Dustproof quick-release mask of positive pressure type air respirator

Abstract

The utility model discloses a dustproof quick-release mask of a positive pressure type air respirator. The dustproof quick-release mask comprises a fire-fighting mask body, a bearing framework and a fireproof glass panel, wherein the bearing framework and the fireproof glass panel are used for forming the fire-fighting mask body; bandage positioning frames are fixedly arranged on the left side and the right side of the rear end of the bearing framework in an up-down symmetry mode. A visual window is formed in the center of the interior of the bearing framework, and the back face of the bearing framework is fixedly connected with the fireproof glass panel. According to the dustproof quick-release mask of the positive pressure type air respirator, the visualization effect during disaster relief is achieved through the fireproof glass panel and the dust-blocking replacement panel which are distributed front and back in the fire-fighting mask body, and the fastening performance of connection between the dust-blocking replacement panel and the bearing framework is guaranteed through the buckled turner; and meanwhile, the dust-blocking replacement panel can be more efficiently disassembled and assembled, so that the disassembly convenience is improved, and the visual range during fire fighting and disaster relief is widened.

Description

TECHNICAL FIELD

[0001] The utility model relates to fire fighting equipment technical field, concretely is a dustproof quick detachable face guard of positive pressure type air respirator. BACKGROUND

[0002] Positive pressure type air respirator is usually used in fire fighting, disaster relief field, is the self -contained open type air respirator, its through the face guard equipped with oxygen delivery to the user and breathes, can make firemen and rescue personnel when carrying out fire fighting or rescue, prevent inhaling the toxic gas, smoke, harmful pollutants suspended in air etc.

[0003] But the existing positive pressure type air respirator and its equipped face guard in the use process, because the material combustion of fire scene, lead to dust, oil dirt float in the air, along with the action of firemen wearing face guard, lead to the surface of face guard stickiness a large amount of dust oil dirt, and difficult to realize fast, effective cleaning, very influence the visual range of fire scene, influence the efficiency of personnel rescue under the fire situation, even threaten the life safety of rescue personnel.

[0004] Therefore, we propose a dustproof quick detachable face guard of positive pressure type air respirator in order to solve the above problems. CONTENT OF THE UTILITY MODEL

[0005] The utility model discloses a dustproof quick detachable face guard of positive pressure type air respirator, and the utility model discloses the purpose is to provide a dustproof quick detachable face guard of positive pressure type air respirator, to solve the existing positive pressure type air respirator and its equipped face guard in the use process, because the material combustion of fire scene, lead to dust, oil dirt float in the air, along with the action of firemen wearing face guard, lead to the surface of face guard stickiness a large amount of dust oil dirt, and difficult to realize fast, effective cleaning, very influence the visual range of fire scene, influence the efficiency of personnel rescue under the fire situation problem.

[0006] To realize above-mentioned purpose, the utility model provides the following technical scheme: a dustproof quick detachable face guard of positive pressure type air respirator, including fire fighting face guard body and the load skeleton and fireproof glass panel for the composition fire fighting face guard body,

[0007] The left and right sides of the rear end of the load skeleton are fixedly provided with a strap positioning frame in an up-down symmetrical mode, and the dustproof quick detachable face guard further comprises:

[0008] A visible window is formed at the inner central position of the load skeleton, and the back surface of the load skeleton is fixedly connected with the fireproof glass panel.

[0009] Preferably, the load skeleton realizes the visual effect under the fireproof condition through the visible window on the front surface and the fixedly installed fireproof glass panel.

[0010] Preferably, the top surface of the bearing framework is fixedly provided with a wearing headgear, and the wearing headgear is used for firefighters to wear the overall fire mask body on the face.

[0011] Preferably, the bottom end of the bearing framework is fixedly provided with a breathing connector, and the breathing connector is used for conveying the air supply of the positive pressure air respirator between the fireproof glass panel and the face of the firefighter, so as to realize normal breathing.

[0012] Preferably, the inside of the bearing framework is provided with a limiting guide groove, and the limiting guide groove is internally provided with a dustproof replacement panel.

[0013] Preferably, the dustproof replacement panel is made of PPO material to prevent the dustproof replacement panel from melting at high temperature, and the dustproof replacement panel is quickly disassembled and installed in the limiting guide groove in the bearing framework through a flexible structure.

[0014] Preferably, the top end of the dustproof replacement panel is fixedly provided with a positioning base, and the top end of the positioning base is connected to the top end of the buckling flipper through a torsional spring hinge.

