WO2011103750A1

WO2011103750A1 - Damper

Info

Publication number: WO2011103750A1
Application number: PCT/CN2010/077170
Authority: WO
Inventors: 李忠家
Original assignee: 中山市法斯特贸精密五金有限公司
Priority date: 2010-02-26
Filing date: 2010-09-20
Publication date: 2011-09-01
Also published as: CN102168731B; CN102168731A

Abstract

A damper comprises two tubes (1, 2) which are nested with each other and a return device (51). The two tubes (1, 2) can slide relatively, and a flow passage filled with liquid is provided in the two tubes (1, 2). Highly elastic valve sheets (17, 45) are provided in the flow passage. When the two tubes (1, 2) slide relatively, the liquid is compressed to flow in the flow passage. The return device (51) provides an elastic force enabling the two tubes (1, 2) to return to a release position at any moment. In the case of different shocks, corresponding different damping values can be generated automatically by automatic opening and closing, and different bending degrees of the highly elastic valve sheets (17, 45).

Description

Shock absorber technology field

The invention relates to a shock absorber, in particular to a shock absorber with moderate shock and softness and elasticity and comfort.

Background technique

In order to obtain a more comfortable riding effect in response to various road requirements, the locomotive will install a shock absorber on the front fork to counteract the road surface reaction force of the vehicle body.

As is known in the art, the existing shock absorber structure, such as the Taiwan Patent No. 367991, is mainly disclosed by a pin having a change in the size of the section, which is inserted into an inner hole, and the pin is adjusted to be adjusted. The hole width is used to obtain different effects, which can be adjusted by the user.

Although the above-mentioned conventional shock absorber has the damping adjustment effect, the user can set a hard damping value according to the handling requirement, or set a soft damping value according to the riding comfort; however, the above shock absorber The liquid of the device moves in the two-slot chamber, and the axis of the shock absorber passes through the first-class channel, and the flow channel is used for the liquid to be directly displaced in the two-slot chamber. This conventional design of the shock absorber by the axial flow passage, although With the adjustment function of hard and soft tone, but it can not reach the soft and hard middle and softness of the soft and hard tone intermediate value, so that after the locomotive damping adjustment, it is not too hard or too soft tonality, so it is consumed From the standpoint of the position, there is still room for improvement in the adjustment and tonality of existing shock absorbers.

Summary of the invention

The main object of the present invention is to provide a shock absorber having both soft and hard performance properties.

In order to achieve the above object, the present invention provides a shock absorber comprising a first tube body and a second tube body, the first tube body having a closed end and an opening for the second tube body to be compressible The first and second tubes respectively form a first accommodating space and a second accommodating space; wherein the first tube body is provided with an inner tube having a damper hole, and the inner tube is provided with an elastic near one end of the opening The first valve piece, the inner tube and the first accommodating space are blocked from the inner and outer grooves for the liquid to flow and communicate with each other; the second accommodating space of the second tube body is provided with a resetting device. And the second pipe body, the inner pipe and the first valve piece are separated from the outer groove to form a liquid storage space connecting the damping holes; and a first valve piece, the elastic first valve piece, the setting The inner valve is close to the open end, so that the first valve piece normally closes the liquid storage space. When the liquid pressure in the liquid storage space is greater than the preset value of the first valve piece, the first valve piece is broken, so that the first valve piece is One valve piece elastically warps, making the liquid from the liquid storage space to warp Flow out in the direction of a valve. a piston guide member and a protrusion are disposed at one end of the inner tube, and the piston guide member is provided with a constant hole, and the through hole communicates with the inner groove, and the piston guide member is provided with at least one axial extension a flow guiding hole communicating with the liquid storage space, wherein the first valve piece is interposed between the piston flow guiding member and the protruding block, so that the first valve piece is covered in each of the drainage holes .

The first valve sheet is formed by laminating a plurality of sheets of highly elastic metal foil.

At least a slot is formed in the closed end of the first opening of the first pipe, and the slot communicates with the first receiving space.

The closed end of the first pipe body is formed by fixing a fixing head, and the side of the fixing head defines a slot communicating with the first receiving space.

The shock absorber further includes a rebound controller, the rebound controller includes a rebound adjusting device disposed in the slot, and a sliding sleeve disposed in the inner slot and abutting against the inner tube, the sliding The sleeve can be controlled by the rebound adjusting device to adjust the opening, closing or closing state of the opening of the orifice.

a second slot is defined in an adjacent side of the slot of the fixing head, a second valve plate is disposed in the second slot, the second valve piece has elasticity, and the second valve piece is blocked in the outer slot and the inner slot between.

The shock absorber further includes a valve tube, the valve tube is received in the slot, the valve tube is provided with a shaft hole and at least one axially extending diverting hole, and the second valve plate is covered in each of the diverting holes .

Therefore, when the invention encounters less vibration during use, the pressure caused by the two tubes pressing the liquid is small, and the liquid does not push or pushes the wide sheet only slightly, so that the resistance to the liquid flow is large. Providing a higher damping value, when a large shock is encountered, the pressure caused by the pressing of the liquid in the two tubes is large, and the liquid can push open the soft and elastic valve piece for the liquid to circulate, so that the liquid is subjected to the flow. The resistance is small, and the moderate and flexible damping value is provided, so that the shock absorber of the present invention can obtain the best shock-absorbing effect of moderate hardness and elasticity when riding on any road surface.

The invention has the beneficial effects that when the shock absorber obtained by the invention has excellent shock absorption effect, the damping effect obtained by the shock absorber is a soft and hard performance adjustment characteristic, so that the rider is shocked. The liquid flow channel design is innovative and provides better ride comfort.

DRAWINGS

Figure 1 is a perspective view of the present invention.

Figure 2 is a cross-sectional view of the present invention.

Figure 3 is a partial exploded view of the present invention.

Fig. 3A is another perspective sectional view of the sliding sleeve of the present invention.

4 to 6 are schematic views showing the operation of the compression controller in the present invention. 7 and 9 are schematic views showing the operation of the rebound controller of the present invention.

Figure 8 is a schematic view showing the operation of the first valve piece in the present invention.

[Main component symbol description] 1 _: First pipe body; 11: Pipe body; 12: Fixed head; 121: First slot; 122: Second slot; 123: Inner hole; 124: Fixing sleeve; 125: a holder; _126: a first step surface; 127: second shoe; 128: second stepped surface; 13: inner tube; 131: orifice; _14: groove; _15: outer tank; _16: piston guide 161: through hole; 162: diversion hole; 17: first valve piece; 18 _: bump; 2: second tube; 21: liquid storage space; 3: rebound controller; 30: shaft joint ; 31: sleeve; 311: orifice; 32: springback axis; 33: adjusting rod; 34: a first rotatable member; _4: compression controller; 41: short pipe; 42: abutment; _421: Cone; 43 _: valve tube; 431: shaft hole; 432: split hole; 433: drain hole; 44: second rotating member; 45: second valve piece; 51: elastic member.

detailed description

In the following, the spirit of the present invention is described by way of example only, and is not intended to limit the scope of the present invention. The spirit of the invention should be construed as being within the scope of the present invention. Narration.

Referring to Figure 1, the shock absorber provided by the present invention can be assembled for use in a motor vehicle, and more specifically, can be assembled on the front fork of the locomotive to provide shock or shock absorption effects.

Referring to Fig. 2, the shock absorber of the present invention comprises a first pipe body 1, a second pipe body 2, a rebound controller 3, a compression controller 4 and a reset device.

The first pipe body 1 includes a pipe body 11 and a fixing head 12, and one end of the pipe body 11 is fixed to the fixing head 12, so that the first pipe body 1 is closed at one end, and the other end forms a mouthpiece, and a first structure is formed. The accommodating space, the first accommodating space is connected to the opening. Referring to FIG. 2 and FIG. 3, the fixing head 12 defines a first slot 121 and a second slot 122. The slots are respectively connected to the first receiving space. An inner tube 13 is further disposed on the first tube body 1. The inner tube 13 is fixed to the fixed head 12, and the inner tube 13 is received in the first accommodating space, so that the inner tube 13 has the first accommodating space. It is divided into an inner groove 14 and an outer groove 15, wherein the outer groove surrounds the outer tube 13 and the first slot 121 communicates with the outer groove 15 and the inner groove 14, respectively. The inner tube 13 is provided with a damping hole 131 on the side close to the opening, and the damping hole 131 communicates with the outer groove 15 and the inner groove 14. A piston deflector 16 , a first valve plate 17 and a bump 18 are fixed at an end of the inner tube 13 away from the fixed head 12 . The piston guide 16 extends through the continuous hole 161 of the inner groove 14 . The expanding portion of the flow member 16 is provided with one or more axially extending flow guiding holes 162. The first valve plate 17 has elasticity, and the first valve plate 17 can be sandwiched between the piston guiding member 16 and the projection 18, under normal conditions. And sealing the piston guiding hole 162, the first valve piece is preferably a plurality of super-elastic metal sheets laminated. The second pipe body 2 has an open first end and a closed second end, and a second receiving space is formed between the two ends, and the first end of the second pipe body 2 is in a compressible manner, and the first pipe is The body opening direction penetrates into the outer groove 15, the first pipe body 1 is sleeved on the second pipe body 2, and the second pipe body 2 is sleeved on the inner pipe 13, and the first end of the second pipe body 2 abuts against the pipe The inner wall of the body 1 and the outer wall of the inner tube 13 separate the outer tube 15 from the second tube body 2, and a first liquid storage space 21 is surrounded by the first valve piece 17, the second tube body 2 and the inner tube 13. The second pipe body 2 can be moved relative to the first pipe body 1, so that the second pipe body 2 can be moved away from the first pipe body 1 to a relaxed position, or the second pipe body 2 can be slipped into the first pipe. Body 1 to a compressed position.

The rebound controller 3 includes a sliding sleeve 31 and a rebound adjusting device. The sliding sleeve 31 is accommodated in the inner groove and abuts against the inner tube 13, so that the sliding sleeve 31 can move between an open position and a closed position. When the sliding sleeve 31 is moved to the closed position, the damping hole 131 is closed. Referring to FIG. 3A, the sliding sleeve 31 is provided with a flow hole 311 for the liquid to flow axially on both sides of the sliding sleeve 31, and the rebound adjusting device is used for Controlling the movement of the sliding sleeve 31, so that the sliding sleeve 31 selectively adjusts the opening of the damping hole to be large, small or completely closed; more specifically, the rebound adjusting device comprises a shaft joint 30 and a rebound control shaft 32, an adjusting rod 33 and a first rotating member 34, the rebound control axis 32 is accommodated in the inner groove 1_4_, the rebound control shaft 32-end is fixed by the screw sleeve 31, and the other end is slidably fixed The first 12, furthermore, the fixing head 12 is provided with an inner hole 123 for inserting the rebound control axis 32, and the inner hole 123 is perpendicularly communicated with the second slot 122, so that the adjusting rod 33 is from the second slot 122. Passing in against the rebound control axis 32, adjusting the lever 33 and the first turn The fixing member 12 is disposed on the second slot 122, and the adjusting rod 33 is screwed on the fixing head 12. In the embodiment, the fixing head 12 is fixed with a fixing sleeve 124 in the second slot 122 for the adjusting rod 33 to be screwed. It is also possible to provide threading directly on the fixed head in other embodiments. The first rotating member 34 is in contact with the adjusting rod 33, so that the first rotating member and the adjusting rod are in a rotationally interlocking relationship. The fixing head 12 further fixes a first bearing seat 125 outside the first rotating member 34 for engaging the first rotating member 34 to prevent the first rotating member 34 from falling outward. More specifically, the first bearing seat The first rotating seat is fixed to the inner surface of the first bearing seat 125, and the first bearing seat is fixed on the fixing head, so that the first rotating member 34 is engaged with the first step surface 126. Between the fixed head 12.

