Uniformly forced plug valve plug sealing surface grinding mechanism

Abstract

The application relates to the technical field of valve body grinding, and provides a faucet valve faucet sealing surface grinding mechanism with uniform stress, which comprises a valve body frame for fixing a valve body, a faucet frame for fixing a faucet, a first power piece movably arranged on the faucet frame and a grinding piece; one end of the grinding piece is detachably connected to a power output end of the first power piece, a plurality of chip removal channels are arranged on the two sides of the grinding piece, the directions of the chip removal channels are consistent with the direction of the inner side wall of the valve body; the faucet frame is used for driving the grinding piece to move to one side to abut against the inner side wall of the valve body, and the faucet frame is also used for driving the other side of the faucet to abut against the grinding piece; the first power piece is used for driving the grinding piece to rotate between the inner side wall of the valve body and the sealing surface of the faucet; and the chip removal channels are used for removing the chippings in the grinding process. The grinding mechanism provided by the application can timely remove the chippings generated in the grinding process.

Description

Technical Field

[0001] This application relates to the field of valve body grinding technology, and in particular to a grinding mechanism for the valve sealing surface of a plug valve with uniform force. Background Technology

[0002] A plug valve is a type of plug valve with a simple structure and good sealing performance. It is widely used in industries such as petroleum, chemical, pharmaceutical, and food. To ensure the sealing performance of the plug valve, it is necessary to grind the plug and the inner wall of the valve body to ensure that the plug valve can maintain good sealing performance.

[0003] The grinding mechanism for the plug valve sealing surface in the related technology fixes the plug valve body and controls the plug to press against the inner wall of the valve body, while controlling the plug to rotate within the valve body. The above solution cannot discharge the grinding debris in time, which will affect the sealing performance of the plug valve after grinding. Summary of the Invention

[0004] This application provides a grinding mechanism for the sealing surface of a plug valve with uniform force, which can improve the technical problem in related technologies that cannot discharge the debris generated during the grinding process in a timely manner.

[0005] This application provides a grinding mechanism for the sealing surface of a plug valve under uniform force, comprising:

[0006] Valve body bracket, used to fix the valve body;

[0007] A stopcock holder is movably mounted on the valve body frame, and the stopcock holder is used to fix the stopcock.

[0008] A first power component, movably mounted on the valve holder; and

[0009] The grinding component has one end detachably connected to the power output end of the first power component, and multiple chip removal channels are respectively opened on both sides of the grinding component, the direction of the chip removal channels being consistent with the direction of the inner wall of the valve body;

[0010] The stopcock holder is used to move the grinding element to one side to abut against the inner wall of the valve body, and the stopcock holder is also used to move the other side of the stopcock to abut against the grinding element; the first power component is used to drive the grinding element to rotate between the inner wall of the valve body and the sealing surface of the stopcock, and the chip removal channel is used to discharge the chips during the grinding process.

[0011] The technical solutions described in this application embodiment have at least the following technical effects:

[0012] The uniformly stressed plug valve plug sealing surface grinding mechanism provided in this application embodiment comprises a valve body frame for fixing the valve body, a plug frame for fixing the plug, a first power member movably mounted on the plug frame, and a grinding member detachably connected to the power output end of the first power member. The plug valve is opened and the valve body and plug are removed; the valve body is fixed to the valve body frame to keep it stationary during grinding; the grinding member is fixed to the power output end of the first power member, and the plug is also fixed to the power output end of the first power member. By moving the plug frame, one side of the grinding member abuts against the inner wall of the valve body, and then the first power member drives the plug to abut against the other side of the grinding member; the first power member drives the grinding member to rotate, so that the grinding member grinds the plug and the inner wall of the valve body. Compared to directly grinding the stopcock and valve body, the above method allows for the use of a harder grinding material to accelerate the grinding process. Even when the stopcock and valve body sealing surfaces affect the stopcock's rotation, the grinding material restores these surfaces to a state where they do not impede rotation. Multiple chip removal channels are provided on both sides of the grinding material to promptly remove debris generated during the grinding process, thus preventing debris from affecting the grinding results.

[0013] In some embodiments, the grinding element includes:

[0014] A grinding ring, one end of which is detachably connected to the power output end of the first power component, and the other end of which abuts against the inner wall of the valve body; and

[0015] Multiple grinding blocks are disposed on the inner and outer sides of the grinding ring body; the multiple grinding blocks located between the grinding ring body and the stopcock abut against the stopcock sealing surface, and the multiple grinding blocks located between the grinding ring body and the inner wall of the valve body abut against the inner wall of the valve body; multiple chip removal channels are formed between the multiple grinding blocks.

[0016] In some embodiments, the grinding ring body has a plurality of mounting holes; a plurality of grinding blocks located between the grinding ring body and the stopcock are movably disposed on the grinding ring body; the grinding element further includes:

[0017] A pressure sensing element is disposed on one side of the plurality of grinding blocks located between the grinding ring body and the stopcock, facing the stopcock;

[0018] An information processing unit is electrically connected to the pressure detection unit. The information processing unit is used to receive and process the pressure information detected by the pressure detection unit, and to generate and send control information based on the pressure information.

[0019] A control unit, electrically connected to the information processing unit, is used to receive the control information and, based on the control information, control the movement of the plurality of grinding blocks located between the grinding ring and the stopcock toward or away from the stopcock, thereby ensuring uniform force distribution across the stopcock; and

[0020] The second power component is disposed within the mounting hole, and the grinding block is disposed at the power output end of the second power component; the second power component is electrically connected to the control component, and the second power component is used to provide power to the control component.

[0021] In some embodiments, the grinding element further includes a first connector, one end of which is disposed at the power output end of the first power element, and the other end of which is detachably connected to the grinding ring body, so that the first power element can be connected to grinding elements of different sizes.

[0022] In some embodiments, the valve body frame includes:

[0023] A placement platform, wherein the placement platform has a fixed space that is connected to an external space;

[0024] Two movable fixing members, each partially movably disposed within the fixed space and extending further into the external space; the movable fixing members have bolt holes of different sizes; and

[0025] Multiple bolts of different sizes, wherein the size of the bolt corresponds one-to-one with the size of the bolt hole;

[0026] The two movable fixing members are used to move to both sides of the valve body so that the threaded holes on the movable fixing members are connected to the threaded holes on the valve body, thereby enabling bolts of corresponding sizes to fix the valve body between the two movable fixing members.

[0027] In some embodiments, the mounting platform has a confinement space, which is connected to the fixed space; the valve body frame further includes:

[0028] A limiting rod is disposed within the fixed space, the extension direction of the limiting rod is perpendicular to the movement direction of the movable fixing member, and the limiting rod is located in the middle of the fixed space;

[0029] The second connecting member is movably disposed on the limiting rod;

[0030] A first connecting rod, one end of which is hinged to one end of the second connecting member, and the other end of which is hinged to one of the movable fixing members;

[0031] The second link has one end hinged to the other end of the second connector, and the other end hinged to another movable fixing member; and the length of the first link is the same as the length of the second link.

[0032] In some embodiments, the valve holder includes:

[0033] Two fixed frames are provided on the mounting platform, and each fixed frame is provided with a movable groove perpendicular to the mounting platform. The positions of the two movable grooves are set at corresponding positions on the two fixed frames.

[0034] A third power component is disposed on the mounting platform, and the third power component has two power output ends, and the two power output ends move synchronously; one power output end is located in one of the moving slots, and the other power output end is located in the other moving slot; and

[0035] An adjusting rod, one end of which is connected to one of the power output components, and the other end of which is connected to another power output component.

[0036] In some embodiments, the mounting bracket has an installation space, and the third power component includes:

[0037] A motor is mounted on the mounting platform; the motor includes a rotating rod disposed within the mounting space;

[0038] Two gears are disposed on the rotating rod, and the rotation axis of the gears is on the same straight line as the rotation axis of the rotating rod, and the two gears are respectively located directly below the two moving slots;

[0039] Two racks, one end of each rack is connected to both ends of the adjusting rod, and the racks are movably disposed in the moving groove, and the racks mesh with the gear.

[0040] In some embodiments, the grinding mechanism further includes a storage cabinet disposed below the mounting platform to facilitate the placement of grinding components of different sizes.

[0041] In some embodiments, the grinding mechanism further includes a water spraying element disposed on the side of the first connector facing away from the valve body, so that the water spraying element sprays water toward the plurality of grinding blocks, thereby moving the debris generated during the grinding process to the bottom of the valve body. Attached Figure Description

[0042] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0043] Figure 1 A three-dimensional structural schematic diagram of the grinding mechanism for the uniformly stressed plug valve sealing surface provided in the embodiments of this application;

[0044] Figure 2 A three-dimensional structural schematic diagram of some of the third power components provided in the embodiments of this application;

[0045] Figure 3 A three-dimensional structural diagram of a bolt provided in an embodiment of this application;

[0046] Figure 4 A front view schematic diagram of the grinding mechanism for the uniformly stressed plug valve sealing surface of the embodiment of this application;

[0047] Figure 5 for Figure 4 Schematic diagram of the cross-sectional structure along line AA;

[0048] Figure 6 for Figure 4 Schematic diagram of the cross-sectional structure of the middle BB line;

[0049] Figure 7 for Figure 4 A magnified schematic diagram of the local structure at point C;

[0050] Figure 8 This is a schematic diagram illustrating the working principle of the grinding component provided in the