Protective suit breather valve

Abstract

The utility model relates to the technical field of breather valve devices, in particular to a protective clothing breather valve which comprises a one-way ventilation mechanism, a breather valve sealing ring and an upper cover. The breather valve sealing ring is installed in an inner hole of the breather valve base in an inverted buckling mode, and the breather valve base and the upper cover are installed in an inverted buckling mode so that the breather valve sealing ring and the upper cover can block the breather valve base in the inspiration process and open the breather valve sealing ring and the upper cover in the expiration process to exhaust gas to the outside from the breather valve base through the breather valve sealing ring and the upper cover. The fixing mechanism comprises locking pieces and a protective clothing sealing gasket, the two locking pieces are in threaded connection with the thread position of the breather valve base, and the protective clothing sealing gasket is arranged at the thread position of the breather valve base in a sleeving mode. The device is simple in structure, can realize the effect of exhausting air without sucking air, and can be mounted on protective clothing.

Description

TECHNICAL FIELD

[0001] The utility model relates to a breathing valve device technical field especially relates to a protective clothing breathing valve. BACKGROUND

[0002] The breathing valve is a valve which can ensure the tank space to be isolated from the atmosphere within a certain pressure range and can be communicated with the atmosphere (breathing) when the pressure exceeds or is lower than the range. The breathing valve can prevent the tank from being damaged due to overpressure or vacuum and can reduce the evaporation loss of the liquid in the tank. The breathing valve can reduce the emission of the gas in the tank, thereby reducing the pollution of the atmosphere, and can prevent the tank from being damaged due to overpressure or being unstable due to over-vacuum, thereby promoting safety and environmental protection.

[0003] For example, the prior art, Chinese patent application number 93240786.2 breathing valve, which is provided with a large number of structures, and the device structure is complex.

[0004] Therefore, it is necessary to design a protective clothing breathing valve which has a simple structure and can realize the effect of only exhausting without inhaling and can be installed on the protective clothing. UTILITY MODEL CONTENTS

[0005] The utility model solves the technical problem of overcoming the defects of the prior art, and provides a protective clothing breathing valve which has a simple structure, can realize the effect of only exhausting without inhaling, and can be installed on the protective clothing.

[0006] To solve the above technical problems, the utility model adopts the technical scheme of a protective clothing breathing valve, which comprises:

[0007] The one-way ventilation mechanism comprises a breathing valve base, a breathing valve sealing ring and an upper cover, the breathing valve base and the breathing valve sealing ring are installed in a reverse manner, the breathing valve base and the upper cover are installed in a reverse manner, the breathing valve sealing ring and the upper cover block the breathing valve base when inhaling, and the breathing valve sealing ring and the upper cover are opened to discharge the gas through the breathing valve base, the breathing valve sealing ring and the upper cover when exhaling.

[0008] The fixing mechanism comprises locking pieces and a protective clothing sealing gasket, two locking pieces are connected to the threads of the breathing valve base in a threaded manner, and the protective clothing sealing gasket is sleeved on the threads of the breathing valve base, the protective clothing sealing gasket is arranged between the two locking pieces, one of the locking pieces is arranged on the outside of the protective clothing, and the protective clothing sealing gasket and the other locking piece are arranged on the inside of the protective clothing, so as to stably install the breathing valve base on the protective clothing.

[0009] Further, the breathing valve base comprises a circular block, one side of the circular block is fixedly connected with a threaded sleeve, the circular block is communicated with the threaded sleeve, the inner wall of the circular block is fixedly connected with a first sealing circular platform, the middle part of the first sealing circular platform is provided with a mounting protrusion, the breathing valve sealing ring is invertedly buckled on the mounting protrusion, and the first sealing circular platform can be sealed.

[0010] The two locking pieces are threadedly connected to the outer wall of the threaded sleeve, and the protective clothing sealing gasket is sleeved on the outer wall of the threaded sleeve.

[0011] Further, one side of the first sealing circular platform is fixedly connected with a second sealing circular platform, the inner diameter of the second sealing circular platform is larger than that of the first sealing circular platform, and the second sealing circular platform is arranged on the side of the first sealing circular platform away from the threaded sleeve, the breathing valve sealing ring is pressed on the first sealing circular platform and the second sealing circular platform, so that the breathing valve sealing ring seals the inside of the circular block during inhalation.

[0012] Further, the breathing valve sealing ring comprises a rubber sealing ring, one side of the rubber sealing ring is fixedly connected with an extension block, the extension block blocks the opening of the rubber sealing ring, and the extension block is provided with an inverted groove, the mounting protrusion is invertedly buckled in the inverted groove, so that the rubber sealing ring blocks the opening of the circular block during inhalation, and the rubber sealing ring and the extension block rise horizontally during exhalation, so that the gas moves from the edge of the rubber sealing ring to above the rubber sealing ring, and the gas blows the upper cover, so that the gas is discharged outside the upper cover.

