CN202751705U

CN202751705U - Breather valve structure

Info

Publication number: CN202751705U
Application number: CN 201220442611
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: 2013-02-27
Anticipated expiration: 2022-09-03

Abstract

The utility model relates to a breather valve structure. A valve hole is arranged on the surface of a base, a diaphragm is coated on the inner side of the valve hole of the base, the base is connected with a valve cover, a hollow cavity is formed between the base and the valve cover, and an air outlet is arranged at the position of the valve cover. A stepped structure is formed on the surface of the valve cover, so that an automat can be automatically assembled on a mask for welding, except common peripheral air outlets, a top air outlet is added on the stepped structure to enable breathing to be smooth, a fusion welding line is added at the edge of the valve cover to enable the fusion welding to be easy, the fusion welding firmness is improved, the valve cover and the base are assembled into an integrated structure by utilizing a snap joint mechanism, the whole design of the breather valve structure is reasonable in structure, a full-automation assembly can be achieved, and compared with breather valve structures in prior art, the breather valve structure has prominent substantial characteristics and remarkable advance.

Description

A kind of breather valve structure

Technical field

The utility model 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 perforate that is used for admitting 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, the patentee: Zhao 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 filter course between the 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 mutual chimeric being integral of the groove on the boss on the lateral surface of inner support top and the corresponding support arm top medial surface, support arm both sides perpendicular edge is along having up and down the frenulum hole, gummed has a sponge or rubber ring on the inner peripheral of inner support, it is characterized in that inner support and support arm lower end have respectively exhaling hole correspondingly, be provided with on the lateral surface of support arm lower end 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 the support arm consists of.

There are certain defect in existing breath device or the used breather valve structure of filter face mask, and automation assembling degree is low, and capacity is inadequate during use, cause 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 purpose of this utility model is to provide a kind of breather valve structure, it is with top vent, so that breathe more smooth and easy, and set up weld bond at the valve gap edge, make the welding of breather valve and filter face mask body more convenient, and the welding firmness is stronger, has overcome the shortcoming and defect that exists in the prior art.

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

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

Description of drawings

Fig. 1 is the utility model structural representation.

Fig. 2 is the utility model understructure schematic diagram.

Fig. 3 is the utility model valve cover structure schematic diagram.

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

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

Fig. 6 is the utility model profile.

The specific embodiment

The utility model will be further described below in conjunction with drawings and Examples.

The utility model 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, the valve opening 2 inboard places of base 1 are covered with diaphragm 3, base 1 is connected with valve gap 4, form hollow cavity between base 1 and the valve gap 4, 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, be provided with support bar 8 between the inner edge of this diaphragm fixed leg 7 and circular port 6, diaphragm fixed leg 7 to around be divergent shape and be provided with 3-9 bar support bar 8, each support bar 8 carries out five equilibrium with circular port 6, the gap that each five equilibrium 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 in 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 section 10, and described valve gap 4 inwall places are provided with snap fit tabs section 10 cooperatively interacts and engage depressed part 11, adopts the buckle mode structure that links into an integrated entity between base and the valve gap.

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 the weld bond 13 of projection, and weld bond helps to increase the welding fastness, and so that the welding operation is 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 also is provided with 1-5 exhaust outlet 5, and so the top exhaust structure is so that breathe more smooth and easy.

Above content is in conjunction with concrete preferred embodiment further detailed description of the utility model, can not assert that the utility model implementation is confined to above-mentioned these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, can also make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.

Claims

1. breather valve structure, it comprises base (1), it is characterized in that: described base (1) surface offers valve opening (2), the inboard place of the valve opening (2) of base (1) is covered with diaphragm (3), base (1) is connected with valve gap (4), form hollow cavity between base (1) and the valve gap (4), 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), be provided with support bar (8) between the inner edge of this diaphragm fixed leg (7) and circular port (6), diaphragm fixed leg (7) to around be divergent shape and be provided with 3-9 bar support bar (8), each support bar (8) carries out five equilibrium with circular port (6), the gap that each five equilibrium 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 in 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, it is characterized in that: the outer wall of described base (1) is provided with snap fit tabs section (10).

4. a kind of breather valve structure according to claim 1 is characterized in that: described valve gap (4) inwall place is provided with snap fit tabs section (10) cooperatively interacts and engages 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 the weld bond (13) of projection.

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 also is provided with 1-5 exhaust outlet (5).