Chemical protective clothing with acid and alkali resistance function and use method thereof

Abstract

The present invention discloses a chemical protective suit with acid and alkali resistance function and a method for using the same, relating to the technical field of chemical protective suits. In order to solve the problem that the chemical protective suit, due to the large mass and volume of the mask, will cause the fabric of the hood area to fall downward, thereby affecting the wearer's line of sight, the user needs to stop the work at hand to adjust the chemical protective suit to ensure that the line of sight can pass through the mask, and repeated adjustments will affect the user's work efficiency and mood. A mask is provided at the middle position of the front end of the hood area, a hood shell is provided at the upper end of the inner side of the hood area, a cooling hood shell is provided at the front end of the hood shell, a fixed hood is fixedly provided inside the hood shell, a mask locking sleeve is provided at the lower end of the inner wall of the cooling hood shell, a limiting block groove is provided inside the mask locking sleeve, a mask limiting strip is slidably provided inside the limiting block groove, and a spunbond polypropylene non-woven fabric layer is provided on the inner side of the protective suit.

Description

Technical Field

[0001] The present invention relates to the technical field of chemical protective clothing, in particular to a chemical protective clothing with acid and alkali resistance function and a use method thereof. Background Art

[0002] Chemical protective clothing is divided into lightweight and heavy-duty protective clothing. Heavy-duty protective clothing can be made of multiple layers of high-performance chemical-resistant composite materials. It offers excellent properties such as tear resistance, puncture resistance, abrasion resistance, flame retardancy, heat resistance, insulation, and waterproof sealing. It can fully protect against a variety of toxic and hazardous liquid, gaseous, fume-forming, and solid chemicals. Airtight protective clothing is generally made of neoprene, which is corrosion-resistant to a variety of different chemicals and is well-suited for use in both cold and hot environments. Heavy-duty protective clothing is generally equipped with a respirator.

[0003] The Chinese patent publication number is CN209575553U, and the authorization announcement date is November 5, 2018. It discloses a chemical protective suit comprising: a top with sleeves integral with the top, inserts provided at the armpits of the sleeves, and an opening and closing structure provided on the top for opening the top; bottoms integral with the top, including left and right trouser legs; and a hat connected to the top. The armpit inserts provided in this application effectively increase the range of motion of the one-piece sleeve top.

[0004] Although the chemical protective suits in the prior art can effectively increase the range of motion of the one-piece sleeve top, if the protective suit does not have a mask, protective goggles and a gas mask need to be worn for protection. Toxic and harmful liquids, gases and smoke can easily contaminate the user through the gaps between the protective goggles, the gas mask and the protective suit, affecting the safety when wearing. If a mask is worn, the mask and the hood area are an integrated structure, which can be effectively sealed. However, due to the large mass and volume of the mask, the fabric in the hood area will fall down, thereby affecting the wearer's vision. The user needs to stop the work at hand and adjust the chemical protective suit to ensure that the line of sight can pass through the mask. Repeated adjustments will affect the user's work efficiency and mood. Therefore, we propose a chemical protective suit with acid and alkali resistance and a method of use thereof to solve the above-mentioned problems. Summary of the Invention

[0005] The object of the present invention is to provide a chemical protective suit with acid and alkali protection function and a method of using the same, so as to solve the problem in the above-mentioned background technology that the chemical protective suit, due to the large mass and volume of the mask, will cause the fabric in the headgear area to fall downward, thereby affecting the wearer's vision, requiring the user to stop the work at hand to adjust the chemical protective suit to ensure that the line of sight can pass through the mask, and repeated adjustments will affect the user's work efficiency and mood.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a chemical protective suit with acid and alkali resistance, comprising a protective suit, wherein a torso area is provided in the middle position of the protective suit, a hood area is sealed above the torso area, sleeve areas are sealed on both sides of the torso area, a trouser area is provided below the torso area, anti-corrosion insulating boots are sealed below the trouser area, gloves are sealed below the sleeve area, a mask is provided in the middle position of the front end of the hood area, and the edge of the mask is sealed to the hood area, a hood shell is provided at the upper end of the inner side of the hood area, and a cooling The cover shell body has a fixed cover fixedly provided inside the head cover shell body, a mask locking sleeve is provided at the lower end of the inner wall of the cooling cover shell body, a limiting block groove is provided inside the mask locking sleeve, a mask limiting strip is slidingly provided inside the limiting block groove, and the mask limiting strip is fixedly connected to the upper end of the mask, a spunbond polypropylene non-woven fabric layer is provided on the inner side of the protective suit, a rubber layer is provided on the outer side of the spunbond polypropylene non-woven fabric layer, a first acid- and alkali-proof strip and a second acid- and alkali-proof strip are staggered on the outer side of the rubber layer, the first acid- and alkali-proof strip and the second acid- and alkali-proof strip are composed of a plurality of equidistant protective protrusions, and a wax layer is provided on the outer surfaces of the first acid- and alkali-proof strip and the second acid- and alkali-proof strip.

[0007] Preferably, an isolation groove is provided between the spunbond polypropylene non-woven fabric layer and the rubber layer, the first acid and alkali proof strip is located between adjacent second acid and alkali proof strips, the protective protrusion is a U-shaped structure, and adjacent protective protrusions are sealed and connected.

[0008] Preferably, a fixing belt is provided below the fixed cover, and the upper end of the fixing belt is mounted on the outside of the fixed cover, a cooling groove is provided between the cooling cover shell and the hood shell, a cooling fan is provided at the lower end of the cooling groove, a battery is provided on one side of the sleeve area, and the battery is electrically connected to the cooling fan, an air inlet groove is provided on one side of the upper end of the hood shell, and the air inlet groove is communicated with the cooling groove and the interior of the hood shell.

[0009] Preferably, a first limiting tooth is provided at the front end of the inner side of the mask locking sleeve, one side of the mask limiting strip is meshed with the first limiting tooth, the mask limiting strip is an arc-shaped block, a limiting block is provided on one side of the mask limiting strip, and the rear end face of the mask limiting strip is fitted with the front end face of the limiting block, and a first compression spring is provided between the side of the limiting block away from the mask limiting strip and the mask locking sleeve.

[0010] Preferably, pressing strip sleeves are symmetrically provided on both sides of the front end of the mask locking sleeve, a pressing strip is provided inside the pressing strip sleeve, one end of the pressing strip passes through the mask locking sleeve and is fixedly connected to the mask limiting strip, and the pressing strip is slidably connected to the mask locking sleeve, and a protective film is provided at the front end of the pressing strip sleeve, and the protective film fits against the inner wall of the head cover area.

[0011] Preferably, a zipper area is provided on the torso area, a first outer zipper edge is provided at one end of the zipper area, a second outer zipper edge is provided at one end of the zipper area, and an outer zipper is provided between the first outer zipper edge and the second outer zipper edge, a first inner zipper edge is sewn at the rear end of the first outer zipper edge, a second inner zipper edge is sewn at the rear end of the second outer zipper edge, an inner zipper is provided between the second inner zipper edge and the first inner zipper edge, and the inner zipper and the outer zipper are staggered.

[0012] Preferably, the front end of the first outer zipper edge is sewn with an outer sealing strip, the front end of the second outer zipper edge is fixedly provided with an inner locking block, and the inner locking block is a concave structure, the rear end of the outer sealing strip is fixedly provided with an outer locking block, and the outer locking block is a convex structure, the front end of the inner locking block is provided with an inner magnetic strip, and outer magnetic strips are symmetrically provided on both sides of the rear end of the outer locking block, and the outer magnetic strips correspond to the inner magnetic strips.

[0013] Preferably, an exhaust one-way valve is provided on one side of the front end of the torso area, a sealing test one-way air inlet valve is provided on the other side of the front end of the torso area, and a pressure gauge is provided on the lower sewn seal of the front end of the headgear area, and the pressure gauge is communicated with the interior of the protective suit.

[0014] A method for using chemical protective clothing with acid and alkali resistance, comprising the following steps:

[0015] Step 1: When donning chemical protective clothing, the user first puts on a gas mask and oxygen cylinder, puts the legs into the trouser area, puts the feet into the anti-corrosion insulating boots, then puts one hand into the sleeve area on the side of the seal test one-way air inlet valve, puts the head into the hood area, puts the fixed hood on the head, adjusts the fixing strap so that it buckles on the chin, and turns on the cooling fan to allow air to pass through the cooling slot and the air inlet slot into the hood shell, thereby cooling the user's head;

[0016] Step 2: Adjust the position of the mask by pressing the pressing bar. The pressing bar moves the mask limit bar to the side close to the limit block, releasing the lock between the first limit tooth and the mask limit bar. At this time, adjust the mask limit bar up and down. When the position adjustment is completed, release the pressing bar. At the same time, the setting of the first compression spring pushes the limit block toward the mask limit bar. The first limit tooth re-engages with the mask limit bar, thereby locking the height of the mask. Then put on the sleeve area on the other side.

[0017] Step 3: Seal the protective suit through the zipper area. First, close the first inner zipper edge and the second inner zipper edge through the inner zipper, then close the first outer zipper edge and the second outer zipper edge through the outer zipper, and then fit the outer sealing strip to the second outer zipper edge. The magnetic force of the inner and outer magnetic strips causes the outer locking block to adsorb to the inner locking block, thereby preventing external liquid and gas from entering the protective suit.

[0018] Step 4: Open the sealing test one-way air inlet valve, seal the air inlet pipe to the sealing test one-way air inlet valve, and input air into the sealing test one-way air inlet valve through the air pump. When the protective suit is inflated and saturated, adjust the air intake volume and the air output volume of the exhaust one-way valve to be the same. At this time, observe whether the internal air pressure of the protective suit detected by the pressure gauge is stable. When the air pressure is unstable, it means that the protective suit is not worn properly, and it should be put on again. When it is stable, stop inflating and separate the air inlet pipe from the sealing test one-way air inlet valve, and then close the sealing test one-way air inlet valve to complete the wearing of the protective suit.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The invention provides a hood shell in the head cover area, and the hood shell is fixed to the user's head by a fixing hood and a fixing belt, and the hood shell is fixedly connected to the cooling hood shell. By fixing the hood shell to the user's head, the weight of the mask can be transferred to the head, thereby effectively preventing the mask from falling down due to the weight. The height of the mask can be adjusted by the cooperation of the mask locking sleeve and the mask limit strip. The first limit tooth and the mask limit strip are meshed and connected to achieve the limit after the height adjustment. The first compression spring can push the limit block to the middle position of the rear end of the mask limit strip. At the same time, the setting of the second compression spring pushes the front end of the pressing strip protective clothing, and the mask limit strip pushes the two sides of the front end of the mask limit strip, thereby locking the height of the mask, solving the problem that the fabric of the head cover area of ​​the chemical protective clothing will fall down due to the large weight and volume of the mask, thereby affecting the wearer's line of sight, requiring the user to stop the work at hand to adjust the chemical protective clothing to ensure that the line of sight can pass through the mask, and repeated adjustments will affect the user's work efficiency and mood. The present invention connects an external air intake pipe by arranging a sealing test one-way air intake valve, thereby injecting air from the outside. When the protective suit is saturated, the sealing of the protective suit when worn can be tested through the change of air pressure inside the protective suit. When the protective suit is just put on, the method can be used to check whether the wearing is sealed, thereby ensuring the safety of the user when entering the chemical area. When the protective suit needs to be taken off after the operation is completed, the method can be used to check whether the protective suit is accidentally damaged during the operation. When the protective suit is found to be damaged, the user can be informed in time and deal with it, thereby effectively improving the safety of wearing the protective suit. The present invention improves the original sealing performance by arranging a double setting of a spunbond polypropylene non-woven fabric layer and a rubber layer. At the same time, an isolation groove is provided between the spunbond polypropylene non-woven fabric layer and the rubber layer. The setting of the isolation groove allows the protective clothing to maintain its sealing performance through the spunbond polypropylene non-woven fabric layer even if the rubber layer is damaged. The multiple micron-level protective protrusions of the first acid and alkali proof strip and the second acid and alkali proof strip are provided, and the gaps between the protective protrusions are extremely small. The liquid in contact with them cannot enter the gaps between the protective protrusions due to the surface and the liquid is thus separated, making it difficult for the liquid to stay on the surface of the protective clothing. The wax layer can quickly remove water droplets, and the wax layer contains antibacterial ingredients, which can reduce the growth of bacteria on the surface of plant leaves. The present invention can be set as three layers at the connecting seam by arranging the first inner zipper edge and the second inner zipper edge, the first outer zipper edge and the second outer zipper edge and the outer sealing strip. At the same time, the two inner zippers and the outer zipper are all sealed zippers, which can effectively improve the sealing performance of the protective clothing. At the same time, the outer sealing strip and the second outer zipper edge are sealed by the matching inner locking block and the outer locking block. The setting of the inner magnetic strip and the outer magnetic strip is more stable than the traditional magic patch connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is the front view of the present invention;

