Damper with drive-by-wire structure

Abstract

The utility model discloses a drive-by-wire structure damper which comprises a cylinder barrel, a valve element control rod is installed at one end of the inner side of the cylinder barrel, and the damper can be controlled to be locked or unlocked through connection of valve element control and a drive-by-wire structure of a bicycle. A piston rod is arranged at the other end of the cylinder barrel, a damping adjusting sleeve is connected to the end, inserted into the cylinder barrel, of the piston rod, and a piston ring is arranged on the outer side of the damping adjusting sleeve; an adjusting rod is arranged in the piston rod, a damping adjusting plug is arranged at the end, facing the damping adjusting sleeve, of the adjusting rod, the damping adjusting plug is inserted into the inner side of the damping adjusting groove, and a variable damping groove is formed between the damping adjusting plug and the damping adjusting sleeve; a connecting pipe is installed at the other end of the piston rod, a rotary knob is arranged at the end of the connecting pipe, a rotating shaft is arranged in the middle of the rotary knob, the rotating shaft is connected with an adjusting graduator, the adjusting graduator is connected with an adjusting rod, the adjusting graduator and the adjusting rod are controlled through rotation of the rotary knob, and therefore the purpose of adjusting damping is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of dampers, in particular to a wire-controlled structural damper. Background Art

[0002] In the bicycle industry, damper design is key to enhancing riding comfort and control. Traditional dampers include hydraulic dampers and spring-loaded dampers. These dampers are installed on the bicycle's front fork to reduce vibration while the bicycle is in motion. As technology advances, dampers are also being upgraded. Some bicycles now feature lockable dampers. These include shoulder-operated dampers and cable-operated dampers. Shoulder-operated dampers can only be locked after the bicycle is parked, while cable-operated dampers can be locked while the bicycle is in motion by pulling a cable.

[0003] In the prior art, Chinese patent number CN201920435212.0 discloses a remote-controlled hydraulic rod for a shock-absorbing front fork, comprising a hydraulic rod body, a locking member mounted on one end of the hydraulic rod body, a Euro ring mounted on the lower end of the locking member, a retaining ring mounted on the Euro ring, a guide rod mounted on the lower end of the retaining ring, a push rod mounted on the guide rod, one end of the push rod pressing against the top of the guide rod, the other end pressing against the inside of a positioning rubber ring, the other end of the positioning rubber ring being fixed to the inner end of the guide rod, the guide rod being clamped inside an oil stopper, and the oil stopper being mounted on the other end of the hydraulic rod body. This remote-controlled hydraulic rod avoids piston head locking by adopting a push rod and a positioning rubber ring matching structure, and adopts a Euro ring, which has good sealing and silent effects. The remote-controlled hydraulic rod has a simple and effective structure, convenient and smooth front fork locking, no noise, and low manufacturing cost.

[0004] The remote-controlled hydraulic rod provided by the above patent has good sealing and quieting effects, but this remote-controlled hydraulic rod does not have a damping adjustment structure, resulting in the damping effect of the remote-controlled hydraulic rod being unable to be adjusted according to usage requirements, which in turn leads to poor applicability of the entire remote-controlled hydraulic rod. Utility Model Content

[0005] The purpose of the utility model is to provide a wire-controlled structural damper, aiming to improve the problem that the existing wire-controlled oil pressure rod does not have a damping adjustment structure, resulting in the damping effect of the wire-controlled oil pressure rod being unable to be adjusted according to usage requirements, and further resulting in poor applicability of the entire wire-controlled oil pressure rod.

[0006] The utility model is achieved in this way:

[0007] The cam is connected to the control wheel of the bicycle by the control of the valve core, and the cam is connected to the control wheel of the bicycle by the control wheel of the valve core. The cam is connected to the control wheel of the bicycle by the control wheel of the valve core. The cam is connected to the control wheel of the bicycle by the control wheel of the valve core. The cam is connected to the control wheel of the bicycle by the control wheel of the valve core. The cam is connected to the control wheel of the bicycle by the control wheel of the valve core. The cam is connected to the control wheel of the bicycle by the control wheel of the valve core. The cam is connected to the control wheel of the bicycle by the control wheel of the valve core. The cam is connected to the control wheel of the bicycle by the control wheel of the valve core. The cam is connected to the control wheel of the bicycle by the control wheel of the valve core.

