CN103656902A

CN103656902A - Breather valve structure

Info

Publication number: CN103656902A
Application number: CN201210319447.6A
Authority: CN
Inventors: 陈孝兆
Original assignee: SHANGHAI GANGKAI PURIFYING PRODUCTS CO Ltd
Current assignee: SHANGHAI GANGKAI PURIFYING PRODUCTS CO Ltd
Priority date: 2012-09-03
Filing date: 2012-09-03
Publication date: 2014-03-26

Abstract

The invention relates to a breather valve structure. Valve holes are formed in the surface of a base, membranes cover the inner sides the valve holes of the base, the base is connected with a valve deck, a hollow cavity is formed between the base and the valve deck, and exhaust holes are formed in the valve deck. According to the breather valve structure, a step structure is formed on the surface of the valve deck, and thus automatic assembling and welding on an opening cover on an automatic machine can be carried out conveniently; besides common peripheral exhaust holes, the top exhaust holes are added in the step structure, and thus breathing is smoother; welding lines are added on the edge of the valve deck, welding is easier, and welding firmness is improved; the valve deck and the base are assembled into an integrated structure by using a snap joint mechanism, the overall designed structure of the product is reasonable, full automatic assembling can be achieved, and compared with the prior art, the breather valve structure has outstanding substantive features and remarkable improvement.

Description

A kind of breather valve structure

Technical field

The present invention relates to the technical field that protection purifies articles for use, specifically a kind of breather valve structure with top vent, particularly its mechanical connecting structure.

Background technology

Documents 1, the patent No.: CN200610156295.7, patentee: 3M Innovative Properties Company, the applying date: 2002.05.01, this case discloses " a kind of respirator with a check valve ", and it comprises: a face shield, and it has at least one for receiving the perforate of a check valve; And a check valve, this check valve comprises: a valve port and at least in part around a valve seat of this valve port; An and cantilevered flap, described flap has a first and an adjacent second portion of the valve port outside that is attached to respirator, second portion can be free to travel to from second portion at least a portion and the isolated second place of valve seat of second portion facing to a primary importance of valve base sealing, wherein, the second portion of flap comprise near the first end of first, with isolated one second end of first end, a top surface, a basal surface, wherein the thickness of flap changes between the first and second ends.

Documents 2, the patent No.: CN97239190.8, patentee: Zhao's hard iron, the applying date: 1997.11.17, this case discloses a kind of " with the Simple filter type mouth mask of outlet valve ", comprises support arm, inner support and is sandwiched in the filter course between inside and outside support.Support arm and inner support are by being positioned at its two perpendicular edge along the hinge of lower end, and by chimeric being integral mutually of the groove on the boss on the lateral surface of inner support top and corresponding support arm top medial surface, support arm both sides perpendicular edge is along having up and down frenulum hole, in the inner peripheral of inner support, gummed has a sponge or rubber ring, it is characterized in that inner support and support arm lower end have respectively exhaling hole correspondingly, on the lateral surface of support arm lower end, be provided with by movable valve block that can topped whole exhaling holes, make center valve rod and the two ends buckle-type of valve block location be connected to the outlet valve that the valve cap with steam vent on support arm forms.

There is certain defect in existing breath device or filter face mask breather valve structure used, automation assembling degree is low, and during use, capacity is inadequate, causes breathing smooth and easy not, and the welding fastness of breather valve and respirator or filter face mask body is inadequate.

Summary of the invention

The object of the present invention is to provide a kind of breather valve structure, it is with top vent, make to breathe more smooth and easy, and set up weld bond at valve gap edge, make the welding of breather valve and filter face mask body more convenient, and welding firmness is stronger, overcome the shortcoming and defect existing in prior art.

To achieve these goals, technical scheme of the present invention is: a kind of breather valve structure, it comprises base, it is characterized in that: described susceptor surface offers valve opening, the place, valve opening inner side of base is covered with diaphragm, base is connected with valve gap, between base and valve gap, forms hollow cavity, and valve gap place offers exhaust outlet.

The invention discloses a kind of breather valve structure, it forms ledge structure in valve cover surfaces, facilitating on automatic machine automatic mounting to fit on mouth mask welds, except common peripheral exhaust port, at ledge structure, place has set up top vent, make to breathe more smooth and easy, weld bond has been set up at valve gap edge, make welding lighter, and improved welding fastness, valve gap and base adopt snap device to be assembled into integrative-structure, product global design is rational in infrastructure, can realize full-automatic assembling, compared to existing technologies, there is outstanding substantive distinguishing features and marked improvement.

