An industrial ball valve

Abstract

The present invention discloses an industrial ball valve, which comprises a ball valve body. The ball valve body includes a valve body, a valve seat, a valve core and a valve stem. A driving mechanism is installed on the valve stem. An air supply mechanism is provided at the upper end of the valve body. A cavity connected to the air supply mechanism is arranged inside the valve body. A fixed ring is installed on one side inside the valve body. The upper end of the fixed ring communicates with the cavity. The fixed ring includes a left half-ring and a right half-ring. A rotating side ring strip is rotatably connected to the side wall of the left half-ring. A cleaning mechanism is connected to the side wall of the rotating side ring strip. A first ring body and a second ring body are arranged inside the valve body. The present invention not only reduces the labor intensity of workers and improves work efficiency, but also improves the cleaning effect of the ball valve and the service life of the ball valve through the continuous rotation of the scraping strip. At the same time, the valve core is limited by the first ring body and the second ring body, so that the valve core will not be offset by external influences, and the sealing performance at the contact between the valve seat and the valve core is also increased.

Description

Technical Field

[0001] The present invention mainly relates to the technical field of pipeline valves, and specifically relates to an industrial ball valve. Background Technique

[0002] A ball valve is a valve in which the closing member (ball) is driven by a valve stem and rotates around the axis of the ball valve. It can also be used for the regulation and control of fluids. Ball valves are widely used in industries such as petroleum refining, long-distance pipelines, chemical engineering, papermaking, pharmaceuticals, water conservancy, electric power, municipal engineering, and steel. Ball valves are mainly used in pipelines to cut off, distribute, and change the flow direction of the medium. It only needs a 90-degree rotation operation and a very small rotational torque to close tightly.

[0003] It is difficult to strictly control the cleanliness of the flowing medium inside the ball valve. Therefore, after long-term use of the ball valve, more impurities and dirt will adhere to its inner wall, which will not only breed bacteria inside the ball valve, but also affect the pipeline flow rate of the ball valve. At the same time, it will also cause the inner wall of the ball valve to rust, affecting the service life of the ball valve. Therefore, it is necessary for the staff to cut off the water flow and disassemble and clean it, and its operation is cumbersome and troublesome to use, seriously affecting work efficiency. And when the industrial ball valve is actually in use, it is often located inside the factory. There are many machines inside the factory, and the generated vibration is large, which will affect the ball valve and cause the internal valve stem and valve core to deflect. Once deflected, the valve core will be damaged under the impact of the medium, resulting in the damage of the ball valve and it cannot be used. Summary of the Invention

[0004] The present invention mainly provides an industrial ball valve to solve the technical problems raised in the above background technique.

[0005] The technical solution adopted by the present invention to solve the above technical problems is as follows:

[0006] An industrial ball valve, comprising a ball valve body, the ball valve body including a valve body, a valve seat, a valve core and a valve stem. A driving mechanism is installed on the valve stem. An air supply mechanism is provided at the upper end of the valve body. A cavity connected to the air supply mechanism is provided inside the valve body. A disc is rotatably installed inside the cavity. A disc spring is provided inside the disc, and an air hose is wound around the disc. A fixed ring is installed on one side inside the valve body, and the upper end of the fixed ring communicates with the cavity; the fixed ring includes a left half ring and a right half ring. Ring groove blocks are installed inside both the left half ring and the right half ring. A rotating inner ring strip slides on the inner side wall of the ring groove block. The cross section of the rotating inner ring strip is "T" shaped, and the inner side wall of the rotating inner ring strip is located outside the fixed ring. A shaft rod is provided at the center inside the rotating inner ring strip. A connecting rod is connected between the shaft rod and the rotating inner ring strip. A rotating paddle is installed on one side of the shaft rod. A pushing block is connected to the outer side wall of the rotating inner ring strip. A moving slider with a "T" shaped cross section slides on the outer side wall of the ring groove block, and the upper end of the moving slider is located between the two ring groove blocks. A through hole is provided at the upper end of the moving slider, and a moving stop bar slides in the through hole. An arc-shaped stop block is provided at the upper end of each ring groove block. A rotating side ring strip is rotatably connected to the side wall of the left half ring, and the rotating side ring strip is connected to the moving slider. A cleaning mechanism is connected to the side wall of the rotating side ring strip. The cleaning mechanism includes a fixed strip connected to the rotating side ring strip. A piston block slides inside the fixed strip. An air bag is provided on the side of the piston block facing the rotating side ring strip. A moving strip that can slide out of the fixed strip is connected to the other side of the piston block. A corrosion-resistant rubber strip is connected to one side of the moving strip. Scraper strips are connected to the other side of the corrosion-resistant rubber strip and the side of the fixed strip facing the inner wall of the valve body; a first ring body and a second ring body are provided inside the valve body. A positioning rod is connected between the first ring body and the second ring body. Openings are provided on one side of both the first ring body and the second ring body, and the first ring body slides on the fixed strip through the opening. Card slots are provided on both sides of the moving strip. A clamping block slides inside the card slots, and the clamping block is installed at the opening of the second ring body. A limiting block is installed in the card slots. A corrosion-resistant rope is connected between the side wall of the fixed strip and the side wall of the first ring body.

