CN219545003U - Locking structure for shock absorber of bicycle front fork - Google Patents

Abstract

The utility model relates to a locking structure of a bicycle front fork shock absorber, which is used for connecting a front fork and a shock absorber set, and comprises a locking piece, a locking piece and a locking piece, wherein the locking piece is provided with an upper end face and a lower end face, the upper end face is assembled with the shock absorber set and is provided with an upper convex block in a protruding way, the lower end face is combined with the front fork and is provided with a lower convex block in a protruding way, the locking piece is provided with a plurality of screw holes penetrating through the upper end face and the lower end face, each screw hole surrounds the upper convex block and the lower convex block, and a shaft hole penetrates through the lower convex block from the upper convex block to the lower convex block; the locking pieces are penetrated and assembled in the screw holes, and when the locking pieces are assembled on the front fork, the locking pieces are movably locked in the screw holes on the end surface of the front fork; the shock absorber set and the front fork can be quickly installed, and the shock absorber set and the front fork can be independently replaced when each part is damaged, so that the expenditure of cost is reduced, and the defect that the whole front fork set and the shock absorber need to be replaced and maintenance consumes man-hours is overcome.

Description

Locking structure for shock absorber of bicycle front fork

Technical Field

The utility model relates to a locking structure of a bicycle front fork shock absorber, which is a technology applied to the field of bicycles, and mainly aims to provide a bicycle upper pipe, a shock absorber and a front fork which can be quickly installed and can be independently replaced when each part is damaged so as to reduce the expenditure of cost.

Background

The bicycle has been known for use in outdoor riding, exercise riding, racing, etc., but with the development of the bicycle industry, along with the development of peripheral components, peripheral goods, etc., the assembly problem between the front fork position and the shock absorber in the bicycle has been discussed.

In the early stage, in the combination of the front fork position structure and the shock absorber, the conventional manner is shown in fig. 11, which is the combination between the general shock absorber 3 and the front fork 4, the top end of the front fork 4 is inserted with an upper fork tube 41, the top end of the upper fork tube 41 is assembled with an upper tube group 5, in addition, the periphery of the upper fork tube 41 is sleeved with the shock absorber 3, the structure is the combination between the front fork 4 and the shock absorber 3 in the market at present, but the conventional manner has a problem that the mounting between the shock absorber 3 and the front fork 4 is assembled in a tight manner, the spring structure in the shock absorber 3 is utilized to spring the outer surface of the shock absorber 3 onto the front fork 4, so that when a part of the whole set of front fork 4 and the shock absorber 3 is damaged and needs to be replaced, a special tool is necessary to disassemble, even some parts are difficult to disassemble but need to be destroyed, the whole set of front fork 4 and the part 3 is not damaged, and the whole set of the whole of front fork 4 and the shock absorber 3 is more serious in terms of the general load can be caused.

In addition, both the front fork 4 and the shock absorber 3 are already assembled to the bicycle frame, and the entire set of front fork 4 together with the shock absorber 3 must be removed for replacement, which is certainly time consuming for the serviceman.

Disclosure of Invention

In order to improve the combination between the front fork and the shock absorber described in the prior art, most of the shock absorber are assembled in an urgent manner, so that the problem that the whole set of the front fork and the shock absorber must be eliminated due to the fact that the shock absorber cannot be disassembled even is very difficult to disassemble.

The technical scheme adopted for solving the technical problems is as follows:

the locking structure for front fork shock absorber includes locking part with upper and lower end surfaces, upper lug and lower lug in the upper end surface and lower lug in the lower end surface, several screw holes penetrating from the upper end surface to the lower end surface and surrounding the upper lug and the lower lug, and shaft hole penetrating from the upper lug to the lower lug; the locking pieces are penetrated and assembled in the screw holes, and when the locking pieces are assembled on the end face of the front fork, the locking pieces are movably locked in the screw holes on the end face of the front fork.

The utility model has the beneficial effects that the assembly between the shock absorber and the front fork can be movably disassembled and assembled, so that when the respective parts are damaged, the parts can be independently replaced and maintained, thereby reducing the cost burden during replacement.

Drawings

The utility model will be further described with reference to the drawings and examples.

FIG. 1 is a schematic view of the present utility model applied to a front fork and a shock absorber set.

Fig. 2 is a partially exploded perspective view of fig. 1.

Fig. 3 is a schematic perspective view of the locking device of the present utility model.

Fig. 4 is a perspective view of another perspective view of the locking member of the present utility model.

FIG. 5 is a schematic cross-sectional view of the V-V line shown in FIG. 3.

FIG. 6 is a schematic cross-sectional view of line VI-VI of FIG. 1.

