Fire-fighting air respirator capable of blocking dust

Abstract

The utility model relates to the technical field of air respirators, and discloses a fire-fighting air respirator capable of blocking dust, which comprises a mask, sliding rods are fixedly mounted on the left side and the right side of the front end outside the mask through fixing frames, sliding shells are arranged outside the two sliding rods and located at the front end of the mask, and the sliding shells are in sliding connection with the sliding rods. A fixed arc plate is arranged in the sliding shell, a scraping plate is installed on the side, close to the mask, in the fixed arc plate, the scraping plate is fixedly connected with the fixed arc plate, and a push rod is installed on the side, located outside the sliding shell, of the front end of the outer portion of the fixed arc plate. The scraping plate structure is additionally arranged outside the mask to move up and down, so that the mask is more convenient to clean.

Description

Technical Field

[0001] The utility model relates to the technical field of air respirators, in particular to a fire-fighting air respirator with dust barrier function. Background Technique

[0002] An air respirator is a self-contained open-type air respirator, which is widely used in fire fighting, chemical industry, ships, petroleum, smelting, warehouses, laboratories, mines and other departments. It is used for firefighters or rescue and relief personnel to extinguish fires, conduct emergency rescue and disaster relief, and carry out rescue work safely and effectively in various environments such as thick smoke, poisonous gas, steam or lack of oxygen.

[0003] For example, the Chinese authorized patent with the publication number of CN 217908645 U (a fire-fighting air respirator convenient to carry on the back): includes a face mask and a back pad. One side of the back pad is provided with a face mask. One end of the back pad is movably connected with an oxygen cylinder, and the bottom end of the oxygen cylinder is fixedly connected with a connection port.

[0004] In the above-mentioned prior art, dust will adhere to the outside of the face mask during use, resulting in blocked vision, and it is inconvenient for firefighters to wipe it while wearing gloves. Therefore, a fire-fighting air respirator with dust barrier function is proposed. Content of the Utility Model

[0005] (1) Technical Problems to be Solved

[0006] In view of the deficiencies of the prior art, the utility model provides a fire-fighting air respirator with dust barrier function to solve the problems raised in the above background technique.

[0007] (2) Technical Solutions

[0008] To achieve the above object, the utility model provides the following technical solutions: A fire-fighting air respirator with dust barrier function, including a face mask. On the left and right sides of the front end of the outside of the face mask, slide bars are fixedly installed through fixing frames. On the outside of the two slide bars and at the front end of the face mask, a slide shell is provided, and the slide shell is slidably connected with the slide bars. Inside the slide shell, a fixed arc plate is provided. On the side of the fixed arc plate close to the face mask, a scraping plate is installed, and the scraping plate is fixedly connected with the fixed arc plate. On the front end of the outside of the fixed arc plate and on one side of the outside of the slide shell, a push rod is installed.

[0009] Preferably, the push rod is fixedly connected with the slide shell. On one side of the front end of the outside of the push rod, a fixed disk is installed, and the fixed disk is fixedly connected with the push rod. The fixed disk is used for pulling the push rod during use.

[0010] Preferably, a return spring is installed between the slide shell and the fixed disk on the outside of the push rod, and the return spring is fixedly connected with the fixed disk. The return spring enables the push rod to have automatic reset property, so that the scraping plate is kept at a position away from the face mask.

[0011] Preferably, a water tank is installed on one side of the upper end of the mask exterior, and the water tank is fixedly connected to the mask.

[0012] Preferably, a piston cover is installed inside the upper end of the mask. A pull block is installed on the upper end of the piston cover, and the pull block is fixedly connected to the piston cover. The pull block is used to pull the piston cover.

[0013] Preferably, a plurality of spray nozzles are evenly distributed along a ring shape on the front side of the lower end of the water tank. The spray nozzles are integrally formed with the water tank, and the spray nozzles are used to spray water flow.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the present utility model provides a fire-fighting air respirator capable of dust blocking, having the following beneficial effects:

[0016] 1. Press the fixed disk so that the push rod moves accordingly. The fixed arc plate at one end of the push rod drives the scraper to move towards the mask. Slide the sliding shell downward so that the scraper scrapes along the mask for cleaning. In this way, it is cleaner than directly wiping with gloves by firefighters, solving the problem that the existing mask is affected by dust adhesion and affects the line of sight in the background technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the three-dimensional view of the overall structure of the present utility model;

[0018] Figure 2 is the top view of the internal structure of the sliding shell of the present utility model;

[0019] Figure 3 is the bottom view of the separated state of the water tank and the piston cover of the present utility model.

[0020] In the figure: 1, mask; 2, water tank; 3, piston cover; 4, pull block; 5, sliding rod; 6, sliding shell; 7, push rod; 8, return spring; 9, fixed disk; 10, fixed arc plate; 11, scraper; 12, spray nozzle. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] The present utility model provides a technical solution, a fire-fighting air respirator capable of dust blocking. Please refer to Figure 1 、 Figure 2 andFigure 3 It includes a face mask 1. Slide rods 5 are fixedly installed on the left and right sides of the front end outside the face mask 1 through fixing brackets. Slide shells 6 are arranged at the front end of the face mask 1 outside the two slide rods 5, and the slide shells 6 are slidably connected to the slide rods 5. A fixed arc plate 10 is arranged inside the slide shell 6. A scraper 11 is installed on one side of the fixed arc plate 10 close to the face mask 1, and the scraper 11 is fixedly connected to the fixed arc plate 10. A push rod 7 is installed on one side of the front end outside the fixed arc plate 10 and outside the slide shell 6.

