Range-extending oxygen self-generating respirator and using method thereof

Abstract

The invention discloses a range-extended oxygen self-generating respirator and a using method thereof, and relates to the technical field of chemical oxygen respirators, the range-extended oxygen self-generating respirator comprises a mask, a respirator, an oxygen generating tank and an air bag, a first corrugated pipe is communicated and connected between the oxygen generating tank and the air bag, and a second corrugated pipe is communicated and connected between the air bag and the respirator. After the oxygen generation tank is installed and positioned, the oxygen generation tank is rotated, in the rotating process of the oxygen generation tank, through the connection effect of the installation sleeve, all sets of limiting blocks are driven to slide on the inner wall of the annular positioning groove, in the sliding process, when the limiting blocks are located on the outer side of the limiting groove, the limiting blocks are pushed through the abutting-against and pushing effect of the telescopic assemblies on the limiting blocks, and therefore the limiting blocks are driven to slide on the inner wall of the annular positioning groove. And the limiting block is inserted into the limiting groove to limit the oxygen generation tank after being pushed and mounted, so that quick mounting and limiting operation of the oxygen generation tank is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of chemical oxygen respirators, in particular to an extended-range self-generating oxygen respirator and a use method thereof. Background Art

[0002] Self-generating oxygen respirator is a personal respiratory protective device made by using the principle of oxygen generation by chemical agents. During the entire use process, the breathing action is isolated from the outside world and is not harmed by any toxic, harmful gases and smoke from the outside world. Therefore, it is suitable for various toxic, harmful gases and oxygen-deficient environments. Chemical oxygen respirator is generally composed of four parts: mask, breathing mask, oxygen tank and air bag. It adopts two passage methods: reciprocating or circulating. The water vapor and carbon dioxide in the wearer's exhaled gas react chemically with the oxygen generator in the oxygen tank to release oxygen for the wearer to breathe.

[0003] At present, chemical oxygen respirators on the market are generally designed according to the use time of 15 minutes, 20 minutes, 25 minutes, 30 minutes, 60 minutes, and 240 minutes. The difference in the number of minutes is mainly controlled by the amount of potassium superoxide used. The more minutes, the more oxygen generating agent (potassium superoxide) is loaded, and the longer the market use and protection can be met. However, it will bring heavier weight and larger volume. When dealing with some complex environments, it will cause users to be unable to pass through narrow passages or burdened by the weight of the product, which is not convenient for long-term use of chemical oxygen respirators. For this reason, we propose a "range-extended" concept of self-generated oxygen (chemical oxygen) respirator, and provide corresponding structural principles and usage methods, so that the respirator can achieve a longer use time while ensuring lightweight and small size. Summary of the invention

[0004] The object of the present invention is to provide an extended-range self-oxygen breathing apparatus and a method of using the same to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: an extended-range self-generating oxygen respirator, comprising a mask, a breathing mask, an oxygen generating tank and an air bag, wherein a first bellows is connected between the oxygen generating tank and the air bag, and a second bellows is connected between the air bag and the breathing mask, and further comprising:

[0006] An installation component arranged between the oxygen generating tank and the breathing mask for assisting the rapid installation and replacement of the oxygen generating tank to achieve the purpose of range extension, the installation component includes a fixed tube fixed on the breathing mask, a connecting tube for being inserted and installed with the inner side of the fixed tube is fixed on the oxygen generating tank, a sealing ring for sealing against the inner side of the fixed tube is sleeved on the outer side of the connecting tube, a mounting sleeve is sleeved on the outer side of the connecting tube, one end of the mounting sleeve is fixed to the oxygen generating tank, a limiting component for limiting position during installation is arranged between the mounting sleeve and the fixed tube, an unlocking component for quickly unlocking after limiting position is arranged inside the mounting sleeve, and a sealing component for sealing between the mounting sleeve and the fixed tube after installation is arranged on the inner side of the mounting sleeve.

[0007] Preferably, the limit assembly includes a plurality of groups of limit grooves opened on the outside of the fixed tube, and a plurality of groups of limit blocks for inserting and limiting the limit grooves are arranged between the mounting sleeve and the connecting tube. Each group of the limit grooves is arranged in one-to-one correspondence with each group of the limit blocks. One side of the limit block is provided with an inclined surface for abutting the end of the fixed tube for transmission, and a telescopic assembly for telescopically connecting the limit block is arranged inside the mounting sleeve.

