Positive pressure biocontainment suit

Abstract

This invention belongs to the field of protective clothing technology and discloses a positive-pressure biological protective suit, including a protective suit, a face mask installed on the top of the protective suit, and an air supply system connected to the middle of the protective suit. It also includes: an inner lining, which is fixedly connected to the inner cavity of the protective suit; a blowpipe, which is installed on the top of the inner lining and whose outer wall is bonded to the protective suit; and a pull pipe, which is located inside the air supply system and connected to a curved pipe bonded to the inner lining. This invention, through the coordinated structure of the inner lining and the air supply system, achieves the effect of cooling the back area of ​​a person. The interior of the first connecting pipe is semi-closed. Gas blows onto one end of the two C-shaped compartments, causing them to flip. A pull rope pulls the inner lining, and the gas injected through the first connecting pipe between the inner lining and the positive-pressure protective suit body blows air from both ends of the pulled area into the pulled area through the inner lining slots, performing a back-blowing operation.

Description

Technical Field

[0001] This invention belongs to the field of protective clothing technology, specifically a positive pressure biological protective suit. Background Technology

[0002] Positive pressure biosafety protective clothing filters ambient air through a high-efficiency air filter in a powered air supply system to remove harmful microorganisms and particulate matter before directly supplying it into the protective clothing by a fan. When the gas flow rate supplied to the protective clothing is greater than the gas flow rate discharged through a one-way exhaust valve, the inside of the protective clothing is under positive pressure relative to the external environment. The pressure difference between the inside and outside of the protective clothing effectively isolates external microbial contaminants, thereby effectively protecting the wearer.

[0003] During high-temperature operations in summer, personnel sometimes need to enter confined spaces for rescue or search operations, or conduct hazard detection in narrow streets. Continuous high temperatures cause personnel to sweat profusely, and the sweat causes protective clothing to stick to their outer clothing, resulting in discomfort. Existing methods for cooling personnel based on protective clothing generally use external cooling units to blow air into the protective clothing for cooling. However, when blown by the wind, the protective clothing will bulge, making it difficult for personnel to move smoothly in confined spaces to avoid the protective clothing being scraped, thus significantly reducing the efficiency of search and rescue operations. At the same time, the cost of using external devices is relatively high, so improvements are needed. Summary of the Invention

[0004] To address the problem mentioned in the background art that high-temperature and confined space operations prevent personnel from working smoothly, the present invention provides a positive-pressure biological protective suit.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a positive pressure biological protective suit, comprising a protective suit, a face shield installed on the top of the protective suit, and an air supply system connected to the middle of the protective suit, further comprising: an inner lining, the inner lining being fixedly connected to the inner cavity of the protective suit; a blowpipe, the blowpipe being installed on the top of the inner lining and its outer wall being bonded to the protective suit; a pulling pipe, the pulling pipe being disposed inside the air supply system and connected to a curved pipe bonded to the inner lining; wherein, the pulling pipe includes C-shaped compartments disposed on the upper and lower sides of the inner cavity of the air supply system, and a first ventilation pipe is fixedly connected to the top of the C-shaped compartment, the first... The end of the ventilation pipe away from the C-shaped compartment is equipped with an air chamber fixedly connected to the air supply system. The end of the C-shaped compartment away from the first ventilation pipe is fixedly connected to a bend. The air supply system includes a fixing component, which specifically includes a first connecting pipe that snaps into the protective suit. An air outlet pipe is fixedly connected to the end of the inner cavity of the first connecting pipe away from the movable component, and a movable component movably connected inside the first connecting pipe. The blowing pipe includes a connecting module, which specifically includes a buckle pipe that abuts against the C-shaped compartment, and a second connecting pipe sleeved inside the buckle pipe. The second connecting pipe also has a first slot.