[0015] Preferably, the bottom end of the buckling flipper at the top end of the dustproof replacement panel is rotatably connected to the front surface of the bearing framework, so as to improve the stability of the installation of the dustproof replacement panel and the bearing framework.

[0016] Preferably, the dustproof replacement panel and the fireproof glass panel are installed in a front-rear parallel manner, and dust and oil stains melted at the fire scene are separated by the dustproof replacement panel, so that the dustproof replacement panel adhering to dust and oil stains is disassembled within the working time of the positive pressure air respirator, thereby providing firefighters with a clear rescue vision.

[0017] Compared with the prior art, the dustproof quick disassembly mask of the positive pressure air respirator has the following beneficial effects:

[0018] 1. The visible window opened in the inside of the bearing framework corresponds to the fireproof glass panel on the back surface, and the wearing headgear installed at the top end of the bearing framework is worn on the head of the firefighter, so that the overall fire mask body covers the face of the firefighter;

[0019] The breathing connector at the bottom end of the bearing framework delivers air to the firefighter to achieve normal breathing during fire rescue, and the band positioning frame fixedly installed at the rear end of the bearing framework connects the band to prevent the fire mask body from falling off the head of the firefighter and causing danger.

[0020] 2. The dustproof replacement panel is installed through the limiting guide groove, and after installation, the dustproof replacement panel is located in front of the fireproof glass panel in parallel, and the bottom end of the buckle flipper is buckled to the front surface of the bearing framework by turning over the buckle flipper to the front, so that the dustproof replacement panel is prevented from falling off during movement;

[0021] The buckle flipper is rotated upward to be separated from the bearing framework, and the dustproof replacement panel in the limiting guide groove is pulled out upward, and then the fireproof glass panel is worked, so that the convenience of disassembly is improved, and the visible range during fire rescue is improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a whole three-dimensional structure schematic view of the utility model;

[0023] Figure 2 It is a fireproof glass panel installation structure schematic view of the utility model;

[0024] Figure 3 It is a dustproof replacement panel installation structure schematic view of the utility model;

[0025] Figure 4 It is a dustproof replacement panel installation structure schematic view of the utility model; Figure 3 It is an enlarged structure schematic view of A in the utility model;

[0026] Figure 5 It is a structure schematic view of the utility model after the buckle flipper is rotated;

[0027] Figure 6 It is a three-dimensional structure schematic view of the utility model of the fireproof glass panel and the dustproof replacement panel.

[0028] In the figure: 1, fire mask body; 2, bearing framework; 3, fireproof glass panel; 4, band positioning frame; 5, visible window; 6, wearing head cover; 7, breathing connector; 8, limiting guide groove; 9, dustproof replacement panel; 10, positioning base; 11, buckle flipper. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application.

[0030] Please refer to Figures 1-6 The present application provides the following technical solutions:

[0031] Embodiment 1: In order to solve the problems existing in the actual use of the existing fire mask body 1, therefore, the technical scheme is as follows, a dustproof quick-release mask of a positive pressure air respirator, comprising a fire mask body 1, and a bearing framework 2 and a fireproof glass panel 3 used to form the fire mask body 1; the bearing framework 2 is fixedly provided with a binding strap positioning frame 4 on the left and right sides of the rear end in an up-down symmetrical manner; a visible window 5 is formed at the inner center position of the bearing framework 2, and the back surface of the bearing framework 2 is fixedly connected with the fireproof glass panel 3; the bearing framework 2 realizes the visible effect in the fireproof condition through the visible window 5 on the front surface and the fixedly installed fireproof glass panel 3.

[0032] The top surface of the bearing framework 2 is fixedly provided with a wearing headgear 6, and the wearing headgear 6 is used for the fire fighter to wear the overall fire mask body 1 on the face; the bottom end of the bearing framework 2 is fixedly provided with a breathing connector 7, and the breathing connector 7 is used to deliver the air supply of the positive pressure air respirator to the space between the fireproof glass panel 3 and the face of the fire fighter, so as to realize normal breathing.

