Fire-fighting display mask

Abstract

The utility model discloses a fire-fighting display mask which comprises a protective mask body, an installation hole is formed in the protective mask body, an air nozzle is installed at the installation hole, a camera module is integrally arranged on one side of the air nozzle, two installation parts are arranged at the front end of the camera module, and a high-definition camera and an infrared camera are installed in the two installation parts respectively. An included angle is formed between the mounting part and the outer surface of the camera module, the camera module is connected with a communication host through a USB signal line, a second positioning ring is arranged on the inner edge of the protective mask, and a grating diffraction waveguide screen is clamped to the second positioning ring. The structure design that the air nozzle and the camera module are integrated is adopted, the installation problem of the camera module is solved, the installation position of the heat insulation head sleeve is ensured, meanwhile, the camera adopts the included angle structure design, the shooting view angle of the camera is kept consistent with the front view angle of a protective mask wearer, and the safety of the protective mask is improved. The problem that the visual angle of the camera deviates from the observation visual angle of a wearer due to installation is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of fire-fighting equipment, in particular to a fire-fighting display mask. Background Art

[0002] In modern fire-fighting and rescue scenes, it is usually a complex environment such as thick smoke, dense fog or darkness, which brings great difficulties to fire-fighting and rescue operations, resulting in the inability to quickly find trapped people in the rescue scene and the difficulty in finding hidden fire points. The thick smoke or dense fog environment at the fire scene will block the line of sight of fire-fighters. However, an infrared camera can penetrate through the thick smoke, dense fog or darkness environment to see the surrounding environment conditions and timely find trapped people or hidden fire points. Therefore, equipping fire-fighters with a fire-fighting display mask can greatly help fire-fighters carry out rescue and fire-fighting operations. However, there are still some defects in the existing fire-fighting display masks:

[0003] First, before wearing the mask, fire-fighters need to put on a heat-insulating headgear to protect the back of the head. The facial position of the heat-insulating headgear is exposed and mainly protected by the mask. To prevent the heat wave at the fire scene from drilling into and scalding the head of fire-fighters through the gap between the heat-insulating headgear and the protective mask, a positioning ring is usually provided on the outer periphery of the protective mask. The heat-insulating headgear can be buckled on the positioning ring to wrap the gap for comprehensive protection. However, since the fire-fighting display mask is also equipped with an infrared camera, the existing infrared camera can only be installed on the positioning ring, which results in the inability to buckle the heat-insulating headgear at the position of the infrared camera. Therefore, there is a risk of scalding the head of fire-fighters.

[0004] Second, the existing infrared camera and the communication host are usually wirelessly connected. However, due to the poor environment at the fire scene, it is easy to interfere with the signal, resulting in a visual delay of the fire-fighting display mask greater than 500 ms. It is difficult to synchronize the viewing screen of the fire-fighting display mask with the shooting screen of the infrared camera, and there is an obvious sense of lag. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a fire-fighting display mask for the deficiencies of the existing technology to solve the problems raised in the background art.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] A fire display face mask, including a protective face mask, the protective face mask is provided with an installation hole, a gas nozzle is installed at the installation hole, a camera module is integrally provided on one side of the gas nozzle, two installation parts are provided at the front end of the camera module, a high-definition camera and an infrared camera are respectively installed in the two installation parts, the installation parts are arranged at an angle with the outer surface of the camera module, so that the high-definition camera and the infrared camera are parallel to the front view direction of the protective face mask, the camera module is connected to a communication host through a USB signal line, a first positioning ring is arranged at the outer edge of the protective face mask, a second positioning ring is arranged at the inner edge of the protective face mask, and a grating diffraction waveguide screen is clamped by the second positioning ring.

[0008] As a preferred solution of the fire display face mask, the camera module includes a camera housing, a camera rear cover is installed at one end of the camera housing close to the protective face mask, a camera inner cavity is formed between the camera rear cover and the camera housing, the installation part is located at the front end of the camera housing, a camera lens is further provided at the front end of the high-definition camera, and camera brackets are installed at the rear ends of both the high-definition camera and the infrared camera, and the camera brackets are connected to the camera housing through fasteners.

[0009] As a preferred solution of the fire display face mask, a camera main board is installed in the camera inner cavity, the camera main board is electrically connected to a first driving board and a second driving board, the first driving board is electrically connected to the high-definition camera, the second driving board is electrically connected to the infrared camera, and a first communication interface is arranged below the camera housing, and the camera main board is electrically connected to the first communication interface.

[0010] As a preferred solution of the fire display face mask, a switch button, a video button and a switching button are further arranged on the camera housing, and the switch button, the video button and the switching button are all electrically connected to the camera main board.

[0011] As a preferred solution of the fire display face mask, the gas nozzle includes a gas nozzle housing and a gas nozzle body, the gas nozzle housing and the camera housing are integrally formed, a first installation opening is arranged above the gas nozzle housing, an installation block is installed at the first installation opening, a positioning strip is installed below the installation block, the positioning strip is made of elastic material, an air pipe connection opening is arranged at the front end of the gas nozzle body, second installation openings are arranged on both sides of the air pipe connection opening, and the positioning strip passes through the second installation openings on both sides and enters the inside of the air pipe connection opening to clamp the air pipe.

[0012] As a preferred solution for the fire display face mask, the communication host includes a host housing and a host rear cover. A host inner cavity is formed between the host housing and the host rear cover. A communication main board and a battery are arranged in the host inner cavity. The battery is installed on a battery bracket and electrically connected to the communication main board. The battery bracket is connected to the host housing through a fastener. A second communication interface is further arranged on the outer surface of the host housing. The communication main board is electrically connected to the second communication interface. The second communication interface is connected to the first communication interface through a USB signal line.

[0013] As a preferred solution for the fire display face mask, the host housing is further provided with a network indicator light and a power indicator light.

[0014] As a preferred solution for the fire display face mask, a height adjusting device is arranged on the upper part of the grating diffraction waveguide screen. The height adjusting device is installed on the second positioning ring.

[0015] As a preferred solution for the fire display face mask, the height adjusting device includes a first adjusting plate and a second adjusting plate. An optical machine is arranged in the first adjusting plate. The upper part of the grating diffraction waveguide screen is inserted into the second adjusting plate. The optical machine is electrically connected to the grating diffraction waveguide screen and the communication host. An adjusting groove is formed on one side of the first adjusting plate close to the second adjusting plate. Adjusting blocks are arranged at corresponding positions of the adjusting groove and the second adjusting plate. Adjusting columns are arranged on the inner side of the upper part of the second positioning ring. First positioning grooves are formed on both sides of the adjusting column. The adjusting column is inserted into the adjusting groove, and the adjusting block is slidably connected to the first positioning groove to adjust the height of the grating diffraction waveguide screen. One end of the first adjusting plate is threadedly connected with an adjusting handle. One end of the adjusting handle is located in the adjusting groove and abuts against the adjusting column.

[0016] As a preferred solution for the fire display face mask, a second positioning groove is formed at one end of the first adjusting plate far from the adjusting handle. A positioning plate is further arranged on the inner side of the upper part of the second positioning ring. The positioning plate is in clearance fit with the second positioning groove.

[0017] The beneficial effects of the present utility model:

[0018] (1) The present utility model adopts a structural design of integrating an air nozzle and a camera module. The camera module does not need to be installed on the first positioning ring, which not only solves the installation problem of the camera module but also ensures the installation position of the heat insulation headgear. At the same time, the camera of the present utility model adopts an included angle structural design, so that the shooting angle of the camera is consistent with the frontal view angle of the wearer of the protective face mask, avoiding the deviation of the camera angle from the observation angle of the wearer due to installation problems.

[0019] (2) The camera of the present utility model is connected to the communication host by wire. The communication host can be fixed on the back frame of the gas cylinder, thereby reducing the visual delay of the communication host. The visual delay is less than 100 ms, the video picture responds more quickly, and there is no lag or trailing feeling. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments of the present utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 is the overall structural schematic diagram of the fire display mask described in the present utility model.

