the middle hole of the front shock absorber with the same structure size is greater than the hole distance of the bias hole, wherein the hole distance refers to the vertical distance between the middle hole or the bias hole and the connecting hole of the three-star column connected to the front shock absorber, if the three-star column is connected to the front shock absorber through a clamp structure, the hole distance refers to the vertical distance between the middle hole or the bias hole and the upper end surface of the front shock absorber.
[0003] Therefore, it can be seen that the front shock absorbers on the market have many specifications but very single adaptability. When the front shock absorber of the motorcycle or the electric vehicle is repaired or modified, the front shock absorber with the core diameter, the hole distance and the mounting hole position all suitable for the original vehicle body needs to be selected and purchased, otherwise the three-star column needs to be replaced. For the manufacturers, the cost pressure is too large to design, produce and store so many specifications of the front shock absorbers, so only the specifications with large sales can be produced and sold, and the market demand cannot be fully met, so most of the modified shock absorbers on the market are bias holes. Correspondingly, for the consumers, it is difficult to select and purchase the front shock absorber, and the selection range is narrow. SUMMARY
[0004] The utility model discloses a kind of shock absorbers, it simultaneously has middle hole and bias hole, and middle hole and bias hole are designed in parallel, so that the hole distance of middle hole and the hole distance of bias hole are identical, to simplify the specification classification of shock absorber, reduce the cost pressure of manufacturer, can be installed according to actual original three-star column middle hole or bias hole, with wide adaptability, practicality and economic benefit is higher.
[0005] The utility model is implemented as follows:
[0006] A shock absorber, comprising a shock absorber body, the upper end of the shock absorber body is connected with a three-star column, the lower end of the shock absorber body is longitudinally provided with a middle hole and a bias hole which are parallel to the axis, the axis of the middle hole is perpendicular to and intersects with the axis of the shock absorber body, and the bias hole is horizontally distributed on the left side or the right side of the middle hole.
[0007] In the shock absorber, the lower end of the shock absorber body is longitudinally provided with a code conversion hole which is located on one side of the axis of the shock absorber body.
[0008] In the shock absorber, the shock absorber body comprises a shock absorber base, a hydraulic cylinder and an inner cylinder which are fixed on the shock absorber base, the inner cylinder is sleeved on the outer periphery of the hydraulic cylinder, the upper end of the inner cylinder is axially sleeved with an outer cylinder, the outer cylinder and the shock absorber base are provided with a damping device, the upper end of the outer cylinder is connected with the three-star column, and the middle hole and the bias hole are arranged on the shock absorber base below the hydraulic cylinder and the inner cylinder.
[0009] In the shock absorber, the damping device comprises a damping sleeve which is fixed on the outer cylinder and located between the inner cylinder and the hydraulic cylinder, and a damping shock absorber spring is arranged between the lower end of the damping sleeve and the shock absorber base.
[0010] In the shock absorber, the damping device comprises a piston rod which is fixed on the outer cylinder, the lower end of the piston rod extends into the hydraulic cylinder and is sleeved with a piston valve body, the piston valve body divides the inner cavity of the hydraulic cylinder into an upper oil cavity and a lower oil cavity, the piston valve body is provided with a one-way assembly which allows oil to flow in one direction between the upper oil cavity and the lower oil cavity, and a piston spring is arranged between the piston valve body and one of the inner end faces of the hydraulic cylinder.
[0011] In the shock absorber, the inner cylinder and the outer cylinder are in dynamic sealing cooperation, the hydraulic cylinder, the inner cylinder and the outer cylinder form a damping flow channel, the upper oil cavity and the lower oil cavity are respectively provided with an upper through hole and a lower through hole which are communicated with the damping flow channel, the one-way assembly of the piston valve body allows oil to flow from the lower oil cavity to the upper oil cavity, and a one-way valve seat is arranged in the hydraulic cylinder above the lower through hole, and the one-way valve seat allows oil to flow from the lower through hole to the piston valve body.
[0012] In the shock absorber, the one-way assembly comprises a one-way through hole one which is axially arranged on the piston valve body, and a one-way valve piece one which is arranged on the piston valve body in the upper oil cavity and can cover and block the one-way through hole one; the one-way valve seat is axially provided with a one-way through hole two, and a one-way valve piece two is arranged on the one-way valve seat away from the upper through hole and can cover and block the one-way through hole two.
[0013] Compared with the prior art, the utility model has the advantages of:
[0014] The utility model discloses simple structure, reasonable in design and wide adaptability, through the parallel distribution of the middle hole and the eccentric hole of the lower end of the shock absorber, the hole distance of the middle hole is same with the hole distance of the eccentric hole, thereby can install the middle hole or eccentric hole according to the actual original three star column, for the manufacturer, effectively simplifies the specification classification of shock absorber, reduces cost pressure, can expand the design, production and inventory of different specifications shock absorber to meet market demand, and the economic benefit is higher, and correspondingly, the consumer only needs to determine the core diameter and hole distance to select the matching shock absorber, and the selection difficulty is reduced, and it is easier to select the shock absorber of the heart damper shock absorbing structure. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is the overall perspective of the utility model;
[0016] Figure 2 It is the overall sectional view of the utility model.
