CN114233902A - Gauge front pipe fitting capable of being automatically closed in case of pressure loss - Google Patents
Gauge front pipe fitting capable of being automatically closed in case of pressure loss Download PDFInfo
- Publication number
- CN114233902A CN114233902A CN202111321175.9A CN202111321175A CN114233902A CN 114233902 A CN114233902 A CN 114233902A CN 202111321175 A CN202111321175 A CN 202111321175A CN 114233902 A CN114233902 A CN 114233902A
- Authority
- CN
- China
- Prior art keywords
- locking
- pipe fitting
- pressure
- case
- valve core
- 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.)
- Pending
Links
Images
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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The utility model provides a pressure-loss self-closing's pipe fitting before table, including columniform pipe fitting casing, pipe fitting casing both ends are equipped with connecting thread, pipe fitting casing both ends are equipped with pressure delivery outlet and pressure delivery outlet respectively, be equipped with the case in the pipe fitting casing, the case is close to pressure delivery outlet and is the cylinder piece, the case is close to pressure delivery outlet and is the cone, cone top diameter is less than pressure delivery outlet, the case both sides are equipped with input spring and output spring respectively, the case keeps in the pipe fitting casing under the effect of both sides spring. Through setting up gliding case in the pipe fitting, the case both sides are passed through the spring and are kept at fixed position, and when the meter that the output is connected appeared leaking or burst the decompression, the delivery outlet was plugged up to the case and the locking spindle is carried out, exports the locking spindle state through the terminal simultaneously, reminds maintenance personal to inspect the maintenance.
Description
Technical Field
The invention relates to the field of pressure pipelines, in particular to a gauge front pipe fitting capable of being automatically closed in case of pressure loss.
Background
In a pressure pipeline system with a traditional structure, measurement components such as a pressure gauge, a flowmeter and the like are arranged for measuring the flowing pressure and flow of liquid in a pipeline. The pressure measuring point is generally selected at the straight line part of the pipeline, and the pressure gauge displayed on site is selected on the horizontal pipeline and is provided with a hole at the top or the side for pressure measurement. After the pressure taking point is selected, a stop valve is additionally arranged between the pressure measuring point and the pressure gauge, so that the maintenance or the replacement of the pressure gauge is facilitated. However, if the pressure gauge is only of purely mechanical construction for in-situ display, there is no associated electrical signal to monitor, and maintenance personnel may not be able to find it in time when the gauge leaks or when the front block valve fails to spray water. Especially when the front closing valve breaks or the pressure gauge drops and other serious faults, unattended automation equipment can spray a large amount of leaked liquid in a short time, and huge loss is caused. Often, the observation meter is checked on site after equipment is subjected to voltage loss, outage or other indirect faults, and then the pressure measurement component is repaired and replaced.
Disclosure of Invention
The invention aims to solve the technical problem of providing a gauge front pipe fitting capable of being automatically closed under the condition of pressure loss, guiding noise to a specific position, sealing a pipe body when a pressure gauge leaks, and sending out a fault state.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the utility model provides a pressure-loss self-closing's pipe fitting before table, including columniform pipe fitting casing, pipe fitting casing both ends are equipped with connecting thread, pipe fitting casing both ends are equipped with pressure delivery outlet and pressure delivery outlet respectively, be equipped with the case in the pipe fitting casing, the case is close to pressure delivery outlet and is the cylinder piece, the case is close to pressure delivery outlet and is the cone, cone top diameter is less than pressure delivery outlet, the case both sides are equipped with input spring and output spring respectively, the case keeps in the pipe fitting casing under the effect of both sides spring.
In the preferred scheme, a locking groove is formed in the cylindrical block, a valve core locking ingot is arranged on the inner side of the pipe wall of the pipe fitting shell, the valve core locking ingot extends out of the pipe wall under the action of an elastic body, the valve core locking ingot is located on one side of the cone when the valve core is located at the position under the balance action of springs on two sides, and the width and the depth of the locking groove correspond to those of the valve core locking ingot.
In a preferred embodiment, the spool locking structure is: the T-shaped locking spindle is connected with a locking spindle groove in the pipe wall of the pipe fitting shell in a sliding mode, and a locking spindle spring is arranged between the rear end of the T-shaped locking spindle and the bottom of the locking spindle groove.
