A quick-wash and hanging gas mask

Abstract

This utility model discloses a quick-change and hanging gas mask, including a mask body, a face shield, a filter connector, an exhalation valve, and a headband. The face shield is sealed to the rear contour edge of the mask body. The mask body has an air outlet on the front and air inlets on the left and right sides. A filter connector is located at each air inlet, and the filter is detachably connected to the filter connector. An exhalation valve is located at the air outlet. The mask also includes a cover assembly. A connecting boss is located on the front of the mask body, with limiting claws on its upper and lower sides. The cover assembly includes a cover and a locking valve. The cover is attached to the front of the connecting boss, with limiting slots at its upper and lower ends. The cover is snapped into the mask body, and the limiting claws are snapped into the limiting slots. This utility model's gas mask has a simple and reasonable structure, is easy to use, can be quickly put on and taken off, and is easy to clean and maintain.

Description

Technical Field

[0001] This utility model relates to the field of gas mask technology, and in particular to a gas mask that is quick to change and hang. Background Technology

[0002] A dust / gas respirator half-face mask is a respiratory protection device that, by replacing different types of filters and absorbent canisters, is compatible with various working environments. It protects the respiratory organs and face from dust, bacteria, or toxic and harmful gases.

[0003] The half-face respirator is made of high-quality imported natural rubber or silicone, offering excellent physical and mechanical properties, good elasticity, and a soft, comfortable feel. The exhalation valve has a wide opening range for smoother breathing, reducing heat and moisture buildup inside the mask and maintaining fresh air. The adjustable headband provides greater comfort; the polyester / spandex woven headband is more elastic and durable, and features both standard and hanging modes. In hanging mode, a helmet can be worn underneath for easy removal.

[0004] Workers wearing half-face respirators need to be able to easily remove and put on the masks because they frequently need to eat and drink. Additionally, the masks require cleaning and maintenance, but the headbands, due to their absorbent material, are difficult to dry, delaying their use after washing. Existing half-face respirators need improvement in addressing these issues. Utility Model Content

[0005] The purpose of this invention is to provide a quick-change and hanging gas mask with a simple and reasonable structural design, which is easy to use; it can be quickly put on and taken off, and is easy to clean and maintain.

[0006] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0007] A quick-change and hanging gas mask includes a mask body, a face shield, a filter connector, an exhalation valve, a headband, and a cover assembly.

[0008] The cover is a shell with a recessed cavity on the back, which conforms to the contour of the lower half of the human face. A face-protecting soft body is seamlessly connected to the edge of the rear contour of the cover, allowing the face-protecting soft body to contact the facial skin during wear, reducing pressure and friction, and improving wearing comfort. The face-protecting soft body is a ring-shaped soft structure with a hollow cavity in the middle, and can be made of TPE material.

[0009] The cover has an air outlet on the front and air inlets on the left and right sides.

[0010] The air inlet of the hood is equipped with a filter connector, and the filter is detachably connected to the filter connector; the air outlet of the hood is equipped with an exhalation valve, and a protective cover is provided on the outside of the exhalation valve, which is fitted and connected to the hood.

[0011] The exhalation valve is a one-way valve. When exhaling, if the air pressure inside the concave cavity of the mask is higher than the external air pressure, the valve plate is pushed open, allowing air to escape to the outside. When the air pressure inside the concave cavity is less than or equal to the external air pressure, the valve plate resets, blocking the air outlet. This is existing technology and will not be described in detail here.

[0012] The front side of the cover is provided with a connecting boss, and the upper and lower sides of the connecting boss are respectively provided with limiting claws.

[0013] The cover assembly includes a cover and a locking valve plate; the cover is attached to the front side of the connecting boss, and the upper and lower ends are respectively provided with limiting slots; the cover is snapped to the cover body, and the limiting claw is snapped to the limiting slot.

[0014] The bottom end of the locking valve plate is hinged to the cover and can rotate around the pivot at the connection point. The top end of the locking valve plate is provided with a second limiting protrusion, and the top end of the cover is also provided with a second limiting groove; the top end of the locking valve plate is snapped together with the cover, and the second limiting protrusion is located in the second limiting groove.

[0015] The buckle cover has headband cavities on its left and right sides, through which the headband (strap) passes; the upper end of the headband cavity has a pressure groove.

[0016] The locking valve plate has pressure valve plates on its left and right sides respectively, and the bottom of the pressure valve plate has protruding teeth.

[0017] The pressure valve plate is located in the pressure groove, and the headband cavity corresponding to the bottom of the protruding tooth is provided with a belt embedding groove.

