CN202228522U

CN202228522U - Externally springing type multi-direction location plastic hinge structure

Info

Publication number: CN202228522U
Application number: CN2011203282425U
Authority: CN
Inventors: 吴士芳
Original assignee: ZHUHAI HONGFENG ELECTRONIC PLASTIC TOYS CO Ltd
Current assignee: ZHUHAI HONGFENG ELECTRONIC PLASTIC TOYS CO Ltd
Priority date: 2011-09-03
Filing date: 2011-09-03
Publication date: 2012-05-23
Anticipated expiration: 2021-09-03

Abstract

The utility model discloses an externally springing type multi-direction location plastic hinge structure, which comprises a hinge core and a hinge ring. A plurality of vertically distributed grooves are arranged on the hinge core, the outline of the cross section of each groove is an arc, the hinge ring is provided with a plurality of notches which divide the hinge ring into a plurality of springing areas, a plurality of protrusions are arranged on the inner sides of the springing areas, and the outline of the cross section of each protrusion is an arc. The hinge core is sleeved in the hinge ring, and the grooves are meshed with the protrusions. The plastic hinge structure adopts matching of the hinge core and the hinge ring, greatly simplifies the connection structure and simultaneously facilitates control and modification of key size in the manufacture process of parts. The springing areas on the hinge ring are not open notches and are formed by penetrating holes through closed strips or cutting the grooves, so that deformation of the hinge ring in an injection molding process is reduced, and finally matching accuracy is ensured. Use of springs and iron shafts in some structures of similar devices is omitted, and production cost is reduced.

Description

The plastic hinge structure of the multidirectional location of a kind of outer bullet formula

Technical field

The utility model relates to hinge through structure and the joint rotation structure among the robot toy in the rotary positioning structure between the hinge member in the plastic article, particularly plastics amalgamation type toy, the building blocks type toy.

Background technique

The rotating position hinge structure of existing plastic toys mainly adopts two kinds of designs.A kind of is to adopt built-in spring, realizes rotating position through axial clutch structure, its complex structure of this kind design, and the quantity of required part is more, thereby cost is higher.Another kind is to utilize the elasticity of plastics self to replace spring; Realize rotating position through clutch structure axial or radially again; This kind design is higher to the required precision of molding and forming because of vital part, and the related size that relates to is more, has increased the manufacture control cost.

Summary of the invention

In order to overcome the deficiency of existing technology, it is a kind of simple in structure that the utility model provides, the plastic hinge structure of the multidirectional location of outer bullet formula with low cost.

The utility model solves the technological scheme that its technical problem adopted:

The plastic hinge structure of the multidirectional location of a kind of outer bullet formula comprises hinge core and hinge ring; The external frame that said hinge core is provided with some vertical arrangements and cross section is the groove of arc; Said hinge is equipped with some otch, and said otch makes hinge ring form some springing zone, and the external frame that inboard, said springing zone is provided with some cross sections is the convexity of arc; Said hinge core retainer plate is loaded in the hinge ring, and groove and protruding interlock each other.

A kind of preferred as technique scheme, said otch is the bar shaped perforation of one or more sealings.

Another kind as technique scheme is preferred, and said otch is two or more grooves.

As the improvement of technique scheme, for strengthening connection stability between hinge core and the hinge ring, said convexity is bar shaped.

Compared with prior art, the fit form that the plastic hinge structure of the multidirectional location of a kind of outer bullet formula of the utility model application directly adopts hinge core and hinge to encircle has been simplified linkage structure greatly, is easy to the control and the modification of critical size in the part manufacture process simultaneously; Cancel spring and the use of iron axle in the part same device structure, reduced cost of production.The generation that the hinge ring is gone up the springing zone is to adopt the bar shaped of groove or sealing perforation to form, rather than open breach, has so just reduced the deformation that the hinge ring produces in injection moulding process, has finally guaranteed quality of fit.

In addition, owing to the leitungskern part has only hinge core and hinge ring, satisfy the different demands of different product to material and size so can independently make formation standardized element series.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further specified.

Fig. 1 is the sectional view of the utility model cross section;

Fig. 2 is the phase diagram of its cross section in the rotation process of the utility model;

Fig. 3 is the structural representation of first kind of preferred implementation of the hinge core of the utility model;

Fig. 4 is the structural representation of second kind of preferred implementation of the hinge ring of the utility model;

Fig. 5 is the structural representation of the third preferred implementation of the hinge ring of the utility model;

Fig. 6 is the embodiment's 1 of the utility model a structural representation;

Fig. 7 is the embodiment's 2 of the utility model a structural representation;

Fig. 8 is the embodiment's 3 of the utility model a structural representation;

Fig. 9 is the sectional view of Fig. 8.

