Double-knob damper

Abstract

The utility model belongs to the technical field of dampers, and particularly relates to a double-knob damper which comprises an adjusting assembly, a limiting assembly and a separating piece, the adjusting assembly comprises a cylinder barrel, the separating piece is arranged in the cylinder barrel and divides the cylinder barrel into an upper oil cavity and a lower oil cavity, a piston rod is connected in the cylinder barrel in a sliding mode, and the limiting assembly is arranged on the piston rod. A fixing seat component is arranged on the surface of the part, located in the cylinder barrel, of the piston rod, a floating piston component is arranged on the surface of the piston rod, the floating piston component separates the part, close to the fixing seat component, of the upper oil cavity into an air outlet cavity, a piston piece is arranged on the surface of the piston rod, and a damping groove is formed in the surface of the piston piece. A partition piece is fixedly connected to one side of the piston piece, a locking rotary knob and a damping adjusting rotary knob are arranged above the damper, and meanwhile the limiting assembly is matched, so that damping adjustment and locking and unlocking of the damper are more convenient.

Description

Technical Field

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

[0002] A damper is a device that provides resistance to motion and dissipates kinetic energy. It uses damping characteristics to slow down mechanical vibrations and consume kinetic energy. It is mostly used in automobile shock absorbers, machine tools, bicycle front forks, etc. to reduce vibration and dissipate energy.

[0003] Traditional dampers only have one of the locking and adjusting functions and cannot be adjusted at the same time, so they have a single function and a small scope of application. In addition, the rotation angle during adjustment is greater than 120°, the rotation path is long, and it is very inconvenient to use. Therefore, a double-knob damper is proposed to address the above problems. Utility Model Content

[0004] In order to make up for the shortcomings of the prior art, the traditional damper has only one of the locking and adjusting functions and cannot be adjusted at the same time, so it leads to a single function and a small scope of application. In addition, the rotation angle during adjustment is greater than 120°, the rotation path is long, and it is very inconvenient to use. The utility model proposes a double-knob damper.

[0005] The technical solution adopted by the utility model to solve the technical problem is: the double-knob damper described in the utility model comprises an adjustment component, a limit component and a separator;

[0006] The regulating assembly comprises a cylinder, the partition is arranged in the cylinder, the partition divides the cylinder into an upper oil chamber and a lower oil chamber, a piston rod is slidably connected in the cylinder, a fixed seat component is arranged on the surface of the piston rod located in the cylinder, a floating piston component is arranged on the surface of the piston rod, the floating piston component isolates the part of the upper oil chamber close to the fixed seat component from the air chamber, a piston component is arranged on the surface of the piston rod, a damping groove is opened on the surface of the piston component, and a partition is fixedly connected to one side of the piston component;

[0007] An upper end connection nut is installed, and the upper end connection nut is arranged on the end surface of the piston rod outside the cylinder, and a lower end connection thread head is arranged at a position of the cylinder away from the upper end connection nut;

[0008] A damping adjustment knob, the damping adjustment knob is arranged on one side of the upper end mounting connection nut and is rotatably connected, a damping adjustment rod is clamped on the surface of the damping adjustment knob, the damping adjustment rod is rotatably connected in the piston rod, a damping adjustment valve core is arranged on the surface of the damping adjustment rod, and the damping adjustment valve core is arranged in the piston member;

[0009] A locking knob, which is arranged on one side of the damping adjustment knob and is rotatably connected, a locking adjustment rod is clamped on the surface of the locking knob, and the locking adjustment rod passes through the damping adjustment rod, the damping adjustment valve core, and the partition and is movably connected;

[0010] A locking nut is arranged on the other side of the partition, a locking sealing cover is arranged on one side of the locking nut, and a limiting assembly is arranged between the locking nut and the locking sealing cover.

[0011] Preferably, the limiting assembly comprises a limiting pin, the limiting pin is fixedly inserted on the surface of the locking nut, and a limiting groove is provided on a side of the locking sealing cover close to the locking nut.

[0012] Preferably, the notch on the surface of the damping adjustment knob that cooperates with the damping adjustment rod is an inner hexagon, and the end of the damping adjustment rod is an outer hexagon.