[0022] Figure 2 is the combined structural schematic diagram of the gas nozzle and the camera module described in the present utility model.

[0023] Figure 3 is the disassembled structural schematic diagram of the gas nozzle and the camera module described in the present utility model.

[0024] Figure 4 is the structural schematic diagram of the communication host described in the present utility model.

[0025] Figure 5 is the disassembled structural schematic diagram of the communication host described in the present utility model.

[0026] Figure 6 is the related structural schematic diagram of the grating diffraction waveguide screen described in the present utility model.

[0027] Figure 7 is the disassembled structural schematic diagram of the height adjustment device described in the present utility model.

[0028] In the figure:

[0029] 1. Protective face mask; 2. Air nozzle; 21. Air nozzle housing; 22. Air nozzle body; 23. Mounting block; 24. Positioning strip; 25. Air pipe connection port; 3. Camera module; 31. Mounting part; 32. High-definition camera; 33. Infrared camera; 34. Camera housing; 35. Camera back cover; 36. Camera lens; 37. Camera bracket; 38. Camera main board; 39. First drive board; 310. Second drive board; 311. First communication interface; 312. Switch button; 313. Video button; 314. Switching button; 4. Communication host; 41. Host housing; 42. Host back cover; 43. Communication main board; 44. Battery; 45. Battery bracket; 46. Second communication interface; 47. Network indicator light; 48. Battery level indicator light; 5. First positioning ring; 6. Second positioning ring; 7. Grating diffraction waveguide screen; 8. Height adjustment device; 81. First adjustment plate; 82. Second adjustment plate; 83. Adjustment groove; 84. Adjustment block; 85. Adjustment column; 86. First positioning groove; 87. Adjustment handle; 88. Second positioning groove; 89. Positioning plate; 9. Optical engine. Detailed implementation manners

[0030] The technical solution of the present utility model will be further described below in conjunction with the accompanying drawings and through specific implementation manners.

[0031] Among them, the accompanying drawings are only for illustrative purposes, showing only schematic diagrams, rather than physical diagrams, and should not be construed as a limitation to this patent; in order to better illustrate the embodiments of the present utility model, some components in the accompanying drawings will be omitted, enlarged or reduced, and do not represent the dimensions of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the accompanying drawings may be omitted.

[0032] In the accompanying drawings of the embodiments of the present utility model, the same or similar reference numerals correspond to the same or similar components; in the description of the present utility model, it should be understood that if terms such as "upper", "lower", "left", "right", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the accompanying drawings are only for illustrative purposes and should not be construed as a limitation to this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0033] In the description of the present utility model, unless otherwise clearly defined and limited, if terms such as "connection" are used to indicate the connection relationship between components, such terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0034] As Figure 1 and Figure 2 shown, the present utility model provides a fire-fighting display face mask, which includes a protective face mask 1. The protective face mask 1 is provided with an installation hole, and a gas nozzle 2 is installed at the installation hole. One side of the gas nozzle 2 is integrally provided with a camera module 3. The front end of the camera module 3 is provided with two installation parts 31. A high-definition camera 32 and an infrared camera 33 are respectively installed in the two installation parts 31. The camera module 3 is connected to a communication host 4 through a USB signal line. The communication host 4 can be fixed on the back frame of the gas cylinder. The outer edge of the protective face mask 1 is provided with a first positioning ring 5, and the camera module 3 and the first positioning ring 5 do not contact each other. The inner edge of the protective face mask 1 is provided with a second positioning ring 6, and the second positioning ring 6 is snap-connected with a grating diffraction waveguide screen 7. The present utility model collects image data through the camera module 3, processes and encodes it by an image processing chip. The communication host 4 uses the UVC (USB VideoClass) protocol to obtain a video stream, extracts image and temperature information by parsing the video stream, and combines and displays the two on the grating diffraction waveguide screen 7.

[0035] The present utility model adopts an integrated structural design of the gas nozzle 2 and the camera module 3. The camera module 3 does not need to be installed on the first positioning ring 5, which not only solves the installation problem of the camera module 3 but also ensures the installation position of the heat-insulating headgear.

[0036] At the same time, since the protective face mask 1 is designed with a curved surface fitting according to the human facial features, there is a certain deviation between the camera module 3 arranged on the protective face mask 1 and the wearer's line of sight. To overcome this technical problem, the installation part 31 in this embodiment is arranged at an angle with the outer surface of the camera module 3, so that the high-definition camera 32 and the infrared camera 33 are parallel to the front view direction of the wearer of the protective face mask 1, and the shooting angles of the high-definition camera 32 and the infrared camera 33 are consistent with the front view angles of the wearer of the protective face mask 1.

[0037] As Figure 3As shown, the camera module 3 specifically includes a camera housing 34. One end of the camera housing 34 close to the protective mask 1 is provided with a camera rear cover 35. A camera inner cavity is formed between the camera rear cover 35 and the camera housing 34. The mounting portion 31 is located at the front end of the camera housing 34. A camera lens 36 is further provided at the front end of the high-definition camera 32. And camera brackets 37 are installed at the rear ends of both the high-definition camera 32 and the infrared camera 33. The camera brackets 37 are connected to the camera housing 34 through fasteners to fix the high-definition camera 32 and the infrared camera 33.

[0038] Meanwhile, a camera main board 38 is also installed in the camera inner cavity. The camera main board 38 is electrically connected to a first driving board 39 and a second driving board 310. The first driving board 39 is electrically connected to the high-definition camera 32, and the second driving board 310 is electrically connected to the infrared camera 33. And a first communication interface 311 is provided below the camera housing 34. The camera main board 38 is electrically connected to the first communication interface 311.

[0039] A switch button 312, a video button 313, and a switching button 314 are also provided on the camera housing 34. The switch button 312, the video button 313, and the switching button 314 are all electrically connected to the camera main board 38. Among them, pressing and holding the switch button 312 for three seconds can control the opening and closing of the camera module 3, and short pressing it can switch the on-screen or off-screen state of the grating diffraction waveguide screen 7. Short pressing the video button 313 can sequentially switch to display thermal imaging, display visible light images, or turn off the video. Short pressing the switching button 314 can switch the data display interface. In the thermal imaging display state, pressing and holding it can switch the color palette mode of the thermal imaging. The color palette modes include false color, black hot, and white hot.

[0040] The air nozzle 2 specifically includes an air nozzle housing 21 and an air nozzle body 22. The air nozzle housing 21 and the camera housing 34 are integrally formed. And a first mounting opening is provided above the air nozzle housing 21. An installation block 23 is installed in the first mounting opening. A positioning strip 24 is installed below the installation block 23. The positioning strip 24 is made of elastic material. An air pipe connection port 25 is provided at the front end of the air nozzle body 22. Second mounting openings are provided on both sides of the air pipe connection port 25. The positioning strip 24 passes through the second mounting openings on both sides and enters the inside of the air pipe connection port 25. Due to the elasticity of the positioning strip 24, when the air pipe is inserted into the air pipe connection port 25, the positioning strip 24 can clamp the air pipe for positioning.

[0041] As Figure 4 and Figure 5As shown in the figure, the communication host 4 specifically includes a host housing 41 and a host rear cover 42. The host housing 41 is provided with a network indicator light 47 and a power indicator light 48. A host inner cavity is formed between the host housing 41 and the host rear cover 42. A communication main board 43 and a battery 44 are arranged in the host inner cavity. The battery 44 is installed on a battery bracket 45 and is electrically connected to the communication main board 43. The battery bracket 45 is connected to the host housing 41 through a fastener. A second communication interface 46 is further provided on the outer surface of the host housing 41. The communication main board 43 is electrically connected to the second communication interface 46. The second communication interface 46 is connected to the first communication interface 311 through a USB signal line. The USB signal line can effectively reduce the visual delay of the communication host 4, and the visual delay is less than 100 ms, and the video picture responds more quickly without any lag or trailing feeling.

