CN201196340Y - Gas pressure regulator - Google Patents
Gas pressure regulator Download PDFInfo
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- CN201196340Y CN201196340Y CNU2008200355314U CN200820035531U CN201196340Y CN 201196340 Y CN201196340 Y CN 201196340Y CN U2008200355314 U CNU2008200355314 U CN U2008200355314U CN 200820035531 U CN200820035531 U CN 200820035531U CN 201196340 Y CN201196340 Y CN 201196340Y
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Abstract
The utility model relates to a gas regulator with the function of automatic diffusing and reducing pressure under the condition of excessive pressure, which comprises a valve body and a main pressure regulating valve. The main pressure regulating valve is characterized in that an upper shell is provided with a venthole; the upper end of a tray is provided with a diffusion spring and a diffusion valve port which passes through an epithelial membrane and the tray and is connected with a central opening of the tray; a screw passes through the diffusion valve port and the top of the screw is connected with the top of the diffusion spring; and the diffusion valve port is hermetically matched with the lower end of the screw under the action of the diffusion spring. When the gas regulator is operated, if the pressure of a gas outlet exceeds the pressure valve of diffusion motion, the main epithelial membrane and the tray drive the diffusion valve port to overcome the acting force of the diffusion spring and move upwards along the screw, so as to make the diffusion valve port and the screw deviated from the state of hermetical matching, and then gas enters into the upper part of the epithelial membrane from the diffusion valve port and is exhausted from the venthole, so that the gas regulator has the function of safe pressure reduction; and when the pressure of the gas outlet is reduced to the pressure valve set for diffusion, the diffusion valve port is closed and the gas regulator restores normal operation of pressure regulation.
Description
Technical field
The utility model relates to a kind of city gas transmission pipeline network corollary equipment that belongs to, and is specifically related to a kind of gas pressure regulator, governor.
Background technique
At present, gas pressure regulator, governor is widely used on the city gas conveyance conduit.
Chinese patent literature notification number CN2636019 discloses a kind of gas pressure regulator, governor, by the main film between valve body, loam cake, bottom, valve port, the diaphragm lower casing that is connected valve body top, diaphragm upper casing, the diaphragm upper and lower shell, the valve rod being located at the balance film between homophony spring, balance film inner pallet and the loam cake on the diaphragm support and passing loam cake, balance film, balance film inner pallet, main film, pallet and be connected with valve, and the formations such as valve that are connected valve rod bottom, valve port below.Also be provided with shut-off means in the valve body chamber, investing inboard, valve body air outlet has the cut-out control mechanism.
Chinese patent literature notification number CN2432411 discloses a kind of gas pressure regulator, governor, and the valve body of pressure governor adopts the header structure, in establish valve seat and valve port; Wherein safety cut-off valve and main pressure regulator valve are connected on the same header; Main voltage regulator adopts the lever form to connect the horizontal type structure of valve port with horizontal valve rod; Safety cut-off valve adopts the pin that links to each other with the top cover to block the cut-out stem structure.
For the problem of the air outlet overvoltage that solves gas pressure regulator, governor, need on the pipeline of place, gas pressure regulator, governor air outlet, install one and diffuse valve, to play the effect of safe step-down when the overvoltage.Chinese patent literature notification number CN2553213 discloses a kind of valve that diffuses that is used on the gas pipeline, and it comprises the upper valve body with pressure relief opening and has the following valve body that communicates with fuel gas pipeline.
Above-mentioned the deficiencies in the prior art part is: with must install one on the pipeline that the air outlet of gas pressure regulator, governor links to each other and diffuse valve, therefore increased cost, be not easy to install and safeguard.
The model utility content
Technical problem to be solved in the utility model provides has a kind of gas pressure regulator, governor that diffuses buck functionality automatically under overpressure situation.
For solving the problems of the technologies described above, the utility model provides a kind of gas pressure regulator, governor, comprising: valve body, be located at the main pressure regulator valve and the safety cut-off valve of the valve port both sides of valve body; Described main pressure regulator valve comprises: housing, be located at main epithelium in the housing, be located at pallet on the main epithelium, be located at the pallet upper end pressure-regulating device, with vertical screw rod that links to each other of pallet and the piston drive that links to each other with the lower end of screw rod; It is characterized in that: described main pressure regulator valve also comprises: the built-in valve that diffuses; This built-in valve that diffuses comprises: be located at the spring that diffuses of pallet upper end, and pass the central opening of described main epithelium and pallet and link to each other with pallet diffuse valve port; Diffuse and be hermetic seal between valve port and the main epithelium; Described screw rod passes and describedly diffuses valve port and its top links to each other with the top of diffusing spring; Under the effect of diffusing spring, the lower end of diffusing valve port and screw rod is sealed and matched.
