CN202144288U

CN202144288U - Improved folding connector

Info

Publication number: CN202144288U
Application number: CN2011201793229U
Authority: CN
Inventors: 吴建华; 韩德玮; 贺新星
Original assignee: Dahon Technologies Ltd
Current assignee: DAHON INTELLIGENCE PROPERTY CO., LTD.
Priority date: 2011-04-22
Filing date: 2011-05-24
Publication date: 2012-02-15
Anticipated expiration: 2021-05-24

Abstract

The utility model discloses an improved folding connector which is used on a folding bicycle or a folding electric vehicle. The improved folding connector comprises a first folding body, a second folding body, a hinge shaft, an elastic element, a locking block and a driving device driving the locking block, wherein the first folding body is hinged with the second folding body through the hinge shaft; the locking block can compress the first folding body and the second folding body; a groove is formed on the second folding body; the locking block is provided with a bulge matched with the groove; and the locking block can rotate relative to the second folding body. The improved folding connector has the advantages of convenience in operation, low cost, simple structure, safety, reliability and the like.

Description

A kind of folding joint of improvement

Technical field

The utility model relates to a kind of folding joint that is mainly used in a kind of improvement of folding bicycle, electric motor bicycle with folding, particularly a kind of folding joint that is applied to a kind of improvement on folding stand, the folding vertical tube.

Background technology

Multiple folding device appears now on the market; Chinese patent document CN200720119449.5 discloses a kind of bicycle folding mechanism; The quick detach group comprises handle and the screw rod that articulates with handle; Handle one side is provided with the cambered surface and the through hole of eccentric state, and the screw rod other end passes latch segment, spring, screw togather with nut after going up folder, and the eccentric force of quick detach group makes the 3rd oblique card face of latch segment powerfully embed and support the second oblique card face that descend folder admittedly, upward the first oblique card face of folder is fixed upper and lower folder and utilize; This folder in use needs the rotary handle of wide-angle, can open or lock folder; Chinese patent document 200720053664.X discloses a kind of folding joint and latching device thereof of improvement; Comprise first folded formation, second folded formation, hinge, latch segment, pipe fitting and locking operation parts; The corresponding position of first folded formation and the sealed place of second folded formation is provided with the latch segment of being with the inclined-plane, and an end of latch segment and second folded formation are articulated in second folded formation outside through axle; First folded formation is provided with in the relevant position and locks the inclined-plane that piece compresses; Operating unit and elastic body drive latch segment with first folded formation with the locking of second folded formation or unclamp, eccentric handle places the stage casing of latch segment, can lock or unclamp folder so eccentric handle is rotated less angle; But the structure of second folded formation and latch segment is comparatively complicated, and manufacturing cost is high.

The utility model content

The utility model provides a kind of easy to operate, cheap, simple in structure, safe and reliable folding joint to the problems referred to above.

The utility model is achieved in that

A kind of folding joint of improvement; Comprise that first folded formation, second folded formation, hinge, elastic component, latch segment and drive the actuating device of latch segment; First folded formation and second folded formation are hinged through hinge, and said latch segment can compress first folded formation and second folded formation, and said second folded formation is provided with groove; Said latch segment is provided with the projection with said groove fit, and the latch segment and second folded formation can relatively rotate.

Said second folded formation is provided with latch segment is carried out spacing position limiting structure.

Said position limiting structure is the stop hook on second folded formation.

Said position limiting structure is the limited screw that is installed on second folded formation, and said limited screw withstands the end that latch segment is provided with projection.

Said latch segment is provided with position-limited trough, and said limited screw one end is placed in the position-limited trough.

The medial surface of said latch segment tilts to second folded formation, and perhaps the medial surface of latch segment is provided with bottom surface bevelled deep gouge, and said deep gouge bottom surface tilts to the second folded formation direction, and said elastic component is placed in the deep gouge.

Said actuating device is to comprise handle and the pull bar of being with eccentric cam, and said pull bar one end is fixed on the handle, and the other end passes latch segment, elastic component is fixed on second folded formation.

Groove on said second folded formation is smooth circular arc.

Pull bar is fixed on second folded formation through jam nut.

Said second folded formation is provided with tapped bore, and pull bar is threaded with said second folded formation.

The utility model actuating device drives among a small circle, can make latch segment locking or throw off first folded formation, the folding joint more convenient operation of this improvement, quick; Simple in structure, cheap, latch segment can compress first and second folded formation to the inside; Be difficult for getting loose, safe in utilization, reliable.

Description of drawings

Fig. 1 is the exploded view of the folding joint of the utility model embodiment one improvement;

Fig. 2 is the cutaway view of the folding joint of the utility model embodiment one improvement;

Fig. 3 is the cutaway view of the utility model embodiment one latch segment;

Fig. 4 is the block diagram of the utility model embodiment one latch segment;

Fig. 5 is the cutaway view of the utility model embodiment two latch segments;

Fig. 6 is the block diagram of the utility model embodiment two latch segments;

Cutaway view when Fig. 7 is the folding joint locking of the utility model embodiment three improvement;

Fig. 8 is the cutaway view of the folding joint of the utility model embodiment three improvement when unclamping;

Fig. 9 is the cutaway view of the folding joint of the utility model embodiment four improvement.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is further specified.

Embodiment one, like Fig. 1, shown in 2, and a kind of folding joint of improvement; Comprise first folded formation 1, second folded formation 2, hinge 3, elastic component 4, latch segment 5 and drive the actuating device of latch segment 5, first folded formation, 1 one sides and second folded formation, 2 one sides are hinged through hinge 3, and second folded formation, 2 middle parts are provided with block structure 14; Block structure 14 is provided with tapped bore; Second folded formation is provided with groove 10, and groove 10 inboards are smooth circular-arc, and said latch segment 5 one ends are placed in the groove 10; Said latch segment 5 is provided with projection 11; Its shape cooperates with the circular-arc inboard of said groove 10, and the end that latch segment 5 can be arranged with projection 11 rotates, and latch segment 5 middle parts are provided with through hole.

Said actuating device can be made as eccentric structure; Said eccentric structure comprises the handle 8 and pull bar 6 of being with eccentric cam; Pull bar 6 two ends are provided with screw thread; The tapped bore of block structure 14 is connected on the through hole, elastic component 4 that pull bar 6 passes latch segment 5 and second folded formation, and the other end of pull bar 6 is connected on the eccentric cam of handle 8 through pivot pin.

The medial surface 17 of said latch segment 5 is vertical face, and like Fig. 3, shown in Figure 4, the folding joint of the utility model improvement is when locking; Pull bar 6 is vertical with medial surface 17, and medial surface 17 is provided with bottom surface bevelled deep gouge 15, and said deep gouge 15 bottom surfaces tilt to second folded formation; Said elastic component 4 is placed in the deep gouge 15; The elastic force of 4 pairs of latch segments 5 of elastic component is perpendicular to deep gouge 15 bottom surfaces, and then latch segment 5 has the trend of rotating around projection 11, and pull bar 6 is positioned at the middle part of latch segment 5; Then the miles of relative movement of pull bar 6 breaks away from less than latch segment 5 or the miles of relative movement when locking first folded formation, and actuating device unclamps more easily or locks folding joint.

Elastic component 4 can be made as spring or other elastic element.

Embodiment two, and like Fig. 5, shown in Figure 6, present embodiment and embodiment one structure difference are; The medial surface 17 of said latch segment 5 tilts to second folded formation; The folding joint of the utility model improvement when locking, pull bar 6 and medial surface 17 out of plumb, the elastic force of 4 pairs of latch segments 5 of elastic component is perpendicular to medial surface 17; Then latch segment 5 has the trend of rotating around projection 11; Pull bar 6 is positioned at the middle part of latch segment 5, and then the miles of relative movement of pull bar 6 breaks away from less than latch segment 5 or the miles of relative movement when locking first folded formation, and actuating device unclamps more easily or locks folding joint.

Embodiment three, and like Fig. 7, shown in Figure 8, the difference of present embodiment and embodiment one is:

Latch segment 5 is not established bottom surface bevelled deep gouge.

Second folded formation 2 is provided with position limiting structure, and position limiting structure withstands latch segment 5, prevents that the end that latch segment 5 is provided with projection 11 from skidding off from groove 10, but can relatively rotate between the latch segment 5 and second folded formation 2.Said latch segment 5 is provided with position-limited trough 12.

Said position limiting structure can be arranged to set screw 9, in the second folded formation relevant position knock hole is set, and set screw 9 passes knock hole and fixes, and set screw 9 one ends stretch out knock hole and are placed in the position-limited trough 12 of latch segment 5.

