CN201220718Y

CN201220718Y - Improved folder

Info

Publication number: CN201220718Y
Application number: CNU2008200332702U
Authority: CN
Inventors: 尤佳
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-03-11
Filing date: 2008-03-11
Publication date: 2009-04-15
Anticipated expiration: 2018-03-11

Abstract

An improved folder is composed of a folding front seat, a folding rear seat and a rotating shaft. The folding front seat is rotationally connected with one side of the folding rear seat, and an interlock mechanism is arranged on the other side; the interlock mechanism is composed of an eccentric rotating shaft, a pulling rod and a spanner, wherein two ends of the eccentric rotating shaft are respectively fixed between two ear parts on one side of the folding front seat, one end of the pulling rod is movably sleeved with the eccentric rotating shaft, and the spanner is fixed at an end part of the eccentric rotating shaft; an eccentric small shaft is formed at the eccentric rotating shaft part; the pulling rod and the folding rear seat respectively correspond to a groove part and a lug boss which are clamped mutually; the screwing part of the pulling rod fixedly clamps an adjusting screw of the lug boss; a stretched spring is arranged between the pulling rod and the folding front seat; a connecting piece is sleeved with the eccentric small shaft along with the pulling rod; one side of the connecting piece fixes the pulling rod, and a retaining lug boss capable of being limited on a side surface at an end part of the spanner is arranged on the other side; the folder can be unfolded and locked conveniently; and the requirement of machining precision is not high, the production is easy, and the cost is rather low.

Description

The improved type folder

Technical field

The utility model relates to a kind of folding latching device, but the pipe fitting folded part of widespread use and folding bicycle and electric motor bicycle with folding is as folding joint.

Background technology

The more folding bicycle that is used for of folding joint, folding joint generally is positioned at the middle part of vehicle frame, plays the effect of hinge, can make bicycle folding from the middle part, is that the volume of bicycle reduces so that deposit and carry.When normally riding, the phenomenon that the catch gear of folding joint can not shake it front and back two parts locking of bicycle.Application number is that 200710066694 Chinese patent provides a kind of folding joint, comprise corresponding inner side edge match hinge-coupled the connection cover plate be connected base plate, connecting cover plate has a boss; Outward extending two lugs of connection base plate are hinged with locking and have contact with; Locking have contact be shaped on hook groove, adjusted screw hole, groove, down round tube hole, at least one regulates screw hole down, the pin-and-hole of two lugs with lock the following round tube hole that has contact with and cooperate and be penetrated with eccentrically weighted shaft; The two ends orienting cover of eccentrically weighted shaft is equipped with toggle mechanism; The adjusted screw hole that has contact with of locking is bolted with the adjusted screw, and following adjusting screw hole is bolted with down governing screw, both all with the eccentric face gap running-fit of eccentrically weighted shaft.By the adjusted screw, down structurally equipped had contact with in governing screw and locking, may command closely is connected as a single entity two sections bars (pipe) quickly and easily.But also have certain problem in the production of reality with in using, higher to each part and stack-mounted accuracy requirement in the time of production, the customer is not easy to adjust when in use.

Summary of the invention

In order to address the above problem, a kind of improved type folder that the utility model provides, have folded easy to operate fast, have splendid padlock degree function simultaneously.

The technical solution of the utility model is achieved in that a kind of improved type folder, by folding front stall, folding back seat and rotating shaft are formed, being somebody's turn to do folding front stall and folding back seat one side is rotationally connected by this rotating shaft, should fold and be provided with the latching device that to realize this folding front stall and the locking of folding back seat between front stall and the cooresponding opposite side of folding back seat, it is characterized in that, this latching device is by the two ends eccentrically weighted shaft of rotational fixation between these folding front stall one side two ears respectively, one end activity is set in the pull bar of this eccentrically weighted shaft and is fixed in the spanner composition of this eccentrically weighted shaft end, this eccentrically weighted shaft position that is set in this pull bar forms the eccentric little axle that dwindles, this pull bar middle part folds corresponding respectively slot part and the boss of being convenient to snap in mutually that be provided with of back seat sidepiece with being somebody's turn to do, this pull bar is rotated with one and is convenient to the plus-minus screw that the end tightens this boss, be provided with the spring of tension between this pull bar and this folding front stall, this spanner also is provided with one and is convenient to the interlinked mechanism that spanner drive pull bar is opened between this pull bar.

As further improvement of the utility model, this interlinked mechanism is, thereby this tie rod end is provided with the spline boss that can interfere this spanner end sides to be rotated together when this spanner is opened.

