Novel fireproof mask
By using a replaceable filter tube structure and sealing activity structure in the fireproof mask, the use time for use time caused by the fixed form of the existing fireproof mask filter element has achieved longer use time and higher protection effects.
Patent Information
- Application Number
- CN202421089925.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-20
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-05-20
AI Technical Summary
The filter element of the existing fireproof mask is fixedly installed and cannot be replaced quickly, resulting in limited effective use time and inability to continuously provide effective protection.
Design a new type of fireproof mask, which uses a replaceable filter tube structure. The filter element is placed in a filter barrel. The filter tube is connected with the tube through the thread, equipped with a sealing structure and activity structure to enhance the sealing and convenient replacement.
The use time of the fire mask has been extended, the protection duration and survival probability of the user have been increased, the sealingability is enhanced, and the protection effect and user security are further improved.
Smart Images
Figure CN222400047U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fireproof masks, in particular to a novel fireproof mask. Background Art
[0002] A fire mask is a piece of equipment used to protect the face from dangerous factors such as fire, high temperature, and smoke. It is usually made of fire-resistant materials, can withstand high temperatures and prevent flames and toxic gases from directly contacting the facial skin, thereby protecting the user's facial safety.
[0003] The fire mask is provided with a filter element, which is used to filter smoke and dust, thereby providing relatively clean air for the user. However, for the fire mask in the prior art, the filter element thereon is generally a fixed installation structure and cannot be quickly replaced, which results in a limited effective use time of the fire mask. When the filter element in the fire mask reaches a saturated state, it can no longer provide effective protection to the user.
[0004] Therefore, it is necessary to design a new type of fireproof mask to solve the above problems. Utility Model Content
[0005] The utility model aims to solve the shortcomings in the prior art and provides a novel fireproof mask.
[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0007] A new type of fireproof mask includes a fireproof head cover, a filter cover is fixed on the fireproof head cover, a mounting tube is fixed on the filter cover, a replaceable filter tube is arranged on the mounting tube, a filter element is built in the filter tube, a thread is arranged on the outer surface of the filter tube, a thread groove is arranged on the inner surface of the mounting tube, the filter tube is threadedly sleeved on the mounting tube, a sealing structure is arranged on the mounting tube, and a movable structure is arranged on the filter tube.
[0008] As a preferred technical solution of the utility model, the sealing structure includes an annular cylinder, an annular sliding plug, a connecting rod, a spring, a sealing ring and a connecting pipe. The annular cylinder is fixed to the inner surface of the filter cover, and the annular sliding plug is sealingly and slidingly connected to the inner surface of the annular cylinder. One end of the connecting rod is fixedly connected to the annular sliding plug, and the other end extends to the outside of the annular cylinder. One end of the spring is connected to the inner surface of the annular cylinder, and the other end is connected to the annular sliding plug. The sealing ring is bonded to the inner surface of the mounting cylinder, and the sealing ring has a hollow structure. One end of the connecting pipe is connected to the annular cylinder, and the other end is connected to the sealing ring.
[0009] As a preferred technical solution of the utility model, the movable structure includes a movable sleeve, a limiting ring, an annular limiting groove and a second spring. The movable sleeve is movably mounted on the filter cartridge, the limiting ring is fixed on the inner surface of the movable sleeve, the annular limiting groove is opened on the outer peripheral surface of the filter cartridge, the limiting ring is placed in the annular limiting groove, the second spring is fixed on the groove wall of the annular limiting groove, and one end of the second spring is in contact with the limiting ring.
[0010] As a preferred technical solution of the utility model, the outer surface of the filter cartridge and the inner surface of the movable sleeve are in contact with each other.
[0011] As a preferred technical solution of the utility model, the side surface of the limiting ring and the groove wall of the annular limiting groove are in contact with each other.
[0012] As a preferred technical solution of the utility model, a plurality of air passages are provided on the filter cartridge.
[0013] The utility model has the following beneficial effects:
[0014] 1. The replaceable filter cartridge prolongs the use time of the fire mask. When the filter element reaches saturation, the user can quickly replace the new filter cartridge, which can increase the protection time of the fire mask for the user and increase the user's survival probability in a fire environment;
[0015] 2. The design of the annular sliding plug and the sealing ring increases the sealing between the installation cylinder and the filter cylinder, preventing toxic smoke from entering the mask through the gap, further improving the protection effect and user safety. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the structure of a new type of fireproof mask proposed by the utility model;
[0017] Figure 2 It is a schematic diagram of the structure of the filter cover and the filter cartridge;
[0018] Figure 3 It is a schematic diagram of the cross-sectional structure of the filter cover and the filter cartridge;
[0019] Figure 4 for Figure 3 A magnified view of the structure at A.
[0020] In the figure: 1 fireproof head cover, 2 filter cover, 3 installation cylinder, 4 filter cylinder, 5 filter element, 61 annular cylinder, 62 annular sliding plug, 63 connecting rod, 64 spring one, 65 sealing ring, 66 connecting pipe, 71 movable sleeve, 72 limiting ring, 73 annular limiting groove, 74 spring two. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0022] Reference Figure 1-4 A novel fireproof mask comprises a fireproof head cover 1, a filter cover 2 is fixed on the fireproof head cover 1, a mounting tube 3 is fixed on the filter cover 2, a replaceable filter cartridge 4 is arranged on the mounting tube 3, a plurality of air passages are opened on the filter cartridge 4, a filter element 5 is built in the filter cartridge 4, a thread is arranged on the outer surface of the filter cartridge 4, a thread groove is arranged on the inner surface of the mounting tube 3, and the filter cartridge 4 is threadedly sleeved on the mounting tube 3;
[0023] The mounting cylinder 3 is provided with a sealing structure, which includes an annular cylinder 61, an annular sliding plug 62, a connecting rod 63, a spring 64, a sealing ring 65 and a connecting pipe 66. The annular cylinder 61 is fixed to the inner surface of the filter cover 2, the annular sliding plug 62 is sealingly and slidably connected to the inner surface of the annular cylinder 61, one end of the connecting rod 63 is fixedly connected to the annular sliding plug 62, and the other end extends to the outside of the annular cylinder 61, one end of the spring 64 is connected to the inner surface of the annular cylinder 61, and the other end is connected to the annular sliding plug 62, the sealing ring 65 is bonded to the inner surface of the mounting cylinder 3, and the sealing ring 65 is a hollow structure, and one end of the connecting pipe 66 is connected to the annular cylinder 61 , the other end is connected with the sealing ring 65, the filter cylinder 4 will move toward the inside of the installation cylinder 3 and squeeze the connecting rod 63. When the connecting rod 63 is squeezed, it can move, thereby driving the annular sliding plug 62 to move. When the annular sliding plug 62 moves, it can press the air in the annular cylinder 61 into the inside of the sealing ring 65 through the connecting pipe 66, so that the sealing ring 65 is inflated. When the sealing ring 65 expands, it can press the movable sleeve 71. In this case, the expanded sealing ring 65 can increase the sealing between the installation cylinder 3 and the filter cylinder 4, and prevent toxic smoke from entering the interior of the fireproof head cover 1 through the gap between the installation cylinder 3 and the filter cylinder 4;
[0024] The filter cartridge 4 is provided with a movable structure, which includes a movable sleeve 71, a limiting ring 72, an annular limiting groove 73 and a spring 2 74. The movable sleeve 71 is movably sleeved on the filter cartridge 4, the outer surface of the filter cartridge 4 and the inner surface of the movable sleeve 71 fit each other, the limiting ring 72 is fixed to the inner surface of the movable sleeve 71, the annular limiting groove 73 is provided on the outer peripheral surface of the filter cartridge 4, the limiting ring 72 is placed in the annular limiting groove 73, the side surface of the limiting ring 72 and the groove wall of the annular limiting groove 73 fit each other, the spring 2 74 is fixed to the groove wall of the annular limiting groove 73, and the spring 2 One end of 74 is in contact with the limit ring 72. When the sealing ring 65 presses the movable sleeve 71, the movable sleeve 71 cannot continue to move and rotate, which makes the filter cartridge 4 and the movable sleeve 71 able to move and rotate relative to each other. This design can avoid that when the sealing ring 65 presses the movable sleeve 71, the filter cartridge 4 still drives the movable sleeve 71 to rotate and move, so that the sealing ring 65 and the movable sleeve 71 can be in close contact, and the sealing ring 65 is prevented from being deformed under the rotation and movement of the movable sleeve 71, thereby ensuring the sealing effect of the sealing ring 65 on the installation cartridge 3 and the filter cartridge 4.
[0025] The specific working principle of the utility model is as follows:
[0026] The fireproof mask proposed by the utility model has a replaceable filter cartridge 4. When the filter element 5 in the filter cartridge 4 reaches a saturated state, the user can replace the new filter cartridge 4 to extend the service life of the fireproof mask. The filter cartridge 4 is connected to the mounting cylinder 3 by a threaded sleeve. The user can remove the filter cartridge 4 from the mounting cylinder 3 by rotating the filter cartridge 4. When installing a new filter cartridge 4, it is only necessary to screw the filter cartridge 4 into the mounting cylinder 3. The operation is convenient. Since the user needs to hold his breath during the replacement of the filter cartridge 4 to avoid toxic smoke being inhaled into the body, this quick replacement method enables the user to complete the replacement of the filter cartridge 4 in the breath-holding state.
[0027] When installing the filter cartridge 4, the user rotates the filter cartridge 4, and the filter cartridge 4 moves toward the inside of the installation cartridge 3 and squeezes the connecting rod 63. When the connecting rod 63 is squeezed, it can move, thereby driving the annular sliding plug 62 to move. When the annular sliding plug 62 moves, it can press the air in the annular cartridge 61 into the inside of the sealing ring 65 through the connecting pipe 66, so that the sealing ring 65 is inflated and expanded. When the sealing ring 65 expands, it can press the movable sleeve 71. In this case, the expanded sealing ring 65 can increase the sealing between the installation cartridge 3 and the filter cartridge 4, and prevent toxic smoke from entering the inside of the fireproof head cover 1 through the gap between the installation cartridge 3 and the filter cartridge 4, thereby ensuring the protection effect of the fireproof mask for the user. In addition, the movable sleeve 71 The movable sleeve 71 can be freely rotated and slid on the filter cartridge 4. The limiting ring 72 and the annular limiting groove 73 limit the movable sleeve 71 to prevent the movable sleeve 71 from falling off the filter cartridge 4. When the sealing ring 65 presses the movable sleeve 71, the movable sleeve 71 cannot continue to move and rotate, which enables the filter cartridge 4 and the movable sleeve 71 to move and rotate relative to each other. This design can prevent the filter cartridge 4 from still driving the movable sleeve 71 to rotate and move when the sealing ring 65 presses the movable sleeve 71, so that the sealing ring 65 and the movable sleeve 71 can be in close contact with each other, avoiding deformation of the sealing ring 65 under the rotation and movement of the movable sleeve 71, thereby ensuring the sealing effect of the sealing ring 65 on the installation cartridge 3 and the filter cartridge 4.
[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A new type of fire-proof mask, including a fire-proof head cover (1), wherein a filter cover (2) is fixed on the fire-proof head cover (1), characterized in that, A mounting cylinder (3) is fixed on the filter cover (2), a replaceable filter cylinder (4) is arranged on the mounting cylinder (3), a filter element (5) is built into the filter cylinder (4), a thread is arranged on the outer surface of the filter cylinder (4), a thread groove is arranged on the inner surface of the mounting cylinder (3), the filter cylinder (4) is threadedly sleeved on the mounting cylinder (3), a sealing structure is arranged on the mounting cylinder (3), and a movable structure is arranged on the filter cylinder (4).
2. A new type of fire-proof mask according to claim 1, characterized in that The sealing structure comprises an annular cylinder (61), an annular sliding plug (62), a connecting rod (63), a spring (64), a sealing ring (65) and a connecting pipe (66); the annular cylinder (61) is fixed to the inner surface of the filter cover (2); the annular sliding plug (62) is sealingly and slidably connected to the inner surface of the annular cylinder (61); one end of the connecting rod (63) is fixedly connected to the annular sliding plug (62) and the other end extends to the outside of the annular cylinder (61); one end of the spring (64) is connected to the inner surface of the annular cylinder (61) and the other end is connected to the annular sliding plug (62); the sealing ring (65) is bonded to the inner surface of the mounting cylinder (3) and has a hollow structure; one end of the connecting pipe (66) is connected to the annular cylinder (61) and the other end is connected to the sealing ring (65).
3. A new type of fire-proof mask according to claim 1, characterized in that The movable structure comprises a movable sleeve (71), a limiting ring (72), an annular limiting groove (73) and a second spring (74); the movable sleeve (71) is movably sleeved on the filter cartridge (4); the limiting ring (72) is fixed on the inner surface of the movable sleeve (71); the annular limiting groove (73) is provided on the outer peripheral surface of the filter cartridge (4); the limiting ring (72) is placed in the annular limiting groove (73); the second spring (74) is fixed on the groove wall of the annular limiting groove (73), and one end of the second spring (74) is in contact with the limiting ring (72).
4. A new type of fire-proof mask according to claim 3, characterized in that The outer surface of the filter cartridge (4) and the inner surface of the movable sleeve (71) are bonded to each other.
5. A new type of fire-proof mask according to claim 3, characterized in that The sides of the limiting ring (72) and the groove walls of the annular limiting groove (73) are bonded to each other.
6. A new type of fire-proof mask according to claim 1, characterized in that The filter cartridge (4) is provided with a plurality of air passages.