CN212067495U

CN212067495U - Portable mining breathing device

Info

Publication number: CN212067495U
Application number: CN202020386953.7U
Authority: CN
Inventors: 刘亮; 黄启福; 贾彦翔; 鲁檬; 耿铭
Original assignee: Beijing Machinery Equipment Research Institute
Current assignee: Beijing Machinery Equipment Research Institute
Priority date: 2020-03-24
Filing date: 2020-03-24
Publication date: 2020-12-04
Anticipated expiration: 2030-03-24

Abstract

The utility model relates to a portable mining breathing device belongs to colliery, fire rescue technical field of fleing, has solved the problem that current breathing device packing is bulky, inconvenient to carry. The portable mining breathing device of the utility model comprises a mask, wherein the mask comprises a supporting part and a sealing part; the supporting part is arranged at the outer side of the sealing part and used for supporting the sealing part, and the sealing part is used for fitting the face and covering the mouth of a user; the support part is a part of the packaging shell of the respirator; the sealing portion includes a nose clip for clipping the nose of the user. The utility model discloses a supporting part has reduced the space that occupies under the respiratory device packaging state as respiratory device packaging shell's partly, has reduced in the use waste of resources and potential safety hazard that packaging shell discarded the cause, conveniently carries and uses, and the security is high.

Description

Portable mining breathing device

Technical Field

The utility model relates to a colliery, fire rescue technical field that flees especially relate to a portable mining respiratory device.

Background

The compressed oxygen or chemical oxygen breathing apparatus generally has an oronasal mask which is fitted to the face of the person and allows fresh air generated by the breathing apparatus to pass through a hose into the oronasal mask and then into the respiratory tract of the person for breathing. Some products, such as the mining chemical oxygen self-rescuer, do not adopt an oral-nasal mask, but use a mouth tool and a nose clip for breathing, the nose clip closes the nostrils of the human body, and after the mouth tool is bitten by teeth, the respiratory system of the human body is connected with the trachea of the breathing device for breathing, and the wearing mode has less influence on the action of a person.

The mouth-nose mask or the mouth tool of all respiratory device products are sealed in the packing box in a standby state, and need to be removed from the packing box for reuse when in use. Traditional respiratory device need open the packing when using, just can take out an oral nasal mask or oral utensil after opening the packing carton lid, and the packing carton lid generally directly abandons, under the scene of saving oneself in fleing on a large scale, abandons a large amount of product packing lids on the ground, very probably leads to personnel to flee the in-process and stumble, causes more serious accident.

In conclusion, the existing chemical oxygen and compressed oxygen breathing device, such as the oronasal mask or the oral appliance, occupies a large volume, and the upper cover of the packaging box needs to be discarded when in use, so that resource waste and potential safety hazards exist.

SUMMERY OF THE UTILITY MODEL

In view of the above analysis, the embodiment of the utility model provides a portable mining breathing device is aimed at providing for solve the problem that current breathing device packing is bulky, inconvenient to carry.

The utility model provides a portable mining breathing device, which comprises a mask, wherein the mask comprises a supporting part and a sealing part; the supporting part is arranged at the outer side of the sealing part and used for supporting the sealing part, and the sealing part is used for fitting the face and covering the mouth of a user; the support part is a part of the packaging shell of the respirator;

the sealing portion includes a nose clip for clipping the nose of the user.

Further, the supporting part is arranged in the mounting groove of the upper cover of the respirator and can seal the mounting groove.

Further, the front end of the sealing part is provided with a plane part, and a through hole is formed in the plane part.

Further, the nose clip is disposed on the sealing portion at a position near the nose.

Further, the supporting part is provided with a first breathing part and a second breathing part which are communicated.

Further, the first breathing part is arranged at the lower end of the second breathing part.

Furthermore, the first breathing part is sleeved in the sealing part and is butted with the mouth of a user.

Further, the second breathing part is connected with a breathing pipe of a breathing device.

Further, the first breathing part is sleeved in the through hole.

Furthermore, the mask further comprises an elastic band, one end of the elastic band is clamped between the supporting part and the sealing part, and the other end of the elastic band is worn by a user.

Compared with the prior art, the utility model discloses can realize one of following beneficial effect at least:

(1) the utility model discloses a gauze mask includes the supporting part, and the supporting part is connected with the mounting groove of upper cover to can seal the mounting groove of upper cover, the supporting part has reduced respiratory device's packing volume as the partly of upper cover, has saved the material simultaneously, has avoided the waste.

