Protective clothing of a multilayer composite wear-resistant structure

Abstract

The utility model relates to the technical field of protective clothing, and disclose a kind of protective clothing of multilayer composite wear-resistant structure, including protective clothing body, the waist of protective clothing body is equipped with three-way pipe body, three-way pipe body three end portions are integrally or fixedly equipped with threaded pipe orifice, threaded pipe orifice passes through the through-hole being equipped in the waist of protective clothing body and extends its outside, threaded pipe orifice is threadedly connected with compression ring, the through-hole edge of the waist of protective clothing body is compressed between compression ring and threaded pipe orifice bottom step surface, groove is opened in the pipe wall of three-way pipe body, and grid plate is embedded in groove.The utility model connects external clean air source through threaded interface, can form and maintain stable positive pressure in protective clothing inside.Even if clothing appears tiny breakage due to scratch, internal clean air will also overflow outward, effectively prevent external radioactive aerosol, toxic particulate matter or chemical contaminant from infiltrating inside, solve the major safety hazard that traditional protective clothing is invalid once broken.

Description

Technical Field

[0001] This utility model relates to the field of protective clothing technology, specifically a protective clothing with a multi-layer composite wear-resistant structure. Background Technology

[0002] In high-risk work areas such as nuclear power plants, chemical plants, and emergency response, personal safety is paramount. Workers must wear protective clothing to shield themselves from hazardous substances such as radioactive aerosols, toxic particles, and chemical contaminants. Currently, most widely used protective clothing is a fully enclosed structure, its protective principle primarily relying on the insulating properties of the fabric itself and the overall airtightness.

[0003] However, these traditional protective suits have a significant technical flaw and safety hazard: their interior is either at normal or negative pressure. When workers breathe, a slight negative pressure is easily created inside the suit. If the protective suit suffers any minor damage due to scratches, abrasions, or snagging, contaminated air from outside will be drawn into the suit through the tear, exposing the wearer directly to a dangerous environment and instantly rendering the protective function ineffective. This "instant failure upon damage" characteristic poses a continuous threat to the lives of workers.

[0004] To address these issues, attempts have been made to enhance the physical strength of protective clothing by improving the abrasion resistance of the fabric. However, this only reduces, but cannot fundamentally eliminate, the risk of damage. Some solutions have proposed ventilation into the clothing, but these often suffer from unreliable seam connections, easy detachment, and poor sealing, failing to effectively establish and maintain a stable positive pressure environment inside. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to a multi-layer composite wear-resistant protective suit, comprising a protective suit body, a three-way tube installed at the waist of the protective suit body, and threaded openings integrally or fixedly provided at the three ends of the three-way tube. The threaded openings pass through a through hole in the waist of the protective suit body and extend outwards. A pressure ring is threadedly connected to the threaded opening. The edge of the through hole in the waist of the protective suit body is pressed between the pressure ring and the bottom stepped surface of the threaded opening. A groove is opened on the tube wall of the three-way tube, and a grid plate is embedded in the groove.

[0006] Furthermore, a screw hole is provided on the stepped surface at the bottom of the threaded tube opening, and the pressure ring is fixed by a screw connected to the screw hole to enhance the clamping force on the protective clothing body fabric.

[0007] Furthermore, the grid plate is provided with three through slots, the positions of the three through slots correspond one-to-one with the positions of the three threaded pipe openings and are interconnected.

[0008] Furthermore, the grid plate is provided with two partitions, which are located between the three sets of through slots, separating the three sets of through slots and their corresponding airflow channels from each other.

[0009] Furthermore, the threaded port not connected to a venting line is sealed by a removable cap.

[0010] Furthermore, the pressure ring has a through hole for the screw to pass through.

[0011] Furthermore, the three-way tube is fixedly disposed between the inner lining layer and the outer abrasion-resistant layer of the protective suit body.

[0012] This utility model has the following beneficial effects: This invention connects to an external clean air source via a threaded interface, enabling the formation and maintenance of a stable positive pressure inside the protective suit. Even if the garment suffers minor damage due to scratches, the clean air inside will still escape, effectively preventing external radioactive aerosols, toxic particles, or chemical pollutants from penetrating inward. This solves the major safety hazard of traditional protective suits becoming ineffective once damaged.

[0013] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the T-junction pipe structure; Figure 2 This is a schematic diagram of the side structure of a tee pipe. Figure 3 for Figure 2 Schematic diagram of the AA cross-section structure; Figure 4 This is a schematic diagram of the back structure of the tee pipe; Figure 5 This is a schematic diagram of the exploded structure of a tee pipe. Figure 6 This is a schematic diagram of the structure of this utility model; The attached diagram lists the components represented by each number as follows: In the diagram: 1. Tee body; 101. Threaded pipe opening; 102. Groove opening; 103. Threaded hole; 2. Pressure ring; 3. Cover body; 4. Grid plate; 401. Through groove; 402. Partition plate; 5. Protective clothing body; 501. Zipper. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figures 1-6 As shown, this utility model is a protective suit with a multi-layer composite wear-resistant structure, including a protective suit body 5. A three-way tube 1 is installed at the waist of the protective suit body 5. Each of the three ends of the three-way tube 1 is integrally or fixedly provided with a threaded tube port 101. The threaded tube port 101 passes through the through hole provided at the waist of the protective suit body 5 and extends outward. A pressure ring 2 is threadedly connected to the threaded tube port 101. The edge of the through hole at the waist of the protective suit body 5 is pressed between the pressure ring 2 and the bottom stepped surface of the threaded tube port 101. A groove 102 is opened on the tube wall of the three-way tube 1, and a grid plate 4 is embedded in the groove 102.

[0018] A screw hole 103 is provided on the stepped surface at the bottom of the threaded pipe 101. The pressure ring 2 is fixed by a screw connected to the screw hole 103 to enhance the pressing force on the fabric of the protective clothing body 5. A zipper 501 is provided on the protective clothing body 5 for easy putting on and taking off.

[0019] The tee body 1 is a T-shaped hollow pipe fitting, preferably integrally molded from high-performance PLA composite material. Its key feature is that external threads are machined on the exterior of all three ends, forming threaded pipe openings 101. At the root of each threaded pipe opening 101, a radially outwardly extending annular stepped surface is provided. At least two, preferably three, circumferentially evenly distributed threaded holes 103 are machined on this stepped surface.

[0020] The grid plate 4 is provided with three through slots 401. The positions of the three through slots 401 correspond one-to-one with the positions of the three threaded pipe openings 101 and are interconnected. The grid plate 4 is provided with two partitions 402. The two partitions 402 are located between the three sets of through slots 401, separating the three sets of through slots 401 and their corresponding airflow channels from each other.

[0021] The threaded port 101, which is not connected to a vent pipe, is closed by a removable cover 3, and the pressure ring 2 has a through hole for screws to pass through.

[0022] The three-way tube 1 is fixedly installed between the inner lining and the outer abrasion-resistant layer of the protective suit body 5. The outer abrasion-resistant layer and the inner lining work together to clamp and seal, making the connection of the entire interface more secure and able to withstand greater tensile force. It effectively prevents contaminants from entering through the fabric gaps around the interface, and the soft inner lining separates the hard tube from the skin, providing a comfortable cushioning layer.

[0023] The inner lining layer is made of organic cotton / flame-retardant adhesive, and the outer abrasion-resistant layer is composed of a bio-based TPU film and a bio-based nylon layer. The bio-based TPU film is tightly bonded between the high-strength outer abrasion-resistant fabric bio-based nylon and the inner comfort fabric through a lamination process, thereby improving the abrasion resistance of the protective clothing body 5 surface.

[0024] First, insert the grid plate 4 into the slot 102 inside the three-way pipe body 1 to ensure that the partition plate 402 is installed in place so that the three channels are independent of each other.

[0025] Then, the three threaded ports 101 of the three-way tube 1 are passed through the three pre-set through holes in the waist area from the inside of the protective suit body 5, so that the threaded ports 101 protrude from the outside of the protective suit, while the main body of the three-way tube 1 remains inside the protective suit. At this time, the edge of the through hole in the waist fabric of the protective suit body 5 is naturally sandwiched between the stepped surface at the root of the threaded port 101 and the outer layer of the protective suit. In addition, the outer layer of the protective suit is sealed with sealant to improve the sealing effect between the stepped surface at the root of the threaded port 101 and the outer layer of the protective suit.

