Upper end adjusting damper convenient to adjust

Abstract

The upper end adjusting damper comprises a cylinder barrel, the two ends of the cylinder barrel are open, a tail plug is arranged at the rear end of the cylinder barrel, a piston is arranged in the cylinder barrel, a valve element is arranged on the inner side of the piston, a piston rod is connected to the front end of the piston, a valve rod is arranged in the piston rod, and the valve rod is connected with the valve element. A variable damping groove is formed between the valve element and the piston. The end, facing the outer side, of the piston rod is provided with an adapter cap, the end of the adapter cap is rotationally connected with an adjusting knob, and the adjusting knob is connected with the valve rod through a connecting screw. Only one end of the damper is provided with an adjusting knob, the adjusting knob is clockwise screwed to the bottom, the valve core is closed, and the damper becomes a lockable oil pressure rod; when the adjusting knob rotates anticlockwise and is locked and unlocked, oil on the two sides of the piston flows through the damping groove, so that the damping effect is achieved, the front fork is gentle in action during shock-proof pressing and rebounding, and the damping is maximum when the adjusting knob rotates to the bottom anticlockwise.

Description

Technical Field

[0001] The utility model relates to the technical field of dampers, in particular to an upper end adjustable damper which is convenient to adjust. Background Art

[0002] A damper is installed on a bicycle to achieve the purpose of shock absorption. Different dampers have different adjustment methods.

[0003] For example, the Chinese patent with patent number CN201520492413.6 discloses a damper, in which the opening at the right end of the working cylinder is closed by a damping cap, the opening at the left end of the working cylinder is closed by a gland, the piston rod in the piston rod assembly passes through the through hole on the gland, and the piston in the piston rod assembly slides with the inner wall of the working cylinder; the floating piston is arranged in the working cylinder, and its outer wall is sealed with the inner wall of the working cylinder by a dynamic seal, and the floating piston divides the inner cavity of the working cylinder into two independent chambers, namely the oil chamber on the left and the oil-gas mixing chamber on the right, wherein the oil chamber is filled with 100ml of special shock absorber oil, and the oil-gas mixing chamber is filled with 0.35-0.55MPa high-pressure gas and 39-41ml of special shock absorber oil. This damper adjusts the air cavity of the traditional structure to the current oil-gas mixing chamber, so that the damping performance of the damper can be effectively improved without increasing the air pressure of the air compressor, thereby well overcoming the defects of the traditional technology under the limitations of the existing equipment.

[0004] The damper provided by the above patent is not suitable for bicycles. The damper adjustment method on existing bicycles is mostly to adjust the two ends, one end is used to lock the damper, and the other end is used to adjust the damping size. It can be seen that the existing bicycle damper adjustment method is not convenient, which makes it difficult to adjust the bicycle damping. Utility Model Content

[0005] The utility model aims to provide an upper end adjustable damper which is convenient to adjust, aiming to improve the problem that the existing bicycle damper adjustment method is inconvenient and causes trouble in adjusting the bicycle damping.

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

[0007] A conveniently adjustable upper-end adjustable damper comprises a cylinder, the two ends of the cylinder are opened, a tail plug is provided at the rear end of the cylinder, a piston is provided inside the cylinder, a valve core is provided inside the piston, a piston rod is connected to the front end of the piston, a valve stem is provided inside the piston rod, and the valve stem is connected to the valve core; a variable damping groove is provided between the valve core and the piston; a transfer cap is provided at the end of the piston rod facing outward, an adjusting knob is rotatably connected to the end of the transfer cap, and the adjusting knob and the valve stem are connected by a connecting screw.

[0008] Preferably, a guide ring is provided at the front end of the inner side of the cylinder, and a sealing ring is provided on the inner side of the guide ring; a buffer groove is provided at the end of the tail plug facing the inner side of the cylinder, and a third O-ring is provided between the tail plug and the cylinder.