[0022] Figure 2Schematic diagram of the partial structure of the protective clothing of the present invention;

[0023] Figure 3 Schematic diagram of the structure of the headgear area in the present invention;

[0024] Figure 4 For the present invention Figure 3 A partial enlarged view of area A;

[0025] Figure 5 A diagram showing the connection between the mask locking sleeve and the mask limiting strip in the present invention;

[0026] Figure 6 Schematic diagram of the structure of the zipper area in the present invention.

[0027] In the figure: 1. Protective clothing; 2. Head cover area; 3. Mask; 4. Sleeve area; 5. Torso area; 6. Gloves; 7. Trouser leg area; 8. Anti-corrosion insulating boots; 9. Spunbond polypropylene non-woven fabric layer; 10. Rubber layer; 11. First acid and alkali proof strip; 12. Second acid and alkali proof strip; 13. Protective bumps; 14. Wax layer; 15. Exhaust one-way valve; 16. Sealing test one-way air inlet valve; 17. Cooling hood shell; 18. Hood shell; 19. Cooling tank; 20. Cooling fan; 21. Fixed hood; 22. Fixed belt; 23. Mask lock Fixed sleeve; 24. Zipper area; 25. First limiting tooth; 26. Mask limiting strip; 27. Limiting block; 28. First compression spring; 29. ​​Pressing strip sleeve; 30. Limiting block groove; 31. Protective film; 32. Pressing strip; 36. First outer zipper edge; 37. Second outer zipper edge; 38. First inner zipper edge; 39. Inner zipper; 40. Outer zipper; 41. Outer sealing strip; 42. Inner locking block; 43. Outer locking block; 44. Inner magnetic strip; 45. Outer magnetic strip; 46. Second inner zipper edge; 47. Barometer; 48. Air inlet slot. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] See also Figure 1-6, an embodiment of the present invention provides: a chemical protective suit with acid and alkali resistance, comprising a protective suit 1, a torso area 5 is provided in the middle position of the protective suit 1, a hood area 2 is sealed above the torso area 5, sleeve areas 4 are sealed on both sides of the torso area 5, a trouser area 7 is provided below the torso area 5, anti-corrosion insulating boots 8 are sealed and connected below the trouser area 7, gloves 6 are sealed and connected below the sleeve area 4, a mask 3 is provided in the middle position of the front end of the hood area 2, and the edge of the mask 3 is sealed and connected to the hood area 2 by gluing, a hood shell 18 is provided at the upper end of the inner side of the hood area 2, a cooling hood shell 17 is provided at the front end of the hood shell 18, and a fixed fixed part is fixed inside the hood shell 18. The cover 21 and the cooling cover shell 17 are provided with a mask locking sleeve 23 at the lower end of the inner wall, and a limit block groove 30 is provided inside the mask locking sleeve 23. A mask limit strip 26 is slidingly provided inside the limit block groove 30, and the mask limit strip 26 is fixedly connected to the upper end of the mask 3 by an integral molding method. A spunbond polypropylene non-woven fabric layer 9 is provided on the inner side of the protective suit 1, and a rubber layer 10 is provided on the outer side of the spunbond polypropylene non-woven fabric layer 9. The outer side of the rubber layer 10 is staggeredly provided with a first acid and alkali proof strip 11 and a second acid and alkali proof strip 12 by gluing. The first acid and alkali proof strip 11 and the second acid and alkali proof strip 12 are composed of a plurality of equidistantly arranged protective protrusions 13, and the outer surfaces of the first acid and alkali proof strip 11 and the second acid and alkali proof strip 12 are provided with a wax layer 14 by gluing.

[0030] See also Figure 2 An isolation groove is provided between the spunbond polypropylene non-woven fabric layer 9 and the rubber layer 10. The isolation groove is an isolation layer and is filled with carbon dioxide gas. The first acid and alkali proof strip 11 is located between the adjacent second acid and alkali proof strips 12. The protective protrusion 13 is a U-shaped structure, and the adjacent protective protrusions 13 are sealed and connected.

[0031] See also Figure 3-5 A fixing strap 22 is provided below the fixed cover 21, and the upper end of the fixing strap 22 is fitted over the exterior of the fixed cover 21. The cooling cover shell 17, the hood shell 18, and the fixed cover 21 are constructed from thermoplastic polymer materials. A cooling trough 19 is provided between the cooling cover shell 17 and the hood shell 18, and a cooling fan 20 is located at the lower end of the cooling trough 19. Specifically, the mounting bracket for the cooling fan 20 is fixedly connected to the cooling cover shell 17 and the hood shell 18 using screws or other means. A battery is provided on one side of the sleeve area 4 and is electrically connected to the cooling fan 20. An air inlet slot 48 is provided on one side of the upper end of the hood shell 18, and the air inlet slot 48 communicates with the cooling trough 19 and the interior of the hood shell 18.

[0032] A first limiting tooth 25 is provided at the front end of the inner side of the mask locking sleeve 23, and one side of the mask limiting strip 26 is meshed with the first limiting tooth 25. The mask limiting strip 26 is an arc-shaped block, and a limiting block 27 is movably provided on one side of the mask limiting strip 26, and the rear end surface of the mask limiting strip 26 is in contact with the front end surface of the limiting block 27. A first compression spring 28 is provided between the side of the limiting block 27 away from the mask limiting strip 26 and the mask locking sleeve 23. Specifically, the limiting block 27 can be floatingly assembled on the side wall of the mask locking sleeve 23 through the first compression spring 28.

[0033] A pressing strip 29 is symmetrically provided on both sides of the front end of the mask locking sleeve 23. The mask locking sleeve 23 and the pressing strip 29 are fixedly arranged. A pressing strip 32 is provided inside the pressing strip 29. One end of the pressing strip 32 passes through the mask locking sleeve 23 and is fixedly connected to the mask limiting strip 26. The pressing strip 32 is slidably connected to the mask locking sleeve 23. Specifically, the mask locking sleeve 23 is provided with a through hole. One end of the pressing strip 32 passes through the through hole and is fixedly connected to the mask limiting strip 26 by gluing or integral molding. A protective film 31 is fixedly provided between the front ends of the two pressing strips 29 by gluing or other means. The protective film 31 and the inner wall of the headgear area 2 can be movably fitted together.

[0034] See also Figure 6 A zipper area 24 is provided on the torso area 5, a first outer zipper edge 36 is provided at one end of the zipper area 24, a second outer zipper edge 37 is provided at one end of the zipper area 24, and an outer zipper 40 is provided between the first outer zipper edge 36 and the second outer zipper edge 37 for engaging the two with each other.

[0035] The rear end of the first outer zipper edge 36 is sewn with a first inner zipper edge 38, and the rear end of the second outer zipper edge 37 is sewn with a second inner zipper edge 46. An inner zipper 39 is provided between the second inner zipper edge 46 and the first inner zipper edge 38 for interlocking the two, and the inner zipper 39 is staggered with the outer zipper 40.