In the technique scheme, described screw rod be circular cone portion with the described portion of matching of diffusing valve port, this circular cone portion is provided with seal ring; The lower end mouth of diffusing valve port is horn-like opening, and under the effect of diffusing spring, this circular cone portion is sealed and matched with the lower end mouth of diffusing valve port.
In the technique scheme, described pressure-regulating device comprises: be located at the main pressure regulator spring on the pallet, the pressure adjusting nut of being located at main pressure regulator spring upper end and linking to each other with case top; The internal diameter of main pressure regulator spring is greater than the external diameter that diffuses spring, and described screw rod and diffuse spring and be located in the main pressure regulator spring.
Described housing comprises upper shell and lower shell body, and the edge of main epithelium is located between upper shell and the lower shell body; On upper shell, be provided with vent; On vent, be provided with air door.
Described housing comprises upper shell and lower shell body, and the edge of main epithelium is located between upper shell and the lower shell body; On upper shell, be provided with vent; Between the inner chamber of vent and upper shell, be provided with the unidirectional spring sheet.
The described valve port that diffuses is an inverted T-shape, diffuses between valve port and the main epithelium and is provided with seal ring; Fix by a nut and pallet after diffusing the central opening that valve port passes described main epithelium and pallet.
In the technique scheme, also comprise the valve body that links to each other with described main pressure regulator valve; Valve body comprises: suction port, air outlet and valve port; Described suction port and air outlet communicate through described valve port; Be provided with the PRESSURE PIPE interface on lower shell body, be connected with built-in PRESSURE PIPE on the PRESSURE PIPE interface, the outer wall of the air outlet of described valve body is provided with the PRESSURE PIPE interface; Built-in PRESSURE PIPE stretches into valve body by this PRESSURE PIPE interface and extends to outside the air outlet; Be pipe seal between built-in PRESSURE PIPE and the PRESSURE PIPE interface.
Described piston drive comprises: lever, pass the valve stem passage of main pressure regulator valve and extend to the valve rod of described valve port front end and be located at valve stem end and the pressure regulation valve pad relative with described valve port; The fulcrum of lever is hinged mutually with the inwall of housing bottom, and the dynamic action point of lever is hinged mutually with the bottom of described screw rod, and the drag effect point of lever is hinged mutually with the front end of described valve rod.
The utlity model has positive effect: be provided with the built-in valve that diffuses in (1) gas pressure regulator, governor of the present utility model, under the overpressure situation of the air outlet of valve body, can diffuse step-down automatically, thereby needn't with pipeline that the air outlet of gas pressure regulator, governor links to each other on install and diffuse valve, reduced relevant cost, be convenient to install and safeguard.(2) in the utility model, under the effect of diffusing spring, the circular cone portion that the lower end of screw rod is provided with seal ring is sealed and matched with the trumpet-shaped lower end mouth of diffusing valve port, and the reliability that is sealed and matched is better.(3) in the utility model, pressure-regulating device comprises: be located at the main pressure regulator spring on the pallet, the pressure adjusting nut of being located at main pressure regulator spring upper end and linking to each other with the top of upper casing; The internal diameter of main pressure regulator spring is greater than the external diameter that diffuses spring, and described screw rod and diffuse spring and be located in the main pressure regulator spring.The pressure adjusting nut is used to regulate the pressure of main pressure regulator spring, thereby regulates the range of regulation of gas pressure regulator, governor; Described screw rod and diffuse spring and be located in the main pressure regulator spring is beneficial to save the space and be convenient to and installs.(4) built-in diffusing in the valve of the present utility model, diffusing between valve port and the main epithelium of inverted T-shape realizes hermetic seal by seal ring, and under the effect of diffusing spring, the lower end of diffusing valve port and screw rod is sealed and matched, and keeps isolated with the air pressure between upper and lower two chambers of guaranteeing main epithelium.(5) in the utility model,, when not hindering ventilation, can prevent that foreign matter from entering in the main pressure regulator valve housing being provided with air door on the vent or between the inner chamber of vent and upper shell, being provided with the unidirectional spring sheet.(6) in the utility model, built-in PRESSURE PIPE is used for the air pressure of the air outlet eluting gas of valve body is passed in the chamber of main epithelium below; The end of built-in PRESSURE PIPE extends to outside the air outlet, in order to avoid the interference of the gas of the higher pressure of described air outlet medial extremity.
Description of drawings
Fig. 1 is the cross-sectional view of embodiment 1 gas pressure regulator, governor.
Fig. 2 is the A-A view of Fig. 1.
Fig. 3 is the cross-sectional view of embodiment 2 gas pressure regulator, governor.
Each label is respectively among the figure:
The a--valve body, a1--valve port, b--main pressure regulator valve, the c--safety cut-off valve, 1--unidirectional spring sheet, 2--vent, the 3--housing, 3-1--upper shell, 3-2--lower shell body, the 3-3--inner chamber, 4--master's epithelium, 5--pallet, the 6--nut, 7--Safety relief valve mouth, 8--main pressure regulator spring, 9--diffuses spring, 10--screw rod, 10-1--circular cone portion, 11--pressure adjusting nut, 12--air door, 13--lever, 14--PRESSURE PIPE interface, 15--valve rod, 20--pressure regulation valve pad, the 41--suction port, the 42--air outlet, the built-in PRESSURE PIPE of 43--, 44--PRESSURE PIPE interface.
Embodiment
(embodiment 1)
See Fig. 1-2, gas pressure regulator, governor of the present utility model comprises: valve body a, be located at the main pressure regulator valve b and the safety cut-off valve c of the valve port a1 both sides of valve body a.
Safety cut-off valve is used in the valve body air outlet 42 end pressure superpressures or when under-voltage, the valve port of inaccessible described valve body to cut off air-flow, reaches the purpose of safety cut-off.
Described main pressure regulator valve b comprises: by the housing 3 that upper shell 3-1 and lower shell body 3-2 constitute, be provided with main epithelium 4 between upper shell 3-1 and the lower shell body 3-2; Main epithelium 4 is provided with pallet 5, and pallet 5 upper ends are provided with pressure-regulating device and the built-in valve that diffuses.Be provided with piston drive with the lower end of the pallet 5 vertical screw rods that link to each other 10, be used to regulate the airflow clearance of the valve port a1 of itself and valve body a, with the air pressure of regulation valve body a air outlet 42.The sidewall of upper shell 3-1 is provided with vent 2, is provided with air door 12 on vent 2.Air door 12 is two-way air valve, and when there were draught head in the inner chamber 3-3 between upper shell 3-1 and the main epithelium 4 and outside air, air just flowed into or flows out inner chamber 3-3 from air door 12; The lower end surface of lower shell body 3-2 is provided with PRESSURE PIPE interface 14.
The described built-in valve that diffuses comprises: that is located at pallet 5 upper ends diffuses spring 9, and pass the central opening of described main epithelium 4 and pallet 5 and link to each other with pallet 5 diffuse valve port 7, diffuse and be hermetic seal between valve port 7 and the main epithelium 4; The lower end of described screw rod 10 has the 10-1 of circular cone portion, and the 10-1 of this circular cone portion is provided with seal ring, and described screw rod 10 passes and describedly diffuses valve port 7 and its top links to each other with the top of diffusing spring 9; Under the effect of diffusing spring 9, the 10-1 of circular cone portion of screw rod 10 is sealed and matched with the lower end mouth of diffusing valve port 7.Described screw rod 10 comprises: upper end portion and underpart, described screw rod 10 are that screw-thread fit forms by upper end portion and underpart, install with convenient.
The described valve port 7 that diffuses is inverted T-shape, diffuses and is provided with seal ring between valve port 7 and the main epithelium 4; Fix with pallet 5 by a nut 6 after diffusing the central opening that valve port 7 passes described main epithelium 4 and pallet 5, diffuse hermetic seal between valve port 7 and the main epithelium 4 thereby make, simple in structure, easy for installation.
Described pressure-regulating device comprises: be located at the main pressure regulator spring 8 on the pallet 5, the pressure adjusting nut 11 of being located at main pressure regulator spring 8 upper ends and linking to each other with the top of upper casing 3-1; The internal diameter of main pressure regulator spring 8 is greater than the external diameter that diffuses spring 9, and described screw rod 10 and diffuse spring 9 and be located in the main pressure regulator spring 8.
Described valve body a comprises suction port 41 and the air outlet 42 that communicates through described valve port a1; Be connected with built-in PRESSURE PIPE 43 on the PRESSURE PIPE interface 14 on the described housing 3, the outer wall of described air outlet 42 is provided with PRESSURE PIPE interface 44; Built-in PRESSURE PIPE 43 stretches into valve body a by this PRESSURE PIPE interface 44 and extends to outside the air outlet 42; Be pipe seal between built-in PRESSURE PIPE 43 and the PRESSURE PIPE interface 44.
Described piston drive comprises: lever 13, pass the valve stem passage of main pressure regulator valve b and extend to the valve rod 15 of described valve port a1 front end and be located at the terminal and pressure regulation valve pads 20 relative with described valve port a1 of valve rod 15; The fulcrum of lever 13 is hinged mutually with the inwall bottom of housing 3, and the dynamic action point of lever 13 is hinged mutually with the bottom of described screw rod 10, and the drag effect point of lever 13 is hinged mutually with the front end of described valve rod 15.
The working principle of the gas pressure regulator, governor of present embodiment is as follows:
See Fig. 2, gas enters the inner chamber of valve body a by the suction port 41 of valve body a, 42 flows out to the air outlet behind the valve port a1 that flows through.The air pressure of air outlet 42 is after built-in PRESSURE PIPE 43 and the PRESSURE PIPE interface 44 that passes valve body a bottom are drawn, see Fig. 1, be transmitted to main epithelium 4 belows through PRESSURE PIPE interface 14, the pressure-regulating device of this air pressure and main epithelium 4 tops balances each other, the equilibrium position of pallet 5 is located at the pressure regulation valve pad 20 of valve rod 15 ends and the size of the airflow clearance between the valve port a1 through lever 13 and valve rod 15 transmissions with decision.
Downstream flow increase or the decline of suction port 41 pressure as valve body a, air outlet 42 pressure descend thereupon to some extent, the air pressure of main epithelium 4 belows also descends thereupon, main epithelium 4 and the pallet 5 that links to each other thereof, screw rod 10 also produce under the effect of main pressure regulator spring 8 and move down, lever 13 through linking to each other and valve rod 15 transmissions with screw rod 10 lower ends, airflow clearance between valve pad 20 and the valve port a1 strengthens, and flow increases thereupon, and air outlet 42 pressure rise and recover normal.Otherwise, when the downstream flow of valve body a reduces or suction port 41 pressure when rising, air outlet 42 pressure rise thereupon to some extent, main epithelium 4 below air pressure also rise thereupon, the active force that main epithelium 4, pallet 5 and screw rod 10 overcome main pressure regulator spring 8 with on move, lever 13 through linking to each other with screw rod 10 and valve rod 15 are passed on, the airflow clearance between valve pad 20 and the valve port a1 reduces, flow reduces thereupon, and air outlet 42 pressure descend and recover normal.Reach the size of control gaseous flow thus, the purpose of air outlet 42 pressure of automatic regulating valve body a, thereby the voltage regulation function of realization gas pressure regulator, governor.
See Fig. 1, be provided with the built-in valve that diffuses in the main voltage regulator b of present embodiment.During proper functioning, under the effect of diffusing spring 9, the 10-1 of circular cone portion that diffuses valve port 7 and screw rod 10 lower ends keeps being sealed and matched, if air outlet 42 pressure of valve body a rise and (built-in operating pressure value of diffusing valve is usually less than the operating pressure value of cut-off valve c) when exceeding built-in operating pressure value of diffusing valve, main epithelium 4 and pallet 5 drives and diffuses valve port 7 and move overcoming on the main pressure regulator spring 8, until the valve pad 20 of valve rod 15 ends with valve port a1 closure with described valve body a, this moment screw rod 10 fixed-site, under gas pressure, main epithelium 4 and pallet 5 drives are diffused valve port 7 and are overcome main pressure regulator spring 8 and diffuse the active force of spring 9 along moving on the screw rod 10, make the 10-1 of circular cone portion that diffuses valve port 7 and screw rod 10 lower ends break away from the state that is sealed and matched, the gas of main epithelium 4 belows overflows to go forward side by side from diffuse the airflow clearance between valve port 7 and the screw rod 10 becomes owner of epithelium 4 tops, after emitting, spiracle 12 enters in the air, air outlet 42 pressure of valve body a are descended, play the effect of safe step-down, when dropping to, diffuse when force value is set air outlet 42 pressure, diffusing valve port 7 closes, be that the described 10-1 of circular cone portion that diffuses valve port 7 and screw rod 10 lower ends returns to the state of being sealed and matched, gas pressure regulator, governor recovers proper functioning.
