CN114893633A - Self-sealing structure of medical gas terminal base - Google Patents
Self-sealing structure of medical gas terminal base Download PDFInfo
- Publication number
- CN114893633A CN114893633A CN202210479891.8A CN202210479891A CN114893633A CN 114893633 A CN114893633 A CN 114893633A CN 202210479891 A CN202210479891 A CN 202210479891A CN 114893633 A CN114893633 A CN 114893633A
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- terminal base
- valve
- sealing
- self
- sealing ring
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- 238000007789 sealing Methods 0.000 title claims abstract description 84
- 238000012423 maintenance Methods 0.000 claims abstract description 42
- 230000000694 effects Effects 0.000 claims abstract description 6
- 238000004891 communication Methods 0.000 claims description 2
- 241000283216 Phocidae Species 0.000 claims 1
- 238000012360 testing method Methods 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 9
- 239000010959 steel Substances 0.000 description 9
- 238000009423 ventilation Methods 0.000 description 2
- 230000001934 delay Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L29/00—Joints with fluid cut-off means
- F16L29/02—Joints with fluid cut-off means with a cut-off device in one of the two pipe ends, the cut-off device being automatically opened when the coupling is applied
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L43/00—Bends; Siphons
- F16L43/02—Bends; Siphons adapted to make use of special securing means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Safety Valves (AREA)
Abstract
The invention discloses a self-sealing structure of a medical gas terminal base, which comprises a terminal base and a valve seat assembly, wherein the terminal base is provided with a cavity-shaped structure, one end of the cavity-shaped structure is provided with a threaded connector, a valve core is arranged in the cavity-shaped structure, and the valve core moves up and down along an inner cavity of the cavity-shaped structure; the maintenance valve is arranged on the threaded connector and comprises a sealing boss, the valve core moves upwards, and the valve core and the sealing boss of the maintenance valve are connected and closed under the action of gas force to form a self-sealing structure of the terminal base. By using the structure, the terminal base can be automatically sealed when the medical gas terminal is disassembled and maintained, manual operation is not needed, the terminal base is simple and convenient, the terminal base can be independently installed on site in advance, and the field pipeline pressure test cannot be influenced due to the good sealing effect of the terminal base.
Description
Technical Field
The invention discloses a self-sealing structure of a medical gas terminal base, and relates to the technical field of medical gas equipment.
Background
The medical gas terminal is an output port assembly of a medical gas supply system, which is connected and disconnected by an operator, and the terminal base is a component of the medical gas terminal and is a part of the terminal connected with a pipeline distribution system. When the medical gas terminal breaks down and needs to be maintained, in order to not influence the normal use of other terminals, each terminal except the vacuum terminal should be equipped with a maintenance valve, and the terminal maintenance valve that prior art adopted at present is mainly manual, and troublesome poeration, improper operation can influence the normal use of other terminals when maintaining, delays treatment. The automatic maintenance valve is partially adopted, so that the structure is complex, the channel area is small, the throttling phenomenon can be generated, and the pressure drop of the terminal is overlarge; or the sealing is not realized, and the air leakage phenomenon exists.
The utility model patent application with application number CN201921353003.8 discloses a medical gas terminal, which comprises a decorative hat rack, a connecting sleeve and a base; the steel pin frame is sleeved on the connecting sleeve, sliding grooves for the first steel pin and the second steel pin to penetrate through are formed in the outer circumferential surface of the connecting sleeve, and two ends of the first steel pin and two ends of the second steel pin are respectively inserted into the guide grooves of the steel pin frame. According to the medical gas terminal, the double rows of steel pins are adopted to enhance the locking and fixing of the gas plug and prevent the gas plug from popping up accidentally to hurt people in a ventilation state; the same half of the used steel pin frame is butted through a buckle, so that the steel pin frame is convenient to disassemble and assemble; all sealing rings for sealing at the gas terminal are mounted on a valve seat, the valve seat can be taken down alone to replace the sealing rings under the condition that the base is ventilated, a gas source or a pipeline valve does not need to be closed, but a maintenance valve needs to be manually closed, and the effect of replacing the sealing rings with gas maintenance is achieved. However, the gas terminal adopting the technical scheme is complex in structure and difficult to mount and dismount; the structural characteristic of the base automatic sealing function when the terminal is not maintained is not possessed, so that the structural performance is unstable, and the sealing performance cannot be effectively guaranteed.
