CN202071947U

CN202071947U - Foldable joint

Info

Publication number: CN202071947U
Application number: CN2010206916606U
Authority: CN
Inventors: 贺新星; 莫怡平; 吴建华
Original assignee: Dahon Technologies Ltd
Current assignee: DAHON INTELLIGENCE PROPERTY CO., LTD.
Priority date: 2010-12-30
Filing date: 2010-12-30
Publication date: 2011-12-14
Anticipated expiration: 2020-12-30

Abstract

The utility model discloses a foldable joint, mainly used for a vehicle frame or a vertical pipe of a foldable bicycle and a foldable electrically-propelled vehicle, comprising an upper connection plate and a lower connection plate hinged at one side and locked at another side by a locking device, wherein a locking bolt of the locking device penetrates through the upper connection plate, one end of the locking bolt is hinged with an eccentric handle, a pressure block is arranged on the locking bolt and does not rotate relative to the locking bolt, a spring is sleeved with the locking bolt and holds the pressure block, another end of the locking bolt is screwed with a locking nut, the lower connection plate is provided with a groove cooperated with the pressure block, the width of the groove is larger than the width of the pressure plate and smaller than the length of the pressure block; the eccentric handle, the pressure block, the spring and the locking nut are respectively arranged at the two sides of the upper connection plate, the eccentric handle, the pressure block and the spring are arranged at one side of the lower connection plate, the pressure block is arranged between the eccentric handle and the spring and a positioning pole is arranged on the lower connection plate. The foldable joint has advantages of simple structure, low price, safety, reliability and convenient using.

Description

A kind of folding joint

Technical field

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

Background technology

The bicycle folding function is more and more paid attention to now, multiple folding device appears on the market, Chinese patent literature 00264016.3 discloses a kind of fold mechanism, when briquetting turns to the groove that blocks lower connecting plate, eccentric handle tension briquetting, upper and lower fishplate bar is compacted, and briquetting moves on to desired location along bolt, the clamping degree of mechanism can be adjusted to necessary requirement.But bolt forms with briquetting easily and relatively rotates, and briquetting is not easy to aim at the groove of lower connecting plate, and causes lock not tightly or fold the defective of inconvenience.

The utility model content

The utility model aims to provide a kind of failure-free folding joint.

Another purpose of the present utility model provides a kind of folding joint of easy aligning.

A kind of folding joint, be included in a side is hinged, opposite side is locked by latching device upper connecting plate, lower connecting plate, the tie down screw of described latching device runs through upper connecting plate, described tie down screw one end and eccentric handle are hinged, it is characterized in that described tie down screw is provided with the briquetting that does not relatively rotate, spring housing is connected on the tie down screw, and withstanding described briquetting, the tie down screw other end is threaded with jam nut.

Described lower connecting plate is provided with the groove that cooperates with described briquetting, and the width of described groove is bigger than the width of described briquetting, and is littler than the length of briquetting.

The part that the middle part of described tie down screw is provided with briquetting is non-circular, and described briquetting is provided with the through hole with the middle part form fit of tie down screw.

Described eccentric handle, briquetting, spring and jam nut place the upper connecting plate both sides respectively, and eccentric handle, briquetting, spring are positioned at lower connecting plate one side, and briquetting is between eccentric handle and spring.

Described upper connecting plate is provided with a breach, a sheathed S. A. in the described breach, and the through hole that tie down screw passes described S. A. is threaded with jam nut.

Described spring, briquetting, jam nut and eccentric handle place the upper connecting plate both sides respectively, and spring, briquetting and jam nut are positioned at lower connecting plate one side, and briquetting is between spring and jam nut.

Fixedly install a cushion cover on the described upper connecting plate, be provided with the cross recessed plastic mattress and circumferentially be fixed on the described cushion cover, eccentric handle can be rotated in the cross recess of described plastic mattress.

Described cushion cover is provided with groove, and the corresponding prominent shape structure that is provided with of plastic mattress is stuck in the described groove.

Described lower connecting plate is provided with registration mast, or the body of captiveing joint with lower connecting plate is provided with locating piece.

Be provided with magnet in described registration mast or the locating piece.

The utility model is simple in structure, cheap, tie down screw and briquetting are circumferentially fixing by form fit, by the axial restraint that is threaded between tie down screw and the jam nut, tie down screw is right with the difficult relative commentaries on classics of briquetting, folding joint is safer, reliable, and folding joint conveniently folds or launches by the groove on plastic mattress or registration mast structure aligning briquetting and the lower connecting plate.

Description of drawings

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

Fig. 2 is the block diagram of the utility model embodiment one plastic mattress;

Fig. 3 is the front view of the utility model embodiment one plastic mattress;

Fig. 4 is the three-dimensional assembly drowing of the utility model embodiment one;

Fig. 5 is the exploded view of the utility model embodiment two;

Fig. 6 is the view of the utility model embodiment three;

Fig. 7 is another view of the utility model embodiment three;

Fig. 8 is the exploded view of the utility model embodiment four;

Fig. 9 is the exploded view of the utility model embodiment five.

