Intelligent early-warning anti-leakage ball valve

Abstract

The invention relates to the technical field of ball valves, in particular to an intelligent early-warning anti-leakage ball valve. An intelligent early-warning anti-leakage ball valve comprises a valve pipe, an air inlet head and an exhaust head are communicated with the valve pipe, an air filtering component is installed in a pressure control pipe, a valve ball is arranged in the valve pipe, a valve channel with the two ends open and an inflation cavity are formed in the valve ball, and two symmetrically-arranged sealing bags are installed on the valve ball. Inner cavities of the two sealing bags communicate with the inflation cavity, a valve shaft is installed at the top end of the valve ball and rotationally connected with the valve pipe, the valve shaft is rotationally sleeved with a sleeve shaft, and a first torsional spring is installed between the sleeve shaft and the valve shaft. The ball valve has the beneficial effects that when the ball valve works, the double-inflation type sealing bag structure of the valve ball is added on the basis of a traditional ball valve, and the leakage rate of the ball valve is effectively reduced by adding the double-inflation type sealing bag structure; meanwhile, an air inlet impurity filtering structure of the ball valve and a self-cleaning component of the impurity filtering structure are additionally arranged on the basis of a traditional air valve.

Description

Technical Field

[0001] The invention relates to the technical field of ball valves, and in particular to an intelligent early warning anti-leakage ball valve. Background Art

[0002] Ball valves are the most commonly used valves. Ball valves usually adopt soft sealing structures. The sealing reliability of this type of ball valve is poor. The fluid in the medium can easily enter the upper part of the valve stem, causing the valve stem to wear easily, shortening the service life of the ball valve. In addition, sealing parts such as sealing rings are easily worn after being impacted. After a period of use, the seal will be loose, and the ball is not centered, causing leakage when the ball valve is closed, which has a certain impact on production.

[0003] In the prior art, the patent document with publication number CN109667953B discloses a leakage-proof ball valve, including a valve body, a seal, a valve stem, a sealing ring, a valve cover and a ball; the valve body is two, and the ball is fixedly installed between the valve bodies, and a flow channel is provided in the valve body. The above device increases the centering of the ball, improves the sealing of the ball valve, and prevents the ball valve from leaking. However, the above ball valve has the following technical problems when in use: It is not convenient to reduce the leakage rate of the ball valve by adding a double inflatable sealing bag structure; It is not convenient to realize the self-maintenance and self-cleaning of the linkage impurity filter and the impurity filter mechanism during the air intake process of the ball valve; It is not easy to realize automatic warning when the ball valve leaks; Based on this, the present invention provides an intelligent early warning anti-leakage ball valve to solve the problems raised in the above background technology. Summary of the invention

[0004] In view of the technical problems existing in the prior art, the present invention provides an intelligent early warning anti-leakage ball valve to solve the problems that the existing ball valve is not convenient to reduce the leakage rate of the ball valve by adding a double inflatable sealing bag structure, and is not convenient to realize the linked impurity filtering and self-maintenance and self-cleaning of the impurity filtering mechanism during the ball valve intake process.

[0005] The technical solution of the present invention to solve the above technical problems is as follows: an intelligent early warning and leak-proof ball valve comprises a valve tube, the valve tube is respectively connected with an intake head and an exhaust head, the intake head is installed with an air filter component, the valve tube is provided with a valve ball, the interior of the valve ball is respectively provided with a valve channel with two openings at both ends and an inflation chamber, the valve ball is provided with two symmetrically arranged sealing bags, the inner cavities of the two sealing bags are connected with the inflation chamber, the top of the valve ball is provided with a valve shaft, the valve shaft is rotatably connected with the valve tube, a sleeve shaft is rotatably sleeved on the valve shaft, a first torsion spring is installed between the sleeve shaft and the valve shaft, the valve tube is provided with a first limiting groove, the sleeve shaft is fixedly provided with a first limiting block slidably connected with the first limiting groove, the valve tube is respectively provided with a support plate, a pump air pipe and a pressure control pipe, a transmission worm is rotatably installed on the support plate, the sleeve shaft The cam is provided with a plurality of air pumps, and the plurality of air pumps are provided with a plurality of air pumps, the plurality of air pumps are provided with a plurality of air pumps, the plurality of air pumps are provided with a plurality of air pumps.

[0006] The beneficial effects of the present invention are: When the present invention is working, a double inflatable sealing bag structure of the valve ball is added on the basis of the traditional ball valve. By adding the double inflatable sealing bag structure, the leakage rate of the ball valve is effectively reduced. At the same time, the present invention adds an air intake filter structure and a self-cleaning component of the filter structure on the basis of the traditional air valve, thereby effectively improving the functionality of the ball valve and reducing the blockage degree and maintenance difficulty of the ball valve. At the same time, the ball valve also adds an automatic early warning structure when the ball valve leaks, thereby effectively improving the functionality of the ball valve.

[0007] 2) In the present invention, when the ball valve needs to be closed, the transmission worm is driven to make the valve channel and the valve tube be offset by 90°. After the valve channel and the valve tube are offset by 90°, the valve tube is blocked. After the valve channel and the valve tube are offset by 90°, the axes of the two sealing bags are in the same straight line as the axis of the valve tube. With the drive of the transmission worm, the interiors of the two sealing bags are fully aired. After the interiors of the two sealing bags are aired, the connection between the valve ball and the valve tube is fully double-sealed, thereby reducing the leakage of the ball valve during operation. When the ball valve is turned from an open state to a closed state, the valve channel is rotated by setting the first limit groove, the first limit block and the first torsion spring. After moving to a vertical position with the valve tube, it can stop moving, and with the continued driving of the transmission worm, the second limit groove, the second limit block and the second torsion spring are used to keep the pressure relief hole on the pressure control tube and the blocking shaft in a staggered state, the pressure relief part on the pressure control tube is sealed, and the pump air pipe starts to blow air into the interior of the sealing bag until the sealing bag completes the sealing operation on the valve tube. When the ball valve turns from a closed state to an open state, the second limit groove, the second limit block and the second torsion spring are used to first keep the pressure control tube and the pressure relief hole on the blocking shaft in a connected state, and then the gas inside the sealing bag is emptied, and the sealing bag is stored in the receiving groove. With the continued rotation of the transmission worm, the valve path is finally parallel to the valve tube.

[0008] 3) In the present invention, when the ball valve is in a normal ventilation state, the pneumatic shaft rotates at a set speed. After the pneumatic shaft rotates, it drives the reciprocating frame to move back and forth within a set stroke. Through the reciprocating movement of the reciprocating frame, the filter element can move back and forth along the axial direction of the valve pipe. After the filter element moves back and forth along the axial direction of the valve pipe, the solidification and adhesion rate of impurities in the gas on the outer surface of the filter element is effectively reduced, thereby improving the effect of easy removal of impurities on the outer surface of the filter element.

[0009] 4) In the present invention, when the ball valve is in a normal ventilation state, the large circular shaft rotates at a set speed under the driving action of the airflow. After the large circular shaft rotates, on the one hand, the filter element rotates at a set speed, and on the other hand, the two reciprocating frames can be reciprocated close to or reciprocated away from each other. By changing the spacing between the two reciprocating frames, the spacing between the two deformation frames is reciprocated, and finally the silicone part is reciprocated. Through the reciprocating deformation of the silicone part, on the one hand, the angle of the gas flowing through the filter holes on the filter element is reciprocated, thereby reducing the blockage rate of the filter element. On the other hand, the reciprocating deformation of the silicone part occurs, so that the impurities adhered to the outer wall of the silicone part can be deformed and detached, thereby achieving the self-cleaning effect of the impurities on the outer wall of the silicone part to maintain the service life of the filter element.

[0010] Based on the above technical solution, the present invention can also be improved as follows.

[0011] Furthermore, it also includes a mounting frame installed on the bottom surface of the valve tube, a single-chip microcomputer is installed on the mounting frame, a gas alarm is installed on the support plate, and the data end of the gas alarm is connected to the single-chip microcomputer data.

[0012] The beneficial effect of adopting the above further scheme is that the ball valve is mainly suitable for use in gas pipelines. When the device is installed on the gas pipeline and a gas leak occurs during use, the gas alarm automatically performs sound and light alarms and early warnings.

[0013] Furthermore, a transmission button is fixedly mounted on the transmission worm, a driven gear is mounted on the sleeve shaft, and the transmission worm is transmission-connected to the driven gear.