[0026] Next, the pressure ring 2 is fitted onto the threaded pipe opening 101. Using a screwdriver or similar tool, screws are passed through the through holes on the pressure ring 2 and screwed into the screw holes 103 on the stepped surface. As the screws are tightened, the pressure ring 2 moves downward toward the protective clothing fabric, working in conjunction with the stepped surface to firmly press and clamp the fabric of the protective clothing body in the middle, thereby achieving a reliable and sealed connection between the three-way pipe 1 and the protective clothing body 5, effectively preventing the three-way pipe from being pulled off when the ventilation pipe is pulled.

[0027] The pressing surface of the pressure ring 2 is provided with a convex ring to improve the pressing effect.

[0028] Finally, connect the vent pipe connector to the required threaded port 101 as needed and tighten it. For unused threaded ports 101, screw on the cap 3 to seal them and prevent foreign objects from entering or gas from leaking.

[0029] The protective suit is connected to a ventilation tube via a threaded interface, allowing clean, compressed air from an external source (such as a portable air compressor or a combination gas cylinder assembly) to be introduced into the suit. The compressed air source can be carried on the user's back.

[0030] Air is continuously supplied into the suit, making the internal air pressure slightly higher than the external ambient air pressure. This means that even if the protective suit is slightly damaged, only clean air inside will leak out, while polluted air, aerosols, radioactive dust, etc. from the outside cannot be inhaled, providing the user with the highest level of respiratory protection; The incoming airflow not only forms a breathing zone in the head but also flows within the clothing, carrying away a large amount of heat and sweat generated by the body, effectively preventing heat stress (heatstroke). This is crucial for nuclear power plant workers operating in high-temperature, high-intensity environments, significantly extending their effective working time.

[0031] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A protective suit with a multi-layer composite abrasion-resistant structure, comprising a protective suit body (5), characterized in that: The waist of the protective suit body (5) is equipped with a three-way tube (1), and the three ends of the three-way tube (1) are integrally or fixedly provided with threaded tube openings (101). The threaded tube openings (101) pass through the through hole provided in the waist of the protective suit body (5) and extend out to the outside. A pressure ring (2) is threaded onto the threaded pipe opening (101), and the edge of the through hole at the waist of the protective suit body (5) is pressed between the pressure ring (2) and the bottom stepped surface of the threaded pipe opening (101); The wall of the three-way pipe (1) is provided with a groove (102), and a grid plate (4) is embedded in the groove (102).

2. The protective suit with a multi-layer composite wear-resistant structure according to claim 1, characterized in that: The threaded tube opening (101) has a threaded hole (103) on the stepped surface at the bottom. The pressure ring (2) is fixed by a screw connected to the threaded hole (103) to enhance the pressure on the fabric of the protective clothing body (5).

3. The protective suit with a multi-layer composite wear-resistant structure according to claim 1, characterized in that: The grid plate (4) is provided with three through slots (401), and the positions of the three through slots (401) correspond one-to-one with the positions of the three threaded pipe openings (101) and are interconnected.

4. The protective suit with a multi-layer composite wear-resistant structure according to claim 3, characterized in that: The grid plate (4) is provided with two partitions (402), which are located between the three sets of through slots (401) to separate the three sets of through slots (401) and their corresponding airflow channels.

5. The protective suit with a multi-layer composite wear-resistant structure according to claim 1, characterized in that: The threaded port (101) not connected to a venting line is closed by a removable cover (3).

6. The protective suit with a multi-layer composite wear-resistant structure according to claim 1, characterized in that: The pressure ring (2) has a through hole for the screw to pass through.

7. The protective suit with a multi-layer composite wear-resistant structure according to claim 1, characterized in that: The three-way tube (1) is fixedly installed between the inner lining and the outer wear-resistant layer of the protective clothing body (5).

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