An intelligent control ball valve

Abstract

The present invention relates to the field of ball valves, and specifically discloses an intelligent control ball valve, including a valve body, a transmission mechanism, a ball core mechanism and an actuator, wherein the actuator is installed at the top of the transmission mechanism, and the bottom of the transmission mechanism is connected to the ball core mechanism, the interior of the valve body is provided with a communicating flow groove, the middle of the flow groove is provided with an expansion portion, and the top of the valve body is provided with a through hole, the transmission mechanism is installed on the inner side of the through hole, the ball core mechanism is located in the middle of the flow groove, and the ball core mechanism is used to open and close the flow groove. Compared with the traditional rotating ball valve core, the valve core of the present invention is an opening and closing hemisphere, which blocks the flow groove by the hemisphere, and is combined with the filter push plate ejected from the upper end face and the inner sealing plate to realize four blocking interfaces. The blocking effect of the ball valve is excellent. When the valve core is closed, the rotating plate rotates to a fixed position under the action of magnetic coupling. If there is a liquid leak, it will squeeze its rotation, so that the leak is detected, and the leakage in the valve body can be detected.

Description

Technical Field

[0001] The invention relates to the field of ball valves, and more particularly to an intelligent control ball valve. Background Art

[0002] A ball valve is a valve whose opening and closing part (ball) is driven by the valve stem and rotates around the axis of the ball valve. It can also be used for fluid regulation and control.

[0003] Ball valves are widely used in oil refining, long-distance pipelines, chemical industry, papermaking, pharmaceuticals, water conservancy, electric power, municipal administration, steel and other industries, and they play an important role in the national economy.

[0004] The valve core is the main sealing part of the ball valve, and its sealing performance determines the opening and closing effect of the valve body. After long-term use, the sealing effect of the valve core will deteriorate, which will cause leakage. The leakage in the valve body is not easy to detect. Failure to detect the leakage in the valve body in time and replace the valve body quickly will cause continuous leakage of the sealing material, resulting in waste and hidden dangers. Summary of the invention

[0005] The present invention provides an intelligent control ball valve, which solves the technical problems in the related art that damage of a valve core part in a valve body is difficult to detect and the valve body can be replaced after the damage is detected.

[0006] According to one aspect of the present invention, there is provided an intelligent control ball valve, comprising a valve body, a transmission mechanism, a ball core mechanism and an actuator, wherein the actuator is mounted on the top of the transmission mechanism, and the bottom of the transmission mechanism is connected to the ball core mechanism, the valve body is provided with a communicating flow groove inside, an expansion portion is provided in the middle of the flow groove, and a through hole is opened at the top of the valve body, the transmission mechanism is mounted on the inner side of the through hole, the ball core mechanism is located in the middle of the flow groove, and the ball core mechanism is used to open and close the flow groove;

[0007] The ball core mechanism includes a ball, a push-off unit and a sealing ring. The ball includes two hemispheres, and the two hemispheres are arranged opposite to each other. The push-off unit is located between the opposite sides of the two hemispheres. The sealing ring is located outside the expansion portion. The push-off unit drives the two hemispheres to move toward each other along the groove direction of the flow groove and seals the inner side of the flow groove.

[0008] The end of the sphere is connected to a filter push plate unit, both ends of the valve body are equipped with connecting mechanisms, and an inner sealing plate is installed inside the connecting mechanism. When the push-open unit drives the two hemispheres to move toward each other along the groove direction of the flow groove, the hemispheres drive the filter push plate unit to abut and connect with the end face of the inner sealing plate to block the end of the flow groove.

[0009] Furthermore: the push-open unit includes a rotating blade, an outer blade and a rotating shaft, the rotating blade is installed on both sides of the rotating shaft, and the rotating shaft is inserted into the middle of the outer blade, and a rotating groove is provided in the middle of the outer blade. The rotating blade rotates around the rotating shaft and forms an angle with the outer blade.

[0010] Furthermore: support springs are vertically installed on both sides of the outer blade, and both ends of the support springs are respectively connected to the inner side walls of the two hemispheres.