Fig. 7 is a schematic view of the outer sleeve member of fig. 1 pulled upward at one end to reveal the removal of each lock member.

FIG. 8 is a schematic diagram illustrating the operation of the front fork to detach the shock absorber set by removing the lock in FIG. 7.

FIG. 9 is a schematic diagram showing the assembly of the damper assembly and the upper fork tube, and showing another disassembly of the locking elements.

FIG. 10 is a schematic exploded view of FIG. 9 with the locking members removed and the upper fork tube together with the locking members removed from the front fork.

Fig. 11 is a prior art schematic. The reference numerals in the figures illustrate:

front fork 100

Lock hole 101

Group hole 102

Assembling groove 103

Annular wall 1031

Slot chamber 1032

Shock absorber set 200

External member 201

Spring member 202

Bicycle 300

Upper fork tube 400

Bottom cap 500

Upper cover set 600

Locking piece 1

Upper end face 11

Lower end face 12

Upper bump 13

Main block portion 131

Tooth block 1311

Side block portion 132

Arc groove 133

Notch 134

Under bump 14

Screw hole 15

Upper counterbore 151

Down-shrink orifice 152

Oblique guide inner hole surface 153

Shaft hole 16

Lock 2

Head 21

Bottom end surface 211

Top end face 212

Annular conical surface 213

Body portion 22

Shock absorber 3

Front fork 4

Upper fork tube 41

Upper tube group 5

Detailed Description

In order to clearly illustrate the manner in which the above-recited objects and advantages of the present utility model are attained, reference should be made to the accompanying drawings which illustrate in detail the features and advantages of embodiments of the present utility model. Referring to FIGS. 1 to 10, a bicycle front fork shock absorber locking structure according to the present utility model is used as a connection between a front fork 100 and a shock absorber set 200 and is mounted on a bicycle 300 (as shown in FIG. 10), and comprises a locking member 1 having an upper end surface 11 and a lower end surface 12, wherein the upper end surface 11 is axially protruded with an upper protrusion 13, the upper protrusion 13 is gear-shaped, the lower end surface 12 is axially protruded with a lower protrusion 14, the lower protrusion 14 is cylindrical, the locking member 1 is provided with a plurality of screw holes 15 penetrating from the upper end surface 11 to the lower end surface 12, each screw hole 15 surrounds the upper protrusion 13 and the lower protrusion 14, and the shaft hole 16 penetrates from the upper protrusion 13 to the lower protrusion 14; the locking pieces 2 are assembled in the screw holes 15 in a penetrating manner, and when the locking pieces 1 are assembled on the end face of the front fork 100, the locking pieces 2 are movably locked in the screw holes 15 on the end face of the front fork 100.

According to the above description, please refer to fig. 7 to 10, when the present utility model is mounted together with the front fork 100 and the shock absorber set 200 on the bicycle 300, it has two dismounting methods for the description, and when the front fork 100 is to be replaced, a maintainer only needs to move one end of the shock absorber set 200 upwards to expose the interior and see the position of each lock 2, then directly use tools (e.g. L-wrench, bicycle special tool, etc.) to detach each lock 2, and after each lock 2 is completely detached, the front fork 100 parts can be directly detached to be combined with the shock absorber set 200; secondly, the shock absorber set 200 is removed from the front fork 100 first, so that the locking piece 1 and each locking piece 2 are exposed, and at this time, a special tool or a general tool can be used for removing each locking piece 2, and the locking piece 1 and the pipe fittings in the front fork 100 are detached together; the two dismounting modes utilize the matching of the locking piece 1 and each locking piece 2, so that a maintainer does not need to destroy other components, the integrity of the other components is maintained, the burden and expenditure on cost can be reduced, and the dismounting mode can be adjusted according to the environment and the tools owned at present; in addition, for the manufacturer of the shock absorber set 200, each component can be sold independently, instead of only selling the whole set (the combination of the front fork 100 and the shock absorber set 200) of the kit, the price is high, and the assembly modularization can be realized in the manufacturing process, so that the benefit of the productivity of each component is increased.

In view of the above, further details of the present utility model will be described, first, please refer to fig. 3 to 5, in order to improve the bonding strength with the front fork 100, the upper bump 13 of the locking member 1 further includes a main block portion 131 and a plurality of side block portions 132, the main block portion 131 includes a plurality of tooth blocks 1311 protruding from the periphery, the number of the side block portions 132 is the same as that of the tooth blocks 1311, each side block portion 132 is connected to each tooth block 1311, each side block portion 132 is interposed between each screw hole 15 and the screw hole 15, the arrangement of each side block portion 132 and the main block portion 131 mainly provides the lock 2 to be firmly connected with the front fork 100, and another function is to protect each lock 2, since each side block portion 132 and the main block portion 131 are arranged in a protruding manner, it is higher than each screw hole 15, thereby being able to protect each lock 2 from collision with other parts.