[0009] Preferably, a fourth O-ring is provided between the rear end of the piston and the cylinder, a flow joint is provided at the rear end of the piston, and a fifth O-ring is provided between the flow joint and the piston; a through hole is provided on the side of the piston near the rear end, and a guide hole is provided on the side of the piston along the front end of the through hole.

[0010] Preferably, the front end of the piston is opened, and a limiting convex ring is provided on the inner side of the piston near the front end; a connecting groove is provided at the front end of the valve core, and a sixth O-ring is provided between the valve core and the piston.

[0011] Preferably, a seventh O-ring is provided on the outer side surface of one end of the piston rod inserted into the piston, and a limiting groove is provided on the side surface of the piston rod aligned with the limiting convex ring.

[0012] Preferably, a fixing bolt is provided at one end of the piston rod facing outwards, the fixing bolt connects the adapter cap to the piston rod, the valve stem passes through the inside of the fixing bolt, and a plurality of balls are provided between the adjusting knob and the adapter cap.

[0013] Preferably, a floating piston is provided inside the cylinder, the floating piston is sleeved on a piston rod, a first O-ring is provided between the floating piston and the cylinder, and a second O-ring is provided between the floating piston and the piston rod.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The damper provided by the utility model is provided with an adjusting knob at only one end. When the adjusting knob is turned clockwise to the bottom, the valve core is closed and the damper becomes a lockable hydraulic rod; when the adjusting knob is turned counterclockwise to lock and open, the oil on both sides of the piston will flow through the damping groove, thereby playing a damping role, so that the front fork moves smoothly when the shock absorber is pressed down and rebounded, and the damping is maximum when the adjusting knob is turned counterclockwise to the bottom; the adjusting knob of this structure makes the adjustment of the damper more convenient and easy to use.

[0016] 2. The utility model provides a floating piston, so that the damper can be used stably and the piston rod can move back and forth more smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a cross-sectional view of the utility model as a whole;

[0018] Figure 2 It is the front view of the utility model as a whole;

[0019] Figure 3It is a cross-sectional view of the cylinder of the utility model;

[0020] Figure 4 It is a cross-sectional view of the piston of the utility model;

[0021] Figure 5 It is a cross-sectional view of the piston rod of the utility model.

[0022] In the figure: 1. Cylinder; 11. Guide ring; 12. Sealing ring; 13. Floating piston; 14. First O-ring; 15. Second O-ring; 16. Tail plug; 17. Buffer groove; 18. Third O-ring; 2. Piston; 21. Fourth O-ring; 22. Flow joint; 23. Fifth O-ring; 24. Through hole; 25. Variable damping groove; 26. Guide hole; 27. Limiting convex ring; 28. Valve core; 281. Connecting groove; 29. ​​Sixth O-ring; 3. Piston rod; 31. Valve stem; 32. Seventh O-ring; 33. Limiting groove; 34. Fixing bolt; 35. Adapter cap; 36. Adjusting knob; 37. Connecting screw; 38. Ball. DETAILED DESCRIPTION

[0023] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to 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 , Figure 3 , Figure 4 and Figure 5As shown, an easily adjustable upper end adjustable damper includes a cylinder 1, which is provided with openings at both ends, and a tail plug 16 is provided at the rear end of the cylinder 1. The tail plug 16 is convenient for sealing the rear end opening of the cylinder 1 to ensure the stability of the cylinder 1. A piston 2 is provided inside the cylinder 1, and a valve core 28 is provided inside the piston 2. A piston rod 3 is connected to the front end of the piston 2, and a valve stem 31 is provided inside the piston rod 3. The valve stem 31 is connected to the valve core 28; the piston 2 is convenient for cooperating with the piston rod 3 to achieve the purpose of damping and shock reduction; the valve stem 31 is convenient for controlling the valve core 28, and convenient for locking the valve core 28, so that the entire damper cannot perform damping and shock reduction. A variable damping groove 25 is provided between the valve core 28 and the piston 2; the variable damping groove 25 is convenient for adjusting the damping size of the damper. An adapter cap 35 is provided at the outward end of the piston rod 3, and an adjusting knob 36 is rotatably connected to the end of the adapter cap 35. The adjusting knob 36 and the valve stem 31 are connected by a connecting screw 37; the adapter cap 35 and the adjusting knob 36 are used to adjust the damping size of the damper, and it is also convenient to lock the damper.