[0008] Preferably, a gasket is provided along the inner side of the cylinder at one end where the piston rod is provided, a first O-ring is provided between the gasket and the cylinder, a sealing guide sleeve is provided on the inner side of the gasket, and a retaining ring is provided along the inner side of the cylinder at one end away from the sealing guide sleeve.

[0009] Preferably, a tail sleeve is provided along the inner side of the cylinder at one end where a valve core control rod is provided, a sleeve hole is provided in the middle of the tail sleeve, a mounting groove is provided at the end of the tail sleeve facing the inner side of the cylinder, and a limiting convex ring is provided on the inner side of the mounting groove.

[0010] Preferably, a sleeve is provided on one end of the valve core control rod inserted into the cylinder, and a plurality of third O-rings are provided on the outer side surface of the end of the sleeve facing the tail sleeve, and a limiting groove is provided along the front end of the plurality of third O-rings of the sleeve, and the limiting groove is connected with the limiting convex ring by snapping.

[0011] Preferably, the end of the sleeve facing the inner side of the cylinder is clamped with a valve body, the inner side of the valve body is provided with a limiting ring, the limiting ring is clamped on the sleeve, and a fourth O-ring is provided between the sleeve and the valve body; the end of the valve core control rod inserted into the valve body is provided with a valve core, and a fifth O-ring is provided between the valve core and the valve body; the valve body is provided with a flow hole along the front end of the valve core, and the valve core can seal the flow hole under the control of the valve core control rod.

[0012] Preferably, a connector is installed on the outside of the front end of the valve body, and a sixth O-ring is provided between the connector and the cylinder; a disc spring is provided between the rear end of the connector and the valve body, a plug is installed on the front end of the valve body, and a seventh O-ring is provided between the plug and the valve body, and a telescopic spring is provided between the plug and the connector.

[0013] Preferably, an overpressure relief valve plate is installed at the position where the damping adjustment sleeve fits against the tail end of the piston ring, a second O-ring is provided between the piston ring and the cylinder, a one-way valve plate is provided between the damping adjustment sleeve and the front end of the piston ring, and the one-way valve plate and the damping adjustment sleeve are pressed against the piston ring via a conical spring.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. A damping adjustment sleeve is installed on the inner side of the piston ring of the utility model, and a damping adjustment plug is provided on the end of the adjusting rod and inserted into the inner side of the damping adjustment sleeve. A variable damping groove is formed between the damping adjustment plug and the damping adjustment sleeve. By turning the knob to control the adjusting rod, the adjusting rod can drive the damping adjustment plug to move, thereby making the variable damping groove larger or smaller. By changing the size of the variable damping groove, the damping size of the entire damper can be changed, which is convenient for adjusting the damping size of the damper according to usage requirements.

[0016] 2. The piston of the utility model is provided with an overpressure relief valve plate. Under the action of the overpressure relief valve plate, the pressure inside the damper is automatically released when it is too high, ensuring that the entire damper will not be easily damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of the utility model as a whole from the main perspective;

[0018] Figure 2 It is a cross-sectional schematic diagram of the entire utility model from the main viewing angle;

[0019] Figure 3 It is a structural diagram of the cylinder of the utility model;

[0020] Figure 4 It is a structural diagram of the piston rod of the utility model;

[0021] Figure 5 It is a structural diagram of the valve core control rod of the utility model.

