Carbon emission metering analysis device

By using the reversing locking mechanism and automatic switching of filter positions in the carbon emission metering and analysis device, the problem of frequent maintenance of traditional devices is solved, and the automatic cleaning of the filter and the long-term and stable operation of the device is realized.

CN120142584AActive Publication Date: 2025-06-13TAIZHOU INST OF METROLOGY & TESTING

Patent Information

Application Number
CN202510350939.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-24
Publication Date
2025-06-13
Estimated Expiration
2045-03-24

AI Technical Summary

Technical Problem

Traditional carbon emission metering devices require frequent maintenance, especially in high dust scenarios, where manual cleaning of filters leads to high operation and maintenance costs and data interruptions.

Method used

A carbon emission metering and analysis device is designed, using a reversing locking mechanism to detect the degree of filter clogging, and automatically clean the filter by automatically changing the filter position and airflow back-blowing cleaning.

Benefits of technology

It reduces the workload and cost of manual cleaning, ensuring long-term stable operation and real-time monitoring capabilities of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention provides a carbon emission metering and analyzing device, which relates to the technical field of carbon emission metering and comprises a carbon emission detector, a carbon dioxide sensor and a diaphragm air pump. The blocking degree of the first filter screen is detected through the reversing locking mechanism, when the first filter screen is blocked, the diaphragm air pump is difficult to extract air from the first conical opening, the air pressure in the first conical opening is reduced, a limiting piston in the reversing locking mechanism compresses a reset spring to move, and a triangular wedge is separated from a first triangular groove; the driving motor drives the reversing rotating disc to rotate, so that the positions of the first filter screen and the second filter screen are changed, manual intervention on the replacement operation of the filter screens is not needed, the blocked first filter screen is changed to the position below the second conical opening, and the second conical opening is formed in the air outlet end, so that the blocked first filter screen is subjected to reverse blowing cleaning by airflow; and when the second filter screen is blocked, the second filter screen can be automatically replaced, so that the automatic cleaning of the filter screens is realized, and the workload and the cost are reduced.
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Description

Technical Field

[0001] The present invention relates to the technical field of carbon emission measurement, and particularly to a carbon emission measurement and analysis device. Background Art

[0002] Driven by the "dual carbon" goal, carbon emission measurement and analysis has become a core technical link in fields such as industrial production, transportation operation, and environmental monitoring. As the core component of the measurement device, the detection accuracy and stability of the carbon dioxide sensor directly affect the reliability of carbon emission data.

[0003] However, dust and particulate matter in the ambient air are easily carried into the detection chamber by the air flow, which will not only contaminate the sensor probe but also may block the gas path channel, resulting in detection errors or even equipment failure. Therefore, an efficient dust removal design at the intake end is the key to ensuring the long-term stable operation of the device. Traditional solutions mostly rely on fixed filters to intercept impurities, but after the filter is blocked, it needs to be manually disassembled and cleaned. Especially in high-dust scenarios such as chemical industry and metallurgy, frequent maintenance not only increases the operation and maintenance cost, but also may cause data interruption due to shutdown, making it difficult to meet the real-time monitoring requirements. Summary of the Invention

[0004] The purpose of the present invention is to provide a carbon emission measurement and analysis device to solve the problem that the traditional carbon emission measurement device needs to be frequently maintained during use in the above background.

[0005] To solve the above technical problems, the technical solution adopted by the present invention is a carbon emission measurement and analysis device, including a carbon emission detector. A carbon dioxide sensor is arranged inside the carbon emission detector. A diaphragm air pump is arranged below the carbon dioxide sensor. One end of the diaphragm air pump is connected to an intake pipe, and the other end of the diaphragm air pump is connected to an exhaust pipe. The intake pipe and the exhaust pipe are respectively connected to the intake end and the exhaust end of the carbon dioxide sensor; The lower end of the intake pipe is fixedly connected to a first conical port, and the lower end of the exhaust pipe is fixedly connected to a second conical port. An intake port and an exhaust port are opened below the carbon emission detector. The first conical port is opposite to the intake port, and the second conical port is opposite to the exhaust port. A linkage shaft is drivenly connected below the diaphragm air pump. The linkage shaft is rotationally connected to a reversing shaft through a magnetic coupling. A reversing rotating disk is fixedly connected to the lower end of the reversing shaft. A first filter screen and a second filter screen are arranged on the reversing rotating disk. The first filter screen is located between the first conical port and the intake port, and the second filter screen is located between the second conical port and the exhaust port; A reversing locking mechanism is arranged on one side of the first conical port. The reversing locking mechanism is used to restrict the rotation of the reversing shaft, and the reversing locking mechanism releases the locking of the reversing shaft when the first filter screen is blocked.

[0006] Further, a driving motor is provided above the diaphragm air pump. The output shaft of the driving motor is rotationally connected to an eccentric wheel. One side of the eccentric wheel is rotationally connected to a first push-pull rod through a rotating shaft. The other end of the first push-pull rod is rotationally connected to a first diaphragm through a rotating shaft. The first diaphragm is fixedly installed between the diaphragm air pump and the intake pipe. The other side of the eccentric wheel is rotationally connected to a second push-pull rod through a rotating shaft. One end of the second push-pull rod is rotationally connected to a second diaphragm through a rotating shaft. The second diaphragm is fixedly installed between the diaphragm air pump and the exhaust pipe.

[0007] Further, a first counterweight and a second counterweight are respectively rotationally connected to the upper and lower sides of the eccentric wheel. The first counterweight and the second counterweight are fixedly connected to the output shaft of the driving motor.

[0008] Further, the linkage shaft is fixedly connected to the second counterweight.

[0009] Further, a first one-way valve is provided at the lower end of the intake pipe, and a second one-way valve is provided at the upper end of the intake pipe. The opening directions of the first one-way valve and the second one-way valve both face upward. A third one-way valve is provided at the lower end of the exhaust pipe, and a fourth one-way valve is provided at the upper end of the exhaust pipe. The opening directions of the third one-way valve and the fourth one-way valve both face downward.

[0010] Further, the magnetic coupling includes a first magnet and a second magnet. The lower end of the linkage shaft is inserted into the reversing shaft. A first magnet is fixedly connected to the lower end of the linkage shaft, and a second magnet is fixedly connected to the inner side of the reversing shaft. There are two or more first magnets and second magnets, and the number of the first magnets and the second magnets is the same. The first magnets and the second magnets are both evenly distributed in a ring shape. The magnetic pole directions of adjacent first magnets are opposite, and the magnetic pole directions of adjacent second magnets are opposite.

[0011] Further, the reversing locking mechanism includes a piston tube. The piston tube is fixedly connected to one side of the first conical port and is communicated with the first conical port. A limiting piston is arranged in the piston tube. A spring retaining ring is fixedly connected in the piston tube. A return spring is arranged between the spring retaining ring and the limiting piston. One end of the limiting piston is fixedly connected to a triangular wedge block.

[0012] Further, a first triangular groove and a second triangular groove are formed at corresponding positions of the reversing shaft. The triangular wedge block is mutually engaged with the first triangular groove.

[0013] Further, the spring retaining ring is fixedly connected to the piston tube by threads, and the position of the spring retaining ring is adjusted by threads.

[0014] Further, the angle between the first triangular groove and the second triangular groove is 180°, and the first triangular groove and the second triangular groove respectively correspond to the first filter screen and the second filter screen.

[0015] Compared with the prior art, the beneficial effects of the present invention include: A carbon emission measurement and analysis device proposed by the present invention uses a commutation locking mechanism to detect the degree of blockage of the first filter screen. When the first filter screen is blocked, it becomes difficult for the diaphragm air pump to draw air from the first conical opening, the air pressure inside the first conical opening decreases, the limit piston inside the commutation locking mechanism compresses the return spring and moves, the triangular wedge block disengages from the first triangular groove, and the drive motor drives the commutation rotating disk to rotate. When the commutation rotating disk rotates exactly 180 degrees, the triangular wedge block will snap into the second triangular groove again, causing the first filter screen and the second filter screen to swap positions. There is no need for manual intervention in the filter screen replacement operation, and the blocked first filter screen is switched to below the second conical opening. Since the second conical opening is arranged at the air outlet end, the air flow will backflush and clean the blocked first filter screen, thus removing the blockage. When the second filter screen is blocked, it will automatically swap back, realizing the automatic cleaning of the filter screen, greatly reducing the workload and cost of manual cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The disclosure of the present invention will be described with reference to the accompanying drawings. It should be understood that the drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present invention. In the drawings, the same reference numerals are used to refer to the same components. Among them: Figure 1 Schematically shows the external structure diagram of a carbon emission measurement and analysis device proposed according to an embodiment of the present invention; Figure 2 Schematically shows the structure diagram of the carbon dioxide sensor and the diaphragm air pump of a carbon emission measurement and analysis device proposed according to an embodiment of the present invention; Figure 3 Schematically shows the structure diagram of the commutation rotating disk of a carbon emission measurement and analysis device proposed according to an embodiment of the present invention; Figure 4 Schematically shows the sectional structure diagram of the diaphragm air pump of a carbon emission measurement and analysis device proposed according to an embodiment of the present invention; Figure 5 Schematically shows the front sectional view structure diagram of the diaphragm air pump of a carbon emission measurement and analysis device proposed according to an embodiment of the present invention; Figure 6 Schematically shows the structure diagram of the magnetic coupling of a carbon emission measurement and analysis device proposed according to an embodiment of the present invention; Figure 7 Schematically shows the structure diagram of the commutation locking mechanism of a carbon emission measurement and analysis device proposed according to an embodiment of the present invention.

[0017] Reference numerals in the figure: 1, carbon emission detector; 101, air inlet; 102, air outlet; 2, carbon dioxide sensor; 3, diaphragm air pump; 4, intake pipe; 401, first conical port; 402, first one-way valve; 403, second one-way valve; 5, exhaust pipe; 501, second conical port; 502, third one-way valve; 503, fourth one-way valve; 6, drive motor; 7, first counterweight; 8, eccentric wheel; 9, first push-pull rod; 10, first diaphragm; 11, second push-pull rod; 12, second diaphragm; 13, second counterweight; 14, linkage shaft; 15, magnetic coupling; 1501, first magnet; 1502, second magnet; 16, reversing shaft; 1601, first triangular groove; 1602, second triangular groove; 17, reversing rotating disk; 18, first filter screen; 19, second filter screen; 20, reversing locking mechanism; 2001, piston tube; 2002, limit piston; 2003, spring retaining ring; 2004, return spring; 2005, triangular wedge block. Specific embodiments

[0018] It is easy to understand that according to the technical solution of the present invention, without changing the essence of the present invention, those of ordinary skill in the art can propose various interchangeable structural forms and implementation methods. Therefore, the following specific embodiments and the accompanying drawings are only illustrative descriptions of the technical solution of the present invention, and should not be regarded as the whole of the present invention or as a limitation or restriction on the technical solution of the present invention.

[0019] According to an embodiment of the present invention in combination with Figure 1-7 shown. A carbon emission measurement and analysis device includes a carbon emission detector 1. A carbon dioxide sensor 2 is provided inside the carbon emission detector 1. The carbon dioxide sensor 2 is used to accurately detect the carbon dioxide content in the environment and provide basic data for carbon emission measurement and analysis. A diaphragm air pump 3 is provided below the carbon dioxide sensor 2. The function of the diaphragm air pump 3 is to provide the power for gas flow, so that external air can enter the device and be detected by passing through the carbon dioxide sensor 2.

[0020] A drive motor 6 is provided above the diaphragm air pump 3. The drive motor 6 serves as a power source and provides power for the operation of the diaphragm air pump 3. The output shaft of the drive motor 6 is rotatably connected to an eccentric wheel 8. The function of the eccentric wheel 8 is to convert the circular motion of the drive motor 6 into a reciprocating linear motion, thereby driving the diaphragm of the diaphragm air pump 3 to move. A first counterweight 7 and a second counterweight 13 are respectively rotatably connected to the upper and lower sides of the eccentric wheel 8. The first counterweight 7 and the second counterweight 13 are fixedly connected to the output shaft of the drive motor 6. The settings of the first counterweight 7 and the second counterweight 13 can balance the centrifugal force generated during the rotation of the eccentric wheel 8, reduce the vibration and noise of the device, and improve the stability and reliability of the device.

[0021] On one side of the eccentric wheel 8, a first push rod 9 is rotatably connected through a rotating shaft. At the other end of the first push rod 9, a first diaphragm 10 is rotatably connected through a rotating shaft. The first diaphragm 10 is fixedly installed between the diaphragm air pump 3 and the intake pipe 4. On the other side of the eccentric wheel 8, a second push rod 11 is rotatably connected through a rotating shaft. At one end of the second push rod 11, a second diaphragm 12 is rotatably connected through a rotating shaft. The second diaphragm 12 is fixedly installed between the diaphragm air pump 3 and the exhaust pipe 5. When the drive motor 6 drives the eccentric wheel 8 to rotate, the eccentric wheel 8 respectively pushes the first diaphragm 10 and the second diaphragm 12 to perform reciprocating motions through the first push rod 9 and the second push rod 11, thereby realizing the suction and exhaust functions of the diaphragm air pump 3.

[0022] One end of the diaphragm air pump 3 is connected to the intake pipe 4, and the other end of the diaphragm air pump 3 is connected to the exhaust pipe 5. The intake pipe 4 and the exhaust pipe 5 are respectively connected to the intake end and the outlet end of the carbon dioxide sensor 2. A first one-way valve 402 is arranged at the lower end of the intake pipe 4, and a second one-way valve 403 is arranged at the upper end of the intake pipe 4. The opening directions of the first one-way valve 402 and the second one-way valve 403 are both upward. A third one-way valve 502 is arranged at the lower end of the exhaust pipe 5, and a fourth one-way valve 503 is arranged at the upper end of the exhaust pipe 5. The opening directions of the third one-way valve 502 and the fourth one-way valve 503 are both downward. The settings of the first one-way valve 402, the second one-way valve 403, the third one-way valve 502, and the fourth one-way valve 503 can ensure the unidirectional flow of gas in the intake pipe 4 and the exhaust pipe 5, prevent gas backflow, and improve the working efficiency and reliability of the diaphragm air pump 3.

[0023] The lower end of the intake pipe 4 is fixedly connected to a first conical port 401, and the lower end of the exhaust pipe 5 is fixedly connected to a second conical port 501. An intake port 101 and an outlet port 102 are opened below the carbon emission detector 1. The first conical port 401 is opposite to the intake port 101, and the second conical port 501 is opposite to the outlet port 102. The designs of the first conical port 401 and the second conical port 501 can make the gas flow more smoothly when entering and leaving the device, and reduce the resistance of gas flow.

[0024] A linkage shaft 14 is connected to the lower part of the diaphragm air pump 3 in a driving manner, and the linkage shaft 14 is fixedly connected to the second counterweight 13. In this way, while the driving motor 6 drives the eccentric wheel 8 to rotate, it will also drive the linkage shaft 14 to rotate through the second counterweight 13. The linkage shaft 14 is rotationally connected to a reversing shaft 16 through a magnetic coupling 15. The magnetic coupling 15 includes a first magnet 1501 and a second magnet 1502. The lower end of the linkage shaft 14 is inserted into the reversing shaft 16. The lower end of the linkage shaft 14 is fixedly connected to the first magnet 1501, and the second magnet 1502 is fixedly connected to the inner side of the reversing shaft 16. There are two or more first magnets 1501 and second magnets 1502, and the number of the first magnets 1501 and the second magnets 1502 is the same. The first magnets 1501 and the second magnets 1502 are evenly distributed in a ring shape. The magnetic pole directions of adjacent first magnets 1501 are opposite, and the magnetic pole directions of adjacent second magnets 1502 are opposite. The setting of the magnetic coupling 15 can achieve non-contact transmission between the linkage shaft 14 and the reversing shaft 16, avoiding wear and faults that may occur in the traditional mechanical transmission method, and improving the reliability and stability of the transmission.

[0025] The lower end of the reversing shaft 16 is fixedly connected to a reversing rotating disc 17. A first filter screen 18 and a second filter screen 19 are arranged on the reversing rotating disc 17. The first filter screen 18 is located between the first conical opening 401 and the air inlet 101, and the second filter screen 19 is located between the second conical opening 501 and the air outlet 102. The functions of the first filter screen 18 and the second filter screen 19 are to filter the air entering the device, remove dust and impurities therein, and prevent damage to the carbon dioxide sensor 2.

[0026] A commutation locking mechanism 20 is provided on one side of the first conical port 401. The commutation locking mechanism 20 is used to restrict the rotation of the commutation shaft 16, and the commutation locking mechanism 20 releases the locking of the commutation shaft 16 when the first filter screen 18 is blocked. The commutation locking mechanism 20 includes a piston tube 2001. The piston tube 2001 is fixedly connected to one side of the first conical port 401 and is in communication with the first conical port 401. A limit piston 2002 is arranged in the piston tube 2001. A spring retaining ring 2003 is fixedly connected in the piston tube 2001. A return spring 2004 is arranged between the spring retaining ring 2003 and the limit piston 2002. One end of the limit piston 2002 is fixedly connected with a triangular wedge 2005. A first triangular groove 1601 and a second triangular groove 1602 are formed at corresponding positions of the commutation shaft 16. The triangular wedge 2005 is engaged with the first triangular groove 1601. The spring retaining ring 2003 is fixedly connected to the piston tube 2001 by threads, and the position of the spring retaining ring 2003 is adjusted by threads, so that the compression degree of the return spring 2004 can be adjusted, and then the elastic force of the return spring 2004 can be adjusted, so as to adjust the pressure required to pull the limit piston 2002, and then the degree of blockage of the filter screen when the commutation locking mechanism 20 is triggered can be preset. The first triangular groove 1601 and the second triangular groove 1602 are separated by 180°, and the first triangular groove 1601 and the second triangular groove 1602 correspond to the first filter screen 18 and the second filter screen 19 respectively.

[0027] The working principle of the present invention is as follows: When the device is running normally, the drive motor 6 drives the eccentric wheel 8 to rotate. The eccentric wheel 8 respectively pushes the first diaphragm 10 and the second diaphragm 12 to reciprocate through the first push rod 9 and the second push rod 11, so that the diaphragm air pump 3 generates the functions of inhaling and exhausting. External air enters the carbon dioxide sensor 2 through the air inlet 101, the first filter screen 18, the first conical port 401, and the air inlet pipe 4 for detection. The detected gas is discharged from the device through the exhaust pipe 5, the second conical port 501, the second filter screen 19, and the air outlet 102.

[0028] In this process, the first filter screen 18 filters the air entering the device. As time goes by, the first filter screen 18 will gradually be blocked by dust and impurities. When the first filter screen 18 is blocked, it becomes difficult for the diaphragm air pump 3 to extract air from the first conical opening 401, resulting in a decrease in the air pressure inside the first conical opening 401. Since the piston tube 2001 is connected to the first conical opening 401, the air pressure inside the piston tube 2001 will also decrease accordingly. The limit piston 2002 moves under the action of the pressure difference, compressing the return spring 2004, so that the triangular wedge 2005 disengages from the first triangular groove 1601. At this time, the locking of the reversing shaft 16 is released, and the drive motor 6 drives the reversing shaft 16 to rotate through the linkage shaft 14 and the magnetic coupling 15, and then drives the reversing rotating disc 17 to rotate. When the reversing rotating disc 17 rotates exactly 180 degrees, the triangular wedge 2005 will be inserted into the second triangular groove 1602 again, causing the first filter screen 18 and the second filter screen 19 to exchange positions. In this way, the blocked first filter screen 18 is switched below the second conical opening 501. Since the second conical opening 501 is for air outlet, the air flow will blow back and clean the blocked first filter screen 18, thus removing the blockage. When the second filter screen 19 is blocked, the above process will be repeated and automatically switched back, eliminating the need for manual cleaning.

[0029] The technical scope of the present invention is not limited to the content described above. Those skilled in the art can make various deformations and modifications to the above embodiments without departing from the technical idea of the present invention, and these deformations and modifications should all fall within the protection scope of the present invention.

Claims

1. A carbon emission measurement and analysis device, characterized in that: It comprises a carbon emission detector, wherein a carbon dioxide sensor is arranged inside the carbon emission detector, a diaphragm air pump is arranged below the carbon dioxide sensor, one end of the diaphragm air pump is connected to an air inlet pipe, and the other end of the diaphragm air pump is connected to an exhaust pipe, and the air inlet pipe and the exhaust pipe are respectively connected to the air inlet end and the air outlet end of the carbon dioxide sensor; The lower end of the air inlet pipe is fixedly connected with a first conical opening, the lower end of the exhaust pipe is fixedly connected with a second conical opening, an air inlet and an air outlet are provided below the carbon emission detector, the first conical opening is opposite to the air inlet, the second conical opening is opposite to the air outlet, a linkage shaft is transmission-connected below the diaphragm air pump, the linkage shaft is rotationally connected with a reversing shaft through a magnetic coupling, a reversing rotating disk is fixedly connected to the lower end of the reversing shaft, a first filter screen and a second filter screen are provided on the reversing rotating disk, the first filter screen is located between the first conical opening and the air inlet, and the second filter screen is located between the second conical opening and the air outlet; A reversing locking mechanism is arranged on one side of the first conical opening, and the reversing locking mechanism is used to limit the rotation of the reversing shaft, and the reversing locking mechanism releases the locking of the restricted reversing shaft when the first filter screen is blocked.

2. A carbon emission measurement and analysis device as claimed in claim 1, characterized in that: A driving motor is arranged above the diaphragm air pump, and the output shaft of the driving motor is rotatably connected to an eccentric wheel, one side of the eccentric wheel is rotatably connected to a first push-pull rod via a rotating shaft, the other end of the first push-pull rod is rotatably connected to a first diaphragm via a rotating shaft, the first diaphragm is fixedly installed between the diaphragm air pump and the intake pipe, the other side of the eccentric wheel is rotatably connected to a second push-pull rod via a rotating shaft, one end of the second push-pull rod is rotatably connected to a second diaphragm via a rotating shaft, and the second diaphragm is fixedly installed between the diaphragm air pump and the exhaust pipe.

3. The carbon emission measurement and analysis device according to claim 2, characterized in that: The upper and lower sides of the eccentric wheel are rotatably connected with a first counterweight block and a second counterweight block, respectively. The first counterweight block and the second counterweight block are fixedly connected to the output shaft of the driving motor.

4. The carbon emission measurement and analysis device according to claim 3, characterized in that: The linkage shaft is fixedly connected to the second counterweight.

5. A carbon emission measurement and analysis device as claimed in claim 1, characterized in that: A first one-way valve is arranged at the lower end of the intake pipe, and a second one-way valve is arranged at the upper end of the intake pipe, and the opening directions of the first one-way valve and the second one-way valve are both upward, a third one-way valve is arranged at the lower end of the exhaust pipe, and a fourth one-way valve is arranged at the upper end of the exhaust pipe, and the opening directions of the third one-way valve and the fourth one-way valve are both downward.

6. A carbon emission measurement and analysis device as claimed in claim 1, characterized in that: The magnetic coupling includes a first magnet and a second magnet. The lower end of the linkage shaft is inserted into the reversing shaft. The lower end of the linkage shaft is fixedly connected to the first magnet. The inner side of the reversing shaft is fixedly connected to the second magnet. There are more than two of the first magnet and the second magnet, and the number of the first magnet and the second magnet is the same. The first magnet and the second magnet are evenly distributed in a ring shape. The adjacent first magnets have opposite magnetic poles, and the adjacent second magnets have opposite magnetic poles.

7. A carbon emission measurement and analysis device as claimed in claim 1, characterized in that: The reversing locking mechanism includes a piston tube, which is fixedly connected to one side of the first tapered mouth and is communicated with the first tapered mouth. A limiting piston is arranged in the piston tube, and a spring retaining ring is fixedly connected in the piston tube. A return spring is arranged between the spring retaining ring and the limiting piston, and a triangular wedge is fixedly connected to one end of the limiting piston.

8. A carbon emission measurement and analysis device as claimed in claim 7, characterized in that: A first triangular groove and a second triangular groove are provided at corresponding positions of the reversing shaft, and the triangular wedge block is interlocked with the first triangular groove.

9. A carbon emission measurement and analysis device as claimed in claim 7, characterized in that: The spring retaining ring is fixedly connected to the piston tube via threads, and the position of the spring retaining ring is adjusted via threads.

10. A carbon emission measurement and analysis device as claimed in claim 8, characterized in that: The first triangular groove and the second triangular groove are 180° apart, and the first triangular groove and the second triangular groove correspond to the first filter screen and the second filter screen respectively.

Citation Information

Patent Citations

  • Air purification mechanism of air compressor

    CN115945293A

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    CN119044420A

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    CN218653425U

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