Ball valve body structure with anti-impact function

Abstract

The invention relates to the technical field of pipeline valves, in particular to a ball valve body structure with an anti-impact function, which comprises a valve body, a buffer unit and a positioning unit, and the buffer unit is fixedly arranged in the valve body and is used for relieving liquid impact force in the valve body. The vortex effect is generated by liquid, then the liquid moves towards the vortex at the other end along the inner wall of the valve body, direct impact on parts in the valve body can be effectively reduced in the process, the impact resistance effect of the valve body is improved, the larger the liquid pressure is, the larger the rotation amplitude of the angle of the flow deflector is, the stronger the turbulent flow effect on the liquid is, and therefore the impact resistance of the valve body is improved. The more obvious the liquid vortex phenomenon is, on the contrary, when the liquid pressure is reduced, the fluid vortex effect is weakened, and the design aims to ensure that when the liquid pressure is large, impact on parts in the valve body can be effectively relieved. And when the liquid pressure is small, by reducing the vortex phenomenon, it is ensured that the liquid can efficiently pass through the interior of the valve body, and therefore the liquid conveying efficiency is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of pipeline valves, in particular to a ball valve body structure with an anti-impact function. BACKGROUND

[0002] The ball valve is evolved from the plug, the opening and closing part of the ball valve is a ball, and the ball rotates by 90 degrees around the axis of the valve rod to achieve the opening and closing purposes. The ball valve is mainly used for cutting off, distributing and changing the flow direction of the medium on the pipeline, and the ball valve with a V-shaped opening also has a good flow regulating function. When the ball valve is used, the transported medium will impact the valve cavity, causing damage to the channel of the valve cavity and the ball. Long-term use will cause the sealing performance of the valve body to decrease, affecting the service life of the valve body. Referring to a Chinese patent with the application number CN202210710322.X, a high-pressure ball valve with a pressure-reducing anti-impact valve cavity is disclosed. The liquid inlet mechanism and the liquid outlet mechanism are arranged in the liquid inlet valve body and the liquid outlet valve body, respectively. When the auxiliary medium is transmitted in the ball valve, the anti-impact performance of the valve cavity is improved, the pressure in the valve cavity is reduced, the loss of the valve cavity during the medium transmission process is reduced, and the service life of the ball valve is improved. The liquid inlet mechanism of the high-pressure ball valve lacks an adjusting function for the flow angle of the liquid. When the flow pressure of the liquid is low, the impact force on the internal parts of the valve body is also relatively small. In this case, we do not need to make the liquid flow in the form of vortex flow, because the vortex flow will increase the flow trajectory of the liquid in the valve body, thereby reducing the liquid conveying efficiency, which is obviously somewhat wasteful. In view of this, the application provides a ball valve body structure with an anti-impact function to solve the above technical problems. SUMMARY

[0003] The application provides the following technical scheme: a ball valve body structure with an anti-impact function, comprising: a valve body and a buffer unit, the buffer unit is fixedly arranged inside the valve body and is used for reducing the impact force of the liquid on the inside of the valve body, and the buffer unit comprises: a six-rib frame, which is fixedly arranged at one end of the valve body close to the inlet; an axle hole, which is respectively formed in the middle of the six rib faces of the six-rib frame; a rotating shaft, which is rotatably installed in the axle hole; a flow guide vane, which is fixedly installed at one end of the rotating shaft and located at the periphery of the six-rib frame; a rocker arm, which is fixedly installed at the other end of the rotating shaft away from the flow guide vane; a wave plate, which is movably arranged at one end of the six-rib frame close to the inlet of the valve body; a sheet metal support, which is fixedly arranged at the side of the wave plate close to the six-rib frame at equal angles; a positioning unit, which is fixedly arranged in the middle of the side of the six-rib frame away from the wave plate.

[0004] As a preferred scheme of the present application, the metal sheet support position corresponds to the rocker position one by one, a sliding groove is arranged through the surface of the end of the metal sheet support away from the wave plate, a sliding pin is fixedly arranged on the surface of the end of the rocker away from the rotating shaft, and the outer wall of the sliding pin is in sliding connection with the inner wall of the sliding groove.