[0022] In the figure: 1. Cylinder; 11. Gasket; 12. First O-ring; 13. Sealing guide sleeve; 14. Retaining ring; 15. Tail sleeve; 16. Bushing hole; 17. Mounting groove; 18. Stop ring; 2. Piston rod; 21. Connecting pipe; 22. Knob; 23. Rotating shaft; 24. Adjusting indexer; 25. Adjusting rod; 251. Damping adjustment plug; 252. Variable damping groove; 26. Damping adjustment sleeve; 261. Overpressure relief valve plate; 27 , piston ring; 271, second O-ring; 28, one-way valve plate; 3, valve core control rod; 31, sleeve; 32, third O-ring; 33, limiting groove; 34, valve core; 35, fourth O-ring; 36, valve body; 361, limiting ring; 362, flow hole; 363, fifth O-ring; 37, disc spring; 38, connector; 382, ​​sixth O-ring; 39, plug; 391, telescopic spring; 392, seventh O-ring. DETAILED DESCRIPTION

[0023] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0024] The following is a further description with reference to the accompanying drawings and specific embodiments:

[0025] Example 1

[0026] like Figure 1 、 Figure 2 and Figure 4As shown, a wire-controlled damper includes a cylinder 1, with a valve core control rod 3 mounted on one end of the cylinder 1. This valve core 34 connects to the bicycle's wire-controlled structure and can lock or unlock the damper. A piston rod 2 is mounted on the other end of the cylinder 1, which is used to extend and retract to provide damping and shock absorption. The end of the piston rod 2 inserted into the cylinder 1 is connected to a damping adjustment sleeve 26, which is fitted with a piston ring 27. An adjustment rod 25 is mounted within the piston rod 2, and a damping adjustment plug 251 is mounted on the end of the adjustment rod 25 facing the damping adjustment sleeve 26. This plug 251 is inserted into a damping adjustment slot, forming a variable damping slot 252 between the plug 251 and the damping adjustment sleeve 26. This structure allows the size of the variable damping slot 252 to be changed through control and adjustment, and the damping level of the damper to be varied by changing the size of the variable damping slot 252, facilitating flexible use of the wire-controlled damper. A connecting tube 21 is installed at the other end of the piston rod 2, and a knob 22 is provided at the end of the connecting tube 21. A rotating shaft 23 is provided in the middle of the knob 22. The rotating shaft 23 is connected to an adjusting indexer 24, and the adjusting indexer 24 is connected to the adjusting rod 25. The adjusting indexer 24 and the adjusting rod 25 are controlled by rotating the knob 22, so as to achieve the purpose of adjusting the damping size.

[0027] like Figure 3 As shown, a gasket 11 is provided along the inner side of the cylinder 1 at the end where the piston rod 2 is located. A first O-ring 12 is provided between the gasket 11 and the cylinder 1. A sealing guide sleeve 13 is provided on the inner side of the gasket 11. A retaining ring 14 is provided on the inner side of the cylinder 1 at the end away from the gasket 11. This structure facilitates sealing between the cylinder 1 and the piston rod 2, preventing dust from entering the cylinder 1 through the gap between the cylinder 1 and the piston rod 2, and also prevents the damping oil inside the cylinder 1 from leaking. A tail sleeve 15 is provided along the inner side of the cylinder 1 at the end where the valve core control rod 3 is located. A sleeve hole 16 is provided in the middle of the sleeve 15. The sleeve 15 and the sleeve hole 16 are conveniently mounted on the valve core control rod 3, facilitating the extension and retraction of the valve core control rod 3. A mounting groove 17 is provided on the end of the sleeve 15 facing the inner side of the cylinder 1. The mounting groove 17 facilitates the installation of the sleeve 31 and facilitates the connection of the sleeve 31 to the tail sleeve 15. A limiting protrusion 18 is provided on the inner side of the installation groove 17 , and the limiting protrusion 18 is used to stably connect with the sleeve 31 .