In a preferred embodiment, the spool lock is linked to a lock state terminal, and the lock state terminal indicates whether the spool is in a locked state or not by an on-off state.
In a preferred embodiment, the locking state terminal includes a connection terminal and a locking switch electrically connected to the connection terminal, a moving contact of the locking switch is connected to one end of a locking link, and the other end of the locking link is fixedly connected to an end of a T-shaped locking bar.
In the preferred scheme, the inner side of the pipe fitting shell is provided with a locking ingot guide ring which is in sliding connection with the outer wall of the cylindrical block, and the locking ingot guide ring
And through holes communicated with the chambers on the two sides are formed along the circumferential direction.
The pipe fitting shell is formed by connecting an input end pipe body and an output end pipe body in a threaded manner.
The pressure output hole is provided with a conical hole at one side close to the cone, the conical angle of the conical hole is equal to the conical angle of the cone, the conical hole is matched with the top end of the cone in shape, the front end of the cone is embedded with a sealing ring, and the sealing ring is used for sealing with the conical hole.
The T-shaped locking ingot is sealed with the inner wall of the locking ingot groove.
According to the gauge front pipe fitting capable of being automatically closed in case of pressure loss, the sliding valve core is arranged in the pipe fitting, two sides of the valve core are kept at fixed positions through the springs, when a gauge connected with an output end leaks or bursts and loses pressure, the valve core blocks an output hole and locks a spindle, and meanwhile, the spindle locking state is output through the terminal, so that maintenance personnel are reminded to check and maintain.
Drawings
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
FIG. 1 is a schematic structural view of a front tube of the present invention;
FIG. 2 is an exploded view of the front tube structure;
FIG. 3 is a schematic structural view of the valve cartridge;
FIG. 4 is a cross-sectional view of the front tube;
FIG. 5 is a cross-sectional view of a preferred watch bezel configuration;
FIG. 6 is a second cross-sectional view of a preferred watch bezel configuration;
FIG. 7 is an enlarged partial schematic view of FIG. 6;
fig. 8 is a three-sectional view of a preferred watch front tube structure.
In the figure: the locking device comprises an input end pipe body 1, an output end pipe body 2, a valve core 3, a cylindrical block 31, a cone 32, a locking groove 33, a spring accommodating groove 34, an input end spring 4, an output end spring 5, a pressure output hole 6, a pressure output hole 7, a conical hole 71, a valve core locking spindle 8, a locking spindle groove 81, a T-shaped locking spindle 82, a locking spindle spring 83, a locking spindle connecting rod 84, a locking spindle state terminal 9, a locking spindle switch 91, a connecting terminal 92 and a locking spindle guide ring 10.
Detailed Description
As shown in fig. 1-4, a gauge front pipe fitting capable of automatically closing under pressure loss comprises a cylindrical pipe fitting housing, connecting threads are arranged at two ends of the pipe fitting housing, a pressure output hole 6 and a pressure output hole 7 are respectively arranged at two ends of the pipe fitting housing, a valve core 3 is arranged in the pipe fitting housing, the valve core 3 is arranged in the pipe fitting housing, a cylindrical block 31 is arranged close to the pressure output hole 6 and is a cone 32, the diameter of the top end of the cone 32 is smaller than that of the pressure output hole 7, an input end spring 4 and an output end spring 5 are respectively arranged at two sides of the valve core 3, the valve core 3 is kept in the pipe fitting housing under the action of the springs at two sides, the pressure output hole 6 side of the pipe fitting housing is connected with a measured pipeline main body, the pressure output hole 7 side of the pipe fitting housing is connected with a pressure gauge, when normal, the two sides of the valve core 3 are filled with pressure-equalizing liquid, the springs at two sides of the valve core 3 are in balance, the valve core is fixed, the pressure P1= P2 at the two sides, when the manometer is damaged or leaked, the pressure output hole 6 is communicated with the atmosphere, P1 is greater than P2, and the input pressure pushes the cone 32 to seal the pressure output hole 6 to prevent the liquid from leaking.
The preferable scheme is as shown in fig. 5, a locking groove 33 is arranged on the cylindrical block 31, a valve core locking spindle 8 is arranged on the inner side of the pipe wall of the pipe shell, the valve core locking spindle 8 extends out of the pipe wall under the action of an elastic body, the valve core locking spindle 8 is positioned on one side of the cone 32 when the valve core 3 is in a position under the action of the balance of springs on two sides, the width and the depth of the locking groove 33 correspond to those of the valve core locking spindle 8, and when leakage occurs, the valve core 3 is locked by the valve core locking spindle 8.
As shown in fig. 7, the valve core locking bar 8 has the following structure: the T-shaped locking ingot 82 is in sliding connection with the locking ingot groove 81 in the pipe wall of the pipe fitting shell, a locking ingot spring 83 is arranged between the rear end of the T-shaped locking ingot 82 and the bottom of the locking ingot groove 81, when the pressure is lost, the conical surface of the cone 32 pushes the T-shaped locking ingot 82 to retract upwards, and when the T-shaped locking ingot 82 meets the locking ingot groove 81, the T-shaped locking ingot 82 enters the groove under the action of elasticity to lock the valve core.
As shown in fig. 6 and 7, the spool lock 8 is linked with the lock status terminal 9, and the lock status terminal 9 indicates whether the spool 3 is locked or not in the on-off state.
Preferably, as shown in fig. 7, the locking state terminal 9 includes a connection terminal 92 and a locking switch 91 electrically connected thereto, a movable contact of the locking switch 91 is connected to one end of the locking link 84, the other end of the locking link 84 is fixedly connected to an end of the T-shaped locking bar 82, when the valve element enters a locking state to the right, the locking switch 91 is subjected to a pulse of closing first and then opening, and the detecting device detects the pulse to determine whether a voltage loss occurs.
In a preferred embodiment, as shown in fig. 8, the inner side of the pipe casing is provided with a locking bar guide ring 10 slidably connected to the outer wall of the cylindrical block 31, the locking bar guide ring 10 is provided with a through hole communicating the chambers at both sides along the circumferential direction, and the valve core can be guided by the locking bar guide ring 10 with the through hole while keeping both sides communicating.
As shown in fig. 2, the pipe casing is composed of an input end pipe body 1 and an output end pipe body 2 which are connected by screw threads.
As shown in fig. 4-6, the pressure output hole 7 is provided with a tapered hole 71 at a side close to the cone 32, the tapered hole 71 and the cone 32 have the same taper angle, the tapered hole 71 and the top end of the cone 32 are matched in shape, and a sealing ring is embedded at the front end of the cone 32 and is used for sealing the tapered hole 71.
The T-shaped locking bar 82 is sealed with the inner wall of the locking bar groove 81.
Claims (9)
1. The utility model provides a pipe fitting before table of decompression self-closing which characterized in that: including columniform pipe fitting casing, pipe fitting casing both ends are equipped with connecting thread, pipe fitting casing both ends are equipped with pressure delivery outlet (6) and pressure delivery outlet (7) respectively, be equipped with case (3) in the pipe fitting casing, case (3) are close to pressure delivery outlet (6) and are cylinder piece (31), case (3) are close to pressure delivery outlet (7) and are cone (32), cone (32) top diameter is less than pressure delivery outlet (7), case (3) both sides are equipped with input spring (4) and output spring (5) respectively, case (3) keep in the pipe fitting casing under the effect of both sides spring.
2. The pressure-loss automatic closing meter front pipe fitting is characterized in that a locking groove (33) is formed in the cylindrical block (31), a valve core locking ingot (8) is arranged on the inner side of the pipe wall of the pipe fitting shell, the valve core locking ingot (8) extends out of the pipe wall under the action of an elastic body, the valve core locking ingot (8) is located on one side of the cone (32) when the valve core (3) is located at the position under the action of balance of springs on two sides, and the width and the depth of the locking groove (33) correspond to those of the valve core locking ingot (8).
3. The gauge front pipe fitting capable of automatically closing under the condition of pressure loss according to claim 2, characterized in that the valve core locking ingot (8) has the structure that: the T-shaped locking ingot (82) is in sliding connection with the locking ingot groove (81) in the pipe wall of the pipe fitting shell, and an ingot locking spring (83) is arranged between the rear end of the T-shaped locking ingot (82) and the bottom of the locking ingot groove (81).
4. The gauge front pipe fitting capable of being automatically closed under the condition of pressure loss according to claim 3, characterized in that the valve core locking bar (8) is linked with a locking bar state terminal (9), and the locking bar state terminal (9) is used for indicating whether the valve core (3) is in a locking state or not by using an on-off state.
5. The decompression automatic closing watch front pipe fitting according to claim 4, characterized in that the locking state terminal (9) comprises a connecting terminal (92) and a locking switch (91) electrically connected with the connecting terminal, a movable contact of the locking switch (91) is connected with one end of the locking connecting rod (84), and the other end of the locking connecting rod (84) is fixedly connected with the end of the T-shaped locking bar (82).
6. A pressure-loss self-closing tube before watch according to claim 1, characterized in that the inner side of the tube housing is provided with a locking guide ring (10) slidably connected with the outer wall of the cylindrical block (31), the locking guide ring (10)
And through holes communicated with the chambers on the two sides are formed along the circumferential direction.
7. A pressure-loss automatic closing meter front pipe fitting as claimed in claim 1, characterized in that the pipe fitting housing is composed of an input end pipe body (1) and an output end pipe body (2) which are in threaded connection.
8. The gauge front pipe fitting capable of being automatically closed under the condition of pressure loss as claimed in claim 1, characterized in that the pressure output hole (7) is provided with a tapered hole (71) at one side close to the cone (32), the tapered hole (71) and the cone (32) have the same taper angle, the tapered hole (71) is matched with the top end of the cone (32) in shape, and the front end of the cone (32) is embedded with a sealing ring which is used for sealing the tapered hole (71).
9. A pressure-loss automatic closing watch front pipe fitting as claimed in claim 3, characterized in that the T-shaped locking bar (82) is sealed with the inner wall of the locking bar groove (81).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111321175.9A CN114233902A (en) | 2021-11-09 | 2021-11-09 | Gauge front pipe fitting capable of being automatically closed in case of pressure loss |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111321175.9A CN114233902A (en) | 2021-11-09 | 2021-11-09 | Gauge front pipe fitting capable of being automatically closed in case of pressure loss |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114233902A true CN114233902A (en) | 2022-03-25 |
Family
ID=80748795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111321175.9A Pending CN114233902A (en) | 2021-11-09 | 2021-11-09 | Gauge front pipe fitting capable of being automatically closed in case of pressure loss |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114233902A (en) |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2203388Y (en) * | 1994-10-08 | 1995-07-12 | 胜利石油管理局现河采油厂 | Auto-shut leakproof valve |
| CN2246739Y (en) * | 1995-12-29 | 1997-02-05 | 潘咏浚 | New structure of pressure controller |
| CN1240261A (en) * | 1998-06-20 | 2000-01-05 | 刘继华 | No pressure automatic stop valve |
| CN2432571Y (en) * | 2000-07-27 | 2001-05-30 | 刘明 | Leakage-proof device for pressure gage |
| CN2525327Y (en) * | 2002-01-18 | 2002-12-11 | 臧宝成 | Pressur meter self seal control valve |
| CN202349316U (en) * | 2011-10-21 | 2012-07-25 | 宁波力利智能控制设备有限公司 | Anti-surging device for gas pressure regulator |
| CN202597831U (en) * | 2012-06-05 | 2012-12-12 | 贵州电子信息职业技术学院 | Automatic water stop valve in water supply cut-off |
| CN203241189U (en) * | 2013-05-17 | 2013-10-16 | 窦永 | Environmentally-friendly pressure gauge joint |
| CN105424269A (en) * | 2015-12-31 | 2016-03-23 | 天津春华发科技有限公司 | Pipeline pressure gauge |
| CN105443823A (en) * | 2014-09-30 | 2016-03-30 | 天津市泛凯科贸有限公司 | Leakage-proof valve capable of automatically closing during water stopping |
| CN105508676A (en) * | 2016-01-07 | 2016-04-20 | 中山市雅西环保科技有限公司 | Bidirectional flow control valve |
| CN109115398A (en) * | 2017-06-26 | 2019-01-01 | 淮安市冰青建设工程管理有限公司 | Pressure gauge explosion-proof leakage-proof protector |
| CN208476454U (en) * | 2018-06-13 | 2019-02-05 | 慈溪市普莱斯仪表有限公司 | A kind of pressure gauge buffer unit |