[0005] As a preferred scheme of the present application, the buffering unit further comprises: A cross is fixedly installed on the inner wall of the valve body and located on the side of the wave plate away from the six-rib frame; A linear bearing is fixedly installed in the middle of the cross; A sliding rod is slidingly installed in the linear bearing, and the end of the sliding rod close to the wave plate is fixedly connected with the middle of the wave plate.

[0006] As a preferred scheme of the present application, the buffering unit further comprises: A gasket is sleeved on the periphery of the sliding rod; A spring is sleeved on the periphery of the sliding rod and fixedly installed between the linear bearing and the gasket; A fastening nut is threadedly installed on the outer wall of the sliding rod and located on the side of the gasket away from the spring, and the opposite surface of the fastening nut is in abutment with the gasket.

[0007] As a preferred scheme of the present application, four weight-reducing grooves are arranged through the side of the linear bearing close to the wave plate, and the four weight-reducing grooves are arranged at equal angles about the center of the cross.

[0008] As a preferred scheme of the present application, two support frames are fixedly installed on the side of the linear bearing close to the six-rib frame, the two support frames are horizontally symmetrically arranged about the center of the linear bearing and located between two adjacent guide vanes, and the six-rib frame is fixedly installed between the two support frames.

[0009] As a preferred scheme of the present application, a corrugated telescopic sleeve is fixedly installed between the six-rib frame and the wave plate, the corrugated telescopic sleeve is located on the periphery of the plurality of metal sheet supports, the corrugated telescopic sleeve is used for waterproofing in the metal sheet support, and the corrugated telescopic sleeve is made of rubber.

[0010] As a preferred scheme of the present application, a flow guide cover is fixedly installed on the inner wall of the valve body, the flow guide cover is located between the cross and the guide vane, and the diameter of the end of the flow guide cover close to the guide vane is smaller than the diameter of the other end.

[0011] As a preferred scheme of the present application, the positioning unit comprises: A flange is fixedly installed on the side of the six-rib frame away from the wave plate; A sleeve is fixedly installed in the middle of the side of the flange away from the six-rib frame; The positioning rod is slidably installed inside the sleeve and penetrates the inner part of the flange plate and is fixedly connected with the side part of the wave plate; The ball cage is arranged at the end of the positioning rod away from the flange plate. The rolling ball is installed in the ball cage in a universal rolling manner.

[0012] As a preferred scheme of the present application, a ball groove is arranged in the middle of the inner wall of the valve body, a valve ball is rotatably installed in the ball groove, a valve hole is horizontally arranged in the middle of the valve ball, a valve rod is fixedly installed at the center of the top of the valve ball, the valve rod penetrates the valve body and extends to the top of the valve body, the valve rod and the valve body are sealed by a water-tight element, and a handle is fixedly installed at the top of the valve rod.

[0013] Compared with the prior art, the present application has the following advantages: 1. In the present application, the liquid flowing through the inside of the valve body is disturbed by the guide vane, so that the flow trajectory is changed. Under the guide action of the guide vane, the liquid generates vortex effect and then moves along the inner wall of the valve body to the other end. This process can effectively reduce the direct impact on the internal parts of the valve body, thereby improving the impact resistance of the valve body. Moreover, the greater the liquid pressure, the greater the rotation amplitude of the guide vane, so that the disturbance effect on the liquid is stronger, and the liquid vortex phenomenon is more obvious. Conversely, when the liquid pressure decreases, the fluid vortex effect will weaken. This design aims to ensure that when the liquid pressure is large, the impact on the internal parts of the valve body can be effectively reduced. When the liquid pressure is small, the vortex phenomenon is reduced to ensure that the liquid can pass through the inside of the valve body efficiently, thereby improving the efficiency of liquid delivery.