[0011] Further: the filter push plate unit includes a push plate member, a connecting block, a fixed rod and a matching seat, the connecting block is installed in the middle of one side of the push plate member, the matching seat is installed at the rod end of the fixed rod, and a slot is provided on the inner side of the matching seat, the connecting block is inserted into the slot along a direction perpendicular to the axial direction of the fixed rod, and the end of the fixed rod away from the matching seat is installed on the outer wall of the hemisphere.

[0012] Furthermore: an annular groove is formed on the push plate, and a filter screen is provided at one end of the push plate away from the ball core mechanism.

[0013] Further: the connecting mechanism includes a sleeve flange, a locking ring, a locking screw ring and a connecting screw ring, the locking ring is installed at the end of the sleeve flange, and the sleeve flange is connected to the pipe end installed at one end of the ball valve, the connecting screw ring is arranged on the outer edge of the end of the valve body, and the locking screw ring is connected to the outer walls of the locking ring and the connecting screw ring through threads, and the ends of the locking ring and the connecting screw ring are abutted against each other.

[0014] Furthermore: the inner sealing plate is arranged on the inner edge of the locking ring, and the end of the locking ring close to the sleeve flange is a closing structure, and when the locking screw sleeve is threadedly stepped toward one side of the locking ring, the inner diameter of the locking ring decreases gradually.

[0015] Furthermore, a circle of protrusions is provided on the outer wall of the inner sealing plate, and a through hole is opened in the middle of the inner sealing plate. When the filter push plate unit is abutted against the end surface of the inner sealing plate, the protrusions are pressed into the groove wall of the annular groove.

[0016] Further: the transmission mechanism includes a connecting rod, a passive sleeve and a sliding pin, the bottom end of the connecting rod is connected to the shaft end of the rotating shaft, and the passive sleeve is arranged on the outer wall of the connecting rod, the passive sleeve is fixedly connected to the inner wall of the valve body, the sliding pin is vertically installed on one side outer wall of the connecting rod, and the sliding pin is slidably connected to the sliding groove in the inner wall of the passive sleeve, when the connecting rod rotates around its axis, the sliding pin slides along the sliding groove, and drives the transmission mechanism and the ball core mechanism connected thereto to move along the axial direction of the connecting rod.

[0017] Furthermore: a flow rate detection mechanism is installed on the bottom side wall of the valve body, and the flow rate detection mechanism includes a rotating plate, a magnetic block and a speed sensor. The sensing end of the speed sensor is connected to the axis of the rotating plate through an axis, and the magnetic block is respectively arranged on the lower side of the rotating plate and the bottom side wall of the valve body. The magnetic blocks on the bottom side wall of the valve body are a group of positive poles and a group of negative poles, and the two groups of magnetic blocks are distributed in a cross shape. A group of magnetic blocks located on the rotating plate is a positive pole or a negative pole, and the rotating plate has a Z-shaped structure. When the ball core mechanism does not block the flow groove, the flow rate detection mechanism is used to detect the flow rate of the liquid passing through the flow groove. When the ball core mechanism blocks the flow groove, the flow rate detection mechanism is used to detect whether there is water leakage in the expansion part of the valve body.

[0018] Furthermore: a lower pressing piece extends from the bottom end of the outer blade, and the lower pressing piece is located above the rotating plate, and a notch is opened in the middle of the lower pressing piece, and the width of the notch is consistent with the height of the rotating plate.

[0019] The beneficial effects of the present invention are:

[0020] Compared with the traditional rotating spherical valve core, the valve core of this ball valve is an opening and closing hemisphere. The flow groove is blocked by the hemisphere, and the filter push plate and the inner sealing plate ejected from the upper end face are combined to realize four blocking interfaces. The blocking effect of the ball valve is excellent. At the same time, when the valve core is closed, the rotating plate rotates to a fixed position under the action of magnetic coupling. If there is liquid leakage, it will squeeze it to rotate, so that the leakage can be detected, and the leakage in the valve body can be intuitively detected;

[0021] At the same time, when replacing the valve body, the filter push plate pushed out by the screw sleeve ring locks and combines with the inner sealing plate to form a sealing interface, so that the valve body can be replaced without stopping the flow of the entire pipeline liquid. Both sides of the valve body are connected with plug-in connectors, which can be screwed into the screw sleeve after conversion, making disassembly and assembly convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional structural schematic diagram of an intelligent control ball valve proposed by the present invention;

