CN217951979U

CN217951979U - Medical equipment and low-temperature-resistant and high-pressure-resistant pressure regulation and control device

Info

Publication number: CN217951979U
Application number: CN202222175096.8U
Authority: CN
Inventors: 周强; 杨磊; 程科
Original assignee: Changzhou Ruihai Yingnuo Medical Technology Co ltd
Current assignee: Changzhou Ruihai Yingnuo Medical Technology Co ltd
Priority date: 2022-08-17
Filing date: 2022-08-17
Publication date: 2022-12-02
Anticipated expiration: 2032-08-17

Abstract

The utility model relates to a medical equipment and low temperature resistant high pressure resistant pressure regulation and control device for put through gaseous return circuit that forms the air current among the medical equipment, include: the air inlet valve comprises an air inlet assembly, a first valve body, a loose joint, a tee joint and an adapter; the first end of the air inlet assembly is connected with an external air bottle or a pressure air conveying pipe, the second end of the air inlet assembly is connected with the first valve body, the first end of the loose joint is connected with the first valve body, and the central axis of the second end of the air inlet assembly is parallel to or crossed with or collinear with the central axis of the first end of the loose joint; the second end of the loose joint is connected with the first branch of the tee joint, the adapter is connected with the second branch of the tee joint, and the adapter is used for connecting external medical equipment. The device can well overcome the problem that when the device is switched to a dynamic state from a static state again, the air outlet pipe often causes the connected external equipment or parts to work under the pressure value exceeding the set value due to overlarge pressure, so that potential safety hazards are brought to the external equipment or parts in the using process.

Description

Medical equipment and low-temperature-resistant and high-pressure-resistant pressure regulation and control device

The technical field is as follows:

the utility model belongs to the technical field of the medical treatment, concretely relates to medical equipment and low temperature resistant high pressure resistant pressure regulation and control device.

Background art:

in the prior art, a low-temperature-resistant and high-pressure-resistant pressure regulating and controlling device for communicating and conveying gas inside can well realize the pressure regulating and stabilizing functions and ensure the pressure consistency of an air inlet pipe and an air outlet pipe when the device is in a dynamic state in the use process, so that external equipment or parts connected with the air outlet pipe can normally work under a set pressure value; however, when the device is in a non-use state, i.e. in a static state, the outlet pipe of the device is closed, but the pressure of the outlet pipe and the pressure of the inlet pipe are still kept balanced, and when the device is switched from the static state to a dynamic state again, the outlet pipe often causes the connected external equipment or components to work under the pressure value exceeding the set value due to overlarge pressure, so that potential safety hazards are brought to the external equipment or components in the use process.

The utility model has the following contents:

the utility model aims at providing a high pressure regulation and control device automobile power supply terminal automatic production equipment is able to bear or endure low temperature, when the device switches to dynamic state again from static state, the outlet duct often can make the external equipment or the part of connection work under exceeding the pressure value of settlement because pressure is too big, makes it bring the problem of the potential safety hazard in the use to external equipment or part. So that the pressure regulating and controlling device with low temperature resistance and high pressure resistance can ensure that the pressure between the air inlet pipe and the air outlet pipe has pressure difference under the static non-working state, wherein the pressure of the air inlet pipe keeps balanced with the pressure value communicated with the air inlet pipe, the pressure at the air outlet pipe is only maintained in the pressure value range of external equipment or parts communicated with the air outlet pipe in normal working,

for the technical problem who exists among the better solution prior art, the utility model provides a low temperature resistant high pressure resistant pressure regulation and control device, a low temperature resistant high pressure resistant pressure regulation and control device for put through the gaseous return circuit that forms the air current among the medical equipment, its improvement lies in, includes: the air inlet assembly, the first valve body, the loose joint, the tee joint and the adapter are arranged on the first valve body; the first end of the air inlet assembly is connected with an external air bottle or a pressure air conveying pipe, the second end of the air inlet assembly is connected with the first valve body, the first end of the loose joint is connected with the first valve body, and the central axis of the second end of the air inlet assembly is spatially parallel or crossed or collinear with the central axis of the first end of the loose joint; the second end of the loose joint is connected with the first branch of the tee joint, the adapter is connected with the second branch of the tee joint, and the adapter is used for connecting external medical equipment;