[0014] The beneficial effect of adopting the above further scheme is that when the ball valve is in use, the valve channel and the valve tube are coaxially arranged, the pressure control tube and the pressure relief hole on the blocking shaft are in a connected state, and after the two pressure relief holes are connected, the gas inside the sealing bag is fully emptied, and after the gas inside the sealing bag is emptied, it is then stored in the containing groove and avoids affecting the rotation of the ball valve; When the ball valve needs to be closed, the driving worm is driven to make the valve channel and the valve tube be staggered by 90°. After the valve channel and the valve tube are staggered by 90°, the valve tube is blocked. After the valve channel and the valve tube are staggered by 90°, the axes of the two sealing bags are in the same straight line with the axis of the valve tube. With the driving of the driving worm, the interiors of the two sealing bags are fully aired. After the interiors of the two sealing bags are aired, the connection between the valve ball and the valve tube is fully double-sealed, thereby reducing the leakage of the ball valve during operation. When the ball valve turns from an open state to a closed state, the first limit groove, the first limit block and the first torsion spring are arranged so that the valve channel can stop moving after rotating to a vertical position with the valve tube. As the transmission worm continues to drive, the second limit groove, the second limit block and the second torsion spring are arranged so that the pressure control tube and the pressure relief hole on the plugging shaft remain in a misaligned state, the pressure relief part on the pressure control tube is sealed, and the pump air pipe starts to inflate air into the sealing bag until the sealing bag completes the sealing operation on the valve tube. When the ball valve turns from a closed state to an open state, through the setting of the second limit groove, the second limit block and the second torsion spring, the pressure control tube and the pressure relief hole on the blocking shaft are first maintained in a connected state, and then the gas inside the sealing bag is emptied and the sealing bag is stored in the receiving groove. As the transmission worm continues to rotate, the valve channel is finally parallel to the valve tube.

[0015] Further, the air filter component includes two deformation frames and a pneumatic component installed on the air intake head, the pneumatic component is transmission-mounted with a reciprocating frame that can reciprocate along the axial direction of the valve tube and a rotatable large circular shaft, the large circular shaft is rotatably installed on the reciprocating frame, the inner wall of the reciprocating frame is rotatably installed with a filter element driven by the large circular shaft, the inner cavity of the filter element is connected to the valve tube, a reciprocating driving member is installed inside the reciprocating frame, and the reciprocating driving member is transmission-connected with two pressure frames with adjustable reciprocating spacing, each of the deformation frames is hinged with two connecting rods, the other ends of the two connecting rods are respectively hinged to the two pressure frames, each of the deformation frames is rotatably installed with an extrusion roller, the filter element is provided with a silicone portion, the silicone portion is provided with a plurality of filter holes, the extrusion roller is arranged on the inner side of the silicone portion, and the position of the silicone portion corresponds to the position of the extrusion roller.

[0016] The beneficial effect of adopting the above-mentioned further scheme is that when the ball valve is in a normal ventilation state, the large circular shaft rotates at a set speed under the driving action of the airflow. After the large circular shaft rotates, on the one hand, the filter element rotates at a set speed, and on the other hand, the two reciprocating frames can reciprocate towards or away from each other. By changing the spacing between the two reciprocating frames, the spacing between the two deformation frames is reciprocated, and finally the silicone part is reciprocated. Through the reciprocating deformation of the silicone part, on the one hand, the angle of the gas flowing through the filter holes on the filter element is reciprocated, thereby reducing the blockage rate of the filter element. On the other hand, the reciprocating deformation of the silicone part occurs, so that the impurities adhered to the outer wall of the silicone part can be deformed and detached, thereby achieving the self-cleaning effect of the impurities on the outer wall of the silicone part to maintain the service life of the filter element.

[0017] Furthermore, the pneumatic component includes a pneumatic shaft rotatably mounted on the air inlet head and a square shaft rotatably mounted on the valve tube. A group of pneumatic blades distributed in a circular array are installed on the pneumatic shaft and at a position corresponding to the inner side of the valve tube. The pneumatic shaft is transmission-connected to the square shaft via a second belt. A square groove with an opening at the tail end is fixedly opened inside the large circular shaft. The square groove is slidingly connected to the square shaft. The cross-sections of the square groove and the square shaft are both regular polygons. A vertical shaft is rotatably mounted on the valve tube. A bevel gear is installed on both the vertical shaft and the pneumatic shaft. The two bevel gears are meshed with each other. An eccentric wheel is installed on the vertical shaft. A limit wheel is rotatably mounted on the reciprocating frame. The eccentric wheel is transmission-compatible with the limit wheel. A limit spring that is limited by the valve tube is installed on the side of the reciprocating frame.

[0018] The beneficial effect of adopting the above further scheme is that when the ball valve is in a normal ventilation state, the pneumatic shaft rotates at a set speed. After the pneumatic shaft rotates, it drives the reciprocating frame to reciprocate within a set stroke. Through the reciprocating movement of the reciprocating frame, the filter element can reciprocate along the axial direction of the valve pipe. After the filter element reciprocates along the axial direction of the valve pipe, the solidification and adhesion rate of impurities in the gas on the outer surface of the filter element is effectively reduced, thereby improving the effect of improving the easy removal of impurities on the outer surface of the filter element.

[0019] Furthermore, the reciprocating drive member includes a screw rod rotatably mounted on a reciprocating frame, a third torsion spring is provided at the rotational connection between the screw rod and the reciprocating frame, a positive thread area and a negative thread area are symmetrically arranged on the screw rod, the positive thread area and the negative thread area are respectively connected to the two reciprocating frames in transmission, a pinion is provided on the screw rod, a half-face large gear is installed on the large circular shaft, the half-face large gear is connected to the pinion in transmission, and the radius of the half-face large gear is 7 to 11 times the radius of the pinion.

[0020] Furthermore, it also includes a small round shaft rotatably mounted on the reciprocating frame, the small round shaft is connected to the large round shaft through a third belt, a linkage gear is installed on the small round shaft and the filter element, and the two linkage gears are meshed with each other.

[0021] Furthermore, the entire arc of the first limiting groove and the second limiting groove is 90°, and the air inlet head and the exhaust head are both provided with flange connection surfaces.

[0022] Furthermore, the sealing capsule is made of wear-resistant rubber material, and grooves adapted to the sealing capsules are provided on the valve ball at positions corresponding to the two sealing capsules, and the axis of the groove is perpendicular to the axis of the valve channel.

[0023] Furthermore, a dirt storage cavity is provided on the inner wall of the valve tube and at a position corresponding to the position directly below the filter element, and a cover plate is installed on the valve tube and at a position corresponding to the dirt storage cavity.

[0024] The beneficial effect of adopting the above further solution is that, through the provision of the dirt storage chamber and the cover plate, it is easy to remove the dirt inside the dirt storage chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall structure of an intelligent early warning anti-leakage ball valve of the present invention; Figure 2 For the present invention Figure 1 A schematic diagram of the local enlarged structure at point A in the middle; Figure 3 For the present invention Figure 1 A schematic cross-sectional structure diagram of ; Figure 4 For the present invention Figure 3 A schematic diagram of the local enlarged structure at B in the middle; Figure 5 For the present invention Figure 3 A schematic diagram of the local enlarged structure at C in the middle; Figure 6 It is a schematic diagram of the structure of the air intake head and the pump air pipe of the present invention; Figure 7 It is a schematic diagram of the cross-sectional structure of the pressure control tube and the driving screw of the present invention; Figure 8 It is a schematic diagram of the structure of the torsion shaft and the blocking shaft of the present invention; Fig. 9 It is a schematic diagram of the structure of the pneumatic shaft and the filter element of the present invention; Fig.10 It is a structural schematic diagram of the driven gear and the valve shaft of the present invention; Fig.11 It is a schematic diagram of the structure of the large circular shaft and the connecting rod of the present invention.

[0026] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1. Valve pipe; 2. Inlet head; 3. Exhaust head; 4. Valve ball; 5. Valve channel; 6. Inflatable chamber; 7. Sealing bag; 8. Valve shaft; 9. Sleeve shaft; 10. First torsion spring; 11. First limit groove; 12. First limit block; 13. Pump air pipe; 14. Pressure control pipe; 15. Drive worm; 16. Drive screw; 17. Inflating piston; 18. One-way air intake valve; 19. Blocking shaft; 20. Pressure relief hole; 21. Second limit groove; 22. Second limit block; 23. Torsion shaft; 24. Second torsion spring; 25. An Mounting frame; 26. Gas alarm; 27. Single chip microcomputer; 28. Driven gear; 29. ​​Deformation frame; 30. Reciprocating frame; 31. Large round shaft; 32. Filter element; 33. Press frame; 34. Connecting rod; 35. Extrusion roller; 36. Silicone part; 37. Pneumatic shaft; 38. Square shaft; 39. Vertical shaft; 40. Eccentric wheel; 41. Limit wheel; 42. Limit spring; 43. Dirt chamber; 44. Screw; 45. Third torsion spring; 46. Small gear; 47. Half-face large gear; 48. Small round shaft; 49. Receiving groove. DETAILED DESCRIPTION

