CN206310005U - A kind of burnt gas leakage security valve - Google Patents
A kind of burnt gas leakage security valve Download PDFInfo
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- CN206310005U CN206310005U CN201621489386.8U CN201621489386U CN206310005U CN 206310005 U CN206310005 U CN 206310005U CN 201621489386 U CN201621489386 U CN 201621489386U CN 206310005 U CN206310005 U CN 206310005U
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Abstract
The utility model provides a kind of burnt gas leakage security valve, belongs to gas safe technical field.It solves the technical problems such as existing burnt gas leakage security valve structure is not compact.This burnt gas leakage security valve includes valve body, the valve ball being arranged in valve body and can drive the valve rod of valve ball rotation, safety valve also includes spring, check lever and is fixed on the diaphragm seal of check lever one end, non-return bearing is fixed with valve ball, check lever is slidably connected on non-return bearing, diaphragm seal is located in valve ball, spring is arranged between check lever and non-return bearing, gas gap was formed between diaphragm seal and valve ball under the action of the spring, diaphragm seal can be formed with valve ball and sealed when diaphragm seal is moved to the gas outlet of valve ball.The utility model has can realize the switch of combustion gas, also can automatically block combustion gas when combustion gas is leaked, and the compact conformation of safety valve advantage.
Description
Technical field
The utility model belongs to gas safe technical field, is related to a kind of burnt gas leakage security valve.
Background technology
Combustion gas occurs pipe leakage or the suddenly situation of rupture in, safe in order to ensure using for combustion gas, needs
Pipeline can be blocked automatically when seepage or rupture suddenly occurs in pipeline, it is to avoid combustion gas is persistently leaked, and at present, is mainly passed through
Safety valves for gas is set in fuel gas pipeline to realize.
When seepage or rupture suddenly occurs in pipeline, gas flow can be sharply increased in pipeline, existing safety valves for gas
Mainly realized blocking pipeline according to the change of gas flow in pipeline.Such as disclosed in Chinese patent literature safety valves for gas
【Authorization Notice No. CN201363450Y】, including the valve body with inlet channel and outlet passageway, valve rod, valve are provided with valve body
One end of bar is connected with valve ball, and the other end passes valve body and is connected with handle, and valve core rod is provided with inlet channel, has on valve core rod
Sealing block, be provided with valve core rod can make to be formed between sealing block and inlet channel be available for gap that certain flow combustion gas passes through or
Can make sealing block that the controlling organization of sealing is formed with inlet channel.Valve ball be used in routine use controlled valve, sealing block and
The structure of valve core rod is used for the sealed valve body when gas leakage occurs in pipeline, and valve ball is located at inlet channel and outlet is logical in the patent
Between road, in inlet channel, both are separate to the structure setting of sealing block and valve core rod, in order to be set in valve body
The structure of valve ball and sealing block and valve core rod, it is necessary to by valve body do it is larger, to meet the demand of installation, cause gas safe
Valve is integrally larger, and structure is not compact.
The content of the invention
The purpose of this utility model is directed to existing technology and there is above mentioned problem, it is proposed that a kind of gas leakage safety
Valve, the technical problem that the utility model is solved is the switch that safety valve can realize combustion gas, also can be when combustion gas is leaked certainly
Dynamic blocking combustion gas, and safety valve compact conformation.
The purpose of this utility model can be realized by following technical proposal：
A kind of burnt gas leakage security valve, including valve body, the valve ball being arranged in valve body and the valve rod that valve ball can be driven to rotate,
Safety valve also includes spring, check lever and is fixed on the diaphragm seal of check lever one end, it is characterised in that be fixed with the valve ball
Non-return bearing, the check lever is slidably connected on non-return bearing, and the diaphragm seal is located in valve ball, and the spring is arranged on only
Return between bar and non-return bearing, gas gap was formed between the diaphragm seal and valve ball under the action of the spring, diaphragm seal to
Diaphragm seal can be formed with valve ball and sealed when the gas outlet of valve ball is moved.