[0007] Preferably, the driving mechanism includes a fixed ring sleeve connected to the top end of the side wall of the valve stem. A notch is provided on one side of the fixed ring sleeve, and a threaded sleeve is rotatably installed inside the notch. A screw rod is threadedly connected inside the threaded sleeve. The upper end of the valve stem is rotatably connected to a rotating cover. An integrated rotating handle is connected to the upper end of the rotating cover. A clamping groove adapted to the screw rod is provided on one side of the lower end of the rotating cover.

[0008] Preferably, the air supply mechanism includes a moving collar that is slidably connected to the valve stem up and down. One side of the moving collar is provided with an installation box, an exhaust special-shaped pipe, and an intake arc pipe that are connected to each other. An arc-shaped extrusion block slides up and down on one side inside the installation box. The arc-shaped extrusion block and the moving collar are connected by a connecting rod, and a sliding groove for the connecting rod to slide up and down is provided on the side wall of the installation box. A roller is provided at the lower end of the arc-shaped extrusion block. A piston baffle slides inside the exhaust special-shaped pipe. A plurality of telescopic springs are connected between the side of the piston baffle facing the arc-shaped extrusion block and the inner side wall of the exhaust special-shaped pipe. A fixing rod connected to the piston baffle is provided at the center of the plurality of telescopic springs. The roller is rotatably installed inside the other end of the fixing rod.

[0009] Preferably, the pushing block slides inside the circular groove block on the right half-ring, and the pushing block does not contact the arc-shaped baffle. The moving strip can slide inside the two circular groove blocks. The arc-shaped sides of the two arc-shaped baffles both face the moving slider. Both ends of the moving strip are hemispherical.

[0010] Preferably, an extrusion spring is connected between the other side of the piston block and the inner wall of the fixing strip.

[0011] Preferably, the lower end of the intake arc pipe is connected with an integrated reduced pipe. The other end of the reduced pipe extends into the cavity and is provided with a sealing plate cover. The air hose passes through the sealing plate cover and is fixedly connected to the sealing plate cover. The other end of the air hose passes through the rotating side ring strip and the moving slider and is connected to the airbag. The air hose is fixedly connected to the rotating side ring strip.

[0012] Preferably, when the corrosion-resistant rope is straightened, the first ring body and the second ring body are respectively located at the two contact points of the valve seat and the valve core.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] (1) The present invention uses a fixed circular ring, utilizes the power of the medium flow inside the valve body and the pulling force of the disc spring, so that the moving slider drives the rotating side ring strip to continuously rotate back and forth, thereby enabling the cleaning mechanism to continuously rotate back and forth, and continuously cleaning the inner walls of the valve body and the valve core. Not only does it not require manual operation, reducing the labor intensity of the staff and improving work efficiency, but also through continuous rotation, the dirt attached to the inner walls of the valve body and the valve core can be continuously cleaned, ensuring that the dirt can be removed, preventing new dirt from generating, and preventing the inner walls of the valve body and the valve core from rusting. While improving the cleaning effect, the service life of the ball valve is improved;

[0015] (2) The present invention adopts a cleaning mechanism. When the airbag is inflated by air, it pushes the piston block to move, causing the moving bar to move. As the moving bar moves, the limiting block and the clamping block come into contact. Then, the movement of the moving bar drives the second ring body to move, and the first ring body moves along with the positioning rod. When the moving bar moves to the maximum moving distance, the scraping strip covers the inner walls of the valve body and the valve core. The corrosion-resistant rope is straightened, and the first ring body and the second ring body are respectively located at the two contact points of the valve seat and the valve core, making the cleaning not limited to the inside of the valve body or the valve core. While improving the comprehensiveness of cleaning, the first ring body and the second ring body also limit the valve core, so that the valve core will not shift due to external influences, and the sealing performance at the contact point between the valve seat and the valve core is increased;

[0016] (3) After the valve core of the present invention is opened, the screw rod continuously moves downward, pushing the moving ring sleeve to move. The moving ring sleeve drives the arc-shaped extrusion block to move downward through the connecting rod, so that the arc-shaped extrusion block pushes the roller to move through extrusion. The roller makes the piston baffle move through the fixed rod. Due to the movement of the piston baffle, the air inside the exhaust special-shaped pipe enters the air hose through the intake arc pipe. The air hose conveys the gas, causing the airbag to be inflated. As the airbag continues to expand, it pushes the piston block to move, causing the moving bar to move until the moving bar moves to the maximum moving distance. The moving bar in the fixed strip slides out, and the scraping strip covers the inner walls of the valve body and the valve core. After the valve core is opened, the moving bar slides out of the fixed strip, and before the valve core is closed, the moving bar retracts into the fixed strip, which will not affect the opening and closing of the valve core. Utilizing the force of starting the driving mechanism to realize the use of the air supply mechanism makes the operation of the device more convenient. And when the valve core is opened, by sliding the moving bar, the inner walls of the valve body or the valve core can be cleaned, improving the comprehensiveness of cleaning;

[0017] (4) The present invention adopts a driving mechanism. Whether opening or closing the valve core, the screw rod must first enter the clamping groove, so that the rotating handle can control the rotation of the valve rod. After switching, the screw rod is disengaged from the clamping groove, making the rotating handle unable to control the rotation of the valve rod, which can effectively prevent the valve rod from rotating due to external factors and changing the working state of the ball valve, resulting in accidents.

[0018] The following will explain and illustrate the present invention in detail with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional schematic diagram of the present invention;

[0020] Figure 2 is a side view structural schematic diagram of the present invention;

[0021] Figure 3 is a side view structural schematic diagram of the air supply mechanism of the present invention;

[0022] Figure 4 Exploded view of the drive mechanism of the present invention;

[0023] Figure 5 Schematic three-dimensional view of the fixed ring of the present invention;

[0024] Figure 6 Exploded view of the fixed ring of the present invention;

[0025] Figure 7 Schematic view of the partial structure of the fixed ring of the present invention;

[0026] Figure 8 Schematic three-dimensional view of the cleaning mechanism of the present invention;

[0027] Figure 9 For the present invention Figure 8 Enlarged view at position A;

[0028] Figure 10 Schematic view of the partial structure of the cleaning mechanism of the present invention. Description of the drawings:

[0030] 1. Ball valve body; 101. Valve body; 102. Valve seat; 103. Valve core; 104. Valve rod;

[0031] 2. Drive mechanism; 201. Fixed ring sleeve; 202. Threaded sleeve; 203. Screw rod; 204. Rotating cover; 205. Rotating handle; 206. Clamping groove;

[0032] 3. Air supply mechanism; 301. Moving ring sleeve; 302. Installation box; 303. Exhaust special-shaped pipe; 304. Intake arc pipe; 305. Arc-shaped extrusion block; 306. Roller; 307. Piston baffle; 308. Telescopic spring; 309. Fixed rod; 310. Reducing pipe; 311. Sealing plate cover;

[0033] 4. Cavity; 401. Disk; 402. Air hose;

[0034] 5. Fixed ring; 501. Left half ring; 502. Right half ring; 503. Ring groove block; 504. Rotating inner ring bar; 505. Shaft rod; 506. Connecting rod; 507. Rotating paddle; 508. Pushing block; 509. Moving slider; 510. Moving strip; 511. Arc-shaped baffle; 512. Rotating side ring bar;

[0035] 6. Cleaning mechanism; 601. Fixed strip; 602. Piston block; 603. Airbag; 604. Extrusion spring; 605. Moving strip; 606. Corrosion-resistant rubber strip; 607. Scraping strip; 608. First ring body; 609. Second ring body; 610. Card slot; 611. Card block; 612. Corrosion-resistant rope; 613. Positioning rod; 614. Limiting block. Detailed implementation manners

[0036] For ease of understanding the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the present invention more thorough and comprehensive.