[0013] Preferably, the surface of the upper end mounting connection nut is slidably connected with a damping fine-tuning graduation steel ball via a spring, and the surface of the damping adjustment knob is provided with a notch relative to the position of the damping fine-tuning graduation steel ball.

[0014] Preferably, an O-ring is sleeved on the surface of the separator, and the O-ring fits against the inner wall of the cylinder.

[0015] Preferably, a piston ring is movably sleeved on the surface of the separator, and the width of the piston ring is smaller than the installation notch on the surface of the separator.

[0016] The utility model is beneficial in that:

[0017] 1. The utility model provides a locking knob and a damping adjustment knob above the damper, and cooperates with a limit assembly to make damping adjustment and locking and unlocking of the damper more convenient.

[0018] 2. The utility model can play a role of feedback and positioning when the damping adjustment knob is rotated through the damping fine-tuning indexing steel ball. Through multiple damping fine-tuning indexing steel balls, the rotation angle of the damping adjustment knob can be accurately positioned. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 is a three-dimensional schematic diagram of a damper of Embodiment 1;

[0021] Figure 2 is a cross-sectional schematic diagram of a damper of Embodiment 1;

[0022] Figure 3 It is a cross-sectional schematic diagram of the cylinder barrel of the first embodiment;

[0023] Figure 4 It is a schematic diagram of the locking nut of the first embodiment;

[0024] Figure 5 This is a schematic diagram of the locking sealing cover of the first embodiment.

[0025] In the figure: 1. Locking knob; 101. Upper end mounting connecting nut; 2. Damping adjustment knob; 3. Piston rod; 4. Cylinder; 5. Damping fine-tuning indexing steel ball; 6. Fixed seat component; 7. Floating piston component; 8. Upper oil chamber; 9. Locking adjustment rod; 10. Piston member; 11. Damping groove; 12. Piston ring; 13. O-ring; 14. Locking sealing cover; 15. Lower oil chamber; 16. Locking nut; 17. Damping adjustment valve core; 18. Damping adjustment rod; 19. Air chamber; 20. Lower end connecting threaded head; 21. Separator; 22. Limit groove; 23. Limit pin. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Embodiment 1

[0028] See also Figure 1-5 As shown, a double-knob damper includes an adjustment component, a limit component and a separator 21;

[0029] The regulating assembly comprises a cylinder 4, wherein the partition 21 is arranged in the cylinder 4, wherein the partition 21 divides the cylinder 4 into an upper oil chamber 8 and a lower oil chamber 15, wherein a piston rod 3 is slidably connected in the cylinder 4, wherein a fixed seat component 6 is arranged on the surface of the piston rod 3 located in the cylinder 4, wherein a floating piston component 7 is arranged on the surface of the piston rod 3, wherein the floating piston component 7 isolates the portion of the upper oil chamber 8 close to the fixed seat component from the air chamber 19, wherein a piston component 10 is arranged on the surface of the piston rod 3, wherein a damping groove 11 is arranged on the surface of the piston component 10, wherein a partition 21 is fixedly connected to one side of the piston component 10;

[0030] An upper end mounting connection nut 101 is provided on the end surface of the piston rod 3 outside the cylinder 4, and a lower end connection thread head 20 is provided at a position of the cylinder 4 away from the upper end mounting connection nut 101;

[0031] A damping adjustment knob 2, the damping adjustment knob 2 is arranged on one side of the upper end mounting connection nut 101 and is rotatably connected, a damping adjustment rod 18 is clamped on the surface of the damping adjustment knob 2, the damping adjustment rod 18 is rotatably connected in the piston rod 3, a damping adjustment valve core 17 is arranged on the surface of the damping adjustment rod 18, and the damping adjustment valve core 17 is arranged in the piston member 10;

[0032] A locking knob 1, which is arranged on one side of the damping adjustment knob 2 and is rotatably connected, and a locking adjustment rod 9 is clamped on the surface of the locking knob 1, and the locking adjustment rod 9 passes through the damping adjustment rod 18, the damping adjustment valve core 17, and the partition 21 and is movably connected;

[0033] A locking nut 16 is provided on the other side of the partition 21, and a locking sealing cover 14 is provided on one side of the locking nut 16. A limiting assembly is provided between the locking nut 16 and the locking sealing cover 14, and the limiting assembly includes a limiting pin 23, and the limiting pin 23 is fixedly inserted on the surface of the locking nut 16. A limiting groove 22 is provided on the side of the locking sealing cover 14 close to the locking nut 16.