the first valve body regulates the pressure of gas flowing through the gas inlet assembly and the loose joint, and when the low-temperature-resistant and high-pressure-resistant pressure regulation and control device works in a dynamic state, the first valve body realizes real-time regulation of the pressure of the gas in the gas inlet assembly and the loose joint, and keeps the internal pressure of the gas in the gas inlet assembly and the gas in the loose joint balanced, so that the pressure of the gas in the loose joint is within an initial set pressure threshold range; when the pressure regulating device resistant to low temperature and high pressure is in a non-working static state, the first valve body keeps the balance between the gas pressure in the gas inlet assembly and the pressure in an external gas cylinder or a pressure gas transmission pipe, a pressure difference exists between the gas pressure in the loose joint and the gas pressure in the gas inlet assembly, and the gas pressure in the loose joint is within an initial set pressure threshold range.

Further, the intake assembly includes: the gas input end is the first end of the gas inlet assembly and is used for being connected with an external gas cylinder or a pressure gas pipe, the gas input end is detachably and hermetically connected with the gas input end and the valve joint, and the valve joint is the second end of the gas inlet assembly and is connected with the first valve body.

Further, the gas input tube comprises: connecting portion, deformation portion, coupling and body of preapring for an unfavorable turn of events, the coupling is crowded respectively and is impressed the subassembly that admits air with the inside that the valve connects, connecting portion bulldoze the coupling is connected respectively the subassembly that admits air with the outside that the valve connects, the coupling with the body links into an integrated entity, connecting portion cover is located on the body, deformation portion cover is located on the body and be located between the connecting portion.

Further, the pipe joint is of an external conical structure and is matched with the internal conical hole of the gas input end and the internal conical hole of the valve joint, and the pipe joint is provided with a sealing part which is respectively connected with the gas inlet assembly and the valve joint in a sealing manner; the deformation preventing portion prevents the pipe body from being extruded and deformed by external force or space limitation.

Further, the body is the polyurethane pipe, the portion of preapring for an unfavorable turn of events is the spring.

The front end of the second valve body is connected with a third branch of the tee joint, the second valve body is used for adjusting the auxiliary pressure in the working process in a dynamic state or adjusting the gas pressure provided by the movable joint to the tee joint in a non-working static state, and the second valve body is used for manually or automatically adjusting the gas pressure in the tee joint.

The pressure regulating device comprises a pressure regulating device, a pressure release part and a silencing part, wherein the pressure regulating device is used for regulating the pressure inside the pressure regulating device, the pressure release part is used for releasing and regulating the pressure inside the pressure regulating device, the silencing part is used for reducing the noise of the gas discharged by the pressure release part in the process of regulating the pressure, the pressure release part is connected with the rear end of the second valve body, the silencing part is arranged at the rear end of the pressure release part, and the pressure release end of the pressure release part is positioned in the silencing part.

Furthermore, a silencing gasket is arranged in the silencing part and is a copper sheet.

In order to better solve the technical problem that exists among the prior art, the utility model also provides a medical equipment, its improvement lies in including the pressure regulation and control device that low temperature resistant is high pressure resistant.

The beneficial effects of the utility model reside in that, can carry out balanced regulation to the pressure between intake pipe and the outlet duct under the high pressure regulation and control device dynamic operating condition of low temperature resistant high pressure, and can ensure that there is pressure differential in the pressure between intake pipe and the outlet duct under the high pressure regulation and control device static non-operating condition of low temperature resistant, wherein intake pipe pressure keeps balanced with the pressure value that the switch-on intake pipe goes out, the pressure of outlet duct department only maintains the pressure value scope that is in normal work with the external equipment or the part of outlet duct intercommunication, too big intake pipe pressure can not lead to the fact the influence to outlet duct pressure, the gaseous threshold value that advances that the receipt was thought to match with it of the outlet duct through, in order to reach the unbalance of intake pipe and outlet duct pressure value, finally play and protect external equipment or part can not receive too high pressure and damage under static state.

Drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the drawings of the embodiments will be briefly described below, and it is obvious that the drawings in the following description only relate to some embodiments of the present invention, and are not intended to limit the present invention.

Fig. 1 is a schematic view of the overall structure of the low-temperature and high-pressure resistant pressure regulating device of the present invention;

fig. 2 is a schematic view of a gas input pipe structure in the low temperature and high pressure resistant pressure control device of the present invention.

