Anti-freezing half mask

Abstract

The utility model discloses an anti-freezing half mask, and relates to the technical field of protective masks, the anti-freezing half mask comprises a mask body, one side of the mask body is fixedly provided with an upper lacing and a lower lacing, and the upper lacing is located above the lower lacing; the filtering assemblies are symmetrically and fixedly mounted on one side of the mask body, and the filtering assemblies are used for filtering and heating cold air and collecting generated condensate water. Compared with the prior art, heat absorbed by the heat-conducting fins is stored in the silicone grease pad, then the heating air pipe is heated through the silicone grease pad, heat loss is reduced, meanwhile, condensate water can be collected through the arranged detachable disassembly base, the air inlet and outlet channel is prevented from being blocked, and through the arranged locking assembly, the heat dissipation efficiency is improved. The mask body is more convenient and faster to wear and take down, the using comfort is better, meanwhile, the size of the mask body when the mask body is not worn can be reduced, and storage and carrying are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of protective masks, in particular to an antifreeze half mask. Background Art

[0002] When working outdoors or doing winter sports in cold climates, the face is susceptible to extreme low temperatures and wind chill, leading to frostbite and discomfort. Frostbite is a localized inflammatory skin disease of the extremities caused by cold. It is a common winter disease. In cold areas, people often encounter cold winds and low temperatures when going out. Unprotected face can lead to facial frostbite.

[0003] A Chinese patent with publication number CN220255769U discloses a cold-region anti-frostbite mask, specifically relating to the field of protective masks, including a mask body, a sealing ring fixedly connected to one side surface of the mask body, and a breathing device arranged at the front end of the mask body. Through the arranged breathing device, the cold air in the breathing tube is heated by the previously exhaled hot air, the air temperature is increased, and the influence of the cold air on the normal breathing of the human body can be reduced. However, during the use of the device, the exhaled hot air will condense into water droplets on the breathing tube, accumulate in the protective shell and cannot be discharged, and will also condense into ice under extremely cold conditions, affecting the inhalation and exhalation. At the same time, since inhalation and exhalation cannot be performed at the same time, only a small part of the heat generated by the device during exhalation remains on the breathing tube to heat the cold air, and the heating effect is poor. Utility Model Content

[0004] The utility model aims to provide an antifreeze half mask to solve the problem in the background art that the exhaled hot air will accumulate condensed water, affecting the inlet and outlet of air and causing poor heating effect.

[0005] To achieve the above object, the utility model provides the following technical solution: an antifreeze half mask, comprising: a mask body, an upper tie and a lower tie fixedly mounted on one side of the mask body, the upper tie being located above the lower tie;

[0006] A filter assembly is symmetrically fixedly mounted on one side of the mask body, the filter assembly is used to filter and heat the cold air, the filter assembly is used to collect the generated condensed water, the filter assembly comprises a valve housing fixedly mounted on one side of the mask body, a heat conducting sheet is fixedly mounted inside the valve housing, a grille is arranged on the heat conducting sheet, a silicone pad is fixedly mounted on one side of the heat conducting sheet, a plurality of groups of heating air ducts are fixedly mounted inside the silicone pad, an air inlet valve sheet and an air outlet valve sheet are mounted on the side of the valve housing connected to the mask body, the air inlet valve sheet is connected to the heating air duct, the air outlet valve sheet is connected to the heat conducting sheet, and a disassembly seat is mounted on the bottom buckle of the valve housing;

[0007] A locking assembly is fixedly mounted on one side of the mask body, and is used to tighten and release the upper strap and the lower strap.

[0008] Preferably, the locking assembly includes an upper winding box fixedly mounted on one side of the mask body, a lower winding box fixedly mounted on the bottom of the upper winding box, a through slot adapted to the upper lace and the lower lace is provided on one side of the upper winding box and the lower winding box, a winding roller and a rotating shaft are rotatably mounted on the bottom of the upper winding box, the winding roller and the rotating shaft are driven by gear meshing, the bottom of the winding roller passes through the top of the lower winding box, and the winding roller and the bottom of the lower winding box rotate The cam is connected to the upper and lower ties, one ends of the upper and lower ties pass through the through slots on the upper and lower winding boxes and are wound around the winding roller, a coil spring is fixedly mounted on the rotating shaft, the other end of the coil spring is fixedly mounted on an inner wall of one side of the upper winding box, a ratchet is fixedly mounted on the rotating shaft, the ratchet is located above the coil spring, a pressing key is hingedly mounted on the bottom of one side opening of the upper winding box, a clamping block is fixedly mounted on one side of the pressing key, and the clamping block is adapted to the ratchet.

