Pre-pressing adjusting structure of damping device

Abstract

The utility model relates to a damping device prepressing adjusting structure which at least comprises a base body, an adjusting pipe, a transmission rod and an adjusting knob, a first adjusting section is formed on the inner edge of the base body, a second adjusting section corresponding to the first adjusting section is arranged outside the adjusting pipe, the transmission rod can synchronously drive the adjusting pipe, and the adjusting knob is arranged on the base body. Therefore, the adjusting pipe can stretch out or retract through forward and reverse rotation relative to the seat body, the compression amount of the damping device can be adjusted according to requirements, the elastic bearing capacity of the damping device is changed, and meanwhile the effect that adjustment is smoother is achieved. And the range of the compression adjusting length and the elastic bearing capacity of the damping device can be further increased.

Description

Technical Field

[0001] The utility model relates to a pre-pressure regulating structure of a shock absorbing device, which is mainly applied to the technical field of bicycles. Background Art

[0002] Bicycles are currently the lightest means of transportation that can provide both leisure and fitness. Affected by the advancement of technology and the improvement of road quality, the speed of bicycles has been continuously increased. In recent years, in addition to paying attention to the requirements of bicycle brake systems, manufacturers have also continuously improved the shock absorption function. In order to overcome the different vibrations during the movement of bicycles, different shock absorption devices are usually installed in different parts of the bicycle body. For the handlebars that control the direction of travel, the shock absorption device is usually installed in the front fork connecting the handlebars and the front wheel to reduce the impact on the handlebars, avoid discomfort to the rider's hands, and improve its controllability.

[0003] The existing front fork is formed by connecting a lower leg for assembling the front wheel and a front fork vertical tube at the top end for arranging the handlebar, wherein the lower leg has two opposite inner tubes and a fork leg tube sliding relative to the inner tube, and the fork leg tube is used to be assembled at both ends of the wheel axle of the front wheel, and an elastic shock-absorbing group that can produce a shock-absorbing effect is supported between the inner tube and the fork leg tube, so that the vibration caused by the impact of road conditions can be reduced between the front fork and the front wheel;

[0004] The elastic shock absorber group of the shock absorbing device may reduce its elastic bearing capacity due to long-term use, and gradually lose its shock absorbing and buffering function. In addition, when encountering poor road conditions, the driver needs to pre-adjust and increase the compression of the shock absorber. However, the existing technology mainly uses adjustment bolts to directly loosen the elastic shock absorber group to achieve this. However, such a structure will become difficult to operate and unsmooth when the pre-compression elastic bearing capacity is to be increased, and it cannot be adjusted at any time according to the actual road conditions. At the same time, the adjustable compression length and elastic bearing capacity are limited in range, which cannot fully meet the needs of drivers in response to road conditions, so it needs further improvement. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a pre-compression adjustment structure of a shock absorbing device, which can adjust the compression amount of the shock absorbing device according to demand, and then change the elastic bearing capacity of the shock absorbing device to meet the shock absorbing needs of different road conditions. At the same time, it can make the adjustment action of the shock absorbing device smoother and more accurate, increase its compression adjustment length and the range of elastic bearing capacity, improve its practicability, and overcome the shortcomings of the prior art.

[0006] 4. The repairing kit for automotive dents, according to claim 1, wherein the foot stand comprises a through-hole, and the two foot pieces comprise two bosses, wherein the bosses comprise a through-hole, a screw bolt, and a nut. The bosses comprise a through-hole, a screw bolt, and a nut. The bosses comprise a through-hole, a screw bolt, and a nut. The bosses comprise a through-hole, a screw bolt, and a nut. The bosses comprise a through-hole, a screw bolt, and a nut. The bosses comprise a through-hole, a screw bolt, and a nut.

[0007] Preferably, the outer edge of the seat body has a locking portion for being fixed to a fixing member, and the locking portion can be a threaded section.

[0008] Preferably, a concave-convex gripping tooth portion is formed on the periphery of the top end of the seat body.

[0009] Preferably, the first adjustment section of the seat body and the second adjustment section of the adjustment tube can be internal and external threads that are threadedly engaged with each other.

[0010] Preferably, the bottom end of the adjustment tube has a push portion.

[0011] Preferably, the transmission rod has an accommodating hole at its axis, and the accommodating hole has a through hole with its axis passing through the screw head for the fixing bolt to pass through.