In the figure:

a gas inlet assembly 100, a gas inlet 110, a gas inlet pipe 120, a connecting part 121,

The anti-deformation part 122, the pipe joint 123, the pipe body 124, the valve joint 130, the first valve body 200, the movable joint 300, the tee 400, the adapter 500, the second valve body 600, the pressure relief part 700 and the silencing part 800.

Detailed Description

Fig. 1-2, discussed below, and the various embodiments used to describe the principles of the present invention in this patent document are by way of illustration only and should not be construed in any way to limit the scope of the invention. It will be appreciated by those skilled in the art that the principles of the present invention may be implemented in any suitable pressure regulating device that is resistant to low temperatures and high pressures. The terminology used to describe various embodiments is exemplary. It should be understood that these are provided solely to aid in the understanding of the present specification, and their use and definition do not limit the scope of the present invention in any way. The use of the terms first, second, etc. to distinguish between objects having the same set of terms is not intended to represent a temporal order in any way, unless otherwise specifically stated. A group is defined as a non-empty group containing at least one element.

In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined below to clearly and completely describe the technical solution of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the described 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. It should be understood that the exemplary embodiments described herein should be considered in descriptive sense only and not for purposes of limitation. Descriptions of features or aspects within each exemplary embodiment should generally be considered as available for similar features or aspects in other exemplary embodiments.

Example 1

The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

As fig. 1, fig. 2 show the utility model discloses a whole schematic diagram of low temperature resistant high pressure resistant pressure regulation and control device structure, a low temperature resistant high pressure resistant pressure regulation and control device for the gaseous return circuit that forms the air current of switch-on among the medical equipment, a serial communication port, include: the air inlet component 100, the first valve body 200, the loose joint 300, the tee 400 and the adapter 500; the first end of the air inlet assembly 100 is connected with an external air bottle or a pressure air conveying pipe, the second end of the air inlet assembly 100 is connected with the first valve body 200, the first end of the movable joint 300 is connected with the first valve body 200, and the central axis of the second end of the air inlet assembly 100 is spatially parallel or crossed or collinear with the central axis of the first end of the movable joint 300; a second end of the union 300 is connected with a first branch of the tee 400, the adapter 500 is connected with a second branch of the tee 400, and the adapter 500 is used for connecting external medical equipment; the first valve body 200 adjusts the pressure of the gas flowing through the gas inlet assembly 100 and the movable joint 300, and when the pressure regulating device resistant to low temperature and high pressure works in a dynamic state, the first valve body 200 realizes real-time regulation of the pressure of the gas in the gas inlet assembly 100 and the movable joint 300, and keeps the pressure in the gas inlet assembly 100 and the movable joint 300 balanced, so that the pressure of the gas in the movable joint 300 is within an initial set pressure threshold range; the balance here is that under the condition that the pressure in the external gas cylinder or the pressure gas transmission pipe is ensured to be consistent with the pressure in the gas inlet assembly 100, the pressure flowing through the first valve body 200 can meet the pressure value when the movable joint 300 is normally used by adjusting the pressure through the first valve body 200, so that the movable joint 300 can realize safe and stable operation within the range of the initial set pressure threshold value, wherein the range of the initial set pressure threshold value is used as a reference value between 7Mp and 6.2MPA, wherein the working pressure of the pressure regulating device with low temperature resistance and high pressure resistance is preferably 6.2MPA, the gas pressure passing through the movable joint 300 is limited through the range of the initial set pressure threshold value, and the working pressure of the gas inlet assembly 100 and the movable joint 300 is simultaneously adjusted by judging whether the first valve body 200 is needed to intervene. In general, the pressure value in the external gas cylinder or the pressure gas transmission pipe can be within the range of the initial set pressure threshold, and if and only if the gas pressure in the movable joint 300 is greater than or equal to 7Mp or maximally close to 10MPA, the first valve body 200 is started and the pressure is adjusted; when the pressure regulating device resistant to low temperature and high pressure is in a non-working static state, the first valve body 200 keeps the gas pressure in the gas inlet assembly 100 and the pressure in an external gas cylinder or a pressure gas transmission pipe balanced, a pressure difference exists between the gas pressure in the movable joint 300 and the gas pressure in the gas inlet assembly 100, and the gas pressure in the movable joint 300 is within an initial set pressure threshold range. Similarly, when the gas pressure in the gas inlet assembly 100 connected to the external gas cylinder or the pressure gas pipe is not less than 7Mp or is at most close to 10MPA in the non-operating static state, the first valve body 200 is always kept in the off state to ensure that the gas pressure in the movable joint 300 is consistent with the safe and stable working pressure value, that is, the reference value of the gas pressure is between 7Mp and 6.2MPA, wherein the working pressure of the preferred low temperature and high pressure resistant pressure regulating device is 6.2MPA, such an arrangement effectively prevents the gas pressure in the movable joint 300 from being too high in the static state, and when the low temperature and high pressure resistant pressure regulating device needs to be opened again, the too high gas pressure easily causes damage to the components connected to the movable joint 300, so it is important to maintain the difference between the gas pressure in the gas inlet assembly 100 and the gas pressure in the movable joint 300 in the static state.

