CN217645643U

CN217645643U - Breathing device for closed loop

Info

Publication number: CN217645643U
Application number: CN202220517104.XU
Authority: CN
Inventors: 高钰琪; 王懋; 陈建; 李鹏; 徐刚; 王伟; 时新松
Original assignee: Third Military Medical University TMMU
Current assignee: Anhui Lijian Defense Technology Co ltd
Priority date: 2022-03-10
Filing date: 2022-03-10
Publication date: 2022-10-25
Anticipated expiration: 2032-03-10

Abstract

The utility model discloses a be used for closed return circuit respiratory device, including the pipeline subassembly, pipeline subassembly one side sets up installs the storage subassembly, and the piston assembly is installed to the inside setting of pipeline subassembly, and pipeline subassembly week side sets up installs spacing subassembly, and the pipeline subassembly includes straight tube, lower straight tube, exhales through the pipe, inhales through the pipe. The utility model discloses a system loop input interface is with the human exhalation in introducing the gas purification subassembly by gas input channel, purify the gas channel and have enough big flow area, will purify the back gas and send into in the gas storage part that purifies. Under the action of negative pressure generated when a human body inhales, purified gas stored in the purified gas storage component enters the mixing cavity, meanwhile, a proper amount of fresh air is introduced to be mixed with the purified gas, the oxygen concentration of the mixed gas is monitored in real time through the oxygen concentration sensor to meet the specified requirement, the mixed gas enters the breathing device through the output interface of the system loop to be inhaled by the human body, and the operation of the human body exhalation air pressure driving device is realized.

Description

Breathing device for closed loop

Technical Field

The utility model belongs to the breathing equipment field especially relates to a be used for closed return circuit respiratory device.

Background

The closed loop breathing system has the advantages of simple structure, few accessories of a matching part, no need of any power device for support, complete autonomous regeneration and cyclic breathing and the like, and is increasingly paid more attention by people.

In technical principle, the closed-loop breathing system provides power for regeneration circulation by relying on autonomous respiration of a human body, so that the technology for realizing the basic functions of the system is mature. However, in engineering practice, there are various factors affecting the performance of the system, wherein, typically, the problem of system airtightness is solved, the system circuit cannot establish and maintain good sealing performance, and it is hard to imagine whether the function of the closed-circuit breathing system can be truly exhibited. We have therefore improved this by proposing a breathing apparatus for closed circuit.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the above problem that prior art exists, provide a be used for closed return circuit respiratory device, introduce the gas purification subassembly with human exhalation through system's return circuit input interface by gas input channel in, purify the gas channel and have enough big flow area, will purify the back gas and send into in purifying gas storage part. Under the action of negative pressure generated when a human body inhales, purified gas stored in the purified gas storage component enters a mixing cavity, simultaneously, a proper amount of fresh air is introduced to be mixed with the purified gas, the oxygen concentration of the mixed gas is monitored in real time by an oxygen concentration sensor to meet the specified requirement, and the mixed gas enters a breathing device from an output interface of a system loop for the human body to inhale.

For realizing above-mentioned technical purpose, reach above-mentioned technological effect, the utility model discloses a following technical scheme realizes:

a breathing device for a closed loop comprises a pipeline assembly, wherein a storage assembly is arranged on one side of the pipeline assembly, a piston assembly is arranged in the pipeline assembly, and a limiting assembly is arranged on the periphery of the pipeline assembly;

the pipeline assembly comprises an upper straight pipe, a lower straight pipe, an expiration passing pipe and an inspiration passing pipe, wherein a through mounting hole is formed in the end face of the upper straight pipe, a first expiration hole is formed in the peripheral side of the upper straight pipe, a first inspiration hole is formed in the peripheral side of the upper straight pipe and positioned below the first expiration hole, a piston hole is formed in the top end of the lower straight pipe, a second inspiration hole is formed in the peripheral side of the lower straight pipe and positioned below the second inspiration hole, an inspiration hole is formed in the peripheral side of the lower straight pipe and positioned at the back of the second inspiration hole, an expiration hole is formed in the peripheral side of the lower straight pipe and positioned below the inspiration hole, a through sliding groove is formed in the peripheral side of the lower straight pipe, one end of the expiration passing pipe is fixedly connected with the first expiration hole, the other end of the expiration passing pipe is fixedly connected with the second hole, one end of the inspiration passing pipe is fixedly connected with the first inspiration hole, the other end of the inspiration passing pipe is fixedly connected with the second inspiration hole, and the top end of the upper expiration passing pipe is fixedly connected with a face mask;