[0023] Figure 2 It is a partial assembly diagram of an intelligent control ball valve proposed by the present invention;

[0024] Figure 3 It is a front cross-sectional view of an intelligent control ball valve proposed by the present invention without an actuator;

[0025] Figure 4 It is a schematic diagram of the ball core mechanism structure of an intelligent control ball valve proposed by the present invention;

[0026] Figure 5 yes Figure 4 Disassembly diagram of

[0027] Figure 6It is a schematic diagram of disassembly and assembly of a matching seat and a connecting block of an intelligent control ball valve proposed by the present invention;

[0028] Figure 7 It is a structural schematic diagram of a flow rate detection mechanism of an intelligent control ball valve proposed by the present invention.

[0029] In the figure: 100, valve body; 200, connecting mechanism; 210, sleeve flange; 220, locking ring; 230, inner sealing plate; 240, locking screw collar; 250, connecting screw collar; 260, filter push plate unit; 261, filter; 262, push plate member; 263, connecting block; 300, actuator; 400, transmission mechanism; 410, connecting rod; 420, passive shaft sleeve; 430, sliding pin; 500, seal Sealing seat; 600, ball core mechanism; 610, sphere; 611, inner abutment groove; 620, matching ring; 630, fixing rod; 640, matching seat; 650, abutment unit; 651, rotating blade; 652, outer blade; 653, rotating shaft; 654, supporting spring; 660, lower pressing piece; 700, flow rate detection mechanism; 710, rotation speed sensor; 720, magnetic block; 730, rotating plate; 800, sealing ring. DETAILED DESCRIPTION

[0030] The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that the discussion of these embodiments is only to enable those skilled in the art to better understand and implement the subject matter described herein, and is not a limitation of the scope of protection, applicability or examples set forth in the claims. The functions and arrangements of the elements discussed may be changed without departing from the scope of protection of the contents of this specification. Various examples may omit, replace or add various processes or components as needed. In addition, the features described relative to some examples may also be combined in other examples.

[0031] Embodiment 1

[0032] See also Figure 1-Figure 7 As shown, an intelligent control ball valve includes a valve body 100, a transmission mechanism 400, a ball core mechanism 600 and an actuator 300, wherein the actuator 300 is mounted on the top of the transmission mechanism 400, and the bottom of the transmission mechanism 400 is connected to the ball core mechanism 600, a through flow groove is provided inside the valve body 100, an expansion portion is provided in the middle of the flow groove, and a through hole is opened at the top of the valve body 100, the transmission mechanism 400 is mounted on the inner side of the through hole, the ball core mechanism 600 is located in the middle of the flow groove, and the ball core mechanism 600 is used to open and close the flow groove;

[0033] It should be supplemented that a sealing seat 500 is installed in the top through hole of the valve body 100, and the transmission mechanism 400 is inserted into the inner wall of the sealing seat 500. The sealing seat 500 is used to block the top through hole of the valve body 100;

[0034] The ball core mechanism 600 includes a ball 610, a resisting unit 650 and a sealing ring 800. The ball 610 includes two hemispheres 610, and the two hemispheres 610 are arranged opposite to each other. The resisting unit 650 is located between the opposite sides of the two hemispheres 610. The sealing ring 800 is located outside the expansion part. The resisting unit 650 drives the two hemispheres 610 to move toward each other along the groove direction of the flow groove and blocks the inner side of the flow groove.

[0035] The end of the sphere 610 is connected to a filter push plate unit 260, and connecting mechanisms 200 are installed at both ends of the valve body 100, and an inner sealing plate 230 is installed inside the connecting mechanism 200. When the abutting unit 650 drives the two hemispheres 610 to move toward each other along the groove direction of the flow groove, the hemispheres 610 drive the filter push plate unit 260 to abut and connect with the end face of the inner sealing plate 230 to block the end of the flow groove.