The intake assembly 100 includes: the gas inlet assembly comprises a gas input end 110, a gas input pipe 120 and a valve joint 130, wherein the gas input end 110 is a first end of the gas inlet assembly 100 and is used for connecting an external gas cylinder or a pressure gas pipe, the gas input pipe 120 is detachably and hermetically connected with the gas input end 110 and the valve joint 130, and the valve joint 130 is a second end of the gas inlet assembly 100 and is connected with the first valve body 200.

The gas input pipe 120 includes: the air inlet component comprises a connecting portion 121, an anti-deformation portion 122, a pipe joint 123 and pipe bodies 124, wherein the pipe joint 123 is extruded into the air inlet component 100 and the valve joint 130 respectively, the connecting portion 121 pushes and presses the pipe joint 123 and is in threaded connection or rotationally clamped connection with the outer portions of the air inlet component 100 and the valve joint 130 respectively, the pipe joint 123 and the pipe bodies 124 are connected into a whole, the connecting portion 121 is sleeved on the pipe bodies 124, and the anti-deformation portion 122 is sleeved on the pipe bodies 124 and is located between the connecting portion 121. The gas input pipe 120 is simple in structure, and can be quickly separated from the gas input end 110 and the valve joint 130, all parts of the whole low-temperature-resistant and high-pressure-resistant pressure regulating and controlling device structure can be replaced, all the parts can be easily disassembled or replaced, and the replaceability is stronger.

In the whole pressure control device with low temperature resistance and high pressure resistance, the metal material of the structural member can work in an environment at-100 ℃ and below, the pipe body 124 in the gas input pipe 120 can work at-50 ℃ and below, especially, in a low temperature and high pressure state, in order to better improve the connection between the connecting part 121 and the gas input end 110 and prevent the problem of gas leakage between the two, an elastic low temperature resistant first sealing ring is usually configured at the top end where the connecting part 121 is spirally connected and attached to the gas input end 110, the elastic low temperature resistant first sealing ring is not shown in the figure, the pipe joint 123 is synchronously compressed through the elastic low temperature resistant first sealing ring, so that the pipe joint 123 is always positioned inside the gas input end 110, the pipe joint 123 is always positioned inside the valve joint 130, and the second sealing ring on the pipe joint 123 is respectively compressed and abutted against the side wall inside the gas input end 110 and the side wall inside the valve joint 130, so that the pipe joint 123 and the pipe joint 110 and the valve joint 130 form an internally conductive structure, and the low temperature and high pressure gas can be effectively prevented from leaking from the connecting seam due to the arrangement of the two sealing rings. Meanwhile, in consideration of the temperature of air flowing through the low-temperature-resistant and high-pressure-resistant pressure regulating device, condensed water or frost is formed outside the connecting part 121, the deformation-preventing part 122 and the pipe body 124, and a heat-insulating cotton clothes is wrapped on the parts to form a heat-insulating and cold-proof bridge structure with external air; the pressure of the whole low-temperature and high-pressure resistant pressure regulating and controlling device is close to or not more than 10MPA all the time, and in order to effectively prevent the situation that each part in the pressure regulating and controlling device is separated due to pressure rushing out under high pressure, the parts are required to bear the gas pressure for a long time by adopting a loose screw and nut combined structure, so that the connecting part is not loosened and finally separated.

The pipe joint 123 is of an external conical structure and is matched with the internal conical hole of the gas input end 110 and the internal conical hole of the valve joint 130, and the pipe joint 123 is provided with a sealing component which is respectively connected with the gas inlet assembly 100 and the valve joint 130 in a sealing way; the deformation preventing portion 122 prevents the pipe body 124 from being crushed and deformed by an external force or by a space restriction. The pipe body 124 is a polyurethane pipe, and the deformation preventing portion 122 is a spring.