[0042] To facilitate the position adjustment of the grating diffraction waveguide screen 7, a height adjustment device 8 is provided on the upper part of the grating diffraction waveguide screen 7 of this embodiment, and the height adjustment device 8 is installed on the second positioning ring 6.

[0043] As Figure 6 and Figure 7 As shown in the figure, the height adjustment device 8 specifically includes a first adjustment plate 81 and a second adjustment plate 82. An optical machine 9 is arranged in the first adjustment plate 81. The upper part of the grating diffraction waveguide screen 7 is inserted into the second adjustment plate 82. The optical machine 9 is electrically connected to the grating diffraction waveguide screen 7 and the communication host 4. An adjustment groove 83 is opened on one side of the first adjustment plate 81 close to the second adjustment plate 82. Adjustment blocks 84 are provided at corresponding positions of the adjustment groove 83 and the second adjustment plate 82. An adjustment column 85 is provided on the inner side of the upper part of the second positioning ring 6. First positioning grooves 86 are opened on both sides of the adjustment column 85. The adjustment column 85 is inserted into the adjustment groove 83, and the adjustment block 84 is slidably connected to the first positioning groove 86. The wearer can drive the adjustment block 84 to slide up and down in the first positioning groove 86 by pulling the first adjustment plate 81 and the second adjustment plate 82, so as to adjust the height of the grating diffraction waveguide screen 7, which is convenient for the wearer to adjust the position of the grating diffraction waveguide screen 7. At the same time, one end of the first adjustment plate 81 is threadedly connected with an adjustment handle 87, and one end of the adjustment handle 87 can be inserted into the adjustment groove 83 and abutted against the adjustment column 85. When the wearer adjusts the position of the grating diffraction waveguide screen 7, the position of the adjustment column 85 can be fixed by rotating the adjustment handle 87.

[0044] To prevent the grating diffraction waveguide screen 7 from shifting in position during the adjustment process, a second positioning groove 88 is opened at one end of the first adjustment plate 81 away from the adjustment handle 87. A positioning plate 89 is further provided on the inner side of the upper part of the second positioning ring 6. The positioning plate 89 is in clearance fit with the second positioning groove 88, and the grating diffraction waveguide screen 7 will move up and down along the specified direction under the limiting action of the positioning plate 89.

[0045] It should be noted that the above specific embodiments are only the preferred embodiments of the present utility model and the applied technical principles. Those skilled in the art should understand that various modifications, equivalent replacements, changes, etc. can be made to the present utility model. However, as long as these transformations do not deviate from the spirit of the present utility model, they should be within the protection scope of the present utility model. In addition, some terms used in the specification and claims of this application are not restrictive, but are only for the convenience of description.

Claims

1. A fire display mask, characterized in that, It includes a protective face mask (1), the protective face mask (1) is provided with a mounting hole, a nozzle (2) is installed at the mounting hole, a camera module (3) is integrally provided on one side of the nozzle (2), two mounting parts (31) are provided at the front end of the camera module (3), a high-definition camera (32) and an infrared camera (33) are respectively installed in the two mounting parts (31), the mounting part (31) is arranged at an angle with the outer surface of the camera module (3), so that the high-definition camera (32) and the infrared camera (33) are parallel to the front view direction of the protective face mask (1), the camera module (3) is connected to a communication host (4) through a USB signal line, a first positioning ring (5) is arranged at the outer edge of the protective face mask (1), a second positioning ring (6) is arranged at the inner edge of the protective face mask (1), and a grating diffraction waveguide screen (7) is clamped by the second positioning ring (6).

2. The fire display face mask according to claim 1, wherein The camera module (3) includes a camera housing (34), a camera rear cover (35) is installed at one end of the camera housing (34) close to the protective face mask (1), a camera inner cavity is formed between the camera rear cover (35) and the camera housing (34), the mounting part (31) is located at the front end of the camera housing (34), a camera lens (36) is further provided at the front end of the high-definition camera (32), and camera brackets (37) are installed at the rear ends of both the high-definition camera (32) and the infrared camera (33), and the camera brackets (37) are connected to the camera housing (34) through fasteners.