the piston assembly comprises a piston rod and symmetrically arranged fixing rings, wherein a projecting ring in sliding fit with the mounting hole is fixedly connected to the periphery of the piston rod, a communicating hole is formed in the periphery of the piston rod below the projecting ring, a hole expanding in clearance fit with a first spring is formed in the end face of each fixing ring, the periphery of each fixing ring is fixedly connected with the periphery of the mounting hole, the periphery of the piston rod is symmetrically and movably sleeved with the first spring above and below the projecting ring, one end of the first spring is in contact connection with the fixing ring, and the other end of each fixing ring is in contact connection with the projecting ring;

spacing subassembly includes the sliding block, the sideslip pole, the wedge, the bracing piece, the sliding block passes through spout and straight tube sliding connection down, sliding block one end and piston rod week side fixed connection, the sliding block other end is located down the straight tube outside set up with sideslip pole sliding connection's slip hole, sideslip pole both ends fixedly connected with stroke dish, the wedge is preceding set up with bracing piece sliding connection's rounding off hole, rounding off hole week side fixedly connected with protrusion strip, bracing piece one end and straight tube week side fixed connection down, bracing piece week side set up with protrusion strip sliding fit's sliding tray, bracing piece week side movable sleeve is equipped with the second spring.

Furthermore, the storage assembly comprises a storage tank, one side of the storage tank is fixedly connected with an expiration straight pipe fixedly connected with an expiration pipe hole, one side of the storage tank is positioned above the expiration straight pipe and is fixedly connected with an inspiration straight pipe fixedly connected with an inspiration pipe hole, and the top end of the storage tank is provided with a fresh air port.

Furthermore, the top end of the lower straight pipe is fixedly connected with the bottom end of the upper straight pipe, and the diameter of the mounting hole is larger than that of the piston hole.

Further, the piston rod is in sliding fit with the piston hole.

Furthermore, one end of the second spring is in contact connection with the wedge block, and the other end of the second spring is in contact connection with the lower straight pipe.

The utility model has the advantages that: the breathing device for the closed loop introduces the exhaled air of a human body into the gas purification assembly through the gas input channel through the input interface of the system loop, the purified gas channel has a large enough flow area, and the purified gas is sent into the purified gas storage component. Under the action of negative pressure generated when a human body inhales, purified gas stored in the purified gas storage component enters the mixing cavity, meanwhile, a proper amount of fresh air is introduced to be mixed with the purified gas, the oxygen concentration of the mixed gas is monitored in real time through the oxygen concentration sensor to meet the specified requirement, the mixed gas enters the breathing device through the output interface of the system loop to be inhaled by the human body, and the operation of the human body exhalation air pressure driving device is realized.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:

fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is an enlarged view of a portion of the structure of the present invention;

fig. 3 is a partial structural sectional view of the present invention;

FIG. 4 is an exploded view of the local structure of the present invention;

FIG. 5 is an exploded view of the local structure of the present invention;

fig. 6 is a flow chart of the present invention.

In the figure: 1. a tubing assembly; 11. feeding a straight pipe; 111. mounting holes; 112. a first exhalation vent; 113. a first air-intake hole; 12. a straight pipe is put; 121. a piston bore; 122. a second suction hole; 123. a second exhalation vent; 124. a suction pipe hole; 125. an expiratory tube orifice; 126. passing through the chute; 13. the breath passes through the tube; 14. the suction gas passes through the tube; 15. a face mask; 2. a storage assembly; 21. a storage tank; 211. an expiratory straight tube; 212. a straight air suction pipe; 213. a fresh air port; 3. a piston assembly; 31. a piston rod; 311. a projecting ring; 312. a communicating hole; 32. a fixing ring; 321. reaming; 33. a first spring; 4. a limiting component; 41. a slider; 411. a slide hole; 42. a horizontal sliding rod; 421. a stroke disc; 43. a wedge block; 431. a smooth hole; 4311. a protruding strip; 44. a support bar; 441. a sliding groove; 45. a second spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "open hole", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around", and the like, indicate positional or positional relationships, are merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

As shown in fig. 1 and fig. 2, the breathing device for the closed loop comprises a pipeline assembly 1, a storage assembly 2 is arranged and installed on one side of the pipeline assembly 1, a piston assembly 3 is arranged and installed inside the pipeline assembly 1, a limiting assembly 4 is arranged and installed on the periphery of the pipeline assembly 1, the storage assembly 2 comprises a storage tank 21, an expiration straight pipe 211 fixedly connected with an expiration pipe hole 125 is fixedly connected on one side of the storage tank 21, an inspiration straight pipe 212 fixedly connected with an inspiration pipe hole 124 is fixedly connected above the expiration straight pipe 211 on one side of the storage tank 21, a fresh air hole 213 is arranged and installed on the top end of the storage tank 21, the top end of a lower straight pipe 12 is fixedly connected with the bottom end of an upper straight pipe 11, and the diameter of the installation hole 111 is larger than the diameter of the piston hole 121.