[0006] Preferably, the protective suit includes a positive pressure protective suit body, and the lower end of the positive pressure protective suit body near the air supply system side wall is fixed with a hook for locking the movable parts. The fabric of the positive pressure protective suit body is mainly composed of a woven base fabric and a polymer coating, and the hook facilitates the locking and fixing of the movable parts twice.

[0007] Preferably, the air supply system further includes a respirator fixedly connected to the protective suit. The top of the respirator is equipped with a breathing tube fixedly connected to the first connecting pipe. Activating the respirator allows gas to enter the interior of the first connecting pipe and the mask through the breathing tube, thereby providing air supply.

[0008] Preferably, the blowpipe includes a circular tube that is fixedly connected to the second connecting pipe and attached to the liner, and the inner wall of the circular tube has a plurality of flow grooves.

[0009] Preferably, the communication module includes a first spring that provides elastic support between the second connecting tube and the buckle tube.

[0010] The outer wall of the buckle tube has a circular groove corresponding to the first slot. In the initial state, the circular groove of the buckle tube does not correspond to the first slot and is intersected. At this time, there is no gas inside the second connecting tube.

[0011] Preferably, the end of the C-shaped compartment away from the first vent pipe is fixedly connected to a pull rope that is connected to the inner lining, and the interior of the air-filled compartment is fixedly connected to a second vent pipe that is fixedly connected to the first connecting pipe.

[0012] Water sources are placed on both sides of the inner cavity of the C-shaped chamber and are fixedly connected to the bend pipe. When the second vent pipe is filled with gas inside the first connecting pipe, the first vent pipe enters the interior of the C-shaped chamber. The first connecting pipe pushes the C-shaped chamber to flip, and the water inside the C-shaped chamber will be oblique. The gas inside the first vent pipe fills and presses against the gas, causing it to enter the interior of the bend pipe, and the bend pipe cools the back of the personnel.

[0013] Preferably, the lining has several slots inside, and the lining is bonded to the bent pipe.

[0014] Preferably, the movable component includes a pull ring that engages with the hook, and a baffle that is slidably connected to the top of the pull ring and the first connecting tube is fixedly connected to the top of the pull ring. A spring telescopic tube is elastically supported between the baffle and the first connecting tube.

[0015] Preferably, the end of the first connecting pipe that contacts the air outlet pipe is conical.

[0016] Preferably, the bend is S-shaped, and its two ends that connect to the C-shaped compartment are located at the top and bottom of the C-shaped compartment, respectively.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] This invention achieves the effect of cooling the back area of ​​personnel by setting up an inner lining and an air supply system. Pulling the pull ring, the inside of the first connecting tube is in a semi-closed state. The gas blows on the two C-shaped compartments at one end, causing them to flip. Pulling the rope moves the inner lining, releasing it from the body clothing. The gas injected by the first connecting tube between the inner lining and the positive pressure protective suit body will blow air from both ends of the pulled area into the back area through the inner lining groove.

[0019] This invention, through the combination of an air supply system and a blowpipe, enhances the cooling effect by blowing air onto the neck and cheek areas when the temperature continues to rise. The inner cavity of the first connecting pipe is fully opened, the flip angle of the C-shaped chamber is increased, the circular groove of the pressure buckle corresponds to the first slot, and the gas blows onto the neck of the person through the circular pipe, thus improving the cooling effect.

[0020] This invention achieves water circulation within the lining by incorporating a combination of a curved pipe and a C-shaped chamber. This, combined with the airflow inside the first connecting pipe, enhances the cooling effect. After the C-shaped chamber is flipped over, it becomes tilted. Some of the gas inside the first connecting pipe will pass through the second vent pipe, filling and pushing the water inside the C-shaped chamber, causing it to enter the curved pipe. The continuous blowing of the airflow causes the water inside the curved pipe to circulate and then re-enter the C-shaped chamber, completing the circulation effect. This circulation, combined with the gas in the first connecting pipe, further enhances the cooling effect. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the rear structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the side cross-sectional structure of the present invention;

[0024] Figure 4 This is a schematic diagram showing the structural fit between the liner and the first connecting pipe of the present invention;

[0025] Figure 5 This is a schematic diagram showing the structural fit between the circular tube and the connecting module of the present invention;

[0026] Figure 6 This is a schematic diagram showing the structural fit between the buckle and the first spring of the present invention;

[0027] Figure 7 This is a schematic diagram showing the structural fit between the second connecting pipe and the arc-shaped pipe of the present invention;

[0028] Figure 8 for Figure 7 A magnified schematic diagram of the local structure at point A;

[0029] Figure 9 This is a schematic diagram showing the structural fit between the arc-shaped tube and the second vent tube of the present invention.

[0030] Figure 10 for Figure 9 A magnified view of the structure at point B in the middle;

[0031] Figure 11 This is a schematic diagram showing the structural fit between the first spring and the C-shaped plate of the present invention.

[0032] In the diagram: 100, Protective suit; 101, Positive pressure protective suit body; 102, Hook; 200, Face mask; 300, Air supply system; 301, Respirator; 302, Breathing tube; 303, Fastener; 3031, First connecting tube; 3032, Exhaust tube; 400, Lining; 500, Blowpipe; 501, Circular tube; 502, Connecting module; 5021, Second connecting tube; 5022, First slot; 5023, Buckle tube; 5024, First spring; 600, Pull tube; 601, C-shaped compartment; 602, First ventilation tube; 603, Air chamber; 604, Pull rope; 605, Second ventilation tube; 700, Movable part; 701, Pull ring; 702, Baffle; 703, Spring telescopic tube; 800, Bend. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] like Figures 1 to 11 As shown, the present invention provides a positive pressure biological protective suit, including a protective suit 100, a face mask 200 installed on the top of the protective suit 100, and an air supply system 300 connected to the middle of the protective suit 100. It also includes: an inner lining 400, which is fixedly connected to the inner cavity of the protective suit 100; a blowpipe 500, which is installed on the top of the inner lining 400 and whose outer wall is bonded to the protective suit 100; and a pulling tube 600, which is disposed inside the air supply system 300 and connected to a bent tube 800 bonded to the inner lining 400. The pulling tube 600 includes two... The C-shaped compartment 601 on the side has a first ventilation pipe 602 fixedly connected to its top. An air chamber 603 fixedly connected to the air supply system 300 is installed at the end of the first ventilation pipe 602 away from the C-shaped compartment 601. The end of the C-shaped compartment 601 away from the first ventilation pipe 602 is fixedly connected to the bend pipe 800. The air supply system 300 includes a fixing member 303, which specifically includes a first connecting pipe 3031 that is snapped into the protective clothing 100. An air outlet pipe 3032 is fixedly connected to the end of the inner cavity of the first connecting pipe 3031 away from the movable member 700, and a movable member 700 that is movably connected inside the first connecting pipe 3031.

[0035] The blowpipe 500 includes a connecting module 502, which specifically includes a snap tube 5023 that abuts against and connects to the C-shaped chamber 601, and a second connecting tube 5021 sleeved inside the snap tube 5023. The second connecting tube 5021 also has a first slot 5022.

[0036] Using the above scheme: the gas located between the inner lining 400 and the positive pressure protective suit body 101 will be blown from both ends of the pulled area into the pulled area through the slots on the inner lining 400. The water source inside the curved pipe 800 will re-enter the interior of the C-type chamber 601 after circulation, completing the circulation effect. The circular pipe 501 blows air onto the neck of the personnel, improving the cooling treatment inside the personnel after wearing the positive pressure biological protective suit.

[0037] like Figure 3 and Figure 4 As shown, the protective suit 100 includes a positive pressure protective suit body 101. The lower end of the positive pressure protective suit body 101 near the side wall of the air supply system 300 is fixed with a hook 102 for engaging the movable part 700. The fabric of the positive pressure protective suit body 101 is mainly a woven base fabric with a polymer coating.