| CN211901720U (en) * | 2020-03-20 | 2020-11-10 | 中石化重庆天然气管道有限责任公司 | Pipeline protection device |
| CN213039892U (en) * | 2020-05-23 | 2021-04-23 | 冶金自动化研究设计院 | Bidirectional stall protection safety valve |
-
2021
- 2021-11-09 CN CN202111321175.9A patent/CN114233902A/en active Pending
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2203388Y (en) * | 1994-10-08 | 1995-07-12 | 胜利石油管理局现河采油厂 | Auto-shut leakproof valve |
| CN2246739Y (en) * | 1995-12-29 | 1997-02-05 | 潘咏浚 | New structure of pressure controller |
| CN1240261A (en) * | 1998-06-20 | 2000-01-05 | 刘继华 | No pressure automatic stop valve |
| CN2432571Y (en) * | 2000-07-27 | 2001-05-30 | 刘明 | Leakage-proof device for pressure gage |
| CN2525327Y (en) * | 2002-01-18 | 2002-12-11 | 臧宝成 | Pressur meter self seal control valve |
| CN202349316U (en) * | 2011-10-21 | 2012-07-25 | 宁波力利智能控制设备有限公司 | Anti-surging device for gas pressure regulator |
| CN202597831U (en) * | 2012-06-05 | 2012-12-12 | 贵州电子信息职业技术学院 | Automatic water stop valve in water supply cut-off |
| CN203241189U (en) * | 2013-05-17 | 2013-10-16 | 窦永 | Environmentally-friendly pressure gauge joint |
| CN105443823A (en) * | 2014-09-30 | 2016-03-30 | 天津市泛凯科贸有限公司 | Leakage-proof valve capable of automatically closing during water stopping |
| CN105424269A (en) * | 2015-12-31 | 2016-03-23 | 天津春华发科技有限公司 | Pipeline pressure gauge |
| CN105508676A (en) * | 2016-01-07 | 2016-04-20 | 中山市雅西环保科技有限公司 | Bidirectional flow control valve |
| CN109115398A (en) * | 2017-06-26 | 2019-01-01 | 淮安市冰青建设工程管理有限公司 | Pressure gauge explosion-proof leakage-proof protector |
| CN208476454U (en) * | 2018-06-13 | 2019-02-05 | 慈溪市普莱斯仪表有限公司 | A kind of pressure gauge buffer unit |
| CN211901720U (en) * | 2020-03-20 | 2020-11-10 | 中石化重庆天然气管道有限责任公司 | Pipeline protection device |
| CN213039892U (en) * | 2020-05-23 | 2021-04-23 | 冶金自动化研究设计院 | Bidirectional stall protection safety valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20200165915A1 (en) | Graded pressure drop type detection system and detection method of borehole cracks | |
| CN100389280C (en) | Flow regulating valve with flow state indicating unit especially adaptable for gas container | |
| CN208268492U (en) | A kind of pipeline burst monitoring device | |
| CN114233902A (en) | Gauge front pipe fitting capable of being automatically closed in case of pressure loss | |
| JPS58120123A (en) | Detector for quantity of measurement in duct system | |
| CN112147500B (en) | Gas relay calibration device | |
| CN110017939A (en) | Pressure gauge is shorted | |
| CN203148637U (en) | Device detecting leakage, blockage and damaged filtering membrane of transfusion system | |
| CN201662480U (en) | Special plinth for checking SF6 density relay | |
| CN204085808U (en) | A kind of air-tightness detection device | |
| CN108613909B (en) | Rock mass loosening ring testing method based on drilling water pressing effect | |
| CN209927386U (en) | Novel valve leakage monitoring device | |
| CN203083622U (en) | Anti-sulfur critical velocity flowmeter | |
| CN209356113U (en) | A kind of measure and control device and sulfur hexafluoride pressure detecting system | |
| CN219495552U (en) | Tee joint for on-line verification and calibration of pipeline pressure gauge | |
| CN202013260U (en) | Fuel gas micromanometer pressure-measuring device | |
| JP5096879B2 (en) | Check valve check method and apparatus for check valve | |
| CN218816371U (en) | Isolated conduction pressure gauge cock | |
| CN210487197U (en) | Pipeline valve pressure test device | |
| CN219473021U (en) | Safety leak-proof connector for instrument installation | |
| CN2303963Y (en) | Oil-leakage monitoring alarming device for use under pressure-maintaining condition | |
| CN109000001A (en) | It is a kind of can on-line calibration instrument valve group and its working method | |
| CN204924546U (en) | Pressure measurement end cap | |
| CN216559584U (en) | Air tightness detection device for bridge girder | |
| CN209639776U (en) | A kind of online inserted electromagnet flow meter |
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 |