CN206634141U - Single arm bicycle front truck wheel group structure - Google Patents

Abstract

It the utility model is related to a kind of single arm bicycle front truck wheel group structure.It includes front vehicle wheel, axletree, locking nut, clutch shaft bearing, second bearing blind flange and wheel arm, wheel arm is in single armed shape, the flower-drum of front vehicle wheel is rotatably arranged on axletree, axletree is installed in flower-drum, flower-drum is stretched out in the outer end of axletree, the outer end of axletree is provided with external screw thread, and the lower end of wheel arm is provided with locking hole.Wheel arm of the present utility model is single arm type, and the part such as front vehicle wheel of the present utility model, axletree, bearing, blind flange is assembled into front-wheel entirety, then axletree is locked on wheel arm by a locking nut, front vehicle wheel is integrally connected firmly with wheel arm, when user dismounts front vehicle wheel of the present utility model, only it need to unscrew or tighten locking nut, therefore front vehicle wheel of the present utility model dismounting is very easily, conveniently, rapidly.In addition, wheel arm of the present utility model is that single arm type is therefore simple in construction, succinct, production cost is low.

Description

Single arm bicycle front truck wheel group structure

Technical field

Single arm bicycle technical field is the utility model is related to, particularly a kind of single arm bicycle front truck wheel group structure.

Background technology

Bicycle is most convenient at present, can reduce space-consuming again, and meets the vehicles of ecological requirements, therefore, with Bicycle as the vehicles ridden instead of walk or midway is replaced, or even to lie fallow, body-building, widely people receive, and consumer exists In the requirement used, except the structure safety for strengthening vehicle body is outer, does the operation convenience repaired for that can facilitate to dismount and be No space-consuming etc. is also more and more paid attention to.As shown in figure 1, it is double-arm structure that the front fork 33 of existing bicycle is most of, it is double Arm-type front fork 33 virtually increases cost and make it that vehicle frame is wordy, unsightly, and the both arms of front fork pass through left and right nut lock Be scheduled on the axletree 34 of front vehicle wheel, thus in assembling, it is relatively complicated in maintenance, especially, when car tyre damage, and be intended to carry out When changing tire, it is necessary to two nuts are first screwed out, then vehicle frame is taken out by wheel shaft of one side front fork pine from rear wheel, and by whole group wheel carrier, It can just carry out changing tire work, therefore former double-arm front fork is not only fairly cumbersome relatively complicated on dismounting, maintenance wheel, and Double-arm front fork can also make troubles to the transport of bicycle, when user be intended to it is outgoing or be intended to be stored in smaller with vehicle carrying During space, because of the dismounting inconvenience of wheel, a few peoples can unload it, make the delivery of whole bicycle big compared with space-consuming and seem Inconvenience.In addition, the both ends of the axletree 34 of existing bicycle are very prominent, bicycle under steam, easily hang by axletree 34 To, bump against, encounter the either indoor thing of the barrier in roadside, and sharp parts easily be present on exposed axletree, hold Easily incised wound user, and exposed wheel shaft outward appearance is unsightly, it is wordy.

Utility model content

The purpose of this utility model be to provide it is a kind of it is simple and reasonable for structure, firm, disassembly is easy, convenient for front vehicle wheel, tears open Fill rapid single arm bicycle front truck wheel group structure.

What the purpose of this utility model was realized in：

A kind of single arm bicycle front truck wheel group structure, including front vehicle wheel, axletree, locking nut, clutch shaft bearing, the second axle Blind flange and wheel arm are held, the wheel arm is in single armed shape, and the flower-drum of the front vehicle wheel is rotatably arranged on axletree, described Axletree is installed in flower-drum, and flower-drum is stretched out in the outer end of axletree, and the outer end of axletree is provided with external screw thread, and the lower end of wheel arm is set There is locking hole, locking hole is stretched into the outer end of axletree, and is threadedly coupled with locking nut, and axletree is locked at car by locking nut In wheel arm.

The utility model can also improve further below.

The outer wall of the locking nut, which is provided with, compresses step, compresses step and the lower end of wheel arm is pressed on into axletree On.The pressing table component level is in the outside of locking hole.The compression step compresses wheel arm inside from the outside of locking hole, so as to The lower end of wheel arm is locked on the outer end of axletree.

The wheel arm and axletree connection at an acute angle, therefore structure of the present utility model is more firm, stress is more steady It is fixed.

The locking nut is located in the locking hole of wheel arm.Therefore locking nut intrinsic energy is in locking hole, locking nut Not exposed, outward appearance is very attractive in appearance, clean and tidy.

