CN201705796U

CN201705796U - Folding joint

Info

Publication number: CN201705796U
Application number: CN2010202046825U
Authority: CN
Inventors: 袁开靖
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-05-26
Filing date: 2010-05-26
Publication date: 2011-01-12
Anticipated expiration: 2020-05-26

Abstract

The utility model relates to the field of fastening devices for the mutual connection of rods or pipes, in particular to a folding joint mainly comprising a main folding body and an auxiliary folding body which are mutually connected; the center of the outer side of the main folding body is provided with a rectangular chute; the bottom part of the chute is provided with a sliding window; a slider and a reset spring are assembled in the chute in a sliding way; the outer surface of the slider is provided with a pothole, and the bottom part thereof is provided with a positioning pin; one end of the reset spring is propped against the concave part of the slider and the other end thereof is propped against the inner side wall of the main folding body; and the inner wall of the auxiliary folding body is provided with a plurality of positioning slots, the positioning pin is inserted into and extends out of the sliding window and is meshed with one of the positioning slots, and the main folding body and the auxiliary folding body concentrically and relatively rotate and are connected in a sliding way. The utility model has the beneficial effects that the folding joint has smooth and simple appearance, does not have hand clamping spacing as well as sharp and protruded part, meets the safe design standards of all countries in the new century, has simple structure and can be widely applied to industrial products.

Description

A kind of folding joint

Technical field

The utility model relates to the interconnective fastening means field of bar or pipe, relates in particular to a kind of folding joint.

Background technique

At present, the rotating clamp plate folding structures that adopt on the product of body building equipment such as scooter, leisure foot plate bicycle and small foldable bicycle more, its hole gap and folding controlling component are exposed to the outside more, the as easy as rolling off a log finger that crushes the user in use and folding process, do not meet the safety standard of design and operation, bring great potential safety hazard to the user, corresponding economy and fame loss of bringing also for manufacturer and seller can not to estimate.

The model utility content

The utility model is for overcoming the deficiencies in the prior art part, and purpose is to provide a kind of profile slyness folding joint succinct, simple in structure, safe and convenient to use, has successfully solved problems of the prior art.

The utility model is to achieve the above object by the following technical programs: a kind of folding joint, comprise interconnective main folded formation and secondary folded formation, the outer side center of described main folded formation is established a rectangular chute, a sliding window is established in the chute bottom, slidable fit one slide block and Returnning spring in the chute, the slide block outer surface is provided with pothole, and the bottom of slide block is provided with locating stud, one end of Returnning spring withstands on the slide block recess, and the other end peaks at main folded formation madial wall; Described secondary folded formation inwall is provided with several locating slots, and locating stud inserts and stretches out the engagement of one of sliding window and several locating slots, and described main folded formation is slidingly connected for concentric in relative rotation with secondary folded formation.

As preferably, described folding joint also includes rotatable handle, and for being slidingly matched, rotatable handle is spacing being threaded by bolt and main folded formation to rotatable handle by bolt and secondary folded formation.

As preferably, main folded formation middle inside is provided with interior cover, a center screw is established at interior cover center, secondary folded formation middle inside is provided with overcoat, the relative suit of overcoat on the interior cover on the main folded formation and the secondary folded formation, and secondary folded formation outer side center is provided with circular hole, bolt and circular hole are Spielpassung, the slider bottom end face is provided with spacing cave, and bolt and interior cover are for being threaded, and bolt and spacing cave are the spacing relation of pegging graft.

As preferably, folding joint also includes cover plate, and cover plate radially is provided with four screws by screw and main folded formation outboard end empty place and is spirally connected to cover and is located in the groove of main folded formation outer end.

As preferably, several locating slots are the taper locating slot, and locating slot entad is provided with according to set angle, and by little greatly outward in its cross section, described locating stud is the taper identical with the cross section of locating slot.

As preferably, several locating slots can be set to two or three according to the function needs, the mark line of different colours is set at the main folded formation outer end edges place of corresponding locating slot, its cobalt blue is for launching, red for folding, and on the following pipe of aiming at blue markings line place, the arrow mark is set, and the arrow mark is corresponding with locating stud in the main folded formation, on same radial alignment.

As preferably, described rotatable handle is arranged in the groove of secondary folded formation outer end.

The beneficial effects of the utility model: the folding joint profile is slick and sly succinct, no tong gap and sharp projection position, meet new century security for all countries design standard, simple in structure, can be widely used in the industrial products such as various scooters, leisure foot plate bicycle, folding bicycle, fitness equipments, medical apparatus, military project building materials, haberdashery and hardware and amusement and travel.Owing to adopted the setting of double-locking safety structure, when the user was not intended to open wherein arbitrary lock function, its whole folding joint can not be opened under the effect of another locking structure yet, and was safe and convenient to use in the structural design.

Description of drawings

Fig. 1 is the schematic perspective view of folding joint among the utility model embodiment 1;

Fig. 2 is the exploded view of the folding joint among Fig. 1;

Fig. 3 is the A-A sectional view of Fig. 4;

Fig. 4 is applied to the structural representation of deployed condition in the scooter for folding joint among the embodiment 1;

Fig. 5 is applied to the structural representation of folded state in the scooter for folding joint among the embodiment 1;

Fig. 6 is the sectional view of folding joint among the utility model embodiment 2;

Fig. 7 is a handle arrangement schematic representation among the utility model embodiment 2.

Among the figure: cover, 20-circular hole in 1-bolt, 2-locating slot, 3-master's folded formation, 4-screw, 5-center screw, the sliding window of 6-, 7-locating stud, 8-slide block, 9-screw, 10-waist shaped hole, 11-cover plate, 12-spring, 13-pothole, 14-chute, 15-overcoat, the secondary folded formation of 16-, 17-handle, the spacing cave of 18-, the 19-, the last pipe of 21-, 22-be pipe down.

Embodiment

Below in conjunction with specific embodiment the utility model is described further, but protection domain of the present utility model is not limited in this:

Embodiment 1: as Fig. 1, Fig. 2, shown in Figure 3: a kind of folding joint comprises interconnective main folded formation 3, secondary folded formation 16, cover plate 11, rotatable handle 17; Cover 19 in main folded formation 3 middle inside are provided with, secondary folded formation 16 middle inside are provided with overcoat 15, and the overcoat 15 relative suits on the interior cover 19 on the main folded formation 3 and the secondary folded formation 16 are slip cooperating relationship in relative rotation with one heart; Four screws 4 of main folded formation 3 outboard end groove empty place radial equipartitions, a rectangular chute 14 is established at the center, chute 14 is provided with between two parties, slidable fit one slide block 8 and Returnning spring 12 in the chute 14, slide block 8 outer surfaces are provided with pothole 13, a sliding window 6 is established in chute 14 bottoms, the bottom of slide block 8 is provided with locating stud 7, one end of Returnning spring 12 withstands on slide block 8 recesses, the other end peaks at main folded formation 3 madial walls, slide block 8 bottom end faces are provided with spacing cave 18, cover 19 in main folded formation 3 inboard centers are provided with, and a center screw 5 is established at interior cover 19 centers; Cover plate 11 is covered in the main folded formation 3 outboard end grooves by screw 9.Be the threaded relation with main folded formation 3, slide block 8 is a slip cooperating relationship with chute 14; Secondary folded formation 16 inwalls are provided with two taper locating slots 2, locating slot 2 entad is provided with according to set angle, by big outer little in its cross section, secondary folded formation 16 middle inside are provided with overcoat 15, secondary folded formation 16 outer side center are provided with circular hole 20, wherein: rotatable handle 17 and bolt 1 integrated through injection molding, be fixedly connected relation, bolt 1, rotatable handle 17 connects slip cooperating relationship with secondary folded formation 16 for retaining, bolt 1 is a clearance fit relationship with circular hole 20, bolt 1 is the fixed relationship that is spirally connected with interior cover 19, and locating stud 7 is the location matching relationship of pegging graft, locating stud 7 with locating slot 2, locating slot 2 cross sections are the taper of equal angular; Slidable fit one slide blocks 8 in the main folded formation 3 center chutes 14, being honored as a queen by cover plate 11 spiral shells to form a cuboid chute 14, the sliding window 6 that the pothole 13 of slide block 8 outwards, locating stud 7 inserts and stretch out near the center meshes with one of secondary folded formation 16 inner chambers locating slot 2, and with an end of spring 12 top and slide block 8 recesses, the other end peaks at main folded formation 3 madial walls, slide block 8 can be free to slide in chute 14, and locating stud 7 can arbitrarily mesh with secondary each locating slot 2 of folded formation 16 inwalls.

It is example that present embodiment is applied in the scooter with folding joint, and its working principle is described:

The pipe 21 of going up of the main folded formation 3 of folding joint and scooter is connected, and secondary folded formation 16 is connected with the following pipe 22 of scooter, and main folded formation 3, secondary folded formation 16 are with last pipe 21, manage 22 be connected and can be one and process down, but also split is welded; Described folding joint, for guaranteeing quality of product and appearance and modeling, this folding joint can adopt advanced production technology manufacturing such as injection moulding, die casting, cold-heading, stretching and punching press.

