Integrated double-insurance high-platform flange ball valve and using method thereof

Abstract

The invention discloses an integrated double-insurance high-platform flange ball valve and a using method thereof. The integrated double-insurance high-platform flange ball valve comprises two valve bodies. And the steering assembly is arranged between the two valve bodies, the two valve bodies are connected through the steering assembly, the steering assembly comprises a steering piece, and the steering piece comprises two fixing rings. The valve body is bent along the bending path of the hollow arc-shaped plate to enable the telescopic pipe to be bent to a certain degree, the fixing head is driven by the connecting arm and the connecting base to slide in the hollow arc-shaped plate, the positioning head is extruded by the first inclined protruding block or the second inclined protruding block to deflect into the hidden groove in the sliding process, and after the telescopic pipe is bent to a certain angle, the telescopic pipe is fixed. The positioning head is reset and clamped between the two first inclined protruding blocks or between the two second inclined protruding blocks under the elastic force of the first spring, so that a stable state is provided when the telescopic pipe is bent, the connecting angle of the two valve bodies can be adjusted according to the corner of the installation position, and the ball valve can be unfolded and installed at the complex position.

Description

Technical Field

[0001] The invention relates to the technical field of ball valves, and in particular to an integrated double-safety high-platform flange ball valve and a use method thereof. Background Art

[0002] The high platform flange ball valve is a special ball valve design. Its characteristic is that the design height of the valve body is higher than the center line of the pipeline. This design forms a relatively high platform. The main advantage of this design is that it can effectively reduce the deposition of the medium and ensure that the fluid flows more smoothly in the valve. It is widely used in petroleum, chemical, electric power, metallurgy and other industries, and is particularly suitable for the control of high temperature, high pressure or corrosive media.

[0003] In some specific pipeline layouts, the pipeline will be designed at an inclined or corner position. When there is a corner at the installation position of the ball valve, the traditional ball valve cannot be installed in these positions due to the fixed shape of the valve body. Summary of the invention

[0004] The purpose of the present invention is to provide an integrated double-safety high-platform flange ball valve and a method of using the same, which solves the problem that traditional ball valves control fluid flow through a sphere, and once the ball valve leaks, it needs to be repaired and replaced immediately. The ball valve is not durable enough, and in certain specific pipeline layouts, the pipeline will be designed at an inclined or corner position. The traditional ball valve cannot be installed in these positions due to the fixed shape of the valve body.

[0005] The present invention solves the above technical problems through the following technical solutions, which include: Two valve bodies, each of which has a sphere installed inside, and each of which has a valve stem fixed above the sphere; A steering assembly, wherein the steering assembly is disposed between two valve bodies, the two valve bodies are connected via the steering assembly, the steering assembly comprises a steering member, the steering member comprises two fixing rings, the two fixing rings are respectively welded to one side of the two valve bodies, and a telescopic tube is welded between the two fixing rings; The outer surfaces of the two fixing rings are provided with an annular groove, and sliding seats are slidably arranged inside the two annular grooves, and two first slide rail arms and two second slide rail arms are respectively fixed above the two sliding seats, and sliding arms are slidably arranged between the interiors of the two first slide rail arms and between the interiors of the two second slide rail arms, and a hollow arc plate is fixed between the two sliding arms, and a plurality of first inclined protrusions and a plurality of second inclined protrusions are fixed inside the hollow arc plate, a connecting arm is fixed above the two sliding seats, and a connecting seat is fixed at one end of the two connecting arms, and a fixing head is arranged above the two connecting seats, and the two fixing heads are both penetrated into the interior of the hollow arc plate, and a hidden groove is provided inside the two fixing heads, and a positioning head is rotatably arranged inside the two hidden grooves, and a first spring is fixed inside the two hidden grooves, and one end of the two first springs is fixedly connected to the two positioning heads respectively.

[0006] Preferably, two connecting grooves are provided at the bottom of the hollow arc plate, and the two connecting seats slide inside the two connecting grooves through two connecting pins. An inner groove is provided above the two connecting seats, and four positioning holes are provided on the inner surfaces of the two inner grooves. Sliding rods slide inside the two inner grooves, and two elastic strips are fixed at one end of the two sliding rods, and the two fixing heads are respectively fixed to one end of the two sliding rods.