[0008] Preferably, an annular positioning groove for positioning during the limiting process is opened on the outer side of the fixing tube, and each group of the limiting grooves is located inside the annular positioning groove.

[0009] Preferably, the telescopic assembly includes multiple groups of sleeves fixed on the inner side of the mounting sleeve, each group of the sleeves is slidably connected with a slide rod, one end of the slide rod is fixed to a limit block, and the outer side of each group of the sleeves is provided with a spring.

[0010] Preferably, the unlocking component includes a driving ring rotatably connected between the mounting sleeve and the connecting tube, a rotating component for rotatably connecting the driving ring is arranged inside the mounting sleeve, a plurality of groups of inclined grooves are provided on the driving ring, each group of the inclined grooves is slidably connected with a transmission pin, one end of each group of the transmission pins is respectively fixed to one side of each group of limit blocks, and a pushing component for pushing the driving ring is arranged on the mounting sleeve.

[0011] Preferably, the rotating assembly includes an annular groove formed on the inner side of the mounting sleeve, an annular plate is rotatably connected to the interior of the annular groove, and the annular plate is sleeved and fixed on the outer side of the driving ring.

[0012] Preferably, the pushing assembly includes an installation box installed on the outside of the installation sleeve, the installation box is communicated with the interior of the installation sleeve, a transmission plate is provided inside the installation box, one end of the transmission plate is fixed to the driving ring, and an arc-shaped push plate is fixed to the other end of the transmission plate, and a plurality of groups of anti-slip protrusions are provided on the outside of the arc-shaped push plate.

[0013] Preferably, the sealing assembly includes an annular cover fixed inside the mounting sleeve, an annular airbag is installed inside the annular cover for sealing against the outside of the fixed tube, and each group of the limit blocks is provided with an inflation assembly for inflating the inside of the annular airbag.

[0014] Preferably, the inflation assembly includes a piston tube installed on the annular cover, one end of the piston tube is communicated with the interior of the annular airbag, a piston rod is slidably connected to the piston tube, a connecting rod is arranged between the piston rod and the limit block, and both ends of the connecting rod are rotatably connected to the limit block and the piston rod respectively through a pin shaft.

[0015] Preferably, a method for using an extended-range self-generating oxygen breathing apparatus comprises the following steps:

[0016] S1: When the self-generating oxygen respirator is in use, the mask is worn on the user's face. When exhaling, the exhaled gas enters the oxygen tank through the mask and the oxygen tank connecting pipe. After chemical reaction in the oxygen tank, the gas enters the interior of the airbag from the oxygen tank through the first bellows;

[0017] S2: When inhaling, the oxygen stored in the airbag is transported to the mask through the interconnection of the second bellows, achieving the purpose of self-generated oxygen breathing;

[0018] S3: During the use of the self-generating oxygen respirator, when the potassium superoxide agent stored in the oxygen tank is consumed by reaction, other oxygen tanks storing potassium superoxide agent are quickly replaced on the front side of the mask through the cooperation of the installation component, the limit component and the unlocking component. Through the rapid replacement of the oxygen tank, the purpose of range extension during the use of the self-generating oxygen respirator is achieved, which is convenient for the long-term operation and use of the self-generating oxygen respirator;

[0019] S4: During the installation of the oxygen tank on the self-oxygenating respirator, the oxygen tank is pushed toward the front side of the mask. During the pushing process, the fixing tube is placed between the connecting tube and the installation sleeve, and the sealing ring is abutted against the inner side of the fixing tube, so that the installation of the oxygen tank is initially sealed;

[0020] S5: In the process of pushing the oxygen tank, the inclined surfaces on each group of limit blocks abut against the end of the fixed pipe. In the process of abutting against each other, each group of limit blocks is pushed to contract toward the inner side of the installation sleeve through transmission action;

[0021] S6: As the oxygen tank is pushed for installation, when each group of limit blocks is located outside the annular positioning groove, the limit blocks are pushed against each other by the springs on the telescopic assembly, so that one side of the limit block is pushed against the inner side of the annular positioning groove, and the push installation of the oxygen tank is positioned by the offset action of the limit block and the annular positioning groove;

