CN209892822U - Gas connecting device with super current protection and steady voltage function - Google Patents
Gas connecting device with super current protection and steady voltage function Download PDFInfo
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- CN209892822U CN209892822U CN201920441381.5U CN201920441381U CN209892822U CN 209892822 U CN209892822 U CN 209892822U CN 201920441381 U CN201920441381 U CN 201920441381U CN 209892822 U CN209892822 U CN 209892822U
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Abstract
The utility model discloses a gas connecting device with super current protection and steady voltage function, when the external air pressure of admitting air is too big, the ejector pin receives the air pressure thrust effect and moves to the direction of the deformable separation blade, reduces the air flow space between the convex ring part and the first valve port gradually, thus the flow through the first valve port can not increase suddenly, and when the external air pressure of admitting air falls down, the air pressure thrust to the ejector pin also reduces, at this time, under the elastic reset action of the first spring, the deformable separation blade and the ejector pin move reversely, thus the air flow space between the convex ring part and the first valve port gradually increases, thereby the flow through the first valve port can not decrease suddenly, and the steady voltage control is facilitated; in addition, when the outer end of the second valve port has an overflow phenomenon, for example, flame of the connected gas appliance is burnt too fast, the second piston overcomes the elasticity of the third spring under the action of larger negative pressure to seal the second valve port, and only the through small hole is left for ventilation, so that the flame of the gas appliance is changed into micro-fire, and the overflow protection function is realized.
Description
Technical Field
The utility model relates to a gas connecting device with super current protection and steady voltage function.
Background
In daily life, people often need to use gas appliances for cooking, heating, lighting and the like, so that gas safety is a very important problem for people. At present, the gas appliances on the market generally adopt simple connection structures with an air source, and can not cope with some emergency situations, such as: connectors between some gas appliances and gas sources do not have the function of flow limiting, when the output airflow of the gas sources is too high, the combustion flame of the gas appliances becomes abnormally high, and the risks of overloading, burning out and even fire and the like of the gas appliances are easy to occur; in addition, when a fire occurs, the general gas appliance and the connection structure thereof cannot cut off gas flow from the root, and the safety is poor.
Therefore, how to overcome the above-mentioned drawbacks has become an important issue to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model overcomes above-mentioned technique is not enough, provides a gas connecting device with super current protection and steady voltage function.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a gas connecting device with super-flow protection and pressure stabilization functions comprises a connecting body 1, wherein an air inlet cavity 2, an air outlet cavity 3 and a connecting channel 4 for connecting the air inlet cavity 2 and the air outlet cavity 3 are arranged in the connecting body 1, the air inlet cavity 2 is sequentially provided with a first spring 21, a deformable separation baffle 22 for separating the air inlet cavity 2 into an upper sub-cavity and a lower sub-cavity, a first valve port 23 for allowing air to pass through, a top rod 24 with one end penetrating through the first valve port 23 and contacting with the deformable separation baffle 22, a second spring 25 for elastically pressing the other end of the top rod 24, and an air inlet nozzle 26 for pressing the other end of the second spring 25, the first spring 21 is used for elastically pressing the deformable separation baffle 22 and/or the top rod 24, a convex ring part 241 for gradually reducing the air flow space between the top rod 24 and the first valve port 23 when the top rod 24 moves towards the deformable separation baffle 22 is arranged on the periphery of the top rod 24, the air outlet cavity 3 is sequentially provided with a second piston 31, a second valve port 32 which can be sealed by the second piston 31, a third spring 33 with one end elastically pressing the second piston 31 to reset and open the second valve port 32, and an air outlet nozzle 34 for abutting against the other end of the third spring 33 from the bottom to the outside of the cavity, a through small hole 311 for communicating the second piston 31 up and down is arranged in the second piston 31, one end of the connecting channel 4 is communicated with the section of the air inlet cavity 2 between the deformable separation blade 22 and the first valve port 23, and the other end is communicated with the section of the air outlet cavity 3 between the bottom in the cavity of the air outlet cavity 3 and the second valve port 32.
In the gas connecting device with the functions of over-flow protection and pressure stabilization, as mentioned above, the deformable separation blade 22 is installed at the end of the ejector rod 24, the inner side wall of the air inlet cavity 2 is provided with a first annular positioning step 201 and a second annular positioning step 202 which are sequentially far away from the bottom direction in the cavity of the air inlet cavity 2, the section of the top rod 24 between the convex ring part 241 and the deformable separation blade 22 is sleeved with an annular pressing block 27 for pressing the periphery of the deformable separation blade 22 to the first annular positioning step 201, the outer side wall of the annular pressing block 27 is matched with the inner side wall of the air inlet cavity 2 so that the annular pressing block 27 is fixed in the air inlet cavity 2, the first valve port 23 is arranged in the annular pressing block 27, a passage 271 is arranged in the annular pressing block 27 to facilitate the communication between the first valve port 23 and the connecting channel 4, and the air inlet nozzle 26 is positioned and mounted at the second annular positioning step 202.
In the gas connecting device with the functions of over-flow protection and pressure stabilization, the deformable separation blade 22 is locked at the end part of the ejector rod 24 through a pressing block.
In the gas connecting device with the functions of super-flow protection and pressure stabilization, the gas outlet nozzle 34 is in threaded connection with the gas outlet cavity 3 so as to adjust the elastic coefficient of the third spring 33 by rotating the gas outlet nozzle 34; or an annular seat 35 is fixed in the air outlet cavity 3, the second valve port 32 is arranged in the annular seat 35, and the air outlet nozzle 34 is screwed into the annular seat 35 so as to adjust the elastic coefficient of the third spring 33 by rotating the air outlet nozzle 34.
In the gas connecting device with the functions of super-flow protection and pressure stabilization, the second piston 31 is provided with a plurality of convex parts 312 protruding towards the bottom of the cavity of the gas outlet cavity 3, and a gap channel 313 passing from the outer side of the second piston 31 to the through small hole 311 is formed between the adjacent convex parts 312.
In the gas connecting device with the functions of super-flow protection and pressure stabilization, the outer side of the protruding portion 312 is provided with a gradually changing wall surface 3121 whose contour gradually decreases toward the center of the second piston 31.
According to the gas connecting device with the functions of over-flow protection and pressure stabilization, the outer side wall of the connecting body 1 is provided with the high-temperature protection ring 5 used for rapidly dissolving when the temperature is too high, and the connecting body 1 is externally provided with the connecting hand wheel 6 used for abutting against the high-temperature protection ring 5 so as to enable the air inlet nozzle 26 to be abutted to an external connected piece.
According to the gas connecting device with the functions of super-current protection and pressure stabilization, the inner side wall of the connecting hand wheel 6 is provided with the internal thread 61 for being in threaded connection with an external connected piece.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the arrangement of the first spring, the deformable separation blade, the first valve port, the ejector rod, the second spring and the air inlet nozzle in the air inlet cavity ensures that the ejector rod moves towards the deformable separation blade under the action of air inlet thrust when the external air inlet pressure is too large, the airflow space between the convex ring part and the first valve port is gradually reduced, so that the flow passing through the first valve port cannot be suddenly increased, the air inlet thrust to the ejector rod is reduced after the external air inlet pressure is reduced, and at the moment, under the elastic resetting action of the first spring, the deformable separation blade and the ejector rod reversely move, so that the airflow space between the convex ring part and the first valve port is gradually increased, the flow passing through the first valve port cannot be suddenly reduced, and the air inlet cavity is favorable for pressure stabilization control and has substantial characteristics and progress; in addition, the deformable separation blade is used for preventing gas from entering the sub cavity where the first spring is located when the deformable separation blade is used, so that the first spring is prevented from elastically pressing the deformable separation blade; the second piston, the second valve port, the third spring and the air outlet nozzle are arranged in the air outlet cavity, so that when the overflow phenomenon occurs at the outer end of the second valve port, for example, flame of a connected gas appliance is burnt too fast, the second piston overcomes the elastic force of the third spring under the action of larger negative pressure to seal the second valve port, only the through small hole is left for ventilation, the flame of the gas appliance is changed into micro-fire, the overflow protection function is realized, when the overflow phenomenon stops, for example, a user closes the gas appliance to gradually balance the air pressure on two sides of the second piston under the action of the through small hole, the second piston automatically resets under the action of the third spring, the second valve port is opened again, and the next round of work is prepared.
2. The first annular positioning step and the annular pressing block are arranged to facilitate the first valve port to be arranged in the air inlet cavity in an assembling mode, the first valve port is convenient to arrange, the second annular positioning step is arranged to facilitate the first spring, the deformable separation blade, the annular pressing block, the ejector rod and the second spring to be arranged in the air inlet cavity, and then the air inlet nozzle is fixed to abut against the second spring.
3. The air outlet nozzle is installed in a threaded connection mode, the elastic coefficient of the third spring can be adjusted conveniently by rotating the air outlet nozzle, different overflow thresholds can be conveniently adjusted according to actual conditions when the air outlet nozzle is connected with a gas appliance, the applicability is good, and the air outlet nozzle has substantial characteristics and progress.
4. The arrangement of the plurality of protruding portions and the arrangement of the gap channel on the second piston can prevent the through small holes from being tightly attached to the inner bottom of the air outlet cavity, so that the second piston is always tightly attached to the inner bottom of the air outlet cavity due to negative pressure, and can increase the air receiving space of the second piston, thereby preventing the situation that air flow entering the air outlet cavity from the connecting channel cannot blow the second piston to move towards the direction of the second valve port.
5. The outer side of the convex part is provided with a gradually-changed wall surface, the outline of which gradually reduces towards the center direction of the second piston, so that better stress of the second piston is facilitated, and the air flow entering the air outlet cavity from the connecting channel can better blow the second piston to move towards the direction of the second valve port.
6. The connecting body, the high-temperature protection ring and the connecting hand wheel are arranged, so that the high-temperature protection ring is quickly dissolved when the temperature is too high, the connecting hand wheel cannot enable the air inlet nozzle to be in butt joint with an external connected piece through the high-temperature protection ring, namely the air inlet nozzle is separated from the external connected piece, and in specific implementation, the external connected piece is closed under the action of an elastic reset mechanism of the external connected piece, so that a high-temperature shutoff function is realized, and the connecting body has substantial characteristics and remarkable progress.
Drawings
Fig. 1 is a perspective view of the present disclosure.
Fig. 2 is a sectional view taken at a-a in fig. 1.
Fig. 3 is an exploded view of the present connector.
Detailed Description
The features of the present invention and other related features are described in further detail below by way of examples to facilitate understanding by those skilled in the art:
as shown in fig. 1-3, a gas connecting device with super-flow protection and pressure stabilization functions comprises a connecting body 1, wherein the connecting body 1 is provided with an inlet cavity 2, an outlet cavity 3, and a connecting channel 4 connecting the inlet cavity 2 and the outlet cavity 3, the inlet cavity 2 is sequentially provided with a first spring 21, a deformable separation blade 22 for separating the inlet cavity 2 into an upper sub-cavity and a lower sub-cavity, a first valve port 23, a stem rod 24 having one end passing through the first valve port 23 and contacting the deformable separation blade 22, a second spring 25 for elastically pressing the other end of the stem rod 24, and an inlet nozzle 26 for pressing the other end of the second spring 25, the first spring 21 is used for elastically pressing the deformable separation blade 22 and/or the stem rod 24, the stem rod 24 is provided with a convex ring at its periphery for gradually reducing the gas flow space between the stem rod 24 and the first spring 25 when the stem rod 24 moves towards the deformable separation blade 22 The portion 241, the air outlet cavity 3 is sequentially provided with a second piston 31, a second valve port 32 which can be sealed by the second piston 31, a third spring 33 with one end elastically pressing the second piston 31 to reset the second piston to open the second valve port 32, and an air outlet nozzle 34 for abutting against the other end of the third spring 33 from the bottom to the outside of the cavity, the second piston 31 is provided with a through small hole 311 for the second piston 31 to communicate up and down, one end of the connecting channel 4 is communicated to the section of the air inlet cavity 2 between the deformable blocking piece 22 and the first valve port 23, and the other end is communicated to the section of the air outlet cavity 3 between the bottom of the cavity of the air outlet cavity 3 and the second valve port 32.
As mentioned above, in the air inlet cavity 2 of the present invention, the first spring 21, the deformable baffle plate 22, the first valve port 23, the push rod 24, the second spring 25 and the air inlet nozzle 26 are arranged, when the external air pressure is too high, the push rod 24 moves towards the deformable separation blade 22 under the action of the air pressure, gradually reducing the air flow space between the convex ring part 241 and the first valve port 23, so that the flow rate through the first valve port 23 does not increase suddenly, and when the external intake air pressure decreases, the air intake thrust to the ram 24 is also reduced, and at this time, under the elastic return action of the first spring 21, the deformable baffle 22 and the push rod 24 move in opposite directions, so that the airflow space between the convex ring part 241 and the first valve port 23 is gradually enlarged, thereby ensuring that the flow passing through the first valve port 23 is not suddenly reduced, being beneficial to the pressure stabilization control and having substantive characteristics and progress; in addition, the deformable separation blade 22 is used for preventing gas from entering the sub-cavity where the first spring 21 is located when the gas burner is used, so that the first spring 21 is influenced to elastically press the deformable separation blade 22; the second piston 31, the second valve port 32, the third spring 33 and the air outlet nozzle 34 in the air outlet cavity 3 are arranged, so that when an overflow phenomenon occurs at the outer end of the second valve port 32, for example, a flame of a connected gas appliance is burnt too fast, the second piston 31 overcomes the elastic force of the third spring 33 under the action of a large negative pressure to seal the second valve port 32, only the through small hole 311 is left to be ventilated, so that the flame of the gas appliance becomes a micro-fire, and an overflow protection function is realized, when the overflow phenomenon stops, for example, a user closes the gas appliance, so that the air pressure at two sides of the second piston 31 is gradually balanced under the action of the through small hole 311, the second piston 31 automatically resets under the action of the third spring 33, reopens the second valve port 32, and prepares for the next round of work, and substantial characteristics and progress are achieved.
In particular implementation, as described above, the deformable blocking piece 22 is installed at the end of the top rod 24, the inner side wall of the air inlet cavity 2 is provided with a first annular positioning step 201 and a second annular positioning step 202 which are sequentially far away from the bottom direction in the cavity of the air inlet cavity 2, the section of the top rod 24 between the convex ring part 241 and the deformable separation blade 22 is sleeved with an annular pressing block 27 for pressing the periphery of the deformable separation blade 22 to the first annular positioning step 201, the outer side wall of the annular pressing block 27 is matched with the inner side wall of the air inlet cavity 2 so that the annular pressing block 27 is fixed in the air inlet cavity 2, the first valve port 23 is arranged in the annular pressing block 27, a passage 271 is arranged in the annular pressing block 27 to facilitate the communication between the first valve port 23 and the connecting channel 4, and the air inlet nozzle 26 is positioned and mounted at the second annular positioning step 202.
As described above, the first annular positioning step 201 and the annular pressing block 27 are provided to facilitate the first valve port 23 to be disposed in the intake chamber 2 by assembling, and the second annular positioning step 202 is provided to facilitate the first spring 21, the deformable blocking piece 22, the annular pressing block 27, the ejector 24, and the second spring 25 to be installed in the intake chamber 2, and then the intake nozzle 26 is fixed to abut against the second spring 25.
As described above, in specific implementation, the deformable separation blade 22 is locked at the end of the top rod 24 by a pressing block, so that during specific assembly, one end of the top rod 24 can be inserted into the annular pressing block 27, then the deformable separation blade 22 is locked at the end of the top rod 24 by a pressing block, and then the three components are integrally inserted into the air inlet cavity 2 and the annular pressing block 27 is pressed inwards by force to press the periphery of the deformable separation blade 22 to the first annular positioning step 201.
As mentioned above, in practical implementation, the air outlet nozzle 34 is screwed with the air outlet cavity 3 so as to adjust the elastic coefficient of the third spring 33 by rotating the air outlet nozzle 34; or an annular seat 35 is fixed in the air outlet cavity 3, the second valve port 32 is arranged in the annular seat 35, and the air outlet nozzle 34 is screwed into the annular seat 35 so as to adjust the elastic coefficient of the third spring 33 by rotating the air outlet nozzle 34.
As described above, the air outlet nozzle 34 is installed by adopting threaded connection, which facilitates adjusting the elastic coefficient of the third spring 33 by rotating the air outlet nozzle 34, facilitates adjusting different overflow thresholds according to actual conditions when connecting with a gas appliance, and has good applicability and substantial characteristics and progress.
As described above, in practical implementation, the second piston 31 is provided with a plurality of protruding portions 312 protruding toward the bottom of the cavity of the air outlet cavity 3, and a gap passage 313 passing from the outer side of the second piston 31 to the through small hole 311 is formed between adjacent protruding portions 312.
As described above, the arrangement of the plurality of protrusions 312 and the arrangement of the gap channel 313 on the second piston 31 prevent the through small holes 311 from tightly adhering to the bottom of the cavity of the air outlet cavity 3, so that the second piston 31 is always tightly adhered to the bottom of the cavity of the air outlet cavity 3 due to negative pressure, and on the other hand, the arrangement is beneficial to increasing the wind receiving space of the second piston 31, and the situation that the air flow entering the air outlet cavity 3 from the connecting channel 4 cannot blow the second piston 31 to move towards the second valve port 32 is avoided.
As described above, in practical implementation, the outer side of the protruding portion 312 is provided with the gradually changing wall surface 3121 whose profile gradually decreases toward the center of the second piston 31, so as to facilitate better force application of the second piston 31, so that the air flow entering the air outlet cavity 3 from the connecting channel 4 can better blow the second piston 31 toward the second valve port 32.
As mentioned above, in practical implementation, the outer side wall of the connector 1 is provided with the high temperature protection ring 5 for rapidly dissolving when the temperature is too high, and the connector 1 is externally provided with the connection hand wheel 6 for abutting against the high temperature protection ring 5 to butt the air inlet nozzle 26 to the external connected piece.
As described above, the connecting body 1, the high temperature protection ring 5, and the connecting handwheel 6 are arranged such that the high temperature protection ring 5 is rapidly dissolved when the temperature is too high, and the connecting handwheel 6 cannot pass through the high temperature protection ring 5 to butt the air inlet nozzle 26 to the external connected piece, that is, the air inlet nozzle 26 is separated from the external connected piece.
As described above, in the specific implementation, the inner side wall of the connecting handwheel 6 is provided with the internal thread 61 for the threaded connection with the external connected piece.
As described above, the present application protects a fuel gas connection device with over-current protection and pressure stabilization functions, and all technical solutions having the same or similar structure to the present application are all shown to fall within the protection scope of the present application.
Claims (8)
1. A gas connecting device with super-flow protection and pressure stabilization functions is characterized by comprising a connecting body (1), wherein a gas inlet cavity (2), a gas outlet cavity (3) and a connecting channel (4) for connecting the gas inlet cavity (2) and the gas outlet cavity (3) are arranged in the connecting body (1), the gas inlet cavity (2) is sequentially provided with a first spring (21) from the bottom to the outside of the cavity, a deformable separation blade (22) for separating the gas inlet cavity (2) into an upper sub cavity and a lower sub cavity, a first valve port (23) for allowing gas to pass through, a top rod (24) with one end penetrating through the first valve port (23) and contacting with the deformable separation blade (22), a second spring (25) for elastically pressing the other end of the top rod (24), and a gas inlet nozzle (26) for pressing the other end of the second spring (25), the first spring (21) is used for elastically pressing the deformable separation blade (22) and/or the top rod (24), the periphery of the ejector rod (24) is provided with a convex ring part (241) which is convenient for the ejector rod (24) to gradually reduce the air flow space between the ejector rod and the first valve port (23) when moving towards the direction of the deformable blocking piece (22), the air outlet cavity (3) is sequentially provided with a second piston (31), a second valve port (32) which can be sealed by the second piston (31), a third spring (33) of which one end elastically presses the second piston (31) to reset the second valve port (32) to be opened, and an air outlet nozzle (34) used for pressing the other end of the third spring (33), a through small hole (311) used for communicating the second piston (31) up and down is arranged in the second piston (31), one end of the connecting channel (4) is communicated to the section of the air inlet cavity (2) between the deformable blocking piece (22) and the first valve port (23), The other end is communicated to the section of the air outlet cavity (3) between the bottom in the cavity of the air outlet cavity (3) and the second valve port (32).
2. The gas connecting device with the functions of over-flow protection and pressure stabilization according to claim 1, characterized in that the deformable separation blade (22) is installed at the end of the ejector rod (24), the inner side wall of the air inlet cavity (2) is provided with a first annular positioning step (201) and a second annular positioning step (202) which are sequentially far away from the inner bottom direction of the air inlet cavity (2), the section of the ejector rod (24) between the convex ring portion (241) and the deformable separation blade (22) is sleeved with an annular pressing block (27) for pressing the periphery of the deformable separation blade (22) onto the first annular positioning step (201), the outer side wall of the annular pressing block (27) is adapted to the inner side wall of the air inlet cavity (2) so as to fix the annular pressing block (27) in the air inlet cavity (2), the first valve port (23) is arranged in the annular pressing block (27), a passing channel (271) which is convenient for communicating the first valve port (23) with the connecting channel (4) is arranged in the annular pressing block (27), and the air inlet nozzle (26) is positioned and installed at the second annular positioning step (202).
3. The gas connecting device with the functions of over-flow protection and pressure stabilization as claimed in claim 2, characterized in that the deformable separation blade (22) is locked at the end of the ejector rod (24) through a pressing block.
4. A gas connection device with over-flow protection and pressure stabilization functions according to claim 1, characterized in that the gas outlet nozzle (34) is in threaded connection with the gas outlet cavity (3) so as to adjust the elastic coefficient of the third spring (33) by rotating the gas outlet nozzle (34); or an annular seat (35) is fixedly installed in the air outlet cavity (3), the second valve port (32) is arranged in the annular seat (35), and the air outlet nozzle (34) is connected into the annular seat (35) in a threaded mode so that the elastic coefficient of the third spring (33) can be adjusted by rotating the air outlet nozzle (34).
5. The gas connecting device with the functions of super-flow protection and pressure stabilization according to claim 1, characterized in that a plurality of convex parts (312) protruding towards the bottom direction in the cavity of the gas outlet cavity (3) are arranged on the second piston (31), and a clearance channel (313) passing from the outer side of the second piston (31) to the through small hole (311) is formed between the adjacent convex parts (312).
6. The gas connecting device with the functions of over-flow protection and pressure stabilization according to claim 5, characterized in that the outer side of the boss (312) is provided with a gradually-changed wall surface (3121) with gradually-reduced contour towards the center of the second piston (31).
7. The gas connecting device with the functions of over-flow protection and pressure stabilization according to any one of claims 1 to 6, characterized in that the outer side wall of the connecting body (1) is provided with a high-temperature protection ring (5) for rapidly dissolving when the temperature is too high, and the connecting body (1) is externally provided with a connecting hand wheel (6) for abutting against the high-temperature protection ring (5) so as to enable the air inlet nozzle (26) to be butted to an external connected piece.
8. The gas connecting device with the functions of over-flow protection and pressure stabilization as claimed in claim 7, characterized in that the inner side wall of the connecting hand wheel (6) is provided with an internal thread (61) for threaded connection with an external connected piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920441381.5U CN209892822U (en) | 2019-04-02 | 2019-04-02 | Gas connecting device with super current protection and steady voltage function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920441381.5U CN209892822U (en) | 2019-04-02 | 2019-04-02 | Gas connecting device with super current protection and steady voltage function |
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| Publication Number | Publication Date |
|---|---|
| CN209892822U true CN209892822U (en) | 2020-01-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920441381.5U Active CN209892822U (en) | 2019-04-02 | 2019-04-02 | Gas connecting device with super current protection and steady voltage function |
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| Country | Link |
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| CN (1) | CN209892822U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109812610A (en) * | 2019-04-02 | 2019-05-28 | 广东长青（集团）股份有限公司 | A kind of combustion gas attachment device with pressure stabilizing and super stream defencive function |
-
2019
- 2019-04-02 CN CN201920441381.5U patent/CN209892822U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109812610A (en) * | 2019-04-02 | 2019-05-28 | 广东长青（集团）股份有限公司 | A kind of combustion gas attachment device with pressure stabilizing and super stream defencive function |
| CN109812610B (en) * | 2019-04-02 | 2024-02-06 | 长青热能科技(中山)有限公司 | Gas connecting device with voltage stabilization and overcurrent protection functions |
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Effective date of registration: 20200826 Address after: 528400 No. 42, South 1, Industrial Avenue, Xiaolan Town, Guangdong, Zhongshan Patentee after: Changqing thermal energy technology (Zhongshan) Co., Ltd Address before: No. 42, No. 42, Xiaolan Town, Guangdong, Guangdong Patentee before: GUANGDONG CHANT Group Inc. |
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| TR01 | Transfer of patent right |