(2) The utility model has the advantages that the breathing tube, the air bag and the oxygen generating tank are communicated by the three-way unit provided with the one-way valve, the air exhaled by the human body enters the air bag through the oxygen generating tank by only using one breathing tube, and then the air bag bypasses the oxygen generating tank to directly enter the circulating oxygen generating system of the human body, so that the structure for realizing the circulating oxygen generating by the traditional two-tube or three-tube is simplified, the use process is more convenient, and the action influence on a user is less; all the gas flows from one end of the air bag to the other end before entering a respiratory system of a human body, the gas flow stroke reaches the longest, the heat dissipation effect is better, meanwhile, the gas temperature is prevented from rising through the oxygen generating tank twice in the breathing process caused by reciprocating gas flow, and the comfort level of oxygen inhalation is improved;

(3) the oxygen generating tank is internally provided with the baffle plates which are staggered up and down, so that air flows into the oxygen generating tank from the air inlet pipe and then flows to the air outlet pipe along the continuous S-shaped curve, thereby avoiding the waste of the oxygen generating agent in other spaces caused by the air flowing only between the shortest connecting lines of the air inlet and outlet pipe ports; meanwhile, the partition plate is made of a heat pipe material and is in contact with the wall surface of the oxygen generating tank, so that the heat in the oxygen generating tank can be conducted to the outer wall, and the internal reaction temperature is reduced;

(4) the oxygen generating pot of the utility model is in a flat hemisphere shape, and is matched with the upper cover of the flat hemisphere shape, so that the breathing device is in a round cake shape in a packaging state, and is more comfortable when being hung at the waist and the like or hung in the front of the chest for use;

(5) the utility model discloses an oxygen generating tank is provided with the observation window, and the edge of observation window is provided with the scale mark, through the scale at observation window edge, can estimate the remaining guard time in the use, lets the user grasp the remaining guard time of respiratory device directly perceivedly, ensures the safety in utilization of respiratory device of saving oneself;

(6) the utility model discloses a set up the primary oxygen generating device, the primary oxygen generating device stores compressed oxygen, and the primary oxygen generating device communicates with the air inlet of gasbag, in the breathing device initial stage of wearing, opens the valve of the primary oxygen generating device, fills the inside compressed oxygen into the gasbag, supplies the user to use earlier, has improved the comfort level when the breathing device uses;

(7) the utility model discloses an oxygen generating tank outside cover is equipped with the radiation shield, is provided with the heat dissipation buffering hole on the radiation shield, not only can play the heat dissipation effect, can also play certain cushioning effect when oxygen generating tank receives the striking, avoids oxygen generating agent damage in oxygen generating tank to produce the dust, is unfavorable for fully reacting with the air of low oxygen concentration, causes the waste of oxygen generating agent, and the dust simultaneously easily gets into the respiratory track along with the air, causes the injury for the user;

(8) the utility model discloses a breathing airbag design of vest formula, the gasbag adopts U type design, produces the oxygen jar and inlays in U type space, makes respiratory device's main part distribute in the front of the chest, and folding structure is small and exquisite, dresses and uses more comfortable convenient, and has reflecting material on the vest, makes things convenient for rescue personnel to confirm the position by the stranded person.

The utility model discloses in, can also make up each other between the above-mentioned each technical scheme to realize more preferred combination scheme. Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.

Drawings

The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the invention, wherein like reference numerals are used to designate like parts throughout the drawings.

FIG. 1 is a schematic diagram of a packaged state of a breathing apparatus according to an embodiment;

FIG. 2 is a schematic view of the entire structure of the mask of the embodiment;

FIG. 3 is an exploded view of the mask according to the embodiment;

fig. 4 is an exploded view of the mask according to the embodiment;

fig. 5 is an exploded view (iii) of the overall structure of the mask of the embodiment;

FIG. 6 is an exploded view of a portion of the respiratory device of an embodiment;

FIG. 7 is a schematic view of the breathing apparatus with the mask removed according to the embodiment in use;

FIG. 8 is a schematic diagram of an oxygen generating portion of a breathing apparatus according to an embodiment;

FIG. 9 is a sectional view showing the construction of an oxygen generating device in the initial stage of removal of an oxygen generating part of a breathing device according to the embodiment;

fig. 10 is a structural sectional view showing a state in which an upper cover of the breathing apparatus of the embodiment is coupled to an oxygen generating tank.

