High-density adjustable hard sealing ball valve

Abstract

The invention discloses a high-density adjustable hard sealing ball valve, and belongs to the field of hard sealing ball valves, the high-density adjustable hard sealing ball valve comprises an outer shell, a rotating part is mounted in the outer shell, the rotating part comprises two first rotating plates which are symmetrical to each other, and the first rotating plates are fixedly mounted in the outer shell; two symmetrical second rotating plates are rotatably installed between the two first rotating plates, a connecting support is fixedly installed between the two second rotating plates, two symmetrical valve parts are fixedly installed on the connecting support and used for controlling on-off of liquid, and a maintenance part is installed on the side, away from the second rotating plates, of one first rotating plate. Through the arrangement of the rotating part, circulation of liquid is automatically cut off along with rotation of the rotating part until the next valve part rotates to the working position, so that the device can cope with sudden fault conditions, and even under the condition that the liquid flows, liquid input does not need to be cut off, and the liquid can be directly replaced.

Description

Technical Field

[0001] The invention relates to the field of hard-sealed ball valves, and more particularly to a high-density adjustable hard-sealed ball valve. Background Art

[0002] A hard-sealed ball valve is a ball valve whose ball and sealing surface are both made of hard materials, and its sealing pair (i.e., the valve seat sealing surface and the ball sealing surface) is usually metal-to-metal. According to the structural form, hard-sealed ball valves can be divided into floating ball type and fixed ball type; according to the connection form, they can be divided into flange connection, welding connection and threaded connection. In addition, hard-sealed ball valves can also be divided into two types: one-way sealing and two-way sealing. One-way sealing can only seal in the specified direction, i.e., the sealing direction indicated on the ball valve, while two-way sealing can seal in both directions.

[0003] When using a traditional hard-sealed ball valve, it may become unable to close or open due to wear and tear caused by long-term use. When delivering some drugs or chemical raw materials, it is often necessary to strictly control the delivery volume of the raw materials. If the valve fails, it is easy to cause errors in the delivery volume of the raw materials, which in turn leads to processing failure or even danger. When delivering different liquids, the fluidity of the liquid and the particle size contained in it are different. If the same valve is used, it is easy to accelerate the wear of the valve and increase the probability of failure.

[0004] In view of this, in order to solve the above-mentioned shortcomings, the present invention develops a high-density adjustable hard-sealed ball valve. Summary of the invention

[0005] In view of the problems existing in the prior art, the purpose of the present invention is to provide a high-density adjustable hard-sealed ball valve, which can conveniently replace different types of valve cores, facilitate changing the type of valve core according to the transported liquid to reduce valve loss, and can be replaced without cutting off the liquid input.

[0006] To solve the above problems, the present invention adopts the following technical solutions.

[0007] A high-density adjustable hard-sealed ball valve comprises an outer shell, a rotating component is installed inside the outer shell, the rotating component comprises two mutually symmetrical first rotating plates, the first rotating plates are fixedly installed inside the outer shell, two mutually symmetrical second rotating plates are rotatably installed between the two first rotating plates, a connecting bracket is fixedly installed between the two second rotating plates, two mutually symmetrical valve components are fixedly installed on the connecting bracket, the valve components are used to control the on and off of liquid, and a maintenance component is installed on one side of one of the first rotating plates away from the second rotating plate;

[0008] A first through slot is provided at the upper end of the first rotating plate, a second through slot is provided at the lower end of the first rotating plate, a third through slot is provided on one side of the first rotating plate, and two fourth through slots are provided at positions of the second rotating plate corresponding to the first through slot and the second through slot, and the valve component is installed at the fourth through slot, and an upper pressing plate and a lower pressing plate are fixedly installed on the sides of the two first rotating plates close to each other, and the upper pressing plate and the lower pressing plate are respectively located on the upper and lower sides of the first through slot, and a plurality of evenly distributed protrusions are integrally formed on the sides of the upper pressing plate and the lower pressing plate close to each other, and the upper pressing plate and the lower pressing plate are used to seal the valve component.

[0009] Furthermore, the valve component includes two mutually symmetrical side support rings, and the two side support rings are respectively fixedly mounted on the corresponding second rotating plates, and an upper cover body and a lower cover body that are symmetrically mounted between the two side support rings are slidably mounted, and the lower cover body is located below the upper cover body, and the upper cover body and the lower cover body are spliced ​​to form a chamber, and a spherical valve core is provided inside the chamber, and sleeves are fixedly mounted on the upper and lower ends of the spherical valve core, and the ends of the two sleeves that are away from each other are both mounted with hexagonal bolts through threaded cooperation, and a second L-shaped clamp is fixedly mounted on the upper surface of the upper hexagonal bolt, and the upper cover body and the lower cover body are slidably sleeved on the corresponding outer surface of the sleeve.

