CN202397937U - Gas control valve - Google Patents
Gas control valve Download PDFInfo
- Publication number
- CN202397937U CN202397937U CN 201120571215 CN201120571215U CN202397937U CN 202397937 U CN202397937 U CN 202397937U CN 201120571215 CN201120571215 CN 201120571215 CN 201120571215 U CN201120571215 U CN 201120571215U CN 202397937 U CN202397937 U CN 202397937U
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- gas passage
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Abstract
The utility model discloses a gas control valve, which comprises a valve body and a valve cover connected with the valve body and further comprises a safety valve positioned on the valve body. The safety valve comprises a safety valve body and a safety valve core assembly. When pressure in the valve body is higher than a preset value, pressure is reduced through a gap between the safety valve body and the safety valve core assembly. The valve body comprises a first gas channel and a second gas channel. The valve cover comprises a third gas channel. Sealing pads are positioned at the junctions between the first gas channel and the second gas channel and between the first gas channel and the third gas channel. The first gas channel can be selectively communicated with the second gas channel and the third gas channel through matching of the sealing pads, the valve body and the valve cover. Due to the safety valve arranged on the gas control valve, when inside pressure is overhigh, gas can be exhausted effectively. The gas control valve has the advantages of being simple in structure, convenient to assemble and disassemble, good in sealing performance, low in cost and safe to use.
Description
Technical field
This utility model relates to medical instruments field, relates in particular to a kind of gas control valve.
Background technology
Anesthesia respirator is a hospital when undergoing surgery, and to the important medical apparatus and instruments that patient anaesthetizes sb. generally, its major function is to suck anesthetis, oxygen supply and auxiliary or control breathing are provided for patient.
Anesthesia evaporator is the important composition parts on the anesthetic machine, and it provides stable, concentration to anaesthetize mist accurately through anesthetic machine to patient.
Anesthesia respirator links to each other through gas control valve with anesthesia evaporator.When the access failure anesthesia evaporator, anesthesia respirator is carried gas through gas control valve to patient, and this moment, gas control valve should guarantee outwards leakage of gas, and the gas of gas coming through control valve does not have vapour lock or vapour lock is very little; After connecting anesthesia evaporator, self closes gas control valve, all gas anesthesia evaporator of flowing through, and this moment, gas control valve should guarantee that anesthetis do not reveal.
The purposes of gas control valve requires it to have higher safe application performance; But there is the defective that gas can't effectively be discharged when its internal pressure is too high in traditional gas control valve; Bring potential safety hazard to use, defectives such as also there is complex structure in traditional gas control valve, sealing is poor, vapour lock is big, gland stroke weak point.
The utility model content
The purpose of this utility model is to solve traditional gas control valve and has the problem that gas can't be discharged after the port of export stops up; A kind of gas control valve is provided; It is through being provided with relief valve on gas control valve; Gas is effectively discharged during portion's hypertonia within it, and have simple in structure, easy accessibility, good airproof performance, cost lower, use safer advantage.
The purpose of this utility model is to realize through following technical scheme:
A kind of gas control valve; Comprise valve body and the valve gap that joins with it, also comprise the relief valve that is arranged on the valve body, said relief valve comprises relief valve valve body and relief valve core assembly; When valve inner pressure is higher than setting value; Release is carried out in gap through between relief valve valve body and the relief valve core assembly, and said valve body has first gas passage and second gas passage, and said valve gap has the 3rd gas passage; Intersection at first gas passage and second gas passage and the 3rd gas passage is provided with sealing gasket, realizes that through the sealing gasket and the cooperation of valve body, valve gap first gas passage is communicated with second gas passage, the 3rd gas passage selectivity.
Preferably, said relief valve valve body adopts hollow structure, so that its inside has the 4th gas passage; Said the 4th gas passage communicates with first gas passage; Said relief valve core assembly is installed in said relief valve valve inner, and said relief valve valve body one end is provided with external screw thread, at said externally threaded root ring cutting first groove is arranged; Its other end set inside has the first step face; Outer end at said first step face is provided with the conical surface, and said valve body one side coupling external screw thread is provided with female thread, so that said relief valve valve body is through being threaded in said valve body one side; And in first groove, be provided with sealing ring, be positioned at the homonymy of said relief valve valve body and use pipe joint through the air inlet that has been threaded at the end of said first gas passage.
