CN114893633B - Self-sealing structure of medical gas terminal base - Google Patents
Self-sealing structure of medical gas terminal base Download PDFInfo
- Publication number
- CN114893633B CN114893633B CN202210479891.8A CN202210479891A CN114893633B CN 114893633 B CN114893633 B CN 114893633B CN 202210479891 A CN202210479891 A CN 202210479891A CN 114893633 B CN114893633 B CN 114893633B
- Authority
- CN
- China
- Prior art keywords
- valve
- sealing
- terminal base
- sealing ring
- maintenance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 96
- 238000012423 maintenance Methods 0.000 claims abstract description 47
- 238000004891 communication Methods 0.000 claims description 2
- 230000000452 restraining effect Effects 0.000 claims 1
- 238000012360 testing method Methods 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 238000009434 installation Methods 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 2
- 230000001934 delay Effects 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
Classifications
-
- 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
-
- 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
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 structure, one end of the cavity structure is provided with a threaded interface, a valve core is arranged in the cavity structure, and the valve core moves up and down along an inner cavity of the cavity structure; the threaded interface is provided with a maintenance valve, the maintenance valve comprises a sealing boss, the valve core moves upwards, and the valve core is connected with the sealing boss of the maintenance valve to form a self-sealing structure of the terminal base under the action of gas force. By using the structure, the invention can realize the automatic sealing of the terminal base when the medical gas terminal is disassembled and maintained, and the terminal base is not required to be manually operated, is simple and convenient, can be independently installed on site in advance, and can not influence the on-site pipeline pressure test due to the good sealing effect.
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 used as a component part of the medical gas terminal and is a part of the terminal connected with a pipeline distribution system. When medical gas terminal breaks down and needs maintenance, in order not to influence the normal use of other terminals, every terminal except vacuum terminal should be equipped with a maintenance valve, and the terminal maintenance valve that prior art adopted at present is mainly manual, and the operation is troublesome, and improper operation can influence the normal use of other terminals when maintaining, delays the treatment. The automatic maintenance valve is adopted partially, or the structure is complex, the channel area is small, a throttling phenomenon can be generated, and the pressure drop of the terminal is overlarge; or can not be sealed, and the air leakage phenomenon exists.
The utility model patent application with the application number of 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, a sliding groove used for allowing the first steel pin and the second steel pin to pass through is 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. The medical gas terminal adopts the double-row steel pins to strengthen the locking and fixing of the gas plug and prevent the gas plug from accidentally popping up to hurt people in a ventilation state; the steel pin frames are the same half and are butted through the buckles, so that the disassembly and the installation are convenient; all sealing rings for sealing the gas terminal are all arranged on a valve seat, the valve seat can be independently taken down to replace the sealing rings under the condition that the base is ventilated, the gas source or the pipeline valve is not required to be closed, but the maintenance valve is required to be manually closed, and the effect of replacing the sealing rings for maintenance with gas is realized. However, the gas terminal adopting the technical scheme is complex in structure and difficult to install and detach; the base automatic sealing function has no structural characteristics when the terminal is maintained, so that the structural performance is unstable, and the sealing performance cannot be effectively ensured.
Disclosure of Invention
The invention aims at solving 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 structure, one end of the cavity structure is provided with a threaded interface, a valve core is arranged in the cavity structure, and the valve core moves up and down along the inner cavity of the cavity structure; the threaded interface is provided with a maintenance valve, the maintenance valve comprises a sealing boss, the valve core moves upwards, and the valve core is connected with the sealing boss of the maintenance valve to form a self-sealing structure of the terminal base under the action of gas force. By using the structure, the invention can realize the automatic sealing of the terminal base when the medical gas terminal is disassembled and maintained, and the terminal base is not required to be manually operated, is simple and convenient, can be independently installed on site in advance, and can not influence the on-site pipeline pressure test due to the good sealing effect.
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 structure, one end of the cavity structure is provided with a threaded interface, a valve core is arranged in the cavity structure, and the valve core moves up and down along an inner cavity of the cavity structure; the threaded interface is provided with a maintenance valve, the maintenance valve comprises a sealing boss, the valve core moves upwards, and the valve core is connected and closed with the sealing boss of the maintenance valve under the action of gas to form a self-sealing structure of the terminal base.
Further, the maintenance valve includes vent, sealing boss and sealing ring groove, and the maintenance valve is cylindrical structure, and the maintenance valve outside is equipped with the connecting thread, and the connecting thread is connected with sealing ring groove, and the junction is equipped with first sealing washer, and the vent sets up in the maintenance valve middle part, and the vent can insert specialized tool and install and dismantle, and sealing ring groove and sealing boss combination set up in the maintenance valve lower part.