See Fig. 1,42 pressure change when the air outlet of valve body a, and when rising reached the operating pressure value of safety cut-off valve c as air outlet 42 pressure, safety cut-off valve c sealing valve port a1 cut off air-flow, reaches the purpose of safety cut-off.Equally, when decline reached the operating pressure value of safety cut-off valve c as air outlet 42 pressure, safety cut-off valve c sealing valve port a1 cut off air-flow, reaches the purpose of safety cut-off.
After fault is got rid of, can be with the manual manual reset of safety cut-off valve c, gas pressure regulator, governor recovers ventilation.
In other embodiments, see Fig. 3, between the inner chamber 3-3 of vent 2 and upper shell 3-1, be provided with unidirectional spring sheet 1, when not hindering ventilation, can prevent that foreign matter from entering in the main pressure regulator valve housing.
Obviously, the foregoing description of the present utility model only is for the utility model example clearly is described, and is not to be qualification to mode of execution of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all mode of executions.And these belong to conspicuous variation or the change that spirit of the present utility model extended out and still are among the protection domain of the present utility model.
Claims (8)
1. gas pressure regulator, governor comprises: valve body (a), be located at the main pressure regulator valve (b) and the safety cut-off valve (c) of valve port (a1) both sides of valve body (a); Described main pressure regulator valve (b) comprising: housing (3), be located at main epithelium (4) in the housing (3), be located at pallet (5) on the main epithelium (4), be located at pallet (5) upper end pressure-regulating device, with vertical screw rod that links to each other of pallet (5) (10) and the piston drive that links to each other with the lower end of screw rod (10); It is characterized in that: described main pressure regulator valve (b) also comprises: the built-in valve that diffuses; This built-in valve that diffuses comprises: that is located at pallet (5) upper end diffuses spring (9), and pass the central opening of described main epithelium (4) and pallet (5) and link to each other with pallet (5) diffuse valve port (7); Diffuse and be hermetic seal between valve port (7) and the main epithelium (4); Described screw rod (10) passes and describedly diffuses valve port (7) and its top links to each other with the top of diffusing spring (9); Under the effect of diffusing spring (9), the lower end of diffusing valve port (7) and screw rod (10) is sealed and matched.
2. a kind of gas pressure regulator, governor according to claim 1 is characterized in that: described screw rod (10) be circular cone portion (10-1) with the described portion of matching of diffusing valve port (7), this circular cone portion (10-1) is provided with seal ring; The lower end mouth of diffusing valve port (7) is horn-like opening, and under the effect of diffusing spring (9), this circular cone portion (10-1) is sealed and matched with the lower end mouth of diffusing valve port (7).
3. a kind of gas pressure regulator, governor according to claim 1 and 2 is characterized in that: described pressure-regulating device comprises: be located at the main pressure regulator spring (8) on the pallet (5), the pressure adjusting nut (11) of being located at main pressure regulator spring (8) upper end and linking to each other with housing (3) top; The internal diameter of main pressure regulator spring (8) is greater than the external diameter that diffuses spring (9), and described screw rod (10) and diffuse spring (9) and be located in the main pressure regulator spring (8).
4. a kind of gas pressure regulator, governor according to claim 3 is characterized in that: described housing (3) comprises upper shell (3-1) and lower shell body (3-2), and the edge of described main epithelium (4) is located between upper shell (3-1) and the lower shell body (3-2); On upper shell (3-1), be provided with vent (2); Between the inner chamber (3-3) of vent (2) and upper shell (3-1), be provided with unidirectional spring sheet (1).
5. a kind of gas pressure regulator, governor according to claim 3 is characterized in that: described housing (3) comprises upper shell (3-1) and lower shell body (3-2), and the edge of described main epithelium (4) is located between upper shell (3-1) and the lower shell body (3-2); On upper shell (3-1), be provided with vent (2); On vent (2), be provided with air door (12).