The compression controller 4 includes a valve unit and a compression adjusting device. The valve unit includes a short tube 41 and an abutting member 42. The short tube 41 is received in the first slot 121, and one end of the short tube 41 is connected to the inner slot 14. The other end communicates with the outer groove 15, and the outer groove 15, the first slot 121, the short tube 41, the inner groove 14, and the orifice 131 communicate with the liquid storage space 21 to form a first-class track, and the abutting member 42 is accommodated in the first a slot 121 is movable between a first position and a second position, and abuts against the closed short tube 41 when the abutting member 42 is moved to the second position. Further, the abutting member 42 is convexly provided with a cone Body 421, abutting when the abutting member 42 moves to the second position The short tube 41 is inserted into the short tube 41 by the cone 421, so that the short tube 41 is closed. The compression adjusting device is used to adjust the moving abutment 42. More specifically, the compression adjusting device includes a valve tube 43 and a second rotating member 44. The valve tube 43 is provided with a shaft hole 431, and the valve tube 43 can be There are one or more axially extending diverting holes 432 around the shaft hole, and a radially extending drainage hole 433. The drainage hole 433 is in communication with the shaft hole 431. The valve tube 43 is laterally and can be provided with a second valve plate 45. The second valve piece 45 has elasticity and is closed in each of the diverting holes 432, so that the second valve piece 45 is partitioned between the outer groove 15 and the inner groove 14, wherein the second valve piece can also be similar to the first valve piece, A plurality of highly elastic metal foils are laminated to form. The valve tube 43 is sleeved on the short tube 41, and the other end is screwed with the abutting member 42 so that the abutting member 42 can be screwed and moved along the shaft hole 431 when the abutting member 42 rotates, and the second rotating member 44 is abutted against the abutting member 42 The member 42 rotates the second rotating member 44 in a rotationally coupled relationship with the abutting member 42. The fixing head 12 can be fixed with a second bearing 127 outside the second rotating member 44 for engaging the second rotating member 44 to prevent the second rotating member 44 from falling outward. More specifically, the second bearing The seat 127 is substantially annular, and a second step surface 128 is formed on the inner circumferential surface of the second socket 127. The second socket 127 is fixed to the fixing head 12, so that the second rotating member 44 is locked against the second step surface. 128 is between the fixed head 12.

Referring to Figure 2, the resetting device provides an elastic force to reset the second tubular body 2 to the relaxed position at any time. More specifically, the resetting device may include one or more elastic members 51 respectively abutting between the first tube body and the second tube body, or against the first tube body and the second tube body. Between the components, each of the elastic members can provide an elastic force to push against the first pipe body and the second pipe body, and is reset to a relaxed position at any time.

Thereby, the present invention can be used for filling a liquid in a flow path. Referring to FIG. 4, when the first pipe body 1 and the second pipe body 2 are pressed, the second pipe body slides into the first pipe body, so that the outer groove 15 is reduced in volume, and the liquid storage space 21 is increased in volume. The liquid inside flows into the inner tank 14 through the drain hole 433 and the short tube 41, and the liquid pushing the inner tank flows into the liquid storage space 21 through the orifice 131, or referring to FIG. 5, when the force of the second tube is pressed When the time is large, the pressure of the liquid in the flow channel is large, which can push the second valve piece 45 to elastically warp, and the diverting hole 432 is opened, so that the liquid can flow into the inner groove 14 through the diversion hole, thereby reducing the resistance of the liquid flow and changing. For the damping value, referring to FIG. 6, the compression controller is adjustable, and the second rotating member 44 is used to move the abutting member 42 to bring the abutting member closer to or away from the short tube, and also to change the resistance of the liquid to the short tube. . In addition, referring to FIG. 7, when the second tubular body 2 is forced to move to the relaxed position, the volume of the liquid storage space 21 and the outer tank 15 is restored to the original volume, so that the liquid in the liquid storage space 21 is squeezed. The pressure can be returned to the inner tank 14 through the orifice 131, and then the liquid is pushed to the outer tank. Referring to FIG. 8, when the liquid pressure is large (greater than the first valve preset value), the first valve can also be pushed. The sheet 17 allows liquid to flow to the inner groove 14 via the piston guide 162, the second tube 2 and the through hole 161, thereby reducing the resistance to the flow of the liquid and changing the damping value. Please refer to Figure 9, the rebound controller can be adjusted, rotated The first rotating member 34 moves the adjusting rod 33 to lock against the rebound control shaft 32, further causing the rebound control shaft to move the sliding sleeve 31, and the control orifice 131 is opened, blocked or closed. , the resistance to the liquid entering and leaving the liquid storage space 21 is changed, and the damping value can be changed.

