WO2016206249A1

WO2016206249A1 - Self-locking and unlocking device for foldable joint of foldable vehicle

Info

Publication number: WO2016206249A1
Application number: PCT/CN2015/092274
Authority: WO
Inventors: 朱子毅
Original assignee: 朱子毅
Priority date: 2015-06-26
Filing date: 2015-10-20
Publication date: 2016-12-29
Also published as: CN104890789A

Abstract

A self-locking and unlocking device for a foldable joint of a foldable vehicle. A ratchet (3) is disposed between a foldable shaft (1) and a foldable shaft sleeve (2). Locking teeth (5) fixed by using a fixing spring (4) passes through the shaft sleeve (2) and is inserted into the ratchet (3). A pin groove (7) is formed in a long rod portion of the locking teeth (5). A latch pin positioning sheet (6) controlled by an operation end (12) matches the pin groove (7). The foldable shaft (1) is disposed at a chassis (15). The foldable shaft sleeve (2) is connected to a rear support (14). The device can lock and unlock the foldable joint.

Description

Self-locking and unlocking device for folding joint of folding bicycle

Technical field

[0001] The present invention relates to the field of lock devices for folding accessories, and more particularly to a self-locking and unlocking device for a folding joint of a folding vehicle.

Background technique

[0002] With the changes in modern travel habits, folding vehicles are increasingly popular with people for their small size, light weight, and portability. Folding vehicles have many functions, many accessories, and complex design. In order to achieve the desired folding effect, cumbersome construction and multiple operation steps are often taken. In the prior art, the folding mechanism and the locking and unlocking mechanism belong to different structural modules. Firstly, the folding mechanism is designed, and then the locking mechanism is added on the basis of the folding mechanism, which is contrary to the original intention of the folding product to make the finished machine bloated. In addition, the convenience of folding the folding vehicle is also very high, and the multiple operation steps are too cumbersome, which causes the operator to lose patience and reduce the fit of the product and the market; in addition, whether it is folded or unfolded A high degree of locking firmness is required to ensure safety.

technical problem

[0003] Considering the requirement of folding and folding locking integration, there is a need in the current market for a "stack-integrated" folding traffic tool. The technical problem to be solved by this patent is: Design a self-locking and unlocking device for the folding joint of the folding bicycle to realize the locking and unlocking of the folding joint.

Problem solution

Technical solution

[0004] The technical solution adopted by the patent to solve the above technical problem is: designing a self-locking and unlocking device for a folding joint of a folding bicycle, characterized in that a ratchet wheel is arranged between the folding shaft and the folding sleeve, and fixed by a fixed spring. The locking tooth is inserted into the ratchet through the sleeve, the long rod portion of the locking tooth is provided with a pin groove, and the pin positioning piece controlled by the operating end is matched with the shape of the pin groove, and the pin positioning piece can be inserted or withdrawn from the pin. a slot, a folding shaft is disposed on the chassis, the folding sleeve is connected to the rear bracket, the locking tooth includes a long rod neck and an insertion end, and correspondingly, a ring spring is disposed on the neck of the long rod, and the depth distance of the pin slot limits the pinning Inserting stroke of the positioning piece, the spring is provided with a bolt for adjusting the elasticity, and one end of the locking tooth is inserted into the hollow bolt, the hollow bolt and the elastic The reciprocal connection, the distance between the locking tooth and the bottom of the hollow bolt, the spring adjusts the elastic movable stroke, the operating end is connected with the operating handle, the operating handle is connected with the pin positioning piece, and the neck of the operating handle is provided with a damping sealing cover, The steering end extends beyond the damping seal.

