C-type wear-resistant ball valve

Abstract

The present invention relates to the field of valve technology, specifically to a C-type wear-resistant ball valve, comprising a valve body, one end of the valve body being provided with a liquid inlet pipe, and the end of the valve body away from the liquid inlet pipe being provided with a liquid outlet pipe, and characterized in that a C-shaped sphere is provided within the valve body, the outer side of the C-shaped sphere is provided with a groove, and a C-shaped wear-resistant plate is slidably connected within the groove; when it is necessary to close the C-type ball valve, the first drive shaft is driven to rotate forward, and the second drive shaft is driven to rotate by the slide plate to drive the C-type sphere to rotate, and when the C-type sphere rotates to a certain position, it corresponds to the liquid inlet pipe, and when the movable plate moves up to a certain position along the spiral groove, the slide plate is no longer in contact with the second groove, and when the first drive shaft continues to rotate forward, it drives the hydraulic structure, and relies on the hydraulic structure to drive the C-type wear-resistant plate to move, thereby closing the C-type ball valve and improving the wear resistance and service life of the C-type ball valve.

Description

Technical Field

[0001] The present invention relates to the technical field of valves, in particular to a C-type wear-resistant ball valve. Background Art

[0002] Ball valve is a valve used to regulate and control liquids, commonly used in oil refining, long-distance pipelines, chemical industry, papermaking, pharmaceuticals, water conservancy, electric power, municipal administration, steel and other industries;

[0003] Patent No. CN202210637637.6 mentions a wear-resistant C-type ball valve, which uses the rotation of the turntable to push the round block to separate from the inner wall of the round hole, reduce the pressure on the C-type ball, facilitate the opening of the C-type ball, and increase its service life. However, it is obvious that after the C-type ball valve is opened, since the turntable is installed in the middle of the pipeline, the liquid in the pipeline will be blocked by the turntable, thereby affecting the fluidity of the liquid in the pipeline. Therefore, a C-type wear-resistant ball valve is proposed to improve the wear resistance of the C-type ball valve and the fluidity of the liquid in the pipeline. Summary of the Invention

[0004] In response to the problems in the prior art, the present invention provides a C-type wear-resistant ball valve to improve the wear resistance of the C-type ball valve and the fluidity of the liquid in the pipeline.

[0005] The technical solution adopted by the present invention to solve its technical problems is a C-type wear-resistant ball valve, including a valve body, a liquid inlet pipe is provided at one end of the valve body, and a liquid outlet pipe is provided at the end of the valve body away from the liquid inlet pipe. It is characterized in that a C-type sphere is provided in the valve body, a groove is provided on the outer side of the C-type sphere, a C-type wear-resistant plate is slidably connected in the groove, an expansion structure is provided inside the groove, and the expansion structure is located on the side of the C-type wear-resistant plate close to the C-type sphere.

[0006] By adopting the above technical solution, when the C-type ball valve needs to be closed, the C-type ball is rotated to a certain position, and the C-type wear-resistant plate on one side of the C-type ball corresponds to the liquid inlet pipe. At this time, the expansion of the expansion structure drives the C-type wear-resistant plate to move. When the C-type wear-resistant plate moves to a certain position, the C-type wear-resistant plate is squeezed and contacted with one end of the liquid inlet pipe, closing the C-type ball valve;

[0007] When the C-type ball valve needs to be opened, the expansion structure no longer squeezes the C-type wear-resistant plate, and the C-type ball is rotated to open the liquid inlet pipe, thereby improving the flowability of the liquid in the valve body, as well as the wear resistance and service life of the C-type wear-resistant plate.

[0008] Specifically, a positioning bracket is provided on the top of the valve body, a driving structure is provided in the middle of the positioning bracket, the lower end of the driving structure is fixedly connected to the upper end of the C-shaped sphere, the bottom inner bottom of the valve body is fixedly connected to the rotating seat, and the lower end of the C-shaped sphere is rotatably connected to the rotating seat.

[0009] By adopting the above technical solution, the driving structure drives the C-type ball to rotate. The rotation of the C-type ball facilitates the control of the opening and closing of the C-type wear-resistant ball valve. The rotation stability of the C-type ball can be improved by relying on the effect of the rotating seat. At the same time, the driving stability of the driving structure can be improved by relying on the positioning bracket.

[0010] Specifically, the driving structure includes a first driving shaft and a second driving shaft. A hydraulic structure is provided inside the second driving shaft. When the first driving shaft and the second driving shaft rotate relative to each other, the hydraulic structure is driven. The hydraulic structure is connected to the expansion structure through a pipeline.

[0011] An adjustment structure is provided on the outside of the driving structure, and the adjustment structure is fixedly connected to the positioning bracket. The adjustment structure is used to control the first driving shaft and the second driving shaft to rotate synchronously and relatively.

[0012] By adopting the above technical solution, the C-shaped sphere can be driven to rotate by relying on the synchronous rotation of the first drive shaft and the second drive shaft. When the C-shaped sphere rotates to a certain position, the first drive shaft and the second drive shaft are caused to rotate relative to each other by relying on the adjustment structure. When the first drive shaft and the second drive shaft rotate relative to each other, the hydraulic structure is driven to open, and the expansion structure is driven by relying on the hydraulic structure to communicate with the expansion structure through the pipeline, and the expansion structure is driven to move the C-shaped wear-resistant plate.

[0013] It should be noted that the rotation of the first drive shaft described in the present invention can be driven by a drive motor, or can be driven to rotate manually.

[0014] Specifically, the adjustment structure includes a shell, and a spiral groove is provided in the shell;

[0015] The adjustment structure also includes several groups of first slots vertically arranged on the outside of the lower end of the first drive shaft, and several groups of second slots vertically arranged on the outside of the upper end of the second drive shaft. The first slots correspond to the second slots, and a slide is slidably connected between the first slots and the second slots. A horizontally arranged movable plate is provided on the outer side of the upper part of the slide, and the movable plate is slidably connected to the spiral groove.

[0016] By adopting the above technical solution, when the C-type ball valve needs to be closed, the first drive shaft is driven to rotate forward, and the moving plate moves to drive the slide plate to move. Since the slide plate is located in the first slot and the second slot, when the first drive shaft rotates forward, the second drive shaft is driven to rotate synchronously by the slide plate. When the second drive shaft rotates, the C-type ball is driven to rotate. When the C-type ball rotates to a certain position, the C-type wear-resistant plate on one side of the C-type ball corresponds to the liquid inlet pipe.

[0017] When the movable plate moves up to a certain position along with the spiral groove, the slide plate no longer contacts the second slot and is located in the first slot. At this time, when the first drive shaft rotates forward, it no longer drives the second drive shaft to rotate synchronously. When the first drive shaft continues to rotate forward, it drives the hydraulic structure, which drives the C-type wear-resistant plate to move, and relies on the C-type wear-resistant plate to block the pipeline, thereby improving the use effect.

[0018] Specifically, two groups of blocks are provided on the inner wall of the shell, and both groups of blocks are located below the spiral groove. Two groups of fixed blocks are provided on the outer side of the second drive shaft, and the two groups of fixed blocks are slidably connected to the two groups of blocks respectively.

[0019] By adopting the above technical solution, when the movable plate moves to a certain position, the slide plate no longer contacts the second slot and is located in the first slot. At this time, when the first drive shaft rotates forward, it no longer drives the second drive shaft to rotate synchronously. The second drive shaft is connected by a sliding connection between a stop block provided in the shell and a fixed block provided on the outside of the second drive shaft, so that the second drive shaft cannot rotate and the stability of the second drive shaft is guaranteed.

[0020] Specifically, the hydraulic structure includes a piston cavity arranged inside the second drive shaft, the piston cavity is filled with liquid, a piston plate is sealed and slidably connected to the piston cavity, a vertically arranged threaded rod is fixedly connected to the upper surface of the piston plate, an internal threaded hole is provided in the middle of the first drive shaft, the internal threaded hole passes through the lower end of the first drive shaft, the upper end of the threaded rod passes through the second drive shaft and is threadedly connected to the internal threaded hole, a vertically arranged sliding rod is fixedly installed in the piston cavity, the sliding rod passes through the piston plate and is slidably connected to the piston plate.

[0021] By adopting the above technical solution, when the slide plate is disengaged from the second slide groove and is located in the first slide groove, the first drive shaft no longer drives the second drive shaft to rotate synchronously when it rotates forward. At this time, when the first drive shaft continues to rotate, it relies on the threaded connection between the internal threaded hole and the threaded rod to drive the threaded rod to move downward, and drives the piston plate to move downward. When the piston plate moves downward, it squeezes the inside of the piston cavity, and relies on the pipeline to transport the liquid in the piston cavity to the expansion structure, thereby driving the expansion structure to expand, and relying on the expansion structure to drive the C-type wear-resistant plate to move. When the C-type wear-resistant plate moves to a certain position, it blocks the flow of the pipeline.