Disclosure of Invention
The invention aims to solve the problems, and provides a self-sealing structure of a medical gas terminal base, which comprises a terminal base and a valve seat assembly, wherein the terminal base is provided with a cavity-shaped structure, one end of the cavity-shaped structure is provided with a threaded connector, a valve core is arranged in the cavity-shaped structure, and the valve core moves up and down along an inner cavity of the cavity-shaped structure; the maintenance valve is arranged on the threaded connector and comprises a sealing boss, the valve core moves upwards, and the valve core and the sealing boss of the maintenance valve are connected and closed under the action of gas force to form a self-sealing structure of the terminal base. By using the structure, the terminal base can be automatically sealed when the medical gas terminal is disassembled and maintained, manual operation is not needed, the terminal base is simple and convenient, the terminal base can be independently installed on site in advance, and the field pipeline pressure test cannot be influenced due to the good sealing effect of the terminal base.
The technical scheme adopted by the invention is as follows:
the invention discloses a self-sealing structure of a medical gas terminal base, which comprises a terminal base and a valve seat assembly, wherein the terminal base is provided with a cavity-shaped structure, one end of the cavity-shaped structure is provided with a threaded connector, a valve core is arranged in the cavity-shaped structure, and the valve core moves up and down along an inner cavity of the cavity-shaped structure; the maintenance valve is arranged on the threaded connector and comprises a sealing boss, the valve core moves upwards, and the valve core and the sealing boss of the maintenance valve are connected and closed under the action of gas to form a self-sealing structure of the terminal base.
Further, the maintenance valve includes the blow vent, sealed boss and sealed annular, and the maintenance valve is cylindrical structure, and the maintenance valve outside is equipped with connecting thread, and connecting thread is connected with sealed annular, and the junction is equipped with first sealing washer, and the blow vent sets up in the maintenance valve middle part, and the blow vent can insert specialized tool and install and dismantle, and sealed annular and the combination of sealed boss set up in the maintenance valve lower part.
Furthermore, one side of the sealing ring groove is a conical surface, and the conical surface of the sealing ring groove restrains the first sealing ring in the sealing ring groove, so that the first sealing ring is prevented from falling off when the maintenance valve is mounted and dismounted; the first sealing ring is arranged on the maintenance valve, so that gas can be prevented from leaking from the threaded connection;
further, the valve core comprises a sealing gasket and a valve body, the sealing gasket is arranged at the top of the valve body and fixedly connected with the valve body, gas channels are uniformly arranged in the circumferential direction of the valve body, and the gas channels form the upper, lower, inner and outer gas communication of the valve core.
Further, the valve seat assembly comprises a connecting sleeve, a second sealing ring and a pressure plate, the second sealing ring is sleeved on the connecting sleeve, threads are arranged on the connecting sleeve, and the threads of the connecting sleeve are matched with the threaded connector to connect the terminal base and the valve seat assembly.
Further, the pressure plate is installed in the valve seat assembly bottom, and the pressure plate is cylindrical protruding structure, and the valve seat assembly is connected with the terminal base, and the cylindrical protruding structure of pressure plate passes the blow vent of maintenance valve, and cylindrical protruding structure acts on the valve body and moves down.
The invention has the following technical effects:
the invention discloses a self-sealing structure of a medical gas terminal base, and provides a self-sealing structure of a medical gas terminal base, which has the advantages of simple structure, stable performance, large channel area and good sealing performance; the problem of prior art automatic maintenance valve structure complicacy, the little throttle phenomenon that produces of passageway area, or can not seal the gas leakage phenomenon that produces is effectively solved.
The method comprises the following specific steps:
1. the terminal base is simple in structure and convenient to mount and dismount;
2. compared with the prior art, the invention cancels a spring, has self-sealing capability and large channel area, and can effectively realize the pressure drop of the terminal;
3. the invention adopts the combination of the sealing gasket and the sealing boss, has good sealing effect, and does not influence the pressure test of the pipeline on site under the condition of not installing the valve seat assembly.
Drawings
FIG. 1 is a schematic front view cross-section of the present invention;
FIG. 2 is a schematic view of a service valve of the present invention;
FIG. 3 is a schematic view of the valve cartridge of the present invention;
FIG. 4 is a schematic view of the installation of the terminal base and valve seat assembly of the present invention;
the labels in the figure are: 1-terminal base, 2-maintenance valve, 201-vent, 202-sealing boss, 203-sealing ring groove, 3-first sealing ring, 4-valve core, 401-sealing gasket, 402-valve body, 5-valve seat assembly, 501-connecting sleeve, 502-second sealing ring and 503-pressure plate.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments.