Through the above-mentioned action mode in use, it can be found that the advantageous effects of the device of the present invention include: First, when the invention encounters less vibration during use, the pressure caused by the second pipe body pressing the liquid is small, and the liquid is not pushed. Or only slightly push the valve piece, mainly through the short pipe and the orifice to circulate in the flow channel, so that the resistance to the liquid flow is greater, providing a higher damping value; when encountering a large vibration, the two pipe body The pressure caused by the squeeze of the liquid is large, and the liquid can push the first valve and the second valve to open, creating an additional passage for the liquid to circulate, so that the flow resistance is less, and the lower damping value is provided. The invention can provide different damping values when encountering different vibrations of different sizes, and has excellent shock absorption effect.

Secondly, the design of the liquid flow path of the shock absorber of the present invention changes the direct circulation design of the conventional axial opening and damper hole, and the valve piece of the special metal foil embodiment is used as the liquid passage gate. The flaky valve piece has soft elastic bending characteristics, which allows the liquid that breaks through the valve plate to obtain a buffering and steady flow effect. The damping effect obtained by the shock absorber is a soft and hard performance Q-adjusting characteristic, which makes riding. Because of the innovative design of the liquid flow path of the shock absorber, it is a good and practical creation, which is worthy of the industry.

Claims

What is claimed is: 1. A shock absorber, comprising: a first tube body and a second tube body, the first tube body having a closed end and an opening, the opening for compressing the second tube body in a compressible manner The first tube and the second tube body respectively form a first accommodating space and a second accommodating space; wherein the first tube body is provided with an inner tube having a damper hole, and the inner tube is provided with an elastic first end near the opening end a valve piece, the inner tube and the first accommodating space are blocked from the inner and outer grooves for the liquid to flow and communicate with each other; the second accommodating space of the second tube body is provided with a resetting device, and The second pipe body, the inner pipe and the first valve piece are separated from the outer groove to form a liquid storage space connecting the damping holes; and a first valve piece, the elastic first valve piece is disposed therein The tube is close to the end of the mouth, so that the first valve piece normally closes the liquid storage space. When the liquid pressure in the liquid storage space is greater than the preset value of the first valve piece, the first valve piece is broken, so that the first valve The valve plate is elastically warped, and the first valve that causes the liquid to warp from the liquid storage space The direction of flow.

2. The shock absorber according to claim 1, wherein: a piston guide member and a protrusion are disposed at one end of the inner tube, and the piston guide member is provided with a constant hole, and the through hole is The inner guiding groove is connected to the piston guiding member, and the piston guiding member is provided with at least one axially extending guiding hole, and the guiding hole communicates with the liquid storage space, and the first valve piece is sandwiched between the piston guiding member and the Between the bumps, the first valve cover is closed to each of the flow guiding holes.

The shock absorber according to claim 1 or 2, wherein the first valve piece is formed by laminating a plurality of sheets of highly elastic metal foil.

The shock absorber according to claim 2, wherein at least one of the closed end sides of the first opening of the first tubular body defines a slot, and the slot communicates with the first receiving space.

The shock absorber according to claim 4, wherein the closed end of the first pipe body is formed by fixing a fixed head, and the side of the fixed head is opened to communicate with the first receiving space. Slot.

The shock absorber according to claim 5, further comprising: a rebound controller, wherein the rebound controller comprises a rebound adjusting device disposed in the slot, and is disposed in the inner slot And abutting against the sliding sleeve of the inner tube, the sliding sleeve can control the displacement by the rebound adjusting device to adjust the opening, closing or closing state of the opening of the damping hole.

The shock absorber according to claim 6, wherein: a slot is formed in the adjacent side of the slot of the fixed head, and a second valve is disposed in the second slot, the second slot With elasticity, the second valve piece is blocked between the outer groove and the inner groove.

8. The shock absorber according to claim 7, further comprising: a valve tube, the valve The tube is disposed in the slot, and the potter tube is provided with a shaft hole and at least one axially extending split hole, and the second valve sheet is covered by each of the split holes.