[0014] 2. In the present application, when the liquid inside the valve body stops flowing, the spring in the compressed state releases the elastic force, pushes the gasket, the fastening nut, the slide rod, the wave plate and the plurality of metal sheet supports to reset. The metal sheet support resets through the sliding connection of the sliding groove and the slide pin, drives the rocker arm, the shaft and the guide vane to rotate reversely along the inner wall of the shaft hole to restore, at the same time, the wave plate also drives the positioning rod and the rolling ball to move along the inside of the sleeve to the direction away from the valve ball. When the wave plate resets, the outer wall of the rolling ball just abuts against the outer wall of the valve ball, so that when the conduction in the valve body is interrupted, the slide rod cannot slide along the linear bearing, that is, the guide vane cannot rotate unnecessarily, thereby improving the service life. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structural schematic view of the present application. Figure 2 It is a side cross-sectional structural schematic view of the valve body in the present application. Figure 1 ; Figure 3 It is a side cross-sectional structural schematic view of the valve body in the present application. Figure 2 ; Figure 4The enlarged structural schematic diagram of A part in the application Figure 3 Figure 5 The internal structural schematic diagram of the six-rib frame in the application Figure 6 The structural schematic diagram of the wave plate in the application Figure 7 The structural schematic diagram of the metal plate support in the application Figure 8 The structural schematic diagram of the positioning unit in the application

[0016] In the figure: 100, valve body; 101, ball groove; 102, valve ball; 103, valve hole; 104, valve rod; 105, handle; 200, buffer unit; 201, six-rib frame; 202, shaft hole; 203, rotating shaft; 204, guide vane; 205, rocker arm; 206, wave plate; 207, metal plate support; 208, sliding groove; 209, sliding pin; 2010, cross; 2011, linear bearing; 2012, sliding rod; 2013, gasket; 2014, spring; 2015, fastening nut; 2016, weight-reducing groove; 2017, support frame; 300, positioning unit; 301, flange plate; 302, sleeve; 303, positioning rod; 304, ball cage; 305, rolling ball; 400, flow guide cover; 500, corrugated telescopic sleeve. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all the other embodiments obtained by those skilled in the art without creative work are within the protection scope of the application.

[0018] Please refer to Figures 1-8 The technical solutions provided by the application specifically include the following embodiments: ​The utility model provides a ball valve body structure with anti -impact function, including valve body 100, buffer unit 200 and positioning unit 300, buffer unit 200 is fixedly arranged in the inside of valve body 100, for slowing down the liquid impact force to the inside of valve body 100, buffer unit 200 includes six prism frame 201, shaft hole 202, pivot 203, guide vane 204, rocker arm 205, wave board 206, sheet metal support 207, sliding slot 208, sliding pin 209, cross 2010, linear bearing 2011, slide rod 2012, gasket 2013, spring 2014, fastening nut 2015, lightening groove 2016 and support frame 2017, six prism frame 201 is fixedly arranged in the one end of valve body 100 near the inlet, and shaft hole 202 is respectively penetrated and is arranged in the middle of six prism frame 201 six edge faces, pivot 203 is rotatably installed in the inside of shaft hole 202, guide vane 204 is fixedly installed in pivot 203 one end, and guide vane 204 is located the periphery of six prism frame 201, rocker arm 205 is fixedly installed in pivot 203 away from guide vane 204 one end, wave board 206 is movably arranged in the one end of six prism frame 201 near the inlet of valve body 100, sheet metal support 207 equiangularly distributed fixedly in wave board 206 near six prism frame 201 one side, positioning unit 300 is fixedly arranged in the middle of six prism frame 201 away from wave board 206 one side, sheet metal support 207 position and rocker arm 205 position one to one correspondence, and the surface of sheet metal support 207 away from wave board 206 one end is penetrated with sliding slot 208, and the surface of rocker arm 205 away from pivot 203 one end is fixedly provided with sliding pin 209, and the outer wall of sliding pin 209 is slidably connected with the inner wall of sliding slot 208, cross 2010 is fixedly installed on the inner wall of valve body 100, and is located wave board 206 away from six prism frame 201 one side, linear bearing 2011 is fixedly installed in the middle of cross 2010, and slide rod 2012 is slidably installed in the inside of linear bearing 2011, and the one end of slide rod 2012 near wave board 206 is fixedly connected with wave board 206 middle part, gasket 2013 is sleeved in the periphery of slide rod 2012, spring 2014 is sleeved in the periphery of slide rod 2012, and is fixedly installed between linear bearing 2011 and gasket 2013, fastening nut 2015 is threadedly installed on the one end of the outer wall of slide rod 2012, and is located gasket 2013 away from spring 2014 one side, and the opposite surface of fastening nut 2015 and gasket 2013 is in contact, and the one side of linear bearing 2011 near wave board 206 is penetrated with four lightening grooves 2016, and four lightening grooves 2016 are equiangularly arranged about the center of cross 2010, and the one side of linear bearing 2011 near six prism frame 201 is fixedly installed with two support frames 2017, and two support frames 2017 are horizontally symmetrically arranged about the center of linear bearing 2011, and are located between two adjacent guide vanes 204, and six prism frame 201 is fixedly installed between two support frames 2017.