[0028] like Figure 5As shown, the end of the valve core control rod 3 inserted into the cylinder barrel 1 is sleeved with a sleeve 31. The outer side of the sleeve 31 facing the tail sleeve 15 is provided with multiple third O-rings 32. A retaining groove 33 is provided along the front end of the sleeve 31, which engages with the retaining protrusion 18. This structure facilitates the stable connection of the valve core control rod 3 with the tail sleeve 15, allowing the valve core control rod 3 to be used stably with the tail plug. The end of the sleeve 31 facing the inside of the cylinder barrel 1 is secured to a valve body 36. A retaining ring 361 is provided on the inner side of the valve body 36, which engages with the sleeve 31. A fourth O-ring 35 is provided between the sleeve 31 and the valve body 36. This structure facilitates the stable connection of the valve body 36 with the sleeve 31, ensuring sufficient stability of the valve body 36. A valve core 34 is provided at one end of the valve core control rod 3 inserted into the valve body 36, and a fifth O-ring 363 is provided between the valve core 34 and the valve body 36; the valve body 36 is provided with a flow hole 362 along the front end of the valve core 34. The valve core 34 can block the flow hole 362 under the control of the valve core control rod 3, thereby conveniently blocking the flow hole 362 by controlling the valve core 34, so that the damping oil cannot flow, thereby achieving the purpose of controlling or locking the damper.

[0029] Working Principle: To use the damper, install it on a bicycle and connect the valve core control lever 3 to the bicycle's wire control mechanism. The valve core control lever 3 controls the valve core 34 by pulling the wire to block the convection channel, thereby locking the damper. To adjust the damping force, simply turn the knob 22. This knob drives the adjustment indexer 24 and the adjustment lever 25 to adjust the size of the variable damping slot 252. Changing the size of the variable damping slot 252 changes the damping force of the entire damper. Compared with the prior art, a damping adjustment sleeve 26 is installed on the inner side of the piston ring 27 of the present application, and a damping adjustment plug 251 is provided at the end of the adjusting rod 25, which is inserted into the inner side of the damping adjustment sleeve 26. A variable damping groove 252 is formed between the damping adjustment plug 251 and the damping adjustment sleeve 26. The adjusting rod 25 is controlled by rotating the knob 22, so that the adjusting rod 25 can drive the damping adjustment plug 251 to move, thereby making the variable damping groove 252 larger or smaller. By changing the size of the variable damping groove 252, the damping size of the entire damper can be changed, which is convenient for adjusting the damping size of the damper according to usage requirements.

[0030] Example 2

[0031] like Figure 1 、 Figure 2 and Figure 4As shown, a wire-controlled damper includes a cylinder 1, with a valve core control rod 3 mounted on one end of the cylinder 1. This valve core 34 connects to the bicycle's wire-controlled structure and can lock or unlock the damper. A piston rod 2 is mounted on the other end of the cylinder 1, which is used to extend and retract to provide damping and shock absorption. The end of the piston rod 2 inserted into the cylinder 1 is connected to a damping adjustment sleeve 26, which is fitted with a piston ring 27. An adjustment rod 25 is mounted within the piston rod 2, and a damping adjustment plug 251 is mounted on the end of the adjustment rod 25 facing the damping adjustment sleeve 26. This plug 251 is inserted into a damping adjustment slot, forming a variable damping slot 252 between the plug 251 and the damping adjustment sleeve 26. This structure allows the size of the variable damping slot 252 to be changed through control and adjustment, and the damping level of the damper to be varied by changing the size of the variable damping slot 252, facilitating flexible use of the wire-controlled damper. A connecting tube 21 is installed at the other end of the piston rod 2, and a knob 22 is provided at the end of the connecting tube 21. A rotating shaft 23 is provided in the middle of the knob 22. The rotating shaft 23 is connected to an adjusting indexer 24, and the adjusting indexer 24 is connected to the adjusting rod 25. The adjusting indexer 24 and the adjusting rod 25 are controlled by rotating the knob 22, so as to achieve the purpose of adjusting the damping size.

