CN201672087U - Combustion gas plug valve - Google Patents
Combustion gas plug valve Download PDFInfo
- Publication number
- CN201672087U CN201672087U CN2010201815628U CN201020181562U CN201672087U CN 201672087 U CN201672087 U CN 201672087U CN 2010201815628 U CN2010201815628 U CN 2010201815628U CN 201020181562 U CN201020181562 U CN 201020181562U CN 201672087 U CN201672087 U CN 201672087U
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- China
- Prior art keywords
- rotary knob
- knob rod
- valve gap
- valve
- positioning wheel
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Abstract
The utility model relates to a combustion gas plug valve, comprising a valve body (1), a valve core (2), a valve cover (3), a knob rod (4), a positioning wheel synchronously rotating together with the knob rod (4) and a positioning ring slice (6), wherein the valve core (2) comprises a center hole (21) and a large fire hole (22) and a small fire hole (23) are arranged on the circle surface; the knob rod (4) vertically limitedly moves relative to the valve cover (3) and a first retaining wall (34) and a second retaining wall (35) are arranged in the inner cavity of the valve cover (3). Compared with the prior technology, in the combustion gas plug valve, when the knob rod turns to the large fire position from the small fire position, namely the valve core turns to the communication state of the large fire hole and the gas inlet channel of the valve body from the communication state of the small fire hole and the gas inlet channel of the valve body and the position of the valve core is accurately positioned and the large fire hole on the valve core is completely communicated with the gas inlet channel of the valve body and the knob body is conveniently turned to the large fire and the operation is simple and sensitive.
Description
Technical field
The utility model relates to a kind of fuel gas plug valve, can accurately locate the fuel gas plug valve of big fire hole when relating in particular to a kind of the revolution.
Background technique
Fuel gas plug valve in the various combustion gas tools is the manual operating valve of control source of the gas supply.Common fuel gas plug valve generally comprises a spool and a rotary knob rod that has big fire hole and small fire hole in the valve body that has gas-entered passageway and outlet passageway, the valve body.During use, the outlet passageway end of stopcock valve body is connected use with nozzle, the user can be by being arranged on knob on the operation panel and rotary knob rod under the operation knob, generally push knob earlier and rotate counterclockwise, can drive spool and rotate counterclockwise, the gas-entered passageway in big fire hole and the valve body on the spool is connected, at this moment, source of the gas can pass through gas-entered passageway, outlet passageway and from the nozzle ejection, use for the combustion gas tool.When turning the intensity of a fire down, the user continues to rotate counterclockwise knob, and the gas-entered passageway in small fire hole and the valve body on the spool is connected, and reduces the circulation passage of source of the gas and reaches the purpose that reduces the intensity of a fire.
If the user wants the little intensity of a fire to remap to the maximum intensity of a fire, also be, want rotary valve key, spool is communicated with gas-entered passageway in the valve body from its small fire hole to be converted into its big fire hole and to communicate with gas-entered passageway in the valve body, under existing fuel gas plug valve condition, clockwise rotate rotary knob rod and make spool when revolution, the position that communicates of the gas-entered passageway in the big fire hole of misalignment spool and the valve body often, the user is more to be to judge according to the actual intensity of a fire of combustion gas, vernier knob, and the position of the big relative valve body of fire hole is often not accurate enough, thereby can't guarantee that the intensity of a fire can pull back to maximum, and the pivotal position is clear and definite inadequately, brings many inconvenience also for actual the use.Thereby existing fuel gas plug valve needs further improvement.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of fuel gas plug valve at the present situation of prior art, its at spool when the small fire hole and the gas-entered passageway communicating state of valve body return back to its big fire hole and communicate with the gas-entered passageway of valve body, can accurately locate the position of big fire hole, guarantee that big fire hole communicates fully with the gas-entered passageway of valve body, makes things convenient for stopcock to pull back to the big intensity of a fire.
