CN109733929B - Pneumatic air pump - Google Patents
Pneumatic air pump Download PDFInfo
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- CN109733929B CN109733929B CN201811437323.1A CN201811437323A CN109733929B CN 109733929 B CN109733929 B CN 109733929B CN 201811437323 A CN201811437323 A CN 201811437323A CN 109733929 B CN109733929 B CN 109733929B
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Abstract
The invention discloses a pneumatic air pump, which comprises an air compressor and a vacuum valve which are connected, wherein one side of the vacuum valve is respectively provided with a first air inlet and a second air inlet, and the other side of the vacuum valve is respectively provided with an air blowing port and an air suction port; the first air inlet and the second air inlet are both connected with an air compressor; a first channel structure, a second channel structure and an air suction pipeline are arranged in the vacuum valve; the first channel structure connects the first air inlet with the air blowing port; the second air inlet and the air suction pipeline are connected with the second channel structure; the air suction pipeline and the second channel structure are arranged at an acute angle; and one end of the air suction pipeline, which is far away from the second channel structure, is connected with the air suction port. The invention directly uses the common air compressor to be connected with the vacuum valve, and carries out air blowing and air suction on the paper conveying feeder, thereby greatly reducing the production cost.
Description
Technical Field
The invention relates to the technical field of vacuum valves, in particular to a pneumatic air pump.
Background
The cigarette packet printing industry has large product batch, and paper is conveyed by using the paper conveying feeder; in the operation process, the paper needs to be blown firstly to loosen the stacked paper, when the paper is transported on the paper conveying flight, the air suction nozzle of the paper conveying flight is required to suck air to enable the paper to be adsorbed on the paper conveying flight to move along with the paper conveying flight, and a device for sucking and blowing air simultaneously to the paper conveying flight is absent in the prior art.
Accordingly, the prior art is yet to be improved and developed.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a pneumatic air pump, aiming at using one pneumatic air pump to simultaneously blow and suck the paper feeding flight.
The technical scheme adopted by the invention for solving the technical problem is as follows:
a pneumatic air pump comprises an air compressor and a vacuum valve which are connected, wherein a first air inlet and a second air inlet are respectively arranged on one side of the vacuum valve, and an air blowing port and an air suction port are respectively arranged on the other side of the vacuum valve; the first air inlet and the second air inlet both supply air through an air compressor; a first channel structure, a second channel structure and an air suction pipeline are arranged in the vacuum valve; the first channel structure connects the first air inlet with the air blowing port; the second air inlet and the air suction pipeline are connected with the second channel structure; the air suction pipeline and the second channel structure are arranged at an acute angle; and one end of the air suction pipeline, which is far away from the second channel structure, is connected with the air suction port.
The pneumatic air pump further comprises a first regulating valve and a first electromagnetic valve which are arranged between the air compressor and the first air inlet and are sequentially connected, the first regulating valve is connected with the air compressor, and the first electromagnetic valve is connected with the first air inlet.
The pneumatic air pump further comprises a first air pressure gauge, and the first air pressure gauge is connected with the first adjusting valve.
The air blowing port and the air suction port are both connected with the paper feeding flight reach, and the first electromagnetic valve is connected with the paper feeding flight reach through the first air flow sensor.
The pneumatic air pump further comprises a second regulating valve and a second electromagnetic valve, wherein the second regulating valve and the second electromagnetic valve are arranged between the air compressor and the second air inlet and are sequentially connected, the second regulating valve is connected with the air compressor, and the second electromagnetic valve is connected with the second air inlet.
The pneumatic air pump further comprises a second air pressure gauge, and the second air pressure gauge is connected with the second adjusting valve.
The pneumatic air pump is characterized in that a third barometer is arranged on the air suction pipeline.
The pneumatic air pump, wherein the first channel structure comprises a first pipe and a ball valve; two ends of the first pipeline are respectively connected with the first air inlet and the air blowing port; the ball valve is arranged on the first pipeline.
The second channel structure comprises a flow divider connected with the second air inlet and a plurality of air outlet pipes, the flow divider is provided with a plurality of outlets, and the air outlet pipes are connected with the outlets; the air suction pipeline comprises suction pipes which correspond to the air outlet pipes one by one; the suction pipe is connected with the air outlet pipe and is arranged at an acute angle relative to the air outlet pipe.
The pneumatic air pump is characterized in that an outlet of the air outlet pipe, which is far away from one end of the flow divider, is connected with a silencer, and the joint of the suction pipe and the air outlet pipe is located between the outlet and the silencer.
Has the advantages that: in the invention, the pneumatic air pump can realize air blowing and air suction simultaneously by being connected with an air compressor, thereby reducing the production cost.
Drawings
FIG. 1 is a schematic view of the appearance of a vacuum valve according to the present invention;
FIG. 2 is a schematic view of the overall structure of the pneumatic air pump according to the present invention;
FIG. 3 is a reference view showing a state of use in which the inclined tubular body and the receiving tubular body are connected to the sealing device when the sealing sheet of the present invention is closed;
FIG. 4 is a reference view showing a state of use in which the inclined tubular body and the receiving tubular body are connected to the sealing device when the sealing sheet of the present invention is opened;
FIG. 5 is a perspective view of the sealing device of the present invention with the sealing flap closed;
FIG. 6 is a front view of the sealing device of the present invention with the sealing flap closed;
figure 7 is a perspective view of the sealing device of the present invention with the sealing panel open.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Please refer to FIG. 1-FIG. 7. The invention provides a pneumatic air pump, as shown in fig. 1 and fig. 2, which comprises an air compressor 200 and a vacuum valve 100 which are connected, wherein one side of the vacuum valve 100 is respectively provided with a first air inlet 101 and a second air inlet 102, and the other side is respectively provided with an air blowing port 103 and an air suction port 104; the first air inlet 101 and the second air inlet 102 are both connected with an air compressor 200; a first channel structure 300, a second channel structure 400 and an air suction pipeline 500 are arranged in the vacuum valve 100; the first channel structure 300 connects the first air inlet 101 with the air blowing port 103; the second air inlet 102 and the air suction duct 500 are both connected with the second channel structure 400; the air suction duct 500 is disposed at an acute angle with respect to the second channel structure 400; an end of the air suction duct 500 remote from the second passage structure 400 is connected to the air suction port 104.
In a workshop of the cigarette packet printing industry, the air compressor 200 is a common device, and the common air compressor 200 is directly connected with the vacuum valve 100, so that air blowing and air suction are performed on the paper conveying device 600, and the production cost is greatly reduced.
The air blowing port 103 is connected with an air blowing nozzle of the paper conveying feeder 600, and the air suction port 104 is connected with an air suction nozzle of the paper conveying feeder 600; the air compressor 200 is disposed at a side facing the first air inlet 101 and the second air inlet 102 so that the air compressor 200 can simultaneously supply air to the first air inlet 101 and the second air inlet 102; the first channel structure 300 directly connects the first air inlet 101 with the air blowing opening 103, so that when the air compressor 200 supplies air to the first air inlet 101, air flow can be blown out from the air blowing opening 103 through the first channel structure 300, and thus air is blown to an air blowing nozzle of the paper feeder 600; because the air suction pipe 500 and the second channel structure 400 are arranged at an acute angle, when the air compressor 200 supplies air to the second air inlet 102, the air flow flows forward along the second channel structure 400 after entering the vacuum valve 100, and negative pressure is generated in the air suction pipe 500, so that the air suction pipe 500 generates an air suction effect, sucks air from the air suction nozzle of the paper conveying feeder 600, and adsorbs the paper on the paper conveying feeder 600.
Therefore, in the invention, the pneumatic air pump can simultaneously realize air blowing and air suction by connecting one air compressor 200, thereby reducing the production cost and the noise and avoiding the phenomenon of adverse effect on the health of workers.
Because the weight of the paper is different in the production process, when the paper conveying device 600 is used for conveying the paper with different weight, the blowing and suction force is different, preferably, the pneumatic air pump further comprises a first adjusting valve 1 and a first electromagnetic valve 2 which are arranged between the air compressor 200 and the first air inlet 101 and are sequentially connected, the first adjusting valve 1 is connected with the air compressor 200, and the first electromagnetic valve 2 is connected with the first air inlet 101.
The first electromagnetic valve 2 is used for controlling the on-off of the air supply of the air compressor 200 to the first air inlet 101, and the first adjusting valve 1 is used for connecting the air compressor 200 with the first electromagnetic valve 2 and adjusting the air pressure of the air supply from the air compressor 200 to the first air inlet 101. When the paper conveying device 600 needs to be blown, the air compressor 200 is started, the first electromagnetic valve 2 is started, and at the moment, the air flow supplied from the air compressor 200 can flow into the first air inlet 101 in total; when the first adjusting valve 1 is adjusted, the air pressure of the air flow supplied from the air compressor 200 can be adjusted, the first adjusting valve 1 is closed to reduce the air pressure supplied to the first air inlet 101, and the first adjusting valve 1 is opened to increase the air pressure supplied to the first air inlet 101.
Further, pneumatic air pump still includes first barometer 3, first barometer 3 with first governing valve 1 is connected, through first barometer 3 can acquire and pass through at present the atmospheric pressure size of first governing valve 1, the staff is through reading the atmospheric pressure size of first barometer 3 can carry out accurate control to blowing to the atmospheric pressure size that paper feed flies to reach 600 air currents.
The first electromagnetic valve 2 is provided with a first airflow sensor 4, the first airflow sensor 4 is connected with the paper conveying flying object 600, and the first electromagnetic valve 2 can sense the opening and closing of the paper conveying flying object 600 according to the first airflow sensor 4, so that the first electromagnetic valve 2 can be synchronously opened along with the opening of the paper conveying flying object 600 and synchronously closed along with the closing of the paper conveying flying object 600.
The pneumatic air pump further comprises a second regulating valve 5 and a second electromagnetic valve 6 which are arranged between the air compressor 200 and the second air inlet 102 and are sequentially connected, the second regulating valve 5 is connected with the air compressor 200, and the second electromagnetic valve 6 is connected with the second air inlet 102. The second regulating valve 5 is disposed between the air compressor 200 and the second solenoid valve 6, and the second solenoid valve 6 is disposed between the second regulating valve 5 and the second air inlet 102.
The second electromagnetic valve 6 is used for controlling the on-off of the air supply from the air compressor 200 to the second air inlet 102, and the second regulating valve 5 connects the air compressor 200 with the second electromagnetic valve 6 and is used for regulating the air pressure of the air supply from the air compressor 200 to the second air inlet 102. When the paper conveying device 600 needs to be sucked, the air compressor 200 is started, the second electromagnetic valve 6 is started, and at the moment, the air flow supplied from the air compressor 200 can flow into the second air inlet 102 in total; when the second adjusting valve 5 is adjusted, the air pressure of the air flow supplied from the air compressor 200 can be adjusted, and when the second adjusting valve 5 is closed, the air pressure for supplying air to the second air inlet 102 is reduced, and the suction force for the paper on the paper conveying device 600 is reduced; when the second regulating valve 5 is opened, the air pressure for supplying air to the second air inlet 102 is increased, and the suction force for feeding paper to the 600-up paper is increased.
When only the vacuum valve 100 is needed to blow air outwards, the second electromagnetic valve 6 is closed, the first electromagnetic valve 2 is opened, and the air blowing pressure is adjusted through the first adjusting valve 1; when only the vacuum valve 100 is required to suck air from the outside, the first electromagnetic valve 2 is closed, the second electromagnetic valve 6 is opened, and the air suction pressure is adjusted through the second adjusting valve 5; when the vacuum valve 100 is required to blow air to the outside and the vacuum valve 100 is required to suck air from the outside, the first electromagnetic valve 2 and the second electromagnetic valve 6 are synchronously opened, the air pressure of the blown air is adjusted through the first adjusting valve 1, and the air pressure of the sucked air is adjusted through the second adjusting valve 5.
The second electromagnetic valve 6 is provided with a second airflow sensor 8, the second airflow sensor 8 is connected with the paper feeding feeder 600, and the second electromagnetic valve 6 can sense the opening and closing of the paper feeding feeder 600 according to the second airflow sensor 8, so that the second electromagnetic valve 6 can be synchronously opened along with the opening of the paper feeding feeder 600 and synchronously closed along with the closing of the paper feeding feeder 600.
Pneumatic air pump still includes second barometer 7, second barometer 7 with second governing valve 5 is connected, through second barometer 7 can acquire and pass through at present the atmospheric pressure size of second governing valve 5, and the staff is through reading the reading of second barometer 7 can carry out accurate control to flying from defeated paper to 600 inspiratory atmospheric pressure size.
The first channel structure 300 comprises a first pipe 301 and a ball valve 302; two ends of the first pipeline 301 are respectively connected with the first air inlet 101 and the air blowing port 103; the ball valve 302 is disposed on the first pipe 301. The ball valve 302 and the first adjusting valve 1 cooperatively control the blowing air pressure from the end close to the first air inlet 101 and the end close to the blowing port 103, so that the adjustment of the blowing air pressure is more accurate and reliable.
The second channel structure 400 comprises a flow divider 401 connected to the second inlet 102 and a plurality of outlet pipes 402, the flow divider 401 has a plurality of outlets, and the outlet pipes 402 are connected to the outlets; the air suction pipe 500 includes suction pipes 501 corresponding to the air outlet pipes 402 one to one; the suction pipe 501 is connected to the outlet pipe 402 and is disposed at an acute angle with respect to the outlet pipe 402.
The flow divider 401 comprises a pipe body and a plurality of outlets which are arranged on the pipe body in parallel; the pipe body is connected to the second gas inlet 102, and the outlets of the pipe body correspond to the gas outlet pipes 402 one by one, so that the gas flow entering the vacuum valve 100 from the second gas inlet 102 is divided into a plurality of gas outlet pipes 402. The air suction pipe 500 comprises a plurality of suction pipes 501, the suction pipes 501 are connected with the air outlet pipe 402 in a one-to-one correspondence manner, one end of each suction pipe 501, which is far away from the air outlet pipe 402, is connected with the air suction port 104, an acute angle is formed between one end of each suction pipe 501, which is connected with the air outlet pipe 402, and when air flow moves forwards along the air outlet pipe 402, negative pressure is generated in each suction pipe 501, so that the suction pipes 501 can suck air.
Further, a third air pressure gauge 9 is arranged on the air suction pipeline 500, and the air pressure of air sucked from the paper conveying device 600 is cooperatively controlled through the second air pressure gauge 7 and the third air pressure gauge 9; the third air pressure gauge 9 is positioned between the air suction opening 104 and the paper feeding flight 600.
The muffler 10 is connected to the outlet of the end, away from the flow divider 401, of the outlet pipe 402, and the connection between the suction pipe 501 and the outlet pipe 402 is located between the outlet and the muffler 10. The muffler 10 comprises a silencing pipe and a silencing hole arranged on the silencing pipe; the air flow enters the muffler pipe along the outlet pipe 402 and is blown out of the muffler holes.
Preferably, as shown in fig. 3-7, the suction pipe 501 comprises an inclined pipe 502 connected to the air outlet pipe 402 and a receiving pipe 503 connecting the inclined pipe 502 to the air inlet 104; the angled tube body 502 is angled at 45 ° relative to the outlet tube 402; the receiving pipe body 503 has an end portion having an outer diameter smaller than that of the tilting pipe body 502 to be inserted into the tilting pipe body 502. Preferably, a sealing device 504 is arranged in the inclined tube body 502, and when the suction pipe 501 does not suck air, the sealing device 504 is used for sealing the opening of the receiving tube body 503 in the inclined tube body 502; when the suction pipe 501 sucks air, the sealing device 504 opens the opening of the receiving pipe 503 in the inclined pipe 502 to allow air flow. When the air flow is introduced into the air outlet pipe 402, the sealing device 504 helps to generate and control the negative pressure in the suction pipe 501, so as to enhance the suction pressure of the suction pipe 501 and enhance the suction force of the suction pipe 501 on the paper conveying flying.
The inclined tube 502 is detachably connected to the receiving tube 503, and the sealing device 504 can seal the connection between the inclined tube 502 and the receiving tube 503 to prevent air leakage; meanwhile, after the inclined tube body 502 and the receiving tube body 503 are disassembled, the sealing device 504 is convenient to disassemble and replace.
The sealing device 504 comprises a sealing ring 505 and a sealing sheet 506, wherein both ends of the sealing ring 505 are open; the sealing ring 505 is located at the inclined pipe body 502, and the sealing ring 505 is sleeved on the receiving pipe body 503; the sealing sheet 506 is positioned at one end of the sealing ring 505 and is opened, one end of the sealing sheet 506 is connected with the sealing ring 505, and the sealing sheet 506 has elasticity; when the air compressor 200 is started and negative pressure is formed in the suction pipe 501, the sealing sheet 506 is elastically deformed, and one end of the sealing sheet 506, which is connected with the sealing ring 505, is bent towards the receiving pipe body 503, as shown in fig. 4 and 7, so that the suction pipe 501 is opened and air flow is circulated; when the air compressor 200 stops, the sealing sheet 506 is elastically deformed again and seals the opening of the receiving pipe body 503 in the inclined pipe body 502, as shown in fig. 3, 5 and 6.
When air flows through the air outlet pipe 402, negative pressure is formed in the suction pipe 501, and the sealing ring 11 is opened under the action of the negative pressure, so that the suction pipe 501 generates a suction effect.
In summary, the present invention provides a pneumatic air pump, which includes an air compressor and a vacuum valve connected to each other, wherein one side of the vacuum valve is respectively provided with a first air inlet and a second air inlet, and the other side of the vacuum valve is respectively provided with an air blowing port and an air suction port; the first air inlet and the second air inlet are both connected with an air compressor; a first channel structure, a second channel structure and an air suction pipeline are arranged in the vacuum valve; the first channel structure connects the first air inlet with the air blowing port; the second air inlet and the air suction pipeline are connected with the second channel structure; the air suction pipeline and the second channel structure are arranged at an acute angle; and one end of the air suction pipeline, which is far away from the second channel structure, is connected with the air suction port. The pneumatic air pump can simultaneously realize air blowing and air suction by being connected with an air compressor, thereby reducing the production cost and the noise and avoiding the phenomenon of adverse effect on the health of workers.
It is to be understood that the invention is not limited to the examples described above, but that modifications and variations may be effected thereto by those of ordinary skill in the art in light of the foregoing description, and that all such modifications and variations are intended to be within the scope of the invention as defined by the appended claims.
Claims (9)
1. A pneumatic air pump comprises an air compressor and a vacuum valve which are connected, and is characterized in that one side of the vacuum valve is provided with a first air inlet and a second air inlet respectively, and the other side of the vacuum valve is provided with an air blowing port and an air suction port respectively; the first air inlet and the second air inlet both supply air through an air compressor; a first channel structure, a second channel structure and an air suction pipeline are arranged in the vacuum valve; the first channel structure connects the first air inlet with the air blowing port; the second air inlet and the air suction pipeline are connected with the second channel structure; the air suction pipeline and the second channel structure are arranged at an acute angle; one end of the air suction pipeline, which is far away from the second channel structure, is connected with the air suction port; the second channel structure comprises a flow divider connected with the second air inlet and a plurality of air outlet pipes, the flow divider is provided with a plurality of outlets, and the air outlet pipes are connected with the outlets; the air suction pipeline comprises suction pipes which correspond to the air outlet pipes one by one; the suction pipe is connected with the air outlet pipe and is arranged at an acute angle relative to the air outlet pipe; the suction pipe comprises an inclined pipe body connected with the air outlet pipe and a bearing pipe body connecting the inclined pipe body with the air suction port; the end part of the receiving pipe body is positioned in the inclined pipe body, and a sealing device for sealing the receiving pipe body is arranged in the inclined pipe body; when the suction pipe inhales, the sealing device is opened.
2. The pneumatic air pump according to claim 1, further comprising a first regulating valve and a first solenoid valve provided between the air compressor and the first air inlet and connected in series, the first regulating valve being connected to the air compressor, and the first solenoid valve being connected to the first air inlet.
3. The pneumatic air pump of claim 2, further comprising a first air pressure gauge connected to the first regulating valve.
4. The pneumatic air pump as claimed in claim 2, wherein the air blowing port and the air suction port are both connected to a paper feeding flight, and the first solenoid valve is connected to the paper feeding flight through a first air flow sensor.
5. The pneumatic air pump according to claim 1, further comprising a second regulating valve and a second solenoid valve provided between the air compressor and the second air inlet and connected in series, the second regulating valve being connected to the air compressor, and the second solenoid valve being connected to the second air inlet.
6. The pneumatic air pump of claim 5, further comprising a second air pressure gauge connected to the second regulator valve.
7. The pneumatic air pump as recited in claim 1, wherein a third barometer is disposed on the air intake duct.
8. The pneumatic air pump of claim 1, wherein the first channel structure comprises a first pipe and a ball valve; two ends of the first pipeline are respectively connected with the first air inlet and the air blowing port; the ball valve is arranged on the first pipeline.
9. The pneumatic air pump as claimed in claim 1, wherein a silencer is connected to an outlet of the outlet pipe at an end away from the splitter, and a connection point of the suction pipe and the outlet pipe is located between the outlet and the silencer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811437323.1A CN109733929B (en) | 2018-11-28 | 2018-11-28 | Pneumatic air pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811437323.1A CN109733929B (en) | 2018-11-28 | 2018-11-28 | Pneumatic air pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109733929A CN109733929A (en) | 2019-05-10 |
| CN109733929B true CN109733929B (en) | 2020-05-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811437323.1A Active CN109733929B (en) | 2018-11-28 | 2018-11-28 | Pneumatic air pump |
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| Country | Link |
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| CN (1) | CN109733929B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111840026A (en) * | 2020-07-03 | 2020-10-30 | 上海谷为精密机械有限公司 | Beauty instrument and control method for blowing and air suction of beauty instrument |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11208047A (en) * | 1998-01-29 | 1999-08-03 | Fuji Photo Film Co Ltd | Image recorder |
| CN202729385U (en) * | 2012-08-18 | 2013-02-13 | 温州三鑫印刷机械有限公司 | Paper feeding device of embossing machine |
| CN103482382A (en) * | 2013-09-04 | 2014-01-01 | 许昌学院 | Paper dividing device and paper dividing method |
| CN203652881U (en) * | 2013-12-04 | 2014-06-18 | 汕头市山河实业有限公司 | Feeder paper feeding machine |
| CN107662730A (en) * | 2017-11-03 | 2018-02-06 | 佛山市南海区西樵中心印刷厂 | A kind of paper separating device |
| CN207078767U (en) * | 2017-06-23 | 2018-03-09 | 深圳市金富利纸品包装有限公司 | One kind flies up to paper advance mechanism |
| CN207621680U (en) * | 2017-12-08 | 2018-07-17 | 京信通信系统（中国）有限公司 | More air source controllers |
-
2018
- 2018-11-28 CN CN201811437323.1A patent/CN109733929B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11208047A (en) * | 1998-01-29 | 1999-08-03 | Fuji Photo Film Co Ltd | Image recorder |
| CN202729385U (en) * | 2012-08-18 | 2013-02-13 | 温州三鑫印刷机械有限公司 | Paper feeding device of embossing machine |
| CN103482382A (en) * | 2013-09-04 | 2014-01-01 | 许昌学院 | Paper dividing device and paper dividing method |
| CN203652881U (en) * | 2013-12-04 | 2014-06-18 | 汕头市山河实业有限公司 | Feeder paper feeding machine |
| CN207078767U (en) * | 2017-06-23 | 2018-03-09 | 深圳市金富利纸品包装有限公司 | One kind flies up to paper advance mechanism |
| CN107662730A (en) * | 2017-11-03 | 2018-02-06 | 佛山市南海区西樵中心印刷厂 | A kind of paper separating device |
| CN207621680U (en) * | 2017-12-08 | 2018-07-17 | 京信通信系统（中国）有限公司 | More air source controllers |
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| CN109733929A (en) | 2019-05-10 |
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Effective date of registration: 20210623 Address after: 521000 Hongze Industrial Park, Beizhan 2nd Road, North Industrial Zone, Chaozhou Avenue, Chaozhou City, Guangdong Province Patentee after: GUANGDONG NEW GRAND LONG PACKING Co.,Ltd. Address before: 518000 No.10, Dafu Industrial Zone, Kukeng community, Guanlan street, Longhua District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN XINHONGZE PACKAGING Co.,Ltd. |