CN202464047U

CN202464047U - Foldable joint locking device

Info

Publication number: CN202464047U
Application number: CN2012200765048U
Authority: CN
Inventors: 刘媛媛
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-03-05
Filing date: 2012-03-05
Publication date: 2012-10-03
Anticipated expiration: 2022-03-05

Abstract

The utility model discloses a foldable joint locking device, which comprises a first foldable joint and a second foldable joint, wherein one end of the first foldable joint and one end of the second foldable joint are hinged together through a hinge shaft; the other end of the first foldable joint is provided with an operating handle; the operating handle is provided with a jacking rod; an inclined surface is formed at a position on the second foldable joint which is opposite to the jacking rod; and an adjuster is vertically arranged on the inclined surface. The foldable joint locking device is borne directly by the handle, the joint is directly locked by a relevant part on the handle without using other movably connected middle force transmission parts when a user applies force to the handle, and another part is used for locking the joint, so that the foldable joint locking device has the advantages of simple structure, small size, low cost, easiness and convenience for operating, and saving in force.

Description

A kind of folding joint latching device

Technical field

The utility model relates to mechanical field, relates in particular to a kind of folding joint latching device.

Background technology

The folding bicycle volume after folding is little, is convenient to place and carry, and has brought facility for customer's use, therefore, receives increasing people and likes.And the technology of folded bicycle most critical is each employed folding device in folding position; The space makes the folded bicycle volume after folding minimum thereby can it maximally utilise everywhere; Whether whether whether folding process is convenient and swift, folding laborsaving, lock safe and reliable.Whether structure is simple satisfying under the prerequisite of above-mentioned functions, and whether process easy, and whether cost is cheap or the like, is to guarantee that can its employed folding device technology carry out the technical achievement conversion, has the key factor in more market.

The folding joint of prior art; Usually comprise and participate in two folding folded sheets, catch gear, adjusting parts, hinge etc.; Two folded sheets use hinge hinged usually, and catch gear is arranged on wherein on the folded sheet, regulate part and are arranged on another folded sheet; When two folded sheets closed up, catch gear was crossed the dead point through the principle of cam or connecting rod and two folded sheets is locked.Catch gear of the prior art mostly adopts and is installed on first folding joint, through the latch segment that parts such as eccentric shaft drive, removes to lock another folding joint by driving handle.

Like Chinese patent numbers 200820094915.3 with regard to disclosed a kind of pipe fitting folding joint and latching device thereof; Its technical scheme comprises first folding joint and second folding joint that two end faces are connected with pipe fitting; Both are hinged through hinge; There is the mount pad of auricle parallel to each other on fluted both sides in the middle of the first folding joint other end is installed with it; Have two holes that supply rotating shafts and eccentric shaft to pass through on two auricles parallel to each other, the compact heap that head end is provided with the inclined-plane places groove and hinged through rotating shaft and two auricles, and second folding joint is provided with another inclined-plane that the inclined-plane on the cooperation compact heap compresses in edge accordingly; Also being provided with drive element in addition is handle and elastic body; Driving handle is captiveed joint with eccentric shaft, and it can drive compact heap and rotate around the axis and produce lever force, and the lever force of generation will make the inclined-plane of compact heap head end compress corresponding another inclined-plane on second folding joint; Thereby first folding joint is locked at second folding joint, and elastic body plays reset response when unclamping drive element.

In the prior art scheme, from user's application of force to handle to joint locking, the centre will be through three or four parts at least, more than ten part through the transmission of a series of power, finally is applied to power on another folding joint, thereby folding device locked at most.Therefore, there is following shortcoming in prior art:

At first, the part of intermediate transfer strength is too much, and each part must design enough powerfully, otherwise can and then whole device scrapped from the weakest part generation rupture failure, influences service life and user's safety;

Secondly, because the transmission efficiency of power can not accomplish 100%, rubbed; The influence of factors such as manufacturing errors; The merit that the user applies in the transmittance process of power decays layer by layer, and the part that participate in to transmit is many more, and it is also just big more finally to reach the power that identical locking effect requires the user to apply; Therefore operation is also just required great effort more, makes troubles to the user;

The 3rd, part is too much, and it is excessive to take up room, and structure design difficulty in order to avoid part interfering with each other each other, can't accomplish during design all parts are hidden in joint inside, designs greatlyyer so entire product has only, and is not attractive in appearance;

The 4th, part is too much, has increased the cost of product, and the profit margin of enterprise diminishes, and is difficult competitive.