[0022] When the pipeline needs to be opened, the first drive shaft is driven to rotate in the opposite direction. When the first drive shaft rotates in the opposite direction, the threaded rod is driven to move upward by the threaded connection between the internal threaded hole and the threaded rod. When the threaded rod moves upward, the piston plate is driven to move upward. When the piston plate moves upward, it no longer squeezes the piston cavity. At this time, the expansion structure contracts, driving the C-type wear-resistant plate to move, so that the C-type wear-resistant plate returns to its initial state.

[0023] When the first drive shaft continues to rotate in the opposite direction, the movable plate moves down to a certain position, so that the slide plate slides and connects in the first slot and the second slot. The movement of the slide plate drives the second drive shaft to rotate. When the second drive shaft rotates, the C-shaped ball is driven to rotate. When the C-shaped ball rotates to a certain position, the pipeline is opened.

[0024] The function of the sliding rod can improve the stability of the piston plate and prevent the piston plate from rotating when the threaded rod rotates.

[0025] Specifically, the expansion structure includes an expansion pad, one side of which is in compression contact with the C-shaped wear-resistant plate, and a liquid outlet is provided at the lower end of the piston cavity, which is connected to the expansion pad through a pipeline.

[0026] By adopting the above technical solution, when the piston plate moves downward and squeezes, the liquid in the piston cavity is discharged through the liquid outlet hole and transported to the expansion pad through the pipeline. The expansion of the expansion pad drives the C-type wear-resistant plate to move, and the C-type wear-resistant plate blocks the liquid in the pipeline, thereby improving the convenience of use and reducing the friction on the C-type wear-resistant plate.

[0027] When the piston plate returns to its initial state, the liquid in the expansion pad is transported back to the piston cavity through the pipeline, thereby returning to the initial state and facilitating the opening of the pipeline.

[0028] Specifically, a pressure relief valve is provided above the piston plate, and the pressure relief valve is connected to the lower part of the piston chamber. A one-way liquid inlet valve is provided below the piston plate, and the one-way liquid inlet valve is connected to one end of the piston chamber close to the threaded rod.

[0029] By adopting the above technical solution, when the expansion pad expands to the limit, when the piston plate continues to move downward, the liquid in the piston cavity will enter the upper part of the piston cavity through the pressure relief valve, thereby improving the use effect;

[0030] When the threaded rod moves upward, it drives the piston plate to move upward. After the piston plate moves to a certain position, it squeezes the upper part of the piston cavity, so that the liquid in the upper part of the piston cavity enters the lower part of the piston cavity again through the one-way liquid inlet valve, thereby facilitating the next expansion of the expansion pad.

[0031] Specifically, two groups of horizontally arranged chutes are provided in the C-shaped sphere, and two groups of horizontally arranged sliders are provided on the side of the C-shaped wear-resistant plate close to the C-shaped sphere. The C-shaped wear-resistant plate is slidably connected to the chutes in the C-shaped sphere through the sliders.

[0032] By adopting the above technical solution, when the C-shaped wear-resistant plate moves, the movement stability of the C-shaped wear-resistant plate can be improved by relying on the sliding connection between the slider and the slide groove.

[0033] Beneficial effects of the present invention:

[0034] (1) The C-type wear-resistant ball valve described in the present invention, when it is necessary to close the C-type ball valve, drives the first drive shaft to rotate in the forward direction, and relies on the slide to drive the second drive shaft to rotate and drive the C-type ball to rotate. When the C-type ball rotates to a certain position, it corresponds to the liquid inlet pipe. When the movable plate moves up to a certain position along the spiral groove, the slide no longer contacts the second slot. When the first drive shaft continues to rotate in the forward direction, it drives the hydraulic structure, and relies on the hydraulic structure to drive the C-type wear-resistant plate to move, thereby closing the C-type ball valve and improving the wear resistance and service life of the C-type ball valve.