Reference numerals:

1-mask; 11-a support; 111-a first respiratory portion; 112-a second respiratory portion; 12-a seal; 121-a through hole; 122-a nose clip; 123-pulling rope; 2-a breathing tube; 3-an oxygen producing section; 31-an oxygen generating tank; 311-an air inlet pipe; 312-an air outlet pipe; 313-a spacer; 314-quick release snap ring; 32-a tee unit; 321-a first channel; 322-a second channel; 3221-a first one-way valve; 323-a third channel; 3231-quick connector; 3232-a second one-way valve; 33-primary oxygen generating device; 34-a connecting tube; 35-a heat insulation sleeve; 351-a heat dissipation buffer hole; 4-air bag; 5, covering the upper cover; 51- "h" shaped port; 52-a buffer sleeve; 521-a slot; 53-packaging the collar; 6-waistband.

Detailed Description

The following detailed description of the preferred embodiments of the invention, which is to be read in connection with the accompanying drawings, forms a part of this application, and together with the embodiments of the invention, serve to explain the principles of the invention and not to limit its scope.

The utility model discloses a concrete embodiment, as shown in fig. 1-10, discloses a portable mining respiratory device, including gauze mask 1, gauze mask 1 includes supporting part 11 and sealing 12, and supporting part 11 is connected with sealing 12, and supporting part 11 sets up in the outside of sealing 12, and supporting part 11 is used for sealing 12's support, and sealing 12 is used for laminating facial, and supporting part 11 is respiratory device packaging shell's partly.

Compared with the prior art, the supporting part 11 of the mask in the embodiment provides external support for the soft sealing part 12 when in use, and is used as a part of the packaging shell, so that the internal space of the breathing device in a packaging state is reduced, namely, the volume of the breathing device is reduced, meanwhile, the volume of the packaging shell is reduced, excessive discarding is avoided, and resources are saved.

The supporting part 11 is an arc surface structure with a certain thickness, is made of hard materials, can be excessively matched with a packaging shell of the breathing device, and seals a corresponding mounting part in the packaging shell. In this embodiment, the mounting groove phase-match that sets up on supporting part 11 and the upper cover 5, when respiratory device was in storage and carrying state, supporting part 11 set up in the mounting groove of upper cover 5 to can seal the mounting groove, avoid external adverse circumstances to respiratory device internal component's damage.

The inner side of the supporting portion 11 is provided with a first breathing portion 111 and a second breathing portion 112, the first breathing portion 111 is communicated with the second breathing portion 112, the first breathing portion 111 is sleeved in the sealing portion 12 and is in butt joint with the mouth of a user for breathing, and the second breathing portion 112 is connected with a breathing pipe of a breathing device. In this embodiment, the first breathing part 111 is made of a hard material and has a cylindrical structure, and the second breathing part 112 is disposed at the lower end of the first breathing part 111, is made of a soft silica gel material, and is connected to the breathing tube 2.

Sealing portion 12 is the silica gel material preparation, and sealing portion 12's front end is provided with plane portion, is provided with through-hole 121 on the plane portion, and first breathing portion 111 cover is established in through-hole 121, and first breathing portion 111 is interference fit with through-hole 121, avoids taking off gauze mask 1 and the supporting part 11 and sealing portion 12 breaks away from in the use. In order to allow the mouth of the user to contact the first breathing part 111, the length of the first breathing part is greater than the thickness of the sealing part. The part of the sealing part 12 close to the nose is provided with a nose clip 122 which is used for clipping the nose when the breathing device is used, a user breathes by depending on the mouth, the side part of the sealing part 12 is provided with a pull rope 123 which is connected with a valve of the initial oxygen generating device 33, when the mask 1 is taken down from the breathing device, the valve of the initial oxygen generating device 33 is opened by the pull rope 123, so that the compressed oxygen in the initial oxygen generating device 33 is filled into the air bag 4, the structure is simple, and the operation is convenient.

When the second breathing part 112 is connected to the breathing tube 2, the second breathing part 112 does not extend into the sealing part 12 when passing through the sealing part 12 near the chin of the user. The mask 1 further comprises an elastic band, one end of the elastic band is arranged between the supporting portion 11 and the sealing portion 12, and the other end of the elastic band is worn on the head of a user to firmly fix the mask 1. In order to facilitate the mask 1 to be taken out, the outer contour of the support portion 11 is larger than the outer contour of the seal portion 12.

The breathing device also comprises a breathing tube 2, an oxygen generating part 3, an air bag 4, an upper cover 5 and an oxygen generating agent, wherein the oxygen generating part 3 comprises an oxygen generating tank 31, a three-way unit 32 and an initial oxygen generating device 33; one end of the breathing tube 2 is connected with the mask 1, the other end is connected with the oxygen generating tank 31 through the tee unit 32, the tee unit 32 and the initial oxygen generating device 33 are respectively connected with the air bag 4, the air bag 4 is connected with the oxygen generating tank 31, the oxygen generating agent is arranged in the oxygen generating tank 31, and the upper cover 5 covers the oxygen generating part 3.