[0007] Preferably, the first inclined protrusion and the second inclined protrusion are arranged in opposite directions.

[0008] Preferably, the steering assembly further comprises two steering exchange members, and the steering exchange members are used to change the position of the sliding seat inside the annular groove.

[0009] Preferably, four equidistantly distributed blocking grooves are provided on both sides of the inner surfaces of the two annular grooves, and receiving grooves are provided inside the two sliding seats. The steering exchange component includes a double magnetic pole bar rotating inside the receiving groove, a force plate fixed above the sliding seat, and a magnetic pole positioning head sliding inside the blocking groove. A connecting plate is fixed above the double magnetic pole bar, a second spring is fixed to the outside of the connecting plate, one end of the second spring is fixed to the inside of the receiving groove, the top of the connecting plate extends to the top of the sliding seat through a connecting shaft, and a paddle is fixed to one end of the connecting shaft.

[0010] Preferably, a driving mechanism is disposed above each of the two valve bodies, and the driving mechanism may be an electric actuator or a handle.

[0011] Preferably, a flange is provided on one side of the two valve bodies, one end of the two valve stems respectively extends to the outside of the two valve bodies, and one end of the two valve stems is respectively connected to two driving mechanisms.

[0012] A method for using an integrated double-safety high-platform flange ball valve comprises the following steps: Step 1: bend the valve body along the curved path of the hollow arc plate, the valve body will cause the telescopic tube to bend to a certain extent, and drive the fixed head to slide in the hollow arc plate through the connecting arm and the connecting seat, and the positioning head will be squeezed by the first inclined protrusion or the second inclined protrusion when sliding and deflected into the hidden groove until the bending angle of the telescopic tube is adjusted appropriately, and the positioning head will be pushed by the first spring to be stuck between the two first inclined protrusions or between the second inclined protrusions, so as to fix the fixed head and provide a stable state when the telescopic tube is bent; Step 2: After adjusting the angle of the connection between the two valve bodies, the valve body and the corresponding pipe can be connected through the flange; Step 3: According to the different bending directions required, you can pinch the force plates and paddles on the two sliding seats with both hands respectively. The paddles are forced to drive the connecting plate to deflect and squeeze the second spring. The connecting plate drives the double magnetic pole bar to deflect until the double magnetic pole bar pushes the two magnetic pole positioning heads into the two blocking grooves respectively. The sliding seat is rotated along the annular groove until the hollow arc plate is moved to the appropriate position. The sliding seat corresponds to the two magnetic pole positioning heads. Under the action of the opposite magnetic poles on the double magnetic pole bar and the magnetic pole positioning heads, the magnetic pole positioning heads are sucked into the receiving groove to fix the position of the sliding seat, thereby changing the position of the hollow arc plate on the telescopic tube, and then changing the direction in which the telescopic tube is bent.

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

[0014] 1. Compared with the traditional single ball valve, this ball valve is equipped with two balls for controlling the flow of fluid. The ball in one valve body is in an open state for a long time, and the ball in the other valve body is used to control the flow of fluid. Once the valve body corresponding to the used ball fails, the ball in the valve body that has been in an open state for a long time can be put into use, providing double insurance for the use of the ball valve and improving the durability of the ball valve. Compared with the traditional single-ball ball valve, the number of repairs and replacements after the ball valve fails can be reduced, that is, the number and duration of shutdowns of pipeline equipment connected to the ball valve can be reduced. Compared with installing and using two valves together, it reduces the occupied space, connection points and leakage points, and reduces costs at the same time.

