HUD transmitting end mounting structure on novel long-tube air respirator

Abstract

The utility model discloses a novel HUD (head up display) transmitting end mounting structure on a long-tube air respirator, relates to the technical field of high-pressure long-tube respirators, and aims to solve the technical problems that a current respirator mask is not provided with a pressure display device, the air pressure condition of a 30MPa movable air supply source cannot be directly known, and hidden dangers exist in use, and the novel HUD transmitting end mounting structure on the long-tube air respirator comprises a long-tube air respirator body, the utility model provides an installation mode that the HUD sending end is arranged at the movable air supply source end, and the top of the pressure head-up display device and the top of the high-pressure multi-way cube are respectively provided with a connecting hole. The high-pressure multi-way or decompression device body on the long-tube air respirator body can be in butt joint with the pressure head-up display device through the arrangement of the connecting joint, and the long-tube air respirator has the advantages that the air pressure value display function is added, and the air pressure condition in an air cylinder can be visually known.

Description

Technical Field

[0001] The utility model relates to the technical field of high-pressure long-tube respirators, and more specifically to a HUD transmitting end mounting structure on a novel long-tube air respirator. Background Art

[0002] Long-tube air respirators are mainly used to provide respiratory protection in confined or partially enclosed spaces that may contain toxic gases, harmful gases, steam or oxygen-deficient environments. Long-tube air respirators generally consist of a full-face mask, a belt, a long tube, and a blower.

[0003] Because there is no pressure display device on the existing long-tube air respirator, the original user cannot know the air pressure value at the air source end, resulting in the user being unable to judge the air pressure value, which poses a safety hazard during use. In view of this, we propose a new HUD transmitter installation structure on a long-tube air respirator. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art, meet the actual needs, and provide a new HUD transmitter installation structure on a long-tube air respirator to solve the technical problem that there is no pressure display device on the current respirator mask, the air pressure of the 30MPa mobile air supply source cannot be directly understood, and there are hidden dangers in use.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a new HUD transmitter installation structure on a long-tube air respirator, comprising a long-tube air respirator body, a HUD receiver pressure display device is installed at the mask end of the long-tube air respirator;

[0006] The HUD transmitting end body includes a pressure head-up display device and a high-pressure multi-way or pressure reducing device body. The utility model provides an installation method of the HUD transmitting end at a mobile air supply source end. The tops of the pressure head-up display device and the high-pressure multi-way cube are both provided with connecting holes, and the connecting holes on the high-pressure multi-way or pressure reducing device body are provided with a plurality of connecting holes. A connecting joint is installed between the pressure head-up display device and the connecting holes on the high-pressure multi-way or pressure reducing device body.

[0007] The HUD transmitting end body includes a pressure head-up display device and a high-pressure multi-way or pressure reducing device body. The tops of the pressure head-up display device and the high-pressure multi-way or pressure reducing device body are both provided with connection holes, so that it is convenient to intuitively understand the internal air pressure during use, and an alarm can be issued when the air pressure is low, thereby improving the safety of the overall structure.

[0008] The utility model can connect the high-pressure multi-way or pressure reducing device body on the long-tube air respirator body with the pressure head-up display device through the setting of the connecting joint. The flexibility of assembly can be improved under the action of two connecting joints of different shapes. The connecting joint and the pressure head-up display device can be combined to facilitate the rotation of the pressure head-up display device, so that the internal battery can be disassembled and replaced after the rotation adjustment position, which is convenient for use. Through the connection of the two, the air pressure value in the tank body on the long-tube air respirator body can be displayed on the pressure head-up display device under the monitoring of the high-pressure multi-way or pressure reducing device body, so that the internal air pressure situation can be intuitively understood during use, and an alarm can be issued when the air pressure is low, thereby improving the safety of the overall structure.

[0009] Preferably, the connecting joint includes two connecting elbows, a center shaft is inserted between the two connecting elbows, a connecting groove is opened in the center shaft along the axial position, annular grooves are opened at both ends of the outer edge surface of the center shaft in the connecting elbows, and circular holes connecting the corresponding annular grooves and the connecting grooves are opened at both ends of the center shaft.

[0010] Preferably, a transition groove connected to the circular hole is opened inside the connecting elbow, and a connecting sleeve combined with two connecting elbows is sleeved outside the central axis. Second sealing rings and retaining springs are provided at the joints between the two ends of the central axis and the corresponding connecting elbows.

[0011] Preferably, the connection joint comprises a connection elbow, the interface of the connection elbow is provided with an L-shaped joint, a transfer groove is provided inside the connection elbow, and an annular groove is provided at the outer edge side end of the L-shaped joint inside the connection elbow. An L-shaped groove is provided inside the L-shaped joint, a circular hole connecting the corresponding annular groove and the L-shaped groove is provided at the inner side end of the L-shaped joint, and a second sealing ring and a retaining spring are provided at the junction of the connection elbow and the L-shaped joint.

[0012] Preferably, a pipe pin combined with a connecting joint is installed inside the body of the high-pressure multi-way or pressure reducing device, and the pipe pin is U-shaped.

[0013] Preferably, a high-pressure pressure reducing device rear cover is installed on one side of the pressure head-up display device close to the high-pressure multi-way or pressure reducing device body, and one end of the high-pressure pressure reducing device rear cover is inserted into the interior of the pressure head-up display device and combined with the card slot of the connecting elbow 701.

[0014] Preferably, a rear cover fixing screw is fixedly connected between the rear cover of the high-pressure pressure reducing device and the pressure head-up display device, and a cross groove is provided at the end of the rear cover fixing screw.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The utility model can connect the high-pressure multi-way or pressure reducing device body on the long-tube air respirator body with the pressure head-up display device through the setting of the connecting joint. The flexibility of assembly can be improved under the action of two connecting joints of different shapes, and the connecting joint and the pressure head-up display device can be combined to facilitate the rotation of the pressure head-up display device, so as to facilitate the disassembly and replacement of the internal battery after the rotation adjustment position, which is convenient for use. Through the connection of the two, the air pressure value in the tank body on the long-tube air respirator body can be displayed on the pressure head-up display device under the monitoring of the high-pressure multi-way or pressure reducing device body, so as to facilitate the intuitive understanding of the internal air pressure during use, and an alarm can be issued when the air pressure is low, thereby improving the safety of the overall structure.

[0017] 2. The utility model can also achieve the effect of quick disassembly and assembly through the cooperation of the connecting elbow, the pipe pin and the rear cover plate of the high-pressure pressure reducing device. The assembly is convenient, and the setting of the first sealing ring can maintain the sealing of the connection. The clamping limit mode fixes the position tightly and is not easy to separate, further maintaining the accuracy of the air pressure monitoring value. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of two types of joint replacement assembly structures of the utility model;

[0019] Figure 2 This is a schematic diagram of the disassembly of the connecting joint in the first embodiment of the utility model;

[0020] Figure 3 It is a cross-sectional view of the connecting joint in the first embodiment of the utility model;

[0021] Figure 4 This is a schematic diagram of the disassembly of the connecting joint in the second embodiment of the present utility model;

[0022] Figure 5 It is a cross-sectional view of the connecting joint in the second embodiment of the present utility model;

[0023] Figure 6 This is a schematic diagram of the assembly of the utility model in the first embodiment;

[0024] Figure 7 This is a schematic diagram of the assembly of the utility model in the second embodiment;

[0025] Figure 8 This is a schematic diagram of the assembly of the utility model with a respirator in the first embodiment;

[0026] Fig. 9 For this utility model Figure 8 A magnified schematic diagram of the structure in the middle.

[0027] Explanation of the numbers in the figure: 1. Pressure head-up display device; 2. High-pressure multi-way or pressure reducing device body; 3. First sealing ring; 4. Pipe pin; 5. Rear cover plate of high-pressure pressure reducing device; 6. Rear cover plate fixing screw; 7. Connecting joint; 701. Connecting elbow; 702. Center axis; 703. Connecting groove; 704. Annular groove; 705. Round hole; 706. Adapter groove; 707. Connecting sleeve; 708. Second sealing ring; 709. Retaining spring; 710. L-shaped joint; 711. L-shaped groove. DETAILED DESCRIPTION Example

[0028] like Figure 1 , 2 As shown in , 3, 6, 8 and 9, the utility model relates to a new type of HUD transmitting end mounting structure on a long tube air respirator, comprising a long tube air respirator body, on which a HUD transmitting end body is mounted.

