Respiratory protection system

Abstract

The utility model discloses a kind of respiratory protection systems, it is related to respiratory protection technical field, wherein, respiratory protection system includes clean air supply component, air supply pipe, air guide pipe and face guard.The air supply pipe includes the air supply section that is communicated with clean air supply component, and multiple air supply ports are arranged at intervals in the working space of air supply section.The air guide pipe can be telescopic, for detachably connecting air supply port and face guard, clean air supply component sends clean air into air supply pipe, and air guide pipe is used to face guard positive pressure air supply, guarantee staff to breathe clean air.When staff changes work area, staff can disconnect the connection of air guide pipe in current work area, and connect air guide pipe in next work area, staff need not to move air supply pipe, improve closed environment, under the condition that toxic and harmful substance concentration is higher, while guaranteeing staff occupational health effective protection, optimize the labor condition of staff, and have certain economy.

Description

Technical Field

[0001] This utility model relates to the field of respiratory protection technology, and in particular to a respiratory protection system. Background Technology

[0002] In contaminated site remediation activities, volatile and semi-volatile organic compounds and volatile heavy metals are usually present. In order to minimize the impact of remediation work on surrounding residents, it is necessary to enclose and excavate the contaminated site or to seal the excavated contaminated soil. This can adversely affect the health, safety and work ability of workers in temporary, enclosed environments.

[0003] If the concentration of toxic and harmful substances in an enclosed space is high, half-face masks will not provide adequate protection, and full-face masks will still offer insufficient protection. Furthermore, frequent filter replacements are necessary, and workers exposed to high temperatures in summer will feel stuffy and sweaty, making prolonged work impossible. Powered air-purifying hoods rely on the seal between the hood and the neck and shoulders for protection. Well-sealed hoods are often heavy, leading to a poor experience for workers in high summer temperatures, while more comfortable hoods offer reduced protection. They also suffer from frequent filter replacements, odor buildup over time, cumbersome maintenance, and higher prices. If multiple people share the hood, hygiene cannot be guaranteed.

[0004] When using a long-tube respirator, the worker's activities are restricted by the long tube. When the worker changes work areas, the position of the long tube often needs to be adjusted, which makes the worker's movements inconvenient. In addition, the long tube is frequently damaged and needs to be replaced in the construction environment. Utility Model Content

[0005] The main purpose of this invention is to propose a respiratory protection system that aims to improve the working conditions of workers in enclosed environments with high concentrations of toxic and harmful substances, while effectively protecting their occupational health and optimizing their working conditions, and is also economical.

[0006] To achieve the above objectives, the respiratory protection system proposed in this utility model includes: Clean air supply components; An air supply duct includes a connecting section and an air supply section. The connecting section is connected to the clean air supply assembly. The air supply section is installed in the workspace and has multiple air supply outlets spaced apart. Face mask; and, An air duct connects the air supply port and the face mask, wherein at least one of the face mask and the air supply port is detachably connected to the air duct.

[0007] In one embodiment, multiple masks and air ducts are provided in a one-to-one correspondence; or, The air ducts are provided in multiple locations, each corresponding to one of the air supply ports.

[0008] In one embodiment, the air supply outlet is provided with a first valve; and / or, The air duct is equipped with a second valve.

[0009] In one embodiment, the respiratory protection system includes a fixing ring, and multiple fixing rings are spaced apart along the extension direction of the air supply section, with the air supply section hanging inside the fixing ring.

[0010] In one embodiment, the respiratory protection system includes an installation rope, which is provided corresponding to the air supply section, and a plurality of fixed hanging rings are spaced apart on the installation rope.

[0011] In one embodiment, the air supply section includes a main air supply section and multiple sub-air supply sections. Each of the multiple sub-air supply sections is connected to the main air supply section, and the multiple sub-air supply sections are spaced apart.

[0012] In one embodiment, the air duct includes a flexible telescopic tube.

[0013] In one embodiment, the clean air supply assembly is located outside the workspace, and the clean air supply assembly includes a fan, the air outlet of which is connected to the air supply pipe.

[0014] In one embodiment, the air inlet of the fan is provided with filter cotton; and / or, The air inlet of the fan is equipped with a filter.

[0015] In one embodiment, the air inlet of the fan is provided with filter cotton and filter element, and the filter cotton and filter element are arranged sequentially along the air inlet direction of the fan.

[0016] In this invention, after the clean air supply assembly is activated, it pressurizes and delivers clean air into the air supply pipe. After connecting the air duct to the face mask, the air supply pipe delivers positive pressure air to the face mask through the air duct, ensuring that workers breathe clean air. When workers change work areas, they can disconnect the face mask from the air supply pipe in the current work area and connect it to the air supply pipe in the next work area. Workers do not need to move the air supply pipe, improving the inconvenience of worker movement. When the face mask and the air duct are detachably connected, multiple air ducts can be connected to the air supply outlets, one-to-one. When changing work areas, workers can remove the face mask from the current air duct and connect it to the air duct of the next work area to achieve the change of work area. The air duct and the air supply duct are detachably connected. When workers change work areas, they can remove the air duct from the current air supply port and connect it to the air supply port in the next work area, thus changing work areas. This improves working conditions in enclosed environments, effectively protecting workers' occupational health even under conditions of high concentrations of toxic and harmful substances, optimizing their working conditions, and also possessing certain economic advantages. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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 the structures shown in these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the structure of an embodiment of the respiratory protection system provided by this utility model; Figure 2 for Figure 1 A schematic diagram of the air supply duct distribution in a respiratory protection system; Figure 3 for Figure 1 Another schematic diagram showing the distribution of air supply ducts in a respiratory protection system; Figure 4 for Figure 1 A schematic diagram of the installation structure of the air supply section in the middle; Figure 5 for Figure 4 A schematic diagram of the cross-sectional structure of the air supply section; Figure 6 A schematic diagram of another embodiment of the respiratory protection system provided by this utility model.

[0019] Explanation of icon numbers: 1. Clean air supply assembly; 2. Air supply duct; 21. Connecting section; 22. Air supply section; 221. Air supply outlet; 222. Main air supply section; 223. Sub-section of air supply; 3. Face mask; 4. Air duct; 5. Fixing ring; 6. Installation rope; 7. Filter cotton; 8. Filter element; 9. Working space.

[0020] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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 scope of protection of the present utility model.

[0022] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0023] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0024] In contaminated site remediation activities, volatile and semi-volatile organic compounds and volatile heavy metals are usually present. In order to minimize the impact of remediation work on surrounding residents, it is necessary to enclose and excavate the contaminated site or to seal the excavated contaminated soil. This can adversely affect the health, safety and work ability of workers in temporary, enclosed environments.

[0025] If the concentration of toxic and harmful substances in an enclosed space is high, half-face masks will not provide adequate protection, and full-face masks will still offer insufficient protection. Furthermore, frequent filter replacements are necessary, and workers exposed to high temperatures in summer will feel stuffy and sweaty, making prolonged work impossible. Powered air-purifying hoods rely on the seal between the hood and the neck and shoulders for protection. Well-sealed hoods are often heavy, leading to a poor experience for workers in high summer temperatures, while more comfortable hoods offer reduced protection. They also suffer from frequent filter replacements, odor buildup over time, cumbersome maintenance, and higher prices. If multiple people share the hood, hygiene cannot be guaranteed.

[0026] When using a long-tube respirator, the worker's activities are restricted by the long tube. When the worker changes work areas, the position of the long tube often needs to be adjusted, which makes the worker's movements inconvenient. In addition, the long tube is frequently damaged and needs to be replaced in the construction environment.

[0027] This utility model proposes a respiratory protection system.

[0028] Please see Figure 1 , Figure 2 and Figure 3 In one embodiment of this utility model, the respiratory protection system includes a clean air supply assembly 1, an air supply pipe 2, a face mask 3, and an air duct 4. The air supply pipe 2 includes a connecting section 21 and an air supply section 22. The connecting section 21 is connected to the clean air supply assembly 1, and the air supply section 22 is disposed within a workspace 9, with multiple air supply ports 221 spaced apart. The air duct 4 connects the air supply ports 221 and the face mask 3, and at least one of the face mask 3 and the air supply ports 221 is detachably connected to the air duct 4.

[0029] In the technical solution of this utility model, after the clean air supply component 1 is activated, it can pressurize and deliver clean air into the air supply pipe 2. After connecting the air guide pipe 4 to the face mask 3, the air supply pipe 2 can deliver positive pressure air to the face mask 3 through the air guide pipe 4, ensuring that the staff breathes clean air. When the staff changes work areas, they can disconnect the face mask 3 from the air supply pipe 2 in the current work area and connect it to the air supply pipe 2 in the next work area. The staff does not need to move the air supply pipe 2, which improves the problem of the staff's inconvenience. When the face mask 3 and the air guide pipe 4 are detachably connected, the air guide pipe 4 can be connected to the air supply port 221 and multiple correspondingly set. When the staff changes work areas, they can remove the face mask 3 from the current air guide pipe 4 and then connect the face mask 3 to the air guide pipe 4 of the next work area to realize the change of work area. The air duct 4 and the air supply duct 2 are detachably connected. When workers change work areas, they can remove the air duct 4 from the current air supply port 221 and connect it to the air supply port 221 in the next work area to achieve the change of work area. This improves the working conditions in enclosed environments. Under conditions of high concentrations of toxic and harmful substances, it effectively protects the occupational health of workers while optimizing their working conditions and also has a certain degree of economic efficiency.

[0030] The workspace 9 is a closed space built or constructed in the area to be constructed or a designated area. The workspace 9 is relatively separated from the external environment in order to reduce the amount of toxic gases entering the external environment from the workspace 9 during construction. Specifically, the workspace 9 can be any existing building used to construct a closed space, such as a steel structure shed, an aluminum alloy shed, or an inflatable shed, and is not limited here.

[0031] The clean air supply assembly 1 can be a compressed air tank or a fan, which is not limited here; it is only necessary to ensure that the clean air supply assembly 1 supplies air to the air supply pipe 2. By setting the clean air supply assembly 1 as a compressed air tank, it is possible to supply air to the air supply pipe 2 for a short period of time when power supply is difficult to guarantee. The air supply pipe 2 can be a metal pipe or a non-metal pipe, whichever is more specific. The mask 3 can be a full mask 3 or a half mask 3, which is not limited here. The air guide pipe 4 is a flexible pipe, so that it can bend and deform with the worker when working, thereby reducing obstruction to the worker's work.

[0032] To ensure a continuous air supply to the air supply pipe 2 over a long period, the clean air supply assembly 1 is located outside the working space 9. The clean air supply assembly 1 includes a fan, and the fan's outlet is connected to the air supply pipe 2. By configuring the clean air supply assembly 1 as a fan, the fan can continuously supply air to the air supply pipe 2, provided that power supply to the fan is available. By placing the clean air supply assembly 1 outside the working space 9, the clean air supply assembly 1's surrounding air cleanliness is ensured, reducing the amount of toxic gases introduced into the air supply pipe 2. A connecting section 21 passing through the side wall of the working space 9 connects the clean air supply assembly 1 and the air supply section 22.

[0033] Please see Figure 1 The air inlet of the fan is equipped with a filter cotton 7. By installing the filter cotton 7 at the air inlet of the fan, the incoming air of the fan can be filtered to remove some dust particles, thereby reducing the amount of dust particles entering the air supply pipe 2 and reducing the amount of dust particles deposited in the air supply pipe 2 during long-distance air transmission.