[0032] like Figure 3 As shown, a gasket 11 is provided along the inner side of the cylinder 1 at the end where the piston rod 2 is located. A first O-ring 12 is provided between the gasket 11 and the cylinder 1. A sealing guide sleeve 13 is provided on the inner side of the gasket 11. A retaining ring 14 is provided on the inner side of the cylinder 1 at the end away from the gasket 11. This structure facilitates sealing between the cylinder 1 and the piston rod 2, preventing dust from entering the cylinder 1 through the gap between the cylinder 1 and the piston rod 2, and also prevents the damping oil inside the cylinder 1 from leaking. A tail sleeve 15 is provided along the inner side of the cylinder 1 at the end where the valve core control rod 3 is located. A sleeve hole 16 is provided in the middle of the sleeve 15. The sleeve 15 and the sleeve hole 16 are conveniently mounted on the valve core control rod 3, facilitating the extension and retraction of the valve core control rod 3. A mounting groove 17 is provided on the end of the sleeve 15 facing the inner side of the cylinder 1. The mounting groove 17 facilitates the installation of the sleeve 31 and facilitates the connection of the sleeve 31 to the tail sleeve 15. A limiting protrusion 18 is provided on the inner side of the installation groove 17 , and the limiting protrusion 18 is used to stably connect with the sleeve 31 .

[0033] like Figure 5As shown, the end of the valve core control rod 3 inserted into the cylinder barrel 1 is sleeved with a sleeve 31. The outer side of the sleeve 31 facing the tail sleeve 15 is provided with multiple third O-rings 32. A retaining groove 33 is provided along the front end of the sleeve 31, which engages with the retaining protrusion 18. This structure facilitates the stable connection of the valve core control rod 3 with the tail sleeve 15, allowing the valve core control rod 3 to be used stably with the tail plug. The end of the sleeve 31 facing the inside of the cylinder barrel 1 is secured to a valve body 36. A retaining ring 361 is provided on the inner side of the valve body 36, which engages with the sleeve 31. A fourth O-ring 35 is provided between the sleeve 31 and the valve body 36. This structure facilitates the stable connection of the valve body 36 with the sleeve 31, ensuring sufficient stability of the valve body 36. A valve core 34 is provided at one end of the valve core control rod 3 inserted into the valve body 36, and a fifth O-ring 363 is provided between the valve core 34 and the valve body 36; the valve body 36 is provided with a flow hole 362 along the front end of the valve core 34. The valve core 34 can block the flow hole 362 under the control of the valve core control rod 3, thereby conveniently blocking the flow hole 362 by controlling the valve core 34, so that the damping oil cannot flow, thereby achieving the purpose of controlling or locking the damper.

[0034] like Figure 5 As shown, a connector 38 is installed on the outer side of the front end of the valve body 36, and a sixth O-ring 382 is provided between the connector 38 and the cylinder 1; a disc spring 37 is provided between the rear end of the connector 38 and the valve body 36, a plug 39 is installed on the front end of the valve body 36, a seventh O-ring 392 is provided between the plug 39 and the valve body 36, and a telescopic spring 391 is provided between the plug 39 and the connector 38; this structure is convenient for the connector 38 to move backward under pressure, and at this time a gap is opened between the connector 38 and the plug 39, and the damping oil can flow through the gap to achieve the purpose of overpressure overflow.

[0035] like Figure 4 As shown, an overpressure relief valve disc 261 is installed at the position where the damping adjustment sleeve 26 abuts the rear end of the piston ring 27. A second O-ring 271 is installed between the piston ring 27 and the cylinder 1. A one-way valve disc 28 is installed between the damping adjustment sleeve 26 and the front end of the piston ring 27. The one-way valve disc 28 and the damping adjustment sleeve 26 are pressed against the piston ring 27 by a conical spring. A through hole is provided in the piston ring 27, which is normally blocked by the one-way valve disc 28 and the overpressure relief valve disc 261. This structure facilitates the opening of the through hole blocked by the one-way valve disc 28 and the overpressure relief valve disc 261 when the piston ring 27 is subjected to excessive pressure, and then cooperates with the gap between the connector 38 and the plug 39 to achieve the purpose of overpressure relief.

[0036] The above is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A wire-controlled structural damper, comprising a cylinder (1), characterized in that: A valve core control rod (3) is installed at one end of the inner side of the cylinder (1), and the damper can be locked or unlocked by connecting to the wire control structure of the bicycle through the control of the valve core (34); a piston rod (2) is provided at the other end of the cylinder (1), and the end of the piston rod (2) inserted into the cylinder (1) is connected to a damping adjustment sleeve (26), and a piston ring (27) is provided on the outside of the damping adjustment sleeve (26); an adjustment rod (25) is provided inside the piston rod (2), and a damping adjustment plug (251) is provided at one end of the adjustment rod (25) facing the damping adjustment sleeve (26), and the damping adjustment plug (251) is provided. ) is inserted into the inner side of the damping adjustment groove, and a variable damping groove (252) is formed between the damping adjustment plug (251) and the damping adjustment sleeve (26); a connecting pipe (21) is installed at the other end of the piston rod (2), a knob (22) is provided at the end of the connecting pipe (21), a rotating shaft (23) is provided in the middle of the knob (22), and the rotating shaft (23) is connected to an adjusting indexer (24), and the adjusting indexer (24) is connected to the adjusting rod (25), and the adjusting indexer (24) and the adjusting rod (25) are controlled by rotating the knob (22), thereby achieving the purpose of adjusting the damping size.

2. The wire-controlled structural damper according to claim 1, characterized in that: A gasket (11) is provided on the inner side of the cylinder (1) along one end where the piston rod (2) is provided, a first O-ring (12) is provided between the gasket (11) and the cylinder (1), a sealing guide sleeve (13) is provided on the inner side of the gasket (11), and a retaining ring (14) is provided on the inner side of the cylinder (1) along one end away from the gasket (11) and away from the gasket (13).

3. The wire-controlled structural damper according to claim 2, characterized in that: A tail sleeve (15) is provided along the inner side of the cylinder (1) at one end where the valve core control rod (3) is provided. A sleeve hole (16) is provided in the middle of the tail sleeve (15). A mounting groove (17) is provided at one end of the tail sleeve (15) facing the inner side of the cylinder (1). A limiting convex ring (18) is provided on the inner side of the mounting groove (17).

4. The wire-controlled structural damper according to claim 3, characterized in that: One end of the valve core control rod (3) inserted into the cylinder (1) is provided with a sleeve (31), and the outer side surface of one end of the sleeve (31) facing the tail sleeve (15) is provided with a plurality of third O-rings (32), and the sleeve (31) is provided with a limiting groove (33) along the front end of the plurality of third O-rings (32), and the limiting groove (33) is engaged with the limiting convex ring (18).

5. The wire-controlled structural damper according to claim 4, characterized in that: The end of the sleeve (31) facing the inner side of the cylinder (1) is clamped with a valve body (36), the inner side of the valve body (36) is provided with a limit ring (361), the limit ring (361) is clamped on the sleeve (31), and a fourth O-ring (35) is provided between the sleeve (31) and the valve body (36); the end of the valve core control rod (3) inserted into the valve body (36) is provided with a valve core (34), and a fifth O-ring (363) is provided between the valve core (34) and the valve body (36); the valve body (36) is provided with a flow hole (362) along the front end of the valve core (34), and the valve core (34) can block the flow hole (362) under the control of the valve core control rod (3).

6. The wire-controlled structural damper according to claim 5, characterized in that: A connector (38) is installed on the outer side of the front end of the valve body (36), and a sixth O-ring (382) is provided between the connector (38) and the cylinder (1); a disc spring (37) is provided between the rear end of the connector (38) and the valve body (36), a plug (39) is installed on the front end of the valve body (36), and a seventh O-ring (392) is provided between the plug (39) and the valve body (36), and a telescopic spring (391) is provided between the plug (39) and the connector (38).

7. The wire-controlled structural damper according to any one of claims 1 to 6, characterized in that: An overpressure relief valve plate (261) is installed at a position where the damping adjustment sleeve (26) is in contact with the rear end of the piston ring (27); a second O-ring (271) is provided between the piston ring (27) and the cylinder barrel (1); a one-way valve plate (28) is provided between the damping adjustment sleeve (26) and the front end of the piston ring (27); the one-way valve plate (28) and the damping adjustment sleeve (26) are pressed against the piston ring (27) via a conical spring.

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