[0038] The above solution allows the hook 102 to secure the movable part 700 with two snaps. The design of the positive pressure protective suit body 101 fabric not only meets the design requirements for airtightness and has a certain pressure holding capacity, but also the surface coating material can prevent liquid pollutants from penetrating into the interior of the protective suit. At the same time, it is convenient to directly spray and disinfect, and it can be reused.

[0039] like Figure 4 As shown, the air supply system 300 also includes a respirator 301 fixedly connected to the protective suit 100. The top of the respirator 301 is equipped with a breathing tube 302 fixedly connected to the first connecting tube 3031. The respirator 301 is tied to the outer wall of the protective suit 100 and placed around the waist. When the respirator 301 is activated, gas enters the first connecting tube 3031 and the interior of the mask 200 through the breathing tube 302, thereby providing air supply.

[0040] like Figure 5 As shown, the blowpipe 500 includes a circular tube 501 that is fixed to the second connecting pipe 5021 and connected to the inner liner 400. The inner wall of the circular tube 501 is provided with several flow grooves. When the two C-shaped chambers 601 are filled with gas from the air outlet pipe 3032, they will abut against the buckle pipe 5023, causing the gas to enter the interior of the second connecting pipe 5021 until it flows into the interior of the circular tube 501. The flow grooves of the circular tube 501 are used to blow air onto the neck of the person to cool it down.

[0041] like Figure 6As shown, the connecting module 502 includes a first spring 5024 that provides elastic support between the second connecting pipe 5021 and the buckle pipe 5023. The outer wall of the buckle pipe 5023 has a circular groove corresponding to the first slot 5022. In the initial state, the circular groove of the buckle pipe 5023 does not correspond to the first slot 5022 and is intertwined. At this time, there is no gas inside the second connecting pipe 5021. When the C-shaped chamber 601 is filled with gas, the adjacent ends of the two C-shaped chambers 601 flip towards the side close to the bend pipe 800 and push the buckle pipe 5023, thereby making the second connecting pipe 5021 and the first connecting pipe 3031 connected, so that gas can enter the interior of the second connecting pipe 5021 and be cooled through the circular pipe 501.

[0042] like Figure 6 and Figure 7 As shown, the end of the C-shaped chamber 601 away from the first vent pipe 602 is fixedly connected to a pull rope 604 connected to the inner lining 400. The inside of the air chamber 603 is fixedly connected to a second vent pipe 605, which is fixedly connected to the first connecting pipe 3031. Water sources are placed on both sides of the inner cavity of the C-shaped chamber 601 and are fixedly connected to the bend pipe 800.

[0043] Using the above scheme: When the second vent pipe 605 is filled with gas from the first connecting pipe 3031, it will enter the interior of the C-shaped chamber 601 through the first vent pipe 602. At this time, the first connecting pipe 3031 pushes the C-shaped chamber 601 to flip, and the water inside the C-shaped chamber 601 will be oblique. The gas inside the first vent pipe 602 fills and presses the gas, causing it to enter the interior of the bend pipe 800. The bend pipe 800 is used to cool the back of the personnel. After the C-shaped chamber 601 flips, the inner lining 400 will be pulled towards the area close to the air supply system 300 by the pull rope 604 to avoid the inner lining 400 directly contacting the back of the person. The area that is pulled will be blown by the wind, thereby improving the cooling effect.

[0044] like Figure 4 and Figure 7 As shown, the movable part 700 includes a pull ring 701 that engages with the hook 102. The top of the pull ring 701 is fixedly connected to a baffle 702 that is slidably connected to the first connecting pipe 3031. A spring telescopic pipe 703 is elastically supported between the baffle 702 and the first connecting pipe 3031. The inner liner 400 has several slots inside. The inner liner 400 is bonded to the bent pipe 800.