As Fig. 4, shown in Figure 5, when needs are opened the folding joint use, the user unscrews out handle 17 at first counterclockwise, main folded formation 3 and secondary folded formation 16 inboard exterior edge face frictional force are removed, form rotatable gap, the spacing cave 18 on slide block 8 interior edge faces is promptly thrown off in bolt 1 end simultaneously, locking this moment first is opened, again finger is put in when inwardly pulling slide block 8 in the waist shaped hole 10 on the cover plate 11, spring 12 pressurizeds retraction, slide block 8 can be along chute 14, sliding window 6 footpaths are inwardly moved, locating stud 7 is just thrown off one of them locating slot 2, locking this moment second is opened, counterclockwise then switching master folded formation 3, make the blue markings line at main folded formation 3 end face edge places aim at the arrow place of managing down on 22, unclamp slide block 8, at this moment, spring 12 compression energies discharge, promote slide block 8 along chute 14, sliding window 6 footpaths are outwards moved, locating stud 7 just inserts locating slot 2, because locating stud 7, locating slot 2 is the cone matching relationship, so locating stud 7 can be eliminated the gap and closely mesh the location with locating slot 2 under spring 12 thrust, finish first lock function of folding joint, thereafter screw handle 17 again, force main folded formation 3 and secondary folded formation 16 to relatively move to the inboard exterior edge face of two folded formations and be tight against, bolt 1 end is supported in the spacing cave 18 on slide block 8 interior edge faces and spacing immediately therewith, thereby finishes second lock function of folding joint; When the needs folding storage, the user opens slide block 8 according to the aforesaid operations step with the hand button, and switching master folded formation 3 makes the red mark line at main folded formation 3 end face edge places aim at the arrow place of managing down on 22 clockwise, unclamps slide block 8, screws handle 17 again and gets final product.

Described folding joint adopts the setting of double-locking structure, and when the user was not intended to open wherein arbitrary lock function, its whole folding joint can not be opened under the effect of another locking structure yet, thereby has guaranteed user's safety.

Embodiment 2: the present embodiment difference from Example 1 is, as Fig. 6, shown in Figure 7, and rotatable handle 17 whole being arranged in the secondary folded formation 16 outer end grooves of folding joint.Rotatable handle is hidden in the secondary folded formation 16 outer end grooves, and its profile grace is not easy to be touched easily the performance safety and reliability.

Above described be specific embodiment of the utility model and the know-why used; if comply with the change that conception of the present utility model is done; when the function that it produced does not exceed spiritual that specification and accompanying drawing contain yet, must belong to protection domain of the present utility model.

Claims

1. folding joint, comprise interconnective main folded formation and secondary folded formation, the outer side center that it is characterized in that described main folded formation (3) is established a rectangular chute (14), a sliding window (6) is established in chute (14) bottom, interior slidable fit one slide block of chute (14) (8) and Returnning spring (12), slide block (8) surface is provided with pothole (13), and the bottom of slide block (8) is provided with locating stud (7), one end of Returnning spring (12) withstands on slide block (8) recess, and the other end peaks at main folded formation (3) madial wall; Described secondary folded formation (16) inwall is provided with several locating slots (2), locating stud (7) stretches out sliding window (6) and inserts locating slot (2), with the engagement of one of several locating slots (2), described main folded formation (3) is slidingly connected for concentric in relative rotation with secondary folded formation (16).

2. a kind of folding joint according to claim 1, it is characterized in that described folding joint also includes rotatable handle (17), for being slidingly matched, rotatable handle (17) is spacing being threaded by bolt (1) with main folded formation (3) to rotatable handle (17) by bolt (1) and secondary folded formation (16).

3. a kind of folding joint according to claim 2, it is characterized in that main folded formation (3) middle inside is provided with interior cover (19), a center screw (5) is established at interior cover (19) center, secondary folded formation (16) middle inside is provided with overcoat (15), the relative suit of overcoat (15) on interior cover (19) on the main folded formation (3) and the secondary folded formation (16), secondary folded formation (16) outer side center is provided with circular hole (20), bolt (1) connects for the gap retaining with circular hole (20), slide block (8) bottom end face is provided with spacing cave (18), bolt (1) and interior cover (19) are for being threaded, and bolt (1) is the spacing relation of pegging graft with spacing cave (18).

4. according to claim 1 or 2 or 3 described a kind of folding joints, it is characterized in that also including cover plate (11), cover plate (11) radially is provided with four screws (4) by screw (9) and main folded formation (3) outboard end empty place and is spirally connected to cover and is located in the groove of main folded formation (3) outer end.

5. a kind of folding joint according to claim 4, it is characterized in that several locating slots (2) are taper, locating slot (2) entad is provided with according to set angle, and by little greatly outward in its cross section, described locating stud (7) is the identical taper in cross section with locating slot (2).

6. a kind of folding joint according to claim 5 is characterized in that several locating slots (2) can be set to two, three or more locating slots (2) according to the function needs.

7. according to claim 1 or 6 described a kind of folding joints, it is characterized in that described rotatable handle (17) is arranged in the groove of secondary folded formation (16) outer end.