A full performance detection device for gas pressure regulator with self-cleaning function

Abstract

The application discloses a full-performance detection device for a gas pressure regulator with a self-cleaning function, which comprises a valve body, flanges fixedly connected to two ends of the valve body, a dial plate arranged above the valve body, a clamping frame clamped to the inner wall of the valve body, a filter screen fixedly connected to the inner wall of the clamping frame, a micro motor clamped to the inner surface of the filter screen, and a rotating shaft fixedly connected to the left end of the micro motor. In the application, the dial plate can monitor and adjust the gas pressure in the valve body in real time, thereby improving the safety during gas delivery. The filter screen can filter the solid impurities remaining in the gas, ensuring the purity of the gas. The scraping hole brush is in contact with the surface of the filter screen during rotation, generates friction, and is inserted into the filter screen mesh hole, thereby scraping the adsorbed impurities to the inner wall of the valve body, preventing the filter screen from being blocked by the impurities and affecting the filtering effect and preventing the internal pressure of the valve body from continuously rising.

Description

Technical Field

[0001] This invention belongs to the field of pressure regulator testing, specifically relating to a full-performance testing device for gas pressure regulators with self-cleaning function. Background Technology

[0002] A gas pressure regulator is an automatic control device used in a gas supply system. It precisely reduces and stably maintains the high inlet pressure in a gas pipeline or cylinder at the low pressure level required by the equipment. At the same time, it ensures that the output pressure remains constant regardless of fluctuations in upstream gas pressure or changes in downstream gas consumption. As a core device in the gas transmission and distribution system, the performance of the gas pressure regulator is directly related to the safety and stability of the gas supply. Existing detection devices suffer from poor interface compatibility and cumbersome operation.

[0003] Patent CN220956916U discloses a self-cleaning valve. This patent includes a main body assembly and a cleaning assembly. The cleaning assembly includes a cleaning element disposed on the inner wall of the housing, within the space enclosed by the housing and the outer wall of the valve core. The cleaning element has a spray hole connected to an external cleaning medium source. The valve core rotates within the housing to connect its orifice with a connecting port, forming a flow channel. A sealing element is disposed between the valve core orifice and the connecting port. When the valve core rotates to the closed state, the sealing element ensures a tight seal between the valve core and the housing. Simultaneously, the cleaning element, with its spray hole, is positioned between the housing and the valve core. The cleaning medium is delivered to the cleaning element, and the cleaning element uses the spray hole to spray the cleaning medium onto the valve core, sealing element, and housing. The cleaning medium is sprayed onto the inner wall of the valve core and other surfaces to achieve the cleaning purpose. The pressure of the cleaning medium can be controlled to adapt to different valve cleaning needs and enhance the cleaning effect. The valve core rotates within the housing to connect the valve core orifice with the connecting port, forming a flow channel. A sealing element is installed between the valve core orifice and the connecting port. When the valve core rotates to the closed state, the sealing element ensures a tight seal between the valve core and the housing. Simultaneously, a cleaning element with a spray nozzle is installed between the housing and the valve core. The cleaning element has a spray nozzle, and an external cleaning medium source delivers the cleaning medium to the cleaning element. The cleaning element uses the spray nozzle to spray the cleaning medium onto the valve core, sealing element, and the inner wall of the housing to achieve the cleaning purpose. The pressure of the cleaning medium can also be controlled to adapt to different valve cleaning needs and enhance the cleaning effect.

[0004] However, due to the impurities in the gas medium, the detection pipeline and pressure regulator valve port of the above-mentioned device are easily contaminated after long-term use, resulting in decreased sealing performance, inaccurate detection accuracy, and even affecting the service life of the equipment, making it difficult to meet the needs of efficient and accurate modern detection. Summary of the Invention

[0005] The purpose of this invention is to provide a gas pressure regulator full performance testing device with self-cleaning function to solve the problems of poor adaptability, cumbersome operation, and the fact that the test pipeline and pressure regulator valve port are easily contaminated after long-term use due to impurities in the gas medium, resulting in decreased sealing performance, inaccurate test accuracy, and even affecting the service life of the equipment, making it difficult to meet the needs of efficient and accurate modern testing.

[0006] To achieve the above objectives, the present invention provides a valve body, wherein flanges are fixedly connected to both ends of the valve body, a dial is provided on the top of the valve body, a retaining frame is snapped into the inner wall of the valve body, a filter screen is fixedly connected to the inner wall of the retaining frame, a micro motor is snapped into the inner surface of the filter screen, and a rotating shaft is fixedly connected to the left end of the micro motor. A pollution prevention and unblocking device is installed inside the valve body. The pollution prevention and unblocking device is used to filter the gas and to self-clean the inside of the valve body. An impurity collection device is provided at the bottom of the valve body and is used to centrally discharge impurities remaining inside the valve body.

[0007] In one or more embodiments of the present invention, the valve body includes: A groove is formed at the left end of the rotating shaft, and an insert is engaged on the inner surface of the groove. A sleeve is fixedly connected to the left side of the insert. A connecting plate is fixedly connected to the circumferential surface of the casing, and a scraping brush is fixedly connected to the right side of the connecting plate.

[0008] In one or more embodiments of the present invention, the valve body further includes: An external slot is located on the left side of the card frame; An inner card slot is provided inside the card frame; A connector is fixedly connected to the inner wall of the valve body, and a retaining strip is fixedly connected to the right end of the connector.

[0009] In one or more embodiments of the present invention, the sleeve and the left end of the circumferential surface of the rotating shaft are engaged, the right side of the scraping brush and the left side of the filter screen abut against each other, the outer slot and the inner slot are interconnected, the locking strip and the inner surface of the inner slot are engaged, and the connector and the inner surface of the outer slot abut against each other.

[0010] In one or more embodiments of the present invention, the anti-fouling and unblocking device includes: A collection trough is provided at the bottom of the valve body, and a drain outlet is provided on the bottom left side of the collection trough. A wall scraper roller is disposed inside the valve body and is used to clean impurities adhering to the inner wall of the valve body.

[0011] In one or more embodiments of the present invention, the anti-fouling and unblocking device further includes: A rotating rod is rotatably connected to the left side of the connecting plate away from the housing, and a gear is fixedly connected to the circumferential surface of the left end of the rotating rod. A toothed ring, which is fixedly connected to the left side of the valve body inner wall; A through hole is provided on the left side of the valve body.

[0012] In one or more embodiments of the present invention, the circumferential surface of the scraping roller abuts against the inner wall of the valve body, the scraping roller and the circumferential surface of the rotating rod are fixedly connected, the gear and the inner side of the gear ring are meshed, and the through hole and the collection groove are interconnected.

[0013] In one or more embodiments of the present invention, the impurity summarization device includes: A lead screw is rotatably connected to the inner surface of a through hole, and a knob is fixedly connected to the left end of the lead screw; The scraper is threaded onto the circumferential surface of the lead screw.

[0014] In one or more embodiments of the present invention, the impurity summarization device further includes: The interface is fixedly connected to the lower left surface of the valve body, and a screw cap is threaded onto the circumferential surface of the interface. A partition is hinged to the front side of the inner wall of the collection trough, and inclined pressure plates are fixedly connected to the left and right sides of the upper surface of the partition.

[0015] In one or more embodiments of the present invention, the right end of the lead screw is rotatably connected to the right side of the inner wall of the collection groove, the scraper is slidably connected to the inner wall of the collection groove, a torsion spring is provided at the hinge of the partition and the collection groove, the circumferential surface of the rotating rod abuts against the inclined surface of the inclined pressure plate, and the end of the connecting plate away from the casing abuts against the inclined surface of the inclined pressure plate.

[0016] Compared with the prior art, the beneficial effects of the present invention are that the gas pressure in the valve body can be monitored and adjusted in real time through the dial, thereby improving the safety of gas delivery. The filter screen can filter the solid impurities remaining in the gas to ensure the purity of the gas. During the rotation of the scraper brush, it comes into contact with the surface of the filter screen and generates friction and inserts into the mesh of the filter screen to scrape the adsorbed impurities off onto the inner wall of the valve body, preventing the filter screen from being blocked by impurities and affecting the filtration effect. The internal pressure of the valve body continues to rise. Rotating the filter screen counterclockwise by a certain angle allows the retaining strip to be pulled out from the inner retaining groove. This modular structure facilitates the quick disassembly and cleaning of the filter screen, ensuring the long-term filtration effect of the device. After the scraper roller contacts the inner wall of the valve body, it scrapes off the impurities adhering to the inner wall and pushes them into the collection trough. When a certain amount of impurities accumulate in the collection trough, the drain port can discharge the impurities, thus facilitating and quickly cleaning and discharging the impurities accumulated inside the valve body, improving the cleaning effect of the device. The circumferential rotation of the scraper roller can clean the impurities adhering to the inner wall of the valve body, further improving the cleaning effect. When the scraper roller rotates, its circumferential surface can contact the inner wall of the valve body, avoiding excessive accumulation of impurities at a certain angle, which would reduce friction and make it difficult to completely remove the impurities adhering to the inner wall of the valve body, thus improving the cleaning efficiency. When the scraper slides, it generates friction with the inner wall of the collection trough, which gathers the impurities that fall into the collection trough to the left and pushes them into the interface. At this time, rotating the cap opens the device, allowing the impurities to fall out of the device quickly, improving the convenience of cleaning. After the inclined pressure plate presses down, it drives the partition to rotate and open along its hinge with the inner wall of the collection trough. This allows the impurities to fall into the collection trough. The partition rotates back to its original position due to the elasticity of the torsion spring at its hinge with the inner wall of the collection trough, thus blocking the collection trough and preventing the impurities inside the collection trough from being affected by the airflow and drifting back into the valve body, thus affecting the cleaning effect. Attached Figure Description

[0017] Figure 1 This is a perspective view of the front side of the device in one embodiment of the present invention; Figure 2 This is a three-dimensional half-sectional view of the front side of the valve body in one embodiment of the present invention; Figure 3 This is a three-dimensional half-sectional view of the front side of the card frame in one embodiment of the present invention; Figure 4 As shown in one embodiment of the present invention Figure 3 Enlarged view of A in the middle; Figure 5 As shown in one embodiment of the present invention Figure 3 Enlarged view of B in the middle; Figure 6 This is a three-dimensional half-sectional view of the front side of the anti-fouling and unblocking device in one embodiment of the present invention; Figure 7 As shown in one embodiment of the present invention Figure 6 Enlarged view of C; Figure 8 This is a three-dimensional half-sectional view of the front side of the impurity collection device in one embodiment of the present invention.

[0018] Figure 9 As shown in one embodiment of the present invention Figure 8 Enlarged view of D; Figure 10 As shown in one embodiment of the present invention Figure 8 A magnified view of E in the middle.

[0019] Explanation of key figure labels: 1. Valve body; 2. Dial; 3. Flange; 4. Frame; 5. Filter screen; 6. Micro motor; 7. Shaft; 8. Anti-fouling and unblocking device; 9. Impurity collection device; 10. Groove; 11. Housing; 12. Insert block; 13. Connecting plate; 14. Scraper brush; 15. Outer slot; 16. Inner slot; 17. Connector; 18. Clip; 81. Collection groove; 82. Drain outlet; 83. Scraper roller; 84. Rotating rod; 85. Gear; 86. Gear ring; 87. Through hole; 91. Lead screw; 92. Knob; 93. Scraper; 94. Interface; 95. Cap; 96. Partition; 97. Inclined pressure plate. Detailed Implementation

[0020] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0021] like Figure 1-10As shown, one embodiment of the present invention is: a gas pressure regulator full performance testing device with self-cleaning function, including a valve body 1, flanges 3 fixedly connected to both ends of the valve body 1, a dial 2 provided above the valve body 1, a frame 4 clamped to the inner wall of the valve body 1, a filter screen 5 fixedly connected to the inner wall of the frame 4, a micro motor 6 clamped to the inner surface of the filter screen 5, a rotating shaft 7 fixedly connected to the left end of the micro motor 6, a dirt-proof and unblocking device 8 disposed inside the valve body 1, the dirt-proof and unblocking device 8 being used to filter the gas and self-clean the inside of the valve body 1, an impurity collection device 9 disposed at the bottom of the valve body 1, the impurity collection device 9 being used to centrally discharge the impurities remaining inside the valve body 1, the dial 2 being able to monitor and adjust the gas pressure inside the valve body 1 in real time, thereby improving the safety of gas delivery, the filter screen 5 being able to filter the solid impurities remaining in the gas, ensuring the purity of the gas, the scraping brush 14, during rotation, contacting the surface of the filter screen 5 to generate friction and inserting into the mesh of the filter screen 5 to scrape the adsorbed impurities onto the inner wall of the valve body 1, preventing the filter from being filtered out. The filter screen 5 is clogged with impurities, affecting the filtration effect and causing the internal pressure of the valve body 1 to continuously rise. The valve body 1 includes a groove 10, which is located at the left end of the rotating shaft 7. A plug 12 is engaged with the inner surface of the groove 10. A housing 11 is fixedly connected to the left side of the plug 12. A connecting plate 13 is fixedly connected to the circumferential surface of the housing 11. A scraping brush 14 is fixedly connected to the right side of the connecting plate 13. The valve body 1 also includes an outer slot 15, which is located on the left side of the frame 4. An inner slot 16 is located inside the frame 4. A connector 17 is fixedly connected to the valve body 1. The inner wall of body 1 has a locking strip 18 fixedly connected to the right end of connector 17. The sleeve 11 and the left end of the circumferential surface of the rotating shaft 7 are engaged. The right side of scraping brush 14 and the left side of filter screen 5 are abutted. The outer slot 15 and the inner slot 16 are interconnected. The locking strip 18 is engaged with the inner surface of the inner slot 16. The connector 17 is abutted with the inner surface of the outer slot 15. When the filter screen 5 is rotated counterclockwise by a certain angle, the locking strip 18 is pulled out from the inner slot 16. This modular structure facilitates the quick disassembly and cleaning of the filter screen 5, ensuring the long-term filtration effect of the device. In gas transmission systems, real-time monitoring and regulation of the gas pressure inside the pipeline are necessary to quickly respond to extreme conditions such as overpressure, underpressure, and sudden flow changes during gas transmission. Therefore, pressure regulators need to be installed at certain nodes in the gas transmission system to achieve real-time monitoring and gas pressure control. The monitoring of gas pressure requires extreme precision; therefore, the pressure regulator needs to be tested before installation to ensure its accuracy. Valve body 1 is installed between two test gas transmission pipeline sections, and gas is then supplied into it. The accuracy of the pressure regulator is tested by adjusting the gas pressure and flow rate. When gas flows through valve body 1, the internal components of valve body 1 are used to monitor the pressure... After the force and flow sensors detect changes in pressure and flow, they transmit the data to dial 2. After receiving the data, dial 2 displays the real-time gas pressure data through pointers and electronic displays, allowing operators to compare the input gas and the detected data to quickly determine whether the regulator's monitoring function is up to standard. Furthermore, after the gas is regulated by the regulator, the sensors monitor whether the gas output from the valve body 1 is stable, thus determining whether the regulator's gas regulation function is up to standard. During the testing process, if a large amount of dust and impurities enter and accumulate inside the valve body 1, it can easily affect the accuracy of the regulator's performance testing. Therefore, it is necessary to ensure the cleanliness of the inside of the valve body 1.

[0022] Working principle: The two ends of valve body 1 are connected to the gas transmission pipeline via flange 3. During gas transmission, dial 2 is activated. Dial 2 can monitor and adjust the gas pressure inside valve body 1 in real time, thereby improving the safety of gas transmission. Before installing valve body 1 onto the gas transmission pipeline, filter screen 5 is inserted into valve body 1 through clip frame 4. Filter screen 5 can filter solid impurities remaining in the gas to ensure gas purity. After a long period of gas transmission, when more impurities are adsorbed on filter screen 5, the pressure inside valve body 1 increases. When dial 2 detects the pressure increase, it can control micro motor 6 to start. Micro motor 6 drives shaft 7 to rotate. Shaft 7 drives insert block 12 to rotate through groove 10. 12 drives the housing 11 to rotate, the housing 11 drives the connecting plate 13 to rotate, and the connecting plate 13 drives the scraping brush 14 to rotate. During the rotation, the scraping brush 14 contacts the surface of the filter screen 5 to generate friction and inserts into the mesh of the filter screen 5 to scrape the adsorbed impurities off to the inner wall of the valve body 1, preventing the filter screen 5 from being blocked by impurities and affecting the filtration effect. The internal pressure of the valve body 1 continues to rise. After the valve body 1 is removed from the gas transmission pipeline, the filter screen 5 is rotated counterclockwise by a certain angle so that the retaining strip 18 is pulled out from the inner retaining groove 16. At this time, the retaining strip 18 is aligned with the outer slot 15. Then, the micro motor 6 is held to move the filter screen 5 and the retaining frame 4 to the right and pull them away from the valve body 1. This modular structure facilitates the quick disassembly and cleaning of the filter screen 5, ensuring the long-term filtration effect of the device.

[0023] like Figure 1-10 As shown, based on the above embodiments, in another embodiment of the present invention, the anti-fouling and unblocking device 8 includes a collection groove 81, which is opened at the bottom end of the inner wall of the valve body 1. A drain port 82 is opened on the left side of the bottom of the collection groove 81. A scraping roller 83 is disposed inside the valve body 1. The scraping roller 83 is used to clean impurities adhering to the inner wall of the valve body 1. After the scraping roller 83 contacts the inner wall of the valve body 1, it scrapes off the impurities adhering to its inner wall and pushes them into the collection groove 81. When a certain amount of impurities accumulate in the collection groove 81, the drain port 82 can discharge the impurities, thereby facilitating the quick cleaning and discharge of impurities accumulated inside the valve body 1, improving the cleaning effect of the device. The anti-fouling and unblocking device 8 also includes a rotating rod 84, which is rotatably connected to the connecting plate 13. On the left side away from the end of the housing 11, a gear 85 is fixedly connected to the circumferential surface of the left end of the rotating rod 84. A gear ring 86 is fixedly connected to the left side of the inner wall of the valve body 1. A through hole 87 is opened on the left side of the valve body 1. The circumferential surface of the scraping roller 83 abuts against the inner wall of the valve body 1. The circumferential surface of the scraping roller 83 and the rotating rod 84 are fixedly connected. The gear 85 and the gear ring 86 are meshed on the inner side. The through hole 87 and the collection groove 81 are interconnected. The circumferential rotation of the scraping roller 83 can clean the impurities adhering to the inner wall of the valve body 1, further improving the cleaning effect. When the scraping roller 83 rotates, its circumferential surface can contact the inner wall of the valve body 1, avoiding the accumulation of too many impurities at a certain angle, which would reduce the friction and make it difficult to completely remove the impurities adhering to the inner wall of the valve body 1, thereby improving the cleaning efficiency.

[0024] Working principle: The circumferentially rotating scraper roller 83 scrapes away impurities adhering to the inner wall of the valve body 1 after contacting it, and pushes them into the collection trough 81. When a certain amount of impurities accumulates in the collection trough 81, the drain port 82 can discharge the impurities, thus facilitating the quick cleaning and discharge of impurities accumulated inside the valve body 1, improving the cleaning effect of the device. When the connecting plate 13 rotates, it drives the rotating rod 84 to rotate circumferentially, and the rotating rod 84 drives the scraper roller 83 to rotate circumferentially, so that the scraper roller 83 can clean the circumference of the inner wall of the valve body 1. The impurities are removed, further improving the cleaning effect. During the circumferential rotation of the rotating rod 84, the gear 85 rotates. During the rotation of the gear 85, it achieves rotation by meshing with the gear ring 86. The rotation of the gear ring 86 drives the rotating rod 84 to rotate, and the rotating rod 84 then drives the scraping roller 83 to rotate. When the scraping roller 83 rotates, its circumferential surface can contact the inner wall of the valve body 1, avoiding excessive accumulation of impurities at a certain angle, which would reduce friction and make it difficult to completely remove the impurities adhering to the inner wall of the valve body 1, thereby improving the cleaning efficiency.

[0025] like Figure 1-10As shown, in another embodiment of the present invention, based on the above embodiments, the impurity collecting device 9 includes a lead screw 91, which is rotatably connected to the inner surface of the through hole 87. A knob 92 is fixedly connected to the left end of the lead screw 91. A scraper 93 is threadedly connected to the circumferential surface of the lead screw 91. When the scraper 93 slides, it generates friction with the inner wall of the collecting groove 81, thereby collecting the impurities that fall into the collecting groove 81 to the left side and pushing them into the interface 94. At this time, rotating the cap 95 opens the device, allowing the impurities to fall out of the device quickly, improving the convenience of cleaning. The impurity collecting device 9 also includes an interface 94, which is fixedly connected to the lower left surface of the valve body 1. A cap 95 is threadedly connected to the circumferential surface of the interface 94. A partition 96 is hinged to the front side of the inner wall of the collecting groove 81. An inclined pressure plate 97 is fixedly connected to the left and right sides of the upper surface of the partition 96. The right end of the screw 91 is rotatably connected to the right side of the inner wall of the collection trough 81. The scraper 93 is slidably connected to the inner wall of the collection trough 81. A torsion spring is provided at the hinge of the partition 96 and the collection trough 81. The circumferential surface of the rotating rod 84 abuts against the inclined surface of the inclined pressure plate 97. The end of the connecting plate 13 away from the housing 11 abuts against the inclined surface of the inclined pressure plate 97. After the inclined pressure plate 97 is pressed down, it drives the partition 96 to rotate and open along the hinge of its connection with the inner wall of the collection trough 81. At this time, impurities can fall into the collection trough 81. The partition 96 is rotated and reset by the elasticity of the torsion spring at the hinge of its connection with the inner wall of the collection trough 81, thereby blocking the collection trough 81 and preventing impurities inside the collection trough 81 from being affected by the airflow and re-entering the valve body 1, thus affecting the cleaning effect.

[0026] Working principle: After the device has been supplying gas for a long time, turn knob 92. Knob 92 drives screw 91 to rotate within through hole 87. When screw 91 rotates, it drives scraper 93 to slide to the left within collection trough 81. As scraper 93 slides, it generates friction with the inner wall of collection trough 81, thereby collecting impurities that have fallen into collection trough 81 to the left and pushing them into interface 94. At this time, rotating and opening cover 95 allows impurities to fall out of the device quickly, improving the convenience of cleaning. During the circumferential rotation of lever 84, when... When it moves to the bottom of the valve body 1, it contacts the inclined surface of the inclined pressure plate 97 and is pushed down by the guide of the inclined surface. After the inclined pressure plate 97 is pressed down, it drives the partition plate 96 to rotate and open along the hinge point between it and the inner wall of the collection groove 81. At this time, the impurities can fall into the collection groove 81. Conversely, when the rotating rod 84 moves away from the inclined pressure plate 97, the partition plate 96 is rotated and reset by the elastic effect of the torsion spring at the hinge point between it and the inner wall of the collection groove 81, thereby blocking the collection groove 81 and preventing the impurities inside the collection groove 81 from being affected by the airflow and drifting back into the valve body 1, thus affecting the cleaning effect.

[0027] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A full-performance testing device for a gas pressure regulator with self-cleaning function, characterized in that, include: A valve body (1) is provided with flanges (3) fixedly connected to both ends of the valve body (1), a dial (2) is provided on the top of the valve body (1), a clip frame (4) is snapped into the inner wall of the valve body (1), a filter screen (5) is fixedly connected to the inner wall of the clip frame (4), a micro motor (6) is snapped into the inner surface of the filter screen (5), and a rotating shaft (7) is fixedly connected to the left end of the micro motor (6). Anti-fouling and unblocking device (8), the anti-fouling and unblocking device (8) is installed inside the valve body (1), the anti-fouling and unblocking device (8) is used to filter the gas and self-clean the inside of the valve body (1); Impurity collection device (9) is installed at the bottom of valve body (1) and is used to centrally discharge the impurities remaining inside valve body (1).

2. The gas pressure regulator full performance testing device with self-cleaning function according to claim 1, characterized in that, The valve body (1) includes: A groove (10) is formed at the left end of the rotating shaft (7). A plug (12) is engaged on the inner surface of the groove (10). A sleeve (11) is fixedly connected to the left side of the plug (12). A connecting plate (13) is fixedly connected to the circumferential surface of the casing (11), and a scraping brush (14) is fixedly connected to the right side of the connecting plate (13).

3. The gas pressure regulator full performance testing device with self-cleaning function according to claim 2, characterized in that, The valve body (1) also includes: An external slot (15) is provided on the left side of the card frame (4); Inner card slot (16), the inner card slot (16) is opened inside the card frame (4); Connector (17), the connector (17) is fixedly connected to the inner wall of valve body (1), and the right end of the connector (17) is fixedly connected to a retaining strip (18).

4. The gas pressure regulator full performance testing device with self-cleaning function according to claim 3, characterized in that, The casing (11) and the left end of the circumferential surface of the rotating shaft (7) are engaged, the right side of the scraping brush (14) and the left side of the filter screen (5) are in contact, the outer slot (15) and the inner slot (16) are interconnected, the clip (18) and the inner surface of the inner slot (16) are engaged, and the connector (17) and the inner surface of the outer slot (15) are in contact.

5. A gas pressure regulator full-performance testing device with self-cleaning function according to claim 4, characterized in that, The anti-fouling and unblocking device (8) includes: The collection groove (81) is located at the bottom of the inner wall of the valve body (1), and a drain outlet (82) is provided on the left side of the bottom of the collection groove (81). A scraping roller (83) is disposed inside the valve body (1) and is used to clean impurities adhering to the inner wall of the valve body (1).

6. A gas pressure regulator full-performance testing device with self-cleaning function according to claim 5, characterized in that, The anti-fouling and unblocking device (8) also includes: Rotating rod (84), the rotating rod (84) is rotatably connected to the left side of the connecting plate (13) away from the sleeve (11), and a gear (85) is fixedly connected to the circumferential surface of the left end of the rotating rod (84). A gear ring (86) is fixedly connected to the left side of the inner wall of the valve body (1); A through hole (87) is provided on the left side of the valve body (1).

7. A gas pressure regulator full-performance testing device with self-cleaning function according to claim 6, characterized in that, The circumferential surface of the scraping roller (83) abuts against the inner wall of the valve body (1), the circumferential surface of the scraping roller (83) and the rotating rod (84) are fixedly connected, the gear (85) and the gear ring (86) are meshed on the inner side, and the through hole (87) and the collection groove (81) are interconnected.

8. A gas pressure regulator full-performance testing device with self-cleaning function according to claim 7, characterized in that, The impurity summarization device (9) includes: A lead screw (91) is rotatably connected to the inner surface of a through hole (87), and a knob (92) is fixedly connected to the left end of the lead screw (91). Scraper (93), which is threaded onto the circumferential surface of lead screw (91).

9. A gas pressure regulator full-performance testing device with self-cleaning function according to claim 8, characterized in that, The impurity summarization device (9) further includes: Interface (94), the interface (94) is fixedly connected to the lower left side surface of the valve body (1), and the circumferential surface of the interface (94) is threaded with a cap (95). A partition (96) is hinged to the front side of the inner wall of the collection groove (81), and inclined pressure plates (97) are fixedly connected to the left and right sides of the upper surface of the partition (96).

10. A gas pressure regulator full-performance testing device with self-cleaning function according to claim 9, characterized in that, The right end of the lead screw (91) is rotatably connected to the right side of the inner wall of the collection groove (81), the scraper (93) is slidably connected to the inner wall of the collection groove (81), a torsion spring is provided at the hinge of the partition (96) and the collection groove (81), the circumferential surface of the rotating rod (84) abuts against the inclined surface of the inclined pressure plate (97), and the end of the connecting plate (13) away from the casing (11) abuts against the inclined surface of the inclined pressure plate (97).

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