[0037] It should be noted that when an element is referred to as being "fixedly provided on" another element, it can be directly on the other element or there can be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs. The terms used in the description of the present invention in this specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0039] Please refer specifically to the attached Figure 1 、 24, the present invention provides a technical solution: an industrial ball valve, comprising a ball valve body 1, the ball valve body 1 includes a valve body 101, a valve seat 102, a valve core 103 and a valve rod 104, a driving mechanism 2 is installed on the valve rod 104, the driving mechanism 2 includes a fixed collar 201 connected to the top end of the side wall of the valve rod 104, a notch is provided on one side of the fixed collar 201, and a threaded sleeve 202 is rotatably installed inside the notch, a screw rod 203 is threadedly connected inside the threaded sleeve 202, the upper end of the valve rod 104 is rotatably connected to a rotating cover 204, the upper end of the rotating cover 204 is connected to an integrated rotating handle 205, and a clamping groove 206 adapted to the screw rod 203 is provided on one side of the lower end of the rotating cover 204. When the staff is using it, first, rub the threaded sleeve 202 with fingers to make the threaded sleeve 202 rotate, so that the screw rod 203 moves upward until the screw rod 203 enters the clamping groove 206. Then, rotate the rotating handle 205, and make the valve rod 104 rotate through the rotating cover 204 to open the valve core 103. After the valve core 103 is opened, reverse-rotate the threaded sleeve 202 to make the screw rod 203 move downward, disengage from the clamping groove 206, and continuously move the screw rod 203 downward to push the moving collar 301 to move. Whether opening or closing the valve core 103, it is necessary to first make the screw rod 203 enter the clamping groove 206 so that the rotating handle 205 can control the rotation of the valve rod 104. After switching, make the screw rod 203 disengage from the clamping groove 206 so that the rotating handle 205 cannot control the rotation of the valve rod 104, which can effectively prevent the valve rod 104 from rotating due to external factors and changing the working state of the ball valve, resulting in accidents.

[0040] Please refer specifically to the attached Figure 1-3, a gas supply mechanism 3 is provided at the upper end of the valve body 101. The gas supply mechanism 3 includes a moving ring sleeve 301 that is slidably connected to the valve stem 104 up and down. One side of the moving ring sleeve 301 is provided with a connected mounting box 302, an exhaust special-shaped pipe 303, and an intake arc pipe 304. An arc-shaped pressing block 305 slides up and down on one side inside the mounting box 302. The arc-shaped pressing block 305 and the moving ring sleeve 301 are connected by a connecting rod, and a chute for the connecting rod to slide up and down is provided on the side wall of the mounting box 302. A roller 306 is provided at the lower end of the arc-shaped pressing block 305. A piston baffle 307 slides inside the exhaust special-shaped pipe 303. A plurality of telescopic springs 308 are connected between the side of the piston baffle 307 facing the arc-shaped pressing block 305 and the inner side wall of the exhaust special-shaped pipe 303. A fixing rod 309 connected to the piston baffle 307 is provided at the center of the plurality of telescopic springs 308. The roller 306 is rotatably installed inside the other end of the fixing rod 309. After the valve core 103 is opened, the screw rod 203 can be continuously lowered to push the moving ring sleeve 301 to move. The moving ring sleeve 301 drives the arc-shaped pressing block 305 to move downward through the connecting rod, so that the arc-shaped pressing block 305 pushes the roller 306 to move through extrusion. The roller 306 makes the piston baffle 307 move through the fixing rod 309. Due to the movement of the piston baffle 307, the air inside the exhaust special-shaped pipe 303 enters the air hose 402 through the intake arc pipe 304.

[0041] Please refer specifically to the attached Figure 1-5 , a cavity 4 connected to the gas supply mechanism 3 is provided inside the valve body 101. A disk 401 is rotatably installed inside the cavity 4. A disc spring is built in the disk 401, and an air hose 402 is wound around the disk 401. The air hose 402 designed in this way can be stretched and pulled. The lower end of the intake arc pipe 304 is connected with an integrated reduced pipe 310. The other end of the reduced pipe 310 extends into the cavity 4 and is provided with a sealing plate cover 311. The air hose 402 passes through the sealing plate cover 311 and is fixedly connected to the sealing plate cover 311. Through the separation of the sealing plate cover 311, the medium inside the ball valve body 1 can be prevented from leaking through the cavity 4. The other end of the air hose 402 passes through the rotating side ring strip 512 and the moving slider 509 and is connected to the airbag 603. The air hose 402 is fixedly connected to the rotating side ring strip 512. By dragging the air hose 402, the moving slider 509 can be driven to move.

