CN219337645U - Clamping and positioning mechanism for bicycle repairing rack - Google Patents

Abstract

The utility model discloses a clamping and positioning mechanism of a bicycle repairing frame, which comprises a supporting main body and a clamping mechanism, wherein the clamping mechanism comprises an upper chuck and a lower chuck, the lower chuck is fixedly arranged on the supporting main body, the upper chuck is rotationally connected to the supporting main body through a first rotating shaft, the upper chuck and the lower chuck are buckled and then are used for clamping a bicycle, a locking structure is arranged between the upper chuck and the lower chuck, the locking structure comprises a locking plate, a locking piece and a first elastic piece, the locking piece is rotationally connected to the lower chuck through a second rotating shaft, and the first elastic piece always has a movement trend for driving the locking plate to be in locking fit with the locking piece. The utility model has the following advantages and effects: the novel mechanical structure is utilized in the scheme, and the novel mechanical structure has the effects of compact structure, high adjustment precision, firm locking of the locking structure and convenience in operation.

Description

Clamping and positioning mechanism for bicycle repairing rack

Technical Field

The utility model relates to the technical field of bicycle repair tools, in particular to a clamping mechanism of a bicycle repair frame.

Background

The bicycle is one of the more popular means of transportation of people's use, and in the use of bicycle, some spare part is difficult to avoid taking place to damage, and this just needs to maintain the bicycle, in order to make things convenient for the maintenance, needs to place the bicycle in suitable position, consequently, bicycle repair frame is more and more popular, and its convenience is fixed the position and the angle to the bicycle, makes the bicycle maintenance become simple and convenient.

The prior Chinese patent with the bulletin number of CN2494764Y discloses a bicycle repairing rack, a taper shank sleeve is sleeved at the tail part of a horizontal bracket combination, a tail knob penetrates through the horizontal sleeve combination and is in threaded connection with the tail part of the horizontal bracket combination, and the taper shank sleeve is tightly attached to the taper surface of the horizontal sleeve combination; the claw sleeve is respectively arranged in the claws through the check rings, the upper claw support and the handle are connected with the horizontal support through the support hinge, the handle shaft is arranged in the handle, the shaft is arranged in the horizontal support, then the threaded hinge passes through the handle shaft and the shaft, the spring, the adjustable nut, the small spring and the locking nut are simultaneously arranged in the threaded hinge, after the pipe is arranged in the two claws, the handle is pressed downwards, when the pipe is in place, the contact point of the cam on the handle and the horizontal support is a cam dead point, and the handle is self-locked under the action of the spring force.

However, the bicycle repair rack described above has the following disadvantages: the bicycle repairing rack is locked by adopting the matching of the cam structure and the small spring, the related cam structure is complex, the adjustable nut is required to be manually adjusted aiming at bicycle girder pipes with different diameters, the operation is inconvenient, the adjusting precision is not high enough, and the repeated adjustment is required to be troublesome.

Disclosure of Invention

The utility model aims to provide a clamping mechanism for a bicycle repair frame, which has the effects of compact structure, high adjustment precision, firm locking of a locking structure and convenient operation.

The technical aim of the utility model is realized by the following technical scheme: the utility model provides a bicycle repair frame clamping and positioning mechanism, including supporting main part, fixture includes chuck and lower chuck, support the last chuck that has set firmly of main part down, go up the chuck through first pivot rotate connect in support the main part, go up the chuck with be used for the centre gripping bicycle after the chuck lock down, go up the chuck with be equipped with locking structure between the chuck down, locking structure includes locking plate, locking piece and first elastic component, the locking piece through the second pivot rotate connect in down the chuck, first elastic component has the order of driving all the time the locking plate with locking piece locking complex motion trend.

Through adopting above-mentioned technical scheme, when needing to fix the centre gripping through the girder pipe of centre gripping framework to the bicycle, unlock locking plate and locking piece through external driving force, make first elastic component accumulation elastic potential energy, thereby open upper chuck and lower chuck relatively, place the girder pipe of bicycle between upper chuck and the lower chuck, then withdraw external driving force, thereby release the elastic potential energy that first elastic component accumulation, and drive locking plate and locking piece locking cooperation through first elastic component, realize the locking of upper chuck relatively lower chuck is fixed, thereby fix the girder pipe of bicycle, follow-up operator only need carry out relative adjustment to locking plate and locking piece, just can further adjust and fix a position fixture's opening angle, make things convenient for the operator to repair the bicycle, and locking structure locates between upper chuck and the lower chuck, space occupation rate has as far as possible, the utility model has compact structure, locking structure is firm, convenient for operation's effect.