As further improvement of the utility model, this interlinked mechanism is, together be set in the connecting strap of the little axle of this off-centre with this pull bar, in this pull bar end face, and opposite side is provided with a spline boss that can be defined in this spanner end sides to this connecting strap one side by dowel fixes.

As further improvement of the utility model, this spanner end is provided with two ears that can be set in these eccentrically weighted shaft two ends respectively, and wherein the perforation of at least one ear has the standstill face, and this eccentrically weighted shaft end that should the standstill face is had the spline plane.

As further improvement of the utility model, this spanner has the groove shape 43 of ccontaining this pull bar of energy.

Useful technique effect of the present utility model is: this folder is by folding front stall, folding back seat and rotating shaft are formed, being somebody's turn to do folding front stall and folding back seat one side is rotationally connected by this rotating shaft, be provided with latching device between opposite side, this latching device is by the two ends eccentrically weighted shaft of rotational fixation between these folding front stall one side two ears respectively, one end activity is set in the pull bar of this eccentrically weighted shaft and is fixed in the spanner composition of this eccentrically weighted shaft end, this eccentrically weighted shaft position that is set in this pull bar forms the eccentric little axle that dwindles, this pull bar middle part folds corresponding respectively slot part and the boss of being convenient to snap in mutually that be provided with of back seat sidepiece with being somebody's turn to do, this pull bar is rotated with one and is convenient to the plus-minus screw that the end tightens this boss, be provided with the spring of tension between this pull bar and this folding front stall, this spanner also is provided with one and is convenient to the interlinked mechanism that spanner drive pull bar is opened between this pull bar, like this when spanner is opened certain angle, can open together by related this pull bar, and the opening of this pull bar, just make the slot part of pull bar break away from the boss that should fold back seat, thereby should fold front stall and the disengaging of folding back seat one side, open this folder; When locking during this folder, as long as rotating spanner, just must the pushing drawing rod fastening boss on should folding back seat, on this pull bar slot part with should fasten by folding back seat convex platform.

Plus-minus screw on the adjusting yoke just can be regulated slot part back seat convex platform locking degree on this pull bar, has realized folder locking effect thus.

Description of drawings

Structural representation when Fig. 1 is the locking of catch gear described in the utility model;

Structural representation when Fig. 2 opens for catch gear described in the utility model;

Fig. 3 is the structural representation after catch gear is opened described in the utility model;

Fig. 4 is another structural representation after catch gear is opened described in the utility model;

Fig. 5 is a structure assembly drowing of the present utility model.

Contrast above accompanying drawing and be supplemented as follows explanation:

1---folding front stall 51---end

11,12---ear 6---pull bar

2---folding back seat 61---slot part

21---boss 7---eccentrically weighted shaft

The eccentric little axle of 3---rotating shafts 71---

4---spanner 72---spline plane

41---standstill face 8---connecting strap

42---plane 81---spline boss

43---groove shape 9---pin

44,45---ear 10---spring

5---plus-minus screw

The specific embodiment

Below in conjunction with Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, embodiment describes in further detail the present invention:

A kind of improved type folder, by folding front stall 1, folding back seat 2 and rotating shaft 3 are formed, being somebody's turn to do folding front stall 1 and folding back seat 2 one sides is rotationally connected by this rotating shaft 3, should fold and be provided with the latching device that to realize this folding front stall and the locking of folding back seat between front stall 1 and folding back seat 2 cooresponding opposite sides, this latching device by two ends respectively rotational fixation in these folding front stall 1 one sides two ears (11,12) eccentrically weighted shaft 7 between, one end activity is set in the pull bar 6 of this eccentrically weighted shaft and is fixed in spanner 4 compositions of this eccentrically weighted shaft end, this eccentrically weighted shaft position that is set in this pull bar 6 forms the eccentric little axle 71 that dwindles, these pull bar 6 middle parts fold corresponding respectively slot part 61 and the boss of being convenient to snap in mutually 21 that be provided with of back seat 2 sidepieces with being somebody's turn to do, this pull bar is rotated with one and is convenient to the plus-minus screw 5 that the end tightens this boss, be provided with the spring 10 of tension between this pull bar 6 and this folding front stall, this spanner 4 also is provided with one and is convenient to the interlinked mechanism that spanner drive pull bar is opened between this pull bar 6.