[0022] S7: After the oxygen generating tank is installed and positioned, the oxygen generating tank is rotated. During the rotation of the oxygen generating tank, the connection of the installation sleeve drives each group of limit blocks to slide on the inner wall of the annular positioning groove. During the sliding process, when the limit blocks are located outside the limit grooves, the limit blocks are pushed against each other by the telescopic assembly, so that the limit blocks are inserted into the inside of the limit grooves, and the oxygen generating tank after being pushed and installed is limited, thereby realizing the rapid installation and limiting operation of the oxygen generating tank.

[0023] S8: During the process of contraction movement of each group of limit blocks under force, the piston rod is pushed toward the inside of the piston tube through the connecting transmission effect of the connecting rod. During the movement of the piston rod, part of the gas inside the piston tube is squeezed and transported to the inside of the annular airbag to inflate the inside of the annular airbag. Through the inflation effect, the annular airbag expands and abuts against the outer side of the fixed tube, further sealing the installation of the oxygen tank;

[0024] S9: When the oxygen generating tank needs to be disassembled, the driving ring is rotated inside the installation sleeve through the pushing action of the arc-shaped push plate and the connecting action of the transmission plate. During the rotation of the driving ring, the mutual transmission action between each group of inclined grooves and each group of transmission pins drives each group of limit blocks to be forced to contract toward the inside of the installation sleeve. By contracting each group of limit blocks, the limit of the oxygen generating tank is released. At this time, the oxygen generating tank is pulled to be removed from the fixed pipe, thereby realizing the rapid disassembly operation of the oxygen generating tank.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] After the oxygen generating tank is installed and positioned, the oxygen generating tank is rotated. During the rotation of the oxygen generating tank, the connection function of the installation sleeve drives each group of limit blocks to slide on the inner wall of the annular positioning groove. During the sliding process, when the limit blocks are located outside the limit grooves, the limit blocks are pushed by the telescopic components to be inserted into the inside of the limit grooves, so as to limit the oxygen generating tank after being pushed and installed, thereby realizing the rapid installation and limiting operation of the oxygen generating tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall appearance structure of the present invention;

[0028] Figure 2 It is a schematic diagram of the structure of the installation assembly of the present invention;

[0029] Figure 3 It is a schematic diagram of the internal structure of the installation sleeve of the present invention;

[0030] Figure 4 It is a schematic diagram of the structure of the limit assembly and the telescopic assembly of the present invention;

[0031] Figure 5 It is a schematic diagram of the unlocking assembly and the rotating assembly structure of the present invention;

[0032] Figure 6 It is a schematic diagram of the structure of the driving component of the present invention;

[0033] Figure 7 It is a schematic diagram of the structure of the sealing component and the inflation component of the row of the present invention.

[0034] In the figure: 101, mask; 102, breathing mask; 103, oxygen tank; 104, air bag; 105, first bellows; 106, second bellows; 201, fixing pipe; 202, connecting pipe; 203, mounting sleeve; 204, sealing ring; 301, limiting block; 302, limiting groove; 303, inclined surface; 4, annular positioning groove; 501, sleeve; 502, slide bar; 503, spring; 601, drive ring; 602, inclined groove; 603, transmission pin; 701, annular groove; 702, annular plate; 801, mounting box; 802, transmission plate; 803, arc push plate; 804, anti-skid protrusion; 901, annular cover; 902, annular air bag; 1001, piston tube; 1002, piston rod; 1003, connecting rod. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Example 1

[0037] See also Figure 1-Figure 7 The extended-range self-generating oxygen respirator shown in the figure includes a mask 101, a breathing mask 102, an oxygen tank 103 and an air bag 104, a first bellows 105 is connected between the oxygen tank 103 and the air bag 104, and a second bellows 106 is connected between the air bag 104 and the breathing mask 102, and also includes:

[0038] An installation component disposed between the oxygen tank 103 and the breathing mask 102 for assisting the rapid installation and replacement of the oxygen tank 103 to achieve the purpose of range extension;