[0027] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0028] The present invention provides the following preferred embodiments like Figure 1-11 As shown, an intelligent early warning anti-leakage ball valve comprises a valve pipe 1, the valve pipe 1 is connected with an air inlet head 2 and an exhaust head 3 respectively, and the air inlet head 2 and the exhaust head 3 are both provided with flange connection surfaces; An air filter component is installed in the air intake head 2; The air filter component includes two deformation frames 29 and a pneumatic assembly installed on the air intake head 2. The pneumatic assembly is provided with a reciprocating frame 30 that can reciprocate along the axis of the valve tube 1 and a rotatable large circular shaft 31. The large circular shaft 31 is rotatably installed on the reciprocating frame 30. The pneumatic assembly includes a pneumatic shaft 37 rotatably mounted on the air inlet head 2 and a square shaft 38 rotatably mounted on the valve tube 1. A group of pneumatic blades distributed in a circumferential array are mounted on the pneumatic shaft 37 and at positions corresponding to the inner side of the valve tube 1. The pneumatic shaft 37 is connected to the square shaft 38 through a second belt. A square groove with an opening at the rear end is fixedly provided inside the large circular shaft 31, and the square groove is slidably connected to the square shaft 38, and the cross sections of the square groove and the square shaft 38 are both regular polygons; A vertical shaft 39 is rotatably mounted on the valve tube 1, and a bevel gear is mounted on both the vertical shaft 39 and the pneumatic shaft 37. The two bevel gears are meshed with each other. An eccentric wheel 40 is mounted on the vertical shaft 39, and a limit wheel 41 is rotatably mounted on the reciprocating frame 30. The eccentric wheel 40 is adapted for transmission with the limit wheel 41, and a limit spring 42 that is limited by the valve tube 1 is mounted on the side of the reciprocating frame 30.

[0029] When the ball valve is in a normal ventilation state, the pneumatic shaft 37 rotates at a set speed. After the pneumatic shaft 37 rotates, it drives the reciprocating frame 30 to reciprocate within a set stroke. Through the reciprocating movement of the reciprocating frame 30, the filter element 32 can reciprocate along the axial direction of the valve pipe 1. After the filter element 32 reciprocates along the axial direction of the valve pipe 1, the solidification and adhesion rate of impurities in the gas on the outer surface of the filter element 32 is effectively reduced, thereby improving the effect of improving the easy removal of impurities on the outer surface of the filter element 32.

[0030] A filter element 32 driven by a large circular shaft 31 is rotatably mounted on the inner wall of the reciprocating frame 30, and the inner cavity of the filter element 32 is communicated with the valve pipe 1; It also includes a small round shaft 48 rotatably mounted on the reciprocating frame 30, the small round shaft 48 is connected to the large round shaft 31 through a third belt, and a linkage gear is installed on the small round shaft 48 and the filter element 32, and the two linkage gears are meshed with each other; A reciprocating drive member is installed inside the reciprocating frame 30, and two reciprocating pressure frames 33 with adjustable spacing are connected to the reciprocating drive member. The reciprocating drive member includes a screw rod 44 rotatably mounted on the reciprocating frame 30, a third torsion spring 45 is provided at the rotation connection between the screw rod 44 and the reciprocating frame 30, a positive thread area and a negative thread area are symmetrically arranged on the screw rod 44, the positive thread area and the negative thread area are respectively connected to the two reciprocating frames 30 by transmission, a pinion 46 is provided on the screw rod 44, a half-face large gear 47 is installed on the large circular shaft 31, the half-face large gear 47 is connected to the pinion 46 by transmission, and the radius of the half-face large gear 47 is 10 times the radius of the pinion 46; Two connecting rods 34 are hinged on each deformation frame 29, and the other ends of the two connecting rods 34 are hinged to the two pressure frames 33 respectively. An extrusion roller 35 is rotatably mounted on each deformation frame 29. A silicone portion 36 is provided on the filter element 32, and a plurality of filter holes are provided on the silicone portion 36. The extrusion roller 35 is arranged on the inner side of the silicone portion 36, and the position of the silicone portion 36 corresponds to the position of the extrusion roller 35.

[0031] When the ball valve is in a normal ventilation state, the large circular shaft 31 rotates at a set speed under the driving action of the airflow. After the large circular shaft 31 rotates, on the one hand, the filter element 32 rotates at a set speed, and on the other hand, the two reciprocating frames 30 can reciprocate towards or away from each other. By changing the spacing between the two reciprocating frames 30, the spacing between the two deformation frames 29 is reciprocatingly changed, and finally the silicone portion 36 is reciprocatedly deformed. Through the reciprocating deformation of the silicone portion 36, on the one hand, the angle of the filter hole on the filter element 32 through which the gas flows is reciprocatedly changed, thereby reducing the blockage rate of the filter element 32. On the other hand, through the reciprocating deformation of the silicone portion 36, the impurities adhered to the outer wall of the silicone portion 36 can be deformed and detached, thereby achieving the self-cleaning effect of the impurities on the outer wall of the silicone portion 36 to maintain the service life of the filter element 32.