In the embodiment, the breathing tube, the air bag and the oxygen generating tank are communicated by the three-way unit, and only one breathing tube is utilized to realize that gas exhaled by a human body enters the air bag through the oxygen generating tank and then directly enters the circulating oxygen generating system of the human body by bypassing the oxygen generating tank from the air bag, so that the traditional two-tube or three-tube structure for realizing circulating oxygen generating is simplified, the use process is more convenient, and the influence on the action of a user is less; meanwhile, the phenomenon that the temperature of the gas rises when the gas passes through the oxygen generating tank twice in the breathing process caused by reciprocating airflow is avoided, and the comfort level of oxygen inhalation is improved.

In this embodiment, the breathing tube 2 is a flexible hose so that the breathing apparatus can be bent and twisted during packaging and use.

The oxygen generating part 3 comprises an oxygen generating tank 31, a three-way unit 32, an initial oxygen generating device 33 and a connecting pipe 34, wherein the three-way unit 32 and the connecting pipe 34 are respectively arranged at two ends of the top of the oxygen generating tank 31, the initial oxygen generating device 33 is arranged between the three-way unit 32 and the connecting pipe 34, the three-way unit 32 is respectively connected with the breathing pipe 2, the oxygen generating tank 31 and the airbag 4, the initial oxygen generating device 33 is connected with the connecting pipe 34, and the connecting pipe 34 is respectively connected with the oxygen generating tank 31 and the airbag 4; in this embodiment, the three-way unit 32, the initial oxygen generating device 33 and the connection pipe 34 are provided on a symmetrical cross section of the oxygen generating tank 31.

The oxygen generating tank 31 is of a flat hemispherical structure and comprises an air inlet pipe 311, an air outlet pipe 312 and a partition 313, the air inlet pipe 311 and the air outlet pipe 312 are symmetrically arranged at two ends of the top of the oxygen generating tank 31, and the partition 313 is arranged inside the oxygen generating tank 311. In order to ensure that the oxygen generating agents at each part inside the oxygen generating tank 31 fully react, the partition plates 313 are arranged in the middle space corresponding to the air inlet pipe 311 and the air outlet pipe 312, a plurality of partition plates 313 are arranged at the top and the bottom of the oxygen generating tank 31, and in order to avoid the waste of the oxygen generating agents in the rest spaces caused by the fact that air only flows between the shortest connecting lines of the pipe openings of the air inlet pipe 311 and the air outlet pipe 312, the partition plates 313 are arranged in a vertically staggered mode.

In this embodiment, after flowing into the oxygen generating tank 31 from the air inlet pipe 311, the air with low oxygen concentration contacts with the oxygen generating agent along the process to react, and is converted into the air with high oxygen concentration, and flows out from the air outlet pipe 312, the baffle plates 313 arranged in a staggered manner from top to bottom make the air flow inside the oxygen generating tank 31 uniform, so as to ensure that the oxygen generating agent at each place can fully react, and the baffle plates 313 arranged in a staggered manner from top to bottom make the air flow into the oxygen generating tank 31 from the air inlet pipe 311 and then flow to the air outlet pipe 312 along a continuous S-shaped curve, so that the waste of the oxygen generating agent in the rest space caused by the fact that the air only flows between the shortest; meanwhile, the partition 313 contacts the wall surface of the oxygen generating tank 31, so that the heat inside the oxygen generating tank 31 can be conducted to the outer wall, and the internal reaction temperature can be reduced.

Considering that the oxygen generating tank 31 of the breathing apparatus generates a local high temperature due to heat release when oxygen is generated by the chemical oxygen method, which is likely to cause secondary damage to a user, the partition 313 is made of a heat pipe material in order to improve safety during the use of the breathing apparatus and further improve heat dissipation efficiency. The heat pipe is a heat transfer element which realizes heat transfer by depending on the phase change of working liquid in the heat pipe, fully utilizes the heat conduction principle and the rapid heat transfer property of a phase change medium, and quickly transfers the heat of a heating object to the outside of a heat source through the heat pipe, for example, the heat pipe is a copper-water heat pipe, a carbon steel-water heat pipe or a sodium heat pipe. Through the inside baffle 313 of making by the heat pipe material that sets up of oxygen generating tank 31, can conduct the wall to oxygen generating tank 31 with the inside heat of oxygen generating tank 31 rapidly, dispel the heat by radiation sleeve 35 again, reduced oxygen generating reaction temperature in the oxygen generating tank 31, the comfort level of temperature when having improved gas breathing has avoided the user to take place the problem of secondary damage because of inhaling high temperature gas.