[0009] Preferably, the intake valve plate is a rubber part, a fixing seat is fixedly installed in the middle of the intake valve plate, the fixing seat is a PET plastic part, a sealing ring is arranged on one side of the intake valve plate, and the outlet valve plate has the same structure as the intake valve plate but is installed in the opposite direction.

[0010] Preferably, an air intake channel and an air outlet channel are provided inside the disassembly seat, the air intake channel is connected to the heating air duct, the air outlet channel is connected to the heat conducting plate, the air inlet of the air intake channel is located on one side inner wall of the air intake channel, the air outlet of the air intake channel is located at the top of the air intake channel, the air inlet of the air outlet channel is located at the top of the air outlet channel, the air outlet of the air outlet channel is located on both side inner walls of the air outlet channel, a filter is fixedly installed at the air inlet of the air intake channel, and an absorbent cotton core is placed at the bottom of the air outlet channel.

[0011] Preferably, the card block is a PET plastic part, a pawl is fixedly provided on the inner wall of one side of the card block, the pawl is adapted to the ratchet, and a spring piece is fixedly provided on one side of the card block in a symmetrical manner, and the spring piece is U-shaped.

[0012] Preferably, the exterior of the mask body is a nylon layer, and the interior of the mask body is provided with a pure cotton interlayer.

[0013] Technical effects and advantages of the utility model:

[0014] The utility model has a reasonable structure. The heat absorbed by the heat conductive sheet is stored in the silicone pad, and then the silicone pad is used to heat the heating air duct, thereby avoiding a large amount of heat loss caused by the inability to inhale and exhale at the same time, so that the heating effect of the cold air is better. At the same time, the detachable disassembly seat can be used to collect condensed water to avoid blocking the air inlet and outlet channels. The filter sheet and the absorbent cotton core can also be easily replaced. After using it for a period of time, the disassembly seat can be directly replaced without frequently replacing the mask body, which is more practical.

[0015] In the utility model, by cooperating with the set spring piece and the push button, the opening and closing of the ratchet and the pawl can be controlled by pressing the button, thereby controlling the locking and lengthening of the upper strap and the lower strap, making the wearing and taking off of the mask body more convenient and quick, and more comfortable to use. At the same time, the volume when not worn can be reduced, making it convenient to store and carry. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the front three-dimensional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the internal three-dimensional structure of the filter assembly of the utility model;

[0018] Figure 3 This is a cross-sectional schematic diagram of one side of the filter assembly of the utility model;

[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of the disassembly seat of the utility model;

[0020] Figure 5 This is a schematic diagram of the three-dimensional structure of the air intake valve plate of the utility model;

[0021] Figure 6 This is a schematic diagram of the three-dimensional structure of the locking assembly of the utility model;

[0022] Figure 7 This is a schematic diagram of the three-dimensional structure of the ratchet of the utility model;

[0023] Figure 8 It is a schematic diagram of the three-dimensional structure of the card block of the utility model.

[0024] In the figure: 1. Mask body; 2. Upper strap; 3. Lower strap; 4. Valve housing; 5. Heat-conducting sheet; 6. Silicone grease pad; 7. Heating air duct; 8. Inlet valve sheet; 9. Exhaust valve sheet; 10. Disassembly seat; 11. Inhalation channel; 12. Exhaust channel; 13. Filter sheet; 14. Absorbent cotton core; 15. Upper winding box; 16. Lower winding box; 17. Winding roller; 18. Rotating shaft; 19. Coil spring; 20. Ratchet; 21. Press key; 22. Block; 23. Ratchet; 24. Shrapnel; 25. Fixed seat; 26. Sealing ring. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] like Figures 1 to 8 The antifreeze half mask shown comprises: a mask body 1, the outer portion of the mask body 1 is a nylon layer, the inner portion of the mask body 1 is provided with a pure cotton interlayer, an upper tie 2 and a lower tie 3 are fixedly installed on one side of the mask body 1, and the upper tie 2 is located above the lower tie 3; a filter assembly, which is fixedly installed on one side of the mask body 1 in a symmetrical manner, and the filter assembly is used to filter and heat the cold air, and the filter assembly is used to collect the generated condensed water; a locking assembly, which is fixedly installed on one side of the mask body 1, and the locking assembly is used to tighten and release the upper tie 2 and the lower tie 3;