The specific embodiment

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

Embodiment one, as shown in Figure 1, the present embodiment folding joint comprises upper connecting plate 1, lower connecting plate 2, briquetting 6, tie down screw 4, jam nut 8, eccentric handle 3 and spring 7, upper connecting plate 1 and lower connecting plate 2 one ends are hinged by jointed shaft 9, the jointed shaft two ends adopt plain cushion 10 and tack hex(agonal)screw 11 to fix, the other end of upper connecting plate 1 is provided with a through hole 14, through hole 14 tops are provided with cushion cover 12 and are fixed on the upper connecting plate 1, cushion cover 12 is provided with groove 22, plastic mattress 13 is provided with the convex structure 23 that cooperates with the groove of cushion cover 12, tie down screw 4 one ends are hinged by rivet 5 and eccentric handle 3, tie down screw 4 other ends are provided with outside thread, pass plastic mattress 13 successively, cushion cover 12, through hole 14, briquetting 6, spring 7, be threaded with jam nut 8, the eccentric edge of eccentric handle 3 is buckled in the cross recess, tie down screw 4 middle parts are set as flats, " protruding " font, concavity or other shape, cooperate with the through hole of briquetting 6, tie down screw 4 can not rotate relatively with briquetting 6, establish a groove 15 that cooperates with briquetting 6 on the lower connecting plate 2, the width of groove 15 is more bigger than the width of described briquetting, length than briquetting 6 is smaller, eccentric handle 3 drive briquettings 6 to the length of groove 15, during wide coincidence, at this moment, the eccentric edge of eccentric handle 3 is buckled in cross recessed " 1 " the word groove, briquetting 6 can pass in and out groove 15, when the long limit of briquetting 6 during vertically across the Width of groove 15, at this moment, the eccentric edge of eccentric handle 3 is buckled in cross recessed " " the word groove, locking eccentric handle 3, can with on, lower connecting plate compresses, as Fig. 2, shown in Figure 3, Fig. 2 is the block diagram of the utility model embodiment one plastic mattress, Fig. 3 is the front view of the utility model embodiment one plastic mattress, jam nut 8 moving on tie down screw 4, on the scalable, lower connecting plate step up degree, Fig. 4 is folding joint locking state figure.

Embodiment two, as shown in Figure 5, the present embodiment folding joint, be with the difference of folding joint among the embodiment one, present embodiment adopts registration mast 18 to replace cushion cover and plastic mattress, be no cushion cover and plastic mattress on the upper connecting plate in the present embodiment, groove 15 sides of lower connecting plate are provided with registration mast 18, also can in registration mast 18, magnet be set, magnetic force between magnet and the briquetting 6 can prevent that handle from arbitrarily rotating, when briquetting 6 can pass in and out groove 15, the side that registration mast 18 is withstood in one side of briquetting 6 one ends, when the long limit of briquetting 6 during vertically across the Width of groove 15, the side that registration mast 18 is withstood in a side of briquetting 6 other ends, be the positioning action that folding joint passes through registration mast 18, guarantee that briquetting 6 is in folding or deployed condition position.

Embodiment three, as Fig. 6, shown in Figure 7, the present embodiment folding joint, the difference of the folding joint among itself and the embodiment two is, present embodiment adopts locating piece 17 to replace registration mast 18 structures, on the body that described locating piece 17 is located at lower connecting plate is captiveed joint, more reliable for guaranteeing folding joint at locking state, also baffle plate 16 can be set on upper connecting plate.

Embodiment four, as shown in Figure 8, the present embodiment folding joint comprises upper connecting plate 1, lower connecting plate 2, briquetting 6, tie down screw 4, jam nut 8, eccentric handle 3 and spring 7, upper connecting plate 1 and lower connecting plate 2 one ends are hinged by jointed shaft 9, the jointed shaft two ends adopt plain cushion 10 and tack hex(agonal)screw 11 to fix, the other end of upper connecting plate 1 is provided with a through hole 14, tie down screw 4 one ends are hinged by rivet 5 and eccentric handle 3, tie down screw 4 other ends are provided with outside thread, pass briquetting 6 successively, spring 7, the through hole 14 of upper connecting plate, be threaded with jam nut 8, the eccentric edge of eccentric handle 3 is contained in the deep-slotted chip breaker of briquetting 6, eccentric handle 3 and slide block are positioned at lower connecting plate one side, tie down screw 4 middle parts can be set as flats, " protruding " font or other shape, cooperate with the through hole of briquetting 6, tie down screw 4 can not rotate relatively with briquetting 6, establish a groove 15 that cooperates with briquetting 6 on the lower connecting plate 2, the width of groove 15 is more bigger than the width of described briquetting, length than briquetting 6 is smaller, groove 15 sides of lower connecting plate are provided with registration mast 18, eccentric handle 3 drive briquettings 6 to the length of groove 15, during wide coincidence, eccentric handle 3 and briquetting 6 can pass in and out groove 15, at this moment, the side that registration mast 18 is withstood in one side of briquetting 6 one ends, when the long limit of briquetting 6 during vertically across the Width of groove 15, the side that registration mast 18 is withstood in one side of briquetting 6 other ends, locking eccentric handle 3, can with on, lower connecting plate compresses, jam nut 8 moving on tie down screw 4 is on the scalable, the clamping degree of lower connecting plate.

Embodiment five, as shown in Figure 9, the folding joint of present embodiment, be with the difference of folding joint among the embodiment four, present embodiment upper connecting plate 1 is established a breach 19 with groove 15 correspondence positions, establish a turning cylinder 20 in the described breach 19, tie down screw 4 one ends are hinged by rivet 5 and eccentric handle 3, tie down screw 4 other ends are provided with outside thread, pass briquetting 6 successively, spring 7, through hole 21 on the turning cylinder, be threaded with jam nut 8, eccentric handle 3 and briquetting 6 can relatively rotate axle 20 and go to and groove 15 places, eccentric handle 3 drives briquetting 6, the long limit that makes briquetting 6 is vertically across the Width of groove 15, at this moment, the side that registration mast 18 is withstood in one side of briquetting 6 other ends, locking eccentric handle 3, can with on, lower connecting plate compresses, unclamp eccentric handle 3, rotating eccentricity handle 3 makes the long limit of briquetting 6 consistent with the length direction of groove 15, and eccentric handle 3 and briquetting 6 can relatively rotate axle 20 and go to disengaging groove 15 positions, jam nut 8 moving on tie down screw 4 is on the scalable, the clamping degree of lower connecting plate.

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, feature and principle change or substitute, and all should be contained in application range of the present utility model.

Claims

1. folding joint, be included in a side is hinged, opposite side is locked by latching device upper connecting plate (1), lower connecting plate (2), the tie down screw of described latching device (4) runs through upper connecting plate (1), described tie down screw (4) one ends and eccentric handle (3) are hinged, it is characterized in that, described tie down screw (4) is provided with the briquetting (6) that does not relatively rotate, spring (7) is socketed on the tie down screw (4), and withstanding described briquetting (6), tie down screw (4) other end is threaded with jam nut (8).

2. folding joint according to claim 1 is characterized in that, described lower connecting plate (2) is provided with the groove (15) that cooperates with described briquetting (6), and the width of described groove (15) is bigger than the width of described briquetting (6), and is littler than the length of briquetting (6).

3. folding joint according to claim 2 is characterized in that, the part that the middle part of described tie down screw (4) is provided with briquetting is non-circular, and described briquetting is provided with the through hole with the middle part form fit of tie down screw (4).

4. folding joint according to claim 1, it is characterized in that, eccentric handle (3), briquetting (6), spring (7) place upper connecting plate (1) both sides respectively with jam nut (8), eccentric handle (3), briquetting (6), spring (7) are positioned at lower connecting plate one side, and briquetting (6) is positioned between eccentric handle (3) and the spring (7).

5. a kind of folding joint according to claim 4, it is characterized in that, described upper connecting plate (1) is provided with a breach (19), a sheathed S. A. (20) in the described breach, and the through hole (21) that tie down screw (4) passes described S. A. (20) is threaded with jam nut (8).

6. a kind of folding joint according to claim 1, it is characterized in that, spring (7), briquetting (6), jam nut (8) place upper connecting plate (1) both sides respectively with eccentric handle (3), spring (7), briquetting (6) and jam nut (8) are positioned at lower connecting plate one side, and briquetting (6) is positioned between spring (7) and the jam nut (8).

7. a kind of folding joint according to claim 6, it is characterized in that, fixedly install a cushion cover (12) on the upper connecting plate (1), be provided with cross recessed plastic mattress (13) and circumferentially be fixed on the described cushion cover (12), eccentric handle (3) can be rotated in the cross recess of described plastic mattress.

8. a kind of folding joint according to claim 7 is characterized in that, cushion cover (12) is provided with groove (22), and the corresponding prominent shape structure (23) that is provided with of plastic mattress (13) is stuck in the described groove (22).

9. according to each described a kind of folding joint of claim 4-6, it is characterized in that described lower connecting plate (2) is provided with registration mast (18), or the body of captiveing joint with lower connecting plate is provided with locating piece (17).

10. a kind of folding joint according to claim 9 is characterized in that, is provided with magnet in described registration mast (18) or the locating piece (17).