[0035] (2) The C-type wear-resistant ball valve described in the present invention relies on driving the first drive shaft to rotate in the opposite direction, so that the piston plate moves up and no longer squeezes the piston cavity. At this time, the expansion structure contracts, driving the C-type wear-resistant plate to move, so that the C-type wear-resistant plate returns to its initial state. When the first drive shaft continues to rotate in the opposite direction, it drives the C-type ball to rotate. When the C-type ball rotates to a certain position, the liquid inlet pipe is opened, thereby improving the flowability of the liquid in the valve body and reducing the friction on the C-type wear-resistant plate, thereby improving the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The present invention will be further described below with reference to the accompanying drawings and examples.

[0037] Figure 1 is an axonometric drawing of the present invention;

[0038] Figure 2 This is a schematic diagram of the C-type sphere connection structure of the present invention;

[0039] Figure 3 Schematic diagram of the cross-sectional structure of a C-type sphere of the present invention;

[0040] Figure 4 For the present invention Figure 3 Schematic diagram of the enlarged structure of area A;

[0041] Figure 5 Schematic diagram of the housing structure of the present invention;

[0042] Figure 6 This is a schematic cross-sectional structural diagram of the housing of the present invention;

[0043] Figure 7 This is a schematic structural diagram of the second drive shaft of the present invention;

[0044] Figure 8 is a schematic cross-sectional structural diagram of the second drive shaft of the present invention;

[0045] Figure 9 This is a schematic diagram of the first drive shaft connection structure of the present invention;

[0046] Figure 10 is a schematic cross-sectional structural diagram of the second drive shaft of the present invention;

[0047] Figure 11 For the present invention Figure 3 Schematic diagram of the enlarged structure of region B;

[0048] In the figure: 1. valve body; 2. liquid inlet pipe; 3. liquid outlet pipe; 4. C-type sphere; 5. C-type wear-resistant plate; 6. positioning bracket; 7. drive structure; 8. rotating seat; 9. first drive shaft; 10. second drive shaft; 11. adjustment structure; 12. shell; 13. spiral groove; 14. first slot; 15. second slot; 16. slide plate; 17. movable plate; 18. stop block; 19. fixed block; 20. piston chamber; 21. piston plate; 22. threaded rod; 23. internal threaded hole; 24. slide rod; 25. expansion pad; 26. liquid outlet; 27. pressure relief valve; 28. one-way liquid inlet valve; 29. ​​slide groove; 30. slider. DETAILED DESCRIPTION

[0049] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0050] In order to improve the wear resistance of the C-type ball valve and the fluidity of the liquid in the pipeline, as an embodiment of the present invention, Figure 1 、 Figure 2 As shown, the C-type wear-resistant ball valve described in the present invention includes a valve body 1, a liquid inlet pipe 2 is provided at one end of the valve body 1, and a liquid outlet pipe 3 is provided at the end of the valve body 1 away from the liquid inlet pipe 2. It is characterized in that a C-type sphere 4 is provided in the valve body 1, and a groove is provided on the outer side of the C-type sphere 4. A C-type wear-resistant plate 5 is slidably connected in the groove, and an expansion structure is provided inside the groove, and the expansion structure is located on the side of the C-type wear-resistant plate 5 close to the C-type sphere 4.

[0051] During use, when the C-type ball valve needs to be closed, the C-type ball 4 is rotated to a certain position, and the C-type wear-resistant plate 5 on one side of the C-type ball 4 corresponds to the liquid inlet pipe 2. At this time, the expansion of the expansion structure drives the C-type wear-resistant plate 5 to move. When the C-type wear-resistant plate 5 moves to a certain position, the C-type wear-resistant plate 5 is squeezed and contacted with one end of the liquid inlet pipe 2, closing the C-type ball valve;

[0052] When the C-type ball valve needs to be opened, the expansion structure no longer squeezes the C-type wear-resistant plate 5, and the C-type ball 4 is rotated to open the liquid inlet pipe 2, thereby improving the flowability of the liquid in the valve body 1, as well as the wear resistance and service life of the C-type wear-resistant plate.

[0053] In order to improve the rotation stability of the C-shaped sphere 4, for example, Figure 1 、 Figure 2As shown, the present invention also includes that a positioning bracket 6 is provided on the top of the valve body 1, a driving structure 7 is provided in the middle of the positioning bracket 6, the lower end of the driving structure 7 is fixedly connected to the upper end of the C-shaped sphere 4, the bottom inner bottom of the valve body 1 is fixedly connected to the rotating seat 8, and the lower end of the C-shaped sphere 4 is rotatably connected to the rotating seat 8.