3. The fire display face mask according to claim 2, wherein, A camera main board (38) is installed in the camera inner cavity, the camera main board (38) is electrically connected to a first driving board (39) and a second driving board (310), the first driving board (39) is electrically connected to the high-definition camera (32), the second driving board (310) is electrically connected to the infrared camera (33), and a first communication interface (311) is arranged below the camera housing (34), and the camera main board (38) is electrically connected to the first communication interface (311).

4. The fire display face mask according to claim 3, characterized in that, A switch button (312), a video button (313) and a switching button (314) are further arranged on the camera housing (34), and the switch button (312), the video button (313) and the switching button (314) are all electrically connected to the camera main board (38).

5. The fire display face mask according to claim 2, characterized in that, The nozzle (2) includes a nozzle housing (21) and a nozzle body (22). The nozzle housing (21) is integrally formed with the camera housing (34). A first mounting opening is provided above the nozzle housing (21), and a mounting block (23) is mounted in the first mounting opening. A positioning strip (24) is mounted below the mounting block (23). The positioning strip (24) is made of an elastic material. A trachea connection port (25) is provided at the front end of the nozzle body (22). Second mounting openings are provided on both sides of the trachea connection port (25). The positioning strip (24) passes through the second mounting openings on both sides and enters the interior of the trachea connection port (25) to clamp the trachea.

6. The fire display face mask according to claim 3, characterized in that, The communication host (4) includes a host housing (41) and a host rear cover (42). A host inner cavity is formed between the host housing (41) and the host rear cover (42). A communication main board (43) and a battery (44) are arranged in the host inner cavity. The battery (44) is mounted on a battery bracket (45) and electrically connected to the communication main board (43). The battery bracket (45) is connected to the host housing (41) through a fastener. A second communication interface (46) is further provided on the outer surface of the host housing (41). The communication main board (43) is electrically connected to the second communication interface (46). The second communication interface (46) is connected to the first communication interface (311) through a USB signal line.

7. The fire display face mask according to claim 6, wherein, The host housing (41) is further provided with a network indicator light (47) and a power indicator light (48).

8. The fire display face mask according to claim 1, characterized in that, A height adjustment device (8) is provided at the upper part of the grating diffraction waveguide screen (7). The height adjustment device (8) is mounted on the second positioning ring (6).

9. The fire display face mask according to claim 8, characterized in that The height adjustment device (8) includes a first adjustment plate (81) and a second adjustment plate (82). An optical machine (9) is arranged in the first adjustment plate (81). The upper part of the grating diffraction waveguide screen (7) is inserted into the second adjustment plate (82). The optical machine (9) is electrically connected to the grating diffraction waveguide screen (7) and the communication host (4). An adjustment groove (83) is provided on one side of the first adjustment plate (81) close to the second adjustment plate (82). Adjustment blocks (84) are provided at corresponding positions of the adjustment groove (83) and the second adjustment plate (82). An adjustment column (85) is provided on the inner side of the upper part of the second positioning ring (6). First positioning grooves (86) are provided on both sides of the adjustment column (85). The adjustment column (85) is inserted into the adjustment groove (83), and the adjustment block (84) is slidably connected to the first positioning groove (86) to adjust the height of the grating diffraction waveguide screen (7). One end of the first adjustment plate (81) is threadedly connected with an adjustment handle (87). One end of the adjustment handle (87) is located in the adjustment groove (83) and abuts against the adjustment column (85).

10. The fire display face mask according to claim 9, wherein, The end of the first adjusting plate (81) away from the adjusting handle (87) is provided with a second positioning groove (88). A positioning plate (89) is further arranged on the inner side of the upper part of the second positioning ring (6). The positioning plate (89) is in clearance fit with the second positioning groove (88).

Images