As shown in fig. 3, the pipeline assembly 1 includes an upper straight pipe 11, a lower straight pipe 12, an exhalation passing pipe 13, and an inhalation passing pipe 14, wherein a through mounting hole 111 is formed in an end surface of the upper straight pipe 11, a first exhalation hole 112 is formed in a circumferential side of the upper straight pipe 11, a first inhalation hole 113 is formed in a circumferential side of the upper straight pipe 11 below the first exhalation hole 112, a piston hole 121 is formed in a top end of the lower straight pipe 12, a second inhalation hole 122 is formed in a circumferential side of the lower straight pipe 12, a second exhalation hole 123 is formed in a circumferential side of the lower straight pipe 12 below the second inhalation hole 122, an inhalation hole 124 is formed in a circumferential side of the lower straight pipe 12 below the inhalation hole 124, an exhalation hole 125 is formed in a circumferential side of the lower straight pipe 12, a passing chute 126 is formed in a circumferential side of the lower straight pipe, an exhalation passing pipe 13 is fixedly connected to the first exhalation hole 112, an exhalation passing pipe 13 is fixedly connected to the second exhalation hole 123, one end of the inhalation passing pipe 14 is fixedly connected to the first inhalation hole 113, the other end of the inhalation passing pipe 14 is fixedly connected to the second inhalation hole 122, and a face mask 15 is fixedly connected to a top end of the upper straight pipe 11.

As shown in fig. 4, the piston assembly 3 includes a piston rod 31 and fixing rings 32 symmetrically disposed, a protruding ring 311 slidably fitted in the mounting hole 111 is fixedly connected to the circumferential side of the piston rod 31, a communicating hole 312 is formed in the circumferential side of the piston rod 31 below the protruding ring 311, a counterbore 321 loosely fitted with a first spring 33 is formed in the end face of the fixing ring 32, the circumferential side of the fixing ring 32 is fixedly connected to the inner circumferential side of the mounting hole 111, a first spring 33 is symmetrically movably sleeved on the circumferential side of the piston rod 31 above and below the protruding ring 311, one end of the first spring 33 is in contact connection with the fixing ring 32, the other end of the fixing ring 32 is in contact connection with the protruding ring 311, and the piston rod 31 is slidably fitted in the piston hole 121.

As shown in fig. 5, the limiting component 4 includes a sliding block 41, a transverse sliding rod 42, a wedge 43, and a supporting rod 44, the sliding block 41 is slidably connected to the lower straight tube 12 through a sliding slot 126, one end of the sliding block 41 is fixedly connected to the periphery of the piston rod 31, the other end of the sliding block 41 is located outside the lower straight tube 12 and is provided with a sliding hole 411 slidably connected to the transverse sliding rod 42, two ends of the transverse sliding rod 42 are fixedly connected to a stroke disc 421, a smooth hole 431 slidably connected to the supporting rod 44 is formed in the front of the wedge 43, a protruding strip 4311 is fixedly connected to the periphery of the smooth hole 431, one end of the supporting rod 44 is fixedly connected to the periphery of the lower straight tube 12, a sliding groove 441 slidably engaged with the protruding strip 4311 is formed in the periphery of the supporting rod 44, a second spring 45 is movably sleeved on the periphery of the supporting rod 44, one end of the second spring 45 is connected to the wedge 43, and the other end of the second spring 45 is connected to the lower straight tube 12.

As shown in fig. 6, the exhaled human body gas is introduced into the gas purification assembly through the gas input channel via the system loop input interface, and the purified gas channel has a sufficiently large flow area to deliver the purified gas into the purified gas storage means. Under the action of negative pressure generated when a human body inhales, purified gas stored in the purified gas storage component enters a mixing cavity, simultaneously, a proper amount of fresh air is introduced to be mixed with the purified gas, the oxygen concentration of the mixed gas is monitored in real time by an oxygen concentration sensor to meet the specified requirement, and the mixed gas enters a breathing device from an output interface of a system loop for the human body to inhale.

The utility model discloses in, put face guard 15 to oronasal department, during expiration, atmospheric pressure drives piston rod 31 and moves down, intercommunicating pore 312 moves down and second expiration hole 123, expiration pipe hole 125 switch-on, expired gas advances face guard 15 in proper order, go up straight tube 11, expiration passes through pipe 13, straight tube 12 down, expiration straight tube 211, storage tank 21, during inspiration, atmospheric pressure drives piston rod 31 and moves up, intercommunicating pore 312 moves up and communicates with second inspiration hole 122, inspiration pipe hole 124, inspired gas passes through storage tank 21 in proper order, expiration straight tube 211, straight tube 12 down, inspiration passes through pipe 14, go up straight tube 11, face guard 15, under the negative pressure effect that produces when the human body breathes in, the purified gas that stores in storage module 2 gets into mixed cavity, introduce right amount new trend and its mixture simultaneously, it accords with the specified requirement to monitor mixed gas oxygen concentration in real time through oxygen concentration sensor, the mixture gets into breathing apparatus by the human body and supplies the human body slide bar 42 to inhale in the breathing apparatus, move cross bar 42 to between wedge 43, wedge 41 card can contact with the inclined plane and drive the slide bar 43 to move down when the wedge 42, the one-way slide bar outside can realize the slide bar outside and reset spring, the slide bar spring when the wedge spring 44.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing shows and describes the basic principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.