[0032] A valve ball 4 is arranged in the valve tube 1. A valve channel 5 with two ends opened and an air-filling cavity 6 are respectively provided inside the valve ball 4. Two symmetrically arranged sealing capsules 7 are installed on the valve ball 4. The inner cavities of the two sealing capsules 7 are both connected to the air-filling cavity 6. The sealing capsule 7 is made of wear-resistant rubber material. The valve ball 4 is provided with grooves 49 adapted to the sealing capsule 7 at positions corresponding to the two sealing capsules 7. The axis of the groove 49 is perpendicular to the axis of the valve channel 5. A valve shaft 8 is installed on the top of the valve ball 4, and the valve shaft 8 is rotatably connected to the valve pipe 1. A sleeve shaft 9 is rotatably sleeved on the valve shaft 8, and a first torsion spring 10 is installed between the sleeve shaft 9 and the valve shaft 8. A first limiting groove 11 is opened on the valve pipe 1, and a first limiting block 12 slidably connected to the first limiting groove 11 is fixedly installed on the sleeve shaft 9. A support plate, a pump air pipe 13 and a pressure control pipe 14 are respectively installed on the valve pipe 1. A transmission worm 15 is rotatably installed on the support plate, and the sleeve shaft 9 is driven by the transmission worm 15; A transmission button is fixedly mounted on the transmission worm 15, a driven gear 28 is mounted on the sleeve shaft 9, and the transmission worm 15 is transmission-connected with the driven gear 28; A driving screw 16 is rotatably mounted inside the pump air pipe 13, and a gas-inflating piston 17 is rotatably mounted on the driving screw 16. The gas-inflating piston 17 is slidably connected to the pump air pipe 13; The inner cavity of the pump air pipe 13 is connected to the pressure control pipe 14 through a one-way air outlet valve, and the bottom of the pump air pipe 13 is connected to a one-way air inlet valve 18. The other end of the pressure control pipe 14 is rotatably connected to the inflation chamber 6. A blocking shaft 19 is rotatably installed inside the pressure control pipe 14. A pressure relief hole 20 is provided on the blocking shaft 19 and the pressure control pipe 14. The pressure relief hole 20 on the blocking shaft 19 is connected to the inner cavity of the pressure control pipe 14. A second limiting groove 21 is formed on the pressure control tube 14, and a second limiting block 22 slidably connected to the second limiting groove 21 is installed on the blocking shaft 19; The full arc of the first limiting groove 11 and the second limiting groove 21 are both 90°; A torsion shaft 23 is rotatably mounted on the blocking shaft 19, a second torsion spring 24 is mounted between the torsion shaft 23 and the blocking shaft 19, a first belt is transmission-mounted on the torsion shaft 23, and both the sleeve shaft 9 and the driving screw 16 are transmission-connected to the first belt.

[0033] It also includes a mounting frame 25 installed on the bottom surface of the valve tube 1, a single chip microcomputer 27 is installed on the mounting frame 25, a gas alarm 26 is installed on the support plate, and the data end of the gas alarm 26 is connected to the single chip microcomputer 27.

[0034] The ball valve is mainly suitable for use in gas pipelines. When the device is installed on a gas pipeline and a gas leak occurs during use, the gas alarm 26 automatically performs an audible and visual alarm and early warning.

[0035] When the ball valve is in use, the valve channel 5 is coaxially arranged with the valve tube 1, and the pressure control tube 14 and the pressure relief hole 20 on the blocking shaft 19 are in a connected state. After the two pressure relief holes 20 are connected, the gas inside the sealing bag 7 is fully emptied. After the gas inside the sealing bag 7 is emptied, it is then stored in the containing groove 49 and avoids affecting the rotation of the ball valve. When the ball valve needs to be closed, the driving worm 15 is driven to make the valve channel 5 and the valve tube 1 offset by 90°. After the valve channel 5 and the valve tube 1 are offset by 90°, the valve tube 1 is blocked. After the valve channel 5 and the valve tube are offset by 190°, the axes of the two sealing bags 7 are in the same straight line as the axis of the valve tube 1. With the driving of the driving worm 15, the interiors of the two sealing bags 7 are fully inflated. After the interiors of the two sealing bags 7 are inflated, the connection between the valve ball 4 and the valve tube 1 is fully double-sealed, thereby reducing the leakage of the ball valve during operation. When the ball valve turns from an open state to a closed state, the first limiting groove 11, the first limiting block 12 and the first torsion spring 10 are arranged so that the valve channel 5 can stop moving after rotating to a vertical position with the valve tube 1. As the transmission worm 15 continues to drive, the second limiting groove 21, the second limiting block 22 and the second torsion spring 24 are arranged so that the pressure control tube 14 and the pressure relief hole 20 on the blocking shaft 19 are kept in a misaligned state, the pressure relief part on the pressure control tube 14 is sealed, and the pump air pipe 13 starts to inflate air into the sealing bag 7 until the sealing bag 7 completes the sealing operation on the valve tube 1. When the ball valve turns from a closed state to an open state, through the setting of the second limit groove 21, the second limit block 22 and the second torsion spring 24, the pressure control tube 14 and the pressure relief hole 20 on the blocking shaft 19 are first maintained in a connected state, and then the gas inside the sealing bag 7 is emptied, and the sealing bag 7 is received in the receiving groove 49. As the transmission worm 15 continues to rotate, the valve channel 5 is finally parallel to the valve tube 1.

