CN202156502U

CN202156502U - Quick connector for folding bicycle

Info

Publication number: CN202156502U
Application number: CN2011201752750U
Authority: CN
Inventors: 魏强
Original assignee: Tianjin Feike Electric Vehicle Coltd
Current assignee: TIANJIN XIAODAO ELECTRIC TECHNOLOGY CO., LTD.
Priority date: 2011-05-27
Filing date: 2011-05-27
Publication date: 2012-03-07
Anticipated expiration: 2021-05-27

Abstract

The utility model discloses a quick connector for a folding bicycle. The quick connector comprises a connection head and a combined lock head composed of a lock sleeve and a lock cylinder; threads are formed at one shaft end of the connection head; a lap of groove is formed on the intermediate shaft section of the connection head; the lock sleeve comprises an outer ring and an inner ring; a plurality of radial through holes are formed at one end of the inner ring; roll balls are arranged in the through holes; a nut structure is arranged at the other end of the inner ring; a pressure spring and a baffle ball structure are arranged between the inner ring and the outer ring; the two ends of the pressure spring are in contact with shaft shoulders on the inner and the outer rings; the lock cylinder comprises a ball shift ring, a telescopic spring and a connecting sleeve; a baffle ring is arranged between the connecting sleeve and the ball shift ring; the baffle ring is in clearance fit with the ball shift ring and is in interference fit with the connecting sleeve; and the two ends of the telescopic spring are in contact with shaft shoulders on the ball shift ring and the baffle ring. Through the quick connector, when a bicycle body is folded, fast buckling of the bicycle body is realized, and the fixation is firm; and the possible dangerous conditions such as the unfolding, the inclining, even the falling of the bicycle body can be avoided, and the bicycle body can be directly pushed, so as to save physical power.

Description

A kind of folding bicycle is used quick coupling

Technical field

The utility model relates to a kind of folding bicycle has anchor fitting, relates in particular to the device of stablizing and can carrying out after a kind of folding bicycle folds.

Background technology

At present, along with the enhancing of people's environmental consciousness, more and more trend towards energy-saving and environmental protection and convenient as the bicycle product of people's walking-replacing tool; Existing folding electric bicycle all can satisfy the customer to the demand aspect its function of riding, face shaping and the color in design, folding bicycle also has is convenient to deposit, saves space, advantage such as easy to carry, launches and fix promptly rideable; Not the time spent, be convenient to deposit, carry and transport after folding, though existing folding bicycle volume after folding is urinated in carrying; Because the car body after folding can't fixation, state labile, the especially women who therefore in handling process, tends to fold and teenager are owing to not possessing enough strong strength; Car body can launch at any time, crooked or drop, the dangerous possibility that happens occasionally has been brought heavy weight pressure and physical demands at heart to the user; Therefore; Usually to tie up fixingly with bandage, not only bring the trouble on using, and kept away the generation of unavoidable danger.

The utility model content

To above-mentioned prior art, the utility model provides a kind of folding bicycle to use quick coupling, and the bicycle after can guaranteeing to fold connects in the suitable position of car body fast, makes its fixation.After installing the utility model quick coupling in place; Make the line of centers that folds two wheels after closing up on a line; Therefore; Not only can in the process of carrying, avoid car body owing to fixing insecure takes place car body launch, outer oblique even drop etc. and can cause the situation of danger, but also can carry out on the ground, thereby saved user's muscle power greatly.

In order to solve the problems of the technologies described above; A kind of folding bicycle of the utility model with the technical scheme that quick coupling is achieved is: comprise connector and the Assembled lock that is formed by a lock tube and a lock core; One axle head of said connector is provided with screw thread; Another axle head of said connector is a plug, and the middle shaft part of said connector is provided with a circle groove; Said lock tube comprises outer shroud and interior ring; An end of ring is provided with a plurality of radial direction through hole in said; Be provided with ball in each radial direction through hole; The other end of ring is a nut structure in said, is provided with pressure spring and block bead structure between ring and the said outer shroud in said, and the two ends of said pressure spring and said outer shroud contact with the shaft shoulder on said interior the ring; Said lock core comprises dials pearl ring, coil tension spring and adapter sleeve; Be provided with baffle ring between said adapter sleeve and group pearl ring; Said baffle ring and said group of pearl ring are free-running fit; Said baffle ring and said adapter sleeve are interference fit, and the two ends of said coil tension spring and said group of pearl ring contact with the shaft shoulder on the said baffle ring; The plug of said connector cooperates with the internal orifice of said group of pearl ring;

Adapter sleeve in the said lock core is connected with nut in the said lock tube.