The utility model is further provided with: the surface distribution of locking plate has a plurality of lock teeth, the locking piece corresponds lock tooth protruding be equipped with the card protruding, first elastic component is established to the torsional spring, the torsional spring cover is located the second pivot, the one end of torsional spring support in the chuck down, the other end of torsional spring support in the locking piece, the torsional spring has the order of driving all the time the card protruding support in the motion trend on the lock tooth.

By adopting the technical scheme, the clamping protrusions of the locking piece are driven to be abutted between the adjacent locking teeth on the locking plate through the torsion springs, the locking of the locking piece on the locking plate is realized, small-angle opening adjustment between the upper clamping head and the lower clamping head can be realized through close arrangement between the locking teeth, the adjustment precision is higher, and the clamping applicability of the utility model to bicycle girder pipes with different diameters is improved.

The utility model is further provided with: a second elastic piece is movably arranged between the upper chuck and the lower chuck, and the second elastic piece always has a movement trend of driving the upper chuck to open relative to the lower chuck.

Through adopting above-mentioned technical scheme, when the relative unblock of locking piece and locking plate, the second elastic component can open the relative lower chuck of upper chuck voluntarily, has improved operator's convenient operation.

The utility model is further provided with: the second elastic piece is provided with a spring, the upper clamping head is provided with a first limiting column corresponding to the spring in a protruding mode, the lower clamping head is provided with a second limiting column corresponding to the spring, one end of the spring is sleeved on the first limiting column and abuts against the upper clamping head, and the other end of the spring is sleeved on the second limiting column and abuts against the lower clamping head.

Through adopting above-mentioned technical scheme, the spring both ends cover respectively locate on first spacing post and the spacing post of second, can effectively prevent that the condition that the spring accidentally drops from taking place when upper chuck and lower chuck open relatively through the spring, improved the installation stability of spring.

The utility model is further provided with: the locking device is characterized in that a V-shaped elastic piece is arranged between the upper clamping head and the locking piece, a stop step is arranged on the side wall of the locking piece in an extending mode corresponding to the V-shaped elastic piece, the upper end of the V-shaped elastic piece is fixedly connected with the upper clamping head in a propping mode, the lower end of the V-shaped elastic piece is propped against the stop step, and the V-shaped elastic piece always has a movement trend of driving the locking piece to prop against the locking piece.

By adopting the technical scheme, when the upper chuck is opened relative to the lower chuck, the V-shaped elastic piece always acts on the locking piece, so that the locking piece is in locking fit with the locking piece, the locking piece is prevented from being relatively far away from the locking piece to cause locking looseness when the upper chuck is opened, and the locking stability of the locking device is improved.

The utility model is further provided with: the upper clamping head is provided with a pressing block, one end of the pressing block is hinged to the first rotating shaft, and the pressing block is in pressing fit with the upper clamping head.

Through adopting above-mentioned technical scheme, the operator can act on the chuck through the briquetting with down pressure, and the snatch of briquetting is convenient, and can reduce the condition that the operator directly pushes down the chuck and causes unexpected clamp to hinder.

The utility model is further provided with: the upper chuck is obliquely provided with an avoidance inclined plane corresponding to the locking plate.

By adopting the technical scheme, the avoidance inclined plane can effectively prevent the situation that the upper chuck drives the locking plate to bend and damage when the upper chuck opens relative to the lower chuck.

The utility model is further provided with: the inclined included angle alpha of the avoidance inclined plane is set to be 25-35 degrees.

The utility model is further provided with: the upper clamping head is provided with an upper clamping groove, the lower clamping head is provided with a lower clamping groove, the inner wall of the upper clamping groove is fixedly provided with a first rubber pad, and the inner wall of the lower clamping groove is fixedly provided with a second rubber pad.

Through adopting above-mentioned technical scheme, first rubber pad and second rubber pad cooperation improves the anti-skidding performance when upper chuck and lower chuck are to the centre gripping of bicycle girder pipe, also can make the contact between upper chuck, lower chuck and the bicycle girder pipe be flexible contact simultaneously, prevents that rigid contact from leading to the damage of the utility model or bicycle girder pipe.

The utility model is further provided with: the opposite surfaces of the first rubber pad and the second rubber pad are convexly provided with a plurality of anti-slip protrusions.

By adopting the technical scheme, the anti-slip bump can improve the compressive stress of the upper clamping head and the lower clamping head on the bicycle girder, increase the clamping force of the anti-slip bump on the bicycle girder and improve the clamping firmness.