[0045] Using the above scheme: When the pull ring 701 is pulled down for the first time, the top of the baffle 702 moves to the middle of the inner wall of the first connecting tube 3031, and the bottom of the pull ring 701 is stuck inside the first hook 102. At this time, the gas flow rate through the respirator 301 is relatively slow, and the bottom of the C-shaped chamber 601 will not abut against the buckle tube 5023, causing it to move. Conversely, when the pull ring 701 is pulled to buckle onto the second hook 102, the inside of the first connecting tube 3031 is fully opened. At this time, the bottom of the C-shaped chamber 601 will abut against the buckle tube 5023, causing the inside of the circular tube 501 to be filled with gas.

[0046] like Figure 4 and Figure 7 As shown, the bend 800 has an "S" shape, and its two ends connected to the C-shaped chamber 601 are located at the top and bottom of the C-shaped chamber 601, respectively. The end of the first connecting pipe 3031 that contacts the air outlet pipe 3032 is conical.

[0047] Using the above scheme: After the C-shaped chamber 601 is flipped, the water inside will enter the interior of the bend 800 through its bottom end. After flowing through the bend 800, the water will flow back into the C-shaped chamber 601 through the pipe connected to the top of the bend 801, achieving a circulation effect. Figure 7 It is evident that the conical design will be more conducive to the subsequent collection and propulsion of gas.

[0048] Working principle and usage process of this invention:

[0049] During use, pull the pull ring 701 to fasten it onto the first hook 102 (counting from top to bottom). The inside of the first connecting tube 3031 is in a semi-closed state. At this time, the gas filtered by the respirator 301 will enter the inside of the first connecting tube 3031 and blow on the end of the two C-shaped compartments 601 that are in contact, causing them to flip. At the same time, the top of the C-shaped compartment 601 will cause the pull rope 604 to pull the inner lining 400 towards the direction of the second connecting tube 5021. At this time, the area of ​​the inner lining 400 that is pulled will be released from the close contact with the human body clothing. At this time, the gas located between the inner lining 400 and the positive pressure protective suit body 101 will blow through the slots on the inner lining 400 from both ends of the pulled area into the pulled area.

[0050] At the same time, after the C-shaped chamber 601 is flipped, some of the gas inside the first connecting pipe 3031 will fill and push the water inside the C-shaped chamber 601 through the second vent pipe 605, causing it to enter the interior of the bend pipe 800. The continuous blowing of the wind causes the water inside the bend pipe 800 to re-enter the interior of the C-shaped chamber 601 after circulation, completing the effect of circulation.

[0051] As the outside temperature continues to rise, pull the pull ring 701 downwards to fasten it onto the second hook 102. At this time, the inner cavity of the first connecting tube 3031 is fully opened, and the flipping angle of the two C-shaped chambers 601 will be greatly increased, thereby pressing against the buckle tube 5023, so that its internal circular groove corresponds to the first slot 5022. At this time, the gas will also enter the interior of the circular tube 501 through the second connecting tube 5021, and blow onto the neck of the personnel through the circular tube 501, thereby greatly improving the cooling treatment of the personnel's interior after wearing the positive pressure biological protective clothing.