[0027] like Figure 3 As shown, a guide ring 11 is provided at the front end of the inner side of the cylinder 1, and a sealing ring 12 is provided on the inner side of the guide ring 11; the guide ring 11 cooperates with the sealing ring 12 to guide the piston rod 3, so that the piston rod 3 can be stably extended and retracted. A buffer groove 17 is provided at one end of the tail plug 16 facing the inner side of the cylinder 1, and the buffer groove 17 facilitates the tail plug 16 to buffer the pressure. A third O-ring 18 is provided between the tail plug 16 and the cylinder 1, and the third O-ring 18 is convenient for sealing between the tail plug 16 and the cylinder 1.

[0028] like Figure 4 As shown, a fourth O-ring 21 is provided between the rear end of the piston 2 and the cylinder 1. This structure is convenient for sealing the gap between the piston 2 and the cylinder 1. A circulation joint 22 is provided at the rear end of the piston 2. The circulation joint 22 is convenient for the flow of oil inside the cylinder 1. A fifth O-ring 23 is provided between the circulation joint 22 and the piston 2; this structure allows the circulation joint 22 and the piston 2 to be sealed. A through hole 24 is provided near the rear end of the side of the piston 2, and a guide hole 26 is provided along the front end of the through hole 24 on the side of the piston 2; this structure facilitates the flow of oil in the cylinder 1. The front end of the piston 2 is opened, and a limiting convex ring 27 is provided at the inner side of the piston 2 near the front end; this structure facilitates the stable connection between the piston 2 and the piston rod 3. A connecting groove 281 is provided at the front end of the valve core 28. The connecting groove 281 is convenient for the valve core 28 to be connected to the valve stem 31. A sixth O-ring 29 is provided between the valve core 28 and the piston 2. The sixth O-ring 29 is convenient for sealing the valve core 28 and the piston 2.

[0029] like Figure 5As shown, a seventh O-ring 32 is provided on the outer side of one end of the piston rod 3 inserted into the piston 2, and the seventh O-ring 32 is used to facilitate the stable connection between the piston rod 3 and the piston 2. A limiting groove 33 is provided on the side of the piston rod 3 aligned with the position of the limiting convex ring 27, and the limiting groove 33 is used to facilitate the stable connection between the piston rod 3 and the piston 2. A fixing bolt 34 is provided at the end of the piston rod 3 facing the outside, and the fixing bolt 34 connects the adapter cap 35 to the piston rod 3, which is convenient for the installation and use of the adapter cap 35. The valve stem 31 passes through the inside of the fixing bolt 34. In this structure, the valve stem 31 is connected to the adjusting knob 36 by a connecting screw 37. A plurality of balls 38 are provided between the adjusting knob 36 and the adapter cap 35; the balls 38 are used to facilitate the rotation of the adjusting knob 36.

[0030] Working principle: when in use, the entire damper is installed at the designated position on the bicycle according to the use requirements; when the damper needs to be adjusted, the adjustment knob 36 is turned; the damper can be locked by turning the adjustment knob 36 clockwise, so that the damper cannot perform shock absorption; the damping size of the damper can be adjusted by turning it counterclockwise, which is convenient for the flexible use of the damper. Compared with the prior art, the damper of the present application is only provided with an adjustment knob 36 at one end. When the adjustment knob 36 is turned clockwise to the bottom, the valve core 28 is closed, and the damper becomes a lockable hydraulic rod; when the adjustment knob 36 is turned counterclockwise, the lock is opened, and the oil on both sides of the piston 2 will flow through the damping groove, thereby playing a damping role, so that the front fork moves smoothly when the shock is suppressed and rebounded, and the damping is maximum when the adjustment knob 36 is turned counterclockwise to the bottom; the adjustment knob 36 of this structure makes the adjustment of the damper more convenient and easy to use.