[0010] Furthermore, upper arc pieces are fixedly installed on both sides of the upper cover body, and lower arc pieces are fixedly installed on both sides of the lower cover body, and the upper arc pieces and the lower arc pieces are respectively affixed to the upper and lower surfaces of the corresponding side support rings, and side support blocks are fixedly installed on both sides of the upper cover body adjacent to the upper arc pieces, and support cylinders are fixedly installed on the side support blocks and the lower cover body, a support spring is fixedly connected between the two support cylinders, and a side plate is fixedly installed on the lower surface of the side support block, and the side plate is slidably clamped on the side wall of the lower cover body.

[0011] Furthermore, a pneumatic actuator is fixedly mounted on the upper surface of the external shell, a first L-shaped clamp is rotatably mounted on the internal upper surface of the external shell, the first L-shaped clamp is fixedly mounted on the driving end of the pneumatic actuator, a stepper motor is fixedly mounted on the external side of the external shell, the driving end of the stepper motor passes through the external shell and is fixedly mounted on the middle part of the second rotating plate, a fan is fixedly mounted on the external side of the external shell, the output end of the fan passes through the external shell and is fixedly mounted at the position of the third through slot, an air outlet duct is fixedly mounted on the third through slot on the first rotating plate away from the fan side, and the air outlet duct extends to the outside of the external shell.

[0012] Furthermore, a liquid inlet pipe is fixedly installed on one side of the upper end of the outer shell, and a liquid outlet pipe is fixedly installed on the side of the upper end of the outer shell away from the liquid outlet pipe. Both the liquid inlet pipe and the liquid outlet pipe extend into the interior of the outer shell and are fixedly installed on the corresponding first through groove, and the maintenance component is located below the liquid outlet pipe.

[0013] Furthermore, the maintenance component includes a maintenance pipe, which is fixedly installed on one side of the second through groove. The maintenance pipe is connected to the interior of the liquid outlet pipe through a connecting pipe. A piston is provided on the internal sliding card of the connecting pipe. A worm wheel and a worm are rotatably installed inside the maintenance pipe. The worm wheel and the worm are meshed with each other. A winding wheel is rotatably installed on the worm. Check pieces are fixedly installed at both ends of the worm, and the check pieces only allow the worm to rotate in one direction.

[0014] Furthermore, the check member includes a ferrule, one of which is fixedly mounted on the side surface of the winding wheel, and the other ferrule is fixedly mounted on the inner wall of the maintenance pipe, a center rotating plate is rotatably mounted inside the ferrule, an outer surface of the center rotating plate has a plurality of evenly distributed elastic sheets, a plurality of latch teeth used in conjunction with the elastic sheets are integrally formed inside the ferrule, and the winding wheel is connected to the piston by a rope.

[0015] Furthermore, feeding pipes are fixedly installed at both upper and lower ends of the interior of the maintenance pipe, an auger is rotatably installed inside the feeding pipe, one side of the worm gear is connected to one end of the auger through a chain, and two oil outlet pipes corresponding to the feeding pipes are fixedly installed inside the side support ring close to the maintenance component side, and the oil outlet pipe extends to the surface of the spherical valve core away from one end of the feeding pipe.

[0016] Furthermore, an oil storage box is fixedly installed on the upper surface of the maintenance pipeline, and a connecting shell is fixedly installed on the lower surface of the oil storage box, and the connecting shell is communicated with both feeding pipes.

[0017] Furthermore, an opening is formed at one end of the oil outlet pipe away from the feeding pipe.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. This solution sets a rotating component, which automatically cuts off the flow of liquid as the rotating component rotates until the next valve component rotates to the working position, so that the device can cope with sudden failures. Even if the liquid is flowing, there is no need to cut off the input of the liquid, and it can be replaced directly.

[0020] 2. This solution can take away the liquid and some solid particles on the surface of the spherical valve core, so that the spherical valve core is in a clean state. When replacing the valve parts, the surface of the spherical valve core and the interior of the upper cover and the lower cover can be automatically cleaned and dried. On the one hand, it can prevent the liquid from entering the connection position and causing rust. On the other hand, it can take away the residual liquid and solid residue to facilitate subsequent maintenance and replacement operations.

[0021] 3. This device can process and utilize the force generated by water hammer when replacing valve parts. When water hammer occurs, it can apply lubricating oil to valve parts in non-working positions and automatically maintain the spherical valve core. There is no need for workers to apply lubricating oil to the spherical valve core. The force of water hammer can be recovered and automatically maintained.

[0022] 4. This device sets a plurality of valve components and sets the spherical valve core inside the valve component to different specifications and sizes, so that different valve cores can be quickly replaced for different liquids, and the replaced valve core can be automatically cleaned and maintained after replacement. Different valve cores are used for different liquids, so that the valve core can be more adapted to the liquid and the possibility of the valve core being damaged is reduced.

[0023] 5. When the valve components are damaged, the stepper motor can be controlled to drive the rotating components to work, and then the valve components can be switched from the working position. At this time, the hexagonal bolts can be rotated in the opposite direction to disassemble the upper cover and the lower cover, so as to quickly replace or maintain the spherical valve core without affecting the normal operation of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the high-density adjustable hard-sealed ball valve of the present invention;

[0025] Figure 2 It is a schematic diagram of the structure inside the external shell of the present invention;

[0026] Figure 3 It is a schematic diagram of the connection structure of the rotating component, the valve component and the maintenance component in the present invention;

[0027] Figure 4 It is a schematic diagram of the structure of the rotating component in the present invention;

[0028] Figure 5 It is a structural schematic diagram of the valve component in the present invention;

[0029] Figure 6 An exploded view of the valve component of the present invention;

[0030] Figure 7 It is a structural schematic diagram of the spherical valve core in the present invention;

[0031] Figure 8 It is a schematic diagram of the connection structure between the maintenance pipeline and the liquid outlet pipe in the present invention;

[0032] Fig. 9 It is a structural schematic diagram of the maintenance component in the present invention;

[0033] Fig.10 It is a structural schematic diagram of the check member in the present invention.

[0034] Description of the numbers in the figure:

[0035] 1. External shell; 2. Rotating parts; 3. Valve parts; 4. Maintenance parts; 11. Liquid inlet pipe; 12. Liquid outlet pipe; 13. Fan; 14. Stepper motor; 15. Pneumatic actuator; 21. First rotating plate; 22. Second rotating plate; 23. Connecting bracket; 24. Upper clamping plate; 25. Lower clamping plate; 31. Side support ring; 32. Upper cover; 33. Lower cover; 34. Ball valve core; 41. Maintenance pipeline; 42. Connecting pipe; 43. Oil storage box; 44. Feeding pipe; 45. Worm gear; 46. Worm; 47. Check piece; 48. Winding wheel ;131, air outlet duct;151, first L-shaped clamp;211, first through slot;212, second through slot;213, third through slot;221, fourth through slot;251, bump;311, oil outlet pipeline;321, upper arc-shaped sheet;322, side support block;323, support cylinder;324, support spring;325, side plate;331, lower arc-shaped sheet;341, sleeve;342, hexagonal bolt;343, second L-shaped clamp;421, piston;431, connecting shell;441, auger;471, ferrule;472, center rotating plate. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0037] See also Figures 1 to 10A high-density adjustable hard-sealed ball valve comprises an outer shell 1, a pneumatic actuator 15 is fixedly mounted on the upper surface of the outer shell 1, a rotating component 2 is mounted inside the outer shell 1, a liquid inlet pipe 11 is fixedly mounted on one side of the upper end of the outer shell 1, a liquid outlet pipe 12 is fixedly mounted on the side of the upper end of the outer shell 1 away from the liquid outlet pipe 12, the rotating component 2 comprises two mutually symmetrical first rotating plates 21, a first through groove 211 is formed at the upper end of the first rotating plate 21, a second through groove 212 is formed at the lower end of the first rotating plate 21, the first rotating plate 21 is fixedly mounted inside the outer shell 1, and two mutually symmetrical through grooves 211 are rotatably mounted between the two first rotating plates 21. A second rotating plate 22, a connecting bracket 23 is fixedly installed between the two second rotating plates 22, and two symmetrical valve components 3 are fixedly installed on the connecting bracket 23. The valve component 3 is used to control the on-off of the liquid. A maintenance component 4 is installed on the side of one of the first rotating plates 21 away from the second rotating plate 22, and a stepper motor 14 is fixedly installed on the outer side of the external shell 1. The driving end of the stepper motor 14 passes through the external shell 1 and is fixedly installed in the middle of the second rotating plate 22. The liquid inlet pipe 11 and the liquid outlet pipe 12 both extend into the interior of the external shell 1 and are fixedly installed on the corresponding first through groove 211. The maintenance component 4 is located below the liquid outlet pipe 12.

