CN201151455Y - Bicycle shock-absorbing front fork structure with adjustable stroke - Google Patents

Abstract

A bicycle shock-absorbing front fork structure with adjustable stroke is mainly characterized in that a shock-absorbing module with adjustable stroke is arranged between an inner fork tube and an outer fork tube of the shock-absorbing front fork, wherein the inner fork tube and the outer fork tube generate buffer shock absorption under the action of an elastic device; wherein the upper adjusting rod is combined with the top of the compression spring by the spring fixing block, the bottom of the compression spring is tightly combined with an adjusting block, the adjusting block is internally provided with a central screw hole for the lower adjusting rod to be screwed and sleeved, and the bottom end of the adjusting rod is locked and fixed with the bottom of the outer fork tube; therefore, after the upper end and the lower end of the shock absorption module are fixedly connected with the knob at the upper edge of the sleeve seat of the inner fork tube and the bottom end of the outer fork tube, the compression spring can be linked by turning the knob, and the buffer stroke between the inner fork tube and the outer fork tube can be adjusted under the action of not changing the expansion ratio of the compression spring by virtue of the vertical displacement of the lower adjusting rod locked at the bottom end of the outer fork tube by the adjusting block fastened at the bottom.

Description

Adjustable Stroke Bicycle Shock-absorbing Front Fork Structure

technical field

The utility model is related to a shock-absorbing front fork of a bicycle. cross.

Background technique

In order to improve the comfort of riding, most of the current bicycles have shock-absorbing structures, so that when they are running on rough roads or encounter potholes, the wheels can produce shock-absorbing and buffering effects in due course through the shock-absorbing structures. Most of the oil hydraulic shock absorber front forks are equipped with spring components to generate oil pressure restoring force. If it is used in different riding environments, moderately adjusting the buffer stroke of the shock absorber can help the ride. Comfort, such as when riding on an uphill section, due to the elevation angle of the slope, if you ride a long shock absorber stroke, the car will easily fall backward due to the increase in elevation angle, and it will make it difficult for the rider Stampede hard.

Utility model content

The main purpose of this utility model is to provide a bicycle shock-absorbing front fork structure with an adjustable stroke, which can adjust the buffer stroke of the shock absorber without changing the spring expansion ratio, which can help to provide the rider with Riding performance during travel.

In order to achieve the above object, the bicycle shock-absorbing front fork structure with adjustable stroke of the utility model is provided with an adjustable-stroke shock absorber between the inner and outer fork tubes of the shock-absorbing front fork, which is elastically installed to produce buffering and shock-absorbing. Shock module; its characteristic is that the shock module includes:

An upper adjustment rod, which is combined with the top of a compression spring, protrudes from a sleeve fixed on the top end of the inner fork tube and locks with the knob;

A compression spring, the top of which is fixed with the upper adjustment rod, and the bottom is tightly combined with an adjustment block;

A spring fixing block, which is fixed on the top of the compression spring and connected with the upper adjustment rod;

An adjustment block, which is sleeved and fixed on the bottom of the compression spring, has a central screw hole for the lower adjustment rod to be threaded through the sleeve;

The adjustment rod is a threaded column formed with a thread segment and the adjustment block is screwed and socketed, and the bottom end is locked and fixed with the bottom of the outer fork pipe.

The upper adjusting rod is provided with a convex ring stop between the rod bodies, and the rod part under the convex ring block is a screw body.

The top of the compression spring is tapered and snugly stacked, and the bottom is a short tight end.

The spring fixing block is a conical body with a central hole, and the central hole is set on the screw body of the upper adjusting rod, and is tightly fixed on the constricted end of the compression spring by a nut.

A stop ring protrudes from the bottom end of the adjustment block to abut against the bottom of the compression spring, and an O ring is sheathed on the side of the stop ring.

The top end of the rod of the lower adjusting rod is provided with a small-diameter sleeve end for a gasket to be sleeved on, and a radial through hole is provided on the sleeve end.

The liner is fixedly connected with the sleeve end of the lower adjusting rod at the inner side of the adjustment block of the compression spring, and has a socket corresponding to the through hole of the sleeve end for a pin to insert and position it.

The adjustment block fastened at the bottom of the compression spring and the bottom end of the inner fork tube are sealed and resisted by a positioning block.