[0012] Preferably, the adjustment knob has a mounting seat, the mounting seat has an engaging groove for the engaging section to engage, and the mounting seat forms a screw hole column corresponding to the axis in the engaging groove for the fixing bolt to be locked.

[0013] Preferably, a cross-shaped grip is formed on the periphery of the adjustment knob.

[0014] Preferably, the top surface of the adjustment knob is provided with a rotation direction mark.

[0015] Preferably, the preload adjustment structure can be applied to a bicycle front fork, which is composed of a front fork vertical tube and a lower foot connected to the bottom end of the front fork vertical tube, wherein the top end of the front fork vertical tube can be used to assemble a horizontally arranged handle, and the lower foot is used to assemble a front wheel, the lower foot has two symmetrical fork legs for jointly assembling the front wheel, and a shock absorbing device that can produce a shock absorbing and buffering effect is arranged inside the fork legs, and the preload adjustment structure that can push the shock absorbing device is arranged at the top end of the fork legs.

[0016] The beneficial effect of the utility model is that through the display of the aforementioned technical means, the invention utilizes the adjustment tube that is screwed on the seat body, and the adjustment knob can be used to rotate the transmission rod to synchronously drive the adjustment tube to rotate, so as to control the adjustment tube to extend downward or retract upward, thereby adjusting the compression amount of the shock absorbing device to meet different road conditions, and can make the adjustment action smoother and more accurate, while increasing the range of its compression adjustment length and elastic bearing capacity, which can effectively improve its practicality and further realize its economic benefits.

[0017] The utility model is further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional sectional schematic diagram of the invention applied to a bicycle front fork shock absorbing device.

[0019] Figure 2 It is a side view cross-sectional schematic diagram of the invention applied to a bicycle front fork shock absorbing device.

[0020] Figure 3 It is a three-dimensional appearance schematic diagram of the preload adjustment structure of the shock absorbing device of the present invention.

[0021] Figure 4 It is a three-dimensional exploded schematic diagram of the preload adjustment structure of the shock absorbing device of the present invention.

[0022] Figure 5 It is another three-dimensional exploded schematic diagram of the preload adjustment structure of the shock absorbing device of the present invention.

[0023] Figure 6 It is a side view cross-sectional schematic diagram of the preload adjustment structure of the shock absorbing device of the present invention.

[0024] Figure 7 It is a side view cross-sectional schematic diagram of the preload adjustment structure of the shock absorbing device of the present invention after actual adjustment. DETAILED DESCRIPTION

[0025] The preload adjustment structure of the shock absorbing device of the present invention can be applied to a bicycle front fork 60, such as Figure 1 and Figure 2As shown, the bicycle front fork 60 is composed of a front fork vertical tube 61 and a lower leg 62 connected to the bottom end of the front fork vertical tube 61, wherein the top end of the front fork vertical tube 61 can be used to assemble a horizontally arranged handlebar (not shown in the figure), and the lower leg 62 is used to assemble a front wheel (not shown in the figure), and the lower leg 62 has two symmetrical fork legs 65 for jointly assembling the front wheel, and a shock absorbing device 50 capable of generating a shock absorbing and buffering effect is disposed in the fork legs 65, so that the shock absorbing device 50 of the bicycle front fork 60 can achieve a vibration reduction effect between the handlebar and the front wheel, so as to reduce the impact on the handlebar, and the feature of the invention is that a pre-compression adjustment structure 100 capable of pushing the shock absorbing device 50 is disposed at the top end of the fork legs 65, so as to selectively adjust the compression amount of the shock absorbing device 50.

[0026] like Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the preload adjustment structure 100 comprises a seat body 10, an adjustment tube 20, a transmission rod 30 and an adjustment knob 40, wherein the seat body 10 is a cap-shaped tube with a U-shaped cross section, and the outer edge of the seat body 10 has a locking portion 12 (such as an external thread) for fixing to a fixing member, and the fixing member can be a mounting portion 66 of the fork leg 65, and the inner edge of the seat body 10 is formed with a first adjustment section 13 for the aforementioned adjustment tube 20 to be screwed, and the top surface of the seat body 10 is formed with an axial through hole 14 extending along an axis for the aforementioned transmission rod 30 to be pivotally mounted, and the top periphery of the seat body 10 is formed with a concave-convex gripping tooth portion 15 for improving the grip of the seat body 10 when locked;

[0027] The adjusting tube 20 has a second adjusting section 21 on the outside corresponding to the first adjusting section 13 of the seat body 10, which may be a relative internal and external thread, a convex point, a spiral guide groove, etc., so that the adjusting tube 20 can be extended or retracted by rotating forward and reverse relative to the seat body 10, and the top of the adjusting tube 20 has a polygonal driving hole 23 corresponding to the axis, for assembling the transmission rod 30 to drive the adjusting tube 20, and the bottom of the adjusting tube 20 has a pushing portion 25 for pushing the shock absorbing device 50 through a pushing block 55;

[0028] The transmission rod 30 can be inserted into the adjustment tube 20, and the transmission rod 30 has a stopper 31 near the bottom end, and a polygonal driving column 32 corresponding to the polygonal driving hole 23 of the adjustment tube 20 is formed in the middle section. The top of the transmission rod 30 has a screw head 33 that can penetrate the axial through hole 14 of the base body 10, and the transmission rod 30 has an embedded segment 35 that penetrates the base body 10 at the top of the screw head 33. The transmission rod 30 has an accommodating hole 36 at the axis, and the accommodating hole 36 has a through hole 37 that penetrates the screw head 33 at the axis, so that a fixing bolt 38 can be inserted into the transmission rod 30, and the penetrated portion can be locked on the aforementioned adjustment knob 40;

[0029] Furthermore, the adjusting knob 40 has a mounting seat 41, and the mounting seat 41 has an embedding groove 42 corresponding to the embedding section 35 of the screw head 33, and the mounting seat 41 forms a screw hole column 43 corresponding to the axis in the embedding groove 42, which can be used for the aforementioned fixing bolt 38 to be locked, so that the transmission rod 30 disposed inside the adjusting tube 20 can be locked with the seat body 10 and the adjusting knob 40 as a whole, and a cross-shaped grip 45 is formed on the periphery of the adjusting knob 40, which can be convenient for holding and applying force when rotating, and a rotation direction mark 46 is formed on the top surface of the adjusting knob 40 for indicating the rotation direction of increasing or decreasing the compression amount of the aforementioned shock absorbing device 50; thereby, a shock absorbing device preload adjustment structure that can be smoothly controlled and can enhance the elastic bearing capacity is formed.

[0030] When this creation is actually used, Figure 1 , Figure 2 , Figure 6 and Figure 7 As shown, the preload adjustment structure 100 can be assembled in the fork leg 65 of the bicycle front fork 60, mainly by using the locking portion 12 of the seat body 10 to lock on the mounting portion 66 of the fork leg 65d. When the road condition is poor or the shock absorber 50 is tired and it is necessary to increase the compression of the shock absorber 50, the adjustment knob 40 is rotated so that the adjustment knob 40 can utilize the design of the locking groove 42 and the locking section 35 of the transmission rod 30 to drive the The transmission rod 30 rotates in situ relative to the seat body 10. At the same time, since the transmission rod 30 has the polygonal driving column 32 that cooperates with the polygonal driving hole 23 of the adjustment tube 20, the adjustment tube 20 can be rotated synchronously with the transmission rod 30. Moreover, since the adjustment tube 20 is screwed on the first adjustment section 13 of the seat body 10 by using the second adjustment section 21, the adjustment tube 20 can be displaced upward and retracted relative to the seat body 10, thereby allowing the shock absorbing device 50 to partially release the compression amount [such as Figure 6〕, to absorb greater vibration energy; on the contrary, when the road condition is relatively flat, the compression amount of the shock absorbing device 50 can be reduced to prevent the shock absorbing device 50 from being damaged due to long-term high compression amount. In operation, the adjustment knob 40 is reversed, and the transmission rod 30 is used to reversely rotate the adjustment tube 20, so that the adjustment tube 20 is displaced downward and extended, and then the adjustment tube 20 pushes against the push block 55 to compress the shock absorbing device 50〔as shown Figure 7 As shown], the load strength is increased, thereby achieving the purpose of adjusting the compression amount of the shock absorbing device 50.

[0031] From the foregoing description, it can be known that the pre-compression adjustment structure of the shock absorbing device of the present invention utilizes the adjustment tube 20 that is screwed onto the seat body 10, and the adjustment knob 40 can be used to rotate the transmission rod 30 to synchronously drive the adjustment tube 20 to rotate, so as to control the adjustment tube 20 to extend downward or retract upward, thereby adjusting the compression amount of the shock absorbing device 50 to meet the requirements of different road conditions, and can make the adjustment action smoother and more accurate, while increasing its compression adjustment length and the range of elastic bearing capacity, thereby improving its practicality.

[0032] The preload adjustment structure of the shock absorbing device of the present invention has the following advantages, such as:

[0033] First, the top of the base body 10 has the gripping teeth 15 , which can facilitate the gripping and operation of the base body 10 when it is locked.

[0034] Secondly, the adjusting tube 20 used for pressing against the shock absorbing device 50 is pressed by the tubular pressing portion 25, which has a larger effective area, can enhance the stability of its movement, and can disperse its pressure, thereby improving its bearing capacity.

[0035] Furthermore, the adjustment knob 40 has a cross-shaped grip 45, which is convenient for holding and applying force when rotating, and the top surface of the adjustment knob 40 has a rotation direction mark 46 for indicating whether to increase or decrease the compression amount, thereby improving the convenience of operation.

Claims

1. A preload adjustment structure of a shock absorbing device, which comprises at least a seat, an adjustment tube, a transmission rod and an adjustment knob; characterized in that: The seat body is a cap-shaped tube with a U-shaped cross-section, a first adjustment section is formed on the inner edge of the seat body, and an axial through hole with an axis extending therefrom is formed on the top surface of the seat body; a second adjustment section corresponding to the first adjustment section is provided on the outside of the adjustment tube, so that the adjustment tube can be extended or retracted by forward and reverse rotation relative to the seat body, and a polygonal driving hole corresponding to the axis is provided on the top end of the adjustment tube; the transmission rod can be inserted into the interior of the adjustment tube, and a polygonal driving column corresponding to the polygonal driving hole is formed in the middle section, and the top end of the transmission rod has a swivel head that can be pivoted through the axial through hole, and the transmission rod has an embedded clamping section that passes through the seat body at the top end of the swivel head, which is used to pass a fixing bolt through the interior of the transmission rod, and the protruding portion can be locked on the adjustment knob.

2. The preload adjustment structure of the shock absorbing device according to claim 1, characterized in that: The outer edge of the seat body has a locking portion for being fixed on a fixing member, and the locking portion can be a threaded section.

3. The preload adjustment structure of the shock absorbing device according to claim 1, characterized in that: A concave-convex gripping tooth portion is formed on the periphery of the top end of the seat body.

4. The preload adjustment structure of the shock absorbing device according to claim 1, characterized in that: The first adjustment section of the seat body and the second adjustment section of the adjustment tube can be internal and external threads that are threadedly engaged with each other.

5. The preload adjustment structure of the shock absorbing device according to claim 1, characterized in that: The bottom end of the adjustment tube is provided with a push portion.

6. The preload adjustment structure of the shock absorbing device according to claim 1, characterized in that: The transmission rod has a receiving hole at its axis, and the receiving hole has a through hole with its axis passing through the screw head for the fixing bolt to pass through.

7. The preload adjustment structure of the shock absorbing device according to claim 1, characterized in that: The adjusting knob has a mounting seat, the mounting seat has an embedding groove for the embedding section to latch, and the mounting seat forms a screw hole column corresponding to the axis in the embedding groove for the fixing bolt to be locked.

8. The preload adjustment structure of the shock absorbing device according to claim 1, characterized in that: A cross-shaped grip is formed on the periphery of the adjusting knob.

9. The preload adjustment structure of the shock absorbing device according to claim 8, characterized in that: The top surface of the adjusting knob is provided with a rotation direction mark.

10. The preload adjustment structure of the shock absorbing device according to claim 1, characterized in that: The preload adjustment structure can be applied to a bicycle front fork, which is composed of a front fork vertical tube and a lower leg connected to the bottom end of the front fork vertical tube, wherein the top end of the front fork vertical tube can be used to assemble a horizontally arranged handle, and the lower leg is used to assemble a front wheel, the lower leg has two symmetrical fork legs for jointly assembling the front wheel, and a shock absorbing device that can produce a shock absorbing and buffering effect is arranged inside the fork legs, and the top end of the fork legs is provided with the preload adjustment structure that can push the shock absorbing device.

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