Compared with prior art, the beneficial effect of the utility model is:

Because the utility model is to rely on the outer shroud of stirring in the lock tube that ball is dialled in the groove, thereby with lock core and firm the linking together of connector; When needs are opened joint, through stirring outer shroud drive group pearl ring once more ball is kept off in the radial hole at place, make ball disengaging groove, thereby connector is separated with lock core.The folding bicycle that can guarantee to be equipped with the utility model quick coupling like this closes up the back fixation in that car body is folding, and the car body after fixing can avoid in the process of carrying taking place that car body launches, outer oblique even danger situation such as drop.When needs launch car body also is very easily.After installing the utility model quick coupling in place, make the line of centers that folds two wheels after closing up on a line, can carry out on the ground, save user's muscle power greatly.

Description of drawings

Fig. 1 is the structural representation of a kind of folding bicycle of the utility model with connector in the quick coupling;

Fig. 2 is the structural representation of a kind of folding bicycle of the utility model with Assembled lock in the quick coupling;

Fig. 3 is the structural representation of lock tube shown in Fig. 2;

Fig. 4 is the structural representation of the utility model lock core;

Fig. 5 is the utility model quick coupling butt finger lock view;

Fig. 6 is the utility model quick coupling released state scheme drawing.

Among the figure:

10---connector 20---lock tube 30---lock cores

11---six prismatic surfaces 12---screw thread 14---grooves

15---plug 21---outer shroud 22---balls

23,34---the interior rings of collar 24---back-up ring 25---

26---pressure spring 27---nut 31---group pearl rings

32---coil tension spring 33---adapter sleeve 35---baffle rings.

The specific embodiment

Below in conjunction with the specific embodiment the utility model is done to describe in further detail.

Like Fig. 5 and shown in Figure 6, a kind of folding bicycle of the utility model is used quick coupling, comprises connector 10 and the Assembled lock that is formed by a lock tube 20 and a lock core 30.

As shown in Figure 1; One axle head of said connector 10 is provided with screw thread 12, and another axle head of said connector 10 is a plug 15, and the middle shaft part of said connector 10 is provided with a circle groove 14; The outside face of said connector 10 is provided with the plane that is used to install; As shown in Figure 1, for the ease of being used, preferably it is designed to one or six prismatic surfaces 11 with plank.

As shown in Figure 3; Said lock tube 20 comprises outer shroud 21 and interior ring 25, and an end of said interior ring 25 is provided with a plurality of radial direction through hole, is provided with ball 22 in each radial direction through hole; The other end of ring 25 is nut 27 structures in said; Be provided with pressure spring 26 and block bead structure in said between ring 25 and the said outer shroud 21, the two ends of said pressure spring 26 contact with the said interior shaft shoulder that encircles on 25 with said outer shroud 21, and the outside face of the outer shroud 21 of said lock tube 20 is provided with many circle grooves or annular knurl structure.

As shown in Figure 4; Said lock core 30 comprises dials pearl ring 31, coil tension spring 32 and adapter sleeve 33; Be provided with baffle ring 35 between said adapter sleeve 33 and group pearl ring 31, said baffle ring 35 is a free-running fit with said group of pearl ring 31, and said baffle ring 35 is an interference fit with said adapter sleeve 33; The two ends of said coil tension spring 32 and said group of pearl ring 31 contact with the shaft shoulder on the said baffle ring 35, and the outer end of the adapter sleeve 33 of said lock core 30 is provided with connecting thread.

As shown in Figure 2, the adapter sleeve 33 in the said lock core 30 is connected to form an Assembled lock with the nut 27 in the said lock tube 20.Like Fig. 5 and shown in Figure 6, the plug 15 of said connector 10 cooperates with the internal orifice of said group of pearl ring 31.

The utility model folding bicycle with the installation of quick coupling is: at first; Nut 27 through in hickey and the lock tube 20 on lock core 30 adapter sleeves 33 connects; Form an Assembled lock, and this Assembled lock is fixed on the folding bicycle through the connecting thread of said lock core 30 upper joint sleeves 33 outer ends; Through the screw thread on connector 10 1 ends connector 10 is installed on the folding bicycle on the cooresponding position that (so-called correspondence position is meant: involutory position on folding two wheel stands that close up the back bicycle).

The utility model folding bicycle with quick coupling when connector 10 separates with Assembled lock; Position relation in the Assembled lock between relevant other parts is like Fig. 2 and shown in Figure 6, and wherein, coil tension spring 32 is extended configuration naturally; Pressure spring 26 is a compressive state; Step surface in outer shroud 21 endoporus gets out of the way ball 22 just, dials pearl ring 31 and props up ball 22, and this moment, ball 22 was deviate from the groove 14 of connector 10 outside faces.Owing on lock tube 20, be positioned at ball 22 1 sides and be provided with the block bead structure, this block bead structure by a collar 23 of ring 25 terminations in being arranged on and be arranged on collar 23 and outer shroud 21 between back-up ring 24 constitute.This block bead structure both can guarantee outer shroud 22 be contained on the ring 25, can avoid when stirring outer shroud 22 might the coming off of ball 22 again.