[0054] When in use, the driving structure 7 drives the C-type ball 4 to rotate. The rotation of the C-type ball 4 facilitates the control of the opening and closing of the C-type wear-resistant ball valve. The rotation stability of the C-type ball 4 can be improved by relying on the action of the rotating seat 8. At the same time, the driving stability of the driving structure 7 can be improved by relying on the positioning bracket 6.

[0055] In order to facilitate the rotation of the C-shaped sphere 4, Figure 3 、 Figure 4 As shown, the present invention also includes that the driving structure 7 includes a first driving shaft 9 and a second driving shaft 10, and a hydraulic structure is provided inside the second driving shaft 10. When the first driving shaft 9 and the second driving shaft 10 rotate relative to each other, the hydraulic structure is driven, and the hydraulic structure is connected to the expansion structure through a pipeline;

[0056] An adjusting structure 11 is provided on the outside of the driving structure 7 . The adjusting structure 11 is fixedly connected to the positioning bracket 6 . The adjusting structure 11 is used to control the first driving shaft 9 and the second driving shaft 10 to rotate synchronously and relative to each other.

[0057] During use, the C-shaped sphere 4 can be driven to rotate by the synchronous rotation of the first drive shaft 9 and the second drive shaft 10. When the C-shaped sphere 4 rotates to a certain position, the first drive shaft 9 and the second drive shaft 10 are caused to rotate relative to each other by the adjustment structure 11. When the first drive shaft 9 and the second drive shaft 10 rotate relative to each other, the driving hydraulic structure is opened, and the expansion structure is driven by the hydraulic structure through the pipeline to drive the expansion structure, and the expansion structure drives the C-shaped wear-resistant plate 5 to move;

[0058] It should be noted that the rotation of the first drive shaft 9 described in the present invention can be driven by a drive motor, or can be driven to rotate by manual rotation.

[0059] In order to facilitate the rotation of the C-shaped sphere and the movement of the C-shaped wear-resistant plate 5, for example, Figure 4 、 Figure 5 、 Figure 6 、 Figure 8 、 Figure 9 As shown, the present invention further includes that the adjustment structure 11 includes a housing 12, and a spiral groove 13 is provided in the housing 12;

[0060] The adjustment structure 11 also includes several groups of first slots 14 vertically arranged on the outside of the lower end of the first drive shaft 9, and several groups of second slots 15 vertically arranged on the outside of the upper end of the second drive shaft 10. The first slots 14 correspond to the second slots 15. A slide 16 is slidably connected between the first slots 14 and the second slots 15. A horizontally arranged movable plate 17 is provided on the outer side of the upper part of the slide 16. The movable plate 17 is slidably connected to the spiral groove 13.

[0061] During use, when the C-type ball valve needs to be closed, the first drive shaft 9 is driven to rotate forward, and the movable plate 17 moves to drive the slide plate 16 to move. Since the slide plate 16 is located in the first slot 14 and the second slot 15, when the first drive shaft 9 rotates forward, the second drive shaft 10 is driven to rotate synchronously by the slide plate 16. When the second drive shaft 10 rotates, the C-type ball 4 is driven to rotate. When the C-type ball 4 rotates to a certain position, the C-type wear-resistant plate 5 on one side of the C-type ball 4 corresponds to the liquid inlet pipe 2.

[0062] When the movable plate 17 moves up to a certain position along with the spiral groove 13, the slide plate 16 no longer contacts the second slot 15 and is located in the first slot 14. At this time, when the first drive shaft 9 rotates forward, it no longer drives the second drive shaft 10 to rotate synchronously. When the first drive shaft 9 continues to rotate forward, it drives the hydraulic structure, which drives the C-type wear-resistant plate 5 to move, and relies on the C-type wear-resistant plate 5 to block the pipeline, thereby improving the use effect.

[0063] In order to ensure the stability of the second drive shaft 10, for example, Figure 2 、 Figure 6 As shown, the present invention also includes that two groups of blocks 18 are provided on the inner wall of the shell 12, and the two groups of blocks 18 are located below the spiral groove 13, and two groups of fixed blocks 19 are provided on the outer side of the second drive shaft 10, and the two groups of fixed blocks 19 are slidably connected to the two groups of blocks 18 respectively.

[0064] During use, when the movable plate 17 moves up to a certain position, the slide plate 16 no longer contacts the second slot 15 and is located in the first slot 14. At this time, when the first drive shaft 9 rotates forward, it no longer drives the second drive shaft 10 to rotate synchronously. The second drive shaft 10 is prevented from rotating by the stop block 18 provided in the shell 12 and the fixed block 19 provided on the outside of the second drive shaft 10, thereby ensuring the stability of the second drive shaft 10.