Further, one side of the sealing ring groove is a conical surface, and the conical surface of the sealing ring groove constrains 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 installed and disassembled; the first sealing ring is arranged on the maintenance valve, so that gas leakage from a threaded connection position can be avoided;
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, and gas channels are uniformly arranged in the circumferential direction of the valve body and form the upper-lower and inner-outer gas communication of the valve core.
Further, the valve seat assembly comprises a connecting sleeve, a second sealing ring and a pressure plate, wherein the second sealing ring is sleeved on the connecting sleeve, threads are arranged on the connecting sleeve, the threads of the connecting sleeve are matched with the threaded interface, and the terminal base is connected with the valve seat assembly.
Further, the pressure plate is installed in disk seat sub-unit bottom, and the pressure plate is cylindrical protruding structure, and disk seat sub-unit is connected with the terminal base, and the cylindrical protruding structure of pressure plate passes the vent of maintenance valve, and cylindrical protruding structure acts on the valve body and moves downwards.
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 automatic maintenance valve effectively solves the problems that the automatic maintenance valve in the prior art is complex in structure, small in passage area and capable of generating a throttling phenomenon or incapable of sealing and generating a gas leakage phenomenon.
The method comprises the following steps:
1. the invention has simple structure and convenient installation and disassembly of the terminal base;
2. Compared with the prior art, the invention omits the spring, has self-sealing capability and large channel area, and can effectively realize the pressure drop of the terminal;
3. The invention combines the sealing gasket and the sealing boss, has good sealing effect, and does not influence the pressure test of the on-site pipeline under the condition of not installing the valve seat assembly.
Drawings
FIG. 1 is a schematic cross-sectional view of a front view of the present invention;
FIG. 2 is a schematic illustration of a service valve of the present invention;
FIG. 3 is a schematic illustration of a 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 marks in the figure: the valve comprises a terminal base, a 2-maintenance valve, a 201-vent, a 202-sealing boss, a 203-sealing ring groove, a 3-first sealing ring, a 4-valve core, a 401-sealing gasket, a 402-valve body, a 5-valve seat assembly, a 501-connecting sleeve, a 502-second sealing ring and a 503-pressure plate.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent.
In the present embodiment, the data is a preferred scheme, but is not intended to limit the present invention;
example 1
As shown in fig. 1-4, the present embodiment provides a self-sealing structure of a medical gas terminal base, which comprises 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 provided with a cavity structure, one end of the terminal base 1 is provided with a threaded interface which can be connected with a connecting sleeve 501 on the valve seat assembly 5, a valve core 4 is arranged in the cavity of the terminal base 1, a maintenance valve 2 is also arranged in the threaded interface of the terminal base 1, and the valve core 4 can move freely up and down in the cavity between the maintenance valve 2 and the terminal base 1.
In this embodiment, the maintenance valve 2 is connected with the terminal base 1 by inserting a special tool into the vent 201 to rotate clockwise, the bottom of the maintenance valve is provided with a sealing ring groove 203 for installing the first sealing ring 3, one side of the sealing ring groove 203 is a conical surface, the first sealing ring 3 can be restrained in the sealing ring groove 203, the first sealing ring 3 is prevented from falling off, and the bottom of the maintenance valve 2 is further provided with an annular sealing boss 202.
In this embodiment, the valve core 4 includes a sealing pad 401 and a valve body 402, the sealing pad 401 is fixedly connected with the valve body 402, and a plurality of gas channels which are vertically communicated and are peripherally and internally communicated are circumferentially arranged on the valve core 4. In the embodiment, the gas terminal base is free of a spring, the channel area is large, and the pressure drop of the terminal can be effectively realized;
example 2
The embodiment provides a self-sealing structure of a medical gas terminal base, which comprises 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 provided with a cavity structure, one end of the terminal base 1 is provided with a threaded interface which can be connected with a connecting sleeve 501 on the valve seat assembly 5, a valve core 4 is arranged in the cavity of the terminal base 1, a maintenance valve 2 is also arranged in the threaded interface of the terminal base 1, and the valve core 4 can move freely up and down 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 seal 502, and a platen 503. The connecting sleeve 501 can freely rotate relative to the valve seat assembly 5, the second sealing ring 502 is sleeved on the connecting sleeve 501, the pressure plate 503 is mounted 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, under the action of the gas force, the valve core 4 moves upwards, the sealing gasket 401 contacts with the sealing boss 202 of the maintenance valve 2, and the sealing gasket 401 is deformed in advance to form self-sealing, and in this embodiment, the sealing gasket 401 and the sealing boss are combined, so that the sealing effect is good, and the pressure test of the on-site pipeline is not affected under the condition that the valve seat assembly 5 is not installed.
