CN201185142Y

CN201185142Y - Explosion-proof push button head

Info

Publication number: CN201185142Y
Application number: CNU2008200567021U
Authority: CN
Inventors: 李江; 邝仕勇; 邓江
Original assignee: WAROM GROUP CO Ltd
Current assignee: WAROM GROUP CO Ltd
Priority date: 2008-03-28
Filing date: 2008-03-28
Publication date: 2009-01-21
Anticipated expiration: 2018-03-28

Abstract

The utility model relates to an anti-explosion button head which comprises a cover (10) and a body (20) connected with the cover (10); an empty chamber consisting of the cover (10) and the body (20) also comprises an operation part at the upper part of the empty chamber and a baffle (91) at the lower part of the empty chamber; a first spring (40), a retainer ring (60), a telescopic seal ring (50), a movable shaft (70) and a second spring (80) are arranged under the operation part (30) in turn; the utility model also comprises a fixing mechanism (90); the fixing mechanism (90) is arranged under the movable shaft (70) and leads the contact surface between the telescopic seal ring (50) and the movable shaft (70) to be in a close contact structure with the contact surface between the telescopic seal ring (50) and the cover (10) or the body (20). The body and the cover as well as the retainer ring and a contact are effectively connected together by the connection and transition of the telescopic seal ring; simultaneously, the clearance between the body and the cover as well as between the retainer ring and the contact are effectively screened, thus realizing better protection performance.

Description

The explosion-proof button head

Technical field

The utility model relates to a kind of explosion-proof button head, relates in particular to the operation part structure of this explosion-proof button head.

Background technology

The explosion-proof button head is a kind of being used in the explosion-proof industry ex electrical product, is assemblied in a kind of press-button structure of the electric middle operation inner button of guidance panel or other light fixtures.

By Fig. 1, Fig. 2 as seen: (cover 1 by standing part as explosion-proof button is first, body 2) and activity operations part (movable axis 3, spring 4, sealing ring 5) form, standing part plays the effect that button is installed and protected, and operation part is the effect of button activity operation inner member.

Sealing ring is to contact with movable axis with body (or lid) by the tension force of self and the elastic force of spring in this structure, thus the protective action of playing, and the motion parts and the gap between the standing part of button head button head when being operated can not effectively prevent into water.

Summary of the invention

The utility model technical issues that need to address have provided a kind of explosion-proof button head, are intended to solve the above problems.

In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:

The utility model comprises: a lid, a body that joins with lid; In the cavity that described lid and body are formed, also comprise one at an upper portion thereof functional unit, at the baffle plate of its underpart; Under functional unit, settle one first spring, compacting ring, flexible sealing ring, movable axis, second spring successively; Also comprise a fixed mechanism; Described fixed mechanism is placed under the movable axis and makes the contact-making surface of flexible sealing ring and movable axis and the contact-making surface of flexible sealing ring and lid or body is to connect airtight and touches structure.

Compared with prior art, the beneficial effects of the utility model are: connection and transition by flexible sealing ring, effectively body and lid, compacting ring and contact are fused, the while shield effectively they between the gap, realized good barrier propterty.

Description of drawings

Fig. 1 is an explosion-proof button header structure schematic diagram in the prior art;

Fig. 2 is the structural representation after Fig. 1 button is pressed;

Fig. 3 is the utility model exploded perspective view.

Fig. 4 adopts the utility model and other industrial electrical equipments to be used schematic diagram, among the figure: operating point and direction 100, pressure button cover 101, sealing gasket 102, locking nut 103, electrical equipment body wall 104.

Embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:

As seen from Figure 3: the utility model comprises: 10, one on lid with cover 10 bodies that join 20; In the cavity that described lid 10 and body 20 formed, also comprise one at an upper portion thereof functional unit 30, at the baffle plate 91 of its underpart; Settle one first spring 40, compacting ring 60, flexible sealing ring 50, movable axis 70, second spring 80 for 30 times successively at functional unit; Also comprise a fixed mechanism 90; Described fixed mechanism 90 is placed in movable axis 70 times and makes the contact-making surface of flexible sealing ring 50 and movable axis 70 and the contact-making surface of flexible sealing ring 50 and lid 10 or body 20 is to connect airtight and touches structure;

Described functional unit 30 is forward type or tapered end type or mushroom head dummy or selection type;

Described lid 10 adopts buckle structure with being connected of body 20.

Among the figure: sealing gasket 102, locking nut 103.

The utility model is between the buckle structure of body and lid, be equipped with flexible sealing ring between compacting ring and the movable axis, the buckle of body and lid is provided with the effect anchor point, behind the correct chucking of the buckle of body and lid, the edge of flexible sealing ring one end is tightened, and forms one with body and lid; Compacting ring and movable axis also are provided with effective anchor point, when the stressed operation of functional unit promotes compacting ring, compacting ring oppositely is designed to an end of the flexible sealing ring of arc transition and tightly embraces compacting ring, stressed tight more, it is good more to seal, because the opposite force of the contained spring another side of pushing down flexible sealing ring one end tightly; Because fixed mechanism is fixed together flexible sealing ring of movable axis and compacting ring tightly, make it form one, like this, connection and transition by flexible sealing ring, effectively body and lid, compacting ring and movable axis are fused, simultaneously good barrier propterty has been realized in the gap between they of shielding effectively.

The utility model is that button activity partly is split up into movable axis and functional unit, the new function that produces is, functional unit can have multiple pattern (as forward type, tapered end type, mushroom head dummy, selection type) and not influence the hermetically-sealed construction and the barrier propterty of button inside.

As seen from Figure 4: after whole pressure button cover assembles self, be used as an individual components and other industrial electrical equipments, by locking nut with firm being installed on the electric equipment products that are used with it of pressure button cover, tack by the control button cover outer surface, the spring stress that is connected with tack promotes compacting ring, thereby the drive baffle plate, the inner explosion-proof button fuse of baffle plate crawl control apparatus is realized the button command function.

Claims

1. an explosion-proof button head comprises: a lid (10), a body (20) that joins with lid (10); In the cavity that described lid (10) and body (20) are formed, also comprise one at an upper portion thereof functional unit (30), at the baffle plate (91) of its underpart; It is characterized in that: under functional unit (30), settle one first spring (40), a compacting ring (60), a flexible sealing ring (50), movable axis (70), second spring (80) successively; Also comprise a fixed mechanism (90); Described fixed mechanism (90) is placed under the movable axis (70) and makes the contact-making surface of flexible sealing ring (50) and movable axis (70) and the contact-making surface of flexible sealing ring (50) and lid (10) or body (20) is to connect airtight and touches structure.

2. explosion-proof button head according to claim 1 is characterized in that: described functional unit (30) is forward type or tapered end type or mushroom head dummy or selection type.

3. explosion-proof button head according to claim 1 and 2 is characterized in that: described lid (10) adopts buckle structure with being connected of body (20).