This interlinked mechanism is, together is set in the connecting strap 8 of the little axle 71 of this off-centre with this pull bar 6, and this connecting strap one side is fixed in this pull bar 6 end faces by pin 9, and opposite side is provided with a spline boss 81 that can be defined in these spanner 4 end sides.These spanner 4 ends are provided with two ears (44,45) that can be set in these eccentrically weighted shaft 7 two ends respectively, and the perforation of one of them ear has standstill face 41, and these eccentrically weighted shaft 7 ends that should standstill face 41 are had spline plane 72.This spanner 4 has the groove shape 43 of ccontaining this pull bar 9 of energy.

Drive the little axle 71 of these off-centre when this spanner 4 passes through standstill face 41, when turning to certain angle, the plane 42 of the end of spanner 4 produces interference with the spline boss of this connecting strap 8 81, thereby by the effect of this connecting strap 86 groups on this pull bar is disintegrated poststack seat 2.

When spanner 4 continues when the direction of opening is rotated, because this connecting strap 8 and pull bar 6 are set on together by eccentrically weighted shaft 7, an end and the pull bar 6 of connecting strap 8 are fixed together by pin 9 simultaneously, so along with the rotation of spanner 4 and the effect of connecting strap 8, pull bar 6 one ends are along with eccentrically weighted shaft 7 rotates, the other end leaves the boss 21 on the folding back seat 2 gradually, and spring 10 produces pulling force at this moment, and 3 rotations around the shaft separate the folding front stall 1 on the folder with folding back seat 2.

If want folding front stall 1 and folding back seat 2 merged and locking, pin spanner towards the direction that spanner 4 is opened, will fold earlier front stall 1 and folding back seat 2 merge be adjacent to after, discharge spanner 4 gradually, owing to the tension of spring 10, pull bar 6 can be pulled.Plus-minus screw 5 on the pull bar is just in time over against this folder back seat convex platform 21 at this moment.Direction towards spanner locking is rotated further spanner, because the effect of the cam principle of eccentrically weighted shaft 7, the end 51 of the plus-minus screw on the pull bar 6 compresses gradually with the boss 21 on the folding back seat, thereby reaches the effect with seat locking before and after the folder.Certainly the dynamics of the locking of spanner can be regulated by plus-minus screw.

Claims

1. improved type folder, by folding front stall (1), folding back seat (2) and rotating shaft (3) are formed, being somebody's turn to do folding front stall (1) and folding back seat (2) one sides is rotationally connected by this rotating shaft (3), should fold and be provided with the latching device that to realize this folding front stall and the locking of folding back seat between front stall (1) and folding back seat (2) opposite side, it is characterized in that, this latching device by two ends respectively rotational fixation in these folding front stall (1) one side two ears (11,12) eccentrically weighted shaft between (7), one end activity is set in the pull bar (6) of this eccentrically weighted shaft and is fixed in spanner (4) composition of this eccentrically weighted shaft end, this eccentrically weighted shaft position that is set in this pull bar (6) forms the eccentric little axle (71) that dwindles, this pull bar (6) middle part folds corresponding respectively slot part (61) and the boss of being convenient to snap in mutually (21) that be provided with of back seat (2) sidepiece with being somebody's turn to do, this pull bar is rotated with one and is convenient to the plus-minus screw (5) that the end tightens this boss, be provided with the spring (10) of tension between this pull bar (6) and this folding front stall, this spanner (4) also is provided with one and is convenient to the interlinked mechanism that spanner drive pull bar is opened between this pull bar (6).

2. improved type folder as claimed in claim 1 is characterized in that, this interlinked mechanism is that this pull bar (6) end is provided with one can interfere this spanner (4) thereby the spline boss (81) that end sides is rotated together when this spanner (4) is opened.

3. improved type folder as claimed in claim 1, it is characterized in that, this interlinked mechanism is, together be set in the connecting strap (8) of the little axle of this off-centre (71) with this pull bar (6), this connecting strap one side is fixed in this pull bar (6) end face by pin (9), and opposite side is provided with a spline boss (81) that can be defined in this spanner (4) end sides.

4. as claim 1,2 or 3 described improved type folder, it is characterized in that, this spanner (4) end is provided with two ears (44,45) that can be set in this eccentrically weighted shaft (7) two ends respectively, wherein the perforation of at least one ear has standstill face (41), and this eccentrically weighted shaft (7) end that should standstill face (41) is had spline plane (72).

5. improved type folder as claimed in claim 4 is characterized in that, this spanner (4) has the groove shape (43) of ccontaining this pull bar of energy (9).