CN201209007Y

CN201209007Y - Folding joint

Info

Publication number: CN201209007Y
Application number: CNU2008203001970U
Authority: CN
Inventors: 徐达来
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-02-03
Filing date: 2008-02-03
Publication date: 2009-03-18
Anticipated expiration: 2018-02-03

Abstract

The utility model discloses a folding joint which is provided with a connecting plate A and a connecting plate B connected through a hinge axis with a handle, wherein the other end of the connecting plate A corresponding to the hinged end is a bent hook-shaped edge used for buckling, and a lock tongue is movably mounted on the connecting plate B corresponding to the hook-shaped edge; a reset spring is arranged between the lock tongue and the connecting plate B or a mechanical piece fixedly connected with the connecting plate B, and a toggle pin is mounted on the hinge axis; the lock tongue is provided with an unlocking action part, and an active space of the unlocking action part is crossed with a rotary space of the toggle pin. The utility model is optimally used on a folding bicycle. Compared with the prior art, the utility model has the advantages of simple structure, easy manufacture, low production cost, safety, reliability, beautiful appearance and automatic buckling without looseness.

Description

Folding joint

Technical field

The utility model relates to technical field of bicycles, especially a kind of folding joint that is applicable to Foldable cycle.

Technical background

There is a kind of latch fitting energy automatic fastening to lock in the folding joint that existing folding bicycle uses.This folding joint is easy and simple to handle, and action is quick.But structure is than complexity and have loosening after locking, for example China Patent No. is 200620062021.7 structures of being showed, the locking lever of this folding joint connects in the connecting bore of pulling not only rotatable but also can slide two, therefore be that the bigger a kind of running-fit in gap connects, though two fishplate bars of joint can be limited, bigger shake allowance are arranged.This folding joint structure is complicated, assembling is difficult, locking lever need be used the big small axle diameter of lathe car system, locking lever is socketed with the bar cover of skewed slot outward again, in the bar cover pressure spring is housed again, earlier pressure spring is upwards compressed during the dress lateral pin, the skewed slot that then lateral pin is passed the bar cover installs on the locking lever, carry out these work in very limited space, certain degree of difficulty is arranged, manufacturing cost is higher.

Summary of the invention

Problem to be solved in the utility model provides a kind of simple in structure, parts and cooperates firm firm, assembling to be easy to folding joint.

In order to address the above problem, the scheme that the utility model adopts is: this folding joint has connecting panel first and the connecting panel second that is connected by hinge, described connecting panel first is the hook-shaped edges that is used for bending sealed under the superimposed state of connecting panel first and connecting panel second with respect to the other end of pin jointed end, dead bolt corresponding to described hook-shaped edges is housed on the connecting panel second versatilely, under connecting panel first and connecting panel second closed state, this dead bolt inserts in the hook-shaped edges of connecting panel first and blocks the connecting panel first, prevent the connecting panel first around hinge with respect to connecting panel second rotating opening; This dead bolt and described connecting panel second or with parts that connecting panel second is captiveed joint between retracing spring is housed; Described hinge is provided with handle and finger is housed, described dead bolt has a service portion of unblanking for described finger toggle action, the activity space of this service portion of unblanking intersects with the revolution space of described finger, when the finger that rotates with hinge acts on this when unblanking service portion, can drive described dead bolt and overcome the application force of described spring and retraction movement, also can allow the application force of described spring overcome the power that acts on the handle and allow described dead bolt do to reset motion.

In the such scheme, can also be provided with on the described dead bolt when under connecting panel first and connecting panel second closed state, supplying described finger occupy-place to limit the sealed limited section of described dead bolt activity, the activity space of this sealed limited section intersects with the revolution space of described finger, this structure setting can allow finger go in the activity space of the sealed limited section of described dead bolt, the restriction dead bolt withdraws from latched position, is not opened by accident to guarantee connecting panel first and connecting panel second closed state.