[0036] An outer sealing strip 41 is sewn on the front end of the first outer zipper edge 36, and an inner locking block 42 is fixedly provided on the front end of the second outer zipper edge 37 by sewing with needle and thread, and the inner locking block 42 is a concave structure. An outer locking block 43 is fixedly provided on the rear end of the outer sealing strip 41 by sewing with needle and thread, and the outer locking block 43 is a convex structure. The outer locking block 43 and the inner locking block 42 are interference fit.

[0037] Preferably, an inner magnetic strip 44 is fixed to the front end of the inner locking block 42 by gluing, and outer magnetic strips 45 are symmetrically fixed to both sides of the rear end of the outer locking block 43 by gluing, and the outer magnetic strips 45 correspond to the inner magnetic strips 44.

[0038] See also Figure 1 An exhaust one-way valve 15 is provided on one side of the front end of the torso area 5, and a sealing test one-way air inlet valve 16 is provided on the other side of the front end of the torso area 5. A pressure gauge 47 is provided at the lower sewing seal of the front end of the hood area 2, and the pressure gauge 47 is communicated with the interior of the protective suit 1.

[0039] A method for using chemical protective clothing with acid and alkali resistance, comprising the following steps:

[0040] Step 1: When donning the chemical protective suit, the user first puts on a gas mask and oxygen cylinder, puts the legs into the trouser leg area 7, puts the feet into the anti-corrosion insulating boots 8, then puts one hand into the sleeve area 4 on the side of the seal test one-way air inlet valve 16, puts the head into the hood area 2, puts the fixed hood 21 on the head, adjusts the fixing belt 22 so that it is buckled on the chin, and turns on the cooling fan 20. Air passes through the cooling slot 19 and the air inlet slot 48 into the hood shell 18, thereby cooling the user's head;

[0041] Step 2: Adjust the position of the mask 3 by pressing the pressing bar 32. The pressing bar 32 moves the mask limit bar 26 to the side close to the limit block 27, releasing the lock between the first limit tooth 25 and the mask limit bar 26. At this time, adjust the mask limit bar 26 up and down. When the position adjustment is completed, release the pressing bar 32. At the same time, the setting of the first compression spring 28 pushes the limit block 27 toward the mask limit bar 26. The first limit tooth 25 re-engages with the mask limit bar 26, thereby locking the height of the mask 3. Then put on the sleeve area 4 on the other side.

[0042] Step 3: The protective suit 1 is sealed through the zipper area 24. First, the first inner zipper edge 38 and the second inner zipper edge 46 are closed through the inner zipper 39, and then the first outer zipper edge 36 and the second outer zipper edge 37 are closed through the outer zipper 40. Then, the outer sealing strip 41 is attached to the second outer zipper edge 37. The magnetic attraction between the inner magnetic strip 44 and the outer magnetic strip 45 causes the outer locking block 43 to be correspondingly attracted to the inner locking block 42, thereby preventing external liquid and gas from entering the protective suit 1.

[0043] Step 4: Open the sealing test one-way air inlet valve 16, seal the air inlet pipe to the sealing test one-way air inlet valve 16, and input air to the sealing test one-way air inlet valve 16 through the air pump. When the protective suit 1 is inflated and saturated, adjust the air intake volume and the air output volume of the exhaust one-way valve 15 to be the same. At this time, observe whether the internal air pressure of the protective suit 1 detected by the barometer 47 is stable. When the air pressure is unstable, it means that the protective suit 1 is not worn properly, and it should be put on again. When it is stable, stop inflating and separate the air inlet pipe from the sealing test one-way air inlet valve 16, and then close the sealing test one-way air inlet valve 16 to complete the wearing of the protective suit 1.

[0044] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A chemical protective suit with acid and alkali resistance, comprising a protective suit (1), wherein a trunk region (5) is provided at the middle position of the protective suit (1), a hood region (2) is provided above the trunk region (5) in a sealed manner, sleeve regions (4) are provided on both sides of the trunk region (5), a trouser region (7) is provided below the trunk region (5), an anti-corrosion insulating boot (8) is sealed below the trouser region (7), and a glove (6) is sealed below the sleeve region (4), characterized in that: A mask (3) is provided at a middle position of the front end of the head cover area (2), and the edge of the mask (3) is sealedly connected to the head cover area (2); a head cover shell (18) is provided at the upper end of the inner side of the head cover area (2); a cooling cover shell (17) is provided at the front end of the head cover shell (18); a fixed cover (21) is fixedly provided inside the head cover shell (18); a mask locking sleeve (23) is provided at the lower end of the inner wall of the cooling cover shell (17); a limiting block groove (30) is provided inside the mask locking sleeve (23); a mask limiting block groove (30) is slidably provided inside the limiting block groove (30) The protective clothing (1) comprises a protective strip (26), and the mask limiting strip (26) is fixedly connected to the upper end of the mask (3); a spunbond polypropylene non-woven fabric layer (9) is provided on the inner side of the protective clothing (1); a rubber layer (10) is provided on the outer side of the spunbond polypropylene non-woven fabric layer (9); a first acid-base proof strip (11) and a second acid-base proof strip (12) are staggeredly provided on the outer side of the rubber layer (10); the first acid-base proof strip (11) and the second acid-base proof strip (12) are composed of a plurality of equally spaced protective protrusions (13); and a wax layer (14) is provided on the outer surface of the first acid-base proof strip (11) and the second acid-base proof strip (12); The method for using the chemical protective clothing with acid and alkali resistance function comprises the following steps: Step 1: When putting on the chemical protective suit, the user first puts on the gas mask and oxygen cylinder, puts the legs into the trouser leg area (7), puts the feet into the anti-corrosion insulating boots (8), and then puts one hand into the sleeve area (4) on the side of the sealing test one-way air inlet valve (16), puts the head into the hood area (2), puts the fixed cover (21) on the head, adjusts the fixing belt (22) so that it is buckled on the chin, turns on the cooling fan (20), and the air passes through the cooling groove (19) and the air inlet groove (48) into the hood shell (18), thereby cooling the user's head; Step 2: Adjust the position of the mask (3) by pressing the pressing bar (32). The pressing bar (32) moves the mask limit bar (26) toward the side close to the limit block (27), releasing the lock between the first limit tooth (25) and the mask limit bar (26). At this time, adjust the mask limit bar (26) up and down. When the position adjustment is completed, release the pressing bar (32). The setting of the second compression spring (35) increases the distance between the first fixing bar (33) and the second fixing bar (34), thereby achieving the reset of the pressing bar (32). At the same time, the setting of the first compression spring (28) pushes the limit block (27) toward the mask limit bar (26). The first limit tooth (25) re-engages with the mask limit bar (26), thereby locking the height of the mask (3). Then put on the sleeve area (4) on the other side. Step 3: The protective suit (1) is sealed through the zipper area (24), first, the first inner zipper edge (38) and the second inner zipper edge (46) are pulled together through the inner zipper (39), and then the first outer zipper edge (36) and the second outer zipper edge (37) are pulled together through the outer zipper (40), and then the outer sealing strip (41) is attached to the second outer zipper edge (37), and the outer locking block (43) and the inner locking block (42) are attracted to each other by the magnetic force of the inner magnetic strip (44) and the outer magnetic strip (45), thereby preventing external liquid and gas from entering the protective suit (1); Step 4: Open the one-way air inlet valve (16) for sealing test, connect the air inlet pipe to the one-way air inlet valve (16) in a sealed manner, and input air into the one-way air inlet valve (16) for sealing test through the air pump. When the protective suit (1) is inflated and saturated, adjust the air intake volume and the air output volume of the exhaust one-way valve (15) to be the same. At this time, observe whether the internal air pressure of the protective suit (1) detected by the barometer (47) is stable. If the air pressure is unstable, it means that the protective suit (1) is not worn properly. Put it on again. When it is stable, stop inflating and separate the air inlet pipe from the one-way air inlet valve (16). Then close the one-way air inlet valve (16) for sealing test, and the wearing of the protective suit (1) is completed.