The positioning block is provided with a ring groove for a buffer washer to hook.

In this way, after the upper and lower ends of the shock-absorbing module are connected and fixed with the knob on the upper edge of the inner fork tube sleeve and the bottom end of the outer fork tube, turning the knob can link the compression spring, and the adjustment can be made by tightening the bottom. The block is moved up and down on the lower adjustment rod locked on the bottom of the outer fork tube, so that the buffer stroke between the inner and outer fork tubes can be adjusted without changing the expansion ratio of the compression spring.

Description of drawings

In order to make the above-mentioned features and advantages of the utility model more obvious and easy to understand, a preferred embodiment is given below, together with diagrams and figure numbers, to describe the composition of the utility model and the effects achieved in detail as follows :

Fig. 1 is the three-dimensional exploded view of the utility model and inner and outer fork pipes.

Fig. 2 is the three-dimensional exploded view of the utility model.

Fig. 3 is the combined cross-sectional schematic diagram of the shock-absorbing front fork of the present utility model.

Fig. 4 is a combined cross-sectional schematic diagram of the utility model after adjusting the stroke.

Detailed ways

First of all, please refer to Fig. 1, a bicycle shock-absorbing front fork structure with an adjustable stroke of the utility model, which is mainly tied to the inner and outer fork tubes 11, 12 of the shock-absorbing front fork 10 which are elastically installed to produce shock-absorbing There is a shock absorber module 20 with an adjustable stroke, please refer to Fig. 2 again, the shock absorber module 20 includes:

An upper adjusting rod 21 is combined with the top of a compression spring 22, and a convex ring stopper 210 is arranged between the rod bodies. And locked with the knob 40, and the rod under the convex ring stop 210 is a screw body 211;

A compression spring 22, the top of which is formed into a constricted end 220 that tapers and fits on top of each other, while the bottom is a small section of tight end 221;

A spring fixing block 23 is set in the constricted end 220 on the top of the compression spring 22 and is connected and fixed with the upper adjustment rod 21. It has a conical body with a central hole 230 and can be sleeved on the screw body 211 of the upper adjustment rod 21. , and can be tightly fixed on the constricted end 220 of the compression spring 22 by a nut 24;

An adjustment block 25 is sleeved in the tight end 221 at the bottom of the compression spring 22. It has a central screw hole 250, and a stop ring 251 protrudes from the bottom end to abut against the bottom of the compression spring 22. The side of the stop ring 251 The upper part is set as a concave groove 252 for nesting an O-ring 26;

The adjustment rod 27 is a column rod formed with a thread segment 270 in the upper half and the adjustment block 25 is screwed and socketed, and the bottom end is locked and fixed with the bottom of the outer fork pipe 12, and the thread segment 270 The top of the column rod is provided with a small diameter socket end 271, which can be used for a liner 28 to be sleeved, and the socket end 271 is provided with a radial through hole 272;

A liner 28 is fixedly connected with the sleeve end 271 of the lower adjustment rod 27 at the inner side of the adjustment block 25 of the compression spring 22, and has a socket 280 corresponding to the through hole 272 of the sleeve end 271 for a pin. 29 insert it into position.

The above is an overview of the structure, position and mutual connection relationship of the various components of the preferred embodiment of the utility model; then, the action of the utility model and the expected effect to be achieved are stated as follows:

Continue please refer to Fig. 3, Fig. 4, because the compression spring 22 top of the present utility model forms the constriction end 220, and can be clamped and fixed with the spring fixing block 23 of upper adjusting rod 21 and conical body, and compression spring 22 bottoms are tightly The closed tight end 221 can be tightly fitted with the adjustment block 25, and the central screw hole 250 of the adjustment block 25 is used for the screw connection of the lower adjustment rod 27, so after the current adjustment rod 27 is locked and fixed with the outer fork tube 12, it can be borrowed The compression spring 22 is turned over by the knob 40 linked with the upper adjustment rod 21, so that the compression spring 22 can be displaced up and down on the lower adjustment rod 27 because of the adjustment block 25 fastened at the bottom of the compression spring 22.

Advantageously, the top end of the lower adjustment rod 27 can be connected with a pad 29 to prevent the lower adjustment rod 27 from detaching from the adjustment block 25 .