[0036] The push-open unit 650 includes a rotating blade 651, an outer blade 652 and a rotating shaft 653. The rotating blade 651 is installed on both sides of the rotating shaft 653, and the rotating shaft 653 is inserted into the middle of the outer blade 652. A rotating groove is provided in the middle of the outer blade 652. The rotating blade 651 rotates around the rotating shaft 653 and forms an angle with the outer blade 652.

[0037] Support springs 654 are vertically installed on both sides of the outer blade 652 , and both ends of the support spring 654 are connected to the inner side walls of the two hemispheres 610 respectively.

[0038] The filter push plate unit 260 includes a push plate member 262, a connecting block 263, a fixed rod 630 and a matching seat 640. The connecting block 263 is installed in the middle of one side of the push plate member 262, the matching seat 640 is installed at the rod end of the fixed rod 630, and a slot is provided on the inner side of the matching seat 640. The connecting block 263 is inserted into the slot along a direction perpendicular to the axial direction of the fixed rod 630, and the end of the fixed rod 630 away from the matching seat 640 is installed on the outer wall of the hemisphere 610.

[0039] An annular groove is formed on the push plate 262 , and a filter screen 261 is provided at one end of the push plate 262 away from the ball core mechanism 600 .

[0040] The connecting mechanism 200 includes a sleeve flange 210, a locking ring 220, a locking screw ring 240 and a connecting screw ring 250. The locking ring 220 is installed at the end of the sleeve flange 210, and the sleeve flange 210 is connected to the pipe end installed at one end of the ball valve. The connecting screw ring 250 is arranged on the outer edge of the end of the valve body 100, and the locking screw ring 240 is threadedly connected to the outer walls of the locking ring 220 and the connecting screw ring 250, and the ends of the locking ring 220 and the connecting screw ring 250 are abutted against each other.

[0041] The inner sealing plate 230 is arranged on the inner edge of the locking ring 220, and the end of the locking ring 220 close to the sleeve flange 210 is a closed structure. When the locking screw ring 240 is threadedly stepped toward one side of the locking ring 220, the inner diameter of the locking ring 220 decreases.

[0042] The outer wall of the inner sealing plate 230 is provided with a circle of protrusions, and a through hole is opened in the middle of the inner sealing plate 230. When the filter push plate unit 260 is abutted against the end surface of the inner sealing plate 230, the protrusions are pressed into the groove wall of the annular groove.

[0043] The transmission mechanism 400 includes a connecting rod 410, a passive sleeve 420 and a sliding pin 430. The bottom end of the connecting rod 410 is connected to the axial end of the rotating shaft 653, and the passive sleeve 420 is arranged on the outer wall of the connecting rod 410. The passive sleeve 420 is fixedly connected to the inner wall of the valve body 100. The sliding pin 430 is vertically installed on one side outer wall of the connecting rod 410, and the sliding pin 430 is slidingly connected to the sliding groove in the inner wall of the passive sleeve 420. When the connecting rod 410 rotates around its axis, the sliding pin 430 slides along the sliding groove and drives the transmission mechanism 400 and the ball core mechanism 600 connected thereto to move along the axial direction of the connecting rod 410.

[0044] A flow rate detection mechanism 700 is installed on the bottom side wall of the valve body 100. The flow rate detection mechanism 700 includes a rotating plate 730, a magnetic block 720 and a speed sensor 710. The sensing end of the speed sensor 710 is connected to the axis of the rotating plate 730 through an axis. The magnetic block 720 is respectively arranged on the lower side of the rotating plate 730 and the bottom side wall of the valve body 100. The magnetic blocks 720 on the bottom side wall of the valve body 100 are a group of positive poles and a group of negative poles, and the two groups of magnetic blocks 720 are distributed in a cross shape. One group of magnetic blocks 720 located on the rotating plate 730 is a positive pole or a negative pole. The rotating plate 730 has a Z-shaped structure. When the ball core mechanism 600 does not block the flow groove, the flow rate detection mechanism 700 is used to detect the flow rate of the liquid passing through the flow groove. When the ball core mechanism 600 blocks the flow groove, the flow rate detection mechanism 700 is used to detect whether there is water leakage in the expansion part of the valve body 100.

[0045] A lower pressing piece 660 extends from the bottom end of the outer blade 652 , and the lower pressing piece 660 is located above the rotating plate 730 . A notch is opened in the middle of the lower pressing piece 660 , and the width of the notch is consistent with the height of the rotating plate 730 .

[0046] The ball valve is used to cut off and control the flow of fluid through the pipeline. The sleeve flanges 210 on both sides are connected to the outer wall of the pipeline. The connection methods such as gluing and hot-melt welding can be used. The entire valve body 100 assembly is then installed using the connecting mechanism 200. The existing ball valve controls the opening and closing by rotating the valve core through the actuator 300. The ball core inside the ball valve is used for a long time, and the aging of the ball core causes leakage. The leakage detection of the ball core is difficult. At the same time, after the valve body 100 fault is detected, the entire pipeline circulation needs to be closed, or the pipeline in circulation needs to be directly connected, which is not conducive to the assembly of the new valve body 100. The ball valve can solve the above problems. The specific operation process is as follows:

[0047] When in use, the actuator 300 is a driving member, which can drive the connecting rod 410 to rotate. When the connecting rod 410 rotates, the sliding pin 430 thereon will move along the sliding groove on the passive shaft sleeve 420, that is, there is a downward movement state, so that the ball core mechanism 600 moves downward as a whole, and the lower pressing piece 660 of the push-open unit 650 is pressed on the rotating plate 730;

[0048] When the hemispherical bodies 610 on both sides block the flow slot, the rotating plate 730 is unpowered. Under the magnetic force of the magnetic block 720, the rotating plate 730 is reset to a position of 90 degrees with the lower pressing plate 660 to monitor whether there is leakage of liquid into the expansion part;

[0049] The connecting rod 410 rotates, which drives the rotating shaft 653 to rotate. The rotating blade 651 on the rotating shaft 653 deviates from the plane where the outer blade is located to form an angle. The outer edge of the rotating blade 651 abuts against the inner abutment groove 611 of the hemispherical body 610, realizing the separation of the connection interface of the hemispherical body 610. When the rotating blade 651 and the outer blade 652 are 90 degrees apart, the outer walls of the hemispherical body 610 on both sides abut against the inner edge of the sealing ring 800. At the same time, the matching ring 620 on the hemispherical body 610 is squeezed on the outer edge of the connection between the hemispherical body 610 and the sealing ring 800, realizing the blocking of both sides of the expansion part of the valve body 100, that is, blocking the flow of the flow groove.

[0050] When the hemispherical body 610 moves to both sides, the fixed rod 630 drives the push plate 262 at its end to move toward the inner sealing plate 230. When the push plate 262 is in contact with the end surface of the inner sealing plate 230, the protrusion is pressed into the groove wall of the annular groove to achieve the blocking of the filter screen, that is, the push plate 262 and the inner sealing plate 230 are integrated at this time to achieve the blocking of the end of the valve body 100. When the actuator 300 closes the valve body 100, there are four blocking interfaces, which effectively ensures the sealing of the valve body 100.

[0051] When the valve body 100 is opened, the actuator 300 reverses, driving the entire ball core mechanism 600 to move toward the center and upward, the hemispherical body 610 is pulled back toward the center under the action of the support spring 654, and the sliding pin 430 on the connecting rod 410 slides along the slide groove and rises upward. At this time, the flow groove is connected, and the liquid flows through the separated inner sealing plate 230 and the push plate 262. During the circulation, it is also filtered by the filter screen 261. The liquid passes under the ball core mechanism 600, and the flowing liquid drives the rotating plate 730 to rotate. The speed sensor 710 detects the rotation of the rotating plate 730, and the flow rate can be calculated by the speed and the circulation time.

[0052] If there is leakage in the plugging at one end, the liquid will overflow through the connection between the hemisphere 610 and the sealing ring 800 on one side, and gather on the bottom side wall of one side of the expansion part. As the water level increases, the water presses the rotating plate 730 to rotate it. After rotating 90 degrees, the rotation of 90 degrees is detected by the speed sensor 710, which is transmitted to the actuator 300 as an abnormal leakage. The two sides of the rotating plate 730 after rotation abut against the two side walls of the lower pressing plate to form a "Z"-shaped plugging surface. The water level continues to rise, and the water level flows to the through groove opened by the rotating blade 651, and flows to the bottom side wall of the expansion part on the other side, and squeezes the hemisphere 610 to make it tightly press the sealing ring 800, thereby improving the plugging strength of the other end and reducing overflow.

[0053] After leakage and overflow are detected, when the valve body 100 needs to be replaced, first rotate the retracted screw collar toward the side of the locking ring 220 to lock the connection interface between the inner sealing plate 230 and the push plate member 262, and at the same time, the retracted screw collar is separated from the connecting screw collar 250. At this time, in the valve body 100 mechanism, the matching seats 640 on both sides are in a plug-in relationship with the connecting block 263. At the same time, the valve body 100 is lifted upward to contact the plug-in relationship to achieve separation, and the push plate members 262 on both sides are sealed, and the new valve body 100 is quickly replaced. When the valve body 100 is installed, the ball core mechanism 600 is in a blocked state, and the matching seats 640 on both sides are inserted into the connecting block 263. Then the connecting screw collar 250 is screwed into the connecting screw collar 250 on the new valve body 100, so that the two end faces are pressed and sealed to achieve replacement of the new valve body 100.

[0054] When the ball valve is opened, the rotating plate 730 can be rotated under the action of hydraulic force to detect the internal flow rate and effectively detect whether there is blockage during the circulation process. When closed, the rotating plate 730 is rotated to a fixed position under the action of magnetic coupling, and the leaking liquid squeezes its rotation to detect the leakage. The leakage in the valve body 100 can be detected intuitively. At the same time, when the valve body 100 is replaced, the filter push plate pushed out by the screw collar is locked and combined with the inner sealing plate 230 to form a sealing interface, so that the valve body 100 can be replaced without stopping the entire pipeline. At the same time, the valve body 100 is connected with the plug-in parts on both sides, and the screw collar can be screwed in, which is convenient for disassembly and assembly.

[0055] The embodiment of the present embodiment is described above in conjunction with the accompanying drawings, but the present embodiment is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the enlightenment of the present embodiment, ordinary technicians in this field can also make many forms without departing from the purpose of the present embodiment and the scope of protection of the claims, all of which are within the protection of the present embodiment.

Claims

1. An intelligent control ball valve, comprising a valve body, a transmission mechanism, a ball core mechanism and an actuator, wherein the actuator is mounted on the top of the transmission mechanism, and the bottom of the transmission mechanism is connected to the ball core mechanism, a through-flow groove is provided inside the valve body, an expansion portion is provided in the middle of the flow groove, and a through hole is opened at the top of the valve body, the transmission mechanism is mounted on the inner side of the through hole, the ball core mechanism is located in the middle of the flow groove, and the ball core mechanism is used to open and close the flow groove, It is characterized in that The ball core mechanism includes a ball, a push-open unit and a sealing ring. The ball includes two hemispheres, and the two hemispheres are arranged opposite to each other. The push-open unit is located between the opposite sides of the two hemispheres. The sealing ring is located outside the expansion part. The push-open unit drives the two hemispheres to move toward each other along the groove direction of the flow groove and blocks the inner side of the flow groove. The end of the sphere is connected to a filter push plate unit, both ends of the valve body are installed with connecting mechanisms, and an inner sealing plate is installed inside the connecting mechanism. When the push-open unit drives the two hemispheres to move toward each other along the groove direction of the flow groove, the hemisphere drives the filter push plate unit to abut against the end surface of the inner sealing plate to block the end of the flow groove; The push-open unit includes a rotating blade, an outer blade and a rotating shaft. The rotating blade is installed on both sides of the rotating shaft, and the rotating shaft is inserted in the middle of the outer blade. The middle of the outer blade is provided with a rotating groove. The rotating blade rotates around the rotating shaft and forms an angle with the outer blade. A flow rate detection mechanism is installed on the bottom side wall of the valve body. The flow rate detection mechanism includes a rotating plate. The rotating plate is in a Z-shaped structure. When the ball core mechanism does not block the flow slot, the flow rate detection mechanism is used to detect the flow rate of the liquid passing through the flow slot. When the ball core mechanism blocks the flow slot, the flow rate detection mechanism is used to detect whether there is water leakage in the expansion part of the valve body. A lower pressing piece extends from the bottom end of the outer blade, and the lower pressing piece is located above the rotating plate. A notch is opened in the middle of the lower pressing piece, and the width of the notch is consistent with the height of the rotating plate. If there is a leak in the seal at one end, the liquid will overflow through the connection between the hemisphere and the sealing ring on one side, and gather on the bottom side wall of one side of the expansion part. As the water level rises, the rotating plate rotates 90 degrees, and the two sides of the rotating plate after rotation abut against the two side walls of the lower pressing piece to form a "Z"-shaped sealing surface. The water level continues to rise, and the water level flows to the through groove opened by the rotating blade, and then flows to the bottom side wall of the expansion part on the other side, squeezing the hemisphere to tightly press the sealing ring.

2. An intelligent control ball valve according to claim 1, It is characterized in that Support springs are vertically installed on both sides of the outer blade, and the two ends of the support springs are respectively connected to the inner side walls of the two hemispheres.

3. An intelligent control ball valve according to claim 2, It is characterized in that The filter push plate unit includes a push plate member, a connecting block, a fixed rod and a matching seat. The connecting block is installed in the middle of one side of the push plate member, the matching seat is installed at the rod end of the fixed rod, and a slot is provided on the inner side of the matching seat. The connecting block is inserted into the slot along a direction perpendicular to the axial direction of the fixed rod, and the end of the fixed rod away from the matching seat is installed on the outer wall of the hemisphere.

4. An intelligent control ball valve according to claim 3, It is characterized in that An annular groove is formed on the push plate, and a filter screen is arranged at one end of the push plate away from the ball core mechanism.

5. An intelligent control ball valve according to claim 4, It is characterized in that The connecting mechanism includes a sleeve flange, a locking ring, a locking screw collar and a connecting screw collar. The locking ring is installed at the end of the sleeve flange, and the sleeve flange is connected to the pipe end installed at one end of the ball valve. The connecting screw collar is arranged on the outer edge of the end of the valve body, and the locking screw collar is connected to the outer walls of the locking ring and the connecting screw collar by threads, and the ends of the locking ring and the connecting screw collar are abutted and connected to each other.

6. An intelligent control ball valve according to claim 5, It is characterized in that The inner sealing plate is arranged on the inner edge of the locking ring, and the end of the locking ring close to the sleeve flange is a closing structure. When the locking screw sleeve is threadedly stepped toward one side of the locking ring, the inner diameter of the locking ring decreases gradually.

7. An intelligent control ball valve according to claim 6, It is characterized in that The outer wall of the inner sealing plate is provided with a circle of protrusions, and a through hole is opened in the middle of the inner sealing plate. When the filter push plate unit is abutted against the end surface of the inner sealing plate, the protrusions are pressed into the groove wall of the annular groove.

8. An intelligent control ball valve according to claim 7, It is characterized in that The transmission mechanism includes a connecting rod, a passive sleeve and a sliding pin. The bottom end of the connecting rod is connected to the shaft end of the rotating shaft, and the passive sleeve is arranged on the outer wall of the connecting rod. The passive sleeve is fixedly connected to the inner wall of the valve body. The sliding pin is vertically installed on one side outer wall of the connecting rod, and the sliding pin is slidably connected to the sliding groove in the inner wall of the passive sleeve. When the connecting rod rotates around its axis, the sliding pin slides along the sliding groove and drives the transmission mechanism and the ball core mechanism connected thereto to move along the axial direction of the connecting rod.

9. An intelligent control ball valve according to claim 8, It is characterized in that The flow rate detection mechanism also includes a magnetic block and a speed sensor. The sensing end of the speed sensor is connected to the axis of the rotating plate through an axis. The magnetic blocks are respectively arranged on the lower side of the rotating plate and the bottom side wall of the valve body. The magnetic blocks on the bottom side wall of the valve body are a group of positive poles and a group of negative poles, and the two groups of magnetic blocks are distributed in a cross shape. One group of magnetic blocks located on the rotating plate is a positive pole or a negative pole.

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