[0038] During actual use, in the initial state, the liquid inlet pipe 11, the first through groove 211, the fourth through groove 221 above, and the liquid outlet pipe 12 are connected. The liquid is input from the liquid inlet pipe 11 and enters the interior of the valve component 3 through the first through groove 211 and the fourth through groove 221 above. The opening and closing state of the valve component 3 can be changed by controlling the operation of the pneumatic actuator 15, thereby controlling the on and off of the liquid. When using a traditional ball valve, it may cause wear and tear due to long-term use and then fail, resulting in a situation where it cannot be closed or opened. When delivering some drugs or some chemical raw materials, it is often necessary to strictly control the delivery amount of the raw materials. If the valve fails, it is easy to cause an error in the delivery amount of the raw materials, which in turn leads to processing failure or even danger. When delivering different liquids, the fluidity of the liquid and the particle size contained inside are different. If the same valve is used, it is easy to accelerate the wear of the valve and increase the probability of failure.

[0039] Therefore, by setting a rotating part 2, the device can control the stepper motor 14 to drive the rotating part 2 to work and replace the lower valve part 3 to the working position when one of the valve parts 3 fails and cannot be closed. At this time, the damaged valve part 3 will be replaced to the maintenance position below the rotating part 2, and can be replaced even when the liquid is flowing. During the replacement process, the first through groove 211 and the fourth through groove 221 are staggered, so that the first through groove 211 is blocked by the second rotating plate 22, and the circulation of the liquid is automatically cut off as the rotating part 2 rotates until the next valve part 3 rotates to the working position, so that the device can cope with sudden failures. Moreover, even when the liquid is flowing, there is no need to cut off the input of the liquid, and the replacement can be carried out directly.

[0040] A third through groove 213 is provided on one side of the first rotating plate 21, and two fourth through grooves 221 are provided at positions of the second rotating plate 22 corresponding to the first through groove 211 and the second through groove 212. The valve component 3 is installed at the fourth through groove 221. An upper clamping plate 24 and a lower clamping plate 25 are fixedly installed on the sides of the two first rotating plates 21 close to each other. The upper clamping plate 24 and the lower clamping plate 25 are respectively located on the upper and lower sides of the first through groove 211, and the sides of the upper clamping plate 24 and the lower clamping plate 25 close to each other are integrated. A plurality of evenly distributed protrusions 251 are formed, and the upper pressing plate 24 and the lower pressing plate 25 are used to seal the valve component 3. The fan 13 is fixedly installed on the outer side of the external shell 1, and the output end of the fan 13 passes through the external shell 1 and is fixedly installed at the position of the third through groove 213. The third through groove 213 on the first rotating plate 21 away from the side of the fan 13 is fixedly installed with the air outlet pipe 131, and the air outlet pipe 131 extends to the outside of the external shell 1, and the protrusion 251 is used to further press the valve component 3.

[0041] When the stepper motor 14 drives the connecting bracket 23 and the second rotating plate 22 to rotate, the valve component 3 leaves the side of the first through groove 211 and is rotated to the position of the third through groove 213. At this time, the valve component 3 and the fourth through groove 221 are connected with the third through groove 213, and the upper clamping plate 24 and the lower clamping plate 25 lose their locking effect on the valve component 3. The valve component 3 is released to produce a chamber for gas flow. At this time, the fan 13 works to drive the gas from the fourth through groove 221 and the third through groove 213 into the interior of the valve component 3, so that all the liquid and cabinet residues remaining in the valve component 3 can be blown out of the valve component 3 through the air outlet pipe 131, and the valve component 3 can be kept dry.