[0031] Example 2

[0032] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, an easily adjustable upper end adjustable damper includes a cylinder 1, which is provided with openings at both ends, and a tail plug 16 is provided at the rear end of the cylinder 1. The tail plug 16 is convenient for sealing the rear end opening of the cylinder 1 to ensure the stability of the cylinder 1. A piston 2 is provided inside the cylinder 1, and a valve core 28 is provided inside the piston 2. A piston rod 3 is connected to the front end of the piston 2, and a valve stem 31 is provided inside the piston rod 3. The valve stem 31 is connected to the valve core 28; the piston 2 is convenient for cooperating with the piston rod 3 to achieve the purpose of damping and shock reduction; the valve stem 31 is convenient for controlling the valve core 28, and convenient for locking the valve core 28, so that the entire damper cannot perform damping and shock reduction. A variable damping groove 25 is provided between the valve core 28 and the piston 2; the variable damping groove 25 is convenient for adjusting the damping size of the damper. An adapter cap 35 is provided at the outward end of the piston rod 3, and an adjusting knob 36 is rotatably connected to the end of the adapter cap 35. The adjusting knob 36 and the valve stem 31 are connected by a connecting screw 37; the adapter cap 35 and the adjusting knob 36 are used to adjust the damping size of the damper, and it is also convenient to lock the damper.

[0033] like Figure 3 As shown, a guide ring 11 is provided at the front end of the inner side of the cylinder 1, and a sealing ring 12 is provided on the inner side of the guide ring 11; the guide ring 11 cooperates with the sealing ring 12 to guide the piston rod 3, so that the piston rod 3 can be stably extended and retracted. A buffer groove 17 is provided at one end of the tail plug 16 facing the inner side of the cylinder 1, and the buffer groove 17 facilitates the tail plug 16 to buffer the pressure. A third O-ring 18 is provided between the tail plug 16 and the cylinder 1, and the third O-ring 18 is convenient for sealing between the tail plug 16 and the cylinder 1.

[0034] like Figure 4 As shown, a fourth O-ring 21 is provided between the rear end of the piston 2 and the cylinder 1. This structure is convenient for sealing the gap between the piston 2 and the cylinder 1. A circulation joint 22 is provided at the rear end of the piston 2. The circulation joint 22 is convenient for the flow of oil inside the cylinder 1. A fifth O-ring 23 is provided between the circulation joint 22 and the piston 2; this structure allows the circulation joint 22 and the piston 2 to be sealed. A through hole 24 is provided near the rear end of the side of the piston 2, and a guide hole 26 is provided along the front end of the through hole 24 on the side of the piston 2; this structure facilitates the flow of oil in the cylinder 1. The front end of the piston 2 is opened, and a limiting convex ring 27 is provided at the inner side of the piston 2 near the front end; this structure facilitates the stable connection between the piston 2 and the piston rod 3. A connecting groove 281 is provided at the front end of the valve core 28. The connecting groove 281 is convenient for the valve core 28 to be connected to the valve stem 31. A sixth O-ring 29 is provided between the valve core 28 and the piston 2. The sixth O-ring 29 is convenient for sealing the valve core 28 and the piston 2.

[0035] like Figure 5As shown, a seventh O-ring 32 is provided on the outer side of one end of the piston rod 3 inserted into the piston 2, and the seventh O-ring 32 is used to facilitate the stable connection between the piston rod 3 and the piston 2. A limiting groove 33 is provided on the side of the piston rod 3 aligned with the position of the limiting convex ring 27, and the limiting groove 33 is used to facilitate the stable connection between the piston rod 3 and the piston 2. A fixing bolt 34 is provided at the end of the piston rod 3 facing the outside, and the fixing bolt 34 connects the adapter cap 35 to the piston rod 3, which is convenient for the installation and use of the adapter cap 35. The valve stem 31 passes through the inside of the fixing bolt 34. In this structure, the valve stem 31 is connected to the adjusting knob 36 by a connecting screw 37. A plurality of balls 38 are provided between the adjusting knob 36 and the adapter cap 35; the balls 38 are used to facilitate the rotation of the adjusting knob 36.