Embodiment

With reference to Fig. 1～Fig. 5, the plastic hinge structure of the multidirectional location of a kind of outer bullet formula comprises hinge core 1 and hinge ring 2; The external frame that said hinge core 1 is provided with some vertical arrangements and cross section is the groove 11 of arc; Said hinge ring 2 is provided with some otch 21, and said otch 21 will cut with scissors ring 2 and be divided into some springing zone 22, and the external frame that 22 inboards, said springing zone are provided with some cross sections is the convexity 23 of arc; Said hinge core 1 is set in the hinge ring 2, and groove 11 and protruding 23 mutual interlocks.

Below mainly the working principle of this mode of execution is briefly introduced with reference to Fig. 2, after the hinge core 1 of present embodiment was set in hinge ring 2, the groove 11 of hinge core 1 and the convexity 23 mutual interlocks of hinge ring realized that hinge core 1 encircles 2 mutual location with cutting with scissors; Be provided with the plasticity of otch 21 and the institute of plastics tool own because of hinge ring 2; Under the effect of external force moment of torsion; The extruding that convexity 23 receives groove 11 will impel above-mentioned springing zone 22 to produce resiliently deformables; Thereby realize that protruding 23 slide on the groove face of groove 11, promptly realize the rotation between hinge core 1 and hinge ring 2 are relatively; When the summit when protruding 13 gets into another groove 11, springing zone 22 will restore to the original state, and convexity 23 is recovered the state of interlock with groove 11, thereby realize reorientating of hinge core 1 and hinge ring 2.

As the preferential mode of execution of technique scheme, mainly with reference to Fig. 4～Fig. 5, the otch 21 of said hinge ring 2 is the bar shaped perforation of two or more sealings, or is two or more grooves.Hinge ring 2 shown in Figure 4, both sides are equipped with the otch 21 of two sealings on it, and the otch 21 of the same side makes on the ring wall of hinge ring 2 and form springing zone 22, and this kind mode of execution is applicable to the hinge structure that volume is less; Be respectively equipped with the otch 21 of a groove shaped on 2 liang of madial walls of hinge ring shown in Figure 5, the otch 21 of groove shaped will cut with scissors ring 2 and be divided into two springing zones 22, and this kind mode of execution is applicable to the hinge structure that volume is bigger.

As the improvement of technique scheme, for strengthening the connection dynamics of hinge structure, said protruding 23 are bar shaped.

Following knot encircles 2 the mode that cooperatively interacts with reference to Fig. 6～Fig. 9 to the hinge core 1 and the hinge of the utility model, does further to introduce.

Fig. 6 is embodiment 1 a structural representation, and present embodiment adopts the fit system of a core one ring.

Fig. 7 is embodiment 2 a structural representation, and present embodiment adopts the fit system of a core two rings.

Fig. 8 and Fig. 9 are embodiment 3 structural representation, and present embodiment adopts the fit system of a ring multicore.

Certainly, the utility model is not limited to above mode of execution, as long as the design concept that its Placement that adopts is the utility model to be adopted is identical, all should belong to equivalent technical solutions and within the protection domain of the utility model.

Claims

1. the plastic hinge structure of the multidirectional location of outer bullet formula is characterized in that: comprise hinge core (1) and hinge ring (2); The external frame that said hinge core (1) is provided with some vertical arrangements and cross section is the groove (11) of arc; Said hinge ring (2) is provided with some otch (21), and said otch (21) makes hinge ring (2) form some springing zones (22), and the external frame that (22) inboard, said springing zone is provided with some cross sections is the convexity (23) of arc; Said hinge core (1) is set in the hinge ring (2), and groove (11) and protruding (23) interlock each other.

2. the plastic hinge structure of the multidirectional location of a kind of outer bullet formula according to claim 1 is characterized in that: said otch (21) is the bar shaped perforation of two or more sealings.

3. the plastic hinge structure of the multidirectional location of a kind of outer bullet formula according to claim 1, it is characterized in that: said otch (21) is two or more grooves.

4. the plastic hinge structure of the multidirectional location of a kind of outer bullet formula according to claim 1 is characterized in that: said convexity (23) is bar shaped.