[0065] In order to facilitate driving the expansion structure, for example, Figure 7 、 Figure 8 、 Figure 9 、 Figure 10As shown, the present invention also includes that the hydraulic structure includes a piston chamber 20 arranged inside the second drive shaft 10, the piston chamber 20 is filled with liquid, and a piston plate 21 is sealed and slidably connected in the piston chamber 20, and the upper surface of the piston plate 21 is fixedly connected to a vertically arranged threaded rod 22, and an internal threaded hole 23 is provided in the middle of the first drive shaft 9, and the internal threaded hole passes through the lower end of the first drive shaft 9, and the upper end of the threaded rod 22 passes through the second drive shaft 10 and is threadedly connected to the internal threaded hole 23, and a vertically arranged sliding rod 24 is fixedly installed in the piston chamber 20, and the sliding rod 24 passes through the piston plate 21 and is slidably connected to the piston plate 21.

[0066] During use, when the slide plate 16 is disengaged from the second slide groove 29 and is located in the first slide groove 29, the first drive shaft 9 no longer drives the second drive shaft 10 to rotate synchronously when it rotates forward. At this time, when the first drive shaft 9 continues to rotate, the threaded rod 22 is driven to move downward by relying on the threaded connection between the internal threaded hole 23 and the threaded rod 22, and the piston plate 21 is driven to move downward. When the piston plate 21 moves downward, it squeezes the inside of the piston cavity 20, and relies on the pipeline to transport the liquid in the piston cavity 20 to the expansion structure, thereby driving the expansion structure to expand, and relying on the expansion structure to drive the C-type wear-resistant plate 5 to move. When the C-type wear-resistant plate 5 moves to a certain position, the circulation of the pipeline is blocked;

[0067] When the pipeline needs to be opened, the first drive shaft 9 is driven to rotate in the opposite direction. When the first drive shaft 9 rotates in the opposite direction, the threaded rod 22 is driven to move upward by the threaded connection between the internal threaded hole 23 and the threaded rod 22. When the threaded rod 22 moves upward, the piston plate 21 is also driven to move upward. When the piston plate 21 moves upward, it no longer squeezes the piston cavity 20. At this time, the expansion structure contracts, driving the C-type wear-resistant plate 5 to move, so that the C-type wear-resistant plate 5 returns to its initial state.

[0068] When the first drive shaft 9 continues to rotate in the opposite direction, the movable plate 17 moves downward to a certain position, so that the slide plate 16 is slidably connected in the first slot 14 and the second slot 15. The movement of the slide plate 16 drives the second drive shaft 10 to rotate. When the second drive shaft 10 rotates, the C-shaped sphere 4 is driven to rotate. When the C-shaped sphere 4 rotates to a certain position, the pipeline is opened.

[0069] The slide rod 24 can improve the stability of the piston plate 21 and prevent the piston plate 21 from rotating when the threaded rod 22 rotates.

[0070] In order to expand the expansion pad 25, for example, Figure 3 、 Figure 4 As shown, the present invention also includes that the expansion structure includes an expansion pad 25, one side of the expansion pad 25 is in extrusion contact with the C-type wear-resistant plate 5, and the lower end of the piston cavity 20 is provided with a liquid outlet 26, and the liquid outlet 26 is connected to the expansion pad 25 through a pipeline.

[0071] During use, when the piston plate 21 moves downward and squeezes, the liquid in the piston chamber 20 is discharged through the liquid outlet 26 and transported to the expansion pad 25 through the pipeline. The expansion of the expansion pad 25 drives the C-shaped wear-resistant plate 5 to move, and the C-shaped wear-resistant plate 5 blocks the liquid in the pipeline, thereby improving the convenience of use and reducing the friction on the C-shaped wear-resistant plate 5.

[0072] When the piston plate 21 returns to its original state, the liquid in the expansion pad 25 is transported back to the piston cavity 20 through the pipeline, thereby returning to the original state and facilitating the opening of the pipeline.

[0073] In order to improve the expansion effect of the expansion pad 25, for example, Figure 8 As shown, the present invention also includes that a pressure relief valve 27 is provided above the piston plate 21, and the pressure relief valve 27 is connected to the lower part of the piston chamber 20, and a one-way liquid inlet valve 28 is provided below the piston plate 21, and the one-way liquid inlet valve 28 is connected to the piston chamber 20 near one end of the threaded rod 22.