Such gas input pipe 120 can guarantee that after long-time, whole shape stability is high, can not produce deformation because of external environment changes or outside atress changes, fine avoided gas input pipe 120 by the crooked back because pipeline passageway is not smooth lead to local pressure pile up or gas circulation is not smooth and easy for gas pressure is unbalanced, especially under the dynamic state this kind of problem is absolutely not allowed to appear.

The three-way valve further comprises a second valve body 600, the front end of the second valve body 600 is connected with a third branch of the three-way valve 400, the second valve body 600 is used for auxiliary adjustment of pressure in a working state in a dynamic state or adjustment of gas pressure provided by the movable joint 300 to the three-way valve 400 in a non-working static state, and the second valve body 600 manually or automatically adjusts the gas pressure in the three-way valve 400. Meanwhile, the pipe joint 123 is of an external conical structure and is matched with the internal conical hole of the gas input end 110 and the internal conical hole of the valve joint 130, and the connecting part 121 pushes and presses the pipe joint 123 and is respectively in threaded connection or rotationally clamped connection with the outside of the gas inlet assembly 100 and the valve joint 130, so that the sealing performance between the parts is met, the installation and connection performance is effectively enhanced, the separation between the gas input end 110 and the gas input pipe 120 caused by the overhigh gas pressure input of the external gas cylinder or the pressure gas transmission pipe to the gas input end 110 can be prevented, or the separation between the gas input pipe 120 and the valve joint 130 caused by the overhigh gas pressure input of the external gas cylinder or the pressure gas transmission pipe to the gas input end 110 can be prevented, and particularly, the occurrence of life injury accidents is easily caused by the separation generated under high pressure under the dynamic working state of the low-temperature and high-pressure resistant pressure regulating and controlling device. The pressure in the whole low-temperature-resistant and high-pressure-resistant pressure regulating and controlling device can be better regulated by the combined use of the first valve body 200 and the second valve body 600, the pressure at the output end of the low-temperature-resistant and high-pressure-resistant pressure regulating and controlling device, namely the pressure at the position where the low-temperature-resistant and high-pressure-resistant pressure regulating and controlling device is connected with external medical equipment or medical devices can be always kept under the optimal working pressure of 6.2MPA no matter in a dynamic state or a static state, and the working and running stability of the external medical equipment or medical devices is ensured.

The low-temperature-resistant and high-pressure-resistant pressure regulating and controlling device further comprises a pressure relief part 700 used for releasing and regulating the pressure in the low-temperature-resistant and high-pressure-resistant pressure regulating and controlling device, and a silencing part 800 used for reducing the noise of the gas discharged by the pressure relief part 700 in the pressure releasing and regulating process, wherein the pressure relief part 700 is connected with the rear end of the second valve body 600, the silencing part 800 is installed at the rear end of the pressure relief part 700, and the pressure relief end of the pressure relief part 700 is located in the silencing part 800.

When the second valve body 600 is opened to release pressure, the pressure relief portion 700 performs a pressure reduction operation on the gas in the second valve body 600, and since the pressure value in the second valve body 600 is high, noise such as squeaking or other uncomfortable sounds is easily generated when the pressure relief operation is performed through the pressure relief portion 700, and by installing the pressure relief end of the pressure relief portion 700 in the sound attenuation portion 800, the released gas flows through the sound attenuation portion 800 and is discharged to the outside, so that the noise generated by the gas flowing through the pressure relief portion 700 is reduced, and the sound insulation and noise reduction functions are achieved.

The silencing part 800 is provided with a silencing gasket therein, and the silencing gasket is a copper sheet. In order to better realize the effective function of the sound-deadening part 800, the adopted sound-deadening gasket is a brass gasket with the thickness of less than or equal to 0.5 mm.

Example 2

The utility model relates to a medical equipment, its improvement lies in, including the pressure regulation and control device that the aforesaid is low temperature resistant highly compressed, the pressure regulation and control device that specifically is low temperature resistant highly compressed has been described in embodiment 1, and the expansion is not laying here.