[0036] like Figure 3 As shown, a floating piston 13 is provided inside the cylinder 1, and the floating piston 13 is sleeved on the piston rod 3. The floating piston 13 is used to make the entire damper more stable to use and improve the damping effect. At the same time, the piston rod 3 can be stably extended and retracted. A first O-ring 14 is provided between the floating piston 13 and the cylinder 1, and the first O-ring 14 is convenient for sealing between the floating piston 13 and the cylinder 1. A second O-ring 15 is provided between the floating piston 13 and the piston rod 3, and the second O-ring 15 is convenient for sealing between the floating piston 13 and the piston rod 3.

[0037] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be modified and varied in various ways. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An easily adjustable upper end damper, comprising a cylinder (1), characterized in that: The cylinder barrel (1) is open at both ends, and a tail plug (16) is provided at the rear end of the cylinder barrel (1); a piston (2) is provided inside the cylinder barrel (1), a valve core (28) is provided inside the piston (2), a piston rod (3) is connected to the front end of the piston (2), a valve stem (31) is provided inside the piston rod (3), and the valve stem (31) is connected to the valve core (28); a variable damping groove (25) is provided between the valve core (28) and the piston (2); a transfer cap (35) is provided at one end of the piston rod (3) facing outward, and an adjusting knob (36) is rotatably connected to the end of the transfer cap (35), and the adjusting knob (36) and the valve stem (31) are connected via a connecting screw (37).

2. The easily adjustable upper end damper according to claim 1, characterized in that: A guide ring (11) is provided at the front end of the inner side of the cylinder barrel (1), and a sealing ring (12) is provided on the inner side of the guide ring (11); a buffer groove (17) is provided at one end of the tail plug (16) facing the inner side of the cylinder barrel (1), and a third O-ring (18) is provided between the tail plug (16) and the cylinder barrel (1).

3. The easily adjustable upper end damper according to claim 1, characterized in that: A fourth O-ring (21) is provided between the rear end of the piston (2) and the cylinder (1), a flow joint (22) is provided at the rear end of the piston (2), and a fifth O-ring (23) is provided between the flow joint (22) and the piston (2); a through hole (24) is provided on the side of the piston (2) near the rear end, and a guide hole (26) is provided on the side of the piston (2) along the front end of the through hole (24).

4. The easily adjustable upper end damper according to claim 3, characterized in that: The front end of the piston (2) is open, and a limiting convex ring (27) is provided on the inner side of the piston (2) near the front end; a connecting groove (281) is provided at the front end of the valve core (28), and a sixth O-ring (29) is provided between the valve core (28) and the piston (2).

5. The easily adjustable upper end damper according to claim 4, characterized in that: A seventh O-ring (32) is provided on the outer side surface of one end of the piston rod (3) inserted into the piston (2), and a limiting groove (33) is provided on the side surface of the piston rod (3) aligned with the limiting convex ring (27).

6. The easily adjustable upper end damper according to claim 5, characterized in that: A fixing bolt (34) is provided at one end of the piston rod (3) facing outwards, and the fixing bolt (34) connects the adapter cap (35) to the piston rod (3). The valve stem (31) passes through the inside of the fixing bolt (34), and a plurality of balls (38) are provided between the adjusting knob (36) and the adapter cap (35).

7. An easily adjustable upper end damper according to any one of claims 1 to 6, characterized in that: A floating piston (13) is provided inside the cylinder (1), the floating piston (13) is sleeved on the piston rod (3), a first O-ring (14) is provided between the floating piston (13) and the cylinder (1), and a second O-ring (15) is provided between the floating piston (13) and the piston rod (3).

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