[0019] Specifically, during the conveying of the liquid inside the valve body 100, the fluid thrust pushes the wave plate 206 to move in the direction of approaching the six-rib frame 201. Since the wave plate 206 is connected to the linear bearing 2011 through the slide rod 2012, the movement is more stable. At the same time, the movement of the wave plate 206 drives the fastening nut 2015 and the gasket 2013 to move together through the slide rod 2012, thereby causing the spring 2014 to be compressed and accumulate elastic force. The greater the fluid thrust, the longer the movement distance of the wave plate 206, and the greater the compression amount of the spring 2014. When the elastic force of the spring 2014 and the fluid thrust are offset, the wave plate 206 stops moving. In addition, the movement of the wave plate 206 also drives the plurality of metal supports 207 to move together. Since there is a sliding connection between the sliding groove 208 and the sliding pin 209, the movement of the metal support 207 drives the rocker arm 205, the shaft 203 and the guide vane 204 to rotate a certain angle along the inner wall of the shaft hole 202 through the connection of the sliding groove 208 and the sliding pin 209. The longer the movement distance of the wave plate 206, the greater the rotation angle of the guide vane 204. When the guide vane 204 rotates, the liquid flowing inside the valve body 100 will be affected by the disturbance of the guide vane 204, causing the flow trajectory to change. Under the guide of the guide vane 204, the liquid generates vortex effect and then moves along the inner wall of the valve body 100 to the other end. This process can effectively reduce the direct impact on the internal parts of the valve body 100, thereby improving the impact resistance of the valve body 100. Moreover, the greater the liquid pressure, the greater the rotation amplitude of the guide vane 204, thereby the stronger the disturbance effect on the liquid and the more obvious the vortex phenomenon of the liquid. Conversely, when the liquid pressure decreases, the vortex effect of the liquid will weaken. This design aims to ensure that when the liquid pressure is large, the impact on the internal parts of the valve body 100 can be effectively reduced; and when the liquid pressure is small, the vortex phenomenon is reduced to ensure that the liquid can pass through the inside of the valve body 100 efficiently, thereby improving the efficiency of liquid conveying.

[0020] Further, with reference to Figure 4 , Figure 6 as shown: The corrugated expansion sleeve 500 is fixedly installed between the six-rib frame 201 and the wave plate 206. The corrugated expansion sleeve 500 is located outside the plurality of metal supports 207. The corrugated expansion sleeve 500 is made of rubber and is used for waterproofing in the metal support 207. The valve body 100 is fixedly installed with a flow guide cover 400. The flow guide cover 400 is located between the cross frame 2010 and the guide vane 204. The diameter of the end of the flow guide cover 400 close to the guide vane 204 is smaller than the diameter of the other end.

[0021] Specifically, by adding corrugated telescopic sleeve 500 between the six frame 201 and the wave plate 206, aims to prevent the six frame 201 inside the liquid seepage, thereby avoiding the chute 208 and slide pin 209 between the generation of rust, ensure that the chute 208 and slide pin 209 between the always keep good sliding performance, on the valve body 100 inner wall set fairing 400, guide the liquid flow to the direction of the guide vane 204, ensure that the liquid flowing through the valve body 100 inside and guide vane 204 fully contact, and then be guide vane 204 guide to form vortex flow.

[0022] Further, with reference to Figure 2 、 Figure 3 、 Figure 8 It is shown that: Positioning unit 300 includes flange plate 301, sleeve 302, positioning rod 303, ball cage 304 and ball 305, flange plate 301 is fixedly installed in the six frame 201 away from the wave plate 206 side, sleeve 302 is fixedly installed in the flange plate 301 away from the six frame 201 in the middle of one side, positioning rod 303 is slidingly installed in the sleeve 302 inside, and penetrates the flange plate 301 inside, and is fixedly connected with the wave plate 206 side portion, ball cage 304 is opened in the positioning rod 303 away from the flange plate 301 one end, ball 305 is installed in the ball cage 304 inside omni-directional rolling; Valve body 100 inner wall middle part is opened with ball groove 101, ball groove 101 is rotatably installed with valve ball 102, valve ball 102 middle part is horizontally penetrated and opened with valve hole 103, valve ball 102 top center is fixedly installed with valve rod 104, valve rod 104 penetrates valve body 100, and extends to valve body 100 top, valve rod 104 and valve body 100 penetration hole are sealed by water-tight member, valve rod 104 top is fixedly installed with handle 105.

[0023] Specifically, the valve body 100 device is installed between two pipes, when the liquid in the pipe needs to be transported, by holding the handle 105 and rotating the valve rod 104 and the valve ball 102, the rotation of the valve ball 102 drives the valve hole 103 to rotate 90 degrees, so that the inside of the valve body 100 and the inside of the valve hole 103 are mutually communicated, the liquid can flow from the inside of the valve body 100, realizing the transportation of the liquid, when the liquid flow in the valve body 100 needs to be cut off, by holding the handle 105 to drive the valve rod 104, the valve ball 102 and the valve hole 103 to rotate 90 degrees, at this time the inside of the valve body 100 is interrupted, because there is no liquid flow in the inside of the valve body 100, the spring 2014 in compression state releases the rebound force, pushes the gasket 2013, the fastening nut 2015, the slide rod 2012, the wave plate 206 and the plurality of metal support 207 reset, the metal support 207 resets through the sliding connection of the sliding groove 208 and the slide pin 209, drives the rocker arm 205, the shaft 203 and the flow guide piece 204 to rotate reversely along the inner wall of the shaft hole 202 to reset, at the same time, the wave plate 206 also drives the positioning rod 303 and the ball 305 to move away from the valve ball 102 along the inside of the sleeve 302, when the wave plate 206 resets, the outer wall of the ball 305 just touches the outer wall of the valve ball 102, ensuring that the slide rod 2012 will not slide along the inside of the linear bearing 2011 after the inside of the valve body 100 is interrupted, that is, the flow guide piece 204 will not rotate unnecessarily, thereby prolonging the service life.

