CN210437320U

CN210437320U - Rear wheel subassembly folding device

Info

Publication number: CN210437320U
Application number: CN201921227798.8U
Authority: CN
Inventors: 朱军; 李贤成
Original assignee: Ningbo Turuida Leisure Products Co ltd
Current assignee: Ningbo Turuida Leisure Products Co ltd
Priority date: 2019-07-31
Filing date: 2019-07-31
Publication date: 2020-05-01
Anticipated expiration: 2029-07-31

Abstract

The utility model discloses a rear wheel subassembly folding device, its characterized in that: including frame (1) and rear wheel support (2), the end of frame (1) is equipped with connecting portion (1.1), the one end of rear wheel support (2) is rotated and is connected on connecting portion (1.1), connecting portion (1.1) is equipped with joint ring (3) with the rotation junction of rear wheel support (2), be equipped with a plurality of joint grooves (3.1) of radially setting up along joint ring (3) in the circumference of joint ring (3), be equipped with pull rod (4) of carrying out the joint with joint groove (3.1) on connecting portion (1.1). The utility model provides a rear wheel subassembly folding device which is easy to fold and place and convenient to carry.

Description

Rear wheel subassembly folding device

Technical Field

The utility model relates to a bicycle field, concretely relates to rear wheel subassembly folding device.

Background

In daily life, more and more vehicles are used for traveling, bicycles are no longer simple transportation tools, and the bicycles can be used for exercising bodies, riding sightseeing and the like, but activities such as exercising bodies, riding sightseeing and the like can go to suburbs, parks and the like, the places can be in remote areas, and after the bicycles are ridden, physical and mental fatigue can be caused, so that the bicycles are not beneficial to later-stage playing or exercising, in this case, people often drive the motor vehicle to the places to play, and at the moment, the bicycles are not convenient to carry.

Disclosure of Invention

The to-be-solved technical problem of the utility model is, overcome present technical defect, provide one kind and make the easy folding of rear wheel subassembly of bicycle place, make a rear wheel subassembly folding device of bicycle portable.

The technical scheme of the utility model, a rear wheel subassembly folding device, including frame and rear wheel support, the end of frame is equipped with connecting portion, the one end of rear wheel support is rotated and is connected on connecting portion, the rotation junction of connecting portion and rear wheel support is equipped with the joint ring, be equipped with a plurality of joint grooves along the radial setting of joint ring week of joint ring, be equipped with the pull rod that carries out the joint with the joint groove on the connecting portion.

The utility model has the advantages that: rotate through rear wheel support and connecting portion and be connected, make the rear wheel support rotate around connecting portion to the realization carries out position adjustment to the bicycle rear wheel, folds the rear wheel subassembly of bicycle promptly, and then realizes reducing bicycle occupation space's purpose, and through the cooperation of joint ring with the pull rod, can make the rear wheel subassembly fold and fix in a plurality of positions, realizes different folding schemes.

As an improvement of the utility model, be equipped with spacing post on the rear wheel support, be equipped with on the connecting portion and be used for carrying out spacing groove to the rear wheel support with spacing post cooperation, when spacing post offsets with the spacing groove, pull rod and joint groove joint, through the improvement, and through the setting of spacing groove, can make the bicycle when using, avoid the rear wheel subassembly to appear connecting unstably, the phenomenon of random pivoted appears, avoids the occurence of failure.

As an improvement of the utility model, one side of joint ring is located to the spacing groove, the opposite side of joint ring is equipped with the folding groove, the folding groove sets up about joint ring symmetry with the spacing groove, through the improvement, can make the rear wheel subassembly carry out 180 degrees foldings, realizes the occupation space minimizing of bicycle.

As an improvement of the utility model, the rear wheel support includes two cradling pieces, two the both sides of connecting portion are located respectively to the cradling piece, be equipped with first connecting hole on the connecting portion, be equipped with the second connecting hole relative with first connecting hole on the cradling piece, two the cradling piece passes first connecting hole and second connecting hole with connecting portion through the connecting axle and is connected, joint ring fixed connection is on connecting portion, through the improvement, can make the rear wheel support be connected more stably with connecting portion, and the atress is more balanced.

As an improvement of the utility model, the bottom of connecting portion is equipped with the standing groove that supplies the joint ring to place, the top of connecting portion is equipped with the through-hole that supplies the pull rod to remove, through the improvement can make overall structure compacter after the installation, also can protect the joint ring simultaneously, avoids the joint ring to receive external influence damaged phenomenon to appear.

As an improvement of the utility model, the position of through-hole is equipped with the extension post, through the improvement, can protect the straightness of pull rod, avoid the pull rod the condition of bending to appear, also can carry on spacingly to the removal of pull rod simultaneously, avoid the pull rod the condition of slope to appear in the use.

As an improvement of the utility model, threaded connection has a stop collar on the surface of extension post, spacing cover is equipped with spacing hole, the pull rod includes canned paragraph, spacing section and application of force section, the canned paragraph is used for with joint ring joint, spacing section is located between canned paragraph and the application of force section, the diameter of canned paragraph is greater than the aperture in spacing hole, the aperture in spacing hole is greater than the diameter in spacing section, through the improvement, can be spacing with the pull rod, when avoiding the pull rod to pull out and relieve the joint with the joint ring, directly pull out the pull rod is whole, follow-up need reinstall, extravagant plenty of time, also can avoid the pull rod to be pulled out by whole simultaneously, the condition of losing appears.

As an improvement of the utility model, be equipped with the spring between spacing hole and the canned paragraph, the one end and the stop collar of spring offset, the other end and the canned paragraph of spring offset, the spring cup joints in spacing section, through the improvement, can make the pull rod carry out automatic re-setting, after the pull rod is pulled out, just can remove the application of force to the pull rod, then at folding back wheel subassembly in-process, as long as the pull rod arrives next joint groove department, just can directly carry out the joint.

As an improvement of the utility model, the both ends of connecting axle are equipped with the condom, through the improvement, can protect the both ends of connecting axle, avoid the both ends of connecting axle to receive the damage, influence subsequent dismantlement and installation, also be the protection to the user simultaneously, avoid using the bicycle in-process, the condition of scraping takes place for foot and connecting axle, avoids the foot be injured, and both ends all are equipped with the adapter sleeve and still have and carry out spacing effect to the connecting axle, avoid the phenomenon that axial displacement appears in the connecting axle.

As an improvement of the utility model, the one end fixedly connected with pull ring of joint ring is kept away from to the pull rod, through the improvement, can make the pull rod operated more easily.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the frame and rear wheel bracket mounting structure of the present invention.

Fig. 3 is a schematic view of a partial section of the frame and rear wheel bracket mounting structure of the present invention.

Fig. 4 is another schematic sectional view of the frame and rear wheel bracket mounting structure of the present invention.

Fig. 5 is a schematic view of the structure of the clamping ring of the present invention.

Wherein the reference numerals are: 1. the frame, 1.1, connecting portion, 1.1.1, spacing groove, 1.1.2, folding groove, 1.1.3, the standing groove, 1.1.4, the extension post, 2, the rear wheel support, 2.1, spacing post, 2.2, the cradling piece, 3, the joint ring, 3.1, the joint groove, 3.2, the tooth is protruding, 4, the pull rod, 4.1, the canned paragraph, 4.2, spacing section, 4.3, the application of force section, 5, the connecting axle, 6, the stop collar, 7, the spring, 8, the condom, 9, the pull ring.

Detailed Description

The invention will be further explained with reference to the drawings and the specific embodiments.

The utility model discloses a structure:

as shown in fig. 1-4, a rear wheel assembly folding device comprises a frame 1 and a rear wheel bracket 2, wherein a connecting portion 1.1 is arranged at the end of the frame 1, one end of the rear wheel bracket 2 is rotatably connected to the connecting portion 1.1, a clamping ring 3 is arranged at the rotary connection position of the connecting portion 1.1 and the rear wheel bracket 2, two clamping grooves 3.1 are arranged along the radial direction of the clamping ring 3 in the circumferential direction of the clamping ring 3, the two clamping grooves 3.1 are symmetrically arranged along the center of the clamping ring 3, so that the folding requirement of the rear wheel assembly at 180 degrees can be realized, a pull rod 4 clamped with the clamping grooves 3.1 is arranged on the connecting portion 1.1, a limiting column 2.1 is arranged on the rear wheel bracket 2, threaded holes are arranged at the two ends of the limiting column 2.1, the limiting column 2.1 is fixedly connected to the rear wheel bracket 2 through screws, a limiting groove 1.1.1 matched with the limiting column 2.1 for limiting the rear wheel bracket 2, when the limiting post 2.1 is abutted against the limiting groove 1.1.1, the pull rod 4 is clamped with the clamping groove 3.1, the limiting groove 1.1.1 is arranged on one side of the clamping ring 3, the other side of the clamping ring 3 is provided with a folding groove 1.1.2, the folding groove 1.1.2 and the limiting groove 1.1.1 are symmetrically arranged about the clamping ring 3, the limiting post 2.1 can be abutted against the folding groove 1.1.2 after rotating 180 degrees, the rear wheel bracket 2 comprises two bracket rods 2.2, the two bracket rods 2.2 are respectively arranged on two sides of the connecting part 1.1, the connecting part 1.1 is provided with a first connecting hole, the bracket rod 2.2 is provided with a second connecting hole opposite to the first connecting hole, the two bracket rods 2.2 and the connecting part 1.1 pass through the first connecting hole and the second connecting hole through a connecting shaft 5 to be connected, the clamping ring 3 is fixedly connected on the connecting part 1.1, as shown in figure 5, the two ends of the clamping ring 3 are provided with convex tooth sockets 3, and the connecting part 1.2 is matched with the connecting part 1.2, the clamping ring 3 is fixedly connected on the connecting part 1.1 through the matching of the tooth protrusions 3.2 and the tooth grooves, the bottom of the connecting part 1.1 is provided with a placing groove 1.1.3 for placing the clamping ring 3, the top of the connecting part 1.1 is provided with a through hole for moving the pull rod 4, the position of the through hole is provided with an extension column 1.1.4, the outer surface of the extension column 1.1.4 is in threaded connection with a limit sleeve 6, the limit sleeve 6 is provided with a limit hole, the pull rod 4 comprises a fixed section 4.1, a limit section 4.2 and a force application section 4.3, the fixed section 4.1 is used for clamping with the clamping ring 3, the limit section 4.2 is arranged between the fixed section 4.1 and the force application section 4.3, the diameter of the fixed section 4.1 is larger than that of the limit hole, the diameter of the limit hole is larger than that of the limit section 4.2, a spring 7 is arranged between the limit hole and the fixed section 4.1, one end of the spring 7 is abutted against the fixed section 6, and the other end of the spring 7 is abutted against the fixed, the spring 7 is sleeved on the limiting section 4.2, two ends of the connecting shaft 5 are provided with condoms 8, one end of the pull rod 4, far away from the clamping ring 3, is fixedly connected with a pull ring 9, namely the pull ring 9 is fixedly connected with the force application section 4.3.