[0034] The notch on the surface of the damping adjustment knob 2 that matches the damping adjustment rod 18 is an inner hexagon, and the end of the damping adjustment rod 18 is an outer hexagon. The clamping method of the locking knob 1 and the locking adjustment rod 9 is the same as the clamping method between the damping adjustment knob 2 and the damping adjustment rod 18;

[0035] When working, when using the damper, manually rotate the locking knob 1, then the locking knob 1 drives the locking adjustment rod to rotate, and by rotating the locking adjustment rod 9, the two holes connected between the locking sealing cover 14 and the locking nut 16 can be connected or disconnected, thereby realizing the locking and unlocking functions. The locking knob 1 can be rotated by 90° due to the restrictions of the limit pin 23 and the limit groove 22, which shortens the rotation path and greatly improves the convenience during adjustment. In the unlocked state, by twisting the damping adjustment knob 2, the damping adjustment knob 2 drives the damping adjustment rod 18, so that the damping adjustment rod 18 controls the damping adjustment The throttling valve core 17 moves up and down, and the size of the opening area of ​​the damping groove 11 is controlled by the damping adjusting valve core 17, and then the damping groove 11 controls the oil in the cylinder 4, and the flow speed between the upper oil chamber 8 and the lower oil chamber 15 is used to adjust the damping size. When the locking function is used, the damping adjusting valve core 17 retreats to the upper position, and the damping groove 11 is in a unobstructed state. When the damping adjustment function is used, the locking function is in an open state. By arranging a locking knob 1 and a damping adjustment knob 2 above the damper and cooperating with a limit assembly, the damping adjustment and the locking and unlocking of the damper can be made more convenient.

[0036] The surface of the connecting nut 101 installed at the upper end is slidably connected with a damping fine-tuning dividing steel ball 5 through a spring, and a slot is provided on the surface of the damping adjusting knob 2 relative to the position of the damping fine-tuning dividing steel ball 5; during operation, the damping fine-tuning dividing steel ball 5 can play a role of feedback and positioning when the damping adjusting knob 2 is rotated, and multiple damping fine-tuning dividing steel balls 5 can make the rotation angle of the damping adjusting knob 2 accurately positioned.

[0037] An O-ring 13 is sleeved on the surface of the separator 21, and the O-ring 13 fits against the inner wall of the cylinder 4. A piston ring 12 is movably sleeved on the surface of the separator 21. The width of the piston ring 12 is smaller than the installation groove on the surface of the separator 21, and the installation method of the O-ring is the same as that of the piston ring 12. During operation, when the damper is in a locked state, the O-ring 13 leans against the upper surface, and the piston rod 3 cannot be pressed down but can be pulled up. When the damper is in a damping state, the piston rod 3 is pulled outward, and the piston ring 12 leans against the lower position of the separator 21. At this time, the oil passes through the damping groove 11 to produce a damping effect. There is no damping when pressing down. The piston ring 12 and the O-ring 13 on the piston will move up and down with the pulling and pressing of the piston rod 3, thereby realizing a unidirectional flow of oil here.

[0038] Working principle: when using the damper, manually rotate the locking knob 1, and the locking knob 1 drives the locking adjustment rod to rotate. By rotating the locking adjustment rod 9, the two holes connected between the locking sealing cover 14 and the locking nut 16 can be connected or disconnected to achieve the locking and unlocking functions. The locking knob 1 can be rotated by 90° due to the restrictions of the limit pin 23 and the limit groove 22, which shortens the rotation path and greatly improves the convenience of adjustment. In the unlocked state, by twisting the damping adjustment knob 2, the damping adjustment knob 2 drives the damping adjustment rod 18, so that the damping adjustment rod 18 controls the damping. The regulating valve core 17 moves up and down, and the size of the opening area of ​​the damping groove 11 is controlled by the damping regulating valve core 17, and then the oil in the cylinder 4 is controlled by the damping groove 11, and the flow speed between the upper oil chamber 8 and the lower oil chamber 15 is adjusted to achieve the adjustment of the damping size. When the locking function is used, the damping regulating valve core 17 retreats to the upper position, and the damping groove 11 is in a smooth state. When the damping adjustment function is used, the locking function is in an open state. By arranging a locking knob 1 and a damping adjustment knob 2 above the damper, and cooperating with a limit assembly, the damping adjustment and the locking and unlocking of the damper can be made more convenient;