Continuing the above, a plurality of arc grooves 133 are further dug downwards at the periphery of the top surface of the upper bump 13, and each arc groove 133 corresponds to each screw hole 15, each arc groove 133 is connected with the peripheral surface of each side block 132 and surrounds a part of each screw hole 15, a plurality of notches 134 are formed between one end of each side block 132 and one end of the adjacent side block 132, a maintainer can quickly reach the position of the tool in use and correspond to each lock 2 through the arrangement of each arc groove 133, and the arrangement of each notch 134 provides a region where a finger can extend into the screw hole 15 when the maintainer is about to take each lock 2, so that each lock 2 can be reliably hooked (not shown), and the front fork 100 and the shock absorber set 200 can be smoothly separated and detached.

Referring to fig. 5 and 6, the main block portion 131 and the side block portion 132 are mainly used for protecting each lock 2, and each screw hole 15 is configured to prevent each lock 2 from falling, so each screw hole 15 further includes an upper reaming hole 151, a lower shrinking hole 152, and an inclined inner hole surface 153 connecting the upper reaming hole 151 and the lower shrinking hole 152, each upper reaming hole 151 is formed on the upper end surface 11 of the lock 1, the lower shrinking hole 152 is formed on the lower end surface 12 of the lock 1, the hole diameter of the upper reaming hole 151 is larger than the hole diameter of the lower shrinking hole 152, each lock 2 further includes a head 21 and a body 22, the body 22 of each lock 2 is connected to the bottom end surface 211 of each head 21, each head 21 has a top end surface 212 and a ring tapered surface 213 connecting the bottom end surface 211 and the top end surface 212, each locking element 2 passes through the lower shrinkage hole 152 of each screw hole 15 with its body portion and is locked to the lock holes 101 on the top surface of the front fork 100, the top end surface 212 of each locking element 2 head 21 is on the same level as the upper reaming hole 151, or the top end surface 212 of each locking element 2 head 21 is higher than the upper reaming hole 151, the ring tapered surface 213 of each locking element 2 is abutted against the inclined inner hole 153 of each screw hole 15, so that the locking of each locking element 2 will not fall from the screw hole 15, and the top end surface 212 of each head 21 of each locking element 2 is lower than the top surface of each side block 132, thereby protecting each locking element 2 in the area formed by the main block 131, each side block 132 and each screw hole 15.

In order to be able to mutually lock and combine with each lock 2 and be able to be mounted on the frame of the bicycle 300, please see fig. 2 and 6, the front fork 100 penetrates the group hole 102 downwards from the top surface, the lower bump 14 of the lock 1 is inserted into one end of the group hole 102, the lower end surface 12 is abutted against the end surface of the front fork 100, the upper fork tube 400 is inserted into the shaft hole 16 of the upper bump 13, and the bottom cap 500 is inserted into the other end of the group hole 102 and is locked with the upper fork tube 400; in order to enhance the assembly firmness between the front fork and the locking member, an assembly groove 103 is further recessed at one end of the front fork 100, which is combined with the locking member, the assembly groove 103 comprises a ring-shaped annular wall 1031 and a groove chamber 1032, the space of the groove chamber 1032 is disc-shaped like the shape of the locking member 1, so that the locking member 1 is not inserted into the groove chamber 1032 in assembly, the locking member 1 is abutted against the annular wall 1031 at the circumferential side, and each screw hole 15 is arranged at the bottom surface of the groove chamber 1032 of the assembly groove 103, so that the locking member 1 is limited by the annular wall 1031 and does not shake freely and transversely, and the force born by the locking member 1 can be dispersed by the limited positioning between the annular wall 1031 and the locking member 1 through the arrangement of the assembly groove 103, thereby maintaining the service life of the locking member 1 and stabilizing the assembly of the locking member 1 and the front fork 100, as shown in fig. 2 and 6.

In addition, the shock absorber 200 further includes a sleeve 201 and a spring member 202, the spring member 202 is sleeved on the upper fork 400, the sleeve 201 is wrapped around the spring member 202 and sleeved on the upper fork 400, the sleeve 201 is elastically compressed and restored, one end of the sleeve 201 is concavely folded towards the locking member 1 and is abutted against the top surface of each locking member 2, the other end of the sleeve 201 is assembled on the upper cover 600, the upper cover 600 is sleeved on the upper fork 400, one end of the spring member 202 is abutted against the inner wall surface of the sleeve 201, and the other end of the spring member 202 is abutted against the bottom surface of the upper cover 600, thereby the spring member 202 of the shock absorber 200 can be elastically compressed and buffered along the acting force direction, and the sleeve 201 is provided to protect the spring member 202 from being influenced by external factors and interfere with the compression operation of the spring member 202, as shown in fig. 6.