Preferably; Have second groove on the said valve body; Said first gas passage is communicated with through second groove with second gas passage, and the top of said second groove is provided with female thread, and said valve gap coupling female thread is provided with external screw thread; So that valve body is threaded with valve gap, and apply fluid sealant in the junction.
Preferably, said relief valve core assembly comprises relief valve valve rod, block, adjusting nut and spring, and said relief valve valve rod comprises rod member part and stem head part; Said rod member partly is provided with external screw thread, and said stem head partly has groove, and said spring, block are set in the periphery of rod member part successively; And it is spacing through the adjusting nut that is screwed on the rod member part; Said relief valve core assembly is installed in said relief valve valve inner, so that spring one end contacts with block, the other end contacts with the first step face; Said stem head partly contacts the conical surface, and sealing ring is set in groove.
Preferably; In the space of forming by said second gas passage, second groove, the 3rd gas passage, core assembly is installed; Said core assembly comprises gland, upper spring, valve rod, lower spring, and from top to bottom is installed in the space of being made up of said second gas passage, second groove, the 3rd gas passage.
Preferably, said valve gap adopts hollow structure, makes its inside have the 3rd gas passage; Inwardly there is second boss said valve gap upper end; Corresponding second boss is provided with the 3rd boss in the upper end of said gland, and the bottom of said gland has groove, and upper spring is installed in groove; Said gland is installed in the said valve gap through the compression upper spring, so that the 3rd boss holds out against on second boss.
Preferably, said gland integral body is cylindrical, at its peripheral evenly rip cutting four straight flanges, and leaves the circular arc guide part in the center of straight flange.
Preferably; Said valve rod top has the groove that is used to install spring, and said groove oral area falls filleted corner, and said valve rod middle part is provided with annular protrusion; Below said annular protrusion, have annular groove; Sealing gasket is installed in the said annular groove, and said stem lower portion is arranged with lower spring, and said valve rod is installed in the space of being made up of said second gas passage, second groove, the 3rd gas passage through the compression lower spring; So that lower spring one end in contact valve body, other end contact seal pad lower surface.
Preferably; The bottom of said second groove is provided with first boss; Said valve gap bottom is provided with the 4th boss; Said core assembly is installed in the space of being made up of said second gas passage, second groove, the 3rd gas passage, so that said sealing gasket upper surface contacts the 4th boss under the normality, said first gas passage is communicated with second gas passage.
Preferably, said valve gap and said valve body joint also are provided with the O RunddichtringO.
The beneficial effect of this utility model is: through relief valve is set on valve body, when the too high or gas control valve port of export stops up when admission pressure, can carry out blood pressure lowering through the gap between relief valve valve body and the relief valve core assembly; Specifically; When the 4th inner gas passage internal pressure of relief valve is excessive, under the effect of gas pressure, promote the relief valve valve rod; Make between itself and the relief valve valve body and the gap occurs; Gas is discharged from this gap, realizes that the pressure of valve inner reduces, and makes that the safety of this gas control valve is higher; Realize that through the sealing gasket and the cooperation of valve body, valve gap first gas passage is communicated with second gas passage, the 3rd gas passage selectivity; Specifically; Under normal conditions; Sealing gasket makes sealing gasket contact with the 4th boss of valve gap bottom under the elastic force effect of lower spring, and the gas passage of winning is communicated with second gas passage; When gland is stressed when pressing down, under the elastic force effect of upper spring, promote valve rod downwards, make sealing gasket contact with first boss, the gas passage of winning is communicated with the 3rd gas passage; Through junction the O RunddichtringO is set, and applies fluid sealant, make that the air-tightness of this gas control valve is good in the threaded connection place at valve gap and valve body; And all adopt the thread connecting mode be easy to assemble between each parts, make this gas control valve easy accessibility.The contrast prior art, the described gas control valve of this utility model is provided with relief valve, gas is effectively discharged during portion's hypertonia within it, and have simple in structure, easy accessibility, good airproof performance, cost lower, use safer advantage.
Description of drawings
According to accompanying drawing and embodiment this utility model is done further explain below.
Fig. 1 is the partial schematic sectional view of the described gas control valve of this utility model;
Fig. 2 is the cross-sectional schematic of the valve body shown in Fig. 1;
Fig. 3 is the cross-sectional schematic of the valve gap shown in Fig. 1;
Fig. 4 is the schematic perspective view of the gland shown in Fig. 1;
Fig. 5 is the cross-sectional schematic of the gland shown in Fig. 1;
Fig. 6 is the schematic perspective view of the valve rod shown in Fig. 1;
Fig. 7 is the cross-sectional schematic of the valve rod shown in Fig. 1;
Fig. 8 is the cross-sectional schematic of the relief valve valve body shown in Fig. 1;
Fig. 9 is the cross-sectional schematic of the relief valve valve rod shown in Fig. 1.
Among the figure:
1, valve body; 101, first gas passage; 102, second gas passage; 103, intermediate gas passage; 104, second groove; 105, first boss; 106, first cannelure; 107, second cannelure;
2, valve gap; 201, the 3rd gas passage; 202, second boss; 203, the 4th boss; 204, the 3rd cannelure; 205, the 4th cannelure;
3, relief valve;
4, relief valve valve body; 401, the 4th gas passage; 402, first groove; 403, first step face; 404, the conical surface;
5, relief valve core assembly; 501, relief valve valve rod; 502, block; 503, adjusting nut; 504, spring; 505, rod member part; 506, stem head part; 507, the 3rd groove
6, sealing gasket;
7, pipe joint;
8, core assembly; 801, gland; 802, upper spring; 803, valve rod; 804, lower spring; 805, the 3rd boss; 806, annular protrusion; 807, guide part;
9, O RunddichtringO.
The specific embodiment
As shown in Figure 1; In present embodiment, the described gas control valve of this utility model, the valve gap 2 that comprises valve body 1 and join with it; Also comprise the relief valve 3 that is arranged on the valve body 1; Relief valve 3 comprises relief valve valve body 4 and relief valve core assembly 5, when valve inner pressure is higher than setting value, carries out blood pressure lowering through the gap between relief valve valve body 4 and the relief valve core assembly 5; Valve body 1 has first gas passage 101 and second gas passage 102; Valve gap 2 has the 3rd gas passage 201, in the intersection of first gas passage 101 and second gas passage 102 and the 3rd gas passage 201 sealing gasket 6 is set, and realizes that through the sealing gasket 6 and the cooperation of valve body 1, valve gap 2 first gas passage 101 is communicated with second gas passage 102, the 3rd gas passage 201 selectivitys.
As shown in Figure 1, only show the partial structurtes of this gas control valve among the figure, the real gas control valve has two identical valve gaps; When gas control valve is connected vaporizer; Two valve gaps all articulate vaporizer, (promptly vaporizer needs cooperate with two valve gaps simultaneously, could realize and being connected of gas control valve); Gas gets into valve body 1 inside from pipe joint 7; Get into vaporizer from first valve gap 2 again, get into valve body from vaporizer once more through second valve gap 2 then, export from escape pipe joint (not shown) at last.Wherein valve gap top periphery design becomes hexagonal structure, and it mainly acts on is the assembling that makes things convenient between itself and the valve body, and (be valve gap peripheral structure be mainly used in match) with assembly tool, each gas control valve can articulate one or more vaporizers simultaneously.
Referring to shown in Figure 2, show a kind of concrete valve body structure, valve body 1 inside has first gas passage 101; Its outer end has first cannelure 106; First cannelure 106 has female thread, and the air inlet that is used to be threaded is with pipe joint 7, and gas gets into valve body 1 inside from first gas passage 101; Valve body 1 inside also has second gas passage 102 and intermediate gas path 10 3; Second gas passage 102 is communicated with through second groove 104 with first gas passage 101; Top at second groove 104 has female thread; The valve gap 2 that is used to be threaded has first boss, 105, the first boss 105 and is used for first gas passage 101 is selected to be communicated with second gas passage 102 in the bottom of second groove 104; Intermediate gas path 10 3 is connected with first gas passage 101, and has second cannelure 107 in intermediate gas path 10 3 ends, and it has female thread, and relief valve 3 is used to be threaded.This valve body simple in structure, easily manufactured, but the structure of valve body and be not limited to the structure shown in the figure can also have other forms, and Fig. 2 has just provided a kind of preferred valve body.
Referring to shown in Figure 3; Show a kind of concrete valve cover structure; Valve gap 2 adopts hollow structure, the peripheral hexagonal structure that adopts in valve gap 2 tops, and its inside has the 3rd gas passage 201; The glands 801 that the upper end inwardly has 202 pairs of second boss, 202, the second boss to be installed in valve gap 2 inside play position-limiting action; The bottom has the 4th boss 203, the four boss 203 and is used for first gas passage 101 is selected to be communicated with the 3rd gas passage 201; Also be provided with the 3rd cannelure 204 and the 4th cannelure 205 on the valve gap 2; Be used to install O RunddichtringO 9; Between the 3rd cannelure 204 and the 4th cannelure 205, also be provided with external screw thread; The valve body 1 that is used to be threaded, the sealing ring 9 in the 3rd cannelure 204 has guaranteed air-tightness between valve gap and the vaporizer; Sealing ring 9 in the 4th cannelure 205 has guaranteed the air-tightness between valve gap and the gland, adopts thread connecting mode simultaneously, is convenient to dismounting, brings convenience to use.
Referring to Fig. 1, shown in 4～7; Show a kind of structure of concrete core assembly; Core assembly 8 comprises gland 801, upper spring 802, valve rod 803, lower spring 804, and core assembly 8 is installed in the space of being made up of the 3rd gas passage 201, second groove 104, second gas passage 102.
Like Fig. 5, shown in 6, gland 801 is whole cylindrical, at its peripheral evenly rip cutting four straight flanges, and leaves circular arc guide part 807 in the center of straight flange, and gland 801 upper ends are provided with the 3rd boss 805, and the lower end has groove, and the oral area of groove falls filleted corner; Guide part 807 can make that gland 801 motion in its pressure journey is stable more, reliable; The 3rd boss 805 matches with the second inboard boss 202 of valve gap, has formed the position-limit mechanism of gland, guarantees that gland 801 does not break away from valve gap 2 in its stroke; Groove is used to install spring 802, and the oral area of groove falls the filleted corner assembling with upper spring of being more convenient for.
Like Fig. 6, shown in 7, valve rod 803 tops have groove, are used to install spring 802; Valve rod 803 upper ends are square, also can be processed into other shapes, and positioning action mainly can be played in square four limits; The middle part has annular protrusion 806; Below annular protrusion 806, be provided with groove, be used to install sealing gasket 6, the bottom outer race is set spring 804.At first carry out the prepackage of core assembly and sealing gasket; Sealing gasket 6 is installed in the groove on valve rod 803, is put lower spring 804 in valve rod 803 bottoms then, make lower spring 804 be against the lower surface of sealing gasket 6; Upper spring 802 is set in the groove at valve rod 803 tops then; Upper spring 802 other ends are installed in the gland 801 top annular grooves, and the core assembly that prepackage is good is installed in the valve gap, and integral body is screwed on the valve body then; Make lower spring 804 lower ends withstand on second gas passage bottom; The 3rd boss 805 of gland is against on second boss 202 of valve gap, and the external diameter of gland can be exported from the slit between gland and the valve gap so that get into the gas of the 3rd gas passage less than the internal diameter of valve gap.
Referring to Fig. 1, shown in 8～9; Show a kind of concrete structure of relief valve, relief valve 3 is threaded in a side of valve body 1, and it comprises relief valve valve body 4 and relief valve core assembly 5; And relief valve core assembly 5 is installed in relief valve valve body 4 inside; As shown in Figure 8, relief valve valve body 4 adopts hollow structure, makes its inside have the 4th gas passage 401; And the 4th gas passage 401 is communicated with first gas passage 101 through intermediate gas path 10 3, makes valve body 1 pressure inside consistent with relief valve 3 internal pressures; Relief valve valve body 4 one ends have external screw thread, and the valve body 1 that is used to be threaded has first groove 402 at externally threaded root, is used to install sealing ring, guarantee the air-tightness of relief valve 3; Relief valve valve body 4 other end inside have first step face 403, have the conical surface 404 in first step face 403 outer ends; Relief valve core assembly 5 comprises relief valve valve rod 501, block 502, adjusting nut 503 and spring 504; Shown in figure 10, relief valve valve rod 501 comprises rod member part 505 and stem head part 506, and rod member part 505 front ends have external screw thread; Be used to connect adjusting nut 503; Stem head part 506 has the 3rd groove 507, is used to install sealing member, guarantees the air-tightness that relief valve is inner.
During installation; 1) at first pre-installs relief valve core assembly 5; Spring 504, block 502 are set in rod member part 505 successively, and rod member part 505 screw on adjusting nut 503 carry out spacing, the sealing member of in the 3rd groove 507, packing into; 2) sealing ring of in first groove 402, packing into, sealing ring is used for composition surface between sealed relief valve and the valve body; 3) then with relief valve core assembly 5 relief valve valve body 4 inside of packing into, make stem head part 506 contact with the conical surface 404, spring 504 1 end in contact first step faces 403, other end contact blocks 502, adjusting nut 503 is used for the decrement of regulating spring 504.
When the access failure vaporizer, the actual effect of playing a gas passage of gas control valve of this moment, intermediate gas path 10 3 is the outlet side part of this gas passage; When gland 801 is not depressed; Gas gets into from pipe joint 7, directly gets into intermediate gas path 10 3 through first gas passage, 101 parts, and gets into relief valve 3 inside; Another part gets into second gas passage 102 by second groove 104; Be back to intermediate gas path 10 3 again, mix with the gas of a preceding part then, get into the anesthetic machine downstream through gas control valve pipeline and joint (not shown); Because gland 801 is not depressed, under the elastic force effect of lower spring 804, sealing gasket 6 upwards contacts the 4th boss 203, makes gas can't get into the 3rd gas passage 201, can only get into second gas passage 102.When admission pressure is excessive; Promptly the gas pressure in the 4th gas passage 401 is excessive, under the ordering about of gas pressure, promotes relief valve valve rod 501; So that the gap occurs between the stem head part 506 and the conical surface 404; Gas discharges from this gap, to realize the reduction of gas control valve pressure, has guaranteed the safety that gas control valve uses.
When connecting vaporizer, in the outlet of intermediate gas path 10 3 plug is set, the gas passage that makes gas control valve originally self have is closed; During gland 801 stressed pressing down; Gas gets into from pipe joint 7, gets into intermediate gas path 10 3 through first gas passage, 101 parts, and gets into relief valve 3 inside; Another part gets into the 3rd gas passage 201 by second groove 104, and exports vaporizer to through the gap between valve gap 2 and the gland 801; Because gland 801 stressed pressing down; Gland 801 compression upper springs 802 under the effect of upper spring 802 elastic force, press down valve rod 803; The elastic force that valve rod 803 overcomes lower spring 804 moves downward; Make to make gas can't get into second gas passage 102 by sealing gasket 6 contact first boss 105 downwards, can only get into the 3rd gas passage 201.When admission pressure is excessive; Promptly the gas pressure in the 4th gas passage 401 is excessive, under the ordering about of gas pressure, promotes relief valve valve rod 501; So that the gap occurs between the stem head part 506 and the conical surface 404; Gas discharges from this gap, to realize the reduction of gas control valve pressure, has guaranteed the safety that gas control valve uses.
Claims (10)
1. gas control valve; The valve gap (2) that comprises valve body (1) and join with it; It is characterized in that: also comprise the relief valve (3) that is arranged on the valve body (1); Said relief valve (3) comprises relief valve valve body (4) and relief valve core assembly (5); When valve body (1) when internal pressure is higher than setting value; Blood pressure lowering is carried out in gap through between relief valve valve body (4) and the relief valve core assembly (5), and said valve body (1) has first gas passage (101) and second gas passage (102), and said valve gap (2) has the 3rd gas passage (201); Intersection at first gas passage (101) and second gas passage (102) and the 3rd gas passage (201) is provided with sealing gasket (6), realizes that through the sealing gasket (6) and the cooperation of valve body (1), valve gap (2) first gas passage (101) is communicated with second gas passage (102), the 3rd gas passage (201) selectivity.
2. gas control valve according to claim 1; It is characterized in that: said relief valve valve body (4) adopts hollow structure; So that its inside has the 4th gas passage (401), said the 4th gas passage (401) communicates with first gas passage (101), and said relief valve core assembly (5) is installed in said relief valve valve body (4) inside; Said relief valve valve body (4) one ends are provided with external screw thread; At said externally threaded root ring cutting first groove (402) is arranged, its other end set inside has first step face (403), is provided with the conical surface (404) in the outer end of said first step face (403); Said valve body (1) one side coupling external screw thread is provided with female thread; So that said relief valve valve body (4) is through being threaded in said valve body (1) one side, and is provided with sealing ring in first groove (402), be positioned at the homonymy of said relief valve valve body (4) and at the end of said first gas passage (101) through the air inlet that has been threaded with pipe joint (7).
3. gas control valve according to claim 1; It is characterized in that: have second groove (104) on the said valve body (1); Said first gas passage (101) is communicated with through second groove (104) with second gas passage (102), and the top of said second groove (104) is provided with female thread, and said valve gap (2) coupling female thread is provided with external screw thread; So that valve body (1) is threaded with valve gap (2), and apply fluid sealant in the junction.
4. gas control valve according to claim 2; It is characterized in that: said relief valve core assembly (5) comprises relief valve valve rod (501), block (502), adjusting nut (503) and spring (504), and said relief valve valve rod (501) comprises rod member part (505) and stem head part (506), and said rod member part (505) is provided with external screw thread; Said stem head part (506) has groove; And sealing ring is set in groove, said spring (504), block (502) are set in the periphery of rod member part (505) successively, and spacing through the adjusting nut (503) that is screwed on the rod member part (505); Said relief valve core assembly (5) is installed in said relief valve valve body (4) inside; So that spring (504) one ends contact with block (502), the other end contacts with first step face (403), said stem head part (506) the contact conical surface (404).
5. gas control valve according to claim 3; It is characterized in that: in the space of forming by said second gas passage (102), second groove (104), the 3rd gas passage (201), core assembly (8) is installed; Said core assembly (8) comprises gland (801), upper spring (802), valve rod (803), lower spring (804), and from top to bottom is installed in the space of being made up of said second gas passage (102), second groove (104), the 3rd gas passage (201).
6. gas control valve according to claim 3; It is characterized in that: said valve gap (2) adopts hollow structure; Make its inside have the 3rd gas passage (201), inwardly there is second boss (202) said valve gap (2) upper end, and corresponding second boss (202) is provided with the 3rd boss (805) in the upper end of said gland (801); The bottom of said gland (801) has groove; Upper spring (802) is installed in groove, and said gland (801) is installed in the said valve gap (2) through compression upper spring (802), so that the 3rd boss (805) holds out against on second boss (202).
7. according to claim 5 or 6 arbitrary described gas control valves, it is characterized in that: said gland (801) is whole cylindrical, at its peripheral evenly rip cutting four straight flanges, and leaves circular arc guide part (807) in the center of straight flange.
8. gas control valve according to claim 5; It is characterized in that: said valve rod (803) top has the groove that is used to install spring (802); Said groove oral area falls filleted corner; Said valve rod (803) middle part is provided with annular protrusion (806), has annular groove in said annular protrusion (806) below, and sealing gasket (6) is installed in the said annular groove; Said valve rod (803) bottom is arranged with lower spring (804); Said valve rod (803) is installed in the space of being made up of said second gas passage (102), second groove (104), the 3rd gas passage (201) through compression lower spring (804), so that lower spring (804) one end in contact valve bodies (1), other end contact seal pad (6) lower surface.
9. gas control valve according to claim 8; It is characterized in that: the bottom of said second groove (104) is provided with first boss (105); Said valve gap (2) bottom is provided with the 4th boss (203); Said core assembly (8) is installed in the space of being made up of said second gas passage (102), second groove (104), the 3rd gas passage (201); So that said sealing gasket (6) upper surface contacts the 4th boss (203) under the normality, said first gas passage (101) is communicated with second gas passage (102).
10. gas control valve according to claim 9 is characterized in that: said valve gap (2) also is provided with O RunddichtringO (9) with said valve body (1) joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120571215 CN202397937U (en) | 2011-12-30 | 2011-12-30 | Gas control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120571215 CN202397937U (en) | 2011-12-30 | 2011-12-30 | Gas control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202397937U true CN202397937U (en) | 2012-08-29 |
Family
ID=46695618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120571215 Withdrawn - After Issue CN202397937U (en) | 2011-12-30 | 2011-12-30 | Gas control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202397937U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103182137A (en) * | 2011-12-30 | 2013-07-03 | 北京谊安医疗系统股份有限公司 | Gas control valve |
-
2011
- 2011-12-30 CN CN 201120571215 patent/CN202397937U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103182137A (en) * | 2011-12-30 | 2013-07-03 | 北京谊安医疗系统股份有限公司 | Gas control valve |
| CN103182137B (en) * | 2011-12-30 | 2016-03-02 | 北京谊安医疗系统股份有限公司 | Gas control valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120829 Effective date of abandoning: 20160302 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |