CN206029687U - Bicycle front derailleur locating tool - Google Patents

Abstract

The utility model discloses a bicycle front derailleur locating tool, its technical scheme main points are including the base, the centre gripping subassembly and the setting element that grasp the frame set firmly on the base, setting element and frame butt, the centre gripping subassembly is including relative extensible member and the main shaft portion that sets up, the end that main shaft portion kept away from the extensible member has set firmly the butt board, main shaft portion can stretch into the mounting hole, the end that the extensible member is close to main shaft portion is the exposed core, the extensible member is connected with and is used for the driving piece, the exposed core is pressed the five -way on the butt board during extension of driving piece drive extensible member, distance during the shrink of driving piece drive extensible member between exposed core and the main shaft portion is not less than the degree of depth of mounting hole, the mounting bracket that is used for fixing a position the front derailleur mounted position sets firmly on the base, mounting bracket upper surface and preceding speed regulator butt, be equipped with slide subassembly and the locking Assembly that supply the mounting bracket to slide along seat pipe length direction between mounting bracket and the base, the swift laborsaving effect to the different model front derailleur of frame installation has been reached.

Description

Bicycle front derailleur positions fixture

Technical field

This utility model is related to a kind of bicycle process units, and more particularly to a kind of Bicycle front derailleur positions fixture.

Background technology

As bicycle is liked by more and more people, the production scale of bicycle producer also gradually expands. Bicycle, also known as bicycle or bicycle, the small-sized ground vehicles of typically two wheels.After people rides car, with foot pedal as power, It is the vehicles of environmental protection.Bicycle can be used for riding instead of walk, going on a journey as the vehicles of environmental protection；Increasing people will Bicycle is gone on a tour for exercise of riding, bicycle as body-building apparatus；Bicycle itself is also a sportss campaign, has public affairs Road cycle racing, Mountain bike, Track cycling, stunt bicycle race etc..

The speed change system of bicycle is the indispensable part of bicycle, and it is by changing chain and different forward and backward The cooperation of the toothed disc of size is changing speed speed.The size of the size of front fluted disc and rear tooth disk determines bicycle turn foot Dynamics when pedaling.According to the ability of different drivers, you can adjust the speed of bicycle by the size for adjusting forward and backward fluted disc, or It is the different section of reply, road conditions.In bicycle shift system, important composition component includes the front derailleur on vehicle frame.

A kind of existing vehicle frame, structure lead to 61 as shown in figure 1,6 bottommost of vehicle frame is the five of cylinder, five logical 61 axial line Horizontally disposed, five logical 61 are provided with the installing hole 62 for later stage installation bicycle middle shaft, and five logical 61 outer wall is from left to right successively Down tube 66, seat pipe 63 and chain stay 64 is connected with, chain stay 64 and seat pipe 63 are fixedly connected with seat stays 65 away from five terminations for leading to 61, under Pipe 66 is fixedly connected on the lower end of head tube 68 away from five terminations for leading to 61, fixed between the upper end of head tube 68 and the upper end of seat pipe 63 It is connected with pipe 67.

As shown in Figures 2 and 3, front derailleur 7 is included the clamp ring 72 being connected with seat pipe 63 and is arranged on front change The guide plate 71 of 7 lower end of fast device.

In order to ensure installation accuracy and the service precision in bicycle later stage, clamp ring 72 is weighed with the link position of seat pipe 63 very much Will, need very accurate.Existing bicycle manufacturer using manually installing, as vehicle frame 6 is frame structure, volume compared with Greatly, heavier-weight, needs the hand-held vehicle frame 6 of workman, vehicle frame 6 is helped to seat pipe 63 and is directed at oneself, then found again in installation process Installation site of the clamp ring 72 in seat pipe 63, clamp ring 72 is fixed on the relevant position of seat pipe 63 with bolt, during fixing bolt also Need to ensure the stability of vehicle frame 6, a front derailleur 7 is often installed and is required for wasting a large amount of muscle power of workman, it is very laborious Also waste of time simultaneously.