[0018] The headband passes through the headband cavity, with the embedding groove and pressing groove located on both sides of the headband.

[0019] When the locking valve plate is engaged, the protruding teeth at the bottom of the pressure valve plate press the headband (partial section) into the embedding groove, causing the headband to be bent and tightened in a W-shape. In this state, the headband is locked and fixed to the buckle assembly, and the headband can be wrapped around the back of the head to wear the mask.

[0020] When the mask needs to be removed, simply disconnect the locking valve from the second limiting slot (pry the top of the locking valve outward). After the locking valve is opened, the pressure valves on both sides no longer apply pressure to the headband (the protrusions disengage from the embedding groove), and the headband is no longer compressed in the headband cavity, making it easy to remove the mask from the face. The entire mask can easily slide down and hang along the headband.

[0021] The headgear and the headband assembly are connected by snaps, making them easy to disassemble. After disassembly, the headgear only needs to be cleaned and dried, while the headband assembly does not require cleaning.

[0022] The beneficial effects of this utility model are:

[0023] Its structural design is simple and reasonable, and it is easy to use; it can be quickly put on and taken off, and is easy to clean and maintain. Attached Figure Description

[0024] Figure 1 This is a structural schematic diagram of a quick-change and hanging gas mask according to the present invention (the filter and headband have been omitted from all figures);

[0025] Figure 2 This is a front view of a quick-wash and hanging gas mask according to the present invention.

[0026] Figure 3 This is a rear view of a quick-change and hanging gas mask according to the present invention.

[0027] Figure 4 This is a schematic diagram of the cover structure of this utility model;

[0028] Figure 5 This is a schematic diagram of the structure of the card cover assembly of this utility model;

[0029] Figure 6 This is a structural schematic diagram of the card cover assembly of this utility model (from another perspective);

[0030] Figure 7 This is a schematic diagram of the structure of the snap-on cover of this utility model;

[0031] Figure 8 This is a schematic diagram of the cover structure of this utility model (from another perspective);

[0032] Figure 9 This is a schematic diagram of the locking valve plate of this utility model;

[0033] Figure 10 This is a schematic diagram of the locking valve plate of this utility model (from another perspective). Detailed Implementation

[0034] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0035] like Figures 1-8 As shown, a quick-change and hanging gas mask includes a mask body 1, a face shield 11, a filter connector 2, an exhalation valve 3, a head strap, and a cover assembly 4.

[0036] The cover 1 is a shell with a recessed cavity 10 on the rear side, which conforms to the contour of the lower half of the human face. A face-protecting soft body 11 is sealed to the edge of the rear contour of the cover 1, allowing the face-protecting soft body 11 to contact the facial skin during wear, reducing pressure and friction, and improving wearing comfort. The face-protecting soft body 11 is a ring-shaped soft structure with a cavity in the middle, and can be made of TPE material.

[0037] The cover 1 has an air outlet on the front and air inlets 12 on the left and right sides;

[0038] The air inlet 12 of the cover 1 is provided with a filter connector 2, and the filter is detachably connected to the filter connector 2; the air outlet of the cover 1 is provided with an exhalation valve 3, and a protective cover 5 is provided on the outside of the exhalation valve 3, and the protective cover 5 is fitted and connected to the cover 1.

[0039] The exhalation valve 3 is a one-way valve. When exhaling, the air pressure inside the cavity 10 of the mask 1 is higher than the outside air pressure, pushing open the valve plate and exhaling to the outside. When the air pressure inside the cavity 10 of the mask 1 is less than or equal to the outside air pressure, the valve plate resets and blocks the air outlet. This is existing technology and will not be described in detail here.

[0040] The front side of the cover 1 is provided with a connecting boss 13, and the upper and lower sides of the connecting boss 13 are respectively provided with limiting claws 14.

[0041] The cover assembly 4 includes a cover 41 and a locking valve plate 42; the cover 41 is attached to the front side of the connecting boss 13, and the upper and lower ends are respectively provided with limiting slots 43; the cover 41 is snapped to the cover body 1, and the limiting claw 14 is snapped to the limiting slot 43.

[0042] The bottom end of the locking valve plate 42 is hinged to the cover 41 and can rotate around the pivot 40 at the connection point. The top end of the locking valve plate 42 is provided with a limiting protrusion 44, and the top end of the cover 41 is also provided with a limiting groove 45; the top end of the locking valve plate 42 is snapped to the cover 41, and the limiting protrusion 44 is located in the limiting groove 45.

[0043] The buckle cover 41 has headband cavities 6 on its left and right sides, through which the headband (strap) passes; the upper end of the headband cavity 6 has a pressure groove 61.

[0044] The locking valve plate 42 is provided with a pressure band valve plate 46 on the left and right sides respectively, and the bottom of the pressure band valve plate 46 is provided with a protruding tooth 47.

[0045] The pressure valve plate 46 is located in the pressure groove 61, and the bottom of the protruding tooth 47 is provided with a belt embedding groove 62 at the position of the head belt cavity 6.

[0046] The headband passes through the headband cavity 6, with the embedding groove 62 and the pressing groove 61 located on both sides of the headband.

[0047] When the locking valve plate 42 is engaged, the protruding teeth 47 at the bottom of the pressure valve plate 46 press the headband (partial section) into the embedding groove 62, causing the headband to be bent and tightened in a W-shape. In this state, the headband is locked and fixed to the buckle assembly 4, and the headband can be wrapped around the back of the head to wear the mask.

[0048] When it is necessary to remove the mask, simply disconnect the locking valve plate 42 from the limiting slot 45 (by prying the top of the locking valve plate 42 outward). After the locking valve plate 42 is opened, the pressure valve plates 46 on both sides no longer apply pressure to the headband (the protrusions 47 disengage from the embedding groove 62), and the headband is no longer compressed in the headband cavity 6, thus making it easy to remove the mask from the face. The entire mask can easily slide down and hang along the headband.

[0049] The cover 1 and the buckle assembly 4 (headband) are connected by a snap fastener, making them easy to disassemble. After disassembly, the cover 1 can be cleaned, maintained, and dried, while the buckle assembly 4 (headband) does not need to be cleaned.

[0050] Preferably, to facilitate the prying of the locking valve plate 42 by fingers, the top of the locking valve plate 42 is provided with a pry buckle 48.

[0051] Preferably, the protective cover 5 and the cover assembly 4 are integrally formed.

[0052] This application applies to a variety of filters, which are not shown in the figures because they are consumables or accessories; the headband is also not shown in the figures.

[0053] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and alterations to these embodiments without departing from the principles and spirit of this utility model will still fall within the protection scope of this utility model.

Claims

1. A quick-change and hanging respirator, comprising a mask body, a face shield, a filter connector, an exhalation valve, and a headband; The cover is a shell with a recessed cavity on the rear side, which is adapted to the contour of the lower half of the human face; a face-protecting soft body is sealed and connected to the edge of the rear contour of the cover, and the face-protecting soft body is a ring-shaped soft body structure with a cavity in the middle. The cover has an air outlet on the front and air inlets on the left and right sides. The air inlet of the hood is equipped with a filter connector, and the filter is detachably connected to the filter connector; the air outlet of the hood is equipped with an exhalation valve. characterized in that It also includes the cover assembly; The front side of the cover is provided with a connecting boss, and the upper and lower sides of the connecting boss are respectively provided with limiting claws. The cover assembly includes a cover and a locking valve plate; the cover is attached to the front side of the connecting boss, and the upper and lower ends are respectively provided with limiting slots; the cover is snapped to the cover body, and the limiting claw is snapped to the limiting slot.

2. The quick-donning, washable, and hangable chemical protective mask of claim 1, wherein: The bottom end of the locking valve plate is hinged to the buckle cover; The top of the locking valve plate is provided with a limiting protrusion 2, and the top of the cover is also provided with a limiting groove 2; the top of the locking valve plate is snapped together with the cover, and the limiting protrusion 2 is located in the limiting groove 2.

3. The quick-donning, washable, and hangable respirator of claim 2, wherein: The buckle cover has headband cavities on its left and right sides, through which the headband passes; the upper end of the headband cavity has a pressure groove. The locking valve plate is provided with pressure band valve plates on both the left and right sides, and the bottom of the pressure band valve plate is provided with protruding teeth; The pressure valve plate is located in the pressure groove, and the headband cavity corresponding to the bottom of the protruding tooth is provided with a belt embedding groove.

4. The quick-donning, washable, and hangable respirator of claim 3, wherein: The headband passes through the headband cavity, and the embedding groove and pressing groove are located on both sides of the headband.

5. The quick-donning, washable, and hangable respirator of any one of claims 1-4, wherein: The exhalation valve is provided with a protective cover plate on the outside, which is fitted and connected to the cover body.

6. The quick-donning, washable, and hangable respirator of claim 5, wherein: The exhalation valve is a one-way valve.

7. The quick-donning, washable, and hangable respirator of claim 5, wherein: The locking valve plate has a lever at the top.

8. The quick-donning, washable, and hanging respirator of claim 5, wherein: The protective cover and the cover assembly are integrally formed.

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