Moreover, the adjustment block 25 fastened at the bottom of the compression spring 22 and the bottom end of the inner fork tube 11 can be sealed and resisted by a positioning block 50, and the positioning block 50 is provided with a ring groove 51 for a buffer washer 60 Hook set.

The shock-absorbing module 20 composed of the above-mentioned components can be connected and fixed with the knob 40 at the upper edge of the seat 30 of the inner fork tube 11 and the bottom end of the outer fork tube 12 due to the upper and lower adjustment rods 21 and lower adjustment rods 27 at the upper and lower ends. When turning the knob 40, the compression spring 22 of the shock-absorbing module 20 can move up and down on the lower adjusting rod 27 locked on the bottom of the outer fork tube 12 through the adjusting block 25 fastened at the bottom, thereby making the shock-absorbing module 20 can adjust the buffer strokes L1, L2 between the inner and outer fork tubes 11, 12 (as shown in Fig. 3 and Fig. 4 ) without changing the expansion ratio of the compression spring 22 .

To sum up, the utility model has excellent progressive practicability among similar products. At the same time, the technical data of this type of structure has been searched at home and abroad, and no similar structure has been found in the literature.

However, the above description is only a preferred feasible embodiment of the utility model, so all equivalent structural changes made by applying the specification of the utility model and the scope of the patent application should be included in the scope of the patent of the utility model .

Claims (9)

1. A bicycle shock-absorbing front fork structure with an adjustable stroke. A shock-absorbing module with an adjustable stroke is arranged between the inner and outer fork tubes of the shock-absorbing front fork, which are elastically installed to produce a buffer and shock absorber; its features That is, the shock absorber module includes: An upper adjustment rod, which is combined with the top of a compression spring, protrudes from a sleeve fixed on the top end of the inner fork tube and locks with the knob; A compression spring, the top of which is fixed with the upper adjustment rod, and the bottom is tightly combined with an adjustment block; A spring fixing block, which is fixed on the top of the compression spring and connected with the upper adjustment rod; An adjustment block, which is sleeved and fixed on the bottom of the compression spring, has a central screw hole for the lower adjustment rod to be threaded through the sleeve; The adjustment rod is a threaded column formed with a thread segment and the adjustment block is screwed and socketed, and the bottom end is locked and fixed with the bottom of the outer fork pipe. 2. The stroke-adjustable bicycle shock-absorbing front fork structure according to claim 1, wherein the upper adjustment rod is provided with a convex ring stopper between the rod bodies, and the rod part under the convex ring stopper is a screw body. 3. The stroke-adjustable shock-absorbing front fork structure of a bicycle as claimed in claim 1, wherein the top of the compression spring is formed into a constricted end that tapers and overlaps, while the bottom is a Tight ends of small segments. 4. The bicycle shock-absorbing front fork structure with adjustable stroke as claimed in claim 1, characterized in that the spring fixing block is a conical body with a central hole, and the central hole is placed on the screw body of the upper adjustment rod , and is tightly fixed on the constricted end of the compression spring by a nut. 5. The bicycle shock-absorbing front fork structure with adjustable stroke as claimed in claim 1, characterized in that a retaining ring protrudes from the bottom end of the adjustment block to abut against the bottom of the compression spring, and a ring is sleeved on the edge of the retaining ring. O-rings. 6. The stroke-adjustable bicycle shock-absorbing front fork structure as claimed in claim 1, characterized in that, the top end of the pole of the lower adjustment rod is provided with a small-diameter sleeve end for a pad to be sleeved, and The sleeve end is provided with a radial through hole. 7. The bicycle shock-absorbing front fork structure with adjustable stroke as claimed in claim 6, characterized in that the liner is located inside the adjustment block of the compression spring and is fixedly connected with the socket end of the lower adjustment rod, and has a Corresponding to the socket of the through hole of the sleeve end, a pin is used to insert and position it. 8. The stroke-adjustable bicycle shock-absorbing front fork structure according to claim 1, characterized in that the adjustment block fastened at the bottom of the compression spring and the bottom end of the inner fork tube are sealed and locked by a positioning block. 9. The stroke-adjustable shock-absorbing front fork structure of a bicycle as claimed in claim 8, wherein a ring groove is provided on the positioning block for a buffer washer to hook.

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