[0042] Please refer specifically to the attached Figure 2 、 5, 6 and 7, a fixed ring 5 is installed on one side inside the valve body 101. The upper end of the fixed ring 5 communicates with the cavity 4. The fixed ring 5 includes a left half-ring 501 and a right half-ring 502. Ring groove blocks 503 are installed inside both the left half-ring 501 and the right half-ring 502. A rotating inner ring bar 504 slides on the inner side wall of the ring groove block 503. The cross-section of the rotating inner ring bar 504 is "T"-shaped, and the inner side wall of the rotating inner ring bar 504 is located outside the fixed ring 5. A shaft rod 505 is provided at the center inside the rotating inner ring bar 504. A connecting rod 506 is connected between the shaft rod 505 and the rotating inner ring bar 504. A rotating paddle 507 is installed on one side of the shaft rod 505. A pushing block 508 is connected to the outer side wall of the rotating inner ring bar 504. A moving slider 509 with a "T"-shaped cross-section slides on the outer side wall of the ring groove block 503, and the upper end of the moving slider 509 is located between the two ring groove blocks 503. A through hole is provided at the upper end of the moving slider 509, and a moving stop bar 510 slides in the through hole. An arc-shaped stop block 511 is provided at the upper end inside each ring groove block 503. A rotating side ring bar 512 is rotatably connected to the side wall of the left half-ring 501, and the rotating side ring bar 512 is connected to the moving slider 509.Under the influence of the internal medium flow of the ball valve body 1, the rotating paddle 507 rotates, the shaft rod 505 rotates accordingly, and the rotating inner ring bar 504 is rotated through the connecting rod 506. The pushing block 508 on the rotating inner ring bar 504 rotates following the rotating inner ring bar 504. During the rotation of the pushing block 508, it contacts the moving gear bar 510 and pushes the moving gear bar 510 to move, causing the moving slider 509 to move. The moving slider 509 drives the rotating side ring bar 512 to rotate forward, thereby causing the cleaning mechanism 6 to rotate forward, and the air hose 402 is stretched. After the moving slider 509 rotates forward for one full circle, the moving gear bar 510 contacts the arc-shaped block 511 at the top of the right half-ring 502. The arc-shaped block 511 squeezes the moving gear bar 510, causing the moving gear bar 510 to leave the circular groove block 503 on the right half-ring 502 and enter the circular groove block 503 of the left half-ring 501. At this time, the pushing block 508 no longer contacts the moving gear bar 510, and the moving slider 509 loses the driving force. The disc spring built into the wheel disc 401 drags the stretched air hose 402 to reset, causing the moving slider 509 to rotate in the reverse direction. The moving slider 509 drives the rotating side ring bar 512 to rotate in the reverse direction, thereby causing the cleaning mechanism 6 to rotate in the reverse direction. After the moving slider 509 rotates in the reverse direction for one full circle, the moving gear bar 510 contacts the arc-shaped block 511 at the top of the left half-ring 501. The arc-shaped block 511 squeezes the moving gear bar 510, causing the moving gear bar 510 to leave the circular groove block 503 of the left half-ring 501 and enter the circular groove block 503 on the right half-ring 502, and rotate forward. Repeating this way, the moving slider 509 drives the rotating side ring bar 512 to continuously rotate back and forth, thereby causing the cleaning mechanism 6 to continuously rotate back and forth, cleaning the inner walls of the valve body 101 and the valve core 103 without stopping. Utilizing the power of the internal medium flow of the valve body 101 to achieve cleaning not only eliminates the need for manual operation, reduces the labor intensity of the staff, and improves work efficiency, but also continuously cleans the dirt adhering to the inner walls of the valve body 101 and the valve core 103 through non-stop rotation, ensuring that the dirt can be removed, preventing new dirt from generating, and preventing the inner walls of the valve body 101 and the valve core 103 from rusting. While improving the cleaning effect, the service life of the ball valve is increased.

[0043] Please refer specifically to the appendix Figure 1-7 The pushing block 508 slides inside the circular groove block 503 on the right half-ring 502, and the pushing block 508 does not contact the arc-shaped block 511. The moving gear bar 510 can slide inside the two circular groove blocks 503. The arc sides of the two arc-shaped blocks 511 are both facing the moving slider 509. Both ends of the moving gear bar 510 are hemispherical. The arc side of the arc-shaped block 511 contacts the hemispherical end of the moving gear bar 510, which can better push the moving gear bar 510 to move.

[0044] Please refer specifically to the appendixFigure 2 , 8 , 9, and 10. A cleaning mechanism 6 is connected to the side wall of the rotating side ring strip 512. The cleaning mechanism 6 includes a fixed strip 601 connected to the rotating side ring strip 512. A piston block 602 slides inside the fixed strip 601. An airbag 603 is provided on one side of the piston block 602 facing the rotating side ring strip 512. A moving strip 605 that can slide out of the fixed strip 601 is connected to the other side of the piston block 602. A corrosion-resistant rubber strip 606 is connected to one side of the moving strip 605. Scraper strips 607 are connected to the other side of the corrosion-resistant rubber strip 606 and the side of the fixed strip 601 facing the inner wall of the valve body 101. A compression spring 604 is connected between the other side of the piston block 602 and the inner wall of the fixed strip 601. The air hose 402 conveys gas, causing the airbag 603 to expand due to the gas. As the airbag 603 continuously expands, it pushes the piston block 602 to move, causing the moving strip 605 to move until the moving strip 605 moves to the maximum moving distance. Since the corrosion-resistant rubber strip 606 has a certain compression and expansion effect, after the corrosion-resistant rubber strip 606 moves out of the fixed strip 601 along with the moving strip 605, it will push the scraper strip 607 to move, making the scraper strip 607 fit against the inner walls of the valve body 101 and the valve core 103. Since the fixed strip 601 and the moving strip 605 can cooperate to achieve expansion and contraction, when the valve core 103 is opened, the moving strip 605 in the fixed strip 601 slides out, covering the inner walls of both the valve body 101 and the valve core 103, so that the cleaning is not limited to only the inside of the valve body 101 or the valve core 103, improving the comprehensiveness of the cleaning.

[0045] Please refer specifically to the attached Figure 2 , 8, 9, and 10. Inside the valve body 101, there are a first ring body 608 and a second ring body 609. A positioning rod 613 is connected between the first ring body 608 and the second ring body 609. Both the first ring body 608 and the second ring body 609 have openings on one side, and the first ring body 608 slides on the fixed strip 601 through the opening. On both sides of the moving strip 605, there are clamping grooves 610. Inside the clamping grooves 610, there are sliding clamping blocks 611, and the clamping blocks 611 are installed at the openings of the second ring body 609. The clamping grooves 610 are provided with limiting blocks 614. A corrosion-resistant rope 612 is connected between the side wall of the fixed strip 601 and the side wall of the first ring body 608. When the corrosion-resistant rope 612 is straightened, the first ring body 608 and the second ring body 609 are respectively located at the two contact positions of the valve seat 102 and the valve core 103. As the moving strip 605 moves, the limiting block 614 contacts the clamping block 611. Then, the movement of the moving strip 605 will drive the second ring body 609 to move, and the first ring body 608 follows the movement through the positioning rod 613. When the moving strip 605 moves to the maximum moving distance, the corrosion-resistant rope 612 is straightened, and the first ring body 608 and the second ring body 609 are respectively located at the two contact positions of the valve seat 102 and the valve core 103. Due to the limitation of the valve core 103 by the first ring body 608 and the second ring body 609, the valve core 103 will not be offset by external influences, and the sealing performance at the contact position between the valve seat 102 and the valve core 103 can be improved.

[0046] The specific operation process of the present invention is as follows:

[0047] When the staff member opens the ball valve body 1, first, they rub the threaded sleeve 202 with their fingers to rotate the threaded sleeve 202, causing the screw rod 203 to move upward until the screw rod 203 enters the clamping groove 206. Then, they rotate the rotating handle 205, and through the rotating cover 204, the valve stem 104 rotates to open the valve core 103. After the valve core 103 is fully opened, they rotate the threaded sleeve 202 in the reverse direction, causing the screw rod 203 to move downward, disengaging from the clamping groove 206, and continuously moving the screw rod 203 downward to push the moving ring sleeve 301 to move. The moving ring sleeve 301 drives the arc-shaped extrusion block 305 to move downward through the connecting rod, causing the arc-shaped extrusion block 305 to push the roller 306 to move through extrusion. The roller 306 causes the piston baffle 307 to move through the fixed rod 309. Due to the movement of the piston baffle 307, the air inside the exhaust-shaped pipe 303 enters the air hose 402 through the intake arc pipe 304, causing the airbag 603 to expand due to the intake of air. As the airbag 603 continuously expands, it pushes the piston block 602 to move, causing the moving strip 605 to move. As the moving strip 605 moves, the limit block 614 contacts the clamping block 611. Then, the movement of the moving strip 605 drives the second ring body 609 to move, and the first ring body 608 moves along with the positioning rod 613. When the moving strip 605 moves to the maximum moving distance, the corrosion-resistant rope 612 is straightened, and the first ring body 608 and the second ring body 609 are respectively located at the two contact points of the valve seat 102 and the valve core 103. After the corrosion-resistant rubber strip 606 moves out of the fixed strip 601 along with the moving strip 605, it pushes the scraping strip 607 to move, causing the scraping strip 607 to fit against the inner walls of the valve body 101 and the valve core 103. Under the influence of the flow of the medium inside the ball valve body 1, the rotating paddle 507 rotates, the shaft rod 505 rotates accordingly, and through the connecting rod 506, the rotating inner ring strip 504 rotates. The pushing block 508 on the rotating inner ring strip 504 rotates along with the rotating inner ring strip 504. During the rotation of the pushing block 508, it contacts the moving gear bar 510 and pushes the moving gear bar 510 to move, causing the moving slider 509 to move. The moving slider 509 drives the rotating side ring strip 512 to rotate forward, thereby causing the cleaning mechanism 6 to rotate forward, and the air hose 402 is stretched. After the moving slider 509 rotates forward for one full circle, the moving gear bar 510 contacts the arc-shaped blocking block 511 at the top of the right half-ring 502. The arc-shaped blocking block 511 squeezes the moving gear bar 510, causing the moving gear bar 510 to leave the circular groove block 503 on the right half-ring 502 and enter the circular groove block 503 of the left half-ring 501. At this time, the pushing block 508 no longer contacts the moving gear bar 510, and the moving slider 509 loses the driving force. The disc spring built into the wheel disc 401 drags the stretched air hose 402 to reset, causing the moving slider 509 to rotate in the reverse direction. The moving slider 509 drives the rotating side ring strip 512 to rotate in the reverse direction, thereby causing the cleaning mechanism 6 to rotate in the reverse direction. After the moving slider 509 rotates in the reverse direction for one full circle, the moving gear bar 510 contacts the arc-shaped blocking block 511 at the top of the left half-ring 501,The arc-shaped stopper 511 squeezes the moving bar 510, causing the moving bar 510 to leave the circular ring groove block 503 of the left half-ring 501 and enter the circular ring groove block 503 on the right half-ring 502, and rotate forward. Repeating this process causes the moving slider 509 to drive the rotating side ring bar 512 to continuously rotate back and forth, thereby causing the cleaning mechanism 6 to continuously rotate back and forth, continuously cleaning the inner walls of the valve body 101 and the valve core 103.

[0048] The present invention has been described exemplarily in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited by the above-mentioned manner. As long as such non-substantial improvements are made using the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. An industrial ball valve, comprising a ball valve body (1), characterized in that: The ball valve body (1) includes a valve body (101), a valve seat (102), a valve core (103) and a valve stem (104). A driving mechanism (2) is installed on the valve stem (104). An air supply mechanism (3) is provided at the upper end of the valve body (101). A cavity (4) connected to the air supply mechanism (3) is provided inside the valve body (101). A disk (401) is rotatably installed inside the cavity (4). A disc spring is built into the disk (401), and an air hose (402) is wound around the disk (401). A fixed ring (5) is installed on one side inside the valve body (101), and the upper end of the fixed ring (5) communicates with the cavity (4); The fixed ring (5) includes a left half-ring (501) and a right half-ring (502). Ring groove blocks (503) are installed inside both the left half-ring (501) and the right half-ring (502). A rotating inner ring strip (504) slides on the inner side wall of the ring groove block (503). The cross-section of the rotating inner ring strip (504) is "T"-shaped, and the inner side wall of the rotating inner ring strip (504) is located inside the fixed ring (5). A shaft rod (505) is provided at the center inside the rotating inner ring strip (504). A connecting rod (506) is connected between the shaft rod (505) and the rotating inner ring strip (504). A rotating paddle (507) is installed on one side of the shaft rod (505). A pushing block (508) is connected to the outer side wall of the rotating inner ring strip (504). A moving slider (509) with a "T"-shaped cross-section slides on the outer side wall of the ring groove block (503), and the upper end of the moving slider (509) is located between the two ring groove blocks (503). A through hole is provided at the upper end of the moving slider (509), and a moving stop bar (510) slides in the through hole. An arc-shaped stop block (511) is provided at the upper end inside each ring groove block (503). A rotating side ring strip (512) is rotatably connected to the side wall of the left half-ring (501), and the rotating side ring strip (512) is connected to the moving slider (509). A cleaning mechanism (6) is connected to the side wall of the rotating side ring strip (512). The cleaning mechanism (6) includes a fixed strip (601) connected to the rotating side ring strip (512). A piston block (602) slides inside the fixed strip (601). An airbag (603) is provided on the side of the piston block (602) facing the rotating side ring strip (512). A moving strip (605) that can slide out of the fixed strip (601) is connected to the other side of the piston block (602). A corrosion-resistant rubber strip (606) is connected to one side of the moving strip (605). Scraper strips (607) are connected to the other side of the corrosion-resistant rubber strip (606) and the side of the fixed strip (601) facing the inner wall of the valve body (101); Inside the valve body (101), there is a first ring body (608) and a second ring body (609). A positioning rod (613) is connected between the first ring body (608) and the second ring body (609). Both sides of the first ring body (608) and the second ring body (609) are provided with openings, and the first ring body (608) slides on the fixed strip (601) through the opening. Both sides of the moving strip (605) are provided with clamping grooves (610). A clamping block (611) slides inside the clamping groove (610), and the clamping block (611) is installed at the opening of the second ring body (609). A limiting block (614) is installed in the clamping groove (610). A corrosion-resistant rope (612) is connected between the side wall of the fixed strip (601) and the side wall of the first ring body (608).