[0017] In the drawing: 1, middle hole; 2, eccentric hole; 3, code hole; 4, shock absorber base; 5, hydraulic cylinder; 6, inner cylinder; 7, outer cylinder; 8, damping sleeve; 9, damping shock spring; 10, piston rod; 11, piston valve body; 12, piston spring; 13, lower through hole; 14, one-way valve seat; 15, one-way through hole one; 16, one-way valve piece one; 17, one-way through hole two; 18, one-way valve piece two. PREFERRED EMBODIMENT
[0018] The utility model will be further described in the specific embodiment, and see Figure 1 -2:
[0019] A shock absorber, including the shock absorber main part, the upper end of shock absorber main part is connected with three star column, the lower end of shock absorber main part is along longitudinal and is provided with the middle hole 1 and eccentric hole 2 of parallel axis, the axis of middle hole 1 is perpendicular with the axis of shock absorber main part and intersects, and eccentric hole 2 is distributed in the left side or right side of middle hole 1 along horizontal transverse.
[0020] The utility model discloses simple structure, reasonable in design and wide adaptability, through the parallel distribution of the middle hole and the eccentric hole of the lower end of the shock absorber, the hole distance of the middle hole is same with the hole distance of the eccentric hole, thereby can install the middle hole or eccentric hole according to the actual original three star column, for the manufacturer, effectively simplifies the specification classification of shock absorber, reduces cost pressure, can expand the design, production and inventory of different specifications shock absorber to meet market demand, and the economic benefit is higher, and correspondingly, the consumer only needs to determine the core diameter and hole distance to select the matching shock absorber, and the selection difficulty is reduced, and it is easier to select the shock absorber of the heart damper shock absorbing structure.
[0021] Further, in order to connect the brake caliper with the shock absorber to ensure that the brake caliper can normally brake the front wheel, the lower end of the shock absorber body is longitudinally provided with a rotating code hole 3 located on one side of the shock absorber body axis. That is, the shock absorber and the brake caliper are connected and fixed by the rotating code plate, and the rotating code hole 3 is used for the fixed connection of the rotating code plate. At the same time, based on the fact that the shock absorber has the middle hole 1 and the eccentric hole 2, the rotating code plate can be designed in two different shapes to be connected with the brake caliper when the middle hole 1 and the eccentric hole 2 are installed.
[0022] In addition, the specific structure of the shock absorber body is that the shock absorber body includes a shock absorber base 4, a hydraulic cylinder 5 and an inner cylinder 6 fixed on the shock absorber base 4, the inner cylinder 6 is sleeved on the outer periphery of the hydraulic cylinder 5, and the upper end of the inner cylinder 6 is axially sleeved with an outer cylinder 7, the outer cylinder 7 and the shock absorber base 4 have a damping device, the upper end of the outer cylinder 7 is connected with a three-star column, and the middle hole 1 and the eccentric hole 2 are arranged on the shock absorber base 4 below the hydraulic cylinder 5 and the inner cylinder 6.
[0023] Further, the damping device includes a damping sleeve 8 fixed on the outer cylinder 7 and located between the inner cylinder 6 and the hydraulic cylinder 5, and a damping shock spring 9 is arranged between the lower end of the damping sleeve 8 and the shock absorber base 4. The damping device further includes a piston rod 10 fixed on the outer cylinder 7, the lower end of the piston rod 10 extends into the hydraulic cylinder 5 and is sleeved with a piston valve body 11, the piston valve body 11 divides the inner cavity of the hydraulic cylinder 5 into an upper oil chamber and a lower oil chamber, the piston valve body 11 has a one-way assembly allowing oil to flow in one direction between the upper oil chamber and the lower oil chamber, and a piston spring 12 is arranged between the piston valve body 11 and one of the inner end faces of the hydraulic cylinder 5.
[0024] In order to make the oil have a longer flow path to have a better damping effect, the inner cylinder 6 and the outer cylinder 7 are dynamically sealed, the hydraulic cylinder 5, the inner cylinder 6 and the outer cylinder 7 form a damping flow channel, the upper oil chamber and the lower oil chamber are respectively provided with an upper through hole and a lower through hole 13 communicating with the damping flow channel, the one-way assembly of the piston valve body 11 allows oil to flow from the lower oil chamber to the upper oil chamber, a one-way valve seat 14 is arranged above the lower through hole 13 in the hydraulic cylinder 5, and the one-way valve seat 14 allows oil to flow from the lower through hole 13 to the piston valve body 11. Further, the one-way assembly includes a one-way through hole 15 axially arranged on the piston valve body 11, and a one-way valve plate 16 arranged on the piston valve body 11 in the upper oil chamber and capable of covering and sealing the one-way through hole 15; the one-way valve seat 14 is axially provided with a one-way through hole 17, and the one-way valve seat 14 away from the upper through hole is provided with a one-way valve plate 18 capable of covering and sealing the one-way through hole 17.