The flower-drum is rotatably arranged on axletree by clutch shaft bearing, second bearing, the flower-drum it is one side closed, another Side is opened wide, and blind flange covers the opening of flower-drum, and blind flange is stretched out in the outer end of axletree.

The inner end face of the locking nut is provided with screwed hole along its length, and the compression step is located at locking screw On the outer wall of female outer end.The compression step compresses wheel arm inside from the outside of locking hole, so as to which the lower end of wheel arm be locked Tightly on the outer end of axletree.

The compression step is annular in shape, and positioned at the outer end of locking nut, the nut check so that wheel arm is locked It is more firm to obtain.The locking nut 7 is preferably T-nut.

The outer end end face of the locking nut be provided with least two it is elastic turn hole position, it is described elastic to turn hole position to lock The center of nut outer end end face is center of circle annular spread on the outer end end face of locking nut.Therefore locking screw of the present utility model Mother must use special spanner to beat and must open, and theftproof performance is good.

Screwed hole on the locking nut is counterbore, so that the both ends of axletree are all hidden in locking screw respectively In female and flower-drum, outward appearance is very attractive in appearance, succinct.

The rear drum and blind flange correspond to clutch shaft bearing, second bearing is respectively equipped with clutch shaft bearing chamber, second bearing chamber, The clutch shaft bearing and second bearing have been respectively arranged on clutch shaft bearing chamber, second bearing intracavitary, and the axletree is installed on simultaneously Clutch shaft bearing, second bearing axis hole on.

The beneficial effects of the utility model are as follows：

（One）Wheel arm of the present utility model is single arm type, and front vehicle wheel of the present utility model, axletree, bearing, The parts such as blind flange are assembled into front-wheel entirety, and then axletree is locked on wheel arm by a locking nut, front vehicle wheel It is overall to be connected firmly with wheel arm, when user dismounts front vehicle wheel of the present utility model, only it need to unscrew or tighten locking nut, Therefore front vehicle wheel of the present utility model dismounts very easily, conveniently, rapidly.In addition, wheel arm of the present utility model is single arm type Therefore it is simple in construction, succinct, production cost is low.

（Two）Moreover, the both ends of axletree of the present utility model and locking nut are all hidden in respectively in flower-drum or car In the locking hole of wheel arm, so as to avoid the both ends of axletree from protruding wheel arm, the utility model solves existing vehicle Wheel shaft protrusion, easy the problem of being suspended to thing.Therefore wheel shaft end of the present utility model is not exposed, does not protrude, and will not be suspended to Barrier and outward appearance is very attractive in appearance, succinct.

（Three）In addition, the utility model uses special locking nut, it is therefore necessary to could be beaten using special spanner to open, Theftproof performance is good.

Brief description of the drawings

Fig. 1 is the attachment structure schematic diagram of existing bicycle front wheel and front fork.

Fig. 2 is the attachment structure schematic diagram of the utility model and main body of vehicle frame 9.

Fig. 3 is the utility model structure diagram.

Fig. 4 is Fig. 3 decomposition texture schematic diagram.

Fig. 5 is the utility model（Omit front vehicle wheel）Cross section structure diagram.

Embodiment

Below in conjunction with the accompanying drawings and embodiment is further described to the utility model.

Referring to shown in Fig. 2 to Fig. 5, a kind of single arm bicycle front truck wheel group structure, including front vehicle wheel 2, axletree 6, locking Nut 7, clutch shaft bearing 4, second bearing 5, blind flange 8 and wheel arm 1, the wheel arm 1 are in single armed shape, the front vehicle wheel 2 Flower-drum 3 be rotatably arranged on axletree 6, the axletree 6 is installed in flower-drum 3, and flower-drum 3, car are stretched out in the outer end of axletree 6 The outer end of wheel shaft 6 is provided with external screw thread, and the lower end of wheel arm 1 is provided with locking hole 12, and locking hole 12 is stretched into the outer end of axletree 6, and It is threadedly coupled with locking nut 7, axletree 6 is locked on wheel arm 1 by locking nut 7.

As more specifically technical scheme of the present utility model.

The outer wall of the locking nut 7, which is provided with, compresses step 71, compresses step 71 and the lower end of wheel arm 1 is pressed on into car On wheel shaft 6.The outside for compressing step 71 and being located at locking hole 12.The compression step 71 is from the outside of locking hole 12 toward internal pressure Tight wheel arm 1, so as to which the lower end of wheel arm is locked on the outer end of axletree.