In summary, the utility model has the following beneficial effects: the locking plate and the locking piece are additionally arranged between the upper chuck and the lower chuck, locking matching is carried out through the clamping protrusion on the locking piece and the locking tooth on the locking plate, and the adjustment and positioning of the upper chuck relative to the lower chuck on the supporting main body are realized.

Drawings

Fig. 1 is a structural diagram of the present utility model.

Fig. 2 is a longitudinal cross-sectional view of the clamping mechanism of the present utility model, the clamping mechanism being in a closed condition.

Fig. 3 is an enlarged view of a portion of the area a of fig. 2 in accordance with the present utility model.

Fig. 4 is a longitudinal cross-sectional view of the clamping mechanism of the present utility model, the clamping mechanism being in an open state.

Fig. 5 is an enlarged view of a portion of the area B of fig. 4 in accordance with the present utility model.

In the figure: 1. a support body; 2. a fixed cylinder; 3. a rotating rod; 31. an upper chuck; 310. an upper clamping groove; 311. a through hole; 312. a first limit post; 313. a caulking groove; 314. avoidance slope; 32. a lower chuck; 320. a lower clamping groove; 321. the second limit column; 33. briquetting; 331. a pressing part; 3311. an insert; 332. an extension; 4. a locking plate; 41. locking teeth; 42. a stop step; 5. a locking member; 51. a clamping protrusion; 52. a trigger; 61. a first rotating shaft; 62. a second rotating shaft; 7. a torsion spring; 8. a spring; 9. v-shaped elastic sheets; 101. a first rubber pad; 102. a second rubber pad; 103. a non-slip bump.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

The utility model discloses a clamping and positioning mechanism of a bicycle repairing rack, which is shown in figures 1-3, and comprises a supporting main body 1 and a clamping mechanism, wherein the supporting main body 1 comprises a fixed cylinder 2 and a rotating rod 3 movably connected with the end part of the fixed cylinder 2, one end of the rotating rod 3 is fixedly provided with a lower chuck 32, an upper chuck 31 is rotationally connected with the rotating rod 3 through a first rotating shaft 61, the upper chuck 31 and the lower chuck 32 are buckled and then used for clamping the bicycle, a locking structure is arranged between the upper chuck 31 and the lower chuck 32, the locking structure comprises a locking plate 4, a locking piece 5 and a first elastic piece, the first elastic piece of the utility model is provided with a torsion spring 7, the locking piece 5 is rotationally connected with the lower chuck 32 through a second rotating shaft 62, a plurality of locking teeth 41 are distributed on the surface of the locking plate 4, the locking piece 5 is provided with the clamping convex 51 in a convex mode corresponding to the locking tooth 41, the torsion spring 7 is sleeved on the second rotating shaft 62, one end of the torsion spring 7 is propped against the lower chuck 32, the other end of the torsion spring 7 is propped against the locking piece 5, the torsion spring 7 always has a movement trend of driving the clamping convex 51 to prop against the locking tooth 41, the locking piece 4 is in locking fit with the locking piece 5, the clamping convex 51 of the locking piece 5 is driven by the torsion spring 7 to prop against adjacent locking teeth 41 on the locking piece 4, locking of the locking piece 5 on the locking piece 4 is achieved, small-angle opening adjustment between the upper chuck 31 and the lower chuck 32 can be achieved through close-packed arrangement, adjustment accuracy is higher, and clamping applicability of the locking piece 4 to bicycle girder pipes with different diameters is improved; a trigger 52 is fixedly arranged at the bottom of the locking piece 5, and an operator can conveniently lock or unlock the locking piece 5 and the locking piece 4 by pulling the trigger 52.

As shown in fig. 4-5, a second elastic piece is movably arranged between the upper chuck 31 and the lower chuck 32, the second elastic piece is provided with a spring 8, the spring 8 piece always has a movement trend of driving the upper chuck 31 to open relative to the lower chuck 32, and when the locking piece 5 and the locking piece 4 are unlocked relatively, the spring 8 can automatically open the upper chuck 31 relative to the lower chuck 32, so that the operation convenience of an operator is improved; the upper clamping head 31 is convexly provided with a first limit post 312 corresponding to the spring 8, the lower clamping head 32 is provided with a second limit post 321 corresponding to the spring 8, one end of the spring 8 is sleeved on the first limit post 312 and abuts against the upper clamping head 31, the other end of the spring 8 is sleeved on the second limit post 321 and abuts against the lower clamping head 32, two ends of the spring 8 are respectively sleeved on the first limit post 312 and the second limit post 321, and therefore the situation that the spring 8 accidentally drops when the upper clamping head 31 and the lower clamping head 32 are opened relatively through the spring 8 can be effectively prevented, and the installation stability of the spring 8 is improved.

As shown in fig. 3 and 5, a V-shaped elastic piece 9 is arranged between the upper chuck 31 and the locking piece 4, a stop step 42 is extended and arranged on the side wall of the locking piece 4 corresponding to the V-shaped elastic piece 9, the upper end of the V-shaped elastic piece 9 is abutted and fixed on the upper chuck 31, the lower end of the V-shaped elastic piece 9 is abutted against the stop step 42, the V-shaped elastic piece 9 always has a movement trend of driving the locking piece 4 to abut against the locking piece 5, when the upper chuck 31 is opened relative to the lower chuck 32, the V-shaped elastic piece always acts on the locking piece 4, so that the locking piece 4 is in locking fit with the locking piece 5, the locking loose condition caused by the fact that the locking piece 4 is relatively far away from the locking piece 5 when the upper chuck 31 is opened can be effectively prevented, and the locking stability of the locking device is improved.

As shown in fig. 2-5, the upper chuck 31 is provided with a pressing block 33, one end of the pressing block 33 is hinged to the first rotating shaft 61, the pressing block 33 is in press fit with the upper chuck 31, the pressing block 33 comprises a pressing part 331 and an extending part 332, an embedded block 3311 is convexly arranged on the pressing part 331 relative to the upper chuck 31, an embedded groove 313 is formed on the upper chuck 31 corresponding to the embedded block 3311, the embedded block 3311 is in clamping fit with the embedded groove 313, an operator can apply lower pressure to the upper chuck 31 through the pressing part 331 of the pressing block 33, the pressing block 33 is convenient to grasp, and the condition that the operator directly presses the upper chuck 31 to cause accidental clamping injury can be reduced.

As shown in fig. 5, the upper chuck 31 is obliquely provided with an avoidance slope 314 corresponding to the locking plate 4, the inclination angle alpha of the avoidance slope 314 is set to be 25-35 degrees, the avoidance slope 314 can effectively prevent the situation that the upper chuck 31 drives the locking plate 4 to bend and damage when the upper chuck 31 opens relative to the lower chuck 32, and the too large inclination angle of the avoidance slope 314 easily causes loosening of the locking plate 4 and the too small inclination angle easily causes bending and damage of the locking plate 4, so that the inclination angle alpha is set to be 30 degrees.

As shown in fig. 3 and 5, the upper clamping head 31 is provided with an upper clamping groove 310, the lower clamping head 32 is provided with a lower clamping groove 320, the upper clamping head 31 is fixedly provided with a first rubber pad 101 on the inner wall of the upper clamping groove 310, the lower clamping head 32 is fixedly provided with a second rubber pad 102 on the inner wall of the lower clamping groove 320, the first rubber pad 101 is matched with the second rubber pad 102, the anti-skid performance of the upper clamping head 31 and the lower clamping head 32 when clamping a bicycle girder tube is improved, and meanwhile, the contact between the upper clamping head 31 and the lower clamping head 32 and the bicycle girder tube can be flexible contact, so that the damage of the bicycle girder tube or the bicycle girder tube caused by rigid contact is prevented; the opposite surfaces of the first rubber pad 101 and the second rubber pad 102 are convexly provided with a plurality of anti-slip protrusions 103, and the anti-slip protrusions 103 can improve the compressive stress of the upper clamping head 31 and the lower clamping head 32 on the bicycle girder, so that the clamping force of the bicycle girder is improved, and the clamping firmness is improved.

The basic working principle of the utility model is as follows: when the girder tube of the bicycle is required to be fixedly clamped through the clamping framework, the locking plate 4 and the locking piece 5 are unlocked through external driving force, so that elastic potential energy is accumulated by the first elastic piece, the upper clamping head 31 is opened relative to the lower clamping head 32, the girder tube of the bicycle is placed between the upper clamping head 31 and the lower clamping head 32, then the external driving force is removed, so that elastic potential energy accumulated by the first elastic piece is released, the locking plate 4 is driven to be in locking fit with the locking piece 5 through the first elastic piece, the locking fixation of the upper clamping head 31 relative to the lower clamping head 32 is realized, the girder tube of the bicycle is fixed, a follow-up operator only needs to relatively adjust the locking plate 4 and the locking piece 5, the opening angle of the clamping mechanism is further adjusted and positioned, the bicycle is convenient to repair by the operator, and the locking structure is arranged between the upper clamping head 31 and the lower clamping head 32, so that the space occupation rate is reduced as much as possible.