2. The chemical protective clothing with acid and alkali resistance according to claim 1, characterized in that: An isolation groove is provided between the spunbond polypropylene non-woven fabric layer (9) and the rubber layer (10); the first acid-base resistant strip (11) is located between adjacent second acid-base resistant strips (12); the protective protrusions (13) are U-shaped structures, and adjacent protective protrusions (13) are sealed and connected.

3. The chemical protective clothing with acid and alkali resistance according to claim 2, characterized in that: A fixing belt (22) is provided below the fixed cover (21), and the upper end of the fixing belt (22) is sleeved on the outside of the fixed cover (21). A cooling groove (19) is provided between the cooling cover shell (17) and the head cover shell (18), and a cooling fan (20) is provided at the lower end of the cooling groove (19). A battery is provided on one side of the sleeve area (4), and the battery is electrically connected to the cooling fan (20). An air inlet groove (48) is provided on one side of the upper end of the head cover shell (18), and the air inlet groove (48) is connected to the cooling groove (19) and the inside of the head cover shell (18).

4. The chemical protective clothing with acid and alkali resistance according to claim 3, characterized in that: A first limiting tooth (25) is provided at the front end of the inner side of the mask locking sleeve (23), and one side of the mask limiting strip (26) is meshed with the first limiting tooth (25). The mask limiting strip (26) is an arc-shaped block, and a limiting block (27) is provided on one side of the mask limiting strip (26), and the rear end surface of the mask limiting strip (26) is in contact with the front end surface of the limiting block (27). A first compression spring (28) is provided between the side of the limiting block (27) away from the mask limiting strip (26) and the mask locking sleeve (23).

5. The chemical protective clothing with acid and alkali resistance according to claim 4, characterized in that: Pressing strip sleeves (29) are symmetrically arranged on both sides of the front end of the mask locking sleeve (23), and a pressing strip (32) is arranged inside the pressing strip sleeve (29). One end of the pressing strip (32) passes through the mask locking sleeve (23) and is fixedly connected to the mask limiting strip (26), and the pressing strip (32) is slidably connected to the mask locking sleeve (23). A protective film (31) is arranged at the front end of the pressing strip sleeve (29), and the protective film (31) is in contact with the inner wall of the headgear area (2).

6. The chemical protective clothing with acid and alkali resistance according to claim 5, characterized in that: The torso region (5) is provided with a zipper region (24), one end of the zipper region (24) is provided with a first outer zipper edge (36), one end of the zipper region (24) is provided with a second outer zipper edge (37), and an outer zipper (40) is provided between the first outer zipper edge (36) and the second outer zipper edge (37), a first inner zipper edge (38) is sewn to the rear end of the first outer zipper edge (36), a second inner zipper edge (46) is sewn to the rear end of the second outer zipper edge (37), an inner zipper (39) is provided between the second inner zipper edge (46) and the first inner zipper edge (38), and the inner zipper (39) and the outer zipper (40) are staggered.

7. The chemical protective clothing with acid and alkali resistance according to claim 6, characterized in that: The front end of the first outer zipper edge (36) is sewn with an outer sealing strip (41), the front end of the second outer zipper edge (37) is fixedly provided with an inner locking block (42), and the inner locking block (42) is a concave structure, the rear end of the outer sealing strip (41) is fixedly provided with an outer locking block (43), and the outer locking block (43) is a convex structure, the front end of the inner locking block (42) is provided with an inner magnetic strip (44), and the two sides of the rear end of the outer locking block (43) are symmetrically provided with outer magnetic strips (45), and the outer magnetic strips (45) correspond to the inner magnetic strips (44).

8. The chemical protective clothing with acid and alkali resistance according to claim 7, characterized in that: An exhaust one-way valve (15) is provided on one side of the front end of the torso region (5), a sealing test one-way air inlet valve (16) is provided on the other side of the front end of the torso region (5), and a pressure gauge (47) is provided at the lower part of the front end of the headgear region (2) through a suture seal, and the pressure gauge (47) is connected to the interior of the protective suit (1).

Images