Portable gas mask

Abstract

The utility model relates to the technical field of gas masks, in particular to a portable gas mask which comprises a storage box, a groove body is formed in the middle of the storage box, a placing box is installed in the groove body, a gas mask body is placed on the placing box, and the gas mask body is arranged in the groove body. The placing box is further provided with a groove with the same size as the gas mask body, an exhalation valve is installed above the gas mask body, the placing box is further provided with a plurality of sets of grooves with the same size as the exhalation valve, the multiple sets of exhalation valves can be placed in the grooves for replacement, and the gas mask body is provided with an installation ring base. The limiting assembly is arranged on the side wall of the mounting ring base, and the limiting assembly is used for fixing the exhalation valve; the switch assembly is arranged on the exhalation valve, and the switch assembly is used for releasing the limitation of the exhalation valve so as to solve the problem that the exhalation valve of an existing gas mask is inconvenient to replace quickly.

Description

Technical Field

[0001] The utility model relates to the technical field of gas masks, in particular to a portable gas mask. Background Art

[0002] In the prior art, Chinese patent document CN209790654U proposes a portable gas mask, which is provided with a gas mask body and a nasal inhalation portion. The gas mask body adopts a flexible canvas structure, and the nasal inhalation portion is installed in the lower middle part of the gas mask body. The nasal inhalation portion is provided with a hollow cylindrical shape, and a storage cover body is provided on the outer cover of the lower middle part of the nasal inhalation portion. The storage cover body and the nasal inhalation portion are rotatably arranged, and a storage chamber is formed on the outer side of the nasal inhalation portion and the inner side of the storage cover body. A filter layer is installed on the upper part of the nasal inhalation portion, and a viewing portion is installed in the upper middle part of the gas mask body, and two viewing portions are symmetrically installed about the middle part of the gas mask body. However, consistent with conventional technology, long-term use will make the interior of the exhalation valve very dirty, and it cannot be replaced in time, resulting in poor protection and poor practicality. Therefore, the present application discloses a portable gas mask to solve the problem that the exhalation valve of the existing gas mask is not convenient to replace quickly. Utility Model Content

[0003] In view of this, the purpose of the present invention is to provide a portable gas mask to solve the problem that the exhalation valve of the existing gas mask is not convenient for quick replacement.

[0004] Based on the above-mentioned purpose, the utility model provides a portable gas mask, comprising: a storage box, a groove body is provided in the middle of the storage box, a placement box is installed in the groove body, a gas mask body is placed on the placement box, and a groove with the same size as the gas mask body is also provided on the placement box, an exhalation valve is detachably installed above the gas mask body, and the placement box also has multiple groups of grooves with diameters smaller than the diameters of the exhalation valves, and the placement box is made of soft material, multiple groups of exhalation valves can be embedded in the placement box for replacement use, and a mounting ring base is installed on the gas mask body; a limit assembly, the limit assembly is arranged on the side wall of the mounting ring base, and the limit assembly is used to fix the exhalation valve; a switch assembly, the switch assembly is arranged on the exhalation valve, and the switch assembly is used to release the limit on the exhalation valve.

[0005] Preferably, the limiting assembly includes the mounting ring base, and multiple groups of circular grooves are provided on the outer side wall of the mounting ring base. The circular grooves are provided with limiting protrusions, and a guide rod is installed at one end of the inner side of the limiting protrusion.

[0006] Preferably, a vertical spring is sleeved on the guide rod, one end of the vertical spring abuts against the bottom of the circular groove, and the other end of the vertical spring abuts against one end of the limiting protrusion. A shallow groove is also provided on the mounting ring base, and a sealing ring is sleeved in the shallow groove.

[0007] Preferably, the switch assembly includes a connecting ring, which is installed on one side of the exhalation valve, and a through groove is opened in the middle of the connecting ring close to the inner wall at one-third of the middle, and a limiting ring is sleeved in the groove.

[0008] Preferably, a rectangular groove body is further provided on the side wall of the connecting ring, which passes through from the outer wall to the groove, and both ends of the limiting ring are respectively located at the rectangular groove body, and handrails are installed at both ends of the limiting ring.

[0009] Preferably, fixing columns are installed on the inner sides of the two groups of armrests, and a compression spring is installed between the two groups of fixing columns, and both ends of the compression spring are respectively installed on the inner walls of the armrests.

[0010] Preferably, a groove of a size matching that of the sealing ring is provided on the inner wall of the connecting ring at a position corresponding to the sealing ring, and a hole adapted to the eye viewing angle is provided on the gas mask body, and a lens mounting strip is installed on the edge of the hole, and a high-definition lens is installed on the lens mounting strip, and a soft strip is installed on the inner side of the outer edge of the gas mask body, and the gas mask body is also provided with ventilation holes at the cheeks.

[0011] Beneficial effects of the utility model:

[0012] Efficient storage and convenience: The combination of a storage box and a placement box enables orderly storage of the gas mask body and multiple exhalation valves, which not only saves space but also makes it easy for users to quickly access and replace the exhalation valves, thereby improving the response speed in emergency situations.

[0013] Modular design: The separate design of the gas mask body and the exhalation valve, as well as the grooves on the placement box that match their sizes, make the exhalation valve easy to install and remove, convenient for cleaning, disinfection or replacement, and enhance the flexibility and durability of the product.

[0014] Improved safety: The setting of the limit assembly ensures a firm connection between the exhalation valve and the gas mask body, preventing unnecessary risks caused by loosening or falling off during use, and improving the user's safety protection level.

[0015] Easy to operate: The design of the switch assembly makes it simple and quick to release the limit of the exhalation valve, and it can be quickly replaced without complicated operations, optimizing the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of some components of the utility model;

[0019] Figure 3 This is a schematic diagram of the cross-sectional three-dimensional structure of some components of the utility model;

[0020] Figure 4 For this utility model Figure 3 The enlarged structural diagram at B in the middle;

[0021] Figure 5 For this utility model Figure 2 A in the middle is an enlarged structural diagram;

[0022] Figure 6 This is a schematic diagram of the cross-sectional three-dimensional structure of the limiting component of the utility model.

[0023] The following are marked in the figure:

[0024] 1. Storage box; 2. Placement box; 3. Exhalation valve; 4. Gas mask body; 5. Lens mounting strip; 6. High-definition lens; 7. Ventilation hole; 8. Soft rubber strip; 9. Connecting ring; 10. Limiting ring; 11. Handrail; 12. Fixing column; 13. Compression spring; 14. Mounting ring base; 15. Sealing ring; 16. Limiting bump; 17. Guide rod; 18. Vertical spring. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0026] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the usual meanings understood by people with ordinary skills in the field to which this utility model belongs. The "first", "second" and similar words used in this utility model do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0027] The utility model provides Figures 1 to 6 The portable gas mask shown in the figure comprises: a storage box 1, a groove body is provided in the middle of the storage box 1, a placement box 2 is installed in the groove body, a gas mask body 4 is placed on the placement box 2, and a groove of the same size as the gas mask body 4 is provided on the placement box 2, an exhalation valve 3 is detachably installed above the gas mask body 4, and a plurality of groups of grooves with diameters smaller than the diameters of the exhalation valve 3 are provided on the placement box 2, and the placement box 2 is made of soft material, and a plurality of groups of exhalation valves 3 can be embedded in the placement box 2 for replacement use, and a mounting ring base 14 is installed on the gas mask body 4; a limit assembly, the limit assembly is provided on the side wall of the mounting ring base 14, and the limit assembly is used to fix the exhalation valve 3; a switch assembly, the switch assembly is provided on the exhalation valve 3, and the switch assembly is used to release the limit of the exhalation valve 3, and the storage box 1 and the The combination of the placement box 2 realizes the orderly storage of the gas mask body 4 and multiple exhalation valves 3, which not only saves space, but also makes it convenient for users to quickly access and replace the exhalation valves 3, thereby improving the response speed in emergency situations. The separate design of the gas mask body 4 and the exhalation valve 3, and the grooves on the placement box 2 that match their sizes make it easy to install and disassemble the exhalation valve 3, which is convenient for cleaning, disinfection or replacement, thereby enhancing the flexibility and durability of the product. The setting of the limit assembly ensures a firm connection between the exhalation valve 3 and the gas mask body 4, preventing unnecessary risks caused by loosening or falling off during use, thereby improving the user's safety protection level. The design of the switch assembly makes it simple and quick to release the limit of the exhalation valve 3, and quick replacement can be achieved without complicated operations, thereby optimizing the user experience.