During car body after needing fixed fold to close up, connector 10 is inserted in the Assembled locks, at this moment, the plug 15 of said connector 10 and said group of pearl encircle 31 internal orifice and cooperate grafting; Of Fig. 6, after further exerting oneself, as shown in Figure 5; The plug 15 of said connector 10 withstands to dial pearl ring 31 and promote to dial pearl ring 31 and moves axially, because said baffle ring 35 is a free-running fit with said group of pearl ring 31, said baffle ring 35 is an interference fit with said adapter sleeve 33; Therefore, after group pearl ring 31 moves certain distance, the shaft shoulder compression coil tension spring 32 on it; Meanwhile, ball 22 is embedded in the groove 14, under the effect of pressure spring 26 tension force; Promotion outer shroud 21 moves and makes the step surfaces in the outer shroud 21 withstand ball 22, and at this moment, connector 10 firmly is connected with Assembled lock.

When needs launch car body, as shown in Figure 5, stir outer shroud 21 after; As shown in Figure 6, outer shroud 21 move compressed pressure spring 26; Dial pearl ring 31 and under the effect of coil tension spring 32 (at this moment, coil tension spring 32 is being stretched out under original tension force effect) tension force, move to the ball direction, the step surface in outer shroud 21 endoporus gets out of the way ball 22 just; Dial pearl ring 31 and prop up ball 22, this moment, ball 22 was deviate from from the groove 14 of connector 10 outside faces, thereby connector is separated with lock core.Because the rear portion (being the right part among Fig. 6) dialling pearl ring 31 is provided with the collar 34 that is used for limiting baffle ring 35 end positions, therefore, after stirring outer shroud 21, dial pearl ring 31 and both can prop up ball 22, baffle ring 35 dislocation can not take place again.

To sum up; The folding bicycle that the utility model quick coupling is installed folds at car body and closes up the back fixation; Car body after fixing can avoid in the process of carrying taking place that car body launches, tiltedly outer even danger situation such as drop, and when needs expansion car body, also is very easily.And can directly carry out, save user's muscle power.

Although top combination figure is described the utility model; But the utility model is not limited to the above-mentioned specific embodiment, and the above-mentioned specific embodiment only is schematically, rather than restrictive; Those of ordinary skill in the art is under the enlightenment of the utility model; Under the situation that does not break away from the utility model aim, can also make a lot of distortion, these all belong within the protection of the utility model.

Claims

1. a folding bicycle is used quick coupling, comprises connector (10) and the Assembled lock that is formed by a lock tube (20) and a lock core (30), it is characterized in that:

One axle head of said connector (10) is provided with screw thread, and another axle head of said connector (10) is plug (15), and the middle shaft part of said connector (10) is provided with a circle groove (14);

Said lock tube (20) comprises outer shroud (21) and interior ring (25); An end of ring (25) is provided with a plurality of radial direction through hole in said; Be provided with ball (22) in each radial direction through hole; The other end of said interior ring (25) is nut (a 27) structure, is provided with pressure spring (26) and block bead structure between said interior ring (25) and the said outer shroud (21), and the two ends of said pressure spring (26) contact with the said interior shaft shoulder that encircles on (25) with said outer shroud (21);

Said lock core (30) comprises dials pearl ring (31), coil tension spring (32) and adapter sleeve (33); Be provided with baffle ring (35) between said adapter sleeve (33) and group pearl ring (31); Said baffle ring (35) is a free-running fit with said group of pearl ring (31); Said baffle ring (35) and said adapter sleeve (33) are interference fit, and the two ends of said coil tension spring (32) and said group of pearl encircle (31) and contact with the shaft shoulder on the said baffle ring (35);

The plug (15) of said connector (10) cooperates with the internal orifice that said group of pearl encircles (31);

Adapter sleeve (33) in the said lock core (30) is connected with nut (27) in the said lock tube (20).

2. a kind of folding bicycle according to claim 1 is used quick coupling, it is characterized in that: the outside face of said connector (10) is provided with the plane that is used to install.

3. a kind of folding bicycle according to claim 1 is used quick coupling, it is characterized in that: the outside face of the outer shroud (21) of said lock tube (20) is provided with many circle grooves or annular knurl structure.

4. a kind of folding bicycle according to claim 1 is used quick coupling, it is characterized in that: the outer end of the adapter sleeve (33) of said lock core (30) is provided with connecting thread.