[0052] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0053] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A positive-pressure biological protective suit, comprising a protective suit (100), a face shield (200) mounted on the top of the protective suit (100), and an air supply system (300) connected to the middle of the protective suit (100), characterized in that: Also includes: Liner (400), the lining (400) being fixedly connected to the inner cavity of the protective suit (100); A blowpipe (500) is mounted on top of the liner (400) and its outer wall is bonded to the protective suit (100); Pull tube (600), the pull tube (600) is disposed inside the air supply system (300) and is connected to a bend (800) bonded to the liner (400). The pull tube (600) includes a C-shaped chamber (601) disposed on the upper and lower sides of the inner cavity of the gas supply system (300). A first vent pipe (602) is fixedly connected to the top of the C-shaped chamber (601). A gas storage chamber (603) fixedly connected to the gas supply system (300) is installed at the end of the first vent pipe (602) away from the C-shaped chamber (601). The end of the C-shaped chamber (601) away from the first vent pipe (602) is fixedly connected to the bend pipe (800). The air supply system (300) includes a fastener (303), which specifically includes a first connecting pipe (3031) that is snapped into the protective suit (100), an air outlet pipe (3032) fixedly connected to one end of the inner cavity of the first connecting pipe (3031) away from the movable part (700), and a movable part (700) movably connected inside the first connecting pipe (3031). The blowpipe (500) includes a connecting module (502), which specifically includes a snap tube (5023) that abuts against the C-shaped chamber (601) and a second connecting tube (5021) sleeved inside the snap tube (5023). The second connecting tube (5021) also has a first slot (5022). The gas chamber (603) is internally fixed with a second vent pipe (605) which is fixedly connected to the first connecting pipe (3031). Water sources are placed on both sides of the inner cavity of the C-type compartment (601) and are fixedly connected to the bend pipe (800); The two ends of the bend (800) that connect to the C-shaped compartment (601) are located at the top and bottom of the C-shaped compartment (601), respectively. Part of the gas inside the first connecting pipe (3031) will pass through the second vent pipe (605) to fill and push the water inside the C-shaped chamber (601), causing it to enter the interior of the bend pipe (800). The gas from the gas supply system will enter the interior of the first connecting pipe (3031) and blow on the end of the two C-shaped chambers (601) that are in contact, causing them to flip. The continuous blowing of the wind causes the water inside the bend pipe (800) to re-enter the interior of the C-shaped chamber (601) after circulation, forming a circulating flow.

2. The positive-pressure biological protective suit according to claim 1, characterized in that: The protective suit (100) includes a positive pressure protective suit body (101), and the lower end of the positive pressure protective suit body (101) near the side wall of the air supply system (300) is fixed with a hook (102) for engaging the movable part (700). The fabric of the positive pressure protective suit body (101) includes a woven base fabric with a composite polymer coating.

3. The positive pressure biological protective suit according to claim 1, characterized in that: The air supply system (300) also includes a respirator (301) fixed to the protective suit (100), and the top of the respirator (301) is fitted with a breathing tube (302) fixed to the first connecting tube (3031).

4. The positive-pressure biological protective suit according to claim 1, characterized in that: The blowpipe (500) includes a circular tube (501) that is fixed to the second connecting tube (5021) and connected to the liner (400), and the inner wall of the circular tube (501) is provided with a plurality of flow grooves.

5. The positive-pressure biological protective suit according to claim 1, characterized in that: The connecting module (502) includes a first spring (5024) that provides elastic support between the second connecting tube (5021) and the buckle tube (5023). The outer wall of the buckle tube (5023) is provided with a circular groove corresponding to the first slot (5022).

6. The positive-pressure biological protective suit according to claim 1, characterized in that: The C-type compartment (601) is fixedly connected to a pull rope (604) that is connected to the inner lining (400) at the end away from the first vent pipe (602).

7. The positive pressure biological protective suit according to claim 1, characterized in that: The liner (400) has several slots inside, and the liner (400) is bonded to the bend (800).

8. The positive-pressure biological protective suit according to claim 1, characterized in that: The movable part (700) includes a pull ring (701) that engages with the hook (102). The top of the pull ring (701) is fixedly connected to a baffle (702) that is slidably connected to the first connecting tube (3031). A spring telescopic tube (703) is elastically supported between the baffle (702) and the first connecting tube (3031).

9. The positive-pressure biological protective suit according to claim 1, characterized in that: The end of the first connecting pipe (3031) that contacts the air outlet pipe (3032) is conical.

10. The positive-pressure biological protective suit according to claim 1, characterized in that: The bend (800) has an "S" shape.

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