[0013] Further, the inner wall of the circular block is fixedly connected with a rib, and the mounting protrusion is fixedly mounted on the rib.

[0014] Further, the mounting protrusion is T-shaped, and the inverted groove is T-shaped, so that the breathing valve sealing ring is stably arranged on the breathing valve base.

[0015] Compared with the prior art, the beneficial effects of the present application include:

[0016] The device can be stably installed on the protective clothing.

[0017] The device can discharge gas during exhalation, and will not inhale external gas during inhalation.

[0018] The device has simple structure and low cost. BRIEF DESCRIPTION OF DRAWINGS

[0019] The disclosure of the present application will be described with reference to the accompanying drawings. It should be understood that the drawings are only for illustrative purposes, and are not intended to limit the scope of protection of the present application. In the drawings, the same reference numerals are used to refer to the same parts. Among them:

[0020] Figure 1 It is the explosion structure schematic view of the device of the utility model;

[0021] Figure 2 It is the structure schematic view of the breathing valve base of the utility model;

[0022] Figure 3 It is the sectional structure schematic view of the breathing valve sealing ring of the utility model.

[0023] Marked number in the drawing: 1, upper cover; 2, breathing valve sealing ring; 3, breathing valve base; 4, locking piece; 5, protective clothing sealing pad; 21, rubber sealing ring; 22, extension block; 23, reverse buckle groove; 31, threaded sleeve; 32, circular ring block; 33, mounting protrusion; 34, first sealing circular ring platform; 35, second sealing circular ring platform; 36, rib. DETAILED DESCRIPTION

[0024] It is easy to understand that according to the technical scheme of the utility model, a plurality of structure modes and implementation modes that can be replaced with each other can be proposed by the general technical personnel in the field without changing the essential spirit of the utility model. Therefore, the following specific embodiments and drawings are only exemplary description of the technical scheme of the utility model, and should not be regarded as the whole of the utility model or regarded as the limitation or restriction of the technical scheme of the utility model.

[0025] Example one:

[0026] Focus on reference Figures 1-3 The device mainly includes breathing valve base 3, breathing valve sealing ring 2 and upper cover 1.

[0027] Breathing valve base 3 includes circular ring block 32, threaded sleeve 31, rib 36 and mounting protrusion 33.

[0028] The inner wall of circular ring block 32 is fixedly connected with first sealing circular ring platform 34, the hole in the middle of first sealing circular ring platform 34 is fixedly connected with rib 36, and mounting protrusion 33 is fixedly installed on rib 36. Mounting protrusion 33 is T-shaped.

[0029] The top of first sealing circular ring platform 34 is fixedly connected with second sealing circular ring platform 35, the inner diameter of first sealing circular ring platform 34 is less than the inner diameter of second sealing circular ring platform 35, forming a stepped shape, so that the subsequent sealing effect is better.

[0030] The bottom of circular ring block 32 is fixedly connected with threaded sleeve 31, threaded sleeve 31 is communicated with the middle part of circular ring block 32, and the outer wall of threaded sleeve 31 has external threads.

[0031] The breathing valve sealing ring 2 comprises a rubber sealing ring 21, the middle part of the rubber sealing ring 21 is a through hole, the top of the rubber sealing ring 21 is fixedly connected with an extension block 22, the extension block 22 is arranged on the upper side of the through hole, and the extension block 22 can prevent gas from flowing out of the middle part of the rubber sealing ring 21. A reverse slot 23 is formed in the extension block 22, and the reverse slot 23 is in a T shape. The installation protruding block 33 can be arranged in the reverse slot 23. The bottom of the rubber sealing ring 21 is in a stepped shape, so that the rubber sealing ring 21 is attached to the first sealing ring platform 34 and the second sealing ring platform 35. The rubber sealing ring 21 is pressed on the rib 36.

[0032] When inhaling, the negative pressure rubber sealing ring 21 is completely attached to the first sealing ring platform 34 and the second sealing ring platform 35. At this time, the gas inhaled from the outside can be avoided. When exhaling, the gas pressure drives the rubber sealing ring 21 at this time, the rubber sealing ring 21 is slightly deformed, and the gas breaks through the rubber sealing ring 21 at this time. The reverse slot 23 and the installation protruding block 33 are arranged in cooperation, so that the rubber sealing ring 21 can be stably sealed when sealing is required.

[0033] The upper cover 1 is reversely buckled on the breathing valve base 3, and when exhaling, the gas blows the upper cover 1, at this time, the gas flows from the edge of the upper cover 1 to the outside, and the gas is discharged.

[0034] Example two: on the basis of example one, technical means for stably installing the device on the protective clothing is increased.