Utility model content

What the purpose of this utility model was to provide a kind of convenient power-saving installs different model front derailleur voluntarily to vehicle frame Herba Plantaginis variator positions fixture.

Above-mentioned technical purpose of the present utility model technical scheme is that：Speed change before a kind of bicycle Device positions fixture, including base, is installed with the clamp assemblies and keeper for clamping vehicle frame, keeper on the base Abut with vehicle frame for fixed vehicle frame position, the clamp assemblies include the extensible member being oppositely arranged and main shaft part, main shaft part Abutting plate is installed with away from the termination of extensible member, main shaft part can extend into installing hole, and extensible member is folder near the termination of main shaft part Hold end, extensible member is connected with the actuator for driving extensible member to move, bare terminal end is by five when actuator drives extensible member to extend It is logical to be pressed on abutting plate, the depth of the distance between bare terminal end and main shaft part not less than installing hole when actuator drives extensible member to shrink Degree, is installed with the installing rack for positioning front derailleur installation site on base, installing rack upper surface is abutted with front speed regulator, peace Shelve and be provided between base for installing rack along the sliding assembly of seat pipe length direction sliding and for making installing rack stop sliding The latch assembly of shifting.

By above-mentioned technical proposal, the installing hole of vehicle frame is enclosed within main shaft part, actuator drives extensible member elongation, clamping End abuts five logical being pressed on plate.Now vehicle frame can be rotated along main shaft part, vehicle frame is placed on the positioning element, realizes at 2 points Positioning, vehicle frame are fixed on base by fixation steadily.Do not need people hand steered, the main shaft of vehicle frame now and stable put Put in face of people.Front speed regulator is placed on into installing rack upper surface, even if now the position of front speed regulator is relative to vehicle frame Installation site, is directly tightened by bolts clamp ring in seat pipe.Whole installation process convenient power-saving, the installation of front speed regulator Position is also very accurate, it is ensured that safe precision.When needing to install the front derailleur of other models, the installation site of front derailleur Can be varied from, i.e., clamp ring can be lengthened accordingly or be shortened to five logical distances, now by installing rack along sliding assembly Installing rack, after being adjusted to the position for needing, is fixed, you can the front speed change to different model by glide direction sliding with latch assembly Device carries out location and installation, and convenient power-saving accelerates the production efficiency of bicycle.

Preferably, the installing rack upper surface is abutted with guide plate lower surface, between installing rack upper surface and main shaft part away from From equal to the distance between guide plate lower surface and installing hole.

By above-mentioned technical proposal, for front derailleur, guide plate be located at front derailleur lower end, be easy to workman will and The installation of clamp ring is not affected.

Preferably, speed searches installing rack upper surface being adapted with guide rail lower surface.

By above-mentioned technical proposal, the area of guide plate is larger, meeting if the locating surface that guide plate is positioned as front derailleur Highly stable, after adaptation, the installation locating effect of installing rack is more preferably stable.

Preferably, the slide block that the sliding assembly is included the slide rail being fixedly connected with base and is connected with slide rail sliding, Slide block is fixedly connected with installing rack.

By above-mentioned technical proposal, slide rail is relatively fixed with base, slide block can on slide rail along slide rail length side To sliding motion, slide block is fixedly connected with installing rack, i.e., installing rack being capable of the sliding motion on slide rail.

Preferably, the latch assembly includes the screw rod being threadedly coupled with slide block, one end of screw rod is installed with latch segment, spiral shell The other end of bar is threaded with handle, and handle latch segment in rotation process on screw rod is tightly abutted with slide rail.

By above-mentioned technical proposal, after latch segment is tightly abutted with slide rail, against frictional force therebetween by slide block with The relative locking of slide rail, it is impossible to move, when needing to release locking therebetween, only needs hand-held handle to rotate screw rod so that lock Away from slide rail, slide block can continue to do sliding motion on slide rail tight block.It is convenient and swift, install reliable.

Preferably, the keeper includes the positioning pipe of cylinder, the outer wall of positioning pipe is abutted with the lower surface of down tube.