[0027] When not worn, the upper strap 2 and the lower strap 3 will automatically retract under the action of the locking component to reduce the storage volume. When worn, it is necessary to press the locking component to stretch the upper strap 2 and the lower strap 3. After the upper strap 2 and the lower strap 3 are stretched over the back of the head, the upper strap 2 and the lower strap 3 will automatically retract under the action of the locking component to fix the mask body 1 on the wearer's head. At the same time, the locking component can prevent the upper strap 2 and the lower strap 3 from stretching when not pressed, and can loosen the upper strap 2 and the lower strap 3 during strenuous exercise to prevent them from falling. The filter component can filter and heat the cold air and collect the generated condensed water to prevent the condensed water from clogging the air inlet and outlet, making it more convenient to use.

[0028] like Figures 1 to 4As shown, the filter assembly includes a valve housing 4 fixedly mounted on one side of the mask body 1, a heat conducting sheet 5 fixedly mounted inside the valve housing 4, a grille is arranged on the heat conducting sheet 5, a silicone grease pad 6 is fixedly mounted on one side of the heat conducting sheet 5, a plurality of heating air ducts 7 are fixedly mounted inside the silicone grease pad 6, an air inlet valve sheet 8 and an air outlet valve sheet 9 are mounted on the side of the valve housing 4 connected to the mask body 1, the air inlet valve sheet 8 is connected to the heating air duct 7, the air outlet valve sheet 9 is connected to the heat conducting sheet 5, a disassembly seat 10 is mounted on the bottom buckle of the valve housing 4, and the internal opening of the disassembly seat 10 is An air intake channel 11 and an air outlet channel 12 are provided, the air intake channel 11 is connected to the heating air duct 7, the air outlet channel 12 is connected to the heat conducting sheet 5, the air inlet of the air intake channel 11 is located on one side inner wall of the air intake channel 11, the air outlet of the air intake channel 11 is located at the top of the air intake channel 11, the air inlet of the air outlet channel 12 is located at the top of the air outlet channel 12, the air outlet of the air outlet channel 12 is located on both sides of the inner wall of the air outlet channel 12, a filter sheet 13 is fixedly installed at the air inlet of the air intake channel 11, and a water-absorbing cotton core 14 is placed at the bottom of the air outlet channel 12;

[0029] When exhaling, the air inlet valve plate 8 blocks the heating air duct 7, and the gas enters the heat conducting plate 5 through the air outlet valve plate 9. When the exhaled hot air passes through the heat conducting plate 5, the heat is absorbed by the grille on the heat conducting plate 5 and condensed into condensed water on the inner wall of the heat conducting plate 5. The condensed water flows along the inner wall of the heat conducting plate 5 to the absorbent cotton core 14 and is absorbed by the absorbent cotton core 14. The gas is discharged to the outside through the air outlet channel 12. When inhaling, the air outlet valve plate 9 blocks the heat conducting plate 5, and the cold air enters the heating air duct 7 after being filtered by the filter plate 13. The heat absorbed by the heat conducting plate 5 from the exhaled gas is absorbed by the silicone pad 6 and conducted to the heating air duct 7. The cold air is heated by the heating air After the tube 7 is heated, it is inhaled by people through the air intake valve plate 8. Compared with the prior art, the heat absorbed by the heat conductive plate 5 is stored in the silicone pad 6, and then the heating air duct 7 is heated by the silicone pad 6, thereby avoiding a large amount of heat loss caused by the inability to inhale and exhale at the same time, so that the heating effect of the cold air is better. At the same time, the detachable disassembly seat 10 is set, the condensed water can be collected to avoid clogging the air inlet and outlet channels 12, and the filter plate 13 and the absorbent cotton core 14 can be easily replaced. After using it for a period of time, the disassembly seat 10 can be directly replaced, and there is no need to frequently replace the mask body 1, which is more practical.