[0039] The damping fine-tuning graduated steel ball 5 can play a role of feedback and positioning when the damping adjustment knob 2 is rotated. The plurality of damping fine-tuning graduated steel balls 5 can accurately position the rotation angle of the damping adjustment knob 2. When the damper is in a locked state, the O-ring 13 leans against the upper surface, the piston rod 3 cannot be pressed down, but can be pulled up. When the damper is in a damping state, the piston rod 3 is pulled outward, and the piston ring 12 leans against the lower position of the partition 21. At this time, the oil passes through the damping groove 11 to produce a damping effect. There is no damping when pressing down. The piston ring 12 and the O-ring 13 on the piston will move up and down with the pulling and pressing of the piston rod 3, thereby realizing a unidirectional flow of oil here.

[0040] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0041] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A double-knob damper, characterized in that: It comprises an adjusting component, a limiting component and a separator (21); The regulating assembly comprises a cylinder (4), wherein the partition (21) is arranged in the cylinder (4), and the partition (21) divides the cylinder (4) into an upper oil chamber (8) and a lower oil chamber (15). A piston rod (3) is slidably connected in the cylinder (4), and a fixed seat component (6) is arranged on the surface of the piston rod (3) located in the cylinder (4). A floating piston component (7) is arranged on the surface of the piston rod (3), and the floating piston component (7) isolates the part of the upper oil chamber (8) close to the fixed seat component (6) from the air chamber (19). A piston component (10) is arranged on the surface of the piston rod (3), and a damping groove (11) is opened on the surface of the piston component (10). One side of the piston component (10) is fixedly connected with the partition (21); An upper end mounting connection nut (101) is arranged on an end surface of the piston rod (3) outside the cylinder barrel (4), and a lower end connection thread head (20) is arranged at a position of the cylinder barrel (4) away from the upper end mounting connection nut (101); A damping adjustment knob (2), the damping adjustment knob (2) being arranged on one side of the upper end mounting connection nut (101) and being rotatably connected, a damping adjustment rod (18) being clamped on the surface of the damping adjustment knob (2), the damping adjustment rod (18) being rotatably connected in the piston rod (3), a damping adjustment valve core (17) being arranged on the surface of the damping adjustment rod (18), and the damping adjustment valve core (17) being arranged in the piston member (10); A locking knob (1), the locking knob (1) being arranged on one side of the damping adjustment knob (2) and being rotatably connected, a locking adjustment rod (9) being clamped on the surface of the locking knob (1), the locking adjustment rod (9) penetrating the damping adjustment rod (18), the damping adjustment valve core (17), and the partition (21) and being movably connected; A locking nut (16) is provided on the other side of the partition (21), a locking sealing cover (14) is provided on one side of the locking nut (16), and a limiting assembly is provided between the locking nut (16) and the locking sealing cover (14).

2. A double-knob damper according to claim 1, characterized in that: The limiting assembly comprises a limiting pin (23), the limiting pin (23) is fixedly inserted on the surface of the locking nut (16), and a limiting groove (22) is provided on a side of the locking sealing cover (14) close to the locking nut (16).

3. A double-knob damper according to claim 2, characterized in that: The notch on the surface of the damping adjustment knob (2) that matches the damping adjustment rod (18) is an inner hexagon, and the end of the damping adjustment rod (18) is an outer hexagon.

4. A double-knob damper according to claim 3, characterized in that: The surface of the upper end mounting connection nut (101) is slidably connected to a damping fine-tuning graduation steel ball (5) via a spring, and a notch is provided on the surface of the damping adjustment knob (2) relative to the position of the damping fine-tuning graduation steel ball (5).

5. A double-knob damper according to claim 4, characterized in that: An O-ring (13) is sleeved on the surface of the separator (21), and the O-ring (13) is in contact with the inner wall of the cylinder (4).

6. A double-knob damper according to claim 5, characterized in that: A piston ring (12) is movably sleeved on the surface of the separator (21), and the width of the piston ring (12) is smaller than the installation notch on the surface of the separator (21).

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