In order to prevent the powder in the oxygen generating agent from flowing into the respiratory system of the human body to cause harm to the human body, a filter screen is arranged at the connecting position of the oxygen generating tank 31 and the air inlet pipe 311 and the air outlet pipe 312 respectively, specifically, the filter screen is made of a metal mesh and a quartz cotton piece, so that the phenomenon that the powder of the oxygen generating agent leaks through the air inlet pipe 311 and/or the air outlet pipe 312 in the storage process of the respiratory device to cause the damage of local high temperature to other parts or the stimulation to the respiratory system of the human body is.

In order to facilitate a user or an inspector to determine whether the oxygen generating agent fails or reaches the rated protection time and enable the user to intuitively master the residual protection time of the breathing device, the oxygen generating tank 31 is made of a transparent material, the material for manufacturing the oxygen generating tank 31 cannot react with the oxygen generating agent and is high-temperature resistant, and the transparent material has good thermal conductivity in order to facilitate the conduction of heat in the oxygen generating process; to meet certain industry standard specifications, illustratively, the coal industry, the oxygen generating tanks 31 are fabricated from a metallic material. In order to facilitate the observation of the state of the oxygen generating agent through the heat dissipation buffer holes 351 on the outer side heat insulation sleeve 35, the oxygen generating tank 31 is provided with an observation window, the observation window can be a strip-shaped single window or a dispersed point-shaped window, the distribution direction is consistent with the airflow direction, and the oxygen generating tank is sealed by glass.

In this embodiment, the color and the form change of the oxygen generating agent inside the oxygen generating tank 31 can be seen through the observation window, the oxygen generating agent is yellow when not reacting, the oxygen generating agent is white after completely reacting, and the reaction process is advanced along the airflow direction, so that whether the oxygen generating agent fails can be judged by observing the color of the oxygen generating agent through the observation window, and the safe and effective self-rescue breathing device is ensured. The edge of the observation window is provided with scale marks, and the residual protection time can be estimated in the use process through the scale marks at the edge of the observation window, so that a user can visually master the residual protection time of the breathing device, and the use safety of the self-rescue breathing device is ensured.

The three-way unit 32 comprises a first passage 321, a second passage 322 and a third passage 323, the first passage 321 is communicated with the second passage 322 to form a pipeline, and the third passage 323 is arranged on the pipeline communicated with the first passage 321 and the second passage 322; specifically, the first channel 321 and the second channel 322 are communicated to form a straight pipeline, the third channel 323 is vertically arranged in the middle of the straight pipeline communicated with the first channel 321 and the second channel 322, the three-way structure is convenient for the circular flow of gas, the expiration hose and the inspiration hose are combined into one hose, and the wearing structure is simplified; meanwhile, since the third channel 323 is perpendicular to the straight line channel formed by the first channel 321 and the second channel 322, compared with the arrangement at other angles, the structure occupies the minimum space, and the whole volume of the breathing device is reduced.

Specifically, the first passage 321 is connected with the breathing tube 2, a port of the first passage 321 is set to be a first stepped cylinder, the inner diameters of the first stepped cylinder are consistent, the outer diameter far away from the third passage 323 end is smaller than the outer diameter close to the third passage 323 end, the outer diameter of a small cylinder of the first stepped cylinder is equal to the inner diameter of a connector of the breathing tube 2, the first stepped cylinder is in interference fit with the connector of the breathing tube 2, and a sealing ring is sleeved on the outer side of the connecting position to avoid air leakage.

Specifically, the second channel 322 is connected with the air inlet pipe 311, a port of the second channel 322 is set to be a second stepped cylinder, the outer diameter of the second stepped cylinder is consistent, the inner diameter far away from the end of the third channel 323 is larger than the inner diameter close to the end of the third channel 323, the large inner diameter of the second stepped cylinder is equal to the outer diameter of the air inlet pipe 311, the second stepped cylinder is in interference fit with the air inlet pipe 311, and a sealing ring is sleeved on the outer side of the joint to avoid air leakage.

In order to avoid that the air with low oxygen concentration and the air with high oxygen concentration and high temperature in the oxygen generating tank 31 directly enter the breathing tube 2 from the air inlet tube 311 to cause injury to the user, the first one-way valve 3221 is arranged in the second channel 322, so that the air can only enter the oxygen generating tank 31 from the second channel 322 and cannot enter the second channel 322 from the oxygen generating tank 31 through the air inlet tube 311, and the safety of the breathing device in the using process is ensured.

