CN112002103A - Coal gas detects and prevents leaking alarm device - Google Patents
Coal gas detects and prevents leaking alarm device Download PDFInfo
- Publication number
- CN112002103A CN112002103A CN202010917018.3A CN202010917018A CN112002103A CN 112002103 A CN112002103 A CN 112002103A CN 202010917018 A CN202010917018 A CN 202010917018A CN 112002103 A CN112002103 A CN 112002103A
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- Prior art keywords
- cavity
- fixedly connected
- wall
- spring
- block
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/12—Alarms for ensuring the safety of persons responsive to undesired emission of substances, e.g. pollution alarms
- G08B21/16—Combustible gas alarms
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/002—Details of vessels or of the filling or discharging of vessels for vessels under pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Health & Medical Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses a gas detection leakage-proof alarm device, which comprises a box body, wherein a ventilating pipeline communicated with the outside is arranged in the box body, a fan and a fan shaft for ventilation are fixedly connected in the ventilation pipeline, a valve screwing mechanism for screwing the valve is arranged in the box body, the valve screwing mechanism comprises a placing cavity communicated with the outside, a gas tank is arranged in the placing cavity, a working cavity communicated with the placing cavity is arranged in the upper inner wall of the placing cavity, the upper end of the gas tank is fixedly connected with a valve, the inner wall of the working cavity is internally provided with a detection block for detecting gas, the device simple structure, convenient to use can the automated inspection gas bottle gas leakage condition to corresponding solution is made according to the gas leakage condition at different positions, the time of investigation is practiced thrift, thereby can make the reaction fast, reduces the probability that danger takes place, more has the security.
Description
Technical Field
The invention relates to the field of detectors, in particular to a gas detection leakage-proof alarm device.
Background
Gas is a necessity for cooking in daily life, but people always forget to close a valve after using the gas, and the gas leakage directly threatens the life safety of people, so once the gas leakage occurs, the reason for the gas leakage is firstly confirmed, if the valve is forgotten to close, the valve is closed, then ventilation is performed, but if the gas leakage occurs in a gas tank, the situation cannot be automatically solved, the rapid alarm is the optimal solution, and the correct solution can be performed only by seeking the assistance of professionals.
Disclosure of Invention
The invention aims to solve the technical problem of providing a gas detection leakage-proof alarm device, which overcomes the problems of gas leakage and the like.
The invention is realized by the following technical scheme.
The invention relates to a gas detection leakage-proof alarm device, which comprises a box body, wherein a ventilation pipeline communicated with the outside is arranged in the box body, a fan and a fan shaft for ventilation are fixedly connected in the ventilation pipeline, a valve screwing mechanism for screwing a valve is arranged in the box body, the valve screwing mechanism comprises a placing cavity communicated with the outside, a gas tank is arranged in the placing cavity, a working cavity communicated with the placing cavity is arranged in the upper inner wall of the placing cavity, the upper end of the gas tank is fixedly connected with the valve, a detection block for detecting gas is arranged in the inner wall of the working cavity, the right end of the detection block is fixedly connected with an alarm, a transmission cavity communicated with the working cavity is arranged in the upper inner wall of the working cavity, the upper inner wall of the transmission cavity is rotatably connected with a driven shaft, a pneumatic cavity communicated with the working cavity is arranged in the driven, the gas leakage detection device is characterized in that a clamping groove is formed in the extension rod, a pneumatic spring is fixedly connected to the upper end of the extension rod, the upper end of the pneumatic spring is fixedly connected with the upper inner wall of the pneumatic cavity, a positioning cavity with a right opening is formed in the inner wall of the pneumatic cavity, a positioning block is slidably connected into the positioning cavity, a positioning spring is fixedly connected to the left end of the positioning block, the left end of the positioning spring is fixedly connected with the left inner wall of the positioning cavity, a tightener is fixedly connected to the lower end of the driven shaft, a detection mechanism for detecting gas leakage is arranged in the box body, a ventilation mechanism for ventilating is arranged in the box body, and a transmission.
Further, the detection mechanism comprises a detection cavity which is positioned in the left inner wall of the working cavity and is communicated with the working cavity, a fixed interface is fixedly connected on the gas tank, a connecting pipe is fixedly connected with the left end of the fixed interface, a fixed interface is fixedly connected with the left end of the connecting pipe, a compression cavity with a downward opening is arranged in the upper inner wall of the detection cavity, a compression block is slidably connected in the compression cavity, a compression spring is fixedly connected at the upper end of the compression block, the compression spring is fixedly connected with the upper inner wall of the compression cavity, a pneumatic pipeline communicated with the pneumatic cavity is fixedly connected with the upper inner wall of the compression cavity, a channel communicated with the ventilation pipeline is fixedly connected with the lower inner wall of the detection cavity, a stretching cavity communicated with the channel is arranged in the box body, a stretching block is slidably connected in the stretching cavity, and a, the right end of the extension spring is fixedly connected with the right inner wall of the extension cavity.
Further, the transmission mechanism comprises a transmission motor fixedly connected with the upper inner wall of the transmission cavity, the transmission motor is in power connection with a driving shaft, a driving gear is fixedly connected to the driving shaft, the driven shaft is fixedly connected with a wire wheel and a driven gear, the driven gear is meshed with the driving gear, a pull rope is fixedly connected to the wire wheel, penetrates through the right inner wall of the transmission cavity and the right inner wall of the stretching cavity and is fixedly connected with the right end of the stretching block, the driven shaft is provided with a limit cavity with an upward opening, the upper inner wall of the transmission cavity is provided with a groove with a downward opening, the limiting block is connected in the limiting cavity in a sliding manner, the lower end of the limiting block is fixedly connected with a limiting spring and a long rope, the lower end of the limiting spring is fixedly connected with the lower inner wall of the limiting cavity, and the long rope penetrates through the lower inner wall of the limiting cavity and the left inner wall of the positioning cavity and is fixedly connected with the positioning block.
Further, the ventilation mechanism comprises a moving cavity which is positioned on the left inner wall of the placing cavity and is communicated with the placing cavity, a moving block is connected in the moving cavity in a sliding manner, a moving spring is fixedly connected to the left end of the moving block, the left end of the moving spring is fixedly connected with the left inner wall of the moving cavity, a positioning groove with a downward opening is arranged on the moving block, a reset cavity with an upward opening is arranged in the lower inner wall of the moving cavity, a trapezoidal block is connected in the reset cavity in a sliding manner, a reset spring is fixedly connected to the lower end of the trapezoidal block, the lower end of the reset spring is fixedly connected with the lower inner wall of the reset cavity, an electromagnet is fixedly connected to the lower inner wall of the reset cavity, an external connecting pipe communicated with the outside is fixedly connected to the rear inner wall of the ventilation pipeline, the upper end of the extension block is fixedly connected with an extension spring and a thin rope, the upper end of the extension spring is fixedly connected with the upper inner wall of the extension cavity, and the thin rope penetrates through the upper inner wall of the extension block and the left inner wall of the moving cavity to be fixedly connected with the moving block.
Furthermore, the elastic force of the extension spring is smaller than that of the movable spring, and the elastic force of the positioning spring is larger than that of the limiting spring.
The invention has the beneficial effects that: the device simple structure, convenient to use can the automated inspection gas bottle gas leakage condition to corresponding solution is made according to the gas leakage condition at different positions, the time of investigation is practiced thrift, thereby can make the reaction fast, reduces the probability that danger takes place, more has the security.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic structural diagram at A-A in FIG. 1 according to an embodiment of the present invention;
FIG. 3 is an enlarged schematic view of the structure at B in FIG. 1 according to an embodiment of the present invention;
FIG. 4 is an enlarged view of the structure at C in FIG. 1 according to an embodiment of the present invention.
Detailed Description
The invention will now be described in detail with reference to fig. 1-4, wherein for ease of description the orientations described hereinafter are now defined as follows: the lower left, right, front and rear directions described below correspond to the upper, lower left, right, front and rear directions in the projection relation of fig. 1 itself.
The gas detection leakage-proof alarm device described with reference to fig. 1-4 comprises a box body 11, a ventilation pipeline 12 communicated with the outside is arranged in the box body 11, a fan 13 and a fan shaft 14 for ventilation are fixedly connected in the ventilation pipeline 12, a valve screwing mechanism 68 for screwing a valve is arranged in the box body 11, the valve screwing mechanism 68 comprises a placing cavity 37 communicated with the outside, a gas tank 36 is arranged in the placing cavity 37, a working cavity 34 communicated with the placing cavity 37 is arranged in the upper inner wall of the placing cavity 37, a valve 35 is fixedly connected at the upper end of the gas tank 36, a detection block 32 for detecting gas is arranged in the inner wall of the working cavity 34, an alarm 33 is fixedly connected at the right end of the detection block 32, a transmission cavity 28 communicated with the working cavity 34 is arranged in the upper inner wall of the working cavity 34, and a driven shaft 43 is rotatably connected to the upper inner wall, a pneumatic cavity 49 communicated with the working cavity 34 is arranged in the driven shaft 43, an extension rod 53 is connected in the pneumatic cavity 49 in a sliding way, a clamping groove 52 is arranged on the extension rod 53, the upper end of the extension rod 53 is fixedly connected with a pneumatic spring 50, the upper end of the pneumatic spring 50 is fixedly connected with the upper inner wall of the pneumatic cavity 49, a positioning cavity 56 with a right opening is arranged in the inner wall of the pneumatic cavity 49, a positioning block 55 is connected in the positioning cavity 56 in a sliding manner, a positioning spring 57 is fixedly connected at the left end of the positioning block 55, the left end of the positioning spring 57 is fixedly connected with the left inner wall of the positioning cavity 56, the lower end of the driven shaft 43 is fixedly connected with a tightener 31, a detection mechanism 67 for detecting gas leakage is arranged in the box body 11, a ventilation mechanism 66 for ventilation is arranged in the box body 11, and a transmission mechanism 69 for transmission is arranged in the transmission cavity 28.
Beneficially, the detection mechanism 67 includes a detection cavity 17 located in the left inner wall of the working cavity 34 and communicated with the working cavity 34, a fixed interface 15 is fixedly connected to the gas tank 36, a connecting pipe 16 is fixedly connected to the left end of the fixed interface 15, a fixed interface 15 is fixedly connected to the left end of the connecting pipe 16, a compression cavity 19 with a downward opening is arranged in the upper inner wall of the detection cavity 17, a compression block 18 is slidably connected to the compression cavity 19, a compression spring 20 is fixedly connected to the upper end of the compression block 18, the compression spring 20 is fixedly connected to the upper inner wall of the compression cavity 19, a pneumatic pipeline 21 communicated with the pneumatic cavity 49 is fixedly connected to the upper inner wall of the compression cavity 19, a channel 23 communicated with the ventilation pipeline 12 is fixedly connected to the lower inner wall of the detection cavity 17, a stretching cavity 24 communicated with the channel 23 is arranged in the box body 11, and a stretching block 22 is, the right end of the stretching block 22 is fixedly connected with a stretching spring 25, and the right end of the stretching spring 25 is fixedly connected with the right inner wall of the stretching cavity 24.
Beneficially, the transmission mechanism 69 comprises a transmission motor 30 fixedly connected to the upper inner wall of the transmission cavity 28, the transmission motor 30 is in power connection with a driving shaft 29, the driving shaft 29 is fixedly connected with a driving gear 27, the driven shaft 43 is fixedly connected with a wire wheel 42 and a driven gear 51, the driven gear 51 is engaged with the driving gear 27, the wire wheel 42 is fixedly connected with a pull rope 26, the pull rope 26 penetrates through the right inner wall of the transmission cavity 28 and the right inner wall of the stretching cavity 24 to be fixedly connected with the right end of the stretching block 22, the driven shaft 43 is provided with a limiting cavity 44 with an upward opening, the upper inner wall of the transmission cavity 28 is provided with a groove 46 with a downward opening, the limiting cavity 44 is slidably connected with the limiting block 47, the lower end of the limiting block 47 is fixedly connected with a limiting spring 45 and a long rope 48, the lower end of the limiting spring 45 is, the long rope 48 penetrates through the lower inner wall of the limiting cavity 44 and the left inner wall of the positioning cavity 56 to be fixedly connected with the positioning block 55.
Beneficially, the ventilation mechanism 66 includes a moving cavity 62 located on the left inner wall of the placing cavity 37 and communicated with the placing cavity 37, a moving block 64 is slidably connected in the moving cavity 62, a moving spring 63 is fixedly connected to the left end of the moving block 64, the left end of the moving spring 63 is fixedly connected with the left inner wall of the moving cavity 62, a positioning groove 65 with a downward opening is arranged on the moving block 64, a reset cavity 59 with an upward opening is arranged in the lower inner wall of the moving cavity 62, a trapezoidal block 61 is slidably connected in the reset cavity 59, a reset spring 60 is fixedly connected to the lower end of the trapezoidal block 61, the lower end of the reset spring 60 is fixedly connected with the lower inner wall of the reset cavity 59, an electromagnet 58 is fixedly connected to the lower inner wall of the reset cavity 59, an external connection pipe 70 communicated with the outside is fixedly connected to the rear inner wall of the ventilation duct 12, an extension block 38 is slidably connected in the extension cavity 39, an extension spring 40 and a string 41 are fixedly connected to the upper end of the extension block 38, the upper end of the extension spring 40 is fixedly connected to the upper inner wall of the extension cavity 39, and the string 41 penetrates through the upper inner wall of the extension block 38 and the left inner wall of the moving cavity 62 to be fixedly connected to the moving block 64.
Advantageously, the elastic force of the extension spring 40 is smaller than that of the moving spring 63, and the elastic force of the positioning spring 57 is larger than that of the stopper spring 45.
In the initial state, the extension spring 40 and the positioning spring 57 are in a compressed state.
The using method comprises the following steps: under normal conditions, the fan shaft 14 drives the fan 13 to rotate, thereby ventilating the outside, if the connecting pipe 16 is damaged, and gas leaks, the gas pushes the compression block 18 to move upwards, thereby pushing the extension bar 53 to move downwards, when the extension bar 53 moves to the lowest end, the positioning block 55 enters the clamping groove 52 rightwards under the action of the positioning spring 57, thereby tensioning the long rope 48, thereby driving the limiting block 47 to move downwards to be separated from the groove 46, at the same time, the transmission motor 30 drives the driving shaft 29 to rotate, thereby driving the driving gear 27 to rotate, thereby driving the driven gear 51 to rotate, thereby driving the driven shaft 43 to rotate, thereby driving the extension bar 53 to rotate, thereby driving the tightener 31 to rotate, thereby screwing the valve 35, the rotation of the driven shaft 43 drives the reel 42 to rotate, thereby tightening the pull rope 26, thereby driving the tension block 22 to move rightwards, thereby communicating the detection cavity 17 with the ventilation pipe 12, the compression block 18 is reset under the action of the compression spring 20, all the components are reset, and the gas leaked in the detection cavity 17 is led to the outside through the action of the fan 13 to ventilate and disperse odor;
when the gas tank 36 leaks instead of the connecting pipe 16, the detection block 32 detects that the concentration of gas in the working chamber 34 rises, so that an alarm is given through the alarm 33, the movable block 64 is pushed to move leftwards along with the increase of the pressure in the placing chamber 37, when the movable block 64 moves to the leftmost end, the trapezoidal block 61 enters the positioning groove 65, so that the position in the working chamber is fixed, the placing chamber 37 is communicated with the ventilating pipeline 12 for ventilation, the string 41 is loosened, the extension block 38 moves downwards under the action of the extension spring 40 to seal the outer pipe 70 and the ventilating pipeline 12, so that the fan 13 and the fan shaft 14 only diffuse and ventilate air in the placing chamber 37 and the working chamber 34, and after subsequent treatment, all the components reset along with the air tank, so that the operation is completed.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (5)
1. The utility model provides a coal gas detects prevents leaking alarm device, includes the box, its characterized in that: the gas-operated valve is characterized in that an air pipeline communicated with the outside is arranged in the box body, a fan and a fan shaft for ventilation are fixedly connected in the air pipeline, a valve screwing mechanism for screwing a valve is arranged in the box body, the valve screwing mechanism comprises a placing cavity communicated with the outside, a gas tank is arranged in the placing cavity, a working cavity communicated with the placing cavity is arranged in the upper inner wall of the placing cavity, the upper end of the gas tank is fixedly connected with the valve, a detection block for detecting gas is arranged in the inner wall of the working cavity, the right end of the detection block is fixedly connected with an alarm, a transmission cavity communicated with the working cavity is arranged in the upper inner wall of the working cavity, the upper inner wall of the transmission cavity is rotatably connected with a driven shaft, a pneumatic cavity communicated with the working cavity is arranged in the driven shaft, an extension bar is slidably connected in the pneumatic cavity, the gas spring upper end with inner wall fixed connection on the pneumatic chamber, the pneumatic chamber is equipped with the right location chamber of opening in doing the inner wall, sliding connection has the locating piece in the location chamber, locating piece left end fixedly connected with positioning spring, the positioning spring left end with location chamber left side inner wall fixed connection, driven shaft lower extreme fixed connection has the ware of screwing, be equipped with the detection mechanism who is used for detecting gas leakage in the box, be equipped with the ventilation mechanism who is used for the ventilation in the box, be equipped with the drive mechanism who is used for the transmission in the drive chamber.
2. A gas detection leak prevention alarm apparatus as defined in claim 1 wherein: the detection mechanism comprises a detection cavity which is positioned in the left inner wall of the working cavity and is communicated with the working cavity, the gas tank is fixedly connected with a fixed interface, the left end of the fixed interface is fixedly connected with a connecting pipe, the left end of the connecting pipe is fixedly connected with a fixed interface, a compression cavity with a downward opening is arranged in the upper inner wall of the detection cavity, a compression block is connected in the compression cavity in a sliding way, a compression spring is fixedly connected at the upper end of the compression block, the compression spring is fixedly connected with the upper inner wall of the compression cavity, the upper inner wall of the compression cavity is fixedly connected with a pneumatic pipeline communicated with the pneumatic cavity, the lower inner wall of the detection cavity is fixedly connected with a channel communicated with the ventilating duct, a stretching cavity communicated with the channel is arranged in the box body, the stretching cavity is internally and slidably connected with a stretching block, the right end of the stretching block is fixedly connected with a stretching spring, and the right end of the stretching spring is fixedly connected with the right inner wall of the stretching cavity.
3. A gas detection leak prevention alarm apparatus as defined in claim 1 wherein: the transmission mechanism comprises a transmission motor fixedly connected with the upper inner wall of the transmission cavity, the transmission motor is in power connection with a driving shaft, the driving shaft is fixedly connected with a driving gear, the driven shaft is fixedly connected with a wire wheel and a driven gear, the driven gear is meshed with the driving gear, a pull rope is fixedly connected to the wire wheel, the pull rope penetrates through the right inner wall of the transmission cavity and the right inner wall of the stretching cavity to be fixedly connected with the right end of the stretching block, the driven shaft is provided with a limit cavity with an upward opening, the upper inner wall of the transmission cavity is provided with a groove with a downward opening, the limiting block is connected in the limiting cavity in a sliding manner, the lower end of the limiting block is fixedly connected with a limiting spring and a long rope, the lower end of the limiting spring is fixedly connected with the lower inner wall of the limiting cavity, and the long rope penetrates through the lower inner wall of the limiting cavity and the left inner wall of the positioning cavity and is fixedly connected with the positioning block.
4. A gas detection leak prevention alarm apparatus as defined in claim 1 wherein: the ventilation mechanism comprises a moving cavity which is positioned on the left inner wall of the placing cavity and is communicated with the placing cavity, a moving block is connected in the moving cavity in a sliding manner, a moving spring is fixedly connected to the left end of the moving block, the left end of the moving spring is fixedly connected with the left inner wall of the moving cavity, a positioning groove with a downward opening is arranged on the moving block, a reset cavity with an upward opening is arranged in the lower inner wall of the moving cavity, a trapezoidal block is connected in the reset cavity in a sliding manner, a reset spring is fixedly connected to the lower end of the trapezoidal block, the lower end of the reset spring is fixedly connected with the lower inner wall of the reset cavity, an electromagnet is fixedly connected to the lower inner wall of the reset cavity, an external connecting pipe communicated with the outside is fixedly connected to the rear inner wall of the ventilation pipeline, an extending cavity with a downward opening is arranged in, the upper end of the extension spring is fixedly connected with the upper inner wall of the extension cavity, and the thin rope penetrates through the upper inner wall of the extension block and the left inner wall of the moving cavity to be fixedly connected with the moving block.
5. A gas detection leak prevention alarm apparatus as defined in claim 1 wherein: the elasticity of the extension spring is smaller than that of the movable spring, and the elasticity of the positioning spring is larger than that of the limiting spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010917018.3A CN112002103A (en) | 2020-09-03 | 2020-09-03 | Coal gas detects and prevents leaking alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010917018.3A CN112002103A (en) | 2020-09-03 | 2020-09-03 | Coal gas detects and prevents leaking alarm device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112002103A true CN112002103A (en) | 2020-11-27 |
Family
ID=73465402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010917018.3A Withdrawn CN112002103A (en) | 2020-09-03 | 2020-09-03 | Coal gas detects and prevents leaking alarm device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112002103A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117091075A (en) * | 2023-10-20 | 2023-11-21 | 无锡恒大电子科技有限公司 | General air storage device of air supply system |
-
2020
- 2020-09-03 CN CN202010917018.3A patent/CN112002103A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117091075A (en) * | 2023-10-20 | 2023-11-21 | 无锡恒大电子科技有限公司 | General air storage device of air supply system |
| CN117091075B (en) * | 2023-10-20 | 2024-01-02 | 无锡恒大电子科技有限公司 | General air storage device of air supply system |
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Application publication date: 20201127 |
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| WW01 | Invention patent application withdrawn after publication |