[0039] It is worth noting here that: during the use of the self-oxygenating respirator, the mask 101 is worn on the face of the user, and when exhaling, the exhaled gas enters the oxygen tank 103 through the mask 101 and the oxygen tank 103 connecting pipe 202, and after chemical reaction in the oxygen tank 103, the gas enters the interior of the air bag 104 from the oxygen tank 103 through the first bellows 105, wherein, for the circulation of the gas, the mask 101 is provided with a first one-way valve for one-way transport of the exhaled gas toward the oxygen tank 103, and the mask 101 is also provided with a second one-way valve for one-way supply of oxygen inside the air bag 104 toward the inside of the mask 101;

[0040] The installation component includes a fixed tube 201 fixed on the breathing mask 102, a connecting tube 202 for being inserted and installed on the inner side of the fixing tube 201 is fixed on the oxygen generating tank 103, a sealing ring 204 for sealing against the inner side of the fixing tube 201 is sleeved on the outer side of the connecting tube 202, a mounting sleeve 203 is sleeved on the outer side of the connecting tube 202, one end of the mounting sleeve 203 is fixed to the oxygen generating tank 103, a limiting component for limiting position during installation is arranged between the mounting sleeve 203 and the fixing tube 201, an unlocking component for quickly unlocking after limiting position is arranged inside the mounting sleeve 203, and a sealing component for sealing between the mounting sleeve 203 and the fixing tube 201 after installation is arranged on the inner side of the mounting sleeve 203;

[0041] It should be noted here that: during the use of the self-generating oxygen respirator, when the potassium superoxide agent stored in the oxygen tank 103 is consumed by reaction, other oxygen tanks 103 storing potassium superoxide agent can be quickly replaced on the front side of the mask 101 through the cooperation of the mounting assembly, the limit assembly and the unlocking assembly. By quickly replacing the oxygen tank 103, the purpose of extending the range during the use of the self-generating oxygen respirator is achieved, which facilitates the long-term operation and use of the self-generating oxygen respirator.

[0042] Preferably, the limiting assembly includes a plurality of groups of limiting grooves 302 provided on the outside of the fixed tube 201, a plurality of groups of limiting blocks 301 for inserting and limiting the limiting grooves 302 are provided between the mounting sleeve 203 and the connecting tube 202, each group of limiting grooves 302 is provided in one-to-one correspondence with each group of limiting blocks 301, a slope 303 for the end of the fixed tube 201 to abut against the transmission is provided on one side of the limiting block 301, and a telescopic assembly for telescopically connecting the limiting block 301 is provided inside the mounting sleeve 203;

[0043] It should be noted here that: after the oxygen tank 103 is installed and positioned, the oxygen tank 103 is rotated. During the rotation of the oxygen tank 103, the connection effect of the installation sleeve 203 drives each group of limit blocks 301 to slide on the inner wall of the annular positioning groove 4. During the sliding process, when the limit block 301 is on the outside of the limit groove 302, the limit block 301 is pushed by the telescopic component to be inserted into the inside of the limit groove 302, so as to limit the oxygen tank 103 after being pushed and installed, thereby realizing the rapid installation and limiting operation of the oxygen tank 103.

[0044] Preferably, an annular positioning groove 4 for positioning during the limiting process is provided on the outer side of the fixing tube 201, and each group of limiting grooves 302 is located inside the annular positioning groove 4;

[0045] It should be noted here that: as the oxygen tank 103 is pushed for installation, when each group of limit blocks 301 is located on the outside of the annular positioning groove 4, the limit blocks 301 are pushed against each other by the groups of springs 503 on the telescopic assembly, so that one side of the limit block 301 is pushed to resist the inner side of the annular positioning groove 4, and the push installation of the oxygen tank 103 is positioned through the resisting action between the limit block 301 and the annular positioning groove 4.

[0046] Preferably, the telescopic assembly includes a plurality of sets of sleeves 501 fixed to the inner side of the mounting sleeve 203, each set of sleeves 501 is slidably connected with a slide bar 502, one end of the slide bar 502 is fixed to the limit block 301, and a spring 503 is sleeved on the outer side of each set of sleeves 501;

[0047] It should be noted that: multiple sets of sleeves 501 and slide bars 502 are used to assist the telescopic guidance of the limit block 301, and each set of springs 503 is used to facilitate the reset movement of the limit block 301 after being subjected to force.

[0048] Preferably, the unlocking assembly includes a driving ring 601 rotatably connected between the mounting sleeve 203 and the connecting tube 202, a rotating assembly for rotatably connecting the driving ring 601 is arranged inside the mounting sleeve 203, a plurality of groups of inclined grooves 602 are provided on the driving ring 601, a driving pin 603 is slidably connected to each group of inclined grooves 602, one end of each group of driving pins 603 is respectively fixed to one side of each group of limit blocks 301, and a pushing assembly for pushing the driving ring 601 is arranged on the mounting sleeve 203;

[0049] It should be noted here that: by pushing the assembly, the driving ring 601 is rotated inside the mounting sleeve 203. During the rotation of the driving ring 601, through the mutual transmission action between each group of inclined grooves 602 and each group of transmission pins 603, each group of limit blocks 301 is driven to be forced to contract toward the inner side of the mounting sleeve 203. By contracting each group of limit blocks 301, the limit on the oxygen tank 103 is released. At this time, the oxygen tank 103 is pulled to be removed from the fixing tube 201, thereby realizing the rapid disassembly operation of the oxygen tank 103.

[0050] Preferably, the rotating assembly includes an annular groove 701 formed on the inner side of the mounting sleeve 203, and an annular plate 702 is rotatably connected inside the annular groove 701, and the annular plate 702 is sleeved and fixed on the outer side of the driving ring 601;

[0051] It should be noted here that the annular groove 701 and the annular plate 702 facilitate the rotation operation of the auxiliary driving ring 601 .

[0052] Preferably, the pushing assembly includes an installation box 801 installed on the outside of the installation sleeve 203, the installation box 801 is communicated with the inside of the installation sleeve 203, a transmission plate 802 is arranged inside the installation box 801, one end of the transmission plate 802 is fixed to the driving ring 601, and an arc-shaped push plate 803 is fixed to the other end of the transmission plate 802, and a plurality of groups of anti-slip protrusions 804 are arranged on the outside of the arc-shaped push plate 803;

[0053] It should be noted here that: through the pushing action of the arc-shaped push plate 803 and the connecting action of the transmission plate 802, the drive ring 601 can be easily rotated inside the mounting sleeve 203, and the friction force is increased by multiple sets of anti-slip protrusions 804, which facilitates the pushing operation of the arc-shaped push plate 803.

[0054] Preferably, the sealing assembly includes an annular cover 901 fixed to the inside of the mounting sleeve 203, an annular airbag 902 for sealing against the outside of the fixed tube 201 is installed inside the annular cover 901, and each group of limit blocks 301 is provided with an inflation assembly for inflating the inside of the annular airbag 902; the inflation assembly includes a piston tube 1001 installed on the annular cover 901, one end of the piston tube 1001 is communicated with the inside of the annular airbag 902, a piston rod 1002 is slidably connected to the piston tube 1001, a connecting rod 1003 is provided between the piston rod 1002 and the limit block 301, and both ends of the connecting rod 1003 are rotatably connected to the limit block 301 and the piston rod 1002 through a pin shaft;

[0055] It should be noted here that: during the process of contraction movement of each group of limit blocks 301 under force, the piston rod 1002 is pushed toward the inside of the piston tube 1001 through the connecting transmission action of the connecting rod 1003. During the movement of the piston rod 1002, part of the gas inside the piston tube 1001 is squeezed and transported to the inside of the annular airbag 902, and the inside of the annular airbag 902 is inflated. Through the inflation action, the annular airbag 902 expands and contacts the outer side of the fixed tube 201, further sealing the installation of the oxygen tank 103.

[0056] In this scheme: an extended-range self-generating oxygen breathing apparatus comprises the following steps:

[0057] S1: When the self-generating oxygen respirator is in use, the mask 101 is worn on the user's face. When the user exhales, the exhaled gas passes through the mask 101 and the oxygen tank 103 connecting pipe 202 and enters the oxygen tank 103. After chemical reaction in the oxygen tank 103, the gas passes from the oxygen tank 103 through the first bellows 105 and enters the interior of the airbag 104.