[0074] During use, when the expansion pad 25 expands to its limit, when the piston plate 21 continues to move downward, the liquid in the piston chamber 20 will enter the upper part of the piston chamber 20 through the pressure relief valve 27, thereby improving the use effect;

[0075] When the threaded rod 22 moves upward, it drives the piston plate 21 to move upward. After the piston plate 21 moves to a certain position, it squeezes the upper part of the piston cavity 20, so that the liquid in the upper part of the piston cavity 20 enters the lower part of the piston cavity 20 again through the one-way liquid inlet valve 28, thereby facilitating the next expansion of the expansion pad 25.

[0076] In order to improve the movement stability of the C-type wear-resistant plate 5, for example, Figure 11 As shown, the present invention also includes that two groups of horizontally arranged sliding grooves 29 are provided in the C-shaped sphere 4, and two groups of horizontally arranged sliders 30 are provided on the side of the C-shaped wear-resistant plate 5 close to the C-shaped sphere 4, and the C-shaped wear-resistant plate 5 is slidably connected to the sliding grooves 29 in the C-shaped sphere 4 through the sliders 30.

[0077] During use, when the C-shaped wear-resistant plate 5 moves, the sliding connection between the slider 30 and the slide groove 29 can improve the movement stability of the C-shaped wear-resistant plate 5.

[0078] When the present invention is in use, when it is necessary to close the C-type ball valve, the first drive shaft 9 is driven to rotate forward, so that the movable plate 17 is slidably connected with the spiral groove 13, and the movable plate 17 drives the slide plate 16 to move. Since the slide plate 16 is located in the first slot 14 and the second slot 15, when the first drive shaft 9 rotates forward, the slide plate 16 drives the second drive shaft 10 to rotate synchronously. When the second drive shaft 10 rotates, the C-type sphere 4 is driven to rotate. When the C-type sphere 4 rotates to a certain position, the C-type wear-resistant plate 5 on one side of the C-type sphere 4 corresponds to the liquid inlet pipe 2.

[0079] When the movable plate 17 moves up to a certain position along with the spiral groove 13, the slide plate 16 is no longer in contact with the second slot 15 and is located in the first slot 14. At this time, the first drive shaft 9 no longer drives the second drive shaft 10 to rotate synchronously when it rotates forward. When the first drive shaft 9 continues to rotate, the threaded connection between the internal threaded hole 23 and the threaded rod 22 drives the threaded rod 22 to move downward, and drives the piston plate 21 to move downward. When the piston plate 21 moves downward, it squeezes the inside of the piston chamber 20, so that the liquid in the piston chamber 20 is transported to the expansion pad 25 through the liquid outlet 26 and the pipeline. The expansion of the expansion pad 25 drives the C-type wear-resistant plate 5 to move, and relies on the C-type wear-resistant plate 5 to block the liquid in the pipeline, thereby closing the C-type ball valve;

[0080] When the C-type ball valve needs to be opened, the first drive shaft 9 is driven to rotate in the opposite direction. When the first drive shaft 9 rotates in the opposite direction, the threaded rod 22 is driven to move upward by the threaded connection between the internal threaded hole 23 and the threaded rod 22. When the threaded rod 22 moves upward, the piston plate 21 is also driven to move upward. When the piston plate 21 moves upward, it no longer squeezes the piston cavity 20. At this time, the expansion pad 25 contracts, driving the C-type wear-resistant plate 5 to move, so that the C-type wear-resistant plate 5 returns to its initial state.

[0081] When the first drive shaft 9 continues to rotate in the opposite direction, the movable plate 17 moves down to a certain position, so that the slide plate 16 is slidably connected in the first slot 14 and the second slot 15. The movement of the slide plate 16 drives the second drive shaft 10 to rotate. When the second drive shaft 10 rotates, it drives the C-type sphere 4 to rotate. When the C-type sphere 4 rotates to a certain position, the C-type ball valve is opened.

[0082] It should be noted that the pipeline described in the present invention is arranged inside the C-shaped sphere 4 , one end of the pipeline is connected to the liquid outlet 26 , and the other end of the pipeline is connected to the expansion pad 25 .