[0023] During use, press the fixed disk 9 so that the push rod 7 moves accordingly. The fixed arc plate 10 at one end of the push rod 7 drives the scraper 11 to move towards the face mask 1. Slide the slide shell 6 downward so that the scraper 11 scrapes along the face mask 1 for cleaning. In this way, it is cleaner than directly wiping with gloves by firefighters. It should be noted that, in order to save space and highlight the innovative elements of this patent, this solution is an improvement on the non-face mask and back pad related structures on the basis of the existing air respirator. Some conventional structures such as the face mask 1, the return spring 8, the scraper 11, etc. are not described in this patent in detail.

[0024] Please refer to Figure 1 and Figure 2 , the push rod 7 is fixedly connected to the slide shell 6. A fixed disk 9 is installed on one side of the front end outside the push rod 7, and the fixed disk 9 is fixedly connected to the push rod 7. The fixed disk 9 is used to pull the push rod 7 for use.

[0025] Please refer to Figure 1 and Figure 2 , a return spring 8 is installed between the slide shell 6 and the fixed disk 9 outside the push rod 7, and the return spring 8 is fixedly connected to the fixed disk 9. The return spring 8 enables the push rod 7 to have automatic resetability, so that the scraper 11 remains at a position away from the face mask 1.

[0026] Please refer to Figure 1 and Figure 3 , a water tank 2 is installed on one side of the upper end outside the face mask 1, and the water tank 2 is fixedly connected to the face mask 1.

[0027] Please refer to Figure 1 and Figure 3 , a piston cover 3 is installed inside the upper end of the face mask 1. A pull block 4 is installed at the upper end of the piston cover 3, and the pull block 4 is fixedly connected to the piston cover 3. The pull block 4 is used to pull the piston cover 3.

[0028] Please refer to Figure 3 , a plurality of spray nozzles 12 are arranged at the front side of the lower end of the water tank 2 and are evenly distributed in a ring shape. The spray nozzles 12 are integrally formed with the water tank 2. The spray nozzles 12 are used to spray water flow.

[0029] Working principle of this device: Press the fixed disk 9, causing the push rod 7 to move accordingly. The fixed arc plate 10 at one end of the push rod 7 drives the scraper 11 to move towards the face mask 1. Slide the sliding shell 6 downward so that the scraper 11 scrapes along the face mask 1 for cleaning. In this way, it is cleaner compared to directly wiping with gloves by firefighters. Pour liquid water into the water tank 2 and then close the piston cover 3. When water flow is needed, press the pull block 4 downward to make the piston cover 3 descend. The liquid water inside the water tank 2 is squeezed out through the water spray nozzle 12 to the outside of the face mask 1. Cooperating with the up-and-down scraping of the scraper 11, the cleaning of the face mask 1 becomes more convenient and clean.

[0030] It should be noted that in this text, relative terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or device.

[0031] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A dust-proof fire-fighting air breathing apparatus, comprising a mask (1), characterized in that: Slide bars (5) are fixedly mounted on both left and right sides of the front end of the exterior of the mask (1) via a fixing frame; a sliding shell (6) is arranged outside the two slide bars (5) at the front end of the mask (1); the sliding shell (6) is slidably connected to the slide bars (5); a fixed arc plate (10) is arranged inside the sliding shell (6); a scraper (11) is installed on the side of the interior of the fixed arc plate (10) close to the mask (1); the scraper (11) is fixedly connected to the fixed arc plate (10); a push rod (7) is installed on the side of the exterior of the fixed arc plate (10) at the front end of the exterior of the sliding shell (6).

2. A dust-proof fire-fighting air breathing apparatus according to claim 1, characterized in that: The push rod (7) is fixedly connected to the sliding shell (6), a fixing plate (9) is installed on one side of the outer front end of the push rod (7), and the fixing plate (9) is fixedly connected to the push rod (7).

3. A dust-proof fire-fighting air breathing apparatus according to claim 2, characterized in that: A return spring (8) is installed outside the push rod (7) between the sliding shell (6) and the fixed disk (9), and the return spring (8) is fixedly connected to the fixed disk (9).

4. The dust-proof fire-fighting air breathing apparatus according to claim 1, characterized in that: A water tank (2) is installed on one side of the upper end of the exterior of the mask (1), and the water tank (2) is fixedly connected to the mask (1).

5. The dust-proof fire-fighting air breathing apparatus according to claim 4, characterized in that: A piston cover (3) is installed inside the upper end of the mask (1), a pull block (4) is installed on the upper end of the piston cover (3), and the pull block (4) is fixedly connected to the piston cover (3).

6. The dust-blocking fire-fighting air breathing apparatus according to claim 5, characterized in that: A plurality of water spray ports (12) evenly distributed along a ring shape are arranged on the front side of the lower end of the water tank (2), and the water spray ports (12) are integrally formed with the water tank (2).

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