In the embodiment, the adopted data is a preferred scheme, but is not used for limiting the invention;
example 1
As shown in fig. 1 to 4, the present embodiment provides a medical gas terminal base self-sealing structure, which includes a terminal base 1, a maintenance valve 2, a first sealing ring 3, a valve core 4, and a valve seat assembly. The terminal base 1 is of a cavity-shaped structure, a threaded connector is arranged at one end of the terminal base 1 and can be connected with a connecting sleeve 501 on a valve seat assembly 5, a valve core 4 is arranged in a cavity of the terminal base 1, a maintenance valve 2 is further arranged in the threaded connector of the terminal base 1, and the valve core 4 can move up and down freely in the cavity between the maintenance valve 2 and the terminal base 1.
In this embodiment, maintenance valve 2 utilizes specialized tool to insert blow vent 201 clockwise rotation and is connected with terminal base 1, the maintenance valve bottom is equipped with sealed annular 203 for install first sealing washer 3, and sealed annular 203 one side is the conical surface, can avoid first sealing washer 3 to drop in sealed annular 203 with first sealing washer 3 restraint, maintenance valve 2 bottom still is equipped with annular sealed boss 202.
In this embodiment, the valve core 4 includes a sealing gasket 401 and a valve body 402, the sealing gasket 401 is fixedly connected with the valve body 402, and a plurality of gas channels which are communicated with each other up and down and whose periphery is communicated with the inside are arranged in the circumferential direction of the valve core 4. In the embodiment, the gas terminal base is provided with no spring, so that the channel area is large, and the pressure drop of the terminal can be effectively realized;
example 2
The embodiment provides a medical gas terminal base self-sealing structure, including terminal base 1, maintenance valve 2, first sealing washer 3, case 4 and valve seat sub-assembly. The terminal base 1 is of a cavity-shaped structure, a threaded connector is arranged at one end of the terminal base 1 and can be connected with a connecting sleeve 501 on a valve seat assembly 5, a valve core 4 is arranged in a cavity of the terminal base 1, a maintenance valve 2 is further arranged in the threaded connector of the terminal base 1, and the valve core 4 can move up and down freely in the cavity between the maintenance valve 2 and the terminal base 1.
In this embodiment, the valve seat assembly 5 includes a connecting sleeve 501, a second sealing ring 502, and a pressure plate 503. The connecting sleeve 501 can rotate freely relative to the valve seat assembly 5, the second sealing ring 502 is sleeved on the connecting sleeve 501, the pressure plate 503 is installed at the bottom of the valve seat assembly 5, and the pressure plate 503 has a cylindrical protruding structure.
In this embodiment, after the terminal base 1 is connected with the medical gas pipeline system, gas enters the bottom of the valve core 4 in the cavity of the terminal base 1, the valve core 4 moves upwards under the action of gas force, the sealing gasket 401 is in contact with the sealing boss 202 of the maintenance valve 2, and the sealing gasket 401 is pre-deformed to form self-sealing.
In this embodiment, when the valve seat assembly 5 is connected to the terminal base 1, the cylindrical protrusion structure on the pressure plate 503 passes through the vent 201 of the maintenance valve 2, and acts on the valve body 402 to move downward, so that the gas in the cavity of the terminal base 1 passes through the gas channel from the lower side of the valve core 4 to the upper side, and then enters the interior of the valve seat assembly through the vent 201, thereby achieving the ventilation function between the terminal base 1 and the valve seat assembly 5.
In this embodiment, when the medical gas terminal has a fault and needs maintenance, when the valve seat assembly 5 is disassembled by using a special tool, and when the cylindrical protrusion on the pressure plate 503 exits the vent 201, the valve element 4 contacts the sealing boss 202 again to realize sealing.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included in the scope of the present invention.
Claims (6)
1. A self-sealing structure of a medical gas terminal base is characterized by comprising a terminal base (1) and a valve seat assembly (5), wherein the terminal base (1) is of a cavity-shaped structure, one end of the cavity-shaped structure is provided with a threaded connector, a valve core (4) is arranged in the cavity-shaped structure, and the valve core (4) moves up and down along an inner cavity of the cavity-shaped structure; be equipped with maintenance valve (2) on the hickey, maintenance valve (2) are including sealed boss (202), and case (4) upward movement is connected the closure and is formed the self sealss structure of terminal base (1) with sealed boss (202) of maintenance valve (2) case (4) under the pneumatic force effect.