[0015] 2. The telescopic tube is bent to a certain extent by bending the valve body along the curved path of the hollow arc plate, and the fixed head is driven to slide in the hollow arc plate through the connecting arm and the connecting seat. During the sliding, the positioning head is squeezed and deflected into the hidden groove by the first inclined protrusion or the second inclined protrusion. After the telescopic tube is bent to a certain angle, the positioning head is reset and stuck between the two first inclined protrusions or between the second inclined protrusions by the elastic force of the first spring, thereby providing a stable state when the telescopic tube is bent. The connection angle of the two valve bodies can be adjusted according to the corner of the installation location, so that the ball valve can be installed in a complex position. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the main structure of the present invention; Figure 2 This is a schematic diagram of the disassembly of the internal structure of the valve body in the present invention; Figure 3 It is a structural schematic diagram of the steering assembly in the present invention; Figure 4 is an exploded cross-sectional view of the steering assembly of the present invention; Figure 5 for Figure 4 The enlarged schematic diagram of the middle A part; Figure 6 for Figure 4 The enlarged schematic diagram of the middle part B; Figure 7 A partial cross-sectional view of the steering assembly of the present invention; Figure 8 for Figure 7 Enlarged schematic diagram of part C in the middle.

[0017] 1. Valve body; 2. Steering assembly; 21. Fixed ring; 22. Telescopic tube; 23. Annular groove; 24. Sliding seat; 25. First slide rail arm; 26. Second slide rail arm; 27. Sliding arm; 28. Hollow arc plate; 29. ​​First inclined protrusion; 210. Second inclined protrusion; 211. Connecting groove; 212. Connecting arm; 213. Connecting seat; 214. Inner groove; 215. Positioning hole; 216. Sliding rod; 217. Elastic strip; 218. Fixed head; 219. Hidden groove; 220. Positioning head; 221. First spring; 222. Blocking groove; 223. Storage groove; 224. Double magnetic pole strip; 225. Force plate; 226. Magnetic pole positioning head; 227. Connecting plate; 228. Second spring; 229. Paddle; 3. Driving mechanism; 4. Flange; 5. Ball; 6. Valve stem. DETAILED DESCRIPTION

[0018] The above and other technical features and advantages of the present invention are described in more detail below in conjunction with the accompanying drawings.

[0019] The present invention provides a technical solution: an integrated double insurance high platform flange ball valve, such as Figure 1-8 As shown, it includes two valve bodies 1 and a steering assembly 2. A flange 4 is provided on one side of the two valve bodies 1. The flange 4 is an important component for connecting the valve body 1 and the pipeline, and is used to install the ball valve in the pipeline system to ensure sealing and firmness. A ball 5 is installed inside the two valve bodies 1. The ball 5 is a hollow spherical component with a circular hole (through hole) in the center. It is usually made of metal or plastic. Its main function is to control the flow of fluid. When the through hole of the ball 5 is aligned with the flow direction of the pipeline, the fluid can pass freely. When the through hole of the ball 5 is rotated 90 degrees to make the ball When the through hole 5 is perpendicular to the flow direction of the fluid, the fluid is completely blocked. A valve stem 6 is fixed above the two spheres 5. One end of the two valve stems 6 extends to the outside of the two valve bodies 1 respectively. A driving mechanism 3 is arranged above the two valve bodies 1. One end of the two valve stems 6 is connected to the two driving mechanisms 3 respectively. The driving mechanism 3 can be an electric actuator or a handle. The valve stem 6 is usually made of metal. The driving mechanism 3 transmits the operating force through the valve stem 6, and rotates the sphere 5 through the electric actuator or the handle, thereby controlling the switch state of the valve.

[0020] The steering assembly 2 is arranged between the two valve bodies 1. The two valve bodies 1 are connected through the steering assembly 2. The steering assembly 2 serves as a pipeline structure connecting the two valve bodies 1, connecting the two valve bodies 1 and the steering assembly 2 to form a closed whole. The combined length of the two valve bodies 1, the steering assembly 2 and the two flanges 4 is consistent with the length of a traditional ball valve. Compared with the traditional single ball valve, the ball valve is provided with two balls 5 for controlling the flow of fluid. The ball 5 in one valve body 1 is in an open state for a long time, and the ball 5 in the other valve body 1 is used to control the flow of fluid. Once the valve body 1 corresponding to the used ball 5 fails, the ball 5 in the valve body 1 that is in an open state for a long time can be put into use, providing double insurance for the use of the ball valve and improving the durability of the ball valve. Compared with the traditional single-ball ball valve, the number of repairs and replacements after the ball valve fails is reduced, that is, the number and duration of shutdowns of the ball valve connected to the pipeline equipment can be reduced. Compared with installing and using two valves together, the occupied space, connection points and leakage points are reduced, and the cost is reduced.