The above description is only of the preferred embodiments of the present utility model, and is not intended to limit the present utility model in any way, and any simple modification, equivalent variation and modification made to the above embodiments according to the technical principles of the present utility model still fall within the scope of the technical solutions of the present utility model.

Claims (9)

1. A locking structure of a bicycle front fork shock absorber, which is used for connecting a front fork with a shock absorber set, and is characterized by comprising:

the locking piece is provided with an upper end face and a lower end face, the upper end face is assembled with the shock absorber group and is provided with an upper protruding block in an axially upward protruding mode, the lower end face is combined with the front fork and is provided with a lower protruding block in an axially downward protruding mode, the locking piece is provided with a plurality of screw holes penetrating from the upper end face to the lower end face, each screw hole surrounds the upper protruding block and the lower protruding block, and the shaft hole penetrates from the upper protruding block to the lower protruding block;

the locking pieces are penetrated and assembled in the screw holes, and when the locking pieces are assembled on the end face of the front fork, the locking pieces are movably locked in the screw holes on the end face of the front fork.

2. The bicycle front fork shock absorber locking structure according to claim 1, wherein the upper bump further comprises a main block portion and a plurality of side block portions, the main block portion has a plurality of tooth blocks protruding from the periphery, the number of the side block portions is the same as that of the tooth blocks, the side block portions are connected to the tooth blocks, and the side block portions are interposed between the screw holes.

3. The bicycle front fork shock absorber locking structure according to claim 2, wherein a plurality of arc grooves are further dug downwards at the periphery of the top surface of the upper protruding block, each arc groove corresponds to each screw hole, each arc groove is connected with the peripheral surface of each side block part and surrounds part of each screw hole, and a plurality of notches are formed between one end of each side block part and one end of the adjacent side block part.

4. The bicycle front fork shock absorber locking structure according to claim 1, wherein each screw hole further comprises an upper expansion hole, a lower expansion hole and an inclined guide inner hole surface connecting the upper expansion hole and the lower expansion hole, each upper expansion hole is arranged on the upper end surface of the locking piece, the lower expansion hole is arranged on the lower end surface of the locking piece, and the diameter of the upper expansion hole is larger than that of the lower expansion hole.

5. The shock absorber locking structure of claim 4, wherein each locking member further comprises a head portion and a body portion, the body portion of each locking member is connected to the bottom end face of each head portion, each head portion has a top end face and a ring tapered face connecting the bottom end face and the top end face, each locking member passes through the down-shrinkage orifice of each screw hole with the body portion and is locked to a plurality of locking holes on the top face of the front fork, the top end face of each locking member head portion is level with the upper reaming orifice, or the top end face of each locking member head portion is higher than the upper reaming orifice, and the ring tapered face of each locking member is abutted against the inclined guide inner hole face of each screw hole.

6. The shock absorber locking structure of claim 1, wherein the front fork is formed by penetrating a hole at a top surface downwards, a lower bump of the locking member is inserted into one end of the hole, the lower end surface is abutted against the end surface of the front fork, and an upper fork tube is inserted from a shaft hole of the upper bump, and is installed from the other end of the hole by a bottom cap and is locked with the upper fork tube.

7. The shock absorber locking structure of claim 6, wherein the shock absorber set further comprises an outer sleeve and a spring member, the spring member is sleeved on the upper fork tube, the outer sleeve is wrapped on the spring member and sleeved on the upper fork tube, the outer sleeve is elastically compressed and restored, and one end of the outer sleeve is concavely folded towards the locking member and is abutted against the top surface of each locking member.

8. The bicycle front fork shock absorber locking structure according to claim 7, wherein the other end of the outer sleeve is further assembled to an upper cover assembly, the upper cover assembly is assembled to the upper fork tube, in addition, one end of the spring member is abutted against the inner wall surface of the outer sleeve, and the other end of the spring member is abutted against the bottom surface of the upper cover assembly.

9. The structure according to claim 1, wherein an assembling groove is further recessed at one end of the front fork combined with the locking member, the assembling groove includes a ring wall portion and a groove chamber, the locking member is not inserted into the groove chamber and abuts against the ring wall portion at a peripheral side, and each locking hole is disposed at a bottom surface of the groove chamber of the assembling groove.