Such scheme one of form more specifically can be that turn up the both sides of described connecting panel second pin jointed end, described dead bolt is made by the sheet material that is provided with through hole, this dead bolt is connected on the described connecting panel second by spacing ring, and the service portion of unblanking of described dead bolt is the marginal portion of stretching into the described through hole between described hinge and the described connecting panel second.Such scheme more specifically form two can be that turn up the both sides of described connecting panel second pin jointed end, described dead bolt is made by sheet material, it has the part of the flute profile of bending shaping, the two side channels top of this flute profile part is provided with outstanding hook, these hooks collude outside the slotted hole of described connecting panel second, and the service portion of unblanking of described dead bolt is the part that stretches into the annular between described hinge and the described connecting panel second.Such scheme more specifically form three be that all turn up the both sides of the pin jointed end of described connecting panel first and connecting panel second, described dead bolt is connected on the described connecting panel second by spacing frid, the service portion of unblanking of described dead bolt is the crotch part of colluding outside described hinge.

The service portion of unblanking that the utility model is alleged is meant that finger acts on the position on the dead bolt under the state of stirring the dead bolt unlocking action; The alleged sealed limited section of the utility model is meant stirs the moving position that dead bolt occupies dead bolt, with restriction dead bolt position of the dead bolt that withstood during retracted mode in the hook-shaped edges of connecting panel first.

In the above-mentioned and various scheme, the front end of described dead bolt can be provided with has the inclined-plane of meeting described connecting panel first hook-shaped edges.

Owing to adopted such scheme, the utility model compared with prior art has following beneficial effect:

1, simple in structure.The utility model integrates hinge and snap close control lever, adopts dead bolt to replace locking lever device of the prior art, removed the bar cover that oblique notches on it simultaneously, so structure is more simple, makes assembling easily, and manufacturing cost is lower.

2, part connects accurate solid.The hinge of the locking lever function of holding concurrently just rotates, and does not have the locking lever of prior art to need axial motion like that, does not also exist prior art need radially snap in the mode of axis hole, and therefore, its structure can be done accurately, and the gap is little.

3, easy to operate.Connecting panel first and connecting panel second fold when merging, the hook-shaped edges of connecting panel first just can be sealed by the bruising dead bolt, the light hinge that rotates prevents the dead bolt dropout with regard to the lockable locked state, not needing to want as prior art the rotation lock bar could allow two connecting panels fold merges, the rotation lock bar just can enter locked state again, and it is more convenient therefore to use.

Description of drawings:

Fig. 1 is the front view of the utility model embodiment one.

Fig. 2 is the cutaway view at the A-A place among Fig. 1.

Fig. 3 is the structural representation that the utility model embodiment one opens state.

Fig. 4 is the cutaway view of the utility model embodiment two.

Fig. 5 is the structural representation of the utility model embodiment two open modes.

Fig. 6 is the dead bolt structural representation of the utility model embodiment two.

The cutaway view of Fig. 7 the utility model embodiment three.

Fig. 8 is the structural representation of the utility model embodiment three open modes.

The specific embodiment

The utility model is described in further detail below in conjunction with the accompanying drawing example:

Among the embodiment as shown in Figure 1, 2, 3, the connecting panel first 11 of this folding joint is made by sheet material, its end is a pin jointed end, the cylindrical shell that one section bending forming is respectively arranged in the both sides of pin jointed end, with respect to the other end of this pin jointed end is the hook-shaped edges of bending, is welded with side plate 18 between the cylindrical shell of pin jointed end both sides and hook-shaped edges; The connecting panel second 13 of this folding joint also has a pin jointed end, and the edge break in the both sides of pin jointed end rises and makes connecting panel second 13 become trough plate, has hinge hole on the limit of turning up in the both sides of pin jointed end.Hinge 12 passes hinge hole on connecting panel second 13 dual-sides and the cylindrical shell of connecting panel first 11 pin jointed end both sides is connected connecting panel first 11 with connecting panel second 13; The spring cotter 16 that the handle 14 that hinge 12 is equipped with by an end and the other end are equipped with limits it and can't go here and there in hinge hole.Captive joint restraining position ring block 110 on the connecting panel second 13, dead bolt 15 is housed in spacing ring 110, dead bolt 15 is shaped by the sheet metal stamping-out, its front end bends up and has an inclined-plane of meeting connecting panel first 11 hook-shaped edges, rotate when connecting panel first 11 and will fold fully when being combined on the connecting panel second 13, the inclined-plane of connecting panel first 11 hook-shaped edges meeting bruising dead bolt 15 front ends, force dead bolt 15 inwardly to be withdrawn, under connecting panel first 11 is combined in state on the connecting panel second 13 fully, the tension spring 19 that is contained between dead bolt 15 and the spacing ring 10 will draw in the hook-shaped edges of dead bolt 15 insertion connecting panel first 11, and locking connecting panel first 11 is connected with connecting panel second 13.The position that dead bolt 15 articulates tension spring 19 upwards erects and as the sealed limited section of dead bolt 15, this sealed limited section is gone here and there moving space of move and is contained in the finger 17 on the hinge 12 with dead bolt 15 in spacing ring 110 rotation space intersects, when hinge 12 makes activity space position after finger 17 is against dead bolt 15 sealed limited sections under the drive of handle 14, limited the withdrawal of dead bolt 15, thereby guaranteed the lock-out state of connecting panel first 11 with connecting panel second 13.The rear portion of dead bolt 15 is provided with a rectangular through-hole, the marginal portion of this rectangular through-hole is as the service portion of unblanking of dead bolt 15, the activity space of this one also intersects with the rotation space of finger 17, when hinge 12 makes finger 17 act on the service portion of unblanking of dead bolt 15 under the drive of handle 14 after, after promptly acting on the marginal portion of rectangular through-hole, the qualification that finger 17 is removed dead bolt 15 sealed limited sections, be rotated further handle 14, finger 17 can drive dead bolt 15 and withdraw in the hook-shaped edges of connecting panel first 11, remove the locked state of connecting panel first 11 and connecting panel second 13, connecting panel first 11 can be around hinge 12 with respect to connecting panel second 13 rotating opening.