Specifically, a quick connector 3231 is arranged at a port of the third channel 323, the third channel 323 is connected with an air outlet of the air bag 4 through the quick connector 3231, the port of the third channel 323 is set to be a third-step cylinder, the inner diameters of the third-step cylinder are consistent, the outer diameter far away from the straight-line pipeline end is smaller than the outer diameter close to the straight-line pipeline end, the outer diameter of a small cylinder of the third-step cylinder is equal to the inner diameter of an interface of the quick connector 3231, and the third-step cylinder is in interference fit with the interface of the quick connector 3231; a circumferential groove is formed in the large outer cylindrical surface of the third stepped cylinder, a circumferential clamping jaw is arranged at one end of the quick connector 3231, when the quick connector 3231 is connected with the third channel 323, the circumferential clamping jaw is clamped in the circumferential groove, and a sealing ring is sleeved outside the quick connector 3231 and the third channel 323 in a connecting mode, so that air leakage is avoided.

In order to avoid that the oxygen concentration of the fresh air in the air bag 4 is reduced because the air with low oxygen concentration in the three-way unit 3 enters the air bag 4, a second one-way valve 3232 is arranged in the quick connector 3231, and the air can only enter the three-way unit 3 from the air bag 4 but can not directly enter the air bag 4 from the three-way unit 3 through a third channel 323, so that the air bag 4 only contains the air with high oxygen concentration, and the safety of the breathing device in the use process is ensured.

It should be noted that a circular thin rubber pad is arranged at the other end of the quick connector 3231, and the rubber pad is bonded at the air outlet of the air bag 4 to form a closed air passage.

In this embodiment, the compressed oxygen is stored in the initial oxygen generating device 33, the initial oxygen generating device 33 is connected to the connecting pipe 34, and one end of the connecting pipe 34 is communicated with the air inlet of the air bag 4; because fresh air does not exist in the air bag 4 before the breathing apparatus is used, and a user feels stuffy due to no supply of the fresh air after wearing the mask 1, the valve of the initial oxygen generating device 33 is opened to charge the internal compressed oxygen into the air bag 4 in the initial wearing period of the breathing apparatus, so that the internal compressed oxygen is firstly used by the user, and the comfort level of the breathing apparatus during use is improved.

The connecting pipe 34 is arranged in an inverted L shape, one end of the connecting pipe 34 is arranged to be a fourth stepped cylinder connected with the air outlet pipe 312, and the other end is connected with the air inlet of the air bag 4; specifically, the outer diameters of the fourth stepped cylinders are consistent, the inner diameter close to the end of the air outlet pipe 312 is larger than the inner diameter far away from the end of the air outlet pipe 312, the large inner diameter of the fourth stepped cylinder is equal to the outer diameter of the air outlet pipe 312, the fourth stepped cylinder is in interference fit with the air outlet pipe 312, and a sealing ring is sleeved on the outer side of the joint to avoid air leakage; the other end of the connecting pipe 34 has a flange, which is bonded to the air inlet of the airbag 4 to form a closed air passage.

It should be noted that in order to make the compressed oxygen in the initial oxygen generator 33 directly fill the air bag 4, rather than enter the oxygen generating tank 31 through the outlet pipe 312, which results in the waste of the compressed oxygen or the blowing of the oxygen generating agent powder into the air bag 4 by the high-speed gas flow, the outlet end of the initial oxygen generator 33 forms a straight passage with one end of the connecting pipe 34 and the inlet of the air bag 4.

In order to avoid the heating and burning of the oxygen generating tank 31 to the human body of the breathing apparatus in the using process, the oxygen generating part 3 further comprises a heat insulation sleeve 35, the heat insulation sleeve 35 is sleeved on the outer side of the oxygen generating tank 31, the heat insulation sleeve 35 is made of soft materials, and exemplarily, the heat insulation sleeve 35 is made of porous rubber.

Further, in order to rapidly dissipate heat generated in the oxygen production process, the heat dissipation buffer hole 351 has been all opened to the front side surface and the bottom surface of the heat insulation sleeve 35, and the heat dissipation buffer hole 351 can rapidly dissipate heat inside the oxygen production tank 31, thereby reducing the breathing temperature and avoiding scalding the human body.

The setting of radiation shield 35 not only can play the radiating effect, can also play certain cushioning effect when producing oxygen jar 31 and receiving the striking, avoids producing the damaged dust that produces of oxygen agent of oxygen jar 31 inside, is unfavorable for the air fully reaction with low oxygen concentration, causes the waste of producing the oxygen agent, and the dust is simultaneously along with the air admission respiratory track easily, causes the injury for the user.

It should be noted that the top of the oxygen generating tank 31 is provided with two neck strap rings, which are respectively located at the outer sides of the air inlet 311 and the air outlet 312, and the neck strap rings are connected with the neck strap, so that the breathing apparatus can be hung in front of the chest of a human body for use, the operation is convenient, the occupied space is small, and the action of a user is not affected.

In the embodiment, the check valves are arranged at the second channel 322 and the third channel 323, the first channel 321 is connected with the breathing tube 2, the second channel 322 is connected with the air inlet tube 311, the air outlet tube 312 is connected with one end of the connecting tube 34, the other end of the connecting tube 34 is connected with the air inlet of the air bag 4, and the air outlet of the air bag 4 is connected with the third channel 323; when a human body exhales, the low-oxygen-concentration gas exhaled by the user flows through the second channel 322 and the air inlet pipe 311 from the first channel 321 to enter the oxygen generating tank 31, the gas reacts with an oxygen generating agent in the oxygen generating tank 31 to generate fresh air, and the fresh air enters the air bag 4 through the air outlet pipe 312, the connecting pipe 34 and the air inlet; when a human body inhales, fresh air in the air bag 4 enters the three-way unit 32 through the air outlet and the quick connector 3231, finally enters the first channel 321, and is supplied to a user for breathing through the breathing tube 2.

In this embodiment, only utilize a respiratory tube 2 to realize the gaseous menstruation oxygen production jar 31 entering gasbag 4 of human exhalation promptly, bypass oxygen production jar 31 directly to get into human respiratory's circulating oxygen production from gasbag 4 again, the structure of circulating oxygen production has been realized to traditional two pipes or three tubular, the use is more convenient, it is littleer to user's action influence, the problem of producing the twice heating gas of oxygen agent in the reciprocating type gas circuit product has been avoided simultaneously, the comfort level of breathing has been improved.

In the embodiment, under the shunting and guiding action of the first one-way valve, the waste gas exhaled by the human body can only flow into the oxygen generating tank after entering the three-way pipe, and the waste gas in the oxygen generating tank reacts again to become fresh air which flows into the air bag through the air outlet pipe; fresh air flows to the air outlet from the air inlet of the air bag and enters the three-way pipe from the air outlet, the fresh air flows into the breathing pipe for breathing under the action of the second one-way valve when a human body inhales, and gas in the oxygen generating tank cannot directly enter the breathing pipe. Through the internal airflow direction switching of the three-way unit, the purpose that one breathing tube replaces an expiratory tube and an inspiratory tube and the gas circulation regeneration is achieved.

The air bag 4 is in a U-shaped structure after being inflated, the oxygen generating part 3 is embedded in the U-shaped space, so that the main body of the breathing device is distributed in front of the chest, and the folded structure is small and exquisite, and is more comfortable and convenient to wear and use; the air bag 4 comprises an air inlet and an air outlet, the air stroke between the air inlet and the air outlet is long, the air can be fully radiated, the temperature of the air sucked by a human body is low, and the experience is comfortable; the air bag 4 is provided with a reflective mark, so that trapped people can be easily found by rescue workers; the two sides of the air bag 4 are provided with the waistbands, so that the air bag 4 can be fixed in front of the chest of a human body, the air bag 4 can not be separated from the trunk of the human body in the process of movement or stooping, and the use is convenient.

The air bag 4 is also provided with a one-way pressure relief valve, when the pressure of the gas in the air bag 4 reaches a specified value, the one-way pressure relief valve is opened, the air in the air bag 4 is discharged to the outside, but the outside air cannot enter the air bag; when the pressure in the air bag 4 is recovered to be within the specified value, the one-way pressure release valve is automatically closed, and the pressure release is stopped. When the pressure in the air bag 4 is overlarge, the one-way pressure release valve automatically discharges redundant gas to the outside, so that a user can wear the air bag comfortably.

In this embodiment, when respiratory device is in the packing state, gauze mask 1, breathing tube 2, gasbag 4 all place in producing 3 tops of oxygen portion, are wrapped up by upper cover 5 and are cramped with producing oxygen jar 31, and upper cover 5 is flat hemisphere, and upper cover 5 and producing oxygen jar 31 make the product be the cake form under the storage state.