[0028] Furthermore, in this example, Figure 1 and Figure 6As shown, the limiting assembly includes a mounting ring base 14, a plurality of circular grooves are formed on the outer side wall of the mounting ring base 14, a limiting protrusion 16 is sleeved in the circular groove, a guide rod 17 is installed at one end of the inside of the limiting protrusion 16, a vertical spring 18 is sleeved on the guide rod 17, one end of the vertical spring 18 abuts against the bottom of the circular groove, the other end of the vertical spring 18 abuts against one end of the limiting protrusion 16, a shallow groove is further formed on the mounting ring base 14, a sealing ring 15 is sleeved in the shallow groove, when the inner end edge of the connecting ring 9 abuts against the mounting ring base 14, the inner wall of the connecting ring 9 will be in contact with the limiting protrusion 16, with the further pushing of the connecting ring 9, the limiting protrusion 16 is subjected to external force, the vertical spring 18 is compressed and moves along the guide rod 17 to the inside of the circular groove, when the connecting ring 9 reaches the predetermined position, the elastic force of the vertical spring 18 makes the limiting protrusion 16 quickly reset, and the exhalation valve 3 is firmly locked on the mounting ring base 14.

[0029] Further, in the present example, as Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the switch assembly includes a connecting ring 9, which is installed on one side of the exhalation valve 3, and a through groove is opened inside the connecting ring 9 corresponding to the position of the multiple groups of limiting protrusions 16. A limiting ring 10 is set in the groove, and the inner wall of the connecting ring 9 corresponds to the position of the multiple groups of limiting protrusions 16. Holes of the same size are opened therewith. A rectangular groove body is also opened on the side wall of the connecting ring 9, which passes through from the outer wall to the groove. The two ends of the limiting ring 10 are respectively located at the rectangular groove body, and handrails 11 are installed at both ends of the limiting ring 10. Fixed columns are installed on the inner sides of the two groups of handrails 11. 12, a compression spring 13 is installed between the two sets of fixing columns 12, and the two ends of the compression spring 13 are respectively installed on the inner wall of the armrest 11, and the inner wall of the connecting ring 9 corresponds to the position of the sealing ring 15 and is also provided with a groove adapted to its size. The gas mask body 4 is also provided with a hole adapted to the eye angle, and the edge of the hole is installed with a lens mounting strip 5, and a high-definition lens 6 is installed on the lens mounting strip 5. A soft rubber strip 8 is also installed on the inner side of the outer edge of the gas mask body 4, and the gas mask body 4 is also provided with a ventilation hole 7 at the cheek. The design of the soft rubber strip 8 and the ventilation hole 7 provides a good viewing angle. Improve the wearing comfort and breathing smoothness, when the exhalation valve 3 is installed on the gas mask body 4, the limiting protrusion 16 will enter the hole opened in the connecting ring 9 and be limited. At this time, the limiting ring 10 is kept in a taut state under the action of the compression spring 13, ensuring that the limiting protrusion 16 is firmly locked in the hole opened in the connecting ring 9, thereby achieving a firm connection between the exhalation valve 3 and the gas mask body 4. At this time, the groove opened inside the connecting ring 9 is aligned with the sealing ring 15 and maintains close contact. The cooperation between the sealing ring 15 and the groove enhances the tightness of the exhalation valve 3 and the gas mask body. The sealing between the mask body 4 improves the protection effect. When the exhalation valve 3 needs to be replaced, the user can pinch the armrest 11 and apply force to move the limit ring 10 along the rectangular groove and compress the compression spring 13. As the limit ring 10 moves, the inner wall of the limit ring 10 will squeeze the top of the limit protrusion 16, so that the limit protrusion 16 moves inward along the guide rod 17 under the action of external force, so that the top of the limit protrusion 16 is flush with the inner wall of the connecting ring 9, and the limit on the exhalation valve 3 is released. At this time, the user can easily pull out the exhalation valve 3 from the gas mask body 4 for replacement.