Among the embodiment shown in Fig. 4,5,6, the structure of the connecting panel first 21 of this folding joint, side plate 28, connecting panel second 23, hinge 22, handle 24, finger 27 is identical to structure and the annexation of embodiment one shown in Figure 3 with Fig. 1 with annexation.Dead bolt 25 is made by sheet material, it has the part of the flute profile of bending shaping, the two side channels top of this flute profile part respectively is provided with an outstanding hook, as Fig. 6, these two hooks collude outside the bottom surface of connecting panel second 23 slotted holes, and the service portion of unblanking of dead bolt 25 is the parts that stretch into the annular between hinge 22 and the connecting panel second 23.The front end of dead bolt 25 also has the inclined-plane of meeting connecting panel first 21 hook-shaped edges, rotate when connecting panel first 21 and will fold fully when being combined on the connecting panel second 23, the inclined-plane of connecting panel first 21 hook-shaped edges meeting bruising dead bolt 25 front ends, force dead bolt 25 inwardly to be withdrawn, under connecting panel first 21 is combined in state on the connecting panel second 23 fully, is contained in pressure spring 29 between dead bolt 25 and the connecting panel second 23 and will pushes away being connected of locking connecting panel first 21 and connecting panel second 23 in the hook-shaped edges that a dead bolt 25 inserts connecting panel first 21.The rear end of the part of dead bolt 25 flute profiles is as the sealed limited section of dead bolt 25, this sealed limited section intersects with the rotation space that is hooked in connecting panel second 23 slotted holes moving space of move of string and is contained in the finger 27 on the hinge 22 of dead bolt 25, when hinge 22 makes activity space position after finger 27 is against dead bolt 25 sealed limited sections under the drive of handle 24, limited the withdrawal of dead bolt 25, thereby guaranteed the lock-out state of connecting panel first 21 with connecting panel second 23.The annular section at the rear portion of dead bolt 25 is as the service portion of unblanking of dead bolt 25, the activity space of this one also intersects with the rotation space of finger 27, when making finger 27 under the drive of handle 24, hinge 22 acts on the service portion of unblanking of dead bolt 25, be on the ring part time, the qualification that finger 27 is removed dead bolt 25 sealed limited sections, being rotated further handle 24 fingers 27 can drive dead bolt 25 and withdraw in the hook-shaped edges of connecting panel first 21, remove the locked state of connecting panel first 21 and connecting panel second 23, connecting panel first 21 can be around hinge 22 with respect to connecting panel second 23 rotating opening.