A sealing ring is arranged at the joint of the upper cover 5 and the oxygen generating tank 31 to ensure that all components are not influenced by the outside in a storage state and the oxygen generating agent is not invalid due to exposure; the edge of the upper cover 5 is an h-shaped opening 51, the sealing rubber ring is embedded in the h-shaped opening 51, the wall surface of the oxygen generating tank 31 extends upwards at the edge of the upper cover 5, the tail end of the oxygen generating tank is outwards turned, and the oxygen generating tank is inserted into the h-shaped opening 51 of the upper cover 5 to be tightly pressed with the sealing ring during sealing; the outer surface of the upper cover 5 is provided with a buffer sleeve 52, the buffer sleeve 52 is made of materials such as soft silica gel and the like, the buffer sleeve 52 and the soft heat insulation sleeve 35 on the outer surface of the oxygen generating tank 31 play a role of product anti-collision buffer, the buffer sleeve 52 is provided with a slotted hole 521, and the slotted hole 521 and the heat dissipation buffer hole 351 are symmetrical about the cross section of the breathing device, so that the appearance of the product in a packaging state is attractive. The upper cover 5 is also provided with an installation groove equipped with the support portion 11.

In order to facilitate the fixing of the upper cover 5, the oxygen generating tank 31 is further provided with quick-release retaining rings 313, the quick-release retaining rings 313 are arranged on two sides of the oxygen generating tank 31, and specifically, the quick-release retaining rings 313 are arranged in two and symmetrically arranged on the front and back of the oxygen generating tank 31. When upper cover 5 is connected with oxygen generating tank 31, the both ends of packing clamp 53 hang with quick detach buckle 313 and buckle, cramp upper cover 5, and packing clamp 53 sets up on gauze mask 1, has avoided breaking away from of gauze mask 1, and when needs used respiratory device, the connection position of opening quick detach buckle and packing clamp can get into user state convenient and fast.

In order to facilitate the carrying of the breathing device when not in use, the back of the breathing device is provided with a waistband 6, the waistband 6 is connected with a quick-release buckle 313, the breathing device is convenient to carry around when being carried around the waist, and the waistband is provided with a heat insulation pad to prevent the heat generated by the breathing device from scalding a user.

Breathing device is under storage state, and the mouth of pipe of first connecting portion 111 is equipped with the sealing plug, and the sealing membrane has been pasted in the one-way relief valve outside of gasbag 4, and sealing plug and sealing membrane all are connected to upper cover 5 through the rope, and breathing device opens the automatic upper cover that drops along with of back sealing plug and sealing membrane, and breathing device gets into available state immediately.

The utility model discloses a portable mining breathing device conveniently carries the use, experiences comfortablely, and whether can audio-visual definite oxygen production agent became invalid simultaneously, the gauze mask has reduced breathing device's volume as breathing device shells's partly, has reduced the wasting of resources.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention.

Claims

1. The portable mining breathing device is characterized by comprising a mask (1), wherein the mask (1) comprises a supporting part (11) and a sealing part (12); the supporting part (11) is arranged on the outer side of the sealing part (12) and is used for supporting the sealing part (12), and the sealing part (12) is used for being attached to the face and covering the mouth of a user; the support (11) is part of the packaging shell of the respirator;

the sealing portion (12) includes a nose clip (122), the nose clip (122) for clipping a nose of a user.

2. The portable mining breathing device according to claim 1, wherein the support portion (11) is disposed within and capable of sealing a mounting groove of a respirator upper cover.

3. The portable mining breathing device according to claim 1, wherein the front end of the sealing portion (12) is provided with a flat portion on which a through hole (121) is provided.

4. The portable mining breathing device according to claim 1, wherein the nose clip (122) is disposed on the sealing portion (12) near the nose.

5. The portable mining breathing device according to claim 3, wherein the support portion (11) is provided with a first breathing portion (111) and a second breathing portion (112), the first breathing portion (111) and the second breathing portion (112) being in communication.

6. The portable mining breathing device according to claim 5, characterized in that the first breathing portion (111) is arranged at the lower end of the second breathing portion (112).

7. The portable mining breathing device according to claim 6, wherein the first breathing portion (111) is nested within the sealing portion (12) and interfaces with the mouth of the user.

8. The portable mining breathing device according to claim 7, wherein the second breathing portion (112) is connected with a breathing tube of a breathing device.

9. The portable mining breathing device according to claim 8, wherein the first breathing portion (111) is nested within the through hole (121).

10. The portable mining breathing device according to any one of claims 1-9, wherein the mask (1) further comprises an elastic band, one end of the elastic band is interposed between the support portion (11) and the sealing portion (12), and the other end is adapted to be worn by a user.