[0033] As Figure 1 , Figure 6 shown, the fire mask body 1 is composed of the bearing framework 2 and the back fireproof glass panel 3, the visible window 5 formed in the inside of the bearing framework 2 corresponds to the back fireproof glass panel 3, and the wearing headgear 6 installed on the top end of the bearing framework 2 is worn on the head of the fire fighter, so that the overall fire mask body 1 covers the face of the fire fighter;

[0034] Meanwhile, the breathing connector 7 at the bottom end of the bearing framework 2 is connected with the positive pressure air respirator, so as to deliver the air to the fire fighter to realize normal breathing in the process of fire rescue, and the binding strap positioning frame 4 fixedly installed at the rear end of the bearing framework 2 connects the binding strap, preventing the fire mask body 1 from falling off the head of the fire fighter and causing danger.

[0035] In order to solve the problems existing in the actual use of the existing fire mask body 1, therefore, the embodiment is characterized in that a limiting guide groove 8 is arranged in the bearing framework 2, and a dustproof replacement panel 9 is arranged in the limiting guide groove 8.

[0036] The bottom end of the dustproof replacement panel 9 is connected to the front surface of the bearing framework 2 by rotating the buckle flipper 11, so as to improve the stability of the installation of the dustproof replacement panel 9 and the bearing framework 2.

[0037] As shown in Figures 3-5 , the dustproof replacement panel 9 is installed through the limiting guide groove 8 arranged in the bearing framework 2, and the installed dustproof replacement panel 9 is located in front of the fireproof glass panel 3 in parallel, and the buckle flipper 11 hinged to the top end of the dustproof replacement panel 9 and the positioning base 10 is turned forward, so that the bottom end of the buckle flipper 11 is clamped to the front surface of the bearing framework 2, preventing the dustproof replacement panel 9 from falling off during movement.

[0038] Further, when the dustproof replacement panel 9 is stuck with dust and oil stains, affecting the rescue vision, the buckle flipper 11 is manually rotated upward to be separated from the bearing framework 2 (the dustproof replacement panel 9 is made of PPO material, having a flexible structure to prevent clamping misalignment during disassembly, and having a high temperature resistance to ensure use effect in high temperature conditions), and the dustproof replacement panel 9 in the limiting guide groove 8 is pulled out upward, and then the fireproof glass panel 3 is used, thereby improving the convenience of disassembly and the visibility during fire fighting and disaster relief.

[0039] Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or equivalently replace part of the technical features, and any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A dustproof quick-release mask for a positive pressure air respirator, comprising a fire mask body (1), and a bearing framework (2) and a fireproof glass panel (3) for composing the fire mask body (1); The left and right sides of the rear end of the bearing framework (2) are fixedly provided with a strap positioning frame (4) in an up-down symmetrical manner; characterized in that Further comprising: A visible window (5) is formed at the inner central position of the bearing framework (2), and the back of the bearing framework (2) is fixedly connected with the fireproof glass panel (3); A limiting guide groove (8) is formed in the interior of the bearing framework (2), and a dust-blocking replacement panel (9) is installed in the limiting guide groove (8); The dust-blocking replacement panel (9) is made of PPO material to prevent it from melting under high temperature, and the dust-blocking replacement panel (9) is quickly disassembled and installed in the limiting guide groove (8) in the bearing framework (2) through a flexible structure; A positioning base (10) is fixedly arranged at the top middle of the dust-blocking replacement panel (9), and the top end of the positioning base (10) is connected to the top end of a buckle flipper (11) through a torsional spring hinged connection.

2. The dustproof quick-release facepiece of a positive pressure air respirator according to claim 1, characterized in that: The bearing framework (2) realizes the visual effect in the fireproof case through the visible window (5) on the front and the fixedly installed fireproof glass panel (3).

3. The dustproof quick-release facepiece of a positive pressure air respirator according to claim 2, characterized in that: A wearing headgear (6) is fixedly arranged on the top surface of the bearing framework (2), and the wearing headgear (6) is used for the firefighter to wear the whole fire mask body (1) on the face.

4. The dustproof quick-release facepiece of a positive pressure air respirator according to claim 3, characterized in that: A breathing connector (7) is fixedly arranged at the bottom end of the bearing framework (2).

5. The dustproof quick-release facepiece of a positive pressure air respirator according to claim 1, characterized in that: The bottom end of the buckle flipper (11) at the top end of the dust-blocking replacement panel (9) is rotatably connected to the front of the bearing framework (2).

6. The dust-proof quick-release facepiece of a positive pressure air respirator according to claim 5, characterized in that: The dust-blocking replacement panel (9) and the fireproof glass panel (3) are installed in a front-rear parallel manner.

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