Fire-fighting gas mask
By using a mounting frame and adjustment mechanism in the fire gas mask, combined with water-absorbing cotton and a diversion rod, the existing fire gas mask lenses are solved, and the distance between the lenses and the human eyes is flexible and effective removal of sweat is achieved, ensuring clear and safe sight of firefighters.
Patent Information
- Application Number
- CN202421349994.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-13
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-06-13
AI Technical Summary
The lenses of existing fire gas masks cannot be adjusted freely according to the needs of different personnel, resulting in blurred vision, and sweat can easily blur the lenses during high-intensity exercise, affecting vision.
A fire gas mask is designed, using a mounting frame and an adjustment mechanism. By combining adjustment screw, adjustment plate, spring and telescopic rod, the distance between the lens and the human eye can be flexibly adjusted, and the setting of the absorbent cotton and the guide rod can effectively avoid sweat from blurring the lens.
It realizes flexible adjustment of the distance between the lens and the human eye, avoids sweat blurring, ensures clear vision of firefighters, and reduces safety risks caused by obstruction of vision.
Smart Images
Figure CN222788338U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fire protection products, in particular to a fire protection gas mask. Background Art
[0002] As fire protection equipment, fire gas masks are used to provide effective protection for personnel's respiratory organs, eyes and facial skin. The mask is an important component of the fire gas mask and is the component that isolates the personnel's face from the external contaminated air.
[0003] Current fire-fighting gas masks can be installed with lenses to meet the needs of people wearing glasses, but they are generally fixed structures and cannot freely adjust the distance between the lenses and the human eyes according to the needs of different people, resulting in blurred vision. In addition, during use, firefighters sweat a lot due to high-intensity exercise, and the dripping sweat can easily blur the lenses, which will further affect the firefighters' vision and cause serious consequences. Utility Model Content
[0004] In view of the technical problems in the prior art, the utility model provides a fire-fighting gas mask, comprising a mask body, wherein the mask body is provided with a transparent window and a breathing hole, a lens is installed in the transparent window through a fixing component, the breathing hole is connected with the outside through a filtering component, the fixing component comprises a mounting frame and an adjusting mechanism, the mounting frame is movably connected with the mask body through the adjusting mechanism, a card slot and a collecting chamber are provided on the mounting frame, and the collecting chamber is located below the card slot, the edge of the lens is fixedly connected with the card slot, a groove surrounding the lens is provided at the bottom of the card slot, and the groove is connected with the collecting chamber.
[0005] Furthermore, the adjustment mechanism includes an adjusting screw, an adjusting plate, a spring and a telescopic rod, one end of the adjusting screw is threadedly connected to the edge of the cover body near the transparent window and extends out of the cover body, the other end of the adjusting screw is rotatably connected to the adjusting plate, the two ends of the telescopic rod are respectively fixedly connected to the adjusting plate and the mounting frame, the spring is sleeved on the outside of the telescopic rod and abuts against the adjusting plate and the mounting frame, and the mounting frame moves linearly towards or away from the transparent window when the adjusting screw and the cover body are threadedly engaged.
[0006] Furthermore, the adjustment mechanism also includes a knob, and the knob is detachably connected to an end of the adjustment screw extending outside the cover.
[0007] Furthermore, absorbent cotton is provided in the card slot, the edge of the lens is embedded in the absorbent cotton, and the absorbent cotton protrudes from the surface of the mounting frame.
[0008] Furthermore, a guide rod is fixedly installed in the groove, the surface of the guide rod is in contact with the absorbent cotton, and the end of the guide rod extends into the collection chamber.
[0009] Furthermore, the mounting frame is provided with a plurality of air guide channels, which are spaced apart above the lens, one end of the air guide channel is connected to the lens surface through an air guide hole, and the other end of the air guide channel is connected to the air inlet channel of the breathing hole, a one-way valve is provided in the air guide channel, and the conducting direction of the one-way valve is from the air inlet channel to the lens.
[0010] Beneficial effects:
[0011] 1. In the utility model, the distance between the lens and the human eye can be conveniently adjusted by means of the mounting frame, the adjustment mechanism, and the arrangement of the card slot, the collection chamber and the groove on the mounting frame, so as to meet the use requirements of different firefighters. In addition, the diversion effect of the groove can be utilized to discharge sweat into the collection chamber, effectively preventing sweat from blurring the lens and preventing the firefighters from having their vision obstructed.
[0012] 2. In the present invention, by setting the adjusting screw, adjusting plate, spring and telescopic rod, the distance between the lens and the human eye can be adjusted quickly and conveniently by means of the threaded engagement of the adjusting screw. In addition, the buffering of the spring can also be used to achieve fine adjustment of the distance between the lens and the human eye, while ensuring that the mounting frame can fit closely to the human eye, thereby facilitating the flow of sweat into the groove; combined with the setting of the knob, the adjusting screw can be conveniently rotated for adjustment.