[0030] like Figure 5 As shown, the air inlet valve plate 8 is a rubber part, a fixing seat 25 is fixedly installed in the middle of the air inlet valve plate 8, and the fixing seat 25 is a PET plastic part. A sealing ring 26 is arranged on one side of the air inlet valve plate 8, and the sealing ring 26 faces the heating air duct 7. The air outlet valve plate 9 has the same structure as the air inlet valve plate 8, but the installation direction is opposite;

[0031] When exhaling, the hot air will push the air inlet valve plate 8 and the air outlet valve plate 9 at the same time, and the sealing ring 26 on the air inlet valve plate 8 will cover the heating air duct 7, so that the hot air cannot enter the heating air duct 7 through the air inlet valve plate 8, and the air outlet valve plate 9 is installed in the opposite direction to the air inlet valve plate 8. The air outlet valve plate 9 is deformed under the push of the hot air, and the gas enters the heat conducting plate 5 from the air outlet valve plate 9. When inhaling, the air outlet valve plate 9 covers the heat conducting plate 5, and the cold air cannot enter the air outlet valve plate 9 from the heat conducting plate 5. At this time, the air inlet valve plate 8 is deformed under the push of the cold air, and the gas enters the air inlet valve plate 8 from the heating air duct 7. Compared with the prior art, the elasticity of the air inlet valve plate 8 and the air outlet valve plate 9 is used to realize the one-way valve function, which can improve stability, reduce volume and weight, do not need to use springs, and have lower manufacturing costs.

[0032] like Figure 1 , Figure 6 , Figure 7 and Figure 8 As shown, the locking assembly includes an upper winding box 15 fixedly mounted on one side of the mask body 1, a lower winding box 16 is fixedly mounted on the bottom of the upper winding box 15, and one side of the upper winding box 15 and the lower winding box 16 are both provided with through grooves adapted to the upper lace 2 and the lower lace 3, a winding roller 17 and a rotating shaft 18 are rotatably mounted on the bottom of the upper winding box 15, and the winding roller 17 and the rotating shaft 18 are driven by gear meshing, the bottom of the winding roller 17 passes through the top of the lower winding box 16, and the winding roller 17 is rotatably connected to the bottom of the lower winding box 16, and one end of the upper lace 2 and the lower lace 3 passes through the upper winding box 15 and the lower winding box 16. The rotating shaft 18 is fixed with a coil spring 19, and the other end of the coil spring 19 is fixedly mounted on the inner wall of one side of the upper winding box 15. A ratchet 20 is fixedly mounted on the rotating shaft 18, and the ratchet 20 is located above the coil spring 19. A pressing key 21 is hingedly mounted on the bottom of the opening on one side of the upper winding box 15, and a card block 22 is fixedly mounted on one side of the pressing key 21. The card block 22 is a PET plastic part, and a ratchet 23 is fixedly arranged on the inner wall of one side of the card block 22. The ratchet 23 is adapted to the ratchet 20, and a spring piece 24 is fixedly arranged on one side of the card block 22 in a symmetrical manner, and the spring piece 24 is U-shaped;

[0033] When the push button 21 is not pressed, the rotating shaft 18 is driven to rotate by the coil spring 19, and the rotating shaft 18 drives the winding roller 17 to rotate through the gear to wind up the upper strap 2 and the lower strap 3, and the pawl 23 is pushed toward the ratchet 20 by the spring sheet 24. At this time, the pawl 23 blocks the ratchet 20 to prevent the winding roller 17 from rotating in the opposite direction, and the upper strap 2 and the lower strap 3 cannot be stretched. When worn, the mask body 1 can be prevented from falling off during intense exercise, and the volume when not worn can also be reduced, which is convenient for storage and carrying. When removing the mask body 1, just press the push button 21. The push button 21 pushes the block 22 to squeeze the spring piece 24. The spring piece 24 is deformed and moves the pawl 23 away from the ratchet 20. At this time, the ratchet 20 can be reversed, and the upper strap 2 and the lower strap 3 no longer have a self-locking effect. The mask body 1 can be directly pulled off the head. Compared with the prior art, by setting a locking component, the mask body 1 can be put on and taken off more conveniently and quickly, and the comfort of use is better. At the same time, the volume when not worn can be reduced, which is convenient for storage and carrying.

