CN210778396U

CN210778396U - Positive pressure oxygen respirator low-voltage switch

Info

Publication number: CN210778396U
Application number: CN201920381688.0U
Authority: CN
Inventors: 王成
Original assignee: Huaibei Mining Co Ltd
Current assignee: Huaibei Mining Co Ltd
Priority date: 2019-03-25
Filing date: 2019-03-25
Publication date: 2020-06-16
Anticipated expiration: 2029-03-25

Abstract

The utility model is suitable for the technical field of oxygen respirators, and provides a positive pressure oxygen respirator low-voltage switch, which comprises a shell component, a lower cover plate and a connecting pipe, wherein the lower cover plate is connected below the upper cover plate, and the connecting pipe is fixedly connected at the top end of the upper cover plate; the ventilation assembly comprises a machine body, an air inlet pipe, an exhaust pipe, a first through pipe, a second through pipe and a sealing sleeve, wherein the machine body is fixedly connected inside the lower cover plate; the first membrane and the second membrane are arranged to be the same as the machine body in model, the thickness of the first membrane and the thickness of the second membrane are larger than 0.05 mm, and after the first membrane and the second membrane pass through high-pressure airflow, the first membrane and the second membrane cannot be easily damaged or can not be automatically attracted with a contact, so that the whole display and alarm system can normally operate, the threat to emergency rescue is reduced, and meanwhile, the maintenance cost of a machine is saved.

Description

Positive pressure oxygen respirator low-voltage switch

Technical Field

The utility model belongs to the technical field of the oxygen respirator, especially, relate to a malleation oxygen respirator low-voltage switch.

Background

Oxygen respirators are also known as isolated compressed oxygen respirators. The respiratory system is isolated from the outside, the instrument forms internal circulation with the respiratory system of human body, the high-pressure gas cylinder provides oxygen, the air bag stores gas during breathing and inhaling, the gas is introduced from the past Soviet Union in the 50 s, the respiratory protection product is a respiratory protection product which is produced for decades and has wide range, the performance is stable and reliable, and the respiratory protection product is widely applicable to industries (departments) such as petroleum, chemical industry, metallurgy, coal, mine, laboratory and the like and is used for people specially trained to carry out emergency rescue, accident treatment, rescue or operation in toxic and harmful gas environment (common atmospheric pressure).

As all the positive pressure oxygen respirators of the rescue team are German Delger technology, the positive pressure oxygen respirator is needed to be repaired by returning to the factory when the positive pressure oxygen respirator breaks down. The 243 respirators currently used by the rescue team often have the phenomena that an electronic system is not powered off and a display is not powered off, the respirator needs to be returned to the factory for maintenance, and the electronic alarm display system needs to be replaced, and the cost of each respirator reaches more than 2.2 ten thousand yuan. Through the public key research of the technical group of the combat training department of the ambulance squad, the system is found to be not powered off and the display is mostly caused by the failure of the low-voltage switch in the host.

SUMMERY OF THE UTILITY MODEL

The utility model provides a malleation oxygen breathing apparatus low pressure switch aims at solving because the whole technologies of rescue team malleation oxygen breathing apparatus are German Delger technique to but the malleation oxygen breathing apparatus breaks down and must take the method of returning the factory to maintain to solve. The 243 respirators currently used by the rescue team often have the phenomena that an electronic system is not powered off and a display is not powered off, the respirator needs to be returned to the factory for maintenance, and the electronic alarm display system needs to be replaced, and the cost of each respirator reaches more than 2.2 ten thousand yuan. Through the public key research of the technical group of the combat training department of the ambulance squad, the problems that the system is not powered off and the display is not powered off are mostly caused by the failure of the low-voltage switch in the host.