[0021] The steering assembly 2 serves as a pipeline structure connecting the two valve bodies 1. The steering assembly 2 is used to change the angle at which the two valve bodies 1 are connected. The two valve bodies 1 can be connected in a straight line through the steering assembly 2, and the angle formed by the two valve bodies 1 can also be slightly adjusted to adapt to installations with different space requirements. The steering assembly 2 includes a steering member, and the steering member includes two fixing rings 21. The two fixing rings 21 are respectively welded to one side of the two valve bodies 1, and a telescopic tube 22 is welded between the two fixing rings 21.

[0022] The outer surfaces of the two fixing rings 21 are provided with annular grooves 23, and the insides of the two annular grooves 23 are provided with sliding seats 24 for sliding movement. Two first slide rail arms 25 and two second slide rail arms 26 are fixed above the two slide rail arms 24, respectively. Sliding arms 27 are slidably provided between the insides of the two first slide rail arms 25 and between the insides of the two second slide rail arms 26, and a hollow arc plate 28 is fixed between the two slide arms 27. A plurality of first inclined protrusions 29 and a plurality of second inclined protrusions 210 are fixed inside the hollow arc plate 28, and the number of the first inclined protrusions 29 and the second inclined protrusions 210 is equal. , with the middle part of the hollow arc plate 28 as the dividing point, the first inclined protrusion 29 and the second inclined protrusion 210 are arranged in opposite directions, and two connecting grooves 211 are provided below the hollow arc plate 28, and connecting arms 212 are fixed above the two sliding seats 24, and connecting seats 213 are fixed at one end of the two connecting arms 212, and the two connecting seats 213 slide inside the two connecting grooves 211 through two connecting pins, and inner grooves 214 are provided above the two connecting seats 213, and four positioning holes 215 are provided on the inner surfaces of the two inner grooves 214, The four positioning holes 215 are grouped into two and are respectively arranged at different heights. The openings of the two positioning holes 215 in one group are arranged opposite to each other. A slide bar 216 is slidably provided inside the two inner grooves 214. Two elastic strips 217 are fixed at one end of the two slide bars 216. When the slide bar 216 is completely inside the inner groove 214, the elastic strip 217 corresponds to the position of the positioning hole 215 below, and the two elastic strips 217 are respectively correspondingly stuck in the corresponding positioning holes 215 to limit the slide bar 216. A fixing head 218 is provided above the two connecting seats 213. The two fixing heads 218 are respectively fixed to the two At one end of a sliding rod 216, the two fixed heads 218 are both inserted into the interior of the hollow arc plate 28, and the interior of the two fixed heads 218 is provided with a hidden groove 219, and the interior of the two hidden grooves 219 is provided with a rotatable positioning head 220, and the interior of the two hidden grooves 219 is provided with a first spring 221, and one end of the two first springs 221 is respectively fixedly connected to the two positioning heads 220, and when the first spring 221 is at its original length, a part of one end of the positioning head 220 extends to the outside of the fixed head 218 and is stuck between two adjacent first inclined protrusions 29 or second inclined protrusions 210.

[0023] In some specific pipeline layouts, the pipeline may be designed at an inclined or corner position. If the position where the two valve bodies 1 are connected is located at a corner and has a certain curvature, the valve body 1 can be bent along the curved path of the hollow arc plate 28. The valve body 1 will cause the telescopic tube 22 to bend to a certain extent, and drive the fixed head 218 to slide in the hollow arc plate 28 through the connecting arm 212 and the connecting seat 213. During the sliding process, the positioning head 220 is squeezed by the first inclined protrusion 29 or the second inclined protrusion 210 to deflect into the hidden groove 219, and squeezes the first spring 221. After moving with the fixed head 218 to between the two first inclined protrusions 29 or between the second inclined protrusions 210, it is squeezed by the first spring 221. The elastic reset of 1 makes the positioning head 220 stuck between the two first inclined protrusions 29 or between the second inclined protrusions 210, so as to fix the position of the fixing head 218 and prevent the fixing head 218 from moving back, provide a stable state when the telescopic tube 22 is bent, and fix the deflection angle of the valve body 1 and the curvature of the telescopic tube 22. The two valve bodies 1 can change the angle of connection between them in the above manner. The valve body 1 and the corresponding pipeline can be installed after the angles of the two are adjusted and fixed. It is also possible to install a valve body 1 first and then adjust the bending angle to install the next valve body 1 and the pipeline, so that the ball valve can better adapt to these complex installation conditions and avoid installation difficulties caused by pipeline layout restrictions.