Claims

1. A low-temperature-resistant and high-pressure-resistant pressure regulating device for a loop for connecting gas to form gas flow in medical equipment is characterized by comprising: the air inlet valve comprises an air inlet assembly (100), a first valve body (200), a loose joint (300), a tee joint (400) and an adapter (500); the first end of the air inlet assembly (100) is connected with an external air bottle or a pressure air conveying pipe, the second end of the air inlet assembly (100) is connected with the first valve body (200), the first loose joint end of the loose joint (300) is connected with the first valve body (200), and the central axis of the second end of the air inlet assembly (100) is spatially parallel or crossed or collinear with the central axis of the first loose joint end of the loose joint (300); the second end of the loose joint (300) is connected with the first branch of the tee joint (400), the adapter (500) is connected with the second branch of the tee joint (400), and the adapter (500) is used for connecting external medical equipment;

the first valve body (200) adjusts the pressure of gas flowing through the gas inlet assembly (100) and the loose joint (300), and when the pressure regulating and controlling device with low temperature resistance and high pressure resistance works in a dynamic state, the first valve body (200) realizes real-time regulation of the pressure of gas in the gas inlet assembly (100) and the loose joint (300) and keeps the pressure in the gas inlet assembly and the loose joint balanced, so that the pressure of gas in the loose joint (300) is within an initial set pressure threshold range; when the pressure regulating device resistant to low temperature and high pressure is in a non-working static state, the first valve body (200) keeps the balance between the gas pressure in the gas inlet assembly (100) and the pressure in an external gas cylinder or a pressure gas transmission pipe, the pressure difference exists between the gas pressure in the loose joint (300) and the gas pressure in the gas inlet assembly (100), and the gas pressure in the loose joint (300) is within an initial set pressure threshold range.

2. The pressure regulating device of claim 1, wherein the air inlet assembly (100) comprises: the gas inlet assembly comprises a gas input end (110), a gas input pipe (120) and a valve joint (130), wherein the gas input end (110) is the first end of the gas inlet assembly (100) and is used for connecting an external gas cylinder or a pressure gas conveying pipe, the gas input pipe (120) is detachably and hermetically connected with the gas input end (110) and the valve joint (130), namely the second end of the gas inlet assembly (100), is connected with the first valve body (200).

3. The pressure regulating device of claim 2, wherein the gas input pipe (120) comprises: connecting portion (121), deformation portion (122), coupling (123) and body (124) of preapring for an unfavorable turn of events, coupling (123) extrude respectively enter admit air subassembly (100) with the inside of valve joint (130), connecting portion (121) bulldoze coupling (123) and connect respectively admit air subassembly (100) with the outside of valve joint (130), coupling (123) with body (124) link into an integrated entity, connecting portion (121) cover is located on body (124), deformation portion (122) cover is located on body (124) and be located between connecting portion (121).

4. The low temperature and high pressure resistant pressure regulating device according to claim 3, wherein the pipe joint (123) is of an external conical structure and is matched with the internal conical hole of the gas input end (110) and the internal conical hole of the valve joint (130), the pipe joint (123) is provided with a sealing part which is respectively connected with the gas inlet component (100) and the valve joint (130) in a sealing way; the deformation preventing part (122) prevents the pipe body (124) from being extruded and deformed by external force or space limitation; the pipe body (124) is a polyurethane pipe, and the deformation preventing part (122) is a spring.

5. The pressure regulating device of claim 1, further comprising a second valve body (600), wherein a front end of the second valve body (600) is connected to a third branch of the tee joint (400), the second valve body (600) is used for auxiliary pressure regulation during a dynamic state or gas pressure provided by the movable joint (300) to the tee joint (400) during a non-working static state, and the second valve body (600) is used for manual or automatic gas pressure regulation in the tee joint (400).

6. The low-temperature-resistant and high-pressure-resistant pressure regulating device according to claim 1, further comprising a pressure relief portion (700) for releasing and regulating the pressure inside the low-temperature-resistant and high-pressure-resistant pressure regulating device, and a silencing portion (800) for reducing noise of gas discharged from the pressure relief portion (700) during the pressure releasing and regulating process, wherein the pressure relief portion (700) is connected to the rear end of the second valve body (600), the silencing portion (800) is installed at the rear end of the pressure relief portion (700), and the pressure relief end of the pressure relief portion (700) is located inside the silencing portion (800).

7. The low-temperature-resistant and high-pressure-resistant pressure regulating device as claimed in claim 6, wherein a silencing pad is arranged in the silencing part (800), and the silencing pad is a copper sheet.

8. A medical device comprising a pressure regulating device of any one of claims 1-7 that is resistant to low temperature and high pressure.