The included angle B of the wheel arm 1 and axletree 6<90 °, the wheel arm 1 and 6 connection at an acute angle of axletree.Therefore originally The structure of utility model is more firm, and stress is more stable.

The locking nut 7 is located in the locking hole 12 of wheel arm 1.Therefore locking nut intrinsic energy is locked in locking hole Nut is not exposed, and outward appearance is very attractive in appearance, clean and tidy.

The flower-drum 3 is rotatably arranged on axletree 6 by clutch shaft bearing 4, second bearing 5, a side seal of the flower-drum 3 Close, opposite side opens wide, the opening of the capping flower-drum 3 of blind flange 8, the outer end stretching blind flange 8 of axletree 6.

The inner end face of the locking nut 7 is provided with screwed hole along its length, and the compression step 71 is located at lock On the outer wall of the tight outer end of nut 7.Therefore locking nut 7 is all hidden in locking hole 12, and locking nut is not exposed, and outward appearance is very beautiful See, be clean and tidy.

The compression step 71 is annular in shape, and positioned at the outer end of locking nut 7, the nut 7 so that wheel arm 1 is locked Lock more firm.The locking nut 7 is preferably T-nut.

The outer end end face of the locking nut 7 be provided with least two it is elastic turn hole position 72, it is described elastic to turn hole position 72 It is center of circle annular spread on the outer end end face of locking nut 7 using the center of locking nut outer end end face.Therefore the utility model Locking nut 7 must use special spanner could beat and must open, theftproof performance is good.

Screwed hole 73 on the locking nut 7 is counterbore, so that the both ends of axletree 6 stash, is hidden in In locking nut 7 and flower-drum 3, outward appearance is very attractive in appearance, succinct.

The corresponding clutch shaft bearing 4 of the rear drum 3 and blind flange 8, second bearing 5 are respectively equipped with clutch shaft bearing chamber, the second axle Chamber is held, the clutch shaft bearing 4 and second bearing 5 have been respectively arranged on clutch shaft bearing chamber, second bearing intracavitary, and the axletree 6 is same When be installed on clutch shaft bearing 4, second bearing 5 axis hole on.

Claims (10)

1. A kind of 1. single arm bicycle front truck wheel group structure, it is characterised in that：Including front vehicle wheel, axletree, locking nut, Yi Jiche Wheel arm, the wheel arm are in single armed shape, and the flower-drum of the front vehicle wheel is rotatably arranged on axletree, and the axletree is installed on flower In drum, flower-drum is stretched out in the outer end of axletree, and the outer end of axletree is provided with external screw thread, and the lower end of wheel arm is provided with locking hole, wheel Locking hole is stretched into the outer end of axle, and is threadedly coupled with locking nut, and axletree is locked on wheel arm by locking nut.
2. 2. single arm bicycle front truck wheel group structure according to claim 1, it is characterised in that：On the outer wall of the locking nut Provided with step is compressed, compress step and the lower end of wheel arm is pressed on axletree.
3. 3. single arm bicycle front truck wheel group structure according to claim 2, it is characterised in that：The wheel arm is in axletree Acute angle connects.
4. 4. single arm bicycle front truck wheel group structure according to claim 3, it is characterised in that：The locking nut is located at wheel In the locking hole of arm.
5. 5. single arm bicycle front truck wheel group structure according to claim 4, it is characterised in that：Also include clutch shaft bearing, second Bearing and blind flange, the flower-drum are rotatably arranged on axletree by clutch shaft bearing, second bearing, the side of the flower-drum Closing, opposite side open wide, and blind flange covers the opening of flower-drum, and blind flange is stretched out in the outer end of axletree.
6. 6. single arm bicycle front truck wheel group structure according to claim 5, it is characterised in that：The inner end of the locking nut Face is provided with screwed hole along its length, and the step that compresses is on the outer wall of locking nut outer end.
7. 7. single arm bicycle front truck wheel group structure according to claim 6, it is characterised in that：The compression step is annular in shape, And positioned at the outer end of locking nut.
8. 8. single arm bicycle front truck wheel group structure according to claim 7, it is characterised in that：The locking nut is T-shaped spiral shell It is female.
9. 9. single arm bicycle front truck wheel group structure according to claim 8, it is characterised in that：The outer end end of the locking nut Face be provided with least two it is elastic turn hole position, it is described that elastic to turn hole position using the center of locking nut outer end end face be that the center of circle is annular It is distributed on the outer end end face of locking nut.
10. 10. single arm bicycle front truck wheel group structure according to claim 9, it is characterised in that：Spiral shell on the locking nut Pit is counterbore.