[0034] The air inlet of the fan is equipped with a filter element 8. By setting up a filter canister, the air entering the fan can be disinfected and filtered to reduce the amount of toxic gas entering the fan, thereby preventing toxic gas from being sent into the air supply pipe 2 and improving the safety of the air supply to the face shield 3.

[0035] The filter element 8 can be a filter canister, which is detachably connected to the fan. After the filter element 8 has reached its set service life, it can be replaced to ensure continuous filtration of the air entering the fan. Considering that the working space 9 is difficult to completely seal, and toxic gases can easily enter the surrounding environment, the filter material inside the filter element 8 can be selected according to the type of toxic gas in the working space 9. By placing the clean air supply assembly 1 outside the working space 9, the amount of toxic gas passing through the filter element 8 can be reduced, thus reducing the consumption rate of the filter element 8, extending its service life, and decreasing the frequency of replacement.

[0036] The air inlet of the fan is equipped with a filter cotton 7 and a filter element 8, which are arranged sequentially along the air intake direction of the fan. By setting up the filter and the filter element 8, the air can be dusted first, then disinfected, and finally the dust-removed and disinfected air can be sent into the air supply duct 2 through the fan.

[0037] Please see Figure 1 , Figure 4 and Figure 5To ensure the normal operation of multiple workers, the air duct 4 is detachably connected to the air supply port 221, and multiple masks 3 and air ducts 4 are provided in a one-to-one correspondence. When a worker moves to a corresponding work location, the worker can remove the air duct 4 from the current air supply port 221 and install it on the air supply port 221 of the next area. The number of masks 3 and air ducts 4 can be set according to the number of workers and the work area. Specifically, the number of masks 3 and air ducts 4 should not be less than the number of workers and not less than the work area of ​​the workers, so that workers can select masks 3 and air ducts 4 as needed.

[0038] To ensure pressure in the air supply pipe 2, reduce ineffective air supply at the air supply port 221, and guarantee air supply to the air guide pipe 4, a first valve is provided on the air supply port 221. After connecting the air guide pipe 4 to the corresponding air supply pipe 2, the first valve on the corresponding air supply port 221 can be opened to ensure air supply from the air supply port 221 to the air guide pipe 4. When the mask is not connected to the air guide pipe 4, the first valve can be used to close the air guide pipe port 4. Specifically, when the air guide pipe 4 is connected to the mask 3, the corresponding first valve can be opened automatically or manually, and when the mask 3 is removed from the air guide pipe port 4, the corresponding first valve can be closed automatically or manually to facilitate the installation and removal of the air guide pipe 4 and the air supply pipe 2.

[0039] Reference Figure 6 The face mask 3 is detachably connected to the air duct 4, and multiple air ducts 4 are provided corresponding to the air supply ports 221. When changing work areas, workers can remove the face mask 3 from the air duct 4 and install it onto the air duct 4 of the next work area. One end of the air duct 4 hangs down and is lower than the air supply pipe, which facilitates the installation and removal of the face mask 3 by workers.

[0040] The air duct 4 is equipped with a second valve. When the air duct 4 is not connected to the mask 3, the second valve can be used to close the air duct 4 to reduce air leakage.

[0041] During operations, staff typically work within a relatively fixed area. As staff move, it becomes difficult to maintain the air duct 4, and the flexible air duct 4 is prone to tangling. To reduce tangling, the air duct 4 includes an elastic telescopic tube. As staff move, the air duct 4 can elastically extend or retract according to the change in distance between the staff and the corresponding air supply port 221, keeping the air duct 4 straight and reducing tangling. The elastic telescopic tube can be a rubber tube or a corrugated pipe, and is not limited thereto.

[0042] Please see Figure 4 and Figure 5 To minimize interference with staff activities caused by the air supply section 22, the respiratory protection system includes multiple fixing rings 5. These fixing rings 5 ​​are spaced apart along the extension direction of the air supply section 22, and the air supply section 22 is suspended within each fixing ring 5. Through the cooperation of multiple fixing rings 5, the air supply pipe 2 can be suspended at a higher position, reducing contact and interference between staff and the air supply pipe 2 during staff movement. The multiple fixing rings 5 ​​can be evenly spaced, and their shape and size can be selected as needed. To ensure the strength of the fixing rings 5, they can be metal rings. The air supply section 22 passes through the fixing rings 5, ensuring the fixing rings 5 ​​securely hold the air supply section 22 in place.

[0043] To secure the fixing rings 5, the respiratory protection system includes an installation rope 6, which is positioned corresponding to the air supply section 22. Multiple fixing rings 5 ​​are spaced apart on the installation rope 6. The installation rope 6 can be pulled within the working area to provide an installation base for the fixing rings 5. The fixing rings 5 ​​can be fixed to the installation rope 6 by binding or by sleeve installation; this is not limited to either method. The installation rope 6 can be a steel wire rope, possessing high strength to ensure the secure installation of the fixing rings 5. The installation rope 6 can be fixed to the canopy in the working area using any existing method, such as binding.

[0044] The air supply section 22 includes a main air supply section 222 and multiple sub-sections 223. Each sub-section 223 is connected to the main air supply section 222 and is spaced apart. The multiple sub-sections 223 work together to increase the coverage area of ​​the air duct, thereby increasing the mobility of the worker's work area. Each sub-section 223 extends along the length of the workspace 9 and is spaced apart along the width of the workspace 9.

[0045] The main air supply section 222 and the sub-section 223 can be connected by a two-way bend, a three-way pipe, or a four-way pipe, depending on the location and number of connections between them. Both the main air supply section 222 and the sub-section 223 can be formed by a single long pipe or by splicing multiple long pipes end to end; no limitation is made here.

[0046] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A respiratory protection system, characterized in that, include: Clean air supply components; An air supply duct includes a connecting section and an air supply section. The connecting section is connected to the clean air supply assembly. The air supply section is installed in the workspace and has multiple air supply outlets spaced apart. Face mask; and, An air duct connects the air supply port and the face mask, wherein at least one of the face mask and the air supply port is detachably connected to the air duct.

2. The respiratory protection system as described in claim 1, characterized in that, The air duct is detachably connected to the air supply port, and multiple air ducts are provided in a one-to-one correspondence between the face mask and the air duct; or... The mask is detachably connected to the air duct, and multiple air ducts are provided corresponding to the air supply ports.

3. The respiratory protection system as described in claim 1, characterized in that, The air supply outlet is equipped with a first valve; and / or, The air duct is equipped with a second valve.

4. The respiratory protection system as described in claim 1, characterized in that, The respiratory protection system includes fixed hanging rings, and multiple fixed hanging rings are arranged at intervals along the extension direction of the air supply section, with the air supply section hanging inside the fixed hanging rings.

5. The respiratory protection system as described in claim 4, characterized in that, The respiratory protection system includes an installation rope, which is set corresponding to the air supply section, and a plurality of fixed hanging rings are spaced apart on the installation rope.

6. The respiratory protection system as described in claim 1, characterized in that, The air supply section includes a main air supply section and multiple sub-air supply sections, all of which are connected to the main air supply section and are spaced apart.

7. The respiratory protection system as described in claim 1, characterized in that, The air duct includes an elastic telescopic tube.

8. The respiratory protection system as described in claim 1, characterized in that, The clean air supply assembly is located outside the work space. The clean air supply assembly includes a fan, and the air outlet of the fan is connected to the air supply pipe.

9. The respiratory protection system as described in claim 8, characterized in that, The air inlet of the fan is equipped with filter cotton; and / or, The air inlet of the fan is equipped with a filter.

10. The respiratory protection system as claimed in claim 8, characterized in that, The air inlet of the fan is equipped with filter cotton and filter element, which are arranged sequentially along the air inlet direction of the fan.

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