Advantageous effects of the invention

Beneficial effect

[0005] The patent has the beneficial effects that: the locking and unlocking of the folded joint can be achieved by applying the invention. The utility model has the advantages of simple structure, integrated stacking, folding into position, operation of the operating end to achieve locking, positioning in position, re-operation of the operating end to achieve locking, without the need to additionally design a locking device, high structural strength, good locking stability, greatly reducing the operating accessories and Program, practical. The spring is provided with a bolt that adjusts the tension. When the tension of the upper bolt/spring is increased, the spring force of the bolt is loosened, thereby controlling the resistance of the locking tooth to the ratchet. The neck of the handle is provided with a damping sealing cover, and the operating end protrudes from the damping sealing cover. The sealing cover can be dustproof, and the operating end can be prevented from swinging, and the operating end can be fixed. One end of the locking tooth is inserted into the hollow bolt, and the inner hole of the hollow bolt functions as a positioning of the locking tooth, and the inner hole has a stroke and does not hinder the adjustment of the bolt, and the design is ingenious. Brief description of the drawing

DRAWINGS

1 is a schematic view of the structure of the present invention

2 is a schematic diagram of a lock tooth and a ratchet

Figure 3 is a schematic view of the structure of the damper cover

4 is a schematic diagram of a structure of a steering end

[0010] FIG. 5 is a schematic diagram of a lock tooth structure

6 is a schematic view of the structure of the rear bracket and the chassis;

[0012] FIG. 7 is a schematic view of a hollow bolt mating structure

8 is a schematic view of a ratchet structure

[0014] In the drawing: 1 folding shaft 2 folding sleeve 3 ratchet 4 spring 5 locking teeth 6 hit pin positioning piece 7 pin slot 8 long rod neck 9 insertion end 10 operating handle 11 damping sealing cover 12 steering end 13 hollow bolt 14 Rear bracket 15 chassis. BEST MODE FOR CARRYING OUT THE INVENTION

BEST MODE FOR CARRYING OUT THE INVENTION

[0015] As shown in the figure, a self-locking and unlocking device for a folding joint of a folding bicycle, a ratchet wheel 3 is disposed between the folding shaft 1 and the folding sleeve 2, and a locking tooth 5 fixed by a fixing spring 4 is inserted into the ratchet through the sleeve. 3. When the ratchet rotates, the crest of each ratchet ratchet will force the lock tooth 5 to move backwards, and the tooth concave portion of each ratchet tooth will move to the front top under the action of the spring 4, and is tightly coupled with the ratchet wheel 3, The locking toothed long rod portion is provided with a pin groove 7, and the contact pin positioning piece 6 controlled by the operating end is matched with the pin groove shape, and the pin pin positioning piece 6 can be inserted into or withdrawn from the pin groove 7, and the folding shaft 1 is set In the chassis 15, the folding sleeve 2 is connected to the rear bracket 14, the locking tooth 5 includes a long rod neck 8 and an insertion end 9, and a corresponding annular spring 4 is disposed on the long rod neck 8, and the inside of the pin groove 7 is provided. The depth distance limits the insertion stroke of the pin positioning piece 6, the spring 4 is provided with a bolt for adjusting the tension, the locking tooth 5 - the end is inserted into the hollow bolt 13, the hollow bolt 13 is connected with the spring, the locking tooth 5 and the hollow bolt 13 The distance at the bottom of the hole limits the spring to adjust the elastic activity Cheng. The operating end 12 is connected to the operating handle 10, and the operating handle 10 is connected to the pin fixing plate. The neck of the operating handle 10 is provided with a damping sealing cover 11, and its operating end 12 extends beyond the damping sealing cover 11.

[0016] In the unfolded state 吋, the locking teeth 5 are inserted between the teeth of the ratchet 3, the contact pin positioning piece 6 is inserted into the pin groove 7 to lock the locking teeth 5, the locking teeth 5 cannot move backward, the ratchet 3 is locked, and the corresponding rear bracket 14 is locked. It is also locked with the chassis 15, and the driver can ride on the vehicle. When the storage raft is required to be folded, the steering end 12 is rotated, the impact pin is triggered, the contact pin positioning piece 6 is pulled out, the pin locating piece 6 is separated from the pin groove 7, and the lock tooth 5 is correspondingly unlocked, and the yoke is folded after the yoke is folded. The ratcheting force overcomes the elastic force of the spring provided by the locking teeth 5, and the locking teeth 5 sequentially slide over the respective teeth on the ratchet wheel 3. When folded into position, the steering end 12 is rotated again, and the pinning pin is triggered again to make the pinning positioning piece 6 Falling into the original position of the pin groove 7, the locking tooth insertion end cannot be retracted, the teeth inserted into the ratchet wheel 3 are locked, and the rear bracket 14 and the chassis 15 are locked and cannot be smashed.