[0024] The steering assembly 2 also includes two steering exchange parts, which are used to change the position of the sliding seat 24 inside the annular groove 23, and change the position of the hollow arc plate 28 on the periphery of the telescopic tube 22 by changing the position of the sliding seat 24. Four equidistantly distributed shielding grooves 222 are provided on both sides of the inner surface of the two annular grooves 23, and the interior of the two sliding seats 24 is provided with a receiving groove 223. The steering exchange parts include a double magnetic pole strip 224 rotating inside the receiving groove 223, a force sheet 225 fixed above the sliding seat 24, and a magnetic pole positioning head 226 sliding inside the shielding groove 222. The outer surface of the double magnetic pole strip 224 is provided with two oppositely arranged magnetic poles "S poles" and two oppositely arranged magnetic poles "N poles", as shown in FIG. Figure 8 As shown, the "S pole" is locked with the magnetic pole positioning head 226, and the magnetic pole of the magnetic pole positioning head 226 is set to the "N pole". A connecting piece 227 is fixed on the top of the dual magnetic pole strip 224, and a second spring 228 is fixed to the outside of the connecting piece 227. One end of the second spring 228 is fixed to the inside of the receiving groove 223. The top of the connecting piece 227 extends to the top of the sliding seat 24 through a connecting shaft, and a paddle 229 is fixed to one end of the connecting shaft. When the second spring 228 is at its original length, the distance between the paddle 229 and the force plate 225 is the farthest, and at this time, the magnetic pole positioning head 226 and the position of the "S pole" set in the dual magnetic pole strip 224 are locked.

[0025] According to the different bending directions required, the force-applying pieces 225 and the paddles 229 on the two sliding seats 24 can be pinched with both hands respectively. The paddles 229 are deflected in the direction of the force-applying pieces 225 by the force, thereby driving the connecting piece 227 to deflect and squeeze the second spring 228. The connecting piece 227 will drive the dual magnetic pole strip 224 connected thereto to deflect, and during the deflection, the two magnetic pole positioning heads 226 are pushed into the two blocking grooves 222 respectively. After the dual magnetic pole strip 224 is deflected by a certain angle, the magnetic pole positioning heads 226 are pushed out of the receiving groove 223 through the “N pole” on its outer surface that is the same as the magnetic pole of the magnetic pole positioning heads 226, so as to release the limit of the magnetic pole positioning heads 226 on the sliding seat 24, and the sliding seat 24 is rotated along the annular groove 23 until the sliding seat 24 rotates out of its original position. First, adjust the positions of the two magnetic pole positioning heads 226 and then release the paddle 229. Under the reset of the second spring 228, the double magnetic pole strip 224 is reset. The sliding seat 24 will drive the hollow arc plate 28 to rotate along the outside of the telescopic tube 22 through the first slide rail arm 25 and the second slide rail arm 26 until the hollow arc plate 28 is moved to a suitable position. The sliding seat 24 corresponds to the two magnetic pole positioning heads 226. Under the action of the opposite magnetic poles on the double magnetic pole strip 224 and the magnetic pole positioning heads 226, the magnetic pole positioning heads 226 are sucked into the receiving groove 223 to fix the position of the sliding seat 24, thereby adjusting and changing the position of the hollow arc plate 28 on the telescopic tube 22, helping to change the direction in which the telescopic tube 22 is bent, and the two valve bodies 1 can be bent in different directions according to the space and needs of the installation position.

[0026] A method for using an integrated double-safety high-platform flange ball valve comprises the following steps: Step 1: bend the valve body 1 along the curved path of the hollow arc plate 28. The valve body 1 will cause the telescopic tube 22 to bend to a certain extent, and drive the fixed head 218 to slide in the hollow arc plate 28 through the connecting arm 212 and the connecting seat 213. When the positioning head 220 slides, it is squeezed by the first inclined protrusion 29 or the second inclined protrusion 210 and deflected into the hidden groove 219 until the bending angle of the telescopic tube 22 is adjusted appropriately. The positioning head 220 will be pushed by the first spring 221 to be stuck between the two first inclined protrusions 29 or between the second inclined protrusions 210, so as to fix the fixed head 218 and provide a stable state for the telescopic tube 22 when it is bent. Step 2: After adjusting the angle of the connection between the two valve bodies 1, the valve body 1 and the corresponding pipeline can be connected through the flange 4; Step 3: According to the different bending directions required, the force-applying pieces 225 and the paddles 229 on the two sliding seats 24 can be pinched with both hands respectively. The paddles 229 are forced to drive the connecting piece 227 to deflect and squeeze the second spring 228. The connecting piece 227 drives the dual magnetic pole strip 224 to deflect until the dual magnetic pole strip 224 pushes the two magnetic pole positioning heads 226 into the two blocking grooves 222 respectively. The sliding seat 24 is rotated along the annular groove 23 until the hollow arc plate 28 is moved to a suitable position. The sliding seat 24 corresponds to the two magnetic pole positioning heads 226. Under the action of the opposite magnetic poles on the dual magnetic pole strip 224 and the magnetic pole positioning heads 226, the magnetic pole positioning heads 226 are sucked into the receiving grooves 223 to fix the position of the sliding seat 24, thereby changing the position of the hollow arc plate 28 on the telescopic tube 22, and then changing the bending direction of the telescopic tube 22.

[0027] The above description is only a preferred embodiment of the present invention, which is only illustrative and not restrictive of the present invention. Those skilled in the art understand that many changes, modifications, and even equivalents may be made to the present invention within the spirit and scope defined by the claims of the present invention, but all of them will fall within the scope of protection of the present invention.

Claims

1. An integrated double insurance high platform flange ball valve, characterized in that: include: Two valve bodies (1), each of the two valve bodies (1) being provided with a sphere (5) inside, and each of the two spheres (5) being provided with a valve stem (6) fixed above; A steering assembly (2), the steering assembly (2) being arranged between two valve bodies (1), the two valve bodies (1) being connected via the steering assembly (2), the steering assembly (2) comprising a steering member, the steering member comprising two fixing rings (21), the two fixing rings (21) being respectively welded to one side of the two valve bodies (1), and a telescopic tube (22) being welded between the two fixing rings (21); The outer surfaces of the two fixing rings (21) are each provided with an annular groove (23), and a sliding seat (24) is slidably disposed inside the two annular grooves (23). Two first slide rail arms (25) and two second slide rail arms (26) are respectively fixed above the two slide rail arms (24). A sliding arm (27) is slidably disposed between the insides of the two first slide rail arms (25) and between the insides of the two second slide rail arms (26). A hollow arc plate (28) is fixed between the two slide arms (27), and a plurality of first inclined protrusions (29) and a plurality of second inclined protrusions (210) are fixed inside the hollow arc plate (28). The two slide seats (2 4), a connecting arm (212) is fixed on the top of each of the two connecting arms (212), a connecting seat (213) is fixed on one end of each of the two connecting arms (212), a fixing head (218) is arranged on the top of each of the two connecting seats (213), the two fixing heads (218) are inserted into the interior of the hollow arc-shaped plate (28), a hidden groove (219) is provided in the interior of each of the two fixing heads (218), a positioning head (220) is rotatably provided in the interior of each of the two hidden grooves (219), a first spring (221) is fixed in the interior of each of the two hidden grooves (219), and one end of each of the two first springs (221) is fixedly connected to the two positioning heads (220) respectively.

2. The integrated double insurance high platform flange ball valve according to claim 1 is characterized in that: Two connecting grooves (211) are provided at the bottom of the hollow arc plate (28), and the two connecting seats (213) slide inside the two connecting grooves (211) through two connecting pins. An inner groove (214) is provided above the two connecting seats (213), and four positioning holes (215) are provided on the inner surfaces of the two inner grooves (214). Slide rods (216) slide inside the two inner grooves (214), and two elastic strips (217) are fixed at one end of the two slide rods (216). The two fixing heads (218) are respectively fixed at one end of the two slide rods (216).

3. The integrated double insurance high platform flange ball valve according to claim 2 is characterized in that: The first inclined protrusion (29) and the second inclined protrusion (210) are arranged in opposite directions.

4. The integrated double insurance high platform flange ball valve according to claim 3 is characterized in that: The steering assembly (2) further comprises two steering exchange members, which are used to change the position of the sliding seat (24) inside the annular groove (23).

5. The integrated double insurance high platform flange ball valve according to claim 4 is characterized in that: Four equally spaced shielding grooves (222) are provided on both sides of the inner surface of the two annular grooves (23); a receiving groove (223) is provided inside the two sliding seats (24); the steering exchange member comprises a double magnetic pole strip (224) rotating inside the receiving groove (223), a force applying plate (225) fixed above the sliding seat (24), and a magnetic pole positioning head (226) sliding inside the shielding groove (222); a connecting plate (227) is fixed above the double magnetic pole strip (224); a second spring (228) is fixed outside the connecting plate (227); one end of the second spring (228) is fixed inside the receiving groove (223); the top of the connecting plate (227) extends to the top of the sliding seat (24) through a connecting shaft; a paddle (229) is fixed at one end of the connecting shaft.

6. The integrated double insurance high platform flange ball valve according to claim 1 is characterized in that: A driving mechanism (3) is provided above each of the two valve bodies (1); the driving mechanism (3) may be an electric actuator or a handle.

7. The integrated double insurance high platform flange ball valve according to claim 6 is characterized in that: A flange (4) is provided on one side of the two valve bodies (1), one end of the two valve stems (6) respectively extends to the outside of the two valve bodies (1), and one end of the two valve stems (6) is respectively connected to the two drive mechanisms (3).

8. A method for using an integrated double insurance high platform flange ball valve, the method for using the integrated double insurance high platform flange ball valve as claimed in claim 5 or 7, comprising the following steps: Step 1: bend the valve body (1) along the curved path of the hollow arc plate (28), the valve body (1) will cause the telescopic tube (22) to bend to a certain extent, and drive the fixed head (218) to slide in the hollow arc plate (28) through the connecting arm (212) and the connecting seat (213), and the positioning head (220) will be squeezed by the first inclined protrusion (29) or the second inclined protrusion (210) when sliding, and deflected into the hidden groove (219) until the bending angle of the telescopic tube (22) is adjusted to a suitable level, and the positioning head (220) will be pushed by the first spring (221) to be stuck between the two first inclined protrusions (29) or between the second inclined protrusion (210), thereby fixing the fixed head (220) and providing a stable state for the telescopic tube (22) when it is bent; Step 2: After adjusting the angle of the connection between the two valve bodies (1), the valve body (1) and the corresponding pipeline can be connected through the flange (4); Step 3: According to the different bending directions required, the force-applying pieces (225) and the paddles (229) on the two sliding seats (24) can be pinched with both hands respectively. The paddles (229) are forced to drive the connecting piece (227) to deflect and squeeze the second spring (228). The connecting piece (227) drives the double magnetic pole strip (224) to deflect until the double magnetic pole strip (224) pushes the two magnetic pole positioning heads (226) into the two blocking grooves (222) respectively, and the sliding seat (24) is moved along The annular groove (23) rotates until the hollow arc-shaped plate (28) is moved to a suitable position, and the sliding seat (24) corresponds to the two magnetic pole positioning heads (226). Under the action of the opposite magnetic pole suction forces on the double magnetic pole strips (224) and the magnetic pole positioning heads (226), the magnetic pole positioning heads (226) are sucked into the receiving groove (223) to fix the position of the sliding seat (24), thereby changing the position of the hollow arc-shaped plate (28) on the telescopic tube (22), thereby changing the direction in which the telescopic tube (22) is bent.

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