Claims

1. The breathing device for the closed loop is characterized by comprising a pipeline assembly (1), wherein one side of the pipeline assembly (1) is provided with a storage assembly (2), a piston assembly (3) is arranged in the pipeline assembly (1), and a limiting assembly (4) is arranged on the periphery of the pipeline assembly (1);

the pipeline component (1) comprises an upper straight pipe (11), a lower straight pipe (12), an expiration passing pipe (13) and an inspiration passing pipe (14), the end face of the upper straight pipe (11) is provided with a through mounting hole (111), the periphery of the upper straight pipe (11) is provided with a first expiration hole (112), the periphery of the upper straight pipe (11) is positioned below the first expiration hole (112) and is provided with a first inspiration hole (113), the top end of the lower straight pipe (12) is provided with a piston hole (121), the periphery of the lower straight pipe (12) is provided with a second inspiration hole (122), the periphery of the lower straight pipe (12) is positioned below the second inspiration hole (122) and is provided with a second expiration hole (123), the periphery of the lower straight pipe (12) is positioned at the back of the second inspiration hole (122) and is provided with an inspiration hole (124), the periphery of the lower straight pipe (12) is provided with an expiration through chute (126), one end of the expiration through pipe (13) is fixedly connected with the first expiration hole (112), the other end of the expiration through pipe (13) is fixedly connected with the second expiration through hole (123), one end of the inspiration through pipe (14) is fixedly connected with the first inspiration hole (113), the other end of the expiration through pipe (14) is fixedly connected with the second inspiration hole (122), and the top end of the upper straight pipe (11) is fixedly connected with the upper face mask (15);

the piston assembly (3) comprises a piston rod (31) and fixing rings (32) which are symmetrically arranged, wherein a protruding ring (311) which is in sliding fit with the mounting hole (111) is fixedly connected to the peripheral side of the piston rod (31), a communicating hole (312) is formed in the peripheral side of the piston rod (31) and located below the protruding ring (311), a reaming hole (321) which is in clearance fit with a first spring (33) is formed in the end face of each fixing ring (32), the peripheral side of each fixing ring (32) is fixedly connected with the inner peripheral side of the mounting hole (111), first springs (33) are symmetrically and movably sleeved on the peripheral side of the piston rod (31) and located above and below the protruding ring (311), one end of each first spring (33) is in contact connection with the corresponding fixing ring (32), and the other end of each fixing ring (32) is in contact connection with the corresponding protruding ring (311);

spacing subassembly (4) include sliding block (41), sideslip pole (42), wedge (43), bracing piece (44), sliding block (41) are through spout (126) and lower straight tube (12) sliding connection, all sides fixed connection of sliding block (41) one end and piston rod (31), sliding block (41) other end is located down straight tube (12) outside and sets up slide opening (411) with sideslip pole (42) sliding connection, sideslip pole (42) both ends fixedly connected with stroke dish (421), preceding slick and sly hole (431) of setting up with bracing piece (44) sliding connection of wedge (43), slick and sly hole (431) all sides fixed connection has protruding strip (4311), bracing piece (44) one end and straight tube (12) all sides fixed connection down, all sides of bracing piece (44) set up with protruding strip (4311) week side sliding fit's sliding tray (441), bracing piece (44) activity cover is equipped with second spring (45).

2. The breathing device for the closed circuit according to claim 1, wherein the storage assembly (2) comprises a storage tank (21), an exhalation straight pipe (211) fixedly connected with the exhalation pipe hole (125) is fixedly connected to one side of the storage tank (21), an inhalation straight pipe (212) fixedly connected with the inhalation pipe hole (124) is fixedly connected to one side of the storage tank (21) above the exhalation straight pipe (211), and a fresh air port (213) is arranged at the top end of the storage tank (21).

3. A breathing device for closed circuits according to claim 1, characterised in that the upper end of the lower straight tube (12) is fixedly connected to the lower end of the upper straight tube (11), the diameter of the mounting hole (111) being greater than the diameter of the piston hole (121).

4. A breathing apparatus for closed circuit according to claim 1, wherein the piston rod (31) is a sliding fit with the piston bore (121).

5. A breathing device for closed circuits according to claim 1, characterised in that said second spring (45) is connected with one end in contact with the wedge-shaped block (43) and with the other end of the second spring (45) in contact with the lower straight tube (12).