2. The industrial ball valve according to claim 1, wherein: The driving mechanism (2) includes a fixed ring sleeve (201) connected to the top end of the side wall of the valve stem (104). There is a notch on one side of the fixed ring sleeve (201), and a threaded sleeve (202) is rotatably installed inside the notch. A screw rod (203) is threadedly connected inside the threaded sleeve (202). The upper end of the valve stem (104) is rotatably connected to a rotating cover (204). The upper end of the rotating cover (204) is connected to an integrated rotating handle (205). A clamping groove (206) adapted to the screw rod (203) is provided on one side of the lower end of the rotating cover (204).

3. An industrial ball valve according to claim 2, characterized in that: The air supply mechanism (3) includes a moving ring sleeve (301) slidably connected to the valve stem (104) up and down. One side of the moving ring sleeve (301) is provided with an installation box (302), an exhaust special-shaped pipe (303) and an intake arc pipe (304) connected to each other. An arc-shaped extrusion block (305) slides up and down on one side inside the installation box (302). The arc-shaped extrusion block (305) and the moving ring sleeve (301) are connected by a connecting rod, and a sliding groove for the connecting rod to slide up and down is provided on the side wall of the installation box (302). A roller (306) is provided at the lower end of the arc-shaped extrusion block (305). A piston baffle (307) slides inside the exhaust special-shaped pipe (303). A plurality of telescopic springs (308) are connected between the side of the piston baffle (307) facing the arc-shaped extrusion block (305) and the inner side wall of the exhaust special-shaped pipe (303). A fixed rod (309) connected to the piston baffle (307) is provided at the center of the plurality of telescopic springs (308). The roller (306) is rotatably installed inside the other end of the fixed rod (309).

4. An industrial ball valve according to claim 1, characterized in that: The pushing block (508) slides inside the circular ring groove block (503) on the right half ring (502), and the pushing block (508) does not contact the arc-shaped baffle (511). The moving blocking strip (510) can slide inside the two circular ring groove blocks (503). The arc-shaped surfaces of the two arc-shaped baffles (511) face the moving slider (509). Both ends of the moving blocking strip (510) are hemispherical.

5. An industrial ball valve according to claim 1, characterized in that: A compression spring (604) is connected between the other side of the piston block (602) and the inner wall of the fixed strip (601).

6. The industrial ball valve according to claim 3, characterized in that: The lower end of the intake arc tube (304) is connected to an integral reducing tube (310). The other end of the reducing tube (310) extends into the interior of the cavity (4) and is provided with a sealing plate cover (311). The air hose (402) penetrates through the sealing plate cover (311) and is fixedly connected to the sealing plate cover (311). The other end of the air hose (402) penetrates through the rotating side ring strip (512) and the moving slider (509) and is connected to the airbag (603). The air hose (402) is fixedly connected to the rotating side ring strip (512).

7. An industrial ball valve according to claim 1, characterized in that: When the corrosion-resistant rope (612) is straightened, the first ring body (608) and the second ring body (609) are respectively located at the two contact points of the valve seat (102) and the valve core (103).

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