[0058] S2: During inhalation, the oxygen stored in the airbag 104 is delivered to the mask 101 through the interconnection of the second bellows 106, so as to achieve the purpose of self-generated oxygen respiration;

[0059] S3: During the use of the self-generating oxygen respirator, when the potassium superoxide agent stored in the oxygen tank 103 is consumed by reaction, the other oxygen tanks 103 storing potassium superoxide agent are quickly replaced on the front side of the mask 101 through the cooperation of the mounting assembly, the limit assembly and the unlocking assembly. By quickly replacing the oxygen tanks 103, the purpose of range extension during the use of the self-generating oxygen respirator is achieved, which is convenient for long-term operation of the self-generating oxygen respirator.

[0060] S4: During the installation of the oxygen tank 103 on the oxygen generating respirator, the oxygen tank 103 is pushed toward the front side of the mask 101. During the pushing process, the fixing tube 201 is located between the connecting tube 202 and the mounting sleeve 203, and the sealing ring 204 is abutted against the inner side of the fixing tube 201, so that the installation of the oxygen tank 103 is initially sealed;

[0061] S5: In the process of pushing the oxygen tank 103, the inclined surfaces 303 on each group of limit blocks 301 abut against the end of the fixed tube 201. In the process of abutting against each other, each group of limit blocks 301 is pushed to contract toward the inner side of the installation sleeve 203 through transmission.

[0062] S6: As the oxygen tank 103 is installed and pushed, when each group of limit blocks 301 is located outside the annular positioning groove 4, the limit blocks 301 are pushed against each other by the springs 503 on the telescopic assembly, so that one side of the limit blocks 301 is pushed against the inner side of the annular positioning groove 4. The push installation of the oxygen tank 103 is positioned by the limit blocks 301 and the annular positioning groove 4.

[0063] S7: After the oxygen tank 103 is installed and positioned, the oxygen tank 103 is rotated. During the rotation of the oxygen tank 103, the connection of the installation sleeve 203 drives each group of limit blocks 301 to slide on the inner wall of the annular positioning groove 4. During the sliding process, when the limit block 301 is outside the limit groove 302, the limit block 301 is pushed by the telescopic component to insert the limit block 301 into the limit groove 302, so as to limit the oxygen tank 103 after being pushed and installed, thereby realizing the rapid installation and limit operation of the oxygen tank 103.

[0064] S8: During the process of contraction movement of each group of limit blocks 301 under force, the piston rod 1002 is pushed toward the inside of the piston tube 1001 through the connecting transmission effect of the connecting rod 1003. During the movement of the piston rod 1002, part of the gas inside the piston tube 1001 is squeezed and transported to the inside of the annular airbag 902, and the inside of the annular airbag 902 is inflated. Through the inflation effect, the annular airbag 902 expands and abuts against the outer side of the fixed tube 201, further sealing the installation of the oxygen tank 103;

[0065] S9: When the oxygen tank 103 needs to be disassembled, the driving ring 601 is rotated inside the mounting sleeve 203 through the pushing action of the arc-shaped push plate 803 and the connecting action of the transmission plate 802. During the rotation of the driving ring 601, the mutual transmission action between each group of inclined grooves 602 and each group of transmission pins 603 drives each group of limit blocks 301 to be forced to contract toward the inner side of the mounting sleeve 203. By contracting each group of limit blocks 301, the limit of the oxygen tank 103 is released. At this time, the oxygen tank 103 is pulled to be removed from the fixing pipe 201, thereby realizing the rapid disassembly operation of the oxygen tank 103.

[0066] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0067] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An extended-range self-generating oxygen breathing apparatus, comprising: A face mask (101), a breathing mask (102), an oxygen generating tank (103) and an air bag (104); a first bellows (105) is connected between the oxygen generating tank (103) and the air bag (104); and a second bellows (106) is connected between the air bag (104) and the breathing mask (102); It is characterized by further comprising: An installation assembly arranged between an oxygen generating tank (103) and a breathing mask (102) for assisting the rapid installation and replacement of the oxygen generating tank (103) to achieve the purpose of range extension, the installation assembly comprising a fixing pipe (201) fixed to the breathing mask (102), a connecting pipe (202) for inserting and installing with the inner side of the fixing pipe (201) being fixed to the oxygen generating tank (103), and a sealing ring for sealing against the inner side of the fixing pipe (201) being sleeved on the outer side of the connecting pipe (202) (204), the outer sleeve of the connecting pipe (202) is provided with a mounting sleeve (203), one end of the mounting sleeve (203) is fixed to the oxygen generating tank (103), a limiting component for limiting position during installation is provided between the mounting sleeve (203) and the fixed pipe (201), an unlocking component for quickly unlocking after limiting position is provided inside the mounting sleeve (203), and a sealing component for sealing between the mounting sleeve (203) and the fixed pipe (201) after installation is provided inside the mounting sleeve (203).

