CN205287297U

CN205287297U - Detachable expiratory valve

Info

Publication number: CN205287297U
Application number: CN201620043595.3U
Authority: CN
Inventors: 蒋夏丽
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-01-18
Filing date: 2016-01-18
Publication date: 2016-06-08
Anticipated expiration: 2026-01-18

Abstract

The utility model discloses a detachable expiratory valve, including one -way expiratory valve subassembly and detachable fastener, one -way expiratory valve subassembly includes sealing washer, base, valve block and dustcoat, is provided with seal structure and cylinder on the base, and the valve block is installed on the cylinder, detachable fastener install the base admit air one side, the dustcoat is installed on the base. The device simple structure, be convenient for installation and change, the safety in utilization is good, coordinate the gauze mask to use the device, do not form extra protruding structure in the gauze mask inboard, can avoid yin peidai person's mouth or face to touch uncomfortable that the fastener brought and feel, can make the person's of wearing expiration become more smooth and easy on the gauze mask repacking banding expiratory valve's that does not have expiratory valve gauze mask, the device not only expiratory resistance is lower, and the sealed effect when breathing in moreover is better, the device can used repeatedly, reduces use cost, reduces environmental pollution.

Description

A kind of detachable outlet valve

Technical field

The utility model relates to a kind of outlet valve, specifically a kind of detachable outlet valve.

Background technology

With the mouth mask of outlet valve, especially filtering type particle protective mask, because it has lower expiratory resistance, and can remove fast the warm and humid air of exhalation, and accepted and like by people widely. But, still there are a lot of people owing to cannot bearing expensive with outlet valve mouth mask, or because cannot obtain the mouth mask with outlet valve, and have to wear the valveless mouth mask that may cause unsmooth breath. Unidirectional outlet valve of giving vent to anger generally includes a pedestal with blow vent, valve block and the outer protective cover of a unidirectional unlatching. US Patent No. 7069931B2 has announced the production method of the filter-type respirator with outlet valve, but these valves are to be all fixed on mouth mask body, cannot dismantle and effectively reuse. US Patent No. 2007283964A1 discloses a kind of reusable outlet valve, and this outlet valve can be connected on any mouth mask by flange, exhales, instead of exhale with nose freely but need wearer to catch in its mouth mouthpiece, greatly reduces comfortableness. Chinese patent CN201869814U discloses a kind of mouth mask with detachable outlet valve. Middle seat and the base by thread interface of this outlet valve are fixed on mouth mask body, form a large bossing in mouth mask inner side, are easy to mouth or the face of top to wearer. Chinese patent CN203736737U also discloses a kind of mouth mask with detachable outlet valve. What the outlet valve described in this patent adopted is the planar rondure valve block of middle perforation. Planar rondure valve block in actual applications, may cause because valve block material is different with technique following 2 extreme problems: the first, there is no specific outgassing direction, and when expiration, be difficult for unlatching, thereby lose the operation of outlet valve; The second, the laminating between valve block and base does not stress substantially, is difficult for closure when air-breathing, easily pollutes the leakage of thing.

Summary of the invention

The purpose of this utility model is to provide a kind of detachable outlet valve, to solve the problem proposing in above-mentioned background technology.

For achieving the above object, the utility model provides following technical scheme:

A kind of detachable outlet valve, comprise one-way breather valve assembly and detachable fastener, described one-way breather valve assembly comprises sealing ring, base, valve block and outer cover, on base, be provided with hermetically-sealed construction and cylinder, hermetically-sealed construction and cylinder are all positioned at a side and the cylinder that base gives vent to anger and are positioned in the middle of hermetically-sealed construction, in the middle of valve block, be provided with through hole, valve block is arranged on cylinder and is fitted on hermetically-sealed construction, form check valve, base air inlet one side is provided with the bayonet arrangement for connecting detachable fastener, be fixed on the outer ring of base air inlet one side for the sealing ring of sealing off gap, detachable fastener adopts the thin slice that thickness is 0.5-1.5mm and is arranged on base air inlet one side by bayonet arrangement, outer cover is arranged on base by cylinder and compresses the mid portion of valve block.

As further program of the utility model: valve block be shaped as circle, ellipse or rectangle, hermetically-sealed construction is arc cambered surface.

As further program of the utility model: outer cover adopts welding or is fixed on the side of giving vent to anger of base by bayonet socket.

As further program of the utility model: valve block adopts elastomeric material to make.

As further program of the utility model: lower-left side and the lower right side of outer cover are provided with perforate.

As further program of the utility model: buckle structure is multiple flexible steering-wheel-shapeds that have the cantilever beam shape of barb or have multiple outstanding structures.

As further program of the utility model: there is a sunk type bayonet socket centre of detachable buckle.

As further program of the utility model: sunk type bayonet socket is annular or the annular with multiple breach.

Compared with prior art, the beneficial effects of the utility model are: this apparatus structure is simple, are convenient to install and change, and safety in utilization is good; Coordinate mouth mask to use in this device, do not form extra bulge-structure in mouth mask inner side, can avoid touching because of wearer's mouth or face the sense of discomfort that fastener brings, can will repack the mouth mask with outlet valve into without the mouth mask of outlet valve, make wearer's expiration become more smooth and easy; This device not only expiratory resistance is lower, and sealing effectiveness when air-breathing is better; This device can be reused, and reduces use cost, reduces environmental pollution.

Brief description of the drawings

Fig. 1 is the explosive view of detachable outlet valve.

Fig. 2 is the front view of detachable outlet valve.

Fig. 3 is the side view of detachable outlet valve.

Fig. 4 is the structural representation of detachable outlet valve Elastic cantilever beam shape bayonet socket and annular bayonet fittings.

Fig. 5 is the structural representation of steering-wheel-shaped bayonet socket and notched annular bayonet fittings in detachable outlet valve.

Wherein: the detachable fastener of 1-, 2-sealing ring, 3-base, 31-hermetically-sealed construction, 32-cylinder, 4-valve block, 5-outer cover, 6-elastic cantilever shape bayonet socket, 7-sunk type annular bayonet socket, 8-steering-wheel-shaped bayonet socket, the notched annular bayonet socket of 9-sunk type.

Detailed description of the invention

Below in conjunction with detailed description of the invention, the technical scheme of this patent is described in more detail.

Refer to Fig. 1-3, a kind of detachable outlet valve, comprise one-way breather valve assembly and detachable fastener 1, described one-way breather valve assembly comprises sealing ring 2, base 3, valve block 4 and outer cover 5, on base 3, be provided with hermetically-sealed construction 31 and cylinder 32, hermetically-sealed construction 32 and cylinder 32 are all positioned at a side and the cylinder 32 that base 3 gives vent to anger and are positioned in the middle of hermetically-sealed construction 31, in the middle of valve block 4, be provided with through hole, valve block 4 is arranged on cylinder 32 and is fitted on hermetically-sealed construction 31, form check valve, base 3 air inlet one sides are provided with the bayonet arrangement for connecting detachable fastener 1, be fixed on the outer ring of base 3 air inlet one sides for the sealing ring 2 of sealing off gap, detachable fastener 1 adopts thickness to be the thin slice of 0.5-1.5mm and to be arranged on base 3 air inlet one sides by bayonet arrangement, outer cover 5 is arranged on base 3 by cylinder 32 and compresses the mid portion of valve block 4. valve block 4 be shaped as circle, ellipse or rectangle, hermetically-sealed construction 31 be shaped as arc, sealing ring 2 be shaped as annular. outer cover 5 adopts welding or is fixed on base 3 by bayonet socket. valve block 4 adopts elastomeric material to make. lower-left side and the lower right side of outer cover 5 are provided with perforate, for the warm and humid air that discharge is breathed out downwards, the risk that causes wearer's glasses to haze to reduce warm and humid air.

Specific embodiment 1, refer to Fig. 4, flexible cantilever beam shape bayonet socket 6 on base 3, the detachable fastener 1 coordinating with it has a sunk type annular bayonet socket 7, the elastic cantilever shape bayonet socket 6 of base 3 is through the sunk type annular bayonet socket 7 of detachable fastener 1, be held on sunk type annular bayonet socket 7 by the barb of elastic cantilever bayonet socket, thereby one-way breather valve assembly is fixed on the mouth mask of punching in advance, the mouth mask of formation with outlet valve, one-way breather valve assembly is in the outside of mouth mask, and detachable fastener 1 is in the inner side of mouth mask.

Specific embodiment 2, refers to Fig. 5, and the bayonet socket of base 3 is the steering-wheel-shaped bayonet socket 8 that has multiple bulge-structures, and the detachable fastener 1 coordinating is with it the notched annular bayonet socket 9 of sunk type. The steering-wheel-shaped bayonet socket 8 of base 3 is through the notched annular bayonet socket 9 of sunk type of detachable fastener 1, be held on detachable fastener 1 left or after 10 °-15 ° of right rotations, thereby one-way breather valve assembly is fixed on the mouth mask of punching in advance, the mouth mask of formation with outlet valve, one-way breather valve assembly is in the outside of mouth mask, and detachable fastener 1 is in the inner side of mouth mask.

Operation principle of the present utility model is: this device has a detachable fastener 1, it is the only thin slice of 0.5mm-1.5mm of thickness, by sunk type bayonet socket, this device is connected on mouth mask, do not form extra bulge-structure in mouth mask inner side, can avoid touching because of wearer's mouth or face the sense of discomfort that fastener brings; Check valve is made up of arc hermetically-sealed construction 31 and elastic valve plate 4, owing to being positioned elastic valve plate 4 discontinuity of arc hermetically-sealed construction 31, in the time exhaling, valve block 4 is first opened in the part on both sides arc top, two directed check valves of actual formation, with respect to plane valve block, not only expiratory resistance is lower, and sealing effectiveness when air-breathing is better. This apparatus structure is simple, is convenient to install and change, and safety in utilization is good; Coordinate mouth mask to use in this device, do not form extra bulge-structure in mouth mask inner side, can avoid touching because of wearer's mouth or face the sense of discomfort that fastener brings, can will repack the mouth mask with outlet valve into without the mouth mask of outlet valve, make wearer's expiration become more smooth and easy; This device not only expiratory resistance is lower, and sealing effectiveness when air-breathing is better; This device can be reused, and reduces use cost, reduces environmental pollution.

Above the preferred embodiments of this patent is explained in detail, but this patent is not limited to above-mentioned embodiment, in the ken that one skilled in the relevant art possesses, can also under the prerequisite that does not depart from this patent aim, makes a variety of changes.

Claims

1. a detachable outlet valve, it is characterized in that, comprise one-way breather valve assembly and detachable fastener, described one-way breather valve assembly comprises sealing ring, base, valve block and outer cover, on base, be provided with hermetically-sealed construction and cylinder, hermetically-sealed construction and cylinder are all positioned at a side and the cylinder that base gives vent to anger and are positioned in the middle of hermetically-sealed construction, in the middle of valve block, be provided with through hole, valve block is arranged on cylinder and is fitted on hermetically-sealed construction, form check valve, base air inlet one side is provided with the bayonet arrangement for connecting detachable fastener, be fixed on the outer ring of base air inlet one side for the sealing ring of sealing off gap, detachable fastener adopts the thin slice that thickness is 0.5-1.5mm and is arranged on base air inlet one side by bayonet arrangement, outer cover is arranged on base by cylinder and compresses the mid portion of valve block.

2. detachable outlet valve according to claim 1, is characterized in that, described valve block be shaped as circle, ellipse or rectangle, hermetically-sealed construction is arc cambered surface.

3. detachable outlet valve according to claim 1 and 2, is characterized in that, described outer cover adopts welding or is fixed on the side of giving vent to anger of base by bayonet socket.

4. detachable outlet valve according to claim 3, is characterized in that, described valve block adopts elastomeric material to make.

5. detachable outlet valve according to claim 4, is characterized in that, lower-left side and the lower right side of described outer cover are provided with perforate.

6. detachable outlet valve according to claim 5, is characterized in that, described buckle structure is multiple flexible steering-wheel-shapeds that have the cantilever beam shape of barb or have multiple outstanding structures.

7. detachable outlet valve according to claim 6, is characterized in that, there is a sunk type bayonet socket centre of described detachable buckle.

8. detachable outlet valve according to claim 7, is characterized in that, described sunk type bayonet socket is annular or the annular with multiple breach.