One end of valve body is connected with gas cylinder or main combustible pipe road, and the other end of valve body is connected with gas pipeline,
Being rotated by valve rod when using has passage in valve ball, valve ball, passage end is air inlet, and the other end is gas outlet, works as valve ball
The air inlet of passage is connected with one end of valve body, and when the gas outlet of valve ball passage connects with the other end of valve body, safety valve is to beat
Open state, combustion gas is transported on gas pipeline by the passage of valve ball, and now combustion gas enters passage from air inlet, by between gas excessively
Flowed out from gas outlet after gap, the flow velocity of combustion gas is stable, and combustion gas acts on the elastic force between the pressure on diaphragm seal and spring
It is balance, therefore the position of diaphragm seal is fixed, the gas gap of crossing between diaphragm seal and valve ball exists all the time；Work as Gas Pipe
Road seepage or when rupturing suddenly, due to the decline of the lateral pressure of gas pipeline one, the flow velocity of combustion gas can be improved suddenly, combustion gas effect
Pressure on diaphragm seal increases suddenly, and the pressure that combustion gas is acted on diaphragm seal overcomes the elastic force of spring so that diaphragm seal court
To gas outlet move, diaphragm seal move to valve ball against position when valve ball is sealed, now combustion gas cannot be defeated by valve ball
Gas pipeline is sent to, the situation that combustion gas is leaked from gas pipeline is also avoided；Simultaneously because diaphragm seal is located at gas pipeline
The pressure of side is located at the pressure of valve ball air inlet side much smaller than diaphragm seal, and diaphragm seal can remain the shape for sealing valve ball
State, combustion gas is blocked when combustion gas is leaked automatically；When causing that valve ball is not connected with valve body by valve rod rotation valve ball, safety
Valve is closed mode, now acts on the distress resolves on diaphragm seal, now causes diaphragm seal to valve ball by the elastic force of spring
Air inlet side movement return.
Check lever, spring and diaphragm seal are fixed in valve ball by non-return bearing so that the compact conformation of safety valve, and close
Gas gap of crossing between mounting and valve ball also can guarantee that passing through for combustion gas when normally using, and not influence the normal of valve ball to use；
The structure of valve body can be with relatively small simultaneously, and the consumptive material needed for production valve body is less, and the cost for reducing safety valve is relatively low；Close
Need to only valve ball be rotated during mounting return so that safety valve closing, easy to operate.
In above-mentioned burnt gas leakage security valve, the inwall of the valve ball is located at gas outlet with projection and in a ring
Sealing convex edge, the diaphragm seal can move to sealing convex edge and with sealing convex edge against.When combustion gas is not leaked diaphragm seal with it is close
There is spacing, now combustion gas can pass through gas gap by valve ball, and diaphragm seal is convex with sealing in gas leakage between envelope convex edge
Along against diaphragm seal closes gas outlet, also just seals valve ball, it is to avoid combustion gas is realized being let out in combustion gas by valve ball
Combustion gas is blocked during leakage automatically；Diaphragm seal is in valve ball with the sealing convex edge of valve ball so that the compact conformation of safety valve.
As another situation, in above-mentioned burnt gas leakage security valve, there is one section of seal section in the valve ball, it is described
The diameter of seal section is gradually reduced near air inlet one end near gas outlet one end, and the diameter of the seal section is less than sealing
The diameter of piece, when combustion gas is not leaked, the diaphragm seal is located at seal section in the valve ball of air inlet side, in gas leakage
Shi Suoshu diaphragm seals can move in seal section and with the inner wall sealing of seal section against.When combustion gas is not leaked, diaphragm seal is located at
The outside of seal section, therefore combustion gas can pass through gas gap by seal section, in gas leakage, diaphragm seal can move to sealing
Blocked against by seal section with the inner wall sealing of seal section in section, also just seal valve ball, it is to avoid combustion gas passes through valve ball, realization
Combustion gas is blocked when combustion gas is leaked automatically；Seal section is the structure of valve ball, and diaphragm seal is in valve ball so that the knot of safety valve
Structure is compact.
In above-mentioned burnt gas leakage security valve, the diaphragm seal is rounded, and gas is crossed between the diaphragm seal and valve ball
Gap width all same.The structure causes that combustion gas acts on the pressure on diaphragm seal and is uniformly distributed, it is to avoid diaphragm seal because of pressure not
Deform the situation for causing diaphragm seal to be sealed with valve ball with appearance, it is ensured that diaphragm seal blocks combustion automatically when combustion gas is leaked
Gas.
In above-mentioned burnt gas leakage security valve, the non-return bearing includes tubular main body and some legs, some
The leg is distributed in main body outside in a ring, and some legs are with the inwall of valve ball against the check lever is located in
In main body.By the leg of annular spread cause tubular main body be located at valve ball center, check lever with it is tubular
Main body connection ensure check lever all the time along valve ball passage bearing of trend set, it is to avoid check lever occur inclination cause diaphragm seal with
Changing occurs in gas gap of crossing between the inwall of valve ball.
There is step surface in a ring, the step in above-mentioned burnt gas leakage security valve, on the inwall of the valve ball
Have facing to gas outlet, on the leg can with step surface against confined planes, have on the leg and extend to gas outlet
The first extension, first extension can with sealing convex edge against.By leg upper limit plane and step surface and first
Extension and sealing convex edge against structure cause that leg position in valve ball, it is to avoid there is mobile situation, guarantor in non-return bearing
Combustion gas can be normal through gas gap excessively when card combustion gas is not leaked, it is ensured that the normal of safety valve is used.
In above-mentioned burnt gas leakage security valve, limited impression in a ring is provided with the medial surface of the sealing convex edge,
The end of first extension snap in limited impression and with sealing convex edge against.First extension and the cooperation of limited impression
It is avoided that sliding occurs in the end opposing seal convex edge of the first extension so that what non-return bearing can be more stable is fixed on valve ball
It is interior, so that the position of diaphragm seal is stablized, it is ensured that combustion gas can be normal through gas gap excessively when combustion gas is not leaked, it is ensured that safety valve
Normal use.
Also there is the second extension extended to air inlet, institute in above-mentioned burnt gas leakage security valve, on the leg
Stating the second extension can recline with the inwall of valve ball.Second extension can increase the contact area of leg and valve ball inwall so that
Non-return bearing more stable can be fixed in valve ball, so that the position stabilization of diaphragm seal, it is ensured that combustion gas when combustion gas is not leaked
Can be normal through gas gap excessively, it is ensured that the normal of safety valve is used.
In above-mentioned burnt gas leakage security valve, inwall of the main body near gas outlet one end has against convex edge one,
Away from having on one end of diaphragm seal against convex edge two and against convex edge two in main body, the spring is arranged the check lever
On check lever, the two ends of the spring respectively with against convex edge one and against convex edge two against.Check lever is moved relative to main body
When against convex edge two cause check lever axis all the time with the axis collinear of main body, it is to avoid inclination occurs in check lever causes check lever
There is stuck situation so that diaphragm seal can move the gas outlet to valve ball in gas leakage and be sealed against with valve ball,
Combustion gas is blocked when combustion gas is leaked automatically.
In above-mentioned burnt gas leakage security valve, end of the check lever away from one end of diaphragm seal when combustion gas is not leaked
Face and the end face against convex edge two are close to the end face of air inlet one end with main body.The structure combustion gas normal through when make
Obtain the gentle disturbance flowed through valve ball, reduce to fuel gas flow of combustion gas so that the pressure that combustion gas is acted on diaphragm seal uniformly divides
Cloth, it is to avoid diaphragm seal causes diaphragm seal to seal valve ball because deformation occurs in pressure difference, it is ensured that diaphragm seal is when combustion gas is leaked
Automatic blocking combustion gas.
In above-mentioned burnt gas leakage security valve, annular groove is provided with the check lever, the check lever passes through sealing
Piece and diaphragm seal is stuck at annular groove.The structure be avoided that diaphragm seal with respect to check lever occur slide, it is ensured that diaphragm seal with only
Return the stability that bar is fixed.
Compared with prior art, this burnt gas leakage security valve can realize the switch of combustion gas, can also be leaked in combustion gas
Shi Zidong blocks combustion gas, while check lever, spring and diaphragm seal are fixed in valve ball by non-return bearing, therefore safety valve has
The advantage of compact conformation.
Brief description of the drawings
Fig. 1 is cross section structure diagram and part of this burnt gas leakage security valve when combustion gas is not leaked and under open mode
Enlarged drawing.
Fig. 2 is cross section structure diagram and partial enlarged drawing of this burnt gas leakage security valve in gas leakage.
Cross section structure diagram when Fig. 3 is valve ball, check lever, diaphragm seal is connected.
Fig. 4 is the cross section structure diagram along A-A section views in Fig. 3.
Fig. 5 is the cross section structure diagram and partial enlarged drawing of valve ball.
Fig. 6 is the dimensional structure diagram of non-return bearing.
In figure, 1, valve body；11st, valve rod；2nd, valve ball；21st, passage；211st, air inlet；212nd, gas outlet；213rd, step surface；
22nd, convex edge is sealed；221st, limited impression；3rd, spring；4th, check lever；41st, annular groove；42nd, against convex edge two；5th, diaphragm seal；
51st, gas gap is crossed；6th, non-return bearing；61st, main body；611st, against convex edge one；62nd, leg；621st, confined planes；622nd, first extends
Section；623rd, the second extension.
Specific embodiment
The following is specific embodiment of the utility model and with reference to accompanying drawing, further is made to the technical solution of the utility model
Description, but the utility model is not limited to these embodiments.
Embodiment one
As shown in Figure 1 to Figure 3, burnt gas leakage security valve includes valve body 1, the valve ball 2 being arranged in valve body 1 and can drive valve
There is passage 21, one end of passage 21 is air inlet 211, and the other end of passage 21 is in the valve rod 11 that ball 2 is rotated, valve ball 2
Gas port 212；Safety valve also includes spring 3, check lever 4 and rounded diaphragm seal 5, annular groove 41 is provided with check lever 4, only
Bar 4 is returned to be stuck at annular groove 41 through diaphragm seal 5 and diaphragm seal 5.
As shown in Figures 1 to 4, non-return bearing 6 is fixed with valve ball 2, check lever 4 is located on non-return bearing 6 and non-return
Bar 4 is set along the bearing of trend of passage 21, and diaphragm seal 5 is located in valve ball 2 and near gas outlet 212, and spring 3 is arranged on check lever
Between 4 and non-return bearing 6, gas gap 51 was formed between diaphragm seal 5 and valve ball 2 in the presence of spring 3, do not leaked in combustion gas
When there is gas gap 51 between diaphragm seal 5 and the inwall of valve ball 2, cross gas gap 51 between diaphragm seal 5 and the inwall of valve ball 2
Width all same, being located on valve ball 2 has raised and sealing convex edge 22 in a ring at gas outlet 212, in diaphragm seal 5 to valve ball
Diaphragm seal 5 can be formed with valve ball 2 and sealed when 2 gas outlet 212 is moved.
Specifically, as shown in Figures 3 to 6, non-return bearing 6 includes tubular main body 61 and some legs 62, some
Leg 62 is distributed in the outside of main body 61 in a ring, and some legs 62 are with the inwall of valve ball 2 against main body 61 is prolonged along passage 21
Direction setting is stretched, check lever 4 is located in main body 61.There is step surface 213 in a ring, step surface 213 on the inwall of valve ball 2
Have towards gas outlet 212, on leg 62 can with step surface 213 against confined planes 621, have to gas outlet on leg 62
212 the first extensions 622 for extending, are provided with limited impression 221 in a ring, the first extension on the medial surface for sealing convex edge 22
622 end is snapped in limited impression 221 and with sealing convex edge 22 against also with to the extension of air inlet 211 on leg 62
Second extension 623, the second extension 623 can recline with the inwall of valve ball 2.
As shown in figure 3, inwall of the main body 61 near the one end of gas outlet 212 has against convex edge 1, check lever 4 away from
Have on one end of diaphragm seal 5 against convex edge 2 42 and be located in main body 61 against convex edge 2 42, spring 3 is set in check lever 4
On, the two ends of spring 3 respectively with against convex edge 1 and against convex edge 2 42 against；When combustion gas is not leaked check lever 4 away from
The end face of one end of diaphragm seal 5 and the end face against convex edge 2 42 are close to the end face of the one end of air inlet 211 with main body 61.
One end of valve body 1 is connected with gas cylinder or main combustible pipe road, and the other end of valve body 1 is connected with gas pipeline,
Valve ball 2, when the air inlet 211 of the valve ball 2 of valve ball 2 is connected with one end of valve body 1, valve ball 2 are rotated by valve rod 11 when in use
When gas outlet 212 connects with the other end of valve body 1, safety valve is open mode, and combustion gas is transported to combustion by the passage 21 of valve ball 2
In feed channel, now combustion gas enters passage 21 from air inlet 211, by being flowed out from gas outlet 212 behind gas gap 51 excessively, combustion gas
Flow velocity is stable, and the elastic force that combustion gas acts between the pressure on diaphragm seal 5 and spring 3 is to balance, therefore diaphragm seal 5
Position is fixed；When rupturing when gas pipeline seepage or suddenly, due to the decline of the lateral pressure of gas pipeline one, the stream of combustion gas
Speed can be improved suddenly, and the pressure that combustion gas is acted on diaphragm seal 5 increases suddenly, and the pressure that combustion gas is acted on diaphragm seal 5 overcomes
The elastic force of spring 3 causes that diaphragm seal 5 is moved towards gas outlet 212, and change occurs in the position of diaphragm seal 5, and diaphragm seal 5 is moved to
With valve ball 2 against position when valve ball 2 is sealed, now combustion gas cannot be transported to gas pipeline by valve ball 2, also avoid
The situation that combustion gas is leaked from gas pipeline；Simultaneously because the pressure that diaphragm seal 5 is located at gas pipeline side is much smaller than diaphragm seal 5
Positioned at the pressure of the side of air inlet 211 of valve ball 2, diaphragm seal 5 can remain the state for sealing valve ball 2, occur in combustion gas
Combustion gas is blocked during leakage automatically；When valve ball 2 is rotated so that valve ball 2 is not connected with valve body 1 by valve rod 11, safety valve is closing
State, now acts on the distress resolves on diaphragm seal 5, now causes the entering to valve ball 2 of diaphragm seal 5 by the elastic force of spring 3
Move return in the side of gas port 211.
Embodiment two
The present embodiment is essentially identical with the structure and principle of embodiment one, and different place is：Have one in valve ball 2
Section seal section, the diameter of seal section is gradually reduced near the one end of air inlet 211 near the one end of gas outlet 212, seal section
Less than the diameter of diaphragm seal 5, when combustion gas is not leaked, diaphragm seal 5 is located at valve ball 2 of the seal section near the side of air inlet 211 to diameter
It is interior, in gas leakage diaphragm seal 5 can move in seal section and with the inner wall sealing of seal section against.When combustion gas is not leaked
Diaphragm seal 5 is located at the outside of seal section, therefore combustion gas can pass through gas gap 51 by seal section, the diaphragm seal in gas leakage
5 can move to and blocked against by seal section with the inner wall sealing of seal section in seal section, also just seal valve ball 2, it is to avoid fire
Gas blocks combustion gas automatically by valve ball 2, realization when combustion gas is leaked；Seal section is the structure of valve ball 2, and diaphragm seal 5 is in valve
In ball 2 so that the compact conformation of safety valve.
Specific embodiment described herein is only to the utility model spirit explanation for example.The utility model institute
Category those skilled in the art can make various modifications or supplement or using similar to described specific embodiment
Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.
Claims (10)
1. a kind of burnt gas leakage security valve, including valve body (1), the valve ball (2) being arranged in valve body (1) and valve ball (2) can be driven
The valve rod (11) of rotation, safety valve also includes spring (3), check lever (4) and is fixed on the diaphragm seal (5) of check lever (4) one end,
Characterized in that, being fixed with non-return bearing (6) in the valve ball (2), the check lever (4) is slidably connected at non-return bearing (6)
On, in valve ball (2), the spring (3) is arranged between check lever (4) and non-return bearing (6) diaphragm seal (5),
Gas gap (51) was formed between the diaphragm seal (5) and valve ball (2) in the presence of spring (3), in diaphragm seal (5) to valve ball
(2) diaphragm seal (5) can be formed with valve ball (2) and sealed when gas outlet (212) is mobile.
2. burnt gas leakage security valve according to claim 1, it is characterised in that the inwall of the valve ball (2) is located at outlet
Mouthful (212) place has a raised and sealing convex edge (22) in a ring, the diaphragm seal (5) can move to seal convex edge (22) and with
Sealing convex edge (22) against.
3. burnt gas leakage security valve according to claim 1, it is characterised in that the diaphragm seal (5) is rounded, described close
Gas gap (51) width all same is crossed between mounting (5) and valve ball (2).
4. the burnt gas leakage security valve according to claim 1 or 2 or 3, it is characterised in that the non-return bearing (6) includes
Tubular main body (61) and some legs (62), some legs (62) are distributed in main body (61) outside in a ring, some
The leg (62) is with the inwall of valve ball (2) against the check lever (4) is located in main body (61).
5. burnt gas leakage security valve according to claim 4, it is characterised in that have on the inwall of the valve ball (2) and be in
The step surface (213) of annular, the step surface (213) has energy and step surface towards gas outlet (212) on the leg (62)
(213) against confined planes (621), on the leg (62) have to gas outlet (212) extend the first extension (622),
First extension (622) can with sealing convex edge (22) against.
6. burnt gas leakage security valve according to claim 5, it is characterised in that on the medial surface of the sealing convex edge (22)
Be provided with limited impression (221) in a ring, the end of first extension (622) snap in limited impression (221) and with it is close
Envelope convex edge (22) against.
7. burnt gas leakage security valve according to claim 4, it is characterised in that also have to air inlet on the leg (62)
The second extension (623) that mouth (211) extends, second extension (623) can recline with the inwall of valve ball (2).
8. burnt gas leakage security valve according to claim 4, it is characterised in that the main body (61) is near gas outlet
(212) inwall of one end has against convex edge one (611), the check lever (4) away from have on one end of diaphragm seal (5) against
Convex edge two (42) and against convex edge two (42) in the main body (61), the spring (3) is set on check lever (4), the bullet
The two ends of spring (3) respectively with against convex edge one (611) and against convex edge two (42) against.
9. burnt gas leakage security valve according to claim 8, it is characterised in that the check lever when combustion gas is not leaked
(4) end face of one end and the end face against convex edge two (42) away from diaphragm seal (5) are close to air inlet (211) with main body (61)
The end face of one end.
10. the burnt gas leakage security valve according to claim 1 or 2 or 3, it is characterised in that be provided with the check lever (4)
Annular groove (41), the check lever (4) is through diaphragm seal (5) and diaphragm seal (5) is stuck in annular groove (41) place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621489386.8U CN206310005U (en) | 2016-12-30 | 2016-12-30 | A kind of burnt gas leakage security valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621489386.8U CN206310005U (en) | 2016-12-30 | 2016-12-30 | A kind of burnt gas leakage security valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206310005U true CN206310005U (en) | 2017-07-07 |
Family
ID=59247956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621489386.8U Active CN206310005U (en) | 2016-12-30 | 2016-12-30 | A kind of burnt gas leakage security valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206310005U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499849A (en) * | 2016-12-30 | 2017-03-15 | 玉环县中良铜业有限公司 | A kind of burnt gas leakage security valve |
-
2016
- 2016-12-30 CN CN201621489386.8U patent/CN206310005U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499849A (en) * | 2016-12-30 | 2017-03-15 | 玉环县中良铜业有限公司 | A kind of burnt gas leakage security valve |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Science and Technology Industrial Park in Yuhuan city of Zhejiang Province in 317605 (Truman Hu Xinduan) Patentee after: Yuhuan Zhongliang fluid intellectual control Limited by Share Ltd Address before: Yuhuan County science and Technology Industrial Park in Taizhou City, Zhejiang province 317605 (Truman Hu Xinduan) Patentee before: Zhongliang Copper Industry Co., Ltd. |
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| CP03 | Change of name, title or address | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Gas leakage safety valve Effective date of registration: 20190508 Granted publication date: 20170707 Pledgee: Industrial Commercial Bank of China Ltd Yuhuan branch Pledgor: Yuhuan Zhongliang fluid intellectual control Limited by Share Ltd Registration number: 2019330000123 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |