A protective air respirator

Abstract

The utility model discloses a protective air respirator relates to air respirator field, including backplate, both sides of backplate all rotate and install connecting seat, external component, external component sets up one side at backplate, wherein, external component includes installation site, cylinder part, installation site, cylinder part all set up one side at backplate, protection component, protection component sets up at the top of connecting seat, wherein, protection component includes face guard part, warning part, face guard part, warning part all set up at the top of connecting seat, the utility model discloses through setting installation site, will cylinder activity installation in the inside of inner shell, will screw cap place in inner shell top and rotate and tighten, and the screw cap is limited to cylinder, and cylinder completes installation, and the top of notch and cylinder is compatible, and the screw cap is convenient for with cylinder top end and is set up, and loosens screw cap, can to cylinder quick disassembly replacement, convenient operation.

Description

Technical Field

[0001] This utility model relates to the field of air respirator technology, specifically to a protective air respirator. Background Technology

[0002] As core protective equipment in high-risk scenarios such as chemical leaks, fire rescues, and underground confined spaces, the stability of the cylinder installation and the efficiency of disassembly directly affect the safety of workers and the continuity of tasks. Traditional protective air respirators generally suffer from design flaws such as "cumbersome installation, time-consuming disassembly, and poor adaptability." Especially in emergency rescue and long-term operation scenarios, this not only increases the operational burden but may also delay rescue opportunities due to untimely cylinder replacement, and even threaten the lives of workers.

[0003] When installing a traditional self-contained breathing apparatus (SCBA), the cylinder must first be placed in the back frame, then the length of the straps must be manually adjusted, the cylinder wrapped around it, and the buckles or Velcro fasteners must be fastened. On average, it takes 3-5 minutes for a single person to complete the installation. When disassembling, the buckles must be unfastened one by one and the Velcro fasteners must be peeled off. In emergency situations (such as when the cylinder is depleted and needs to be replaced quickly), the excessive operation time may lead to an interruption of the air supply, which may threaten life safety. Utility Model Content

[0004] The purpose of this invention is to provide a protective air respirator to solve the problem that the installation process of traditional protective air respirators requires manual adjustment of the strap length, wrapping around the air cylinder, and then fastening the buckle or attaching Velcro, which is complicated and time-consuming.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a protective air respirator, including a back plate, on both sides of which a connecting seat is rotatably mounted;

[0006] External components, which are disposed on one side of the back panel;

[0007] The external components include a mounting part and a gas cylinder part, both of which are located on one side of the back panel.

[0008] A protective component is disposed on top of the connector;

[0009] The protective component includes a face shield and a warning section, both of which are located on the top of the connector.

[0010] The mounting portion includes an outer shell, an inner shell inside the outer shell, reinforcing ribs fixedly installed at equal intervals on the outer circumference of the inner shell, a screw cap fixedly installed on the top of the inner shell by threads, a notch being opened inside the screw cap, the outer shell being fixedly installed on one side of the back plate, and the inner wall of the outer shell being fixedly connected to the reinforcing ribs.

[0011] Furthermore, the gas cylinder section includes a gas cylinder, a pressure sensor is fixedly installed on the top of the gas cylinder, a valve is provided on the top of the pressure sensor, a power block is provided on one side of the back plate, and a charging port is provided at the bottom of the power block.

[0012] Furthermore, the gas cylinder is movably installed inside the inner shell, with the top of the gas cylinder passing through the inner shell and the screw cap in sequence, and the top of the gas cylinder extending to the top of the screw cap, and the bottom of the screw cap abutting against the gas cylinder.

[0013] Furthermore, the mask portion includes an outer tube, an air supply pipe is fixedly installed inside the outer tube, a mask is fixedly installed at one end of the air supply pipe, a sealing ring is fixedly installed on one side of the mask, a strap is fixedly installed in the middle of the mask, the outer tube is located on the top of the connector, and the other end of the air supply pipe is fixedly installed to the top of the gas cylinder.

[0014] Furthermore, the warning area includes a display screen, a speaker is fixedly mounted on one side of the display screen, shoulder straps are provided on both sides of the back panel, and the display screen is fixedly mounted on one side of the outer casing.

[0015] Furthermore, the speaker is electrically connected to the pressure sensor, the display screen is electrically connected to the pressure sensor, the two ends of the shoulder strap are fixedly connected to the top and bottom of the connector respectively, and the display screen is electrically connected to the power supply block.

[0016] Compared with existing technologies, the protective air respirator provided by this utility model has the following beneficial effects:

[0017] (1) By setting an installation part, the gas cylinder is movably installed inside the inner shell. Then, the screw cap is placed on the top of the inner shell and rotated and tightened. The screw cap limits the gas cylinder and the gas cylinder is installed. The notch matches the top of the gas cylinder, which makes it easy for the screw cap to fit with the top of the gas cylinder. Loosening the screw cap allows the gas cylinder to be quickly disassembled and replaced, which is convenient to operate.

[0018] (2) This utility model sets up a gas cylinder, an inner shell, etc. The outer surface of the gas cylinder is covered with a high-temperature resistant ceramic coating to prevent the gas cylinder from exploding due to high temperature at the fire scene. The inner shell and the outer shell are fixedly connected by reinforcing ribs. When the gas cylinder part is hit by an external impact, the outer shell is subjected to part of the impact force, and the remaining force is dispersed to the surface of the inner shell through the reinforcing ribs to further offset the impact force, ensuring the safety of the gas cylinder installed inside the inner shell. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0020] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;

[0021] Figure 2 This is the right view of the present invention;

[0022] Figure 3 This is the left view of the present invention;

[0023] Figure 4 This is a top view of the present invention.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Backplate; 2. Connector; 3. External components; 31. Mounting area; 311. Outer shell; 312. Inner shell; 313. Reinforcing rib; 314. Screw cap; 315. Notch; 32. Gas cylinder area; 321. Gas cylinder; 322. Pressure sensor; 323. Valve; 324. Power supply block; 325. Charging port; 4. Protective components; 41. Face mask area; 411. Outer tube; 412. Gas delivery tube; 413. Face mask; 414. Sealing ring; 415. Straps; 42. Warning area; 421. Display screen; 422. Speaker; 423. Shoulder straps. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0027] As attached Figure 1 To be continued Figure 4 As shown:

[0028] Example 1:

[0029] This utility model provides a protective air respirator, including a back plate 1, with connecting seats 2 rotatably installed on both sides of the back plate 1;

[0030] External component 3 is disposed on one side of the back panel 1;

[0031] The external component 3 includes a mounting part 31 and a gas cylinder part 32, both of which are located on one side of the back plate 1.

[0032] The mounting part 31 includes an outer shell 311, an inner shell 312 is provided inside the outer shell 311, reinforcing ribs 313 are fixedly installed at equal intervals on the outer circumference of the inner shell 312, a screw cap 314 is fixedly installed on the top of the inner shell 312 by threads, a notch 315 is opened inside the screw cap 314, the outer shell 311 is fixedly installed on one side of the back plate 1, and the inner wall of the outer shell 311 is fixedly connected to the reinforcing ribs 313.

[0033] The gas cylinder section 32 includes a gas cylinder 321. A pressure sensor 322 is fixedly installed on the top of the gas cylinder 321. A valve 323 is provided on the top of the pressure sensor 322. A power block 324 is provided on one side of the back plate 1. A charging port 325 is provided at the bottom of the power block 324. The gas cylinder 321 is movably installed inside the inner shell 312. The top of the gas cylinder 321 passes through the inner shell 312 and the screw cap 314 in sequence, and the top of the gas cylinder 321 extends to the top of the screw cap 314. The bottom of the screw cap 314 abuts against the gas cylinder 321.

[0034] Working principle: Gas cylinder 321 adopts a carbon fiber fully wound gas cylinder with a working pressure of 30MPa. It is 40% lighter than traditional steel cylinders. The outer surface of gas cylinder 321 is coated with a high-temperature resistant ceramic coating to prevent the gas cylinder 321 from exploding due to high temperatures at the fire scene. The cylinder mouth adopts a brass nickel-plated interface, which is corrosion resistant and has excellent sealing performance.

[0035] Rotate the cap 314 to remove it from the top of the inner shell 312. Then, movably install the gas cylinder 321 inside the inner shell 312. Place the cap 314 back on the top of the inner shell 312 and rotate it to tighten. The cap 314 limits the position of the gas cylinder 321, and the gas cylinder 321 is installed. The notch 315 matches the top of the gas cylinder 321, making it easy for the cap 314 to fit onto the top of the gas cylinder 321. Loosening the cap 314 allows for quick disassembly and replacement of the gas cylinder 321, making the operation convenient.

[0036] When the gas cylinder part 32 is subjected to an external impact, the impact force will first act on the outer shell 311: the outer shell 311 directly bears part of the impact force with its own structural rigidity, initially weakening the impact energy and reducing the direct impact of the external force on the internal structure. The remaining impact force that is not completely offset by the outer shell will be evenly distributed to the surface of the inner shell 312 through the reinforcing ribs 313. Since the reinforcing ribs are distributed, the impact force will be decomposed into multiple small-force dispersed forces, rather than being concentrated on a certain point on the inner shell 312, so that the inner shell 312 can more stably bear and further offset this part of the energy.

[0037] Through the initial buffering of the outer shell 311, the dispersion and transmission of the reinforcing ribs 313, and the secondary offsetting of the inner shell 312, the impact of the impact on the interior of the outer shell 311 is minimized, ensuring that the gas cylinder 321 installed inside the inner shell 312 is always in a safe state, and avoiding damage or leakage of the gas cylinder 321 due to the impact.

[0038] Example 2:

[0039] Based on Embodiment 1, a protective component 4 is provided on the top of the connector 2;

[0040] The protective component 4 includes a face shield part 41 and a warning part 42, both of which are located on the top of the connecting base 2.