The utility model content

The technical matters that the utility model will solve is, a kind of folding joint latching device is provided, and this apparatus structure is simple, advantages of small volume, with low cost, easy and simple to handle laborsaving.

For solving the problems of the technologies described above, the utility model provides a kind of folding joint latching device, comprises first folding joint, second folding joint; One end of said first folding joint and second folding joint is hinged through hinge axis, and the other end of said first folding joint is provided with operating handle; Said operating handle is provided with top-fastening rod; The position that said second folding joint is relative with said top-fastening rod is provided with the inclined-plane, is vertically installed with regulating control on the said inclined-plane.

Preferred scheme is that said first folding joint also is provided with the mounting ear of perforate.Also be provided with on the said mounting ear and said operating handle bonded assembly Handle axis.When said first folding joint and the locking of second folding joint, the said Handle axis cross-sectional plane center of circle is vertical with said inclined-plane with the line in the said top-fastening rod cross-sectional plane center of circle.

Further preferred scheme also is provided with the elastic reset device on said first folding joint.

A kind of folding joint latching device of the utility model; Because the latching device of folding joint is directly born by handle; When user's application of force is given handle, directly with joint locking, need not pass through the middle power transmission part of other flexible connection and by another part joint locked at last by region of interest on the handle; Therefore, the utility model has following useful technique effect with respect to prior art:

At first, power transmission part in the middle of not having has been eliminated the possibility that whole joint is destroyed because middle certain power transmission part strength is not enough, as long as guarantee the intensity of handle, product just can not be destroyed inefficacy easily, and therefore, product function is reliable, safety;

Secondly, the user imposes on the power of handle, directly acts on joint by handle, has saved the merit of losing owing to the transmission of centre part power, therefore, reaches same locking effect, and the used strength of user is littler, operates comfortable;

The 3rd, because the latching device part is few, entire product can design littler compactlyer; Still fold when opening in no matter being to use, its volume is littler more attractive in appearance, can not look like above-mentioned prior art products; There is numerous parts to be exposed to outside the joint, not attractive in appearance when increasing volume yet; The distinctive handle reset function of the utility model makes the entire product design more reasonable, can not damage owing to running into foreign object after folding;

The 4th, product parts is few, when reducing the possibility that goes wrong, has reduced cost, has improved the price competitiveness of enterprise product, is more conducive to the conversion of its technical achievement.

Description of drawings

Fig. 1 is the structural representation of first kind of embodiment of a kind of folding joint latching device of the utility model;

Fig. 2 is the scheme drawing of first kind of embodiment shown in Figure 1 in open mode;

Fig. 3 is the structural representation that first kind of embodiment shown in Figure 1 is applied to the folding bicycle standpipe;

Fig. 4 is the structural representation of second kind of embodiment of a kind of folding joint latching device of the utility model;

Fig. 5 is the scheme drawing of second kind of embodiment shown in Figure 4 in open mode;

Fig. 6 is the open mode scheme drawing that second kind of embodiment shown in Figure 4 is applied to folding bicycle frame.

The specific embodiment

Be elaborated below in conjunction with the preferred implementation of accompanying drawing to the utility model.

Embodiment 1:

Fig. 1 to Fig. 2 is structural representation and the open mode scheme drawing of first kind of embodiment of a kind of folding joint latching device of the utility model, and Fig. 3 is the scheme drawing that first kind of embodiment of the utility model is used for the folding bicycle standpipe.

To shown in Figure 3, a kind of folding joint latching device of the utility model comprises first folding joint 1 like Fig. 1; Second folding joint 2, an end of said first folding joint 1 and second folding joint 2 is hinged through hinge axis 3, can rotate around hinge axis 3; First folding joint is provided with two mounting ear 1-1 at the other end, and the centre has groove all to have a hole with handle installation axle 5 to hold on operating handle 4, the two mounting ear 1-1; First folding joint 1 is hinged through Handle axis 5 with operating handle 4; Operating handle 4 can be thorny arbor 5 rotate, have a top-fastening rod 6 to captive joint with it (part that can regard handle as) on the operating handle 4, second folding joint 2 and top-fastening rod 6 have an inclined-plane 2-1 on the relative position; Said inclined-plane 2-1 vertically is equipped with the set screw 7 of adjustable connector locking elasticity; When joint uses, close up second folding joint 2, rotating operation handle 4 is to locking dead center position A; The top-fastening rod 6 of captiveing joint with operating handle 4 holds out against joint through holding out against set screw 7 locked, and dead center position A is the center of circle of Handle axis 5 cross-sectional planes and the circle center line connecting and the vertical position of 2-1, the second folding joint inclined-plane of top-fastening rod 6 cross-sectional planes; When folding, contrarotation operating handle 4 rotates the joint release second folding joint 2 and can realize folding.Folding back unclamp operation handle 4, operating handle 4 is returned to original position under the effect of Flexible Reset body 8, touch the side of first folding joint, 1 end face institute bonded assembly pipe fitting 9, helps dwindling of volume after folding.

Embodiment 2:

Fig. 4 to Fig. 5 is structural representation and the open mode scheme drawing of second kind of embodiment of a kind of folding joint latching device of the utility model, and Fig. 6 is the open mode scheme drawing that second kind of embodiment of the utility model is applied to folding bicycle frame.

To shown in Figure 6, a kind of folding joint latching device of the utility model comprises first folding joint 1 like Fig. 4; Second folding joint 2, an end of said first folding joint 1 and second folding joint 2 is hinged through hinge axis 3, and second folding joint 2 is provided with two mounting ear 2-2 at the other end; Groove is arranged to hold operating handle 4 in the middle of second folding joint 2; It is hinged through Handle axis 5 with operating handle 4 with handle installation axle 5, the second folding joints 2 all to have a hole on the two mounting ear 2-2, and operating handle 4 can rotate by thorny arbor 5; There is a top-fastening rod 6 to captive joint (part that can regard handle as) with it on the operating handle 4; First folding joint 1 and top-fastening rod 6 have an inclined-plane 3-3 on the relative position, and said inclined-plane 3-3 vertically is equipped with the set screw 7 of adjustable connector locking elasticity, when joint uses; Close up first folding joint 1; Rotating operation handle 4 is to locking dead center position A, and the top-fastening rod 6 of captiveing joint with operating handle 4 holds out against joint through holding out against set screw 7 locked, and dead center position A is the Handle axis 5 cross-sectional plane centers of circle and top-fastening rod 6 cross-sectional plane center of circle lines and the vertical position of first folding joint, 1 inclined-plane 3-3; When folding, contrarotation operating handle 4 rotates the joint release first folding joint 1 and can realize folding.Folding back unclamp operation handle 4, operating handle 4 touch second folding joint, 1 medial surface under the effect of Flexible Reset body 8, help dwindling of volume after folding.

The utility model not only can be applicable to the standpipe and the vehicle frame of folding bicycle, can also be applied in other physical constructions that need carry out folding joint locking, for example: fields such as wheelchair, instrument, furniture.

In addition; According to the requirement of product safety standard, used folding joint will have and prevents that joint from receiving the foreign object effect and the function of the safety device that throws open on the folded bicycle, and technique scheme generally is employed in and adds safe button hook or the suitable position of handle on the pipe fitting 9 and add safety component and rotate with the restriction handle; When opening joint; Must open corresponding safety device earlier, turning handle can be opened joint then.Because it is a variety of to realize that the concrete form of this function has, the utility model does not indicate concrete safety device.

The utility model mainly focuses on the dependency structure of the locking principle of such scheme; Every concrete locking mechanism is with above-mentioned identical or similar; No matter and the concrete structure of its safety device or other additional function how, all belong to the category of the technical scheme of the utility model.

Need to prove at last; The above is merely the preferred embodiment of the utility model; Rather than, anyly be equal to replacement or corresponding improvement to what the utility model technical characterictic did to the qualification of the utility model technical scheme, still within the protection domain of the utility model.

Claims

1. a folding joint latching device comprises first folding joint, second folding joint; One end of said first folding joint and second folding joint is hinged through hinge axis, it is characterized in that,

The other end of said first folding joint is provided with operating handle; Said operating handle is provided with top-fastening rod; The position that said second folding joint is relative with said top-fastening rod is provided with the inclined-plane, is vertically installed with regulating control on the said inclined-plane.

2. a kind of folding joint latching device as claimed in claim 1 is characterized in that said first folding joint also is provided with the mounting ear of perforate.

3. a kind of folding joint latching device as claimed in claim 2 is characterized in that, also is provided with on the said mounting ear and said operating handle bonded assembly Handle axis.

4. a kind of folding joint latching device as claimed in claim 3 is characterized in that, when said first folding joint and the locking of second folding joint, the said Handle axis cross-sectional plane center of circle is vertical with said inclined-plane with the line in the said top-fastening rod cross-sectional plane center of circle.

5. a kind of folding joint latching device as claimed in claim 1 is characterized in that, also is provided with the elastic reset device on said first folding joint.

6. a kind of folding joint latching device as claimed in claim 1 is characterized in that said regulating control is a set screw.