[0024] The valve body structure with impact resistance function of the ball valve in the scheme works, the valve body 100 device is installed between two pipes, when the liquid in the pipe needs to be transported, by holding the handle 105 and rotating the valve rod 104 and the valve ball 102, the rotation of the valve ball 102 drives the valve hole 103 to rotate 90 degrees, so that the inside of the valve body 100 and the inside of the valve hole 103 are mutually communicated, the liquid can flow from the inside of the valve body 100, realizing the transportation of the liquid; During the liquid conveying process inside the valve body 100, the fluid thrust pushes the wave plate 206 to move in the direction of approaching the six-rib frame 201. Since the wave plate 206 is connected to the linear bearing 2011 through the sliding rod 2012, the movement is more stable. At the same time, the movement of the wave plate 206 drives the fastening nut 2015 and the gasket 2013 to move together through the sliding rod 2012, thereby causing the spring 2014 to be compressed and accumulate elastic force. The greater the fluid thrust, the longer the movement distance of the wave plate 206, and the greater the compression amount of the spring 2014. When the elastic force of the spring 2014 and the fluid thrust are mutually offset, the wave plate 206 stops moving. In addition, the movement of the wave plate 206 also drives the multiple metal supports 207 to move together. Since there is a sliding connection between the sliding groove 208 and the sliding pin 209, the movement of the metal support 207 drives the rocker arm 205, the shaft 203 and the flow guide plate 204 to rotate a certain angle along the inner wall of the shaft hole 202 through the connection of the sliding groove 208 and the sliding pin 209. The longer the movement distance of the wave plate 206, the greater the rotation angle of the flow guide plate 204. When the flow guide plate 204 rotates, the liquid flowing inside the valve body 100 will be affected by the flow guide plate 204, causing the flow trajectory to change. Under the guidance of the flow guide plate 204, the liquid produces a vortex effect and then moves along the inner wall of the valve body 100 to the other end. This process can effectively reduce the direct impact on the internal parts of the valve body 100, thereby improving the impact resistance of the valve body 100. Moreover, the greater the liquid pressure, the greater the rotation amplitude of the flow guide plate 204, thereby the stronger the flow disturbance effect on the liquid, and the more obvious the liquid vortex phenomenon. Conversely, when the liquid pressure decreases, the liquid vortex effect will weaken. This design aims to ensure that when the liquid pressure is large, the impact on the internal parts of the valve body 100 can be effectively reduced; and when the liquid pressure is small, the vortex phenomenon is reduced to ensure that the liquid can pass through the valve body 100 efficiently, thereby improving the efficiency of liquid conveying. When the liquid flow inside the valve body 100 needs to be cut off, the valve stem 104, the valve ball 102 and the valve hole 103 are rotated by 90 degrees by holding the handle 105, at this time the internal guide of the valve body 100 is interrupted, because there is no liquid flow inside the valve body 100, the spring 2014 in the compressed state releases the rebound force, pushes the gasket 2013, the fastening nut 2015, the slide rod 2012, the wave plate 206 and the plurality of metal support 207 to reset, the metal support 207 resets through the sliding connection of the sliding groove 208 and the slide pin 209, drives the rocker arm 205, the shaft 203 and the flow guide plate 204 to rotate in the opposite direction along the inner wall of the shaft hole 202 to recover, at the same time, the wave plate 206 also drives the positioning rod 303 and the ball 305 to move away from the valve ball 102 along the inside of the sleeve 302, when the wave plate 206 resets, the outer wall of the ball 305 just touches the outer wall of the valve ball 102, ensuring that the slide rod 2012 will not slide along the inside of the linear bearing 2011 after the internal guide of the valve body 100 is interrupted, that is, the flow guide plate 204 will not rotate unnecessarily, thereby prolonging the service life.

[0025] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application.

Claims

1. A ball valve body structure having an impact resistance function, characterized by: The utility model relates to a valve body (100) and buffer unit (200) are fixedly arranged in the valve body (100) inside for reducing the liquid impact force to the valve body (100) inside, the buffer unit (200) includes: Six prism frame (201) is fixedly arranged in the valve body (100) inside near the end of inlet; Shaft hole (202) is respectively opened in the middle of six prism frame (201) six edge surface; The rotating shaft (203) is rotatably installed in the shaft hole (202) inside; The guide vane (204) is fixedly installed in the rotating shaft (203) one end, and the guide vane (204) is located in the periphery of six prism frame (201); The rocker arm (205) is fixedly installed in the rotating shaft (203) away from the guide vane (204) one end; The wave plate (206) is movably arranged in six prism frame (201) near the end of valve body (100) inlet; Sheet metal support (207) is fixedly arranged in the wave plate (206) near six prism frame (201) one side surface at equal angles; Positioning unit (300) is fixedly arranged in the middle of six prism frame (201) away from the wave plate (206) one side surface.