The utility model solves the problems of the technologies described above the technological scheme that is adopted: this fuel gas plug valve comprises the valve body that has gas-entered passageway and outlet passageway, is arranged in the valve body spool, the valve gap that is fixed on valve end and a rotary knob rod that can rotate relative to valve body; Wherein, described spool has center hole, and circumferential surface is provided with big fire hole, the small fire hole that communicates with center hole; The afterbody of described rotary knob rod passes the center through hole at valve gap top and is inserted in the inner chamber of valve gap, and this rotary knob rod can move and can drive spool and rotate synchronously relative to the displacement of valve gap upper and lower; It is characterized in that:
The afterbody of described rotary knob rod is outside equipped with a positioning wheel that rotates synchronously with rotary knob rod, the upper surface of this positioning wheel is near the internal surface at described valve gap top, and, the periphery wall of this positioning wheel stretches out and is useful on first extension part of the big fire hole in location, the upper surface of this positioning wheel is provided with first projection along circumference, the moving distance of the upper and lower displacement of the height of first projection and rotary knob rod adapts, and is under the lower limit state at rotary knob rod, and the top of first projection is positioned under the internal surface at valve gap top;
The inside top of described valve gap has first block that protrude, that can stop first projection to central authorities, and, have first retaining wall, second retaining wall in the inner chamber of valve gap;
In addition, also include a fixed aunular sheet that rotates synchronously with rotary knob rod, the periphery of this fixed aunular sheet is outward extended with a jut that is used to locate small fire hole;
The position of the jut on first block on first projection on the described positioning wheel, first extension part, the valve gap, first retaining wall, second retaining wall and the fixed aunular sheet is subjected to following condition restriction:
(i) it is inconsistent and be subjected to when spacing that described rotary knob rod turns to first side of first side of first projection on the positioning wheel and first block on the valve gap, and fuel gas plug valve is in closed condition;
(ii) be in the lower limit state at described rotary knob rod, and described rotary knob rod to turn to first extension part on the positioning wheel and first retaining wall on the valve gap inconsistent and be subjected to when spacing, the big fire hole on the spool just in time is connected with the gas-entered passageway of valve body;
It is inconsistent and be subjected to when spacing that (iii) described rotary knob rod turns to jut on the fixed aunular sheet and second retaining wall on the valve gap, and the small fire hole on the spool just in time is connected with the gas-entered passageway of valve body;
(iv) be in the upper limit state at described rotary knob rod, and it is inconsistent and be subjected to when spacing that described rotary knob rod is turned back to second side of second side of first projection on the positioning wheel and first block on the valve gap, and the big fire hole on the spool just in time is connected with the gas-entered passageway of valve body.
As further improvement, can also be provided with second extension part symmetrical on the described positioning wheel periphery wall with first extension part, this second extension part is used to locate big fire hole equally, also has the 3rd retaining wall in the inner chamber of described valve gap, be in the lower limit state at described rotary knob rod, and it is inconsistent and be subjected to when spacing that described rotary knob rod turns to first extension part on the positioning wheel and first retaining wall on the valve gap, second extension part on the positioning wheel also just in time with valve gap on the 3rd retaining wall inconsistent and be subjected to spacing, promptly, guarantee that the big fire hole on the spool just in time is connected with the gas-entered passageway of valve body, the rotation of positioning wheel is also more steady.
For making the positioning wheel structure that is centrosymmetric, make its rotation more steady, the upper surface of described positioning wheel can also be provided with and centrosymmetric second projection of first projection along circumference, correspondingly, described valve gap inside top also has with first block centrosymmetric, second block that can stop second projection, at above-mentioned (i) with (iv) under the state, on the positioning wheel a wherein side of second projection just in time with valve gap on the corresponding side of second block inconsistent and be subjected to spacing, so, two projections are conflicted simultaneously with two blocks respectively, make the spacing action of positioning wheel more steady, reliably.
Preferably, first projection, second projection on the described positioning wheel are all curved, and size is identical.
For making the locations of structures arrangement in the valve gap more reasonable, described fixed aunular sheet can be set in outside the top of spool, and rotate synchronously with spool, and described second retaining wall is lower than first retaining wall, so, fixed aunular sheet can be followed spool and freely be rotated, and makes things convenient for the jut on the fixed aunular sheet to touch second retaining wall, for ease of processing, first retaining wall and second retaining wall can join together.
The displacement of valve gap upper and lower is moving relatively can adopt existing variety of way to realize for described rotary knob rod, but for making modular construction simpler, be convenient to implement, the middle part of described rotary knob rod can have a bulge loop, outside the rotary knob rod, between the upper surface of the top of bulge loop and valve gap, be arranged with a spring, and the afterbody of rotary knob rod has a snap ring, this snap ring external diameter is stuck in the inside top of valve gap greatly than the center through hole of valve gap, so, push then pressure spring of rotary knob rod, make rotary knob rod be in the lower limit state, do not push rotary knob rod, then rotary knob rod can upwards reset under the restoring force effect of spring.
Compared with prior art, advantage of the present utility model is: work in coordination by the jut on first projection on the positioning wheel, first extension part and the fixed aunular sheet and first block on the valve gap, first retaining wall, second retaining wall, make stopcock when turning to the big fire position, be the big fire hole of spool when communicating with the gas-entered passageway of valve body, spool can be located; Stopcock turns to little when position fire, and promptly valve core rotation is when its small fire hole communicates with the gas-entered passageway of valve body, and spool also can be located; And when stopcock when little fire position returns back to the big fire position, promptly, spool is when the small fire hole and the gas-entered passageway communicating state of valve body return back to its big fire hole and communicate with the gas-entered passageway of valve body, also can accurately locate the position of spool, guarantee that the big fire hole on the spool communicates fully with the gas-entered passageway of valve body, make things convenient for stopcock to pull back to the big intensity of a fire, simple to operate, sensitive, be very suitable for practical application.
Description of drawings
Fig. 1 is the utility model embodiment's a structural representation.
Fig. 2 is the cross-sectional schematic of spool among the utility model embodiment.
Fig. 3 is the structural representation of valve gap inner chamber among the utility model embodiment.
Fig. 4 is the structural representation (from the lower surface angle) of positioning wheel among the utility model embodiment.
Fig. 5 is the structural representation that valve gap among the utility model embodiment, positioning wheel are connected with rotary knob rod.
Fig. 6 be among Fig. 1 A-A to sectional view (valve body and spool are in initial stopcock closed condition).
Fig. 7 is valve gap and the positioning wheel structural representation (from the valve gap top, the local omission in valve gap top) in initial stopcock closed condition.
Fig. 8 be among Fig. 1 A-A to sectional view (big fire hole and gas-entered passageway maintenance communicating state).
Fig. 9 keeps the structural representation (from the valve gap inner chamber) of communicating state at big fire hole and gas-entered passageway for valve gap and positioning wheel.
Figure 10 be among Fig. 1 A-A to sectional view (small fire hole and gas-entered passageway keep communicating state).
Figure 11 keeps the structural representation (from the valve gap inner chamber) of communicating state at small fire hole and gas-entered passageway for valve gap and fixed aunular sheet and positioning wheel.
Figure 12 be among Fig. 1 A-A to sectional view (big fire hole and gas-entered passageway maintenance communicating state).
Figure 13 returns back to the structural representation (from the valve gap top, the valve gap top is local omits) of its big fire hole and gas-entered passageway maintenance communicating state from its small fire hole and gas-entered passageway maintenance communicating state at spool for valve gap and positioning wheel.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
As Fig. 1～shown in Figure 13, this fuel gas plug valve comprises the valve body 1 that has gas-entered passageway 11 and outlet passageway 12, is arranged in the valve body 1 spool 2, the valve gap 3 that is fixed on valve body 1 end and a rotary knob rod 4 that can rotate relative to valve body 1;
Wherein, described spool 2 has center hole 21, and circumferential surface is provided with big fire hole 22, the small fire hole 23 that communicates with center hole 21;
The afterbody 41 of described rotary knob rod 4 passes the center through hole 31 of valve gap 3 and is inserted in the inner chamber of valve gap 3, the afterbody 41 of rotary knob rod 4 links to each other with the head transmission of spool 2 and can drive spool 2 and rotates synchronously, and, the middle part of described rotary knob rod 4 has a bulge loop 42, outside the rotary knob rod 4, between the top upper surface of bulge loop 42 and valve gap 3, be arranged with a spring 43, and the afterbody 41 of rotary knob rod 4 has a snap ring 44, these snap ring 44 external diameters are stuck in the inside top of valve gap 3 greatly than the center through hole 31 of valve gap 3, thereby under the restoring force effect of spring 43, valve gap 3 upper and lower displacement in certain distance is moving relatively for rotary knob rod 4, also be, under nature, snap ring 44 is stuck in the inside top of valve gap 3, at this moment, rotary knob rod 4 moves to upper limit, push the rotary knob rod 4 of knob and knob below as the user after, spring 43 compressions, at this moment, rotary knob rod 4 moves to lower limit, be the reliable rotary knob rod 4 lower limit bit positions that limit, outside the described rotary knob rod 4, also be provided with a cutting ferrule 45 within the bulge loop 42, by cutting ferrule 45 ends in the conflict at valve gap 3 tops and spacing;
The afterbody 41 of described rotary knob rod 4 is outside equipped with a positioning wheel 5, this positioning wheel 5 pass by rotary knob rod 4 afterbodys positioning wheel 5 central authorities prolate perforation 55 and can rotate synchronously with rotary knob rod 4, the upper surface that makes this positioning wheel 5 is near the internal surface at described valve gap 3 tops;
Described positioning wheel 5 structure that is centrosymmetric, the periphery wall of this positioning wheel 5 is outward extended with the extension part of two symmetries, i.e. first extension part 51, second extension part 52, these two extension parts all are used to locate big fire hole;
And, the upper surface of described positioning wheel 5 is provided with two projections that are centrosymmetric along circumference, i.e. first projection 53, second projection 54, first projection 53, second projection 54 are all curved, and size is identical, the moving distance of the upper and lower displacement of the height of two projections and rotary knob rod 4 adapts, and is under the lower limit state at rotary knob rod 4, and the top of two projections is positioned under the internal surface at valve gap 3 tops;
The inboard at described valve gap 3 tops has the block of two symmetries protruding to central authorities, promptly, first block 32 that can stop first projection 53, second block 33 that can stop second projection 54, and, having along rotary knob rod 4 in the inner chamber of valve gap 3 (generally is to be provided with in the counterclockwise direction in order to the sense of rotation of opening stopcock, inner chamber from valve gap 3, be exactly to be provided with along clockwise direction) first retaining wall 34 that sets gradually, second retaining wall 35, the 3rd retaining wall 36, first retaining wall 34, second retaining wall 35 joins together, and second retaining wall 35 is lower than first retaining wall 34 and forms step;
Be arranged with certain position ring plate 6 outside the top of described spool 3, this fixed aunular sheet 6 rotates synchronously with spool 3, and the periphery of this fixed aunular sheet 6 is outward extended with a jut 61 that is used to locate small fire hole.
Fuel gas plug valve working procedure of the present utility model is as follows:
In the present embodiment, it is the direction of opening stopcock then that rotary knob rod 4 rotates counterclockwise, and rotary knob rod 4 clockwise rotates and then is the direction of cut-out tap valve;
(i) when stopcock is in initial closed condition, referring to Fig. 5, Fig. 6, Fig. 7, big fire hole 22 on the spool 2, small fire hole 23 is not connected with the gas-entered passageway 11 of valve body 1, rotary knob rod 4 and positioning wheel 5 and fixed aunular sheet 6 are in the initial position A that will begin to rotate, suppose that this moment, positioning wheel 5 and fixed aunular sheet 6 were 0 ° relative to the position that valve gap 3 rotates, and spool 2 also is 0 ° relative to the position that valve body 1 rotates, referring to Fig. 2, at this moment, first side 53a of first projection 53 on the positioning wheel 5 and the first side 32a of first block 32 on the valve gap 3 are inconsistent, second projection 54 on the positioning wheel 5 also with valve gap 3 on second block, 33 corresponding sides inconsistent, and it is spacing that rotary knob rod 4 is subjected to, and rotary knob rod 4 can not rotate counterclockwise;
The angle of the big fire hole 22 on the spool 2, the position relative initial closed state of small fire hole 23 on spool 2 circumferential surfacies is respectively α, β, in the present embodiment, α is that 90 °, β are 165 °, accordingly, first retaining wall 34 on the valve gap 3 is arranged on the position of 90 ° in the direction that rotates counterclockwise along rotary knob rod 4, second retaining wall 35 is arranged on the position of 165 ° in the direction that rotates counterclockwise along rotary knob rod 4, and the 3rd retaining wall 36 is arranged on the position of 270 ° in the direction that rotates counterclockwise along rotary knob rod 4;
(ii) press down rotary knob rod 4, and make its relative valve body 1, valve gap 3 rotates counterclockwise, rotary knob rod 4 will drive spool 2 and rotate synchronously relative to valve body 1, be under the lower limit state at rotary knob rod 4, first projection 53 on the positioning wheel 5, second projection 54 detaches first block 32 at valve gap 3 tops, second block 33, be that positioning wheel 5 is removed the relation of conflict with valve gap 3, and rotary knob rod 4 and positioning wheel 5 can be rotated counterclockwise smoothly, thereby open stopcock, when rotary knob rod 4 still is in the lower limit state, and after rotary knob rod 4 rotates 90 °, first retaining wall 34 on first extension part 51 on the positioning wheel 5 and the valve gap 3 is inconsistent and be subjected to spacing, second extension part 52 on the positioning wheel 5 also just in time with valve gap 3 on the 3rd retaining wall 36 inconsistent and be subjected to spacing, at this moment, the big fire hole 22 on the spool 2 just in time is connected with the gas-entered passageway 11 of valve body 1, referring to Fig. 8 and Fig. 9, if the user wants the maximum intensity of a fire, can unclamp knob and rotary knob rod 4;
If (iii) the user wants the little intensity of a fire, the user can continue to rotate counterclockwise rotary knob rod 4, after rotating 165 °, second retaining wall 35 on jut 61 on the fixed aunular sheet 6 and the valve gap 3 is inconsistent and be subjected to spacing, at this moment, small fire hole 23 on the spool 2 just in time is connected with the gas-entered passageway 11 of valve body 1, and referring to Figure 10 and Figure 11, after this rotary knob rod 4 can't continue to rotate counterclockwise;
If (iv) the user wants to come back to the big intensity of a fire from the little intensity of a fire, need not to press down rotary knob rod 4, be in the upper limit state at rotary knob rod 4, and after 75 ° of the rotary knob rod revolutions, second side 53b of first projection 53 on the positioning wheel 5 and the second side 32b of first block 32 on the valve gap 3 are inconsistent and be subjected to spacing, second projection 54 on the positioning wheel 5 also with valve gap 3 on second block, 33 corresponding sides inconsistent, at this moment, big fire hole 22 on the spool 2 just in time is connected with the gas-entered passageway 11 of valve body 1 again, referring to Figure 12 and Figure 13;
Afterwards, if the cut-out tap valve, only need press down rotary knob rod 4 once more and return back to initial position A, opposite side that rotary knob rod 4 can be by second extension part 52 on the positioning wheel 5 and second retaining wall 35 37 is inconsistent be subjected to spacing.
Claims (6)
1. fuel gas plug valve comprises the valve body (1) that has gas-entered passageway (11) and outlet passageway (12), is arranged on spool (2), the valve gap (3) that is fixed on valve body (1) end and a rotary knob rod (4) that can rotate relative to valve body (1) in the valve body (1); Wherein, described spool (2) has center hole (21), and circumferential surface is provided with big fire hole (22), the small fire hole (23) that communicates with center hole (21); The afterbody of described rotary knob rod (4) passes the center through hole (31) at valve gap (3) top and is inserted in the inner chamber of valve gap (3), and this rotary knob rod (4) can move and can drive spool (2) and rotate synchronously relative to valve gap (3) upper and lower displacement; It is characterized in that:
The afterbody (41) of described rotary knob rod (4) is outside equipped with a positioning wheel (5) that rotates synchronously with rotary knob rod (4), the upper surface of this positioning wheel (5) is near the internal surface at described valve gap (3) top, and, the periphery wall of this positioning wheel (5) stretches out and is useful on first extension part (51) of the big fire hole in location (22), the upper surface of this positioning wheel (5) is provided with first projection (53) along circumference, the moving distance of the upper and lower displacement of the height of first projection (53) and rotary knob rod (4) adapts, be under the lower limit state at rotary knob rod (4), the top of first projection (53) is positioned under the internal surface at valve gap (3) top;
The inside top of described valve gap (3) has first block (32) that protrude, that can stop first projection (53) to central authorities, and, have first retaining wall (34), second retaining wall (35) in the inner chamber of valve gap (3);
In addition, also include a fixed aunular sheet (6) that rotates synchronously with rotary knob rod (4), the periphery of this fixed aunular sheet (6) is outward extended with a jut (61) that is used to locate small fire hole (23);
The position of the jut (61) on first block (32) on first extension part (51) on the described positioning wheel (5), first projection (53), the valve gap (3), first retaining wall (34), second retaining wall (35) and the fixed aunular sheet (6) is subjected to following condition restriction:
(i) first side (32a) of first block (32) on described rotary knob rod (4) first side (53a) that turns to first projection (53) on the positioning wheel (5) and the valve gap (3) is inconsistent and be subjected to when spacing, and fuel gas plug valve is in closed condition;
(ii) be in the lower limit state at described rotary knob rod (4), and it is inconsistent and be subjected to when spacing that described rotary knob rod (4) turns to first retaining wall (34) on first extension part (51) and the valve gap (3) on the positioning wheel (5), and the big fire hole (22) on the spool (2) just in time is connected with the gas-entered passageway (11) of valve body (1);
It is inconsistent and be subjected to when spacing that (iii) described rotary knob rod (4) turns to second retaining wall (35) on jut (61) and the valve gap (3) on the fixed aunular sheet (6), and the small fire hole (23) on the spool (2) just in time is connected with the gas-entered passageway (11) of valve body (1);
(iv) be in the upper limit state at described rotary knob rod (4), and second side (32b) of first block (32) on second side (53b) that described rotary knob rod (4) is turned back to first projection (53) on the positioning wheel (5) and the valve gap (3) is inconsistent and be subjected to when spacing, and the big fire hole (22) on the spool (2) just in time is connected with the gas-entered passageway (11) of valve body (1).
2. fuel gas plug valve according to claim 1, it is characterized in that: also be provided with second extension part (52) symmetrical on described positioning wheel (5) periphery wall with first extension part (51), also has the 3rd retaining wall (36) in the inner chamber of described valve gap (3), under described (ii) state, second extension part (52) on the positioning wheel (5) just in time with valve gap (3) on the 3rd retaining wall (36) inconsistent and be subjected to spacing.
3. fuel gas plug valve according to claim 1, it is characterized in that: the upper surface of described positioning wheel (5) also is provided with and centrosymmetric second projection of first projection (53) (54) along circumference, correspondingly, described valve gap (3) inside top also has centrosymmetric with first block (32), as to stop second projection (54) second block (33), at above-mentioned (i) with (iv) under the state, a wherein side of last second projection of positioning wheel (5) (54) is just in time inconsistent with a corresponding side of last second block of valve gap (3) (33) and be subjected to spacing.
4. fuel gas plug valve according to claim 3 is characterized in that: first projection (53), second projection (54) on the described positioning wheel (5) are all curved, and size is identical.
5. fuel gas plug valve according to claim 1 is characterized in that: described fixed aunular sheet (6) is set in outside the top of spool (3), and rotates synchronously with spool (3), and described second retaining wall (35) is lower than first retaining wall (34).
6. according to the described fuel gas plug valve of arbitrary claim in the claim 1 to 5, it is characterized in that described rotary knob rod (4) the moving realization in the following way of valve gap (3) upper and lower displacement relatively: the middle part of described rotary knob rod (4) has a bulge loop (42), outside the rotary knob rod (4), between the top upper surface of bulge loop (42) and valve gap (3), be arranged with a spring (43), and the afterbody (41) of rotary knob rod (4) has a snap ring (44), and this snap ring (44) external diameter is stuck in the inside top of valve gap (3) greatly than the center through hole (31) of valve gap (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201815628U CN201672087U (en) | 2010-04-30 | 2010-04-30 | Combustion gas plug valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201815628U CN201672087U (en) | 2010-04-30 | 2010-04-30 | Combustion gas plug valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201672087U true CN201672087U (en) | 2010-12-15 |
Family
ID=43329499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201815628U Expired - Lifetime CN201672087U (en) | 2010-04-30 | 2010-04-30 | Combustion gas plug valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201672087U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832411A (en) * | 2010-04-30 | 2010-09-15 | 李雪亚 | Gas plug valve |
| CN104061340A (en) * | 2013-03-21 | 2014-09-24 | 关隆股份有限公司 | Closed piece for gas switch |
-
2010
- 2010-04-30 CN CN2010201815628U patent/CN201672087U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832411A (en) * | 2010-04-30 | 2010-09-15 | 李雪亚 | Gas plug valve |
| CN104061340A (en) * | 2013-03-21 | 2014-09-24 | 关隆股份有限公司 | Closed piece for gas switch |
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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: 20101215 Effective date of abandoning: 20110803 |