By above-mentioned technical proposal, as the down tube of vehicle frame is longer, the position of installing hole is partial to the one end away from down tube again, So positioning pipe is abutted with down tube, enable to vehicle frame and be smoothly positioned on base plate, further improve stablizing for equipment Property.

Preferably, the positioning pipe outer wall is provided with elastic layer.

By above-mentioned technical proposal, as vehicle frame will be placed on positioning pipe, elastic layer can play buffering well and make With, it is to avoid when vehicle frame is placed on positioning pipe, vehicle frame surface produce scratch, it is ensured that the production of bicycle finish after entirety It is attractive in appearance, also extend the service life of bicycle.

Preferably, the extensible member includes electric pushrod, actuator includes the motor being connected with electric pushrod.

By above-mentioned technical proposal, electric pushrod uses motor as power source, it is not necessary to extra oil cylinder or Cylinder enables to whole equipment compact conformation, workshop cleaning as auxiliary.

Preferably, the bare terminal end is installed with rubber layer.

By above-mentioned technical proposal, when extensible member extends, bare terminal end is abutted with vehicle frame, and arranging rubber layer can increase Big frictional force therebetween so that it is more stable that vehicle frame is positioned.Rubber layer can reduce vehicle frame as clamping is produced simultaneously Cut, be further ensured that the intact of vehicle frame outward appearance.

Preferably, the main shaft part outer wall surface is provided with fricting strip.

By above-mentioned technical proposal, as main shaft part is and installing hole coordinates, fricting strip can increase rubbing therebetween Wipe power so that the two relatively more stable.Fricting strip is installed in into main shaft side wall so that winning vehicle frame every time constantly, fricting strip All without moving with vehicle frame, it is easy to use.

In sum, this utility model has the advantages that：Ensure to save manpower while increasing clamping stability, Can install for the front derailleur of different model carries out repeated utilization, cost-effective, also allows for installing, and improves work effect Rate, convenient power-saving complete the location and installation to front derailleur.

Description of the drawings

Fig. 1 is the structural representation of vehicle frame in background technology；

Fig. 2 is the structural representation of front derailleur in background technology；

Fig. 3 is structural representation of the front derailleur on vehicle frame in background technology；

Fig. 4 is the structural representation of Bicycle front derailleur positioning fixture in embodiment；

Fig. 5 is to embody the partial schematic diagram of installing rack connected mode in embodiment；

Fig. 6 is in order to the partial enlargement for embodying sliding assembly and latch assembly structure in the A portions of Fig. 5 is illustrated in embodiment Figure；

Fig. 7 is to embody the partial schematic diagram of locking block structure in embodiment；

Fig. 8 is the schematic diagram after finish；

Fig. 9 is that front derailleur is arranged on the schematic diagram on vehicle frame in embodiment.

In figure, 1, base；2nd, clamp assemblies；21st, electric pushrod；211st, bare terminal end；212nd, rubber layer；22nd, main shaft part； 221st, fricting strip；23rd, abut plate；24th, motor；3rd, positioning pipe；31st, elastic layer；4th, installing rack；5th, slide rail；51st, slide block； 52nd, screw rod；53rd, latch segment；54th, handle；6th, vehicle frame；61st, five lead to；62nd, installing hole；63rd, seat pipe；64th, chain stay；65th, it is seat stays； 66th, down tube；67th, upper pipe；68th, head tube；7th, front derailleur；71st, guide plate；72nd, clamp ring；8th, workbench.

Specific embodiment

This utility model is described in further detail below in conjunction with accompanying drawing.Wherein identical parts identical accompanying drawing Labelling is represented.It should be noted that the word "front", "rear", "left", "right", "up" and "down" used in describing below refers to It is the direction in accompanying drawing, word " bottom surface " and " top surface ", " interior " and " outward " are referred respectively to towards or away from particular elements geometry The direction at center.

Embodiment：A kind of Bicycle front derailleur 7 positions fixture, as shown in figure 4,8 upper surface of workbench is rectangle, work Make 8 upper surface of platform and be fixedly installed rectangular base 1, the length direction of base 1 is parallel with the width of workbench 8.

Electric pushrod 21 is fixedly installed in the width side of base 1, electric pushrod 21 is pointed to outside workbench 8 Termination is connected with motor 24.Electric pushrod 21 points to the bare terminal end 211 that the termination inside workbench 8 is cylinder（With reference to Fig. 5）, 211 outer wall of bare terminal end fix be equipped with rubber layer 212 made by elastomeric material.

Abutting plate 23 and main shaft part 22 are installed with the opposite side of the width of base 1, plate 23 are abutted for circle, main shaft Portion 22 is fixed on abutting plate 23 near the side of electric pushrod 21, and main shaft part 22 is cylindrical, between the circumferential side wall of main shaft part 22 Every the fricting strip 221 for being fixedly installed ring-type.The axial line of main shaft part 22 is overlapped with the axial line of bare terminal end 211.Main shaft part 22 depth and the deep equality of installing hole 62, the diameter of main shaft part 22 are adapted with the diameter of installing hole 62, and main shaft part 22 can Just to stretch in installing hole 62.

The positioning pipe 3 of cylinder, the outer wall parcel elasticity layer 31 of positioning pipe 3 are installed with the left end of electric pushrod 21. It is connected as workbench 8 is relatively fixed with base 1, in this embodiment, positioning pipe 3 is fixed on 8 surface of workbench, i.e. positioning pipe 3 It is relatively fixed on base 1.

Vehicle frame 6 is picked up by workman, and installing hole 62 is enclosed within main shaft part 22, and motor 24 drives electric pushrod 21 to stretch Long, bare terminal end 211 is abutted with vehicle frame 6 so that vehicle frame 6 is tightly abutted with plate 23 is abutted, and down tube 66 and the positioning pipe 3 of vehicle frame 6 are supported Connect, as shown in figure 8, vehicle frame 6 now is stably fixed positioned on workbench 8.

Fan-shaped installing rack 4 is provided with above plate 23 abutting, fan-shaped radian and the front derailleur 7 of 4 upper surface of installing rack Guide plate 71 be adapted.4 upper surface of installing rack is with the distance between main shaft part 22 equal to 71 lower surface of guide plate and installing hole 62 The distance between so that front speed change can be stable when being placed on installing rack 4, as shown in figure 9, the position that front derailleur 7 is located Put the installation site relative to vehicle frame 6 of exactly front speed change.

As shown in figure 5, installing rack 4 is arranged on base 1 by sliding assembly, locked with latch assembly.It is with reference to Fig. 6, sliding Moving component includes rectangular guide rail, offers chute, seat when length direction and the vehicle frame 6 of chute are positioned on equipment on guide rail The length direction of pipe 63 is parallel, and sliding in chute is connected with square slide block 51.With reference to Fig. 7, latch assembly is included on slide block 51 Screw rod 52 is threaded with, screw rod 52 is connected with handle 54 away from the ends screw at 1 center of base, and the other end of screw rod 52 is fixed There is latch segment 53.Slide block 51 is affixed by screw rod 52 with installing rack 4.When the position of positioning sliding block 51 is needed, handle 54 is tightened, So that the abutting with guide rail tightly of latch segment 53, in the presence of frictional force, slide block 51 cannot slide along slide rail 5, and it is right to realize The locking of installing rack 4.

Wherein, as shown in figure 8, the installing hole 62 of the vehicle frame 6 of front derailleur to be installed 7 is directed at main shaft part 22 by workman, so Afterwards vehicle frame 6 is enclosed within main shaft part 22, motor 24 drives bare terminal end 211 that vehicle frame 6 is tightly connected on abutting plate 23, Down tube 66 is placed on positioning pipe 3, and now vehicle frame 6 is positioned above fixture by the stable Bicycle front derailleur 7 that is positioned at.Then As shown in figure 9, workman is placed on the guide plate 71 of front derailleur 7 on locating rack, the position that now front speed change is located is its peace Holding position, completes front derailleur 7 and quickly, easily installs by be fixed on clamp ring 72 in seat pipe 63.When need peace During the front derailleur 7 of dress different model, position of the front derailleur 7 in seat pipe 63 needs adjustment, i.e., hand-held handle 54 is by handle 54 rotate so that produce gap between latch segment 53 and slide rail 5, and the frictional force between latch segment 53 and slide rail 5 disappears, slide block 51 Can the sliding motion on slide rail 5, as slide block 51 is relatively fixed with installing rack 4, i.e. the position of installing rack 4 is adjustable.To sum up, reach To the effect for installing different model front derailleur 7 to vehicle frame 6 of convenient power-saving.

This specific embodiment is only which is not to restriction of the present utility model, ability to explanation of the present utility model Field technique personnel can make the modification for not having creative contribution after this specification is read as needed to the present embodiment, but As long as all being protected by Patent Law in right of the present utility model.

Claims (10)

1. a kind of Bicycle front derailleur (7) position fixture, including base (1), it is characterised in that：It is fixed on base (1) There are the clamp assemblies (2) and keeper for clamping vehicle frame (6), keeper is abutted with vehicle frame (6) for fixed vehicle frame (6) position, described clamp assemblies (2) include extensible member and the main shaft part (22) being oppositely arranged, and main shaft part (22) is away from extensible member Termination be installed with abutting plate (23), main shaft part (22) can extend into installing hole (62), end of the extensible member near main shaft part (22) Head is bare terminal end (211), and extensible member is connected with the actuator for driving extensible member to move, when actuator drives extensible member to extend Bare terminal end (211) is pressed in five logical (61) on abutting plate (23), bare terminal end (211) and main shaft when actuator drives extensible member to shrink Depth of the distance between the portion (22) not less than installing hole (62), is installed with base (1) for positioning front derailleur (7) installation The installing rack (4) of position, installing rack (4) upper surface are abutted with front speed regulator, are provided with for peace between installing rack (4) and base (1) (4) are shelved along the sliding assembly of seat pipe (63) length direction sliding and for making installing rack (4) stop the latch assembly of sliding.

2. Bicycle front derailleur (7) according to claim 1 position fixture, it is characterised in that：On installing rack (4) Surface is abutted with guide plate (71) lower surface, and the distance between installing rack (4) upper surface and main shaft part (22) are equal under guide plate (71) The distance between surface and installing hole (62).

3. Bicycle front derailleur (7) according to claim 2 position fixture, it is characterised in that：On installing rack (4) Surface is adapted with guide plate (71) lower surface.

4. Bicycle front derailleur (7) according to claim 1 position fixture, it is characterised in that：The sliding assembly bag Include the slide rail (5) being fixedly connected with base (1) and the slide block (51) being connected with slide rail (5) sliding, slide block (51) and installing rack (4) it is fixedly connected.

5. Bicycle front derailleur (7) according to claim 4 position fixture, it is characterised in that：The latch assembly bag Include the screw rod (52) being threadedly coupled with slide block (51), one end of screw rod (52) is installed with latch segment (53), screw rod (52) it is another End is threaded with handle (54), and handle (54) latch segment (53) in rotation process on screw rod (52) is tightly supported with slide rail (5) Connect.

6. Bicycle front derailleur (7) according to claim 1 position fixture, it is characterised in that：The keeper includes The positioning pipe (3) of cylinder, the outer wall of positioning pipe (3) are abutted with the lower surface of down tube (66).

7. Bicycle front derailleur (7) according to claim 6 position fixture, it is characterised in that：Positioning pipe (3) outward Wall is provided with elastic layer (31).

8. Bicycle front derailleur (7) according to claim 1 position fixture, it is characterised in that：The extensible member includes Electric pushrod (21), actuator include the motor (24) being connected with electric pushrod (21).

9. Bicycle front derailleur (7) according to claim 1 position fixture, it is characterised in that：Bare terminal end (211) It is installed with rubber layer (212).

10. Bicycle front derailleur (7) according to claim 1 position fixture, it is characterised in that：Main shaft part (22) Outer wall surface is provided with fricting strip (221).