[0042] The valve component 3 includes two symmetrical side support rings 31, and the two side support rings 31 are respectively fixedly mounted on the corresponding second rotating plate 22, and an upper cover body 32 and a lower cover body 33 are symmetrically mounted between the two side support rings 31. The lower cover body 33 is located below the upper cover body 32, and the upper cover body 32 and the lower cover body 33 are spliced ​​to form a chamber, and a spherical valve core 34 is provided inside the chamber, and sleeves 341 are fixedly mounted on the upper and lower ends of the spherical valve core 34, and the ends of the two sleeves 341 away from each other are both threadedly mounted with hexagonal bolts 342, and a second L-shaped clamp 343 is fixedly mounted on the upper surface of the upper hexagonal bolt 342, and the upper cover body 32 and the lower cover body 33 are slidably mounted on the outer surface of the corresponding sleeve 341, and upper arc pieces 321 are fixedly mounted on both sides of the upper cover body 32, and lower arc pieces 331 are fixedly mounted on both sides of the lower cover body 33. The upper and lower parts of the cam 32 are provided with support plates for providing sliding action for the upper cover body 32 and the lower cover body 33. The lengths of the upper pressing plate 24 and the lower pressing plate 25 can press the upper arc-shaped piece 321 and the lower arc-shaped piece 321, and will not collide with the support plates when rotating. The upper arc-shaped piece 321 and the lower arc-shaped piece 331 are respectively attached to the upper and lower surfaces of the corresponding side support rings 31. The upper cover body 32 is fixedly installed with side support blocks 322 on both sides adjacent to the upper arc-shaped piece 321. Support cylinders 323 are fixedly installed on the side support blocks 322 and the lower cover body 33. A support spring 324 is fixedly connected between the two support cylinders 323. A side plate 325 is fixedly installed on the lower surface of the side support block 322. The side plate 325 is slidably clamped on the side wall of the lower cover body 33. The first L-shaped clamp 151 is rotatably installed on the inner upper surface of the external shell 1, and the first L-shaped clamp 151 is fixedly installed on the driving end of the pneumatic actuator 15.

[0043] When the valve component 3 is located on one side of the first through groove 211, the upper arc piece 321 and the lower arc piece 331 are clamped by the upper clamping plate 24 and the lower clamping plate 25, and the lower clamping plate 25 can increase the connection tightness between the upper arc piece 321 and the lower arc piece 331 and the side support ring 31. At this time, the upper cover body 32 and the lower cover body 33 will be driven to clamp the side support ring 31, and the upper cover body 32 and the lower cover body 33 will also be driven to seal. With the rotation of the connecting bracket 23 and the second rotating plate 22, the upper clamping plate 24 and the lower clamping plate 25 lose their clamping effect on the upper arc piece 321 and the lower arc piece 331, and the upper cover body 32 and the lower cover body 33 will be pushed away from each other under the action of the supporting spring 324. The spherical valve core 34 is separated from the upper cover 32 and the lower cover 33 until it is supported by the hexagonal bolt 342. At this time, the spherical valve core 34 is still located in the middle position of the upper cover body 32 and the lower cover body 33, and a gap is generated between the spherical valve core 34 and the upper cover body 32 and the lower cover body 33. Then, the stepper motor 14 can drive the airflow to pass through the gap, and at the same time, the liquid and some solid particles on the surface of the spherical valve core 34 can be taken away together, so that the spherical valve core 34 is in a clean state. When the valve component 3 is replaced, the surface of the spherical valve core 34 and the interior of the upper cover body 32 and the lower cover body 33 can be automatically cleaned and dried, so as to prevent the liquid from entering the connection position to cause rust, and to take away the residual liquid and solid residue for subsequent maintenance and replacement operations.

[0044] When the valve component 3 is driven to rotate by the connecting bracket 23 and the second rotating plate 22, will the second L-shaped clamp 343 lose the connection with the first L-shaped clamp 151? The first L-shaped clamp 151 and the hexagonal bolt 342 are concentrically designed, so when the first L-shaped clamp 151 and the second L-shaped clamp 343 are in a concentric position, even if no bolts are used for connection, the first L-shaped clamp 151 can drive the second L-shaped clamp 343 to rotate. The first L-shaped clamp 151 will only drive the second L-shaped clamp 343 to rotate in the locking direction, thereby driving the sleeve 341 and the spherical valve core 34 to rotate, thereby changing the working state of the valve component 3.