[0030] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Within the scope of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0031] The present application is intended to cover all such alternatives, modifications, and variations that fall within the broad scope of the appended claims. Accordingly, any and all such alternations, modifications, equivalents, improvements and the like are intended to be encompassed by the present application.

Claims

1. A portable gas mask, characterized in that: include: A storage box (1) is provided with a slot body in the middle of the storage box (1), a placement box (2) is installed in the slot body, a gas mask body (4) is placed on the placement box (2), and a groove with the same size as the gas mask body (4) is also provided on the placement box (2), an exhalation valve (3) is detachably installed above the gas mask body (4), and a plurality of grooves with diameters smaller than the diameter of the exhalation valve (3) are also provided on the placement box (2), and the placement box (2) is made of soft material, and a plurality of groups of the exhalation valves (3) can be embedded in the placement box (2) for replacement use, and a mounting ring base (14) is installed on the gas mask body (4); a limit assembly, the limit assembly is arranged on the side wall of the mounting ring base (14), and the limit assembly is used to fix the exhalation valve (3); a switch assembly, the switch assembly is arranged on the exhalation valve (3), and the switch assembly is used to release the limit on the exhalation valve (3).

2. A portable gas mask according to claim 1, characterized in that: The limiting assembly includes the mounting ring base (14), the outer side wall of the mounting ring base (14) is provided with a plurality of circular grooves, the circular grooves are inserted with limiting protrusions (16), one end of the inner side of the limiting protrusion (16) is provided with a guide rod (17), the guide rod (17) is provided with a vertical spring (18), one end of the vertical spring (18) abuts against the bottom of the circular groove, and the other end of the vertical spring (18) abuts against one end of the limiting protrusion (16).

3. A portable gas mask according to claim 2, characterized in that: The mounting ring base (14) is also provided with a shallow groove, and a sealing ring (15) is sleeved in the shallow groove.

4. A portable gas mask according to claim 3, characterized in that: The switch assembly includes a connecting ring (9), which is installed on one side of the exhalation valve (3), and the interior of the connecting ring (9) corresponds to the limiting protrusion (16), a through groove is opened at the positions of multiple groups of the limiting protrusions (16), a limiting ring (10) is sleeved in the groove, and the inner wall of the connecting ring (9) corresponds to the positions of the multiple groups of the limiting protrusions (16) and has holes of the same size as the limiting protrusions (16).

5. A portable gas mask according to claim 4, characterized in that: A rectangular groove body is also provided on the side wall of the connecting ring (9) and passes through from the outer wall to the groove. The two ends of the limiting ring (10) are respectively located at the rectangular groove body, and handrails (11) are installed at both ends of the limiting ring (10).

6. A portable gas mask according to claim 5, characterized in that: Fixed columns (12) are installed on the inner sides of the two groups of handrails (11), and a compression spring (13) is installed between the two groups of fixed columns (12). Both ends of the compression spring (13) are respectively installed on the inner wall of the handrail (11).

7. A portable gas mask according to claim 5, characterized in that: The inner wall of the connecting ring (9) is provided with a groove matching the size of the sealing ring (15) at a position corresponding to the sealing ring (15), and the gas mask body (4) is provided with a hole matching the eye angle, and the edge of the hole is provided with a lens mounting strip (5), and a high-definition lens (6) is installed on the lens mounting strip (5), and a soft rubber strip (8) is installed on the inner side of the outer edge of the gas mask body (4), and the gas mask body (4) is provided with a ventilation hole (7) at the cheek.

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