CN202249359U

CN202249359U - Intraelastic multi-directional positioning plastic hinge structure

Info

Publication number: CN202249359U
Application number: CN2011203282410U
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: 2012-05-30
Anticipated expiration: 2021-09-03

Abstract

The utility model discloses an intraelastic multi-directional positioning plastic hinge structure which comprises a hinge core and a hinge ring, wherein a cut is arranged in the hinge core and divides the hinge core into a plurality of springing areas, bulges are arranged at the outer sides of the springing areas, the outer profiles of the cross sections of the bulges are arc-shaped, a plurality of grooves are formed in the inner wall of the hinge ring and are arranged longitudinally, the cross sections of the grooves are arc-shaped, the hinge core is sleeved in the hinge ring, and the bulges and the grooves are engaged with one another. With the adoption of a matching mode of the hinge core and the hinge ring, a connecting structure is greatly simplified, in addition, the control and the modification of key sizes during part manufacturing are facilitated; springs and iron shafts in a part of similar device structures are eliminated, and the production cost is reduced; and the springing areas on the hinge core are formed by grooves or closed strip punched holes other than open gaps, the deformation of the hinge core during injection molding is reduced, and the matching precision is finally ensured.

Description

The plastic hinge structure of the multidirectional location of a kind of internal elastic type

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 products, particularly plastics amalgamation type toy, the building blocks type toy.

Background technology

The rotational positioning hinge arrangement of existing plastic toy mainly adopts two kinds of designs.A kind of is to adopt built-in spring, realizes rotational positioning 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; Again through axially or clutch structure radially realize rotational positioning; This kind design is higher to the required precision of injection mo(u)lding 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 prior art, the utility model provides the plastic hinge structure of the multidirectional location of internal elastic type a kind of simple in structure, with low cost.

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

The plastic hinge structure of the multidirectional location of a kind of internal elastic type comprises hinge core and hinge ring; Said hinge core is provided with otch, and said otch makes the hinge core form several springing zones, and the outline that the outside, said springing zone is provided with cross section is the convexity of arc; Said hinge ring inwall is provided with some vertical arrangements and cross section is the groove of arc; Said hinge core retainer plate is loaded in the hinge ring, and protruding and the mutual interlock of groove.

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 internal elastic type of the utility model application directly adopts hinge core and hinge to encircle has been simplified syndeton 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 in springing zone is to adopt the bar shaped of groove or sealing perforation to form on the hinge core, rather than open breach, has so just reduced the deformation that the hinge core 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 state 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 core of the utility model;

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

Fig. 6 is a kind of structural representation of preferred implementation of the hinge ring of the utility model;

Fig. 7 is the structural representation of the embodiment 1 of the utility model;

Fig. 8 is the structural representation of the embodiment 2 of the utility model;

Fig. 9 is the structural representation of the embodiment 3 of the utility model.

The specific embodiment

With reference to Fig. 1～Fig. 6, the plastic hinge structure of the multidirectional location of a kind of internal elastic type comprise hinge core 1 and hinge ring 2, and the two adopts all the preferable plastics of elasticity to process; Said hinge core 1 is provided with otch 11, and said otch 11 makes hinge core 1 form several springing zones 12, and the outline that 12 outsides, said springing zone are provided with cross section is the convexity 13 of arc; Said hinge encircles that 2 inwalls are provided with some vertical arrangements and cross section is the groove 21 of arc; Said hinge core 1 is set in the hinge ring 2, and convexity 13 and groove 21 mutual interlocks.

Below mainly the operating principle of this embodiment is briefly introduced with reference to Fig. 2, after the hinge core 1 of the utility model was set in hinge ring 2, the convexity 13 of hinge core 1 and the groove 21 mutual interlocks of hinge ring realized that hinge core 1 encircles 2 mutual location with cutting with scissors; Because of hinge core 1 is provided with the plasticity that otch 11 and plastics itself are had; Under the effect of moment of face; The extruding that convexity 13 receives groove 21 will impel above-mentioned springing zone 12 to produce elastic deformations; Thereby realize that protruding 13 slide on the groove face of groove 21, promptly realize the rotation between hinge core 1 and hinge ring 2 are relatively; When the summit when protruding 13 gets into another groove 21, springing zone 12 will restore to the original state, and convexity 13 is recovered the state of interlock with groove 21, thereby realize reorientating of hinge core 1 and hinge ring 2.

As the preferred implementation of technique scheme, with reference to Fig. 3～Fig. 5, the otch 11 of said hinge core 1 is the bar shaped perforation of one or more sealings, or is two or more grooves; The generation in springing zone 12 is to adopt the bar shaped perforation or the groove of sealing to cut branch rather than open breach on the hinge core 1, has so just reduced the deformation that the hinge core produces in injection moulding process, has finally guaranteed quality of fit.Hinge core 1 shown in Figure 3 is a cylinder, and the otch 11 on it is the bar shaped perforation of a sealing, and perforation runs through hinge core 1, makes hinge core 1 both sides form springing zone 2, and this kind embodiment is applicable to the hinge arrangement that volume is less; Hinge core 1 shown in Figure 4 is a torus, and hinge core 1 is provided with the bar shaped otch 11 of arrangement arranged side by side, and 11 at otch forms springing zone 12, and this kind embodiment is applicable to the hinge arrangement that volume is bigger than normal; Hinge core 1 shown in Figure 5 is a torus, and the otch that is respectively equipped with groove shaped 11 of both sides, the otch 11 of groove shaped will cut with scissors core 1 and be divided into two springing zones 2, and this kind embodiment is applicable to the hinge arrangement that volume is bigger.

As the improvement of technique scheme, for strengthening the connection dynamics of hinge arrangement, said protruding 13 are bar shaped.

Following with reference to Fig. 7～Fig. 9, the hinge core 1 and the hinge of the utility model are encircled 2 the mode that cooperatively interacts, do further to introduce.

Fig. 7 is the structural representation of embodiment 1, and present embodiment adopts the fit system of a core one ring.

Fig. 8 is the structural representation of embodiment 2, and present embodiment adopts the fit system of a ring two cores.

Fig. 9 is the structural representation of embodiment 3, and present embodiment adopts the fit system of a core two rings.

Certainly, the utility model is not limited to above embodiment, as long as the design concept that its connected mode 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 internal elastic type is characterized in that: comprise hinge core (1) and hinge ring (2); Said hinge core (1) is provided with otch (11), and said otch (11) makes hinge core (1) form several springing zones (12), and the outline that the outside, said springing zone (12) is provided with cross section is the convexity (13) of arc; Said hinge ring (2) inwall is provided with some vertical arrangements and cross section is the groove (21) of arc; Said hinge core (1) is set in the hinge ring (2), and protruding (13) and groove (21) interlock each other.

2. the plastic hinge structure of the multidirectional location of a kind of internal elastic type according to claim 1 is characterized in that: said otch (11) is the bar shaped perforation of one or more sealings.

3. the plastic hinge structure of the multidirectional location of a kind of internal elastic type according to claim 1 is characterized in that: said otch (11) is two or more grooves.

4. the plastic hinge structure of the multidirectional location of a kind of internal elastic type according to claim 1 is characterized in that: said convexity (13) is bar shaped.