[0045] The maintenance component 4 includes a maintenance pipeline 41, which is fixedly installed on one side of the second through groove 212. The maintenance pipeline 41 is connected to the interior of the liquid outlet pipe 12 through a connecting pipe 42. A piston 421 is provided in the internal sliding card of the connecting pipe 42. A worm wheel 45 and a worm 46 are rotatably installed in the maintenance pipeline 41. The worm wheel 45 and the worm 46 are meshed with each other. A winding wheel 48 is rotatably installed on the worm 46. Both ends of the worm 46 are fixedly installed with a check piece 47. The check piece 47 only allows the worm 46 to rotate in one direction. The check piece 47 includes a ferrule 471, one of which is fixedly installed on the side surface of the winding wheel 48, and the other ferrule 471 is fixedly installed on the inner wall of the maintenance pipeline 41. A central rotating plate 472 is rotatably installed in the ferrule 471. The outer surface of the central rotating plate 472 has a plurality of evenly distributed elastic sheets. The interior of the ferrule 471 is integrally formed with a plurality of latch teeth used in conjunction with the elastic sheets. The winding wheel 48 is connected to the piston 421 through a rope.

[0046] Because in the production of some medicines and the preparation of chemical products, it is necessary to strictly control the liquid flow, and then it is necessary to open and close quickly. When the valve is started and closed quickly, water hammer will occur at the rear end of the valve. The water hammer phenomenon is that the valve core is closed quickly, causing the liquid to be cut off, and the cut-off liquid still has a certain kinetic energy. At this time, a vacuum will be generated in the pipeline, and under the action of atmospheric pressure, the liquid will be quickly sucked back to the valve core position, which will cause the pipeline to be impacted by the liquid and produce water hammer. Traditionally, when dealing with this problem, water hammer eliminators are often used to eliminate the generated force, which will lead to energy waste and the force generated by the water hammer cannot be utilized.

[0047] Furthermore, the device is provided with a maintenance component 4. When water hammer occurs, the piston 421 will be sucked up and slide, and then the winding wheel 48 will be driven to rotate through the rope. When the winding wheel 48 rotates, it will drive one of the ferrules 471 to rotate. At this time, the elastic sheet on the central rotating plate 472 is blocked by the internal teeth of the ferrule 471, so that the central rotating plate 472 and the ferrule 471 rotate synchronously, and the other check member 47 will have an opposite effect. At this time, the worm 46 is driven to rotate, and then the worm 46 will drive the worm wheel 45 to rotate. Because the interior of the maintenance pipe 41 is relatively sealed, when the piston 421 rises, negative pressure will be generated inside the maintenance pipe 41. When the force of the water flow is eliminated, the piston 421 will drop again under the drive of the negative pressure. A torsion spring is installed between the winding wheel 48 and the maintenance pipe 41, so that the winding wheel 48 can automatically reel in the excess rope. At this time, the other check member 47 will jam the worm 46 so that it cannot rotate in the opposite direction, thereby preventing the worm 46 from reversing and driving the worm wheel 45 to reverse.

[0048] Feeding pipes 44 are fixedly installed at both upper and lower ends of the maintenance pipe 41, an oil storage box 43 is fixedly installed on the upper surface of the maintenance pipe 41, and a connecting shell 431 is fixedly installed on the lower surface of the oil storage box 43. The connecting shell 431 is connected to the two feeding pipes 44, and an auger 441 is rotatably installed inside the feeding pipe 44. One side of the worm gear 45 is connected to one end of the auger 441 through a chain. Two oil outlet pipes 311 corresponding to the feeding pipes 44 are fixedly installed inside the side support ring 31 close to the maintenance component 4. The oil outlet pipe 311 extends to the surface of the spherical valve core 34 at one end away from the feeding pipe 44, and an opening is opened at one end of the oil outlet pipe 311 away from the feeding pipe 44.

[0049] When the lower valve component 3 is rotated to the position of the first through groove 211, the upper valve component 3 will be rotated to the position of the second through groove 212. At this time, the oil outlet pipe 311 coincides with the feeding pipe 44. Because the surface of the spherical valve core 34 of the valve component 3 is relatively clean after being cleaned by the stepper motor 14, water hammer will be generated as the upper valve component 3 is opened and closed. The worm gear 45 will be driven to rotate intermittently. When the worm gear 45 is driven to rotate, the auger 441 will be driven to rotate through the chain. Before use, the inside of the oil storage box 43 is filled with valve sealing grease. When the auger 441 is driven to rotate, the lubricating oil will be squeezed into the inside of the lower arc-shaped piece 331. When the valve component 3 is located at the first through groove 211, the oil outlet pipe 311 will be squeezed and fitted on the spherical valve by the upper cover body 32 and the lower cover body 33. The surface of the spherical valve core 34 is in a closed state. When the valve component 3 rotates to the position of the second through groove 212, the upper cover body 32 and the lower cover body 33 are separated, resulting in the opening on the oil outlet pipe 311 being in an open state. Then, as the water hammer occurs, the auger 441 can be driven to squeeze the lubricating oil onto the upper and lower surfaces of the spherical valve core 34. When the valve component 3 is driven to rotate, the upper cover body 32 and the lower cover body 33 are squeezed to squeeze the lubricating oil to various parts of the surface of the spherical valve core 34, so that the device can process and utilize the force generated by the water hammer when replacing the valve component 3. When the water hammer occurs, the valve component 3 in the non-working position can be lubricated, and the spherical valve core 34 can be automatically maintained without the need for workers to apply lubricating oil to the spherical valve core 34. The force of the water hammer can be recovered and automatically maintained.