2. The self-sealing structure of a medical gas terminal base according to claim 1, wherein the maintenance valve (2) comprises a vent hole (201), a sealing boss (202) and a sealing ring groove (203), the maintenance valve (2) is of a cylindrical structure, a connecting thread is arranged outside the maintenance valve (2), the connecting thread is connected with the sealing ring groove (203), a first sealing ring (3) is arranged at the joint, the vent hole (201) is arranged in the middle of the maintenance valve (2), and the sealing ring groove (203) and the sealing boss (202) are combined and arranged at the lower part of the maintenance valve (2).
3. The medical gas terminal base self-sealing structure as claimed in claim 2, wherein the sealing ring groove (203) is tapered on one side, and the tapered surface of the sealing ring groove (203) restrains the first sealing ring (3) in the sealing ring groove (203).
4. A medical gas terminal base self-sealing structure according to claim 1 or 3, wherein the valve cartridge (4) comprises a sealing gasket (401) and a valve body (402), the sealing gasket (401) is arranged on the top of the valve body (402) and fixedly connected with the valve body (402), the valve body (402) is circumferentially and uniformly provided with gas channels, and the gas channels form the gas communication between the upper and lower sides and the inside and outside of the valve cartridge (4).
5. The medical gas terminal base self-sealing structure according to claim 4, wherein the valve seat assembly (5) comprises a connecting sleeve (501), a second sealing ring (502) and a pressure plate (503), the second sealing ring (502) is sleeved on the connecting sleeve (501), a thread is arranged on the connecting sleeve (501), the thread of the connecting sleeve (501) matches the threaded interface, and the terminal base (1) and the valve seat assembly (5) are connected.
6. The medical gas terminal base self-sealing structure as claimed in claim 5, wherein the pressure plate (503) is installed at the bottom of the valve seat assembly (5), the pressure plate (503) is a cylindrical protruding structure, the valve seat assembly (5) is connected with the terminal base (1), the cylindrical protruding structure of the pressure plate (503) passes through the vent (201) of the maintenance valve (2), and the cylindrical protruding structure acts on the valve body (402) to move downwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210479891.8A CN114893633B (en) | 2022-05-05 | 2022-05-05 | Self-sealing structure of medical gas terminal base |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210479891.8A CN114893633B (en) | 2022-05-05 | 2022-05-05 | Self-sealing structure of medical gas terminal base |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114893633A true CN114893633A (en) | 2022-08-12 |
| CN114893633B CN114893633B (en) | 2024-05-03 |
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ID=82719334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210479891.8A Active CN114893633B (en) | 2022-05-05 | 2022-05-05 | Self-sealing structure of medical gas terminal base |
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| Country | Link |
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| CN (1) | CN114893633B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6230607B1 (en) * | 1998-05-20 | 2001-05-15 | DENTALWERK BüRMOOS GESELLSCHAFT M.B.H. | Adjusting device for a pneumatic drive, particularly for a medical or dental instrument |
| CN1919368A (en) * | 2005-07-25 | 2007-02-28 | 伯尔拉工业有限公司 | Medical valve connector |
| CN201221655Y (en) * | 2008-04-30 | 2009-04-15 | 珠海市奥吉赛科技有限公司 | Medical gas port |
| CN201803024U (en) * | 2010-09-10 | 2011-04-20 | 钟正国 | Joint for pipeline dredging device |
| CN202646995U (en) * | 2012-06-09 | 2013-01-02 | 宁波健芝康医疗设备有限公司 | Gas terminal structure |
| CN204387544U (en) * | 2014-12-24 | 2015-06-10 | 四川港通医疗设备集团股份有限公司 | A kind of medical gas supply terminal unit with filtrating equipment |
-
2022
- 2022-05-05 CN CN202210479891.8A patent/CN114893633B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6230607B1 (en) * | 1998-05-20 | 2001-05-15 | DENTALWERK BüRMOOS GESELLSCHAFT M.B.H. | Adjusting device for a pneumatic drive, particularly for a medical or dental instrument |
| CN1919368A (en) * | 2005-07-25 | 2007-02-28 | 伯尔拉工业有限公司 | Medical valve connector |
| CN201221655Y (en) * | 2008-04-30 | 2009-04-15 | 珠海市奥吉赛科技有限公司 | Medical gas port |
| CN201803024U (en) * | 2010-09-10 | 2011-04-20 | 钟正国 | Joint for pipeline dredging device |
| CN202646995U (en) * | 2012-06-09 | 2013-01-02 | 宁波健芝康医疗设备有限公司 | Gas terminal structure |
| CN204387544U (en) * | 2014-12-24 | 2015-06-10 | 四川港通医疗设备集团股份有限公司 | A kind of medical gas supply terminal unit with filtrating equipment |
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| Publication number | Publication date |
|---|---|
| CN114893633B (en) | 2024-05-03 |
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