[0041] The mask part 41 includes an outer tube 411, an air supply pipe 412 is fixedly installed inside the outer tube 411, a mask 413 is fixedly installed at one end of the air supply pipe 412, a sealing ring 414 is fixedly installed on one side of the mask 413, a strap 415 is fixedly installed in the middle of the mask 413, the outer tube 411 is located on the top of the connecting seat 2, and the other end of the air supply pipe 412 is fixedly installed to the top of the gas cylinder 321.

[0042] The warning part 42 includes a display screen 421, a speaker 422 is fixedly installed on one side of the display screen 421, and shoulder straps 423 are provided on both sides of the back panel 1. The display screen 421 is fixedly installed on one side of the housing 311. The speaker 422 is electrically connected to the pressure sensor 322. The display screen 421 is electrically connected to the pressure sensor 322. The two ends of the shoulder straps 423 are fixedly connected to the top and bottom of the connecting base 2, respectively. The display screen 421 is electrically connected to the power block 324.

[0043] Working principle: The gas supply pipe 412 is an oil- and acid- and alkali-resistant PU pipe, and the outer pipe 411 is a stainless steel corrugated pipe that can prevent mechanical impact and melting. The mask 413 can be fixed to the head by the strap 415. The mask 413 is made of silicone material (medical grade, no risk of allergies). The face contact area is equipped with a sealing ring 414, which improves the sealing performance of the mask 413. Even if the operator sweats, it can still maintain a seal. After the mask 413 is put on, the valve 323 is opened, and the user can breathe the oxygen stored in the gas cylinder 321.

[0044] The power supply block 324 provides power to the entire respirator. The power supply block 324 can be charged through the charging port 325. The pressure sensor 322 is located at the mouth of the gas cylinder 321 to collect the pressure of the gas cylinder 321 in real time. The data is transmitted to the display screen 421, which simultaneously displays the remaining gas volume and the estimated available time (calculated based on a gas consumption of 50L / min). When the gas cylinder pressure is lower than 5MPa or the remaining gas volume is about 10%, the display screen 421 turns red and the speaker 422 sounds an alarm to remind the operator to evacuate.

[0045] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A protective air respirator, comprising a backplate (1), characterized in that, Connecting seats (2) are rotatably mounted on both sides of the back plate (1); An external component (3) is disposed on one side of the back panel (1); The external component (3) includes a mounting part (31) and a gas cylinder part (32), both of which are located on one side of the back plate (1). A protective component (4) is disposed on top of the connector (2); The protective component (4) includes a face mask part (41) and a warning part (42), both of which are located on the top of the connecting seat (2). The mounting part (31) includes an outer shell (311), an inner shell (312) is provided inside the outer shell (311), reinforcing ribs (313) are fixedly installed at equal intervals on the outer circumference of the inner shell (312), a screw cap (314) is fixedly installed on the top of the inner shell (312) by threads, and a notch (315) is opened inside the screw cap (314). The outer shell (311) is fixedly installed on one side of the back plate (1), and the inner wall of the outer shell (311) is fixedly connected to the reinforcing ribs (313).

2. The protective air respirator according to claim 1, characterized in that, The gas cylinder section (32) includes a gas cylinder (321), a pressure sensor (322) is fixedly installed on the top of the gas cylinder (321), a valve (323) is provided on the top of the pressure sensor (322), a power block (324) is provided on one side of the back plate (1), and a charging port (325) is provided at the bottom of the power block (324).

3. A protective air respirator according to claim 2, characterized in that, The gas cylinder (321) is movably installed inside the inner shell (312). The top of the gas cylinder (321) passes through the inner shell (312) and the screw cap (314) in sequence, and the top of the gas cylinder (321) extends to the top of the screw cap (314). The bottom of the screw cap (314) abuts against the gas cylinder (321).

4. A protective air respirator according to claim 2, characterized in that, The mask part (41) includes an outer tube (411), an air supply pipe (412) is fixedly installed inside the outer tube (411), a mask (413) is fixedly installed at one end of the air supply pipe (412), a sealing ring (414) is fixedly installed on one side of the mask (413), a strap (415) is fixedly installed in the middle of the mask (413), the outer tube (411) is set on the top of the connecting seat (2), and the other end of the air supply pipe (412) is fixedly installed on the top of the gas cylinder (321).

5. A protective air respirator according to claim 2, characterized in that, The warning part (42) includes a display screen (421), a speaker (422) is fixedly installed on one side of the display screen (421), and shoulder straps (423) are provided on both sides of the back plate (1). The display screen (421) is fixedly installed on one side of the outer shell (311).

6. A protective air respirator according to claim 5, characterized in that, The speaker (422) is electrically connected to the pressure sensor (322), the display screen (421) is electrically connected to the pressure sensor (322), the two ends of the shoulder strap (423) are fixedly connected to the top and bottom of the connector (2) respectively, and the display screen (421) is electrically connected to the power block (324).

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