[0013] 3. In the utility model, the provision of absorbent cotton can improve the effect of absorbing sweat, further prevent sweat from flowing directly into the lens and causing blurred lenses. Combined with the provision of the absorbent cotton protruding from the surface of the mounting frame, it can be made close to the skin, which can improve the sweat absorption effect on the one hand and better protect the skin on the other hand. The provision of the guide rod can facilitate the discharge of sweat into the collection chamber. Combined with the fit between the guide rod and the absorbent cotton and the setting of the spring elastic force, the elastic force of the spring can be used to squeeze the sweat out of the absorbent cotton and flow into the collection chamber along with the guide rod, thereby improving the continuous absorption effect of the absorbent cotton.
[0014] 4. In the present invention, by setting up the air guide channel and the air guide hole, part of the gas brought by the inhalation can be used to blow air to the surface of the lens, thereby further preventing the lens from being blurred by sweat, and at the same time appropriately cooling the firefighters. Combined with the setting of the one-way valve, it can prevent the exhaled gas from blowing to the lens and causing the lens to mist. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0016] Figure 1 This is a schematic diagram of the structure of the utility model from the overall front view;
[0017] Figure 2 This is a schematic diagram of the structure of the utility model when viewed from the back;
[0018] Figure 3 This is a schematic diagram of the structure of the fixed component of the utility model;
[0019] Figure 4 This is a schematic diagram of the installation structure of the adjustment mechanism of the utility model.
[0020] Description of reference numerals:
[0021] 100. hood body; 1. transparent window; 2. breathing hole; 3. filter assembly; 4. mounting bracket; 5. adjustment mechanism; 51. adjustment screw; 52. adjustment plate; 53. spring; 54. telescopic rod; 55. knob; 6. slot; 7. collection chamber; 8. groove; 9. air guide hole. DETAILED DESCRIPTION
[0022] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.
[0023] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.
[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0025] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0026] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0027] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.
[0028] The utility model provides a fire-fighting gas mask, such as Figure 1 , Figure 2 and Figure 3 As shown, it includes a cover body 100, and the cover body 100 is provided with a transparent window 1 and a breathing hole 2. A lens is installed in the transparent window 1 through a fixing component, and the breathing hole 2 is connected with the outside through a filtering component 3. The fixing component includes a mounting frame 4 and an adjusting mechanism 5. The mounting frame 4 is movably connected with the cover body 100 through the adjusting mechanism 5. The mounting frame 4 is provided with a card slot 6 and a collecting chamber 7, and the collecting chamber 7 is located below the card slot 6. The edge of the lens is fixedly connected with the card slot 6, and the bottom of the card slot 6 is provided with a groove 8 surrounding the lens, and the groove 8 is connected with the collecting chamber 7. In order to accelerate the entry of sweat into the collecting chamber 7, it is preferred that the groove 8 is located below the lens and is connected with the collecting chamber 7.
[0029] In this embodiment, by means of the mounting frame 4, the adjustment mechanism 5, and the arrangement of the card slot 6, the collection chamber 7, and the groove 8 on the mounting frame 4, the distance between the lens and the human eye can be conveniently adjusted to meet the use requirements of different firefighters. In addition, the diversion effect of the groove 8 can be utilized to discharge sweat into the collection chamber 7, effectively preventing sweat from blurring the lens and preventing the firefighters' vision from being obstructed.
[0030] In the present invention, preferably, Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the adjusting mechanism 5 includes an adjusting screw 51, an adjusting plate 52, a spring 53 and a telescopic rod 54, one end of the adjusting screw 51 is threadedly connected to the edge of the cover body 100 near the transparent window 1 and extends out of the cover body 100, the other end of the adjusting screw 51 is rotatably connected to the adjusting plate 52, the two ends of the telescopic rod 54 are respectively fixedly connected to the adjusting plate 52 and the mounting frame 4, the spring 53 is sleeved on the outside of the telescopic rod 54, and abuts against the adjusting plate 52 and the mounting frame 4, the mounting frame 4 moves linearly towards or away from the transparent window 1 under the threaded engagement of the adjusting screw 51 and the cover body 100, to ensure its linear movement, a guide rod can be set between the adjusting plate 52 and the cover body 100; the adjusting mechanism 5 also includes a knob 55, the knob 55 is detachably connected to the end of the adjusting screw 51 extending out of the cover body 100.
[0031] In this embodiment, by setting the adjusting screw 51, the adjusting plate 52, the spring 53 and the telescopic rod 54, the threaded engagement of the adjusting screw 51 can be used to conveniently and quickly adjust the distance between the lens and the human eye. In addition, the buffering of the spring 53 can also be used to achieve fine-tuning of the distance between the lens and the human eye. At the same time, it is ensured that the mounting frame 4 can fit closely with the human eye, so as to facilitate sweat to flow into the groove 8. In order to avoid the lens being too close and affecting the line of sight, the depth of the card slot 6 can be appropriately deepened to ensure that the distance between the lens and the surface of the mounting frame 4 is consistent with the normal distance when wearing glasses; combined with the setting of the knob 55, the adjusting screw 51 can be conveniently rotated and adjusted.
[0032] In the present invention, preferably, Figure 2 and Figure 3 As shown, absorbent cotton is also provided in the card slot 6, the edge of the lens is embedded in the absorbent cotton, and the absorbent cotton protrudes from the surface of the mounting frame 4; a guide rod is fixedly installed in the groove 8, the surface of the guide rod is in contact with the absorbent cotton, and the end of the guide rod extends into the collection chamber 7.
[0033] In this embodiment, the provision of absorbent cotton can improve the effect of absorbing sweat, further prevent sweat from directly flowing into the lens and causing blurred lenses, and combined with the provision of the absorbent cotton protruding from the surface of the mounting frame 4, it can be made close to the skin, which can improve the sweat absorption effect on the one hand and better protect the skin on the other hand; the provision of the guide rod can facilitate the discharge of sweat into the collection chamber 7, and combined with the fit between the guide rod and the absorbent cotton and the setting of the elastic force of the spring 53, the elastic force of the spring 53 can be used to squeeze the sweat out of the absorbent cotton and flow into the collection chamber 7 along with the guide rod, thereby improving the continuous absorption effect of the absorbent cotton.
[0034] In the present invention, preferably, Figure 2 and Figure 3 As shown, the mounting frame 4 is also provided with a plurality of air guide channels, which are spaced apart above the lens, one end of the air guide channel is connected to the lens surface through the air guide hole 11, and the other end of the air guide channel is connected to the air inlet channel of the breathing hole 2, a one-way valve is provided in the air guide channel, and the conducting direction of the one-way valve is from the air inlet channel to the lens.
[0035] In this embodiment, through the arrangement of the air guide channel and the air guide hole 11, part of the gas brought by the inhalation can be used to blow air to the surface of the lens, thereby further preventing the lens from being blurred by sweat. Combined with the arrangement of the air guide hole 11 located above the lens, the sweat can be accelerated to leave the lens. In order to avoid affecting normal breathing due to excessive gas flowing into the air guide channel, the cross-sectional size of the air guide channel can be designed to be much smaller than the air inlet channel of the ventilator. At the same time, the firefighters can be appropriately cooled. Combined with the arrangement of the one-way valve, the exhaled gas can be prevented from blowing onto the lens and causing water mist to appear on the lens.
[0036] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0037] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.
Claims
1. A fire-fighting gas mask, comprising a mask body (100), wherein the mask body (100) is provided with a transparent window (1) and a breathing hole (2), wherein a lens is installed in the transparent window (1) through a fixing component, and the breathing hole (2) is connected to the outside through a filter component (3), wherein: The fixing assembly comprises a mounting frame (4) and an adjusting mechanism (5); the mounting frame (4) is movably connected to the cover body (100) via the adjusting mechanism (5); a card slot (6) and a collection chamber (7) are provided on the mounting frame (4); the collection chamber (7) is located below the card slot (6); the edge of the lens is fixedly engaged with the card slot (6); a groove (8) surrounding the lens is provided at the bottom of the card slot (6); and the groove (8) is communicated with the collection chamber (7).
2. A fire-fighting gas mask according to claim 1, characterized in that: The adjusting mechanism (5) comprises an adjusting screw (51), an adjusting plate (52), a spring (53) and a telescopic rod (54); one end of the adjusting screw (51) is threadedly connected to an edge of the cover body (100) close to the transparent window (1) and extends out of the cover body (100); the other end of the adjusting screw (51) is rotatably connected to the adjusting plate (52); two ends of the telescopic rod (54) are respectively fixedly connected to the adjusting plate (52) and the mounting frame (4); the spring (53) is sleeved outside the telescopic rod (54) and abuts against the adjusting plate (52) and the mounting frame (4); and the mounting frame (4) moves linearly towards or away from the transparent window (1) when the adjusting screw (51) and the cover body (100) are screwed together.
3. A fire-fighting gas mask according to claim 2, characterized in that: The adjustment mechanism (5) further comprises a knob (55), and the knob (55) is detachably connected to an end of the adjustment screw rod (51) extending outside the cover body (100).
4. A fire-fighting gas mask according to any one of claims 1 to 3, characterized in that: Water-absorbing cotton is also arranged in the card slot (6), the edge of the lens is embedded in the water-absorbing cotton, and the water-absorbing cotton protrudes from the surface of the mounting frame (4).
5. A fire-fighting gas mask according to claim 4, characterized in that: A guide rod is fixedly installed in the groove (8), the surface of the guide rod is in contact with the absorbent cotton, and the end of the guide rod extends into the collection chamber (7).
6. A fire-fighting gas mask according to claim 5, characterized in that: The mounting frame (4) is also provided with a plurality of air guide channels, which are arranged at intervals above the lens, one end of the air guide channel is connected to the surface of the lens through the air guide hole (11), and the other end of the air guide channel is connected to the air inlet channel of the breathing hole (2), a one-way valve is provided in the air guide channel, and the conducting direction of the one-way valve is from the air inlet channel to the lens.