In this embodiment, when the valve seat assembly 5 is connected with the terminal base 1, the cylindrical protruding structure on the platen 503 passes through the air vent 201 of the maintenance valve 2, acts on the valve body 402 to apply downward, and the air in the cavity of the terminal base 1 passes through the air channel from below the valve core 4 to above, and then enters the valve seat assembly through the air vent 201, so as to realize the ventilation function of the terminal base 1 and the valve seat assembly 5.
In this embodiment, when the medical gas terminal fails and maintenance is required, and the valve seat assembly 5 is disassembled by using a special tool, the valve core 4 is again in contact with the sealing boss 202 to realize sealing when the cylindrical boss on the pressure plate 503 is withdrawn from the vent 201.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the particular embodiments disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.
Claims (2)
1. The self-sealing structure of the medical gas terminal base is characterized by comprising a terminal base (1) and a valve seat assembly (5), wherein the terminal base (1) is provided with a cavity structure, one end of the cavity structure is provided with a threaded interface, a valve core (4) is arranged in the cavity structure, and the valve core (4) moves up and down along the inner cavity of the cavity structure; the threaded interface is provided with a maintenance valve (2), the maintenance valve (2) comprises a sealing boss (202), the valve core (4) moves upwards, and the valve core (4) is connected with the sealing boss (202) of the maintenance valve (2) to form a self-sealing structure of the terminal base (1) under the action of gas force;
The maintenance valve (2) comprises a vent (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 connecting position, the vent (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);
one side of the sealing ring groove (203) is a conical surface, and the conical surface of the sealing ring groove (203) is used for restraining the first sealing ring (3) in the sealing ring groove (203);
The valve core (4) comprises a sealing gasket (401) and a valve body (402), the sealing gasket (401) is arranged at the top of the valve body (402) and fixedly connected with the valve body (402), gas channels are uniformly arranged in the circumferential direction of the valve body (402), and the gas channels form the upper and lower and inner and outer gas communication of the valve core (4);
the valve seat assembly (5) comprises a connecting sleeve (501), a second sealing ring (502) and a pressure plate (503), wherein the second sealing ring (502) is sleeved on the connecting sleeve (501), threads are arranged on the connecting sleeve (501), the threads of the connecting sleeve (501) are matched with the threaded interface, and the terminal base (1) and the valve seat assembly (5) are connected;
The gas terminal base eliminates the spring, has large channel area and can effectively realize the pressure drop of the terminal.
2. The self-sealing structure of a medical gas terminal base according to claim 1, characterized in that the pressure plate (503) is mounted 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 CN114893633A (en) | 2022-08-12 |
| CN114893633B true CN114893633B (en) | 2024-05-03 |
Family
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 |
Country Status (1)
| Country | Link |
|---|---|
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114893633A (en) | 2022-08-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114893633B (en) | Self-sealing structure of medical gas terminal base | |
| CN201190860Y (en) | Quick connector for air conditioner connecting tube | |
| US8181933B2 (en) | Pipe joint | |
| CN112503045B (en) | Hydraulic valve assembly | |
| CN211272952U (en) | Medical gas terminal | |
| CN212775685U (en) | Hard sealing switch ball valve | |
| CN111306382A (en) | Parallelism self-adjusting plane sealing device | |
| CN218674093U (en) | Pressurization detection device of lamp | |
| CN210318697U (en) | Automatic gas charging connector who keeps apart | |
| CN220397271U (en) | Gas valve for clip-type furnace | |
| CN205226389U (en) | Single valve core gas accuse valve | |
| CN217271922U (en) | Split type medical gas terminal of steel ball structure | |
| CN214535681U (en) | Valve for gas bottle | |
| CN213332397U (en) | Gas supply system terminal device with maintenance valve | |
| CN218719059U (en) | Gas self-closing valve with plug valve | |
| CN211649397U (en) | Parallelism self-adjusting plane sealing device | |
| CN112483881B (en) | Fuel cell automobile safety self-locking fast plug high-pressure hydrogenation gun | |
| CN218972097U (en) | Fluid connector | |
| CN210153250U (en) | Novel push type water outlet structure | |
| CN220397272U (en) | Gas valve for clip-type furnace | |
| CN219263489U (en) | Low flow resistance valve core for fluid connector | |
| CN220980306U (en) | Fluid connector | |
| CN220979607U (en) | Fire-retardant type base of oil tank respirator | |
| CN218598818U (en) | Regulating valve with high sealing performance | |
| CN217713769U (en) | double-H valve assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant |