Fire escape mask inner embedding structure

Abstract

The utility model discloses a kind of fire escape mask inlay structure, including annular water bag and unlocking card, the annular water bag inside surface is connected with flow guide pipe, another end of the flow guide pipe is connected with switch structure, the surface of the switch structure is connected with indicating structure and is installed.The utility model discloses a kind of fire escape mask inlay structure, the fire escape mask inlay structure can be inlayed into the mask with preset inlay groove, then by pressing switch valve to release the water in annular water bag and wet mask, to increase the filtering and antitoxic effect of mask, and simultaneously LED lamp pearl is lighted, so that in rescue, firemen can timely check the position of escapee, improve rescue efficiency, the mask inlay structure, simple structure, low in production cost, can be used with ordinary mask production material, can be widely applied.

Description

Technical Field

[0001] This utility model relates to the field of fire escape structure technology, and in particular to an embedded structure for a fire escape mask. Background Technology

[0002] Traditional ordinary masks, such as regular cotton masks or disposable medical masks, are mainly used to block larger dust particles or droplets. Their filtration efficiency and protective performance are limited, and they cannot effectively filter toxic and harmful gases and fine smoke particles generated during fires, making them insufficient for the protection needs during fire escape. Although some professional fire-fighting gas masks exist on the market, these masks are usually large and complex in structure, making them relatively inconvenient to wear and operate. For some people with limited mobility (such as the elderly, children, and disabled persons), wearing and using them presents certain difficulties. Furthermore, the high cost of some fire-fighting gas masks makes it difficult to widely distribute them to ordinary households and public places. In addition, traditional masks lack a location indicator function for those in distress, preventing firefighters from promptly identifying those in need of rescue in dense smoke. Therefore, we propose an embedded structure for a fire escape mask. Utility Model Content

[0003] The main purpose of this utility model is to provide an embedded structure for a fire escape mask, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] An embedded structure for a fire escape mask includes an annular water bladder and an unlocking card. A guide tube is connected to the inner surface of the annular water bladder, and a switch structure is connected to the other end of the guide tube. An indicator structure is connected and installed on the surface of the switch structure.

[0006] Preferably, the switch structure includes a valve body shell, a switch valve, a rubber valve plug, an outlet hole, a limiting retaining ring, a switch pressing sleeve, and a spring. The switch valve is movably embedded in the upper port of the valve body shell. The rubber valve plug is fixedly installed on the lower surface of the switch valve inside the valve body shell. The outlet hole is opened on the arc surface of the valve body shell. The limiting retaining ring is fixedly installed on the outer arc surface of the valve body shell near the lower end. The switch pressing sleeve is slidably sleeved on the lower end of the valve body shell. Springs are fixedly installed at four equal positions on the inner arc surface of the switch pressing sleeve.

[0007] Preferably, five outlet holes are provided and are evenly distributed on the outer arc surface of the valve body shell, and the connection between the guide tube and the inside of the valve body shell is sealed by a rubber valve plug.

[0008] Preferably, the unlocking card is mounted on the cylindrical rod in the middle of the switch valve, and a pull ring is connected to the middle of the outer arc surface of the unlocking card by a rope.

[0009] Preferably, the indicating structure includes a button cell battery, a carbon film resistor, an LED bead, an arc-shaped spring contact, a movable contact, and a battery box. The movable contact is fixedly installed at the middle position of the lower surface of the valve body housing, and the arc-shaped spring contact is fixedly installed at the middle position of the lower surface inside the battery box. The carbon film resistor, LED bead, and button cell battery are connected in series by a wire. One end of the wire is electrically connected to the arc-shaped spring contact, and the other end of the wire is electrically connected to the movable contact. The button cell battery is sealed and fixedly installed in the battery box.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] In this invention, the embedded structure of the fire escape mask can be embedded into a mask with a pre-set embedded groove. Then, by pressing the switch valve, water in the annular water bladder is released to wet the mask, thereby increasing the mask's filtration and anti-toxic effect. At the same time, the LED beads are lit, enabling firefighters to quickly locate the escapee during rescue operations, thus improving rescue efficiency. This embedded structure is simple in structure, has low production cost, can be used with ordinary mask production materials, and can be widely applied. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the embedded structure of a fire escape mask according to this utility model;

[0013] Figure 2 This is a diagram illustrating the unlocking mechanism of the embedded structure in a fire escape mask according to this utility model.

[0014] Figure 3 This is a cross-sectional view of the switch structure embedded in a fire escape mask according to this utility model;

[0015] Figure 4 This is a circuit diagram of the embedded structure of a fire escape mask according to this utility model.

[0016] In the diagram: 1. Annular water bladder; 2. Guide tube; 3. Switch structure; 31. Valve body shell; 32. Switch valve; 33. Rubber valve plug; 34. Outlet hole; 35. Limiting ring; 36. Switch pressing sleeve; 37. Spring; 4. Unlocking card; 41. Pull ring; 5. Indicator structure; 51. Button battery; 52. Carbon film resistor; 53. LED bead; 54. Arc-shaped spring contact; 55. Moving contact; 56. Battery box. Detailed Implementation

[0017] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0018] like Figure 1-4 As shown, a fire escape mask has an embedded structure including an annular water bladder 1 and an unlocking card 4. A guide tube 2 is connected to the inner surface of the annular water bladder 1, and a switch structure 3 is connected to the other end of the guide tube 2. An indicator structure 5 is connected and installed on the surface of the switch structure 3.

[0019] The switch structure 3 includes a valve body housing 31, a switch valve 32, a rubber valve plug 33, an outlet hole 34, a limiting retaining ring 35, a switch pressing sleeve 36, and a spring 37. The switch valve 32 is movably embedded in the upper port of the valve body housing 31. The rubber valve plug 33 is fixedly installed on the lower surface of the switch valve 32 inside the valve body housing 31. The outlet hole 34 is opened on the arc surface of the valve body housing 31. The limiting retaining ring 35 is fixedly installed on the outer arc surface of the valve body housing 31 near the lower end. The lower end of the valve body housing 31 has a sliding sleeve. A switch pressing sleeve 36 is installed, and spring pieces 37 are fixedly installed at four equal positions on the inner arc surface of the switch pressing sleeve 36. Five outlet holes 34 are evenly distributed on the outer arc surface of the valve body shell 31. The connection between the guide tube 2 and the inside of the valve body shell 31 is sealed by a rubber valve plug 33. The limiting ring 35 is a trapezoidal ring. The limiting ring 35 deforms the spring pieces 37 and moves them below the spring pieces 37. After the spring pieces 37 return to their original position, there is resistance on their surface that prevents the limiting ring 35 from sliding upwards. This allows the valve body to open. The movable contact 55 presses against the surface of the arc-shaped spring contact 54. To release the switch, the switch pressing sleeve 36 can be pulled downwards to slide the limit ring 35 back to its original position. The unlocking card 4 is secured to the cylindrical rod in the middle of the switch valve 32. A pull ring 41 is connected to the middle of the outer arc surface of the unlocking card 4 by a rope. The unlocking card 4 is designed to prevent accidental opening of the port at the connection between the guide tube 2 and the valve body shell 31. The pull ring 41 is used to facilitate applying force to the unlocking card 4. The indicating structure 5 includes a button battery 51 and a carbon film resistor 5. 2. LED lamp bead 53, arc-shaped spring contact 54, movable contact 55 and battery box 56. The movable contact 55 is fixedly installed in the middle position of the lower surface of the valve body shell 31. The arc-shaped spring contact 54 is fixedly installed in the middle position of the lower surface inside the battery box 56. The carbon film resistor 52, LED lamp bead 53 and button battery 51 are connected in series by wires. One end of the wire is electrically connected to the arc-shaped spring contact 54 and the other end of the wire is electrically connected to the movable contact 55. The button battery 51 is sealed and fixedly installed in the battery box 56.

[0020] It should be noted that this utility model is an embedded structure for a fire escape mask. This structure can be embedded into a mask with a pre-set insertion opening. In use, first remove the unlocking card 4 on the switch valve 32, then press firmly on the end of the switch valve 32 and the bottom of the switch pressing sleeve 36. After pressing, the rubber valve plug 33 moves downward, allowing the guide tube 2 to connect with the inside of the valve body shell 31. Water from the annular water bladder 1 can then quickly enter the valve body shell 31 through the guide tube 2 and be sprayed onto the mask through the five outlet holes 34, wetting the mask and thus providing filtration and protection against toxic substances. Simultaneously, the switch pressing sleeve 36 moves upward, causing the limiting ring 35 to squeeze the spring piece 37 and fix it below the spring piece 37. At this time, the arc-shaped spring contact point 54 presses tightly against the surface of the moving contact point 55, thus connecting the power cord of the LED bead 53 and illuminating it. This allows firefighters to quickly locate those in distress through the light.

[0021] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An embedded structure for a fire escape mask, characterized in that: It includes an annular water bladder (1) and an unlocking card (4). The inner surface of the annular water bladder (1) is connected to a guide tube (2), and the other end of the guide tube (2) is connected to a switch structure (3). An indicator structure (5) is connected and installed on the surface of the switch structure (3).

2. The embedded structure of a fire escape mask according to claim 1, characterized in that: The switch structure (3) includes a valve body shell (31), a switch valve (32), a rubber valve plug (33), an outlet hole (34), a limiting ring (35), a switch pressing sleeve (36), and a spring (37). The switch valve (32) is movably embedded in the upper port of the valve body shell (31). The rubber valve plug (33) is fixedly installed on the lower surface of the switch valve (32) inside the valve body shell (31). The outlet hole (34) is opened on the arc surface of the valve body shell (31). The limiting ring (35) is fixedly installed on the outer arc surface of the valve body shell (31) near the lower end. The switch pressing sleeve (36) is slidably installed on the lower end of the valve body shell (31). The spring (37) is fixedly installed at each of the four equal parts of the inner arc surface of the switch pressing sleeve (36).

3. The embedded structure of a fire escape mask according to claim 2, characterized in that: The outlet hole (34) has five holes, which are evenly distributed on the outer arc surface of the valve body shell (31). The connection between the guide pipe (2) and the inside of the valve body shell (31) is sealed by a rubber valve plug (33).

4. The embedded structure of a fire escape mask according to claim 3, characterized in that: The unlocking card (4) is mounted on the cylindrical rod in the middle of the switch valve (32), and a pull ring (41) is connected to the middle of the outer arc surface of the unlocking card (4) by a rope.

5. The embedded structure of a fire escape mask according to claim 4, characterized in that: The indicator structure (5) includes a button cell battery (51), a carbon film resistor (52), an LED bead (53), an arc-shaped spring contact (54), a movable contact (55), and a battery box (56). The movable contact (55) is fixedly installed in the middle of the lower surface of the valve body housing (31). The arc-shaped spring contact (54) is fixedly installed in the middle of the lower surface inside the battery box (56). The carbon film resistor (52), the LED bead (53), and the button cell battery (51) are connected in series by a wire. One end of the wire is electrically connected to the arc-shaped spring contact (54), and the other end of the wire is electrically connected to the movable contact (55). The button cell battery (51) is sealed and fixedly installed in the battery box (56).

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