[0083] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above-described embodiments. The above-described embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. C-type wear-resistant ball valve, characterized by: The invention comprises a valve body (1), wherein one end of the valve body (1) is provided with a liquid inlet pipe (2), and the end of the valve body (1) away from the liquid inlet pipe (2) is provided with a liquid outlet pipe (3), and is characterized in that a C-shaped sphere (4) is provided inside the valve body (1), the outer side of the C-shaped sphere (4) is provided with a groove, a C-shaped wear-resistant plate (5) is slidably connected in the groove, an expansion structure is provided inside the groove, and the expansion structure is located on the side of the C-shaped wear-resistant plate (5) close to the C-shaped sphere (4); a positioning bracket (6) is provided on the top of the valve body (1), a driving structure (7) is provided in the middle of the positioning bracket (6), the lower end of the driving structure (7) is fixedly connected to the upper end of the C-shaped sphere (4), the bottom of the valve body (1) is fixedly connected to the rotating seat (8), and the lower end of the C-shaped sphere (4) is rotatably connected to the rotating seat (8); The driving structure (7) comprises a first driving shaft (9) and a second driving shaft (10); a hydraulic structure is provided inside the second driving shaft (10); the hydraulic structure is driven when the first driving shaft (9) and the second driving shaft (10) rotate relative to each other; and the hydraulic structure is connected to the expansion structure through a pipeline; An adjustment structure (11) is provided on the outside of the driving structure (7), the adjustment structure (11) is fixedly connected to the positioning bracket (6), and the adjustment structure (11) is used to control the first driving shaft (9) and the second driving shaft (10) to rotate synchronously and relatively; The regulating structure (11) comprises a housing (12), wherein a spiral groove (13) is provided in the housing (12); The adjustment structure (11) further comprises a plurality of groups of first slots (14) vertically arranged on the outer side of the lower end of the first drive shaft (9), and a plurality of groups of second slots (15) vertically arranged on the outer side of the upper end of the second drive shaft (10), wherein the first slots (14) correspond to the second slots (15), and a slide plate (16) is slidably connected in the first slots (14) and the second slots (15), and a horizontally arranged movable plate (17) is provided on the outer side of the upper portion of the movable plate (16), and the movable plate (17) is slidably connected to the spiral groove (13); The hydraulic structure includes a piston chamber (20) arranged inside the second drive shaft (10), the piston chamber (20) is filled with liquid, a piston plate (21) is sealed and slidably connected in the piston chamber (20), the upper surface of the piston plate (21) is fixedly connected to a vertically arranged threaded rod (22), an internal threaded hole (23) is provided in the middle of the first drive shaft (9), the internal threaded hole (23) passes through the lower end of the first drive shaft (9), the upper end of the threaded rod (22) passes through the second drive shaft (10) and is threadedly connected to the internal threaded hole (23), a vertically arranged sliding rod (24) is fixedly installed in the piston chamber (20), the sliding rod (24) passes through the piston plate (21) and is slidably connected to the piston plate (21); The expansion structure comprises an expansion pad (25), one side of the expansion pad (25) is in compression contact with the C-shaped wear-resistant plate (5), and a liquid outlet hole (26) is provided at the lower end of the piston cavity (20), and the liquid outlet hole (26) is communicated with the expansion pad (25) through a pipeline.

2. The C-type wear-resistant ball valve according to claim 1, characterized in that: Two groups of stoppers (18) are provided on the inner wall of the shell (12), and both groups of stoppers (18) are located below the spiral groove (13). Two groups of fixed blocks (19) are provided on the outer side of the second drive shaft (10), and the two groups of fixed blocks (19) are slidably connected to the two groups of stoppers (18) respectively.

3. The C-type wear-resistant ball valve according to claim 2, characterized in that: A pressure relief valve (27) is provided above the piston plate (21), and the pressure relief valve (27) is connected to the lower part of the piston chamber (20). A one-way liquid inlet valve (28) is provided below the piston plate (21), and the one-way liquid inlet valve (28) is connected to the piston chamber (20) near one end of the threaded rod (22).

4. The C-type wear-resistant ball valve according to claim 1, characterized in that: Two groups of horizontally arranged chutes (29) are provided in the C-shaped sphere (4), and two groups of horizontally arranged sliders (30) are provided on one side of the C-shaped wear-resistant plate (5) close to the C-shaped sphere (4). The C-shaped wear-resistant plate (5) is slidably connected to the chutes (29) in the C-shaped sphere (4) through the sliders (30).

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