[0050] The device is provided with a plurality of valve components 3, and the spherical valve core 34 inside the valve component 3 is set to different specifications and sizes, so that different valve cores can be quickly replaced for different liquids, and the replaced valve core can be automatically cleaned and maintained after replacement. Different valve cores are used for different liquids, thereby reducing the possibility of the valve core being damaged.

[0051] When the valve component 3 is damaged, the stepper motor 14 can be controlled to drive the rotating component 2 to work, thereby switching the valve component 3 from the working position. At this time, the hexagonal bolt 342 can be rotated in the opposite direction to disassemble the upper cover body 32 and the lower cover body 33, so as to quickly replace or maintain the spherical valve core 34 without affecting the normal operation of the device.

[0052] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-density adjustable hard-seal ball valve, comprising an outer shell (1), characterized in that: A rotating component (2) is installed inside the outer shell (1), and the rotating component (2) comprises two mutually symmetrical first rotating plates (21), the first rotating plates (21) are fixedly installed inside the outer shell (1), two mutually symmetrical second rotating plates (22) are rotatably installed between the two first rotating plates (21), a connecting bracket (23) is fixedly installed between the two second rotating plates (22), and two mutually symmetrical valve components (3) are fixedly installed on the connecting bracket (23), and the valve components (3) are used to control the on and off of liquid, and a maintenance component (4) is installed on one side of one of the first rotating plates (21) away from the second rotating plate (22); A first through groove (211) is formed at the upper end of the first rotating plate (21), a second through groove (212) is formed at the lower end of the first rotating plate (21), a third through groove (213) is formed at one side of the first rotating plate (21), two fourth through grooves (221) are formed at positions of the second rotating plate (22) corresponding to the first through groove (211) and the second through groove (212), the valve component (3) is mounted at the fourth through grooves (221), and the two first through grooves (221) are provided at the positions of the first rotating plate (22) and the second through grooves (213). An upper pressing plate (24) and a lower pressing plate (25) are fixedly mounted on the sides of the rotating plates (21) close to each other. The upper pressing plate (24) and the lower pressing plate (25) are respectively located on the upper and lower sides of the first through groove (211). A plurality of evenly distributed protrusions (251) are integrally formed on the sides of the upper pressing plate (24) and the lower pressing plate (25) close to each other. The upper pressing plate (24) and the lower pressing plate (25) are used to seal the valve component (3).

2. A high-density adjustable hard-seal ball valve according to claim 1, characterized in that: The valve component (3) comprises two symmetrical side support rings (31), the two side support rings (31) are respectively fixedly mounted on the corresponding second rotating plates (22), an upper cover body (32) and a lower cover body (33) are slidably mounted between the two side support rings (31), the lower cover body (33) is located below the upper cover body (32), the upper cover body (32) and the lower cover body (33) are spliced ​​to form a chamber, a spherical valve core (34) is arranged inside the chamber, sleeves (341) are fixedly mounted at the upper and lower ends of the spherical valve core (34), hexagonal bolts (342) are mounted at the ends of the two sleeves (341) away from each other through threaded matching, a second L-shaped clamp (343) is fixedly mounted on the upper surface of the upper hexagonal bolt (342), and the upper cover body (32) and the lower cover body (33) are slidably sleeved on the outer surface of the corresponding sleeve (341).

3. A high-density adjustable hard-seal ball valve according to claim 2, characterized in that: Upper arc-shaped pieces (321) are fixedly mounted on both sides of the upper cover body (32), and lower arc-shaped pieces (331) are fixedly mounted on both sides of the lower cover body (33). The upper arc-shaped pieces (321) and the lower arc-shaped pieces (331) are respectively fitted on the upper and lower surfaces of the corresponding side support rings (31). Side support blocks (322) are fixedly mounted on both sides of the upper cover body (32) adjacent to the upper arc-shaped pieces (321). Support cylinders (323) are fixedly mounted on the side support blocks (322) and the lower cover body (33). A support spring (324) is fixedly connected between the two support cylinders (323). A side plate (325) is fixedly mounted on the lower surface of the side support block (322), and the side plate (325) is slidably clamped on the side wall of the lower cover body (33).

4. A high-density adjustable hard-seal ball valve according to claim 3, characterized in that: A pneumatic actuator (15) is fixedly mounted on the upper surface of the external shell (1); a first L-shaped clamp (151) is rotatably mounted on the internal upper surface of the external shell (1); the first L-shaped clamp (151) is fixedly mounted on the driving end of the pneumatic actuator (15); a stepper motor (14) is fixedly mounted on the external side of the external shell (1); the driving end of the stepper motor (14) passes through the external shell (1) and is fixedly mounted on the middle part of the second rotating plate (22); a fan (13) is fixedly mounted on the external side of the external shell (1); the output end of the fan (13) passes through the external shell (1) and is fixedly mounted at the position of the third through slot (213); an air outlet pipe (131) is fixedly mounted on the third through slot (213) on the first rotating plate (21) away from the fan (13); the air outlet pipe (131) extends to the outside of the external shell (1).

5. A high-density adjustable hard-seal ball valve according to claim 4, characterized in that: A liquid inlet pipe (11) is fixedly mounted on one side of the upper end of the outer shell (1), and a liquid outlet pipe (12) is fixedly mounted on the side of the upper end of the outer shell (1) away from the liquid outlet pipe (12). Both the liquid inlet pipe (11) and the liquid outlet pipe (12) extend into the interior of the outer shell (1) and are fixedly mounted on corresponding first through grooves (211). The maintenance component (4) is located below the liquid outlet pipe (12).

6. A high-density adjustable hard-seal ball valve according to claim 5, characterized in that: The maintenance component (4) comprises a maintenance pipe (41), wherein the maintenance pipe (41) is fixedly mounted on one side of the second through groove (212), the maintenance pipe (41) is communicated with the interior of the liquid outlet pipe (12) through a connecting pipe (42), a piston (421) is slidably mounted inside the connecting pipe (42), a worm wheel (45) and a worm (46) are rotatably mounted inside the maintenance pipe (41), the worm wheel (45) and the worm (46) are meshed with each other, a winding wheel (48) is rotatably mounted on the worm (46), and check members (47) are fixedly mounted at both ends of the worm (46), and the check member (47) only allows the worm (46) to rotate in one direction.

7. A high-density adjustable hard-seal ball valve according to claim 6, characterized in that: The check member (47) includes a ferrule (471), one of which is fixedly mounted on the side surface of the winding wheel (48), and the other ferrule (471) is fixedly mounted on the inner wall of the maintenance pipe (41). A center rotating plate (472) is rotatably mounted inside the ferrule (471), and the outer surface of the center rotating plate (472) has a plurality of evenly distributed elastic sheets. A plurality of latch teeth used in conjunction with the elastic sheets are integrally formed inside the ferrule (471), and the winding wheel (48) is connected to the piston (421) via a rope.

8. A high-density adjustable hard-seal ball valve according to claim 7, characterized in that: A feeding pipe (44) is fixedly installed at both upper and lower ends of the interior of the maintenance pipe (41), an auger (441) is rotatably installed inside the feeding pipe (44), one side of the worm gear (45) is connected to one end of the auger (441) via a chain, and two oil outlet pipes (311) corresponding to the feeding pipe (44) are fixedly installed inside the side support ring (31) close to the maintenance component (4), and the oil outlet pipe (311) extends from one end of the feeding pipe (44) to the surface of the spherical valve core (34).

9. A high-density adjustable hard-seal ball valve according to claim 8, characterized in that: An oil storage box (43) is fixedly mounted on the upper surface of the maintenance pipe (41), and a connecting shell (431) is fixedly mounted on the lower surface of the oil storage box (43), wherein the connecting shell (431) is communicated with both feeding pipes (44).

10. A high-density adjustable hard-seal ball valve according to claim 9, characterized in that: An opening is formed at one end of the oil outlet pipe (311) away from the feeding pipe (44).

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