[0025] Of course, the hydraulic cylinder 5 can also be a closed structure, and the one-way assembly on the piston valve body 11 can be a one-way flow channel designed in two opposite one-way flow directions, and each one-way flow channel is provided with a blocking valve plate at the corresponding end; when the piston valve body 11 moves downward in the hydraulic cylinder 5, the oil flows from the lower oil chamber to the upper oil chamber through one one-way flow channel and opens the corresponding blocking valve plate; and when the piston valve body 11 moves upward in the hydraulic cylinder 5, the oil flows from the upper oil chamber to the lower oil chamber through the other one-way flow channel and opens the corresponding blocking valve plate.
[0026] The above embodiment is only one of the preferred embodiments of the present application, and does not limit the scope of the present application. Therefore, any equivalent changes made in shape, structure, principle, etc. according to the present application should be covered within the scope of protection of the present application.
Claims
1. A shock absorber comprising a shock absorber main body, an upper end of the shock absorber main body being connected to a three-star column, characterized in that: The lower end of the shock absorber body is longitudinally provided with a central hole (1) and a bias hole (2) parallel to the axis, the axis of the central hole (1) is perpendicular to and intersects with the axis of the shock absorber body, and the bias hole (2) is horizontally distributed on the left or right side of the central hole (1).
2. A shock absorber according to claim 1, characterized in that: The lower end of the shock absorber body is longitudinally provided with a code hole (3), and the code hole (3) is located on one side of the axis of the shock absorber body.
3. A shock absorber according to claim 1, characterized in that: The shock absorber body comprises a shock absorber base (4), a hydraulic cylinder (5) and an inner cylinder (6) fixed at the lower end of the shock absorber base (4), the inner cylinder (6) is sleeved on the outer periphery of the hydraulic cylinder (5), and the upper end of the inner cylinder (6) is axially sleeved with an outer cylinder (7), the outer cylinder (7) and the shock absorber base (4) have a damping device, the upper end of the outer cylinder (7) is connected with a three-star column, and the central hole (1) and the bias hole (2) are arranged on the shock absorber base (4) below the hydraulic cylinder (5) and the inner cylinder (6).
4. A shock absorber according to claim 3, characterised in that: The damping device comprises a damping sleeve (8) fixed at the upper end of the outer cylinder (7) and located between the inner cylinder (6) and the hydraulic cylinder (5), and a damping shock spring (9) is arranged between the lower end of the damping sleeve (8) and the shock absorber base (4).
5. A shock absorber according to claim 3 or 4, characterised in that: The damping device comprises a piston rod (10) fixed at the upper end of the outer cylinder (7), the lower end of the piston rod (10) extends into the hydraulic cylinder (5) and is sleeved with a piston valve body (11), the piston valve body (11) divides the inner cavity of the hydraulic cylinder (5) into an upper oil cavity and a lower oil cavity, the piston valve body (11) has a one-way assembly allowing oil to flow in one direction between the upper oil cavity and the lower oil cavity, and a piston spring (12) is arranged between the piston valve body (11) and one of the inner end faces of the hydraulic cylinder (5).
6. A shock absorber according to claim 5, characterised in that: The inner cylinder (6) and the outer cylinder (7) are dynamically sealed, the hydraulic cylinder (5), the inner cylinder (6) and the outer cylinder (7) form a damping flow channel, the upper oil cavity and the lower oil cavity are respectively provided with an upper through hole and a lower through hole (13) communicating with the damping flow channel, the one-way assembly of the piston valve body (11) allows oil to flow from the lower oil cavity to the upper oil cavity, a one-way valve seat (14) is arranged above the lower through hole (13) in the hydraulic cylinder (5), and the one-way valve seat (14) allows oil to flow from the lower through hole (13) to the piston valve body (11).
7. A shock absorber according to claim 6, characterised in that: The one-way assembly comprises a one-way through hole one (15) axially arranged on the piston valve body (11), and a one-way valve plate one (16) arranged on the piston valve body (11) in the upper oil cavity and capable of covering and sealing the one-way through hole one (15); the one-way valve seat (14) is axially provided with a one-way through hole two (17), and the one-way valve seat (14) on the side away from the upper through hole is provided with a one-way valve plate two (18) capable of covering and sealing the one-way through hole two (17).