[0036] A dirt storage cavity 43 is formed on the inner wall of the valve tube 1 and corresponds to a position directly below the filter element 32 . A cover plate is installed on the valve tube 1 and corresponds to a position of the dirt storage cavity 43 .

[0037] The dirt storage chamber 43 and the cover plate are arranged to facilitate the removal of dirt inside the dirt storage chamber 43 .

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An intelligent early warning anti-leakage ball valve, comprising a valve tube (1), wherein the valve tube (1) is respectively connected to an air inlet head (2) and an air outlet head (3), characterized in that: An air filter component is installed in the air inlet head (2), a valve ball (4) is installed in the valve tube (1), a valve channel (5) with two ends open and an air filling chamber (6) are respectively provided inside the valve ball (4), two symmetrically arranged sealing bags (7) are installed on the valve ball (4), the inner chambers of the two sealing bags (7) are connected to the air filling chamber (6), a valve shaft (8) is installed at the top end of the valve ball (4), the valve shaft (8) is rotatably connected to the valve tube (1), a sleeve shaft (9) is rotatably sleeved on the valve shaft (8), and the sleeve shaft (9) is connected to the valve shaft (8), a first torsion spring (10) is installed between the valve tube (1), a first limiting groove (11) is opened on the valve tube (1), a first limiting block (12) slidably connected to the first limiting groove (11) is fixedly installed on the sleeve shaft (9), a support plate, a pump air pipe (13) and a pressure control pipe (14) are respectively installed on the valve tube (1), a transmission worm (15) is rotatably installed on the support plate, the sleeve shaft (9) is driven by the transmission worm (15), a driving screw (16) is rotatably installed inside the pump air pipe (13), and the driving screw ( The inflating piston (17) is installed on the upper transmission of the inflating piston (16), and the inflating piston (17) is slidably connected to the pump air pipe (13). The inner cavity of the pump air pipe (13) is connected to the pressure control pipe (14) through a one-way air outlet valve. The bottom of the pump air pipe (13) is connected to a one-way air inlet valve (18). The other end of the pressure control pipe (14) is rotatably connected to the inflation chamber (6). A blocking shaft (19) is rotatably installed inside the pressure control pipe (14). A pressure relief hole (20) is provided on the blocking shaft (19) and the pressure control pipe (14). The blocking shaft (19) is connected to the pressure control pipe (14). 9) is connected to the inner cavity of the pressure control tube (14), the pressure control tube (14) is provided with a second limit groove (21), the blocking shaft (19) is provided with a second limit block (22) slidably connected to the second limit groove (21), a torsion shaft (23) is rotatably installed on the blocking shaft (19), a second torsion spring (24) is installed between the torsion shaft (23) and the blocking shaft (19), a first belt is transmission-installed on the torsion shaft (23), and the sleeve shaft (9) and the driving screw (16) are both transmission-connected to the first belt.

2. The intelligent early warning anti-leakage ball valve according to claim 1 is characterized in that: It also includes a mounting frame (25) mounted on the bottom surface of the valve tube (1), a single-chip computer (27) being mounted on the mounting frame (25), a gas alarm (26) being mounted on the support plate, and a data terminal of the gas alarm (26) being data-connected to the single-chip computer (27).

3. The intelligent early warning anti-leakage ball valve according to claim 1 is characterized in that: A transmission button is fixedly mounted on the transmission worm (15), a driven gear (28) is mounted on the sleeve shaft (9), and the transmission worm (15) is transmission-connected to the driven gear (28).

4. The intelligent early warning anti-leakage ball valve according to claim 1 is characterized in that: The air filter component comprises two deformation frames (29) and a pneumatic assembly mounted on the air inlet head (2); a reciprocating frame (30) that can reciprocate along the axial direction of the valve tube (1) and a rotatable large circular shaft (31) are rotatably mounted on the pneumatic assembly; the large circular shaft (31) is rotatably mounted on the reciprocating frame (30); a filter element (32) driven by the large circular shaft (31) is rotatably mounted on the inner wall of the reciprocating frame (30); the inner cavity of the filter element (32) is communicated with the valve tube (1); a reciprocating drive member is mounted inside the reciprocating frame (30); the reciprocating drive member is The component is transmission-connected to two pressure frames (33) with reciprocating adjustable spacing, each of the deformation frames (29) is hinged with two connecting rods (34), the other ends of the two connecting rods (34) are respectively hinged with the two pressure frames (33), and each of the deformation frames (29) is rotatably mounted with an extrusion roller (35), the filter element (32) is provided with a silicone portion (36), the silicone portion (36) is provided with a plurality of groups of filter holes, and the extrusion roller (35) is arranged on the inner side of the silicone portion (36), and the position of the silicone portion (36) corresponds to the position of the extrusion roller (35).

5. The intelligent early warning anti-leakage ball valve according to claim 4 is characterized in that: The pneumatic assembly comprises a pneumatic shaft (37) rotatably mounted on the air inlet head (2) and a square shaft (38) rotatably mounted on the valve tube (1); a group of pneumatic blades distributed in a circumferential array are mounted on the pneumatic shaft (37) at positions corresponding to the inner side of the valve tube (1); the pneumatic shaft (37) is transmission-connected to the square shaft (38) via a second belt; a square groove with an opening at the rear end is fixedly provided inside the large circular shaft (31); the square groove is slidably connected to the square shaft (38); the square groove and the square shaft (38) are transversely connected to each other. The cross-sections are all regular polygons. A vertical shaft (39) is rotatably mounted on the valve tube (1). A bevel gear is mounted on the vertical shaft (39) and the pneumatic shaft (37). The two bevel gears are meshed with each other. An eccentric wheel (40) is rotatably mounted on the reciprocating frame (30). A limiting wheel (41) is rotatably mounted on the reciprocating frame (30). The eccentric wheel (40) is adapted for transmission with the limiting wheel (41). A limiting spring (42) is mounted on the side of the reciprocating frame (30) and is limited by the valve tube (1).

6. The intelligent early warning anti-leakage ball valve according to claim 1 is characterized in that: The reciprocating drive member comprises a screw rod (44) rotatably mounted on the reciprocating frame (30); a third torsion spring (45) is provided at a rotational connection between the screw rod (44) and the reciprocating frame (30); a positive thread area and a negative thread area are symmetrically arranged on the screw rod (44); the positive thread area and the negative thread area are respectively transmission-connected to the two reciprocating frames (30); a pinion gear (46) is provided on the screw rod (44); a half-face large gear (47) is mounted on the large circular shaft (31); the half-face large gear (47) is transmission-connected to the pinion gear (46); and a radius of the half-face large gear (47) is 7 to 11 times the radius of the pinion gear (46).

7. The intelligent early warning anti-leakage ball valve according to claim 1 is characterized in that: It also includes a small circular shaft (48) rotatably mounted on the reciprocating frame (30), the small circular shaft (48) being transmission-connected to the large circular shaft (31) via a third belt, and a linkage gear being mounted on both the small circular shaft (48) and the filter element (32), the two linkage gears being meshed with each other.

8. The intelligent early warning anti-leakage ball valve according to claim 1 is characterized in that: The first limiting groove (11) and the second limiting groove (21) both have an entire arc of 90°, and the air inlet head (2) and the air outlet head (3) are both provided with flange connection surfaces.

9. The intelligent early warning anti-leakage ball valve according to claim 1, characterized in that: The sealing capsule (7) is made of wear-resistant rubber material. A receiving groove (49) adapted to the sealing capsule (7) is provided on the valve ball (4) at positions corresponding to the two sealing capsules (7). The axis of the receiving groove (49) is perpendicular to the axis of the valve channel (5).

10. The intelligent early warning anti-leakage ball valve according to claim 1, characterized in that: A dirt accumulation cavity (43) is provided on the inner wall of the valve tube (1) at a position corresponding to the bottom of the filter element (32), and a cover plate is installed on the valve tube (1) at a position corresponding to the dirt accumulation cavity (43).

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