2. The ball valve body structure with impact resistance function according to claim 1, wherein: The sheet metal support (207) position and rocker arm (205) position one to one corresponding, the surface of sheet metal support (207) away from wave plate (206) one end is opened with sliding slot (208), the surface of rocker arm (205) away from rotating shaft (203) one end is fixedly provided with sliding pin (209), and the sliding pin (209) outer wall and sliding slot (208) inner wall sliding connection.

3. The ball valve body structure with impact resistance function according to claim 2, wherein: The buffer unit (200) further includes: Cross (2010) is fixedly installed on the inner wall of valve body (100), and is located in the wave plate (206) away from six prism frame (201) one side; Linear bearing (2011) is fixedly installed in the middle of cross (2010); Slide rod (2012) is slidably installed in the linear bearing (2011) inside, and the middle of slide rod (2012) near wave plate (206) is fixedly connected with wave plate (206).

4. The ball valve body structure with impact resistance function according to claim 3, wherein: The buffer unit (200) further includes: Gasket (2013) is sleeved on the periphery of slide rod (2012); Spring (2014) is sleeved on the periphery of slide rod (2012), and is fixedly installed between linear bearing (2011) and gasket (2013); Fastening nut (2015) is threadedly installed on the outer wall one end of slide rod (2012), and is located in the gasket (2013) away from spring (2014) one side, and the opposite surface of fastening nut (2015) and gasket (2013) abut.

5. The ball valve body structure with impact resistance function according to claim 4, wherein: ​ Four weight-reducing grooves (2016) are formed through the side of the linear bearing (2011) close to the wave plate (206), and the four weight-reducing grooves (2016) are arranged at equal angles about the center of the cross (2010).

6. The ball valve body structure with impact resistance function according to claim 5, wherein: Two support frames (2017) are fixedly installed on the side of the linear bearing (2011) close to the six-sided frame (201), the two support frames (2017) are horizontally symmetrically arranged about the center of the linear bearing (2011), and are located between two adjacent guide vanes (204), and the six-sided frame (201) is fixedly installed between the two support frames (2017).

7. The ball valve body structure with impact resistance function according to claim 6, wherein: A corrugated telescopic sleeve (500) is fixedly installed between the six-sided frame (201) and the wave plate (206), the corrugated telescopic sleeve (500) is located outside the plurality of metal sheet supports (207), the corrugated telescopic sleeve (500) is used for waterproofing inside the metal sheet supports (207), and the corrugated telescopic sleeve (500) is made of rubber.

8. The ball valve body structure with impact resistance function according to claim 7, wherein: A flow guide cover (400) is fixedly installed on the inner wall of the valve body (100), the flow guide cover (400) is located between the cross (2010) and the guide vane (204), and the diameter of the end of the flow guide cover (400) close to the guide vane (204) is smaller than the diameter of the other end.

9. The ball valve body structure with impact resistance function according to claim 8, wherein: The positioning unit (300) comprises: A flange plate (301) is fixedly installed on the side of the six-sided frame (201) away from the wave plate (206); A sleeve (302) is fixedly installed on the middle of the side of the flange plate (301) away from the six-sided frame (201); A positioning rod (303) is slidingly installed inside the sleeve (302) and penetrates the inside of the flange plate (301) and is fixedly connected with the side of the wave plate (206); A ball cage (304) is formed on the end of the positioning rod (303) away from the flange plate (301); A rolling ball (305) is omnidirectionally rolling installed inside the ball cage (304).

10. The ball valve body structure with impact resistance function according to claim 9, wherein: A ball groove (101) is formed in the middle of the inner wall of the valve body (100), a valve ball (102) is rotatably installed inside the ball groove (101), a valve hole (103) is horizontally formed through the middle of the valve ball (102), a valve rod (104) is fixedly installed at the center of the top of the valve ball (102), the valve rod (104) penetrates the valve body (100) and extends to the top of the valve body (100), the valve rod (104) and the penetration hole of the valve body (100) are sealed by a water-tight member, and a handle (105) is fixedly installed on the top of the valve rod (104).

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