In the use, only need pull rod 4 through pull ring 9 pull-up, make pull rod 4 break away from with a joint groove 3.1 of joint ring 3, just can rotate the rear wheel subassembly, after the rear wheel subassembly rotated 180 degrees, spacing post 2.1 offsets with folding groove 1.1.2, pull rod 4 in the effect of spring 7, can with another joint groove 3.1 joint of joint ring 3, just accomplished the folding work of bicycle rear wheel subassembly. Reverse operation allows the bicycle to return from the rear wheel assembly folded condition to the use condition.

Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A rear wheel subassembly folding device which characterized in that: including frame (1) and rear wheel support (2), the end of frame (1) is equipped with connecting portion (1.1), the one end of rear wheel support (2) is rotated and is connected on connecting portion (1.1), connecting portion (1.1) is equipped with joint ring (3) with the rotation junction of rear wheel support (2), be equipped with a plurality of joint grooves (3.1) of radially setting up along joint ring (3) in the circumference of joint ring (3), be equipped with pull rod (4) of carrying out the joint with joint groove (3.1) on connecting portion (1.1).

2. A rear wheel assembly folding apparatus as claimed in claim 1, wherein: be equipped with spacing post (2.1) on rear wheel support (2), be equipped with on connecting portion (1.1) and be used for carrying out spacing groove (1.1.1) to rear wheel support (2) with spacing post (2.1) cooperation, when spacing post (2.1) offseted with spacing groove (1.1.1), pull rod (4) and joint groove (3.1) joint.

3. A rear wheel assembly folding apparatus as claimed in claim 2, wherein: one side of joint ring (3) is located in spacing groove (1.1.1), the opposite side of joint ring (3) is equipped with folding groove (1.1.2), folding groove (1.1.2) and spacing groove (1.1.1) set up about joint ring (3) symmetry.

4. A rear wheel assembly folding apparatus as claimed in claim 1, wherein: rear wheel support (2) include two cradling pieces (2.2), two the both sides of connecting portion (1.1) are located respectively to cradling piece (2.2), be equipped with first connecting hole on connecting portion (1.1), be equipped with the second connecting hole relative with first connecting hole on cradling piece (2.2), two cradling piece (2.2) pass first connecting hole and second connecting hole through connecting axle (5) with connecting portion (1.1) and are connected, joint ring (3) fixed connection is on connecting portion (1.1).

5. A rear wheel assembly folding apparatus as claimed in claim 4, wherein: the bottom of connecting portion (1.1) is equipped with standing groove (1.1.3) that supply joint ring (3) to place, the top of connecting portion (1.1) is equipped with the through-hole that supplies pull rod (4) to remove.

6. A rear wheel assembly folding apparatus as claimed in claim 5, wherein: an extension column (1.1.4) is arranged at the position of the through hole.

7. A rear wheel assembly folding apparatus as claimed in claim 6, wherein: extend on the surface of post (1.1.4) threaded connection a stop collar (6), stop collar (6) are equipped with spacing hole, pull rod (4) are including canned paragraph (4.1), spacing section (4.2) and application of force section (4.3), canned paragraph (4.1) are used for with joint ring (3) joint, between canned paragraph (4.1) and application of force section (4.3) are located in spacing section (4.2), the diameter of canned paragraph (4.1) is greater than the aperture in spacing hole, the aperture in spacing hole is greater than the diameter in spacing section (4.2).

8. A rear wheel assembly folding apparatus as claimed in claim 7, wherein: a spring (7) is arranged between the limiting hole and the fixed section (4.1), one end of the spring (7) is abutted against the limiting sleeve (6), the other end of the spring (7) is abutted against the fixed section (4.1), and the spring (7) is sleeved on the limiting section (4.2).

9. A rear wheel assembly folding apparatus as claimed in claim 4, wherein: and two ends of the connecting shaft (5) are provided with condoms (8).

10. A rear wheel assembly folding apparatus as claimed in claim 1, wherein: one end of the pull rod (4) far away from the clamping ring (3) is fixedly connected with a pull ring (9).