Second folded formation, 2 block structures are provided with through hole, and pull bar 6 passes the through hole and captive nut 7 lockings of latch segment 5, elastic component 4, second folded formation, 2 block structures respectively.

Other structure is identical with first embodiment.

Unclamp or lock in the process of foldable structure; Latch segment 5 is provided with an end non-displacement of projection 11; Pull bar 6 is positioned at the middle part of latch segment 5; When turning handle 8, then the miles of relative movement of pull bar 6 breaks away from less than the other end of latch segment 5 or the miles of relative movement when locking first folded formation, and actuating device unclamps more easily or locks folding joint.

Embodiment four, and is as shown in Figure 9, and the position limiting structure among the embodiment three can use other structure to replace; The rear side of second folded formation, 2 upper grooves 10 is provided with stop hook 16, utilize stop hook 16 to withstand the sidepiece of latch segment 5 and latch segment 5 is carried out spacing, to the different structure of the latch segment 5 and second folded formation; Can load onto latch segment 5 earlier; Back installing pull bar 6, perhaps the groove of second folded formation is made as groove, and promptly the projection 11 of latch segment 5 is packed into from the sidepiece of second folded formation 2.

In the foregoing description; For the folding joint that makes improvement more reliable; Latch segment 5, first folded formation 1 and second folded formation, 2 relevant positions are provided with the inclined-plane; The inclined-plane of first folded formation 1 and second folded formation 2 is outside, and the inclined-plane of latch segment 5 is inside, fits and locking reliably with the inclined-plane of first folded formation 1 and second folded formation 2 respectively in the inclined-plane of latch segment 5.

The utility model is not limited only to the foregoing description, and all equivalences of doing according to the described structure of the utility model application range, characteristic and principle change or substitute, and all should be contained in the application range of the utility model.

Claims

1. the folding joint of an improvement; Comprise that first folded formation (1), second folded formation (2), hinge (3), elastic component (4), latch segment (5) and drive the actuating device of latch segment (5); First folded formation (1) and second folded formation (2) are hinged through hinge (3); Said latch segment (5) can compress first folded formation (1) and second folded formation (2), it is characterized in that, said second folded formation (2) is provided with groove (10); Said latch segment (5) is provided with the projection (11) that cooperates with said groove (10), and latch segment (5) can relatively rotate with second folded formation (2).

2. the folding joint of a kind of improvement according to claim 1 is characterized in that, said second folded formation (2) is provided with latch segment (5) is carried out spacing position limiting structure.

3. the folding joint of a kind of improvement according to claim 2 is characterized in that, said position limiting structure is the stop hook (16) on second folded formation (2).

4. the folding joint of a kind of improvement according to claim 2 is characterized in that, said position limiting structure is for to be installed in the limited screw (9) on second folded formation (2), and said limited screw (9) withstands the end that latch segment (5) is provided with projection (11).

5. the folding joint of a kind of improvement according to claim 4 is characterized in that, said latch segment (5) is provided with position-limited trough (12), and said limited screw (9) one ends are placed in the position-limited trough (12).

6. the folding joint of a kind of improvement according to claim 1; It is characterized in that; The medial surface (17) of said latch segment (5) tilts to second folded formation; Perhaps the medial surface (17) of latch segment (5) is provided with bottom surface bevelled deep gouge (15), and said deep gouge (15) bottom surface tilts to the second folded formation direction, and said elastic component (4) is placed in the deep gouge (15).

7. according to the folding joint of each described a kind of improvement of claim 1-6; It is characterized in that; Said actuating device is to comprise handle (8) and the pull bar (6) of being with eccentric cam; Said pull bar (6) one ends are fixed on the handle (8), and the other end passes latch segment (5), elastic component (4) is fixed on second folded formation (2).

8. the folding joint of a kind of improvement according to claim 7 is characterized in that, the groove (10) on said second folded formation (2) is smooth circular arc.

9. the folding joint of a kind of improvement according to claim 7 is characterized in that, pull bar (6) is fixed on second folded formation (2) through jam nut (7).

10. the folding joint of a kind of improvement according to claim 7 is characterized in that, said second folded formation (2) is provided with tapped bore, and pull bar (6) is threaded with said second folded formation.