Accompanying drawing explanation

Fig. 1 is structural representation of the present invention.

Fig. 2 is understructure schematic diagram of the present invention.

Fig. 3 is valve cover structure schematic diagram of the present invention.

Fig. 4 is the side view of Fig. 2.

Fig. 5 is the upward view of Fig. 2.

Fig. 6 is profile of the present invention.

The specific embodiment

Below in conjunction with drawings and Examples, the invention will be further described.

The invention discloses a kind of breather valve structure, it comprises base 1, it is different from prior art and is: described base 1 surface offers valve opening 2, valve opening 2 places, inner side of base 1 are covered with diaphragm 3, base 1 is connected with valve gap 4, between base 1 and valve gap 4, form hollow cavity, valve gap 4 places offer exhaust outlet 5.

In the specific implementation, described base 1 surface is provided with circular port 6, the centre bit of this circular port 6 is provided with diaphragm 3 fixed legs 7, between this diaphragm fixed leg 7 and the inner edge of circular port 6, be provided with support bar 8, diaphragm fixed leg 7 is divergent shape to surrounding and is provided with 3-9 bar support bar 8, each support bar 8 carries out decile by circular port 6, the gap that each decile forms is above-mentioned valve opening 2, circular port 6 inner edges form annular flange flange 9 to above-mentioned hollow cavity, the centre bit of above-mentioned diaphragm 3 is fixed on diaphragm fixed leg 7 places, and diaphragm 3 surfaces are touched mutually with annular flange flange 9 surfaces.

In the specific implementation, the outer wall of described base 1 is provided with snap fit tabs portion 10, and described valve gap 4 inwall places be provided with cooperatively interact with snap fit tabs portion 10 engage depressed part 11, between base and valve gap, adopt the buckle mode structure that links into an integrated entity.

In the specific implementation, described valve gap 4 outer wall places form welded edge 12, and welded edge 12 is around whole valve gap 4 outer walls, and welded edge 12 surfaces are provided with protruding weld bond 13, and weld bond contributes to increase welding fastness, and makes welding operation more convenient.

In the specific implementation, described valve gap 4 outer wall places are provided with 1-10 exhaust outlet 5, the surface of valve gap 4 forms the step 14 of a protuberance, and the step sidepiece between these step 14 surfaces and valve gap 4 surfaces is also provided with 1-5 exhaust outlet 5, and so top exhaust structure makes to breathe more smooth and easy.

Above content is in conjunction with concrete preferred embodiment further description made for the present invention, can not assert that the concrete enforcement of the present invention is confined to above-mentioned these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.

Claims

1. a breather valve structure, it comprises base (1), it is characterized in that: described base (1) surface offers valve opening (2), the place, valve opening (2) inner side of base (1) is covered with diaphragm (3), base (1) is connected with valve gap (4), between base (1) and valve gap (4), form hollow cavity, valve gap (4) locates to offer exhaust outlet (5).

2. a kind of breather valve structure according to claim 1, it is characterized in that: described base (1) surface is provided with circular port (6), the centre bit of this circular port (6) is provided with diaphragm (3) fixed leg (7), between this diaphragm fixed leg (7) and the inner edge of circular port (6), be provided with support bar (8), diaphragm fixed leg (7) is divergent shape to surrounding and is provided with 3-9 bar support bar (8), each support bar (8) carries out decile by circular port (6), the gap that each decile forms is above-mentioned valve opening (2), circular port (6) inner edge forms annular flange flange (9) to above-mentioned hollow cavity, the centre bit of above-mentioned diaphragm (3) is fixed on diaphragm fixed leg (7) to be located, and diaphragm (3) surface is touched mutually with annular flange flange (9) surface.

3. a kind of breather valve structure according to claim 1, is characterized in that: the outer wall of described base (1) is provided with snap fit tabs portion (10).

4. a kind of breather valve structure according to claim 1, is characterized in that: described valve gap (4) inwall place be provided with cooperatively interact with snap fit tabs portion (10) engage depressed part (11).

5. a kind of breather valve structure according to claim 1, is characterized in that: described valve gap (4) outer wall place forms welded edge (12), and welded edge (12) is around whole valve gap (4) outer wall, and welded edge (12) surface is provided with protruding weld bond (13).

6. a kind of breather valve structure according to claim 1, it is characterized in that: described valve gap (4) outer wall place is provided with 1-10 exhaust outlet (5), the surface of valve gap (4) forms the step (14) of a protuberance, and the step sidepiece between this step (14) surface and valve gap (4) surface is also provided with 1-5 exhaust outlet (5).