[0029] The HUD transmitting end body includes a pressure head-up display device 1 and a high-pressure multi-way or pressure reducing device body 2. The tops of the pressure head-up display device 1 and the high-pressure multi-way or pressure reducing device body 2 are both provided with connecting holes, and the high-pressure multi-way or pressure reducing device body 2 is provided with a plurality of connecting holes. A connecting joint 7 is installed between the connecting holes on the pressure head-up display device 1 and the high-pressure multi-way or pressure reducing device body 2; the pressure head-up display device 1 is fixed to the high-pressure multi-way or pressure reducing device body 2 by setting the connecting joint 7, so that the air pressure value monitored by the high-pressure multi-way or pressure reducing device body 2 can be displayed through the pressure head-up display device 1, and an alarm can be issued when the air pressure in the gas cylinder is low, so as to achieve the function of prompting, thereby enhancing the safety of use.

[0030] In the embodiment of the utility model, the connecting joint 7 includes two connecting elbows 701, a central shaft 702 is inserted between the two connecting elbows 701, a connecting groove 703 is provided in the central shaft 702 along the axial position, annular grooves 704 are provided at both ends of the outer edge surface of the central shaft 702 in the connecting elbow 701, and circular holes 705 are provided at both ends of the central shaft 702 to connect the corresponding annular grooves 704 and the connecting grooves 703, a transition groove 706 connected to the circular hole 705 is provided inside the connecting elbow 701, and a sleeve is provided on the outside of the central shaft 702 to connect to the circular hole 705. The connecting sleeve 707 that combines the two connecting elbows 701, and the connecting portion of the connecting elbow 701 and the central axis 702 are provided with a second sealing ring 708 and a retaining ring 709; the docking of the connecting elbow 701 and the central axis 702 can make the adapter groove 706 connected with the connecting groove 703 through the annular groove 704 and the circular hole 705, so as to achieve the effect of through assembly, and the cooperation of the second sealing ring 708 and the retaining ring 709 can fix the tightness of the connection between the connecting elbow 701 and the central axis 702, and at the same time, the clamping method facilitates the rotation of the connecting elbow 701 along the central axis 702.

[0031] In an embodiment of the utility model, a pipe pin 4 combined with a connecting joint 7 is installed inside the main body 2 of the high-pressure multi-way or pressure reducing device; the U-shaped structural design has the elasticity of opening and contraction, and the design of rounded chamfers can improve the toughness of extrusion and folding, thereby facilitating the limiting of the plug-in position of the connecting joint 7.

[0032] In an embodiment of the utility model, a high-pressure pressure reducing device rear cover plate 5 is installed on one side of the pressure head-up display device 1 close to the high-pressure multi-way or pressure reducing device body 2, and one end of the high-pressure pressure reducing device rear cover plate 5 is inserted into the interior of the pressure head-up display device 1 and combined with the card slot of the connecting elbow 701; one end of the high-pressure pressure reducing device rear cover plate 5 is inserted into the high-pressure multi-way or pressure reducing device body 2 and combined with the connecting elbow 701 to achieve a locking effect, which is convenient for fixing the position of the connection elbow 701 and the high-pressure multi-way or pressure reducing device body 2.

[0033] In an embodiment of the utility model, a rear cover fixing screw 6 is fixedly connected between the rear cover plate 5 of the high-pressure pressure reducing device and the pressure head-up display device 1, and a cross groove is provided at the end of the rear cover plate fixing screw 6; the rear cover plate fixing screw 6 with a cross groove occupies a small space and is easy to disassemble and assemble. Example

[0034] like Figure 1 , 4 As shown in , 5, 7, 8 and 9, the utility model relates to a new type of HUD transmitting end mounting structure on a long tube air respirator, comprising a long tube air respirator body, on which a HUD transmitting end body is mounted.

[0035] The HUD transmitting end body includes a pressure head-up display device 1 and a high-pressure multi-way or pressure reducing device body 2. The tops of the pressure head-up display device 1 and the high-pressure multi-way or pressure reducing device body 2 are both provided with connecting holes. A connecting joint 7 is installed between the connecting holes on the pressure head-up display device 1 and the high-pressure multi-way or pressure reducing device body 2. The pressure head-up display device 1 is fixed to the high-pressure multi-way or pressure reducing device body 2 by setting the connecting joint 7, and the connecting joint 7 is inserted into the connecting holes of the two to a fixed position. At the same time, the first sealing ring 3 provided in the connecting hole can improve the sealing of the connection, so that the air pressure value monitored by the high-pressure multi-way or pressure reducing device body 2 can be displayed through the pressure head-up display device 1, and an alarm can be issued when the air pressure in the gas cylinder is low, so as to achieve the function of prompting, thereby enhancing the safety of use.

[0036] In an embodiment of the utility model, the connecting joint 7 includes a connecting elbow 701, the interface of the connecting elbow 701 is provided with an L-shaped joint 710, a transfer groove 706 is provided inside the connecting elbow 701, an annular groove 704 is provided at the outer edge side end of the L-shaped joint 710 in the connecting elbow 701, an L-shaped groove 711 is provided inside the L-shaped joint 710, and a circular hole 705 connecting the corresponding annular groove 704 and the L-shaped groove 711 is provided at the inner side end of the L-shaped joint 710, and a second sealing ring 708 and a retaining spring 709 are provided at the junction of the connecting elbow 701 and the L-shaped joint 710; another connecting joint 7 as a whole can be formed by combining the two, which is also connected to the pressure head-up display device 1 through the connecting elbow 701, so that the pressure head-up display device 1 can be easily rotated and the battery replacement operation is convenient.

[0037] In an embodiment of the utility model, a pipe pin 4 combined with a connecting joint 7 is installed inside the main body 2 of the high-pressure multi-way or pressure reducing device, and the pipe pin 4 is U-shaped; the U-shaped structural design has the elasticity of opening and contraction, and the design of rounded chamfers can improve the toughness of extrusion and folding, thereby facilitating the limiting of the plug-in position of the connecting elbow 701.

[0038] In an embodiment of the utility model, a high-pressure pressure reducing device rear cover plate 5 is installed on one side of the pressure head-up display device 1 close to the high-pressure multi-way or pressure reducing device body 2, and one end of the high-pressure pressure reducing device rear cover plate 5 is inserted into the interior of the pressure head-up display device 1 and combined with the card slot of the connecting elbow 701; one end of the high-pressure pressure reducing device rear cover plate 5 is inserted into the high-pressure multi-way or pressure reducing device body 2 and combined with the connecting elbow 701 to achieve a locking effect, which is convenient for fixing the position of the connection elbow 701 and the high-pressure multi-way or pressure reducing device body 2.

[0039] In an embodiment of the utility model, a rear cover fixing screw 6 is fixedly connected between the rear cover plate 5 of the high-pressure pressure reducing device and the pressure head-up display device 1, and a cross groove is provided at the end of the rear cover plate fixing screw 6; the rear cover plate fixing screw 6 with a cross groove occupies a small space and is easy to disassemble and assemble.

[0040] Working principle: This embodiment provides a HUD transmitter installation structure on a new type of long-tube air respirator. When in use, first insert the connecting elbow 701 at one end of the connecting joint 7 into the connecting hole of the high-pressure multi-way or pressure reducing device body 2, or insert the side end with the L-shaped joint 710 into the connecting hole, and then insert the connecting elbow 701 at the other end into the connecting hole of the pressure head-up display device 1 to complete the combination of the two. The pressure head-up display device 1 can connect the gas in the gas cylinder under the action of the connecting elbow 701, so that the air pressure situation can be understood. At the same time, the plug-in installation method of the connecting elbow 701 can be easily rotated to adjust the angle, so that the pressure head-up display device 1 can be adjusted after installation. The position of the joint is convenient for replacing the battery. During the assembly and pressing process, the installation position is fixed by connecting the joint 7, the pipe pin 4 and the rear cover plate 5 of the high-pressure pressure reducing device. After the assembly is completed, the high-pressure multi-way or pressure reducing device body 2 can be fixed on the long-tube air respirator body. In this way, a pressure head-up display device 1 is added to the front end of the breathing mask, so that the firefighter can use the pressure head-up display device 1 to display the air pressure value in the gas cylinder when using it. The pressure head-up display device 1 is divided into three display reminders, green represents sufficient air pressure, yellow represents medium air pressure, and red represents low air pressure. It is used to display the air pressure in the gas cylinder and perform active or passive alarms when the firefighter is unwell or unconscious in danger, thereby improving the safety of the overall structure.

[0041] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A new HUD transmitter installation structure on a long-tube air respirator, characterized in that: It includes a long tube air respirator body, on which a HUD transmitting end body is installed; The HUD transmitting end body comprises a pressure head-up display device (1) and a high-pressure multi-way or pressure reducing device body (2), the tops of the pressure head-up display device (1) and the high-pressure multi-way or pressure reducing device body (2) are both provided with connection holes, and a plurality of connection holes are provided on the high-pressure multi-way or pressure reducing device body (2), and a connection joint (7) is installed between the connection holes on the pressure head-up display device (1) and the high-pressure multi-way or pressure reducing device body (2).

2. The HUD transmitter installation structure on the new long tube air respirator according to claim 1 is characterized in that: The connecting joint (7) comprises two connecting elbows (701), a central shaft (702) is inserted between the two connecting elbows (701), a connecting groove (703) is provided in the central shaft (702) along the axial direction, annular grooves (704) are provided at both ends of the outer edge surface of the central shaft (702) in the connecting elbows (701), and circular holes (705) are provided at both ends of the central shaft (702) for connecting the corresponding annular grooves (704) and the connecting grooves (703).

3. The HUD transmitter installation structure on the new long tube air respirator according to claim 2 is characterized in that: The connecting elbow (701) is provided with a transfer groove (706) in communication with the circular hole (705) inside, the central shaft (702) is provided with a connecting sleeve (707) connected to the two connecting elbows (701) outside, and the two ends of the central shaft (702) are provided with a second sealing ring (708) and a retaining ring (709) at the joints between the corresponding connecting elbows (701).

4. The HUD transmitter installation structure on the new long tube air respirator according to claim 1 is characterized in that: The connecting joint (7) comprises a connecting elbow (701), an interface of the connecting elbow (701) is provided with an L-shaped joint (710), a transfer groove (706) is provided inside the connecting elbow (701), and an annular groove (704) is provided at the side end of the outer edge surface of the L-shaped joint (710) inside the connecting elbow (701).

5. The HUD transmitter installation structure on the new long tube air respirator according to claim 4 is characterized in that: An L-shaped groove (711) is provided inside the L-shaped joint (710), a circular hole (705) connected to the corresponding annular groove (704) and the L-shaped groove (711) is provided at the inner end of the L-shaped joint (710), and a second sealing ring (708) and a retaining ring (709) are provided at the junction of the connecting elbow (701) and the L-shaped joint (710).

6. The HUD transmitter installation structure on the new long tube air respirator according to claim 1 is characterized in that: A pipe pin (4) coupled to a connecting joint (7) is installed inside the high-pressure multi-way or pressure reducing device body (2); the pipe pin (4) is in a U shape.

7. The HUD transmitter installation structure on the new long tube air respirator according to claim 1 is characterized in that: A high-pressure pressure reducing device rear cover plate (5) is installed on one side of the pressure head-up display device (1) close to the high-pressure multi-way or pressure reducing device body (2), and one end of the high-pressure pressure reducing device rear cover plate (5) is inserted into the interior of the pressure head-up display device (1) and engaged with a card slot of a connecting joint (7).

8. The HUD transmitter installation structure on the new long tube air respirator according to claim 7 is characterized in that: A rear cover fixing screw (6) is fixedly connected between the high-pressure pressure reducing device rear cover (5) and the pressure head-up display device (1), and a cross groove is provided at the end of the rear cover fixing screw (6).

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