[0034] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An antifreeze half mask, characterized in that: include: A mask body (1), wherein an upper strap (2) and a lower strap (3) are fixedly mounted on one side of the mask body (1), wherein the upper strap (2) is located above the lower strap (3); a filter assembly, which is fixedly mounted on one side of the mask body (1) in a symmetrical manner, wherein the filter assembly is used to filter and heat cold air, and wherein the filter assembly is used to collect generated condensed water, and wherein the filter assembly comprises a valve housing (4) fixedly mounted on one side of the mask body (1), wherein a heat conducting sheet (5) is fixedly mounted inside the valve housing (4), wherein a grille is provided on the heat conducting sheet (5), and wherein one side of the heat conducting sheet (5) is provided with a grille. A silicone pad (6) is fixedly installed on the side, and a plurality of groups of heating air ducts (7) are fixedly installed inside the silicone pad (6); an air inlet valve plate (8) and an air outlet valve plate (9) are installed on the side of the valve housing (4) connected to the mask body (1), the air inlet valve plate (8) is connected to the heating air duct (7), and the air outlet valve plate (9) is connected to the heat conductive plate (5); a disassembly seat (10) is installed at the bottom buckle of the valve housing (4); a locking assembly is fixedly installed on one side of the mask body (1), and the locking assembly is used to tighten and release the upper strap (2) and the lower strap (3).

2. The antifreeze half mask according to claim 1, characterized in that: The locking assembly comprises an upper winding box (15) fixedly mounted on one side of the mask body (1), a lower winding box (16) fixedly mounted on the bottom of the upper winding box (15), a through slot matched with the upper lace (2) and the lower lace (3) being provided on one side of the upper winding box (15) and the lower winding box (16), a winding roller (17) and a rotating shaft (18) being rotatably mounted on the bottom of the upper winding box (15), the winding roller (17) and the rotating shaft (18) being driven by gear meshing, the bottom of the winding roller (17) passing through the top of the lower winding box (16), the winding roller (17) being rotatably connected to the bottom of the lower winding box (16), the upper winding box (15) and the lower winding box (16) being rotatably mounted on the bottom of the upper winding box (15). One end of the belt (2) and the lower tie (3) pass through the through slots on the upper winding box (15) and the lower winding box (16), and are wound around the winding roller (17); a coil spring (19) is fixedly mounted on the rotating shaft (18); the other end of the coil spring (19) is fixedly mounted on an inner wall of one side of the upper winding box (15); a ratchet (20) is fixedly mounted on the rotating shaft (18); the ratchet (20) is located above the coil spring (19); a push button (21) is hingedly mounted on the bottom of an opening on one side of the upper winding box (15); a clamping block (22) is fixedly mounted on one side of the push button (21); the clamping block (22) is adapted to the ratchet (20).

3. The antifreeze half mask according to claim 1, characterized in that: The air intake valve plate (8) is a rubber part. A fixing seat (25) is fixedly mounted in the middle of the air intake valve plate (8). The fixing seat (25) is a PET plastic part. A sealing ring (26) is arranged on one side of the air intake valve plate (8). The air outlet valve plate (9) has the same structure as the air intake valve plate (8) but is installed in the opposite direction.

4. The antifreeze half mask according to claim 1, characterized in that: An air intake channel (11) and an air outlet channel (12) are provided inside the disassembly seat (10); the air intake channel (11) is connected to the heating air duct (7); the air outlet channel (12) is connected to the heat conducting plate (5); the air inlet of the air intake channel (11) is located on an inner wall of one side of the air intake channel (11); the air outlet of the air intake channel (11) is located at the top of the air intake channel (11); the air inlet of the air outlet channel (12) is located at the top of the air outlet channel (12); the air outlet of the air outlet channel (12) is located on inner walls on both sides of the air outlet channel (12); a filter plate (13) is fixedly installed at the air inlet of the air intake channel (11); and a water-absorbing cotton core (14) is placed at the bottom of the air outlet channel (12).

5. The antifreeze half mask according to claim 2, characterized in that: The card block (22) is a PET plastic part. A ratchet (23) is fixedly arranged on an inner wall of one side of the card block (22). The ratchet (23) is matched with the ratchet wheel (20). A spring piece (24) is fixedly arranged on one side of the card block (22) in a symmetrical manner. The spring piece (24) is U-shaped.

6. The antifreeze half mask according to claim 1, characterized in that: The outside of the mask body (1) is a nylon layer, and the inside of the mask body (1) is provided with a pure cotton interlayer.

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