CN201411997Y

CN201411997Y - Hinge

Info

Publication number: CN201411997Y
Application number: CN2009200761670U
Authority: CN
Inventors: 李江; 王亚德; 章明高; 朱品强
Original assignee: WAROM GROUP CO Ltd
Current assignee: Huarong Technology Co Ltd
Priority date: 2009-06-12
Filing date: 2009-06-12
Publication date: 2010-02-24
Anticipated expiration: 2019-06-12

Abstract

The utility model discloses a hinge, which comprises an upper hinge and a lower hinge, wherein the upper hinge is arranged on a shell cover; the lower hinge is arranged on a shell body; the upper hinge is fixedly provided with a pivot, and an anti-drop piece is fixedly arranged along the radial direction of the pivot; the lower hinge is provided with a through hole; the openings at the two sides of the through hole are round and are adaptive with the pivot, so that the pivot can rotate in the through hole or slide along the direction of an elliptic long shaft; a circle of groove is arranged onthe inner wall of the through hole, and the groove is adaptive with the anti-drop piece so that the anti-drop piece can rotate or slide along with the pivot; a notch is also arranged at the lower part of the opening at one side of the through hole; for the notch, after the upper hinge reversely rotates an assembling angle oppositely to the lower hinge along the opening direction in using state ofthe upper hinge, the pivot of the upper hinge and the anti-drop piece are adaptive with the shape of the notch. Therefore, the hinge in the utility model can ensure the flame-proof clearance betweenthe flame-proof shell body and the shell cover and can prevent the upper hinge and the lower hinge from being dropping out mutually; in addition, the manufacturing process is simple.

Description

Hinge

Technical field

The utility model relates to explosion-proof field, particularly a kind of hinge.

Background technology

In explosion-proof electric apparatus, the application of hinge is very extensive, and common hinge as shown in Figure 1.This kind hinge is made up of four parts altogether, is respectively hinge 1 ', lower jaw 2 ', bearing pin 3 ' and cottor pin 4 ', and this hinge has following shortcoming:

1) component are many, and cost is higher.

2) go up the lower jaw high directivity, if oppositely use then go up hinge and deviate from easily.

3) go up between lower jaw and do not have the longitudinally-moving amount, be difficult to guarantee the flame proof gap between flame proof housing and cap, and higher to requirement on machining accuracy.

The utility model content

The technical problems to be solved in the utility model is in order to go up the defective that the longitudinally-moving amount is easily deviate from and do not had to lower jaw in the hinge that overcomes prior art, a kind of anticreep hinge with longitudinally-moving amount to be provided.

The utility model solves above-mentioned technical problem by following technical proposals:

A kind of hinge, its characteristics be, it comprises that one is installed in last hinge and on the cap and is installed in lower jaw on the housing,

Should go up on the hinge and be installed with a pivot, the footpath of this pivot upwards is installed with an anticreep spare;

This lower jaw has a through hole, the both-side opening of this through hole is oval and adaptive this pivot rotates therein or this oval-shaped long axis direction of edge slides, the inwall of this through hole is provided with the groove that adaptive this anticreep spare of a circle rotates or slides with this pivot therein, the bottom of a wherein side opening of this through hole also is provided with breach, this breach is set to: when hinge on this relatively this lower jaw along this hinge behind the reverse rotation of opening direction one angle of assembling under the user mode, shape of the pivot of hinge and anticreep spare and this breach is suitable on this.

Wherein, this anticreep spare comprises and is arranged at one first projection and the second semi-circular projection that this pivot directly makes progress, and this first and second projection is oppositely arranged.

Wherein, this angle of assembling is 60 °.

Positive progressive effect of the present utility model is: owing to have certain longitudinally-moving amount between the last lower jaw in this hinge, so this hinge can guarantee the flame proof gap between flame proof housing and cap; And, because the setting of anticreep spare in this hinge makes that last lower jaw can not deviate from the normal use of this hinge after installation; In addition, this hinge can adopt the moulding of advanced technologies one-step casting, and manufacturing process is simple.

Description of drawings

Fig. 1 is the structural representation of existing hinge.

Fig. 2 is a structural representation of going up hinge in the hinge of the present utility model.

Fig. 3 is the structural representation of lower jaw in the hinge of the present utility model.

Fig. 4 is the assembling schematic diagram of hinge of the present utility model.

Fig. 5 is the closed schematic diagram of hinge of the present utility model under user mode.

Fig. 6 opens schematic diagram for hinge of the present utility model under user mode.

The specific embodiment

Provide the utility model preferred embodiment below in conjunction with accompanying drawing, to describe the technical solution of the utility model in detail.

Hinge of the present utility model comprises a hinge 1 and a lower jaw 2 on one, and as shown in Figure 5, last hinge 1 for example is installed on the flame proof cap 3, and lower jaw 2 for example is installed on the flame proof housing 4.

Shown in Fig. 2,4,5, should go up on the hinge 1 and be installed with a pivot 11, the footpath of this pivot 11 upwards is installed with an anticreep spare, in the present embodiment, this anticreep spare comprises one first projection 12 and second a semi-circular projection 13, and this first and

second projection

12,13 is oppositely arranged in the both sides of pivot 11 respectively.Shown in Fig. 3-6, this lower jaw 2 has a through hole 21, the both-side opening of this through hole 21 is oval and adaptive this pivot 11 rotates therein or this oval-shaped long axis direction of edge slides, the inwall of this through hole 21 is provided with the groove 21d that adaptive this anticreep spare of a circle rotates or slides with this pivot 11 therein, the bottom of a wherein side opening of this through hole 21 also is provided with breach, this breach is set to: after 1 relative this lower jaw 2 of hinge on this rotates an angle of assembling θ along reverse (being the direction shown in the arrow among Fig. 4) of opening direction of this hinge under user mode, and the pivot 11 of hinge 1 and anticreep spare 12 on this, 13 is suitable with the shape of this breach.Particularly, in the present embodiment, shown in Fig. 4-5, because anticreep spare comprises first projection 12 and semiorbicular second projection 13, above-mentioned breach also just correspondingly comprises 21c ', 21c " and 21c " ' three part.Wherein, outline line shown in the Reference numeral 21a is the shape of a side opening that is not provided with breach of through hole 21, outline line shown in the Reference numeral 21b is the shape of groove 21d, and the outline line shown in the Reference numeral 21c is the shape of a side opening that is provided with breach of through hole 21.

The assembling mode of this hinge is as shown in Figure 4: will go up hinge 1 relative lower jaw 2 earlier behind reverse (be in Fig. 4 direction arrow shown in) rotation one angle of assembling θ that open direction of this hinge under user mode, wherein in the present embodiment, this angle of assembling θ is chosen as 60 °, to go up the pivot 11 and the anticreep spare 12 of hinge 1 then, 13 pack into from a side opening that is provided with breach of through hole 21, until anticreep spare 12,13 snap in till the groove 21d adaptedly, the position under the hinge 1 cycle normal operating condition will be gone up afterwards again, lower jaw 1 will be gone up at last, 2 are installed in respectively on flame proof housing 4 and the cap 3 and get final product.Because anticreep spare 12,13 only after angle of assembling θ is crossed in last hinge 1 relative lower jaw 2 reverse rotations, can pack into or deviate from from a side opening that is provided with breach of through hole 21, yet, under the normal operating condition of this hinge, should go up hinge 1 when opening the flame proof cap always rotates along the direction shown in the arrow among Fig. 5 (opposite with the direction shown in the arrow among Fig. 4), being somebody's turn to do upward during the closure cap, hinge 1 at most also can only rotate to the complete closure state of hinge shown in Figure 5 according to the direction shown in the arrow among Fig. 4 and can't be further rotated, therefore, anticreep spare 12,13 rotate never again or slide into the position of mating fully with notch geometry and deviate from, but only can be limited to activity among the groove 21d reliably, just realized the anti-drop function of hinge of the present utility model thus.

In addition, as shown in Figure 6, last hinge 1 can rotate in the through hole 21 of lower jaw 2 neatly by pivot 11, realizes the opening action of flame proof cap; Last hinge 1 can also slide up and down in the through hole 21 of lower jaw 2 neatly, be that pivot 11 slides along oval-shaped major axis in the outline line shown in the 21a, anticreep spare 12,13 slides along oval-shaped major axis in the outline line 21b of groove 21d simultaneously, realize going up certain longitudinally-moving amount of 1,2 on lower jaw thus, thereby guarantee the flame proof gap between flame proof housing 4 and the cap 3.

In sum, hinge of the present utility model can guarantee the flame proof gap between flame proof housing and cap, prevent that simultaneously lower jaw from deviating from mutually, and manufacturing process is simple.

Though more than described the specific embodiment of the present utility model, but those skilled in the art is to be understood that, these only illustrate, and under the prerequisite that does not deviate from principle of the present utility model and essence, can make numerous variations or modification to these embodiments.Therefore, protection domain of the present utility model is limited by appended claims.

Claims

1, a kind of hinge is characterized in that, it comprises that one is installed in last hinge and on the cap and is installed in lower jaw on the housing,

2, hinge as claimed in claim 1 is characterized in that, this anticreep spare comprises and is arranged at one first projection and the second semi-circular projection that this pivot directly makes progress, and this first and second projection is oppositely arranged.

3, hinge as claimed in claim 1 is characterized in that, this angle of assembling is 60 °.