The foregoing description is only of the preferred embodiments of the utility model, and all changes and modifications that come within the meaning and range of equivalency of the structures, features and principles of the utility model are therefore intended to be embraced therein.

Claims (10)

1. The utility model provides a bicycle repair frame clamping and positioning mechanism, is including supporting main part (1), fixture, its characterized in that:

the clamping mechanism comprises an upper clamping head (31) and a lower clamping head (32), the lower clamping head (32) is fixedly arranged on the supporting main body (1), the upper clamping head (31) is rotationally connected to the supporting main body (1) through a first rotating shaft (61), the upper clamping head (31) and the lower clamping head (32) are buckled and then used for clamping a bicycle, a locking structure is arranged between the upper clamping head (31) and the lower clamping head (32), the locking structure comprises a locking plate (4), a locking piece (5) and a first elastic piece, the locking piece (5) is rotationally connected to the lower clamping head (32) through a second rotating shaft (62), and the first elastic piece always has a motion trend for driving the locking plate (4) to be in locking fit with the locking piece (5).

2. The bicycle repair rack clamping and positioning mechanism as claimed in claim 1, wherein: the surface distribution of locking plate (4) has a plurality of lock teeth (41), locking piece (5) corresponds lock tooth (41) protruding card protruding (51) that is equipped with, first elastic component is established to torsional spring (7), torsional spring (7) cover is located second pivot (62), the one end of torsional spring (7) support in chuck (32) down, the other end of torsional spring (7) support in locking piece (5), torsional spring (7) have drive all the time card protruding (51) support in the motion trend on lock tooth (41).

3. The bicycle repair rack clamping and positioning mechanism as claimed in claim 1, wherein: a second elastic piece is movably arranged between the upper clamping head (31) and the lower clamping head (32), and the second elastic piece always has a movement trend of driving the upper clamping head (31) to open relative to the lower clamping head (32).

4. A bicycle repair rack clamping and locating mechanism as claimed in claim 3, wherein: the second elastic piece is set to be a spring (8), the upper clamping head (31) is corresponding to the spring (8) and is convexly provided with a first limiting column (312), the lower clamping head (32) is corresponding to the spring (8) and is provided with a second limiting column (321), one end of the spring (8) is sleeved on the first limiting column (312) and abuts against the upper clamping head (31), and the other end of the spring (8) is sleeved on the second limiting column (321) and abuts against the lower clamping head (32).

5. The bicycle repair rack clamping and positioning mechanism as claimed in claim 1, wherein: the locking device is characterized in that a V-shaped elastic piece (9) is arranged between the upper clamping head (31) and the locking piece (4), a stop step (42) is arranged on the side wall of the locking piece (4) in a corresponding extending mode of the V-shaped elastic piece (9), the upper end of the V-shaped elastic piece (9) is fixedly connected with the upper clamping head (31) in a butt mode, the lower end of the V-shaped elastic piece (9) is abutted to the stop step (42), and the V-shaped elastic piece (9) always has a movement trend of driving the locking piece (4) to be abutted to the locking piece (5).

6. The bicycle repair rack clamping and positioning mechanism as claimed in claim 1, wherein: the upper clamping head (31) is provided with a pressing block (33), one end of the pressing block (33) is hinged to the first rotating shaft (61), and the pressing block (33) is in press fit with the upper clamping head (31).

7. The bicycle repair rack clamping and positioning mechanism as claimed in claim 1, wherein: the upper clamping head (31) is obliquely provided with an avoidance inclined plane (314) corresponding to the locking plate (4).

8. The bicycle repair rack clamping and positioning mechanism as claimed in claim 7, wherein: the inclined included angle alpha of the avoidance inclined plane (314) is set to be 25-35 degrees.

9. The bicycle repair rack clamping and positioning mechanism as claimed in claim 1, wherein: the upper clamping head (31) is provided with an upper clamping groove (310), the lower clamping head (32) is provided with a lower clamping groove (320), the upper clamping head (31) is fixedly provided with a first rubber pad (101) on the inner wall of the upper clamping groove (310), and the lower clamping head (32) is fixedly provided with a second rubber pad (102) on the inner wall of the lower clamping groove (320).

10. The bicycle repair rack clamping and positioning mechanism as claimed in claim 9, wherein: the surface of the first rubber pad (101) opposite to the surface of the second rubber pad (102) is convexly provided with a plurality of anti-slip bulges (103).

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