[0017] From the folded state, the steering end 12 is rotated again, and the pin positioning piece 7 is controlled to pull out the pin groove 7. After that, the rear bracket ₁₄ and the chassis 15 can be used for the expansion movement, and the same position is rotated. 12 causes the contact pin positioning piece 6 to fall into the pin groove 7 position to lock the rear bracket 14 and the chassis 15.

[0018] The locking joint can be locked and unlocked, the structure is simple, the stacking is integrated, the folding operation is performed in the position, the operating terminal 12 is locked, the positioning is performed, and the operating end 12 is operated again to realize the locking, and the locking device is not required to be separately designed. High strength, good locking stability, greatly reduced operating accessories and procedures, practical Strong. The spring is provided with a bolt for adjusting the tension. When the spring tension of the tightening bolt 吋 spring is increased, the spring force of the loosening bolt 吋 spring is reduced, thereby controlling the resistance of the locking tooth 5 to the ratchet wheel 3 . The neck of the handle 10 is provided with a damping sealing cover 11 whose guiding end 12 extends beyond the damping sealing cover 11. The sealing cover can be dustproof, and can prevent the steering end 12 from swinging, and functions as a fixed operating end 12. The locking tooth 5 - end is inserted into the hollow bolt 13 , and the inner hole of the hollow bolt 13 functions to position the locking tooth 5 , and the inner hole has a stroke without hindering the adjustment of the bolt, and the design is ingenious.

[0019] The invention has simple structure, novel design, low cost and high efficiency, and is suitable for mass production and promotion.

[0020] It should be noted that the above embodiments are merely preferred embodiments of the present invention, and those skilled in the art, in accordance with the working principle of the present invention, all equivalent or similar replacements are included. The scope of protection of the present invention.

Embodiments of the invention

[0021] The description paragraphs of the embodiments of the present invention are entered here.

Industrial applicability

[0022] Enter the paragraph of industrial applicability description here.

Sequence table free content

[0023] Type the sequence table free content description paragraph here.

Claims

Claim

[Claim 1] A self-locking and unlocking device for a folding joint of a folding bicycle, wherein a ratchet wheel is disposed between the folding shaft and the folding sleeve, and a ratchet is inserted through the sleeve by using a locking spring fixed locking tooth, the lock The toothed long rod portion is provided with a pin groove, and the contact pin positioning piece controlled by the operating end is matched with the pin groove shape, the pin pin positioning piece can be inserted into or withdrawn from the pin groove, the folding shaft is disposed on the chassis, and the folding sleeve is connected support.

[Claim 2] A self-locking and unlocking device for a folding joint of a folding bicycle according to claim 1, wherein: the locking tooth includes a long rod neck and an insertion end, and the corresponding length is in the neck of the rod Set the ring spring.

[Claim 3] A self-locking and unlocking device for a folding joint of a folding bicycle according to claim 1 or 2, wherein: the depth of the pin groove limits the insertion stroke of the pin positioning piece.

[Claim 4] A self-locking and unlocking device for a folding joint of a folding bicycle according to claim 1, wherein the spring is provided with a bolt that adjusts the tension.

[Claim 5] The self-locking and unlocking device for a folding joint of a folding bicycle according to claim 1, wherein: one end of the locking tooth is inserted into a hollow bolt, and the hollow bolt is connected with a spring, the locking tooth and the hollow bolt The distance at the bottom of the hole limits the spring to adjust the elastic travel.

[Claim 6] A self-locking and unlocking device for a folding joint of a folding bicycle according to claim 1, wherein the operating end is connected to a handle, and the handle is connected to the pin positioning piece.

[Claim 7] The self-locking and unlocking device for a folding joint of a folding bicycle according to claim 6, wherein: the neck of the handle is provided with a damping sealing cover, and the operating end thereof protrudes beyond the damping sealing cover .