2. The extended-range self-generating oxygen breathing apparatus according to claim 1, characterized in that: The limiting assembly comprises a plurality of groups of limiting grooves (302) provided on the outside of the fixed tube (201); a plurality of groups of limiting blocks (301) for inserting and limiting the limiting grooves (302) are provided between the installation sleeve (203) and the connecting tube (202); each group of the limiting grooves (302) is provided in one-to-one correspondence with each group of limiting blocks (301); a slope (303) for abutting against the end of the fixed tube (201) for transmission is provided on one side of the limiting block (301); and a telescopic assembly for telescopically connecting the limiting block (301) is provided inside the installation sleeve (203).

3. The extended-range self-generating oxygen breathing apparatus according to claim 2, characterized in that: An annular positioning groove (4) for positioning during the limiting process is provided on the outer side of the fixing tube (201), and each group of the limiting grooves (302) is located inside the annular positioning groove (4).

4. The extended-range self-generating oxygen breathing apparatus according to claim 2, characterized in that: The telescopic assembly comprises a plurality of groups of sleeves (501) fixed to the inner side of the mounting sleeve (203), each group of the sleeves (501) being slidably connected to a slide rod (502), one end of the slide rod (502) being fixed to a limit block (301), and a spring (503) being sleeved on the outer side of each group of the sleeves (501).

5. The extended-range self-generating oxygen breathing apparatus according to claim 2, characterized in that: The unlocking component comprises a driving ring (601) rotatably connected between the mounting sleeve (203) and the connecting tube (202); a rotating component for rotatably connecting the driving ring (601) is arranged inside the mounting sleeve (203); a plurality of groups of inclined grooves (602) are provided on the driving ring (601); each group of the inclined grooves (602) is slidably connected with a transmission pin (603); one end of each group of the transmission pins (603) is respectively fixed to one side of each group of limit blocks (301); and a pushing component for pushing the driving ring (601) is arranged on the mounting sleeve (203).

6. The extended-range self-generating oxygen breathing apparatus according to claim 5, characterized in that: The rotating assembly comprises an annular groove (701) formed on the inner side of the mounting sleeve (203), an annular plate (702) is rotatably connected inside the annular groove (701), and the annular plate (702) is sleeved and fixed on the outer side of the driving ring (601).

7. The extended-range self-generating oxygen breathing apparatus according to claim 5, characterized in that: The pushing assembly comprises an installation box (801) installed on the outside of the installation sleeve (203), the installation box (801) is communicated with the inside of the installation sleeve (203), a transmission plate (802) is arranged inside the installation box (801), one end of the transmission plate (802) is fixed to the driving ring (601), and the other end of the transmission plate (802) is fixed with an arc-shaped push plate (803), and a plurality of groups of anti-slip protrusions (804) are arranged on the outside of the arc-shaped push plate (803).

8. The extended-range self-generating oxygen breathing apparatus according to claim 2, characterized in that: The sealing component comprises an annular cover (901) fixed inside the mounting sleeve (203), an annular airbag (902) for sealing against the outside of the fixing tube (201) being installed inside the annular cover (901), and an inflation component for inflating the inside of the annular airbag (902) being provided on each group of the limit blocks (301).

9. The extended-range self-generating oxygen breathing apparatus according to claim 8, characterized in that: The inflation component comprises a piston tube (1001) mounted on an annular cover (901), one end of the piston tube (1001) being in communication with the interior of an annular airbag (902), a piston rod (1002) being slidably connected to the piston tube (1001), a connecting rod (1003) being arranged between the piston rod (1002) and a limit block (301), and two ends of the connecting rod (1003) being rotatably connected to the limit block (301) and the piston rod (1002) respectively via a pin.

10. A method for using an extended-range self-oxygenating breathing apparatus, which refers to the extended-range self-oxygenating breathing apparatus according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: During use of the self-oxygenating respirator, the mask (101) is worn on the face of the user. When the user exhales, the exhaled gas passes through the mask (101) and enters the oxygen tank (103) through the oxygen tank (103) connecting pipe (202). After chemical reaction in the oxygen tank (103), the gas enters the interior of the air bag (104) from the oxygen tank (103) through the first bellows (105); S2: During inhalation, the oxygen stored in the air bag (104) is transported to the mask (101) through the interconnecting connection of the second bellows (106), thereby achieving the purpose of self-generated oxygen respiration; S3: During the use of the self-generating oxygen respirator, when the potassium superoxide agent stored in the oxygen generating tank (103) is consumed by reaction, another oxygen generating tank (103) storing potassium superoxide agent is quickly replaced on the front side of the mask (101) through the cooperation of the mounting assembly, the limit assembly and the unlocking assembly. By quickly replacing the oxygen generating tank (103), the purpose of range extension during the use of the self-generating oxygen respirator is achieved, which facilitates the long-term operation and use of the self-generating oxygen respirator. S4: During the installation of the oxygen generating tank (103) on the oxygen generating breathing apparatus, the oxygen generating tank (103) is pushed toward the front side of the mask (101). During the pushing process, the fixing tube (201) is located between the connecting tube (202) and the mounting sleeve (203) and the sealing ring (204) is abutted against the inner side of the fixing tube (201), thereby preliminarily sealing the installation of the oxygen generating tank (103); S5: In the process of pushing the oxygen generating tank (103), the inclined surfaces (303) on each group of limit blocks (301) abut against the end of the fixed tube (201). During the abutment, each group of limit blocks (301) is pushed to contract toward the inside of the installation sleeve (203) through the transmission effect; S6: As the oxygen generating tank (103) is pushed for installation, when each group of limit blocks (301) is located outside the annular positioning groove (4), the limit blocks (301) are pushed against each other by the groups of springs (503) on the telescopic assembly, so that one side of the limit block (301) is pushed against the inner side of the annular positioning groove (4), and the push installation of the oxygen generating tank (103) is positioned through the push action of the limit block (301) and the annular positioning groove (4); S7: After the oxygen generating tank (103) is installed and positioned, the oxygen generating tank (103) is rotated. During the rotation of the oxygen generating tank (103), the connection function of the installation sleeve (203) drives each group of limit blocks (301) to slide on the inner wall of the annular positioning groove (4). During the sliding process, when the limit blocks (301) are located outside the limit groove (302), the limit blocks (301) are pushed and pushed by the telescopic assembly, so that the limit blocks (301) are inserted into the inside of the limit groove (302), and the oxygen generating tank (103) that has been pushed and installed is limited, thereby realizing the rapid installation and limiting operation of the oxygen generating tank (103); S8: During the process of contraction movement of each group of limit blocks (301) under force, the piston rod (1002) is pushed to move toward the inside of the piston tube (1001) through the connecting transmission effect of the connecting rod (1003). During the movement of the piston rod (1002), part of the gas inside the piston tube (1001) is squeezed and transported to the inside of the annular airbag (902), and the inside of the annular airbag (902) is inflated. Through the inflation effect, the annular airbag (902) expands and abuts against the outer side of the fixed tube (201), and the installation of the oxygen generating tank (103) is further sealed; S9: When the oxygen generating tank (103) needs to be disassembled, the driving ring (601) is rotated inside the mounting sleeve (203) by the pushing action of the arc-shaped push plate (803) and the connecting action of the transmission plate (802). During the rotation of the driving ring (601), the mutual transmission action between each group of inclined grooves (602) and each group of transmission pins (603) drives each group of limit blocks (301) to be forced to move toward the inner side of the mounting sleeve (203) to shrink. By shrinking each group of limit blocks (301), the limit of the oxygen generating tank (103) is released. At this time, the oxygen generating tank (103) is pulled to remove the oxygen generating tank (103) from the fixing pipe (201), thereby realizing the rapid disassembly operation of the oxygen generating tank (103).

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