Among Fig. 7 and the embodiment shown in Figure 8, connecting panel first 31 dual-sides of this folding joint are turned up, and its end is a pin jointed end, has hinge hole on the limit turning up of pin jointed end, are the hook-shaped edges of bending with respect to the other end of this pin jointed end; The trough plate that the dual-side that the connecting panel second 33 of this folding joint is is turned up, its end is a pin jointed end, has hinge hole on the limit turning up of pin jointed end.Hinge 32 passes connecting panel first 31 and with hinge hole on connecting panel second 33 dual-sides connecting panel first 31 is connected with connecting panel second 33, and an end of hinge 32 is equipped with handle 34.Be fixedly connected with spacing frid 310 on the connecting panel second 33, in spacing frid 310, dead bolt 35 is housed, the front end of dead bolt 35 has the inclined-plane of meeting connecting panel first 31 hook-shaped edges, rotate when connecting panel first 31 and will fold fully when being combined on the connecting panel second 33, the inclined-plane of connecting panel first 31 hook-shaped edges meeting bruising dead bolt 35 front ends, force dead bolt 35 inwardly to be withdrawn, under connecting panel first 31 is combined in state on the connecting panel second 33 fully, the pressure spring 39 that is contained between the screw on dead bolt 35 and the spacing frid 310 will promote in the hook-shaped edges of dead bolt 35 insertion connecting panel first 31, and locking connecting panel first 31 is connected with connecting panel second 33.There is a boss that upwards erects at the middle part of dead bolt 35, this boss is as the sealed limited section of dead bolt 35, this sealed limited section is gone here and there moving space of move and is contained in the finger 37 on the hinge 32 with dead bolt 35 in spacing frid 310 rotation space intersects, when making finger 37 under the drive of handle 34, hinge 32 is against dead bolt 35 sealed limited sections, when being the activity space position behind the boss at dead bolt 35 middle parts, limited the withdrawal of dead bolt 35, thereby guaranteed the lock-out state of connecting panel first 31 with connecting panel second 33.The rear portion of dead bolt 35 is the crotches that collude outside hinge 32, this crotch part is as the service portion of unblanking of dead bolt 35, the activity space of this one also intersects with the rotation space of finger 37, when making finger 37 under the drive of handle 34, hinge 32 acts on the service portion of unblanking of dead bolt 35, be in the crotch portion time, the qualification that finger 37 is removed dead bolt 35 sealed limited sections, being rotated further handle 34 fingers 37 can drive dead bolt 35 and withdraw in the hook-shaped edges of connecting panel first 31, remove the locked state of connecting panel first 31 and connecting panel second 33, connecting panel first 31 can be around hinge 32 with respect to connecting panel second 33 rotating opening.

Claims

[claim 1] a kind of folding joint, the connecting panel first and the connecting panel second that are connected by hinge are arranged, it is characterized in that: described connecting panel first is the hook-shaped edges that is used for sealed bending with respect to the other end of pin jointed end, dead bolt corresponding to described hook-shaped edges is housed on the connecting panel second versatilely, this dead bolt and described connecting panel second or with parts that connecting panel second is captiveed joint between retracing spring is housed; Described hinge is provided with handle and finger is housed, the described dead bolt service portion of unblanking, and the activity space of this service portion of unblanking intersects with the revolution space of described finger.
[claim 2] folding joint according to claim 1 is characterized in that: described dead bolt is provided with sealed limited section, and the activity space of this sealed limited section intersects with the revolution space of described finger.
[claim 3] folding joint according to claim 2, it is characterized in that: turn up the both sides of described connecting panel second pin jointed end, described dead bolt is made by the sheet material that is provided with through hole, this dead bolt is connected on the described connecting panel second by spacing ring, and the service portion of unblanking of described dead bolt is the marginal portion of stretching into the described through hole between described hinge and the described connecting panel second.
[claim 4] folding joint according to claim 2, it is characterized in that: turn up the both sides of described connecting panel second pin jointed end, described dead bolt is made by sheet material, it has the part of the flute profile of bending shaping, the two side channels top of this flute profile part is provided with outstanding hook, these hooks collude outside the slotted hole of described connecting panel second, and the service portion of unblanking of described dead bolt is the part that stretches into the annular between described hinge and the described connecting panel second.
[claim 5] folding joint according to claim 2, it is characterized in that: all turn up the both sides of the pin jointed end of described connecting panel first and connecting panel second, described dead bolt is connected on the described connecting panel second by spacing frid, and the service portion of unblanking of described dead bolt is the crotch part of colluding outside described hinge.
[claim 6] is characterized in that according to claim 1,2,3,4 or 5 described folding joints: the front end of described dead bolt has the inclined-plane of meeting described connecting panel first hook-shaped edges.