[0035] Key reference Figure 1 The embodiment mainly comprises locking pieces 4 and a protective clothing sealing gasket 5.

[0036] The outer wall of the threaded sleeve 31 is threadedly connected with two locking pieces 4, and the outer wall of the threaded sleeve 31 is sleeved with a protective clothing sealing gasket 5. The protective clothing sealing gasket 5 is arranged between the two locking pieces 4. The annular block 32 is installed on the outer side of the protective clothing, the threaded sleeve 31 penetrates the opening of the protective clothing and is arranged on the inner side of the protective clothing, one of the locking pieces 4 is arranged on the outer side of the protective clothing, the locking piece 4 is threadedly connected at the bottom of the threaded sleeve 31, and the locking piece 4 is pressed on the outer side of the protective clothing. The protective clothing sealing gasket 5 is attached to the inner side of the protective clothing, and the other locking piece 4 is threadedly pressed against the protective clothing sealing gasket 5, so that the threaded sleeve 31 and the annular block 32 are stably installed on the protective clothing.

[0037] The other features of example two are the same as those of example one.

[0038] The technical range of the utility model is not limited to the content in the above description, and those skilled in the art can make various deformations and modifications to the above examples without departing from the technical thought of the utility model, and these deformations and modifications should all belong to the protection range of the utility model.

Claims

1. A respiratory valve for protective clothing, characterized in that It includes: One-way ventilation mechanism, the one-way ventilation mechanism includes breathing valve base (3), breathing valve sealing ring (2) and upper cover (1), breathing valve base (3) is installed with breathing valve sealing ring (2) upside down, breathing valve base (3) is installed with upper cover (1) upside down, for making breathing valve sealing ring (2) and upper cover (1) block breathing valve base (3) when inhaling, breathing valve sealing ring (2) and upper cover (1) open when exhaling make gas discharge through breathing valve base (3), breathing valve sealing ring (2) and upper cover (1); Fixing mechanism, the fixing mechanism includes locking piece (4) and protective clothing sealing pad (5), the threads of breathing valve base (3) are connected with two locking pieces (4), and the threads of breathing valve base (3) are sleeved with protective clothing sealing pad (5), protective clothing sealing pad (5) is placed between two locking pieces (4), one of locking pieces (4) is placed on the outside of protective clothing, protective clothing sealing pad (5) and the other locking piece (4) are placed on the inside of protective clothing, for installing breathing valve base (3) on protective clothing.

2. A respiratory valve for protective clothing according to claim 1, wherein The breathing valve base (3) includes a circular block (32), one side of the circular block (32) is fixedly connected with a threaded sleeve (31), the circular block (32) is in communication with the threaded sleeve (31), the inner wall of the circular block (32) is fixedly connected with a first sealing circular platform (34), the middle part of the first sealing circular platform (34) is provided with a mounting protrusion (33), the breathing valve sealing ring (2) is inverted on the mounting protrusion (33), and the first sealing circular platform (34) can be sealed; Two locking pieces (4) are threadedly connected to the outer wall of the threaded sleeve (31), and the protective clothing sealing pad (5) is sleeved on the outer wall of the threaded sleeve (31).

3. A respiratory valve for protective clothing according to claim 2, wherein One side of the first sealing circular platform (34) is fixedly connected with a second sealing circular platform (35), the inner diameter of the second sealing circular platform (35) is greater than that of the first sealing circular platform (34), and the second sealing circular platform (35) is located on the side of the first sealing circular platform (34) away from the threaded sleeve (31), and the breathing valve sealing ring (2) is pressed on the first sealing circular platform (34) and the second sealing circular platform (35), so that the breathing valve sealing ring (2) seals the inside of the circular block (32) when inhaling.

4. A respiratory valve for protective clothing according to claim 3, wherein The breathing valve sealing ring (2) includes a rubber sealing ring (21), one side of the rubber sealing ring (21) is fixedly connected with an extension block (22), the extension block (22) blocks the opening of the rubber sealing ring (21), and a reverse slot (23) is formed in the extension block (22), the mounting protrusion (33) is inverted in the reverse slot (23), for inhaling, the rubber sealing ring (21) blocks the opening of the circular block (32), and the rubber sealing ring (21) and the extension block (22) rise horizontally when exhaling, so that the gas moves from the edge of the rubber sealing ring (21) to the upper side of the rubber sealing ring (21), and the gas blows the upper cover (1), so that the gas is discharged outside the upper cover (1).

5. A respiratory protector according to claim 2, wherein The inner wall of the circular ring block (32) is fixedly connected with a rib (36), and the mounting protrusion (33) is fixedly mounted on the rib (36).

6. A respiratory protector according to claim 4, wherein The mounting protrusion (33) is T-shaped, and the undercut groove (23) is T-shaped, so that the breathing valve sealing ring (2) is arranged on the breathing valve base (3).

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