The utility model is realized in such a way, the positive pressure oxygen respirator low-voltage switch comprises a shell component, a ventilation component and a switch component, wherein the shell component comprises an upper cover plate, a lower cover plate and a connecting pipe; the ventilation assembly comprises a machine body, an air inlet pipe, an exhaust pipe, a first through pipe, a second through pipe and a sealing sleeve, the machine body is fixedly connected inside the lower cover plate, the air inlet pipe is fixed to one side of the lower cover plate, the exhaust pipe is fixed to one side, away from the air inlet pipe, of the lower cover plate, the first through pipe is fixed to one side of the machine body, the second through pipe is fixed to one side, away from the first through pipe, of the machine body, the sealing sleeve is located between the air inlet pipe and the first through pipe, one end of the sealing sleeve is fixedly connected with the air inlet pipe, and the other end of the sealing sleeve is fixedly connected with the first through; the switch assembly comprises an electric plate, a sliding rod, a first membrane, a second membrane and a contact, wherein the electric plate is fixed inside the machine body, the sliding rod is fixed on the electric plate, the sliding rod is connected with the first membrane and the second membrane in a sliding mode, the first membrane and the second membrane are respectively located at the upper end and the lower end of the sliding rod, a spring is installed on the sliding rod, one end of the spring is fixed on the upper surface of the electric plate, one end of the spring is fixed on the lower surface of the first membrane, and the upper surface of the electric plate is fixed with the contact and located on one side of the sliding rod.

The utility model discloses still provide preferred, casing assembly still includes logical groove and nut, the edge of upper cover plate and lower apron has been seted up respectively logical groove, just the upper cover plate passes through the nut with logical groove on the apron can be dismantled the connection down.

The utility model discloses still provide preferred, housing assembly still includes the cardboard, the last fixed surface of upper cover plate has the cardboard.

The utility model discloses still provide preferred, first siphunculus with the wave line has been seted up on the surface of second siphunculus.

The utility model discloses still provide preferred, the subassembly of ventilating still includes the pivot, the intake pipe passes through the pivot with apron rotates to be connected down.

The utility model discloses still provide preferred, the switch module still includes the stopper, the top and the bottom mounting of slide bar have the stopper.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a malleation oxygen respirator low pressure switch, the model through setting up first diaphragm and second diaphragm is the same with the model of organism, and the thickness of first diaphragm and second diaphragm is greater than 0.05 millimeter, after first diaphragm and second diaphragm pass through at high-pressure draught, can not damage easily or cause independently the actuation with the contact, thereby make whole demonstration and alarm system normal operating, the threat to rescue and cause has been reduced, the maintenance cost of machine has also been saved simultaneously.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the overall internal structure of the present invention;

FIG. 3 is a schematic view of the internal structure of the middle body of the present invention;

FIG. 4 is a schematic view of the internal opening structure of the middle body of the present invention;

in the figure: the air conditioner comprises a shell assembly, an upper cover plate 11, a lower cover plate 12, a connecting pipe 13, a through groove 14, a nut 15, a clamping plate 16, a ventilation assembly 2, a machine body 21, an air inlet pipe 22, an air outlet pipe 23, a first through pipe 24, a second through pipe 25, a sealing sleeve 26, a rotating shaft 27, a switch assembly 3, an electric plate 31, a sliding rod 32, a first membrane 33, a second membrane 34, a contact 35, a spring 36 and a limiting block 37.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a malleation oxygen respirator low pressure switch, includes housing assembly 1, subassembly 2 and the switch module 3 of ventilating, and housing assembly 1 includes upper cover plate 11, lower cover plate 12 and connecting pipe 13, and the below of upper cover plate 11 is connected with lower cover plate 12, and the top fixedly connected with connecting pipe 13 of upper cover plate 11.

Subassembly 2 ventilates includes organism 21, intake pipe 22, blast pipe 23, first siphunculus 24, second siphunculus 25 and seal cover 26, the inside fixed connection organism 21 of lower apron 12, one side of lower apron 12 is fixed with intake pipe 22, one side that intake pipe 22 was kept away from to lower apron 12 is fixed with blast pipe 23, one side of organism 21 is fixed with first siphunculus 24, one side that first siphunculus 24 was kept away from to organism 21 is fixed with second siphunculus 25, seal cover 26 is located the centre department of intake pipe 22 and first siphunculus 24, and one end and intake pipe 22 fixed connection, one end and first siphunculus 24 fixed connection.

Switch module 3 includes electroplax 31, slide bar 32, first diaphragm 33, second diaphragm 34 and contact 35, the inside of organism 21 is fixed with electroplax 31, be fixed with slide bar 32 on the electroplax 31, sliding connection has first diaphragm 33 and second diaphragm 34 on the slide bar 32, and first diaphragm 33 and second diaphragm 34 are located slide bar 32 upper and lower both ends respectively, install spring 36 on the slide bar 32, and the upper surface at electroplax 31 is fixed to spring 36 one end, the lower surface at first diaphragm 33 is fixed to one end, the last fixed surface of electroplax 31 has contact 35, and be located one side of slide bar 32.

In this embodiment, the upper cover plate 11 and the lower cover plate 12 have the same shape, and the through slots 14 at the edges of the upper cover plate 11 and the lower cover plate 12 have the same size, so that the upper cover plate 11 can be detachably connected with the through slots 14 on the lower cover plate 12 through the nuts 15, the sealing sleeves 26 are made of transparent plastic hoses, the number of the sealing sleeves 26 is two, the two sealing sleeves are respectively located in the middle of the air inlet pipe 22 and the first through pipe 24, the air outlet pipe 23 and the second through pipe and are fixedly connected by glue, so that the whole sealing performance is stronger, the first diaphragm 33 and the second diaphragm 33 have the same shape and size and are symmetrically distributed at the upper end and the lower end of the sliding rod 32, the springs 36 are respectively fixed on the lower surface of the first diaphragm 33 and the upper surface of the second diaphragm 33, so that the springs help the first diaphragm 33 and the second diaphragm 33 to rapidly recover to the original position by their own elasticity after the gas pressure is eliminated, the phenomenon that the machine is not shut down is avoided.

Further, the housing assembly 1 further includes a through groove 14 and a nut 15, the through groove 14 is respectively opened at the edges of the upper cover plate 11 and the lower cover plate 12, and the upper cover plate 11 is detachably connected with the through groove 14 of the lower cover plate 12 through the nut 15.

In this embodiment, the through groove 14 at 11 edges of upper cover plate and the through groove 14 at 12 edges of lower cover plate are the same in shape and position and are five in number, and the upper cover plate 11 can be detachably connected with the through groove 14 on the lower cover plate 12 through the nut 15, so that the whole structure is more stable when the upper cover plate 11 and the lower cover plate 12 are combined, and the upper cover plate and the lower cover plate are convenient to detach during maintenance.

Further, the housing assembly 1 further comprises a clamping plate 16, and the clamping plate 16 is fixed on the upper surface of the upper cover plate 11.

In the embodiment, the clamping groove 16 and the upper cover plate 11 are integrally formed, so that the overall strength is improved, and the whole machine is more stable in clamping connection with an external machine.

Furthermore, the surfaces of the first through pipe 24 and the second through pipe 25 are provided with raised grains.

In this embodiment, the first through pipe 24 and the second through pipe 25 are provided with the raised grains on the surface, so that the contact area of the joint of the first through pipe 24 and the seal sleeve 26 with the second through pipe 25 is larger, and the switch cannot fall off due to the problem of air pressure, and the switch is not stable in connection.

Further, the ventilation assembly 2 further comprises a rotating shaft 27, and the air inlet pipe 22 is rotatably connected with the lower cover plate 12 through the rotating shaft 27.

In the present embodiment, the number of the rotating shafts 27 is two, and the two rotating shafts are respectively located at the connecting positions between the air inlet pipe 22 and the air outlet pipe 23 and the lower cover plate 12, so that the air inlet pipe 22 and the air outlet pipe 23 can be conveniently connected with an external oxygen source.

Further, the switch assembly 3 further comprises a limiting block 37, and the limiting blocks 37 are fixed at the top end and the bottom end of the sliding rod 32.

In this embodiment, the number of the limiting blocks 37 is two, and the diameter of the limiting blocks is larger than the width of the sliding rod 32, so that the first membrane 33 and the second membrane 34 are prevented from being separated from the sliding rod 32 when the positions of the two membranes are restored.

The utility model discloses a theory of operation and use flow: the utility model discloses install the back, dock connecting pipe 13 with display system and alarm system respectively, the pipeline of intake pipe 22 and respirator oxygen cylinder docks again, start the switch of oxygen cylinder, make high-pressure oxygen improve low pressure switch operating power through the inside that seal cover 26 and first siphunculus 24 got into organism 21, when low pressure switch during operation, high-pressure gas can cause the extrusion to inside, make first diaphragm 33 and second diaphragm 34 remove to middle electroplax 31, and provide working power supply for respirator demonstration and warning with the actuation of contact 35, thereby activate entire system work, when working power supply closes, first diaphragm 33 and second diaphragm 34 can utilize spring 36 self elasticity to resume the normal position, avoid taking place autonomic actuation with contact 35, the use flow of a malleation oxygen respirator low pressure switch has been accomplished.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A positive pressure oxygen respirator low-voltage switch which characterized in that: the air-permeable shell assembly comprises a shell assembly (1), the shell assembly (1) comprises an upper cover plate (11);

the ventilation component (2) comprises a machine body (21), an air inlet pipe (22), an exhaust pipe (23), a first through pipe (24), a second through pipe (25) and a sealing sleeve (26), the machine body (21) is fixedly connected inside the lower cover plate (12), the air inlet pipe (22) is fixed on one side of the lower cover plate (12), the exhaust pipe (23) is fixed on one side of the lower cover plate (12) far away from the air inlet pipe (22), the first through pipe (24) is fixed on one side of the machine body (21), the second through pipe (25) is fixed on one side of the machine body (21) far away from the first through pipe (24), the sealing sleeve (26) is positioned in the middle of the air inlet pipe (22) and the first through pipe (24), one end of the air inlet pipe is fixedly connected with the air inlet pipe (22), and the other end of the air inlet pipe is fixedly connected with the first through pipe (24);

switch module (3) include electroplax (31), slide bar (32), first diaphragm (33), second diaphragm (34) and contact (35), the inside of organism (21) is fixed with electroplax (31), be fixed with on electroplax (31) slide bar (32), sliding connection has on slide bar (32) first diaphragm (33) with second diaphragm (34), just first diaphragm (33) with second diaphragm (34) are located respectively both ends about slide bar (32), install spring (36) on slide bar (32), just spring (36) one end is fixed the upper surface of electroplax (31), one end is fixed the lower surface of first diaphragm (33), the upper surface mounting of electroplax (31) has contact (35), and is located one side of slide bar (32).

2. The low-voltage switch of the positive-pressure oxygen respirator of claim 1, wherein: the shell assembly (1) further comprises a through groove (14) and a nut (15), the edges of the upper cover plate (11) and the lower cover plate (12) are respectively provided with the through groove (14), and the upper cover plate (11) is detachably connected with the through groove (14) in the lower cover plate (12) through the nut (15).

3. The low-voltage switch of the positive-pressure oxygen respirator of claim 1, wherein: the shell assembly (1) further comprises a clamping plate (16), and the clamping plate (16) is fixed on the upper surface of the upper cover plate (11).

4. The low-voltage switch of the positive-pressure oxygen respirator of claim 1, wherein: the surfaces of the first through pipe (24) and the second through pipe (25) are provided with raised grains.

5. The low-voltage switch of the positive-pressure oxygen respirator of claim 1, wherein: the ventilation assembly (2) further comprises a rotating shaft (27), and the air inlet pipe (22) is rotatably connected with the lower cover plate (12) through the rotating shaft (27).

6. The low-voltage switch of the positive-pressure oxygen respirator of claim 1, wherein: the switch component (3) further comprises a limiting block (37), and the limiting block (37) is fixed at the top end and the bottom end of the sliding rod (32).