6. a kind of gas pressure regulator, governor according to claim 3 is characterized in that: the described valve port (7) that diffuses is an inverted T-shape, diffuses and is provided with seal ring between valve port (7) and the main epithelium (4); Fix by a nut (6) and pallet (5) after diffusing the central opening that valve port (7) passes described main epithelium (4) and pallet (5).
7. a kind of gas pressure regulator, governor according to claim 1 and 2 is characterized in that: also comprise the valve body (a) that links to each other with described main pressure regulator valve (b); Valve body (a) comprising: suction port (41), air outlet (42) and valve port (a1); Described suction port (41) and air outlet (42) communicate through described valve port (a1); Be provided with PRESSURE PIPE interface (14) on lower shell body (3-2), be connected with built-in PRESSURE PIPE (43) on PRESSURE PIPE interface (14), the outer wall of the air outlet (42) of described valve body (a) is provided with PRESSURE PIPE interface (44); Built-in PRESSURE PIPE (43) stretches into valve body (a) by this PRESSURE PIPE interface (44) and extends to outside the air outlet (42); Be pipe seal between built-in PRESSURE PIPE (43) and the PRESSURE PIPE interface (44).
8. a kind of gas pressure regulator, governor according to claim 7 is characterized in that: described piston drive comprises: lever (13), pass the valve stem passage of main pressure regulator valve (b) and extend to the valve rod (15) of described valve port (a1) front end and be located at the terminal and pressure regulation valve pad (20) relative with described valve port (a1) of valve rod (15); The fulcrum of lever (13) is hinged mutually with the inwall bottom of housing (3), and the dynamic action point of lever (13) is hinged mutually with the bottom of described screw rod (10), and the drag effect point of lever (13) is hinged mutually with the front end of described valve rod (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200355314U CN201196340Y (en) | 2008-05-07 | 2008-05-07 | Gas pressure regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200355314U CN201196340Y (en) | 2008-05-07 | 2008-05-07 | Gas pressure regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201196340Y true CN201196340Y (en) | 2009-02-18 |
Family
ID=40415977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200355314U Expired - Fee Related CN201196340Y (en) | 2008-05-07 | 2008-05-07 | Gas pressure regulator |
Country Status (1)
| Country | Link |
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| CN (1) | CN201196340Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537665A (en) * | 2011-12-23 | 2012-07-04 | 上海飞奥燃气设备有限公司 | Device and method for regulating outlet pressure of indirect effect type gas pressure regulator along with clock |
| CN101266023B (en) * | 2008-05-07 | 2012-07-18 | 常州市科信燃气设备有限公司 | Gas pressure regulator |
| CN102691800A (en) * | 2011-03-24 | 2012-09-26 | 费希尔调压器(上海)有限公司 | Fluid adjustment device with offset control element |
| CN103644341A (en) * | 2013-12-26 | 2014-03-19 | 谷红军 | Cutting off type indoor pressure regulator |
| CN106402445A (en) * | 2016-11-18 | 2017-02-15 | 乐山倍创机械制造有限公司 | Main pressure adjusting device applied to fuel gas pressure adjusting mechanism |
-
2008
- 2008-05-07 CN CNU2008200355314U patent/CN201196340Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101266023B (en) * | 2008-05-07 | 2012-07-18 | 常州市科信燃气设备有限公司 | Gas pressure regulator |
| CN102691800A (en) * | 2011-03-24 | 2012-09-26 | 费希尔调压器(上海)有限公司 | Fluid adjustment device with offset control element |
| CN102537665A (en) * | 2011-12-23 | 2012-07-04 | 上海飞奥燃气设备有限公司 | Device and method for regulating outlet pressure of indirect effect type gas pressure regulator along with clock |
| CN102537665B (en) * | 2011-12-23 | 2014-08-13 | 上海飞奥燃气设备有限公司 | Device and method for regulating outlet pressure of indirect effect type gas pressure regulator along with clock |
| CN103644341A (en) * | 2013-12-26 | 2014-03-19 | 谷红军 | Cutting off type indoor pressure regulator |
| CN106402445A (en) * | 2016-11-18 | 2017-02-15 | 乐山倍创机械制造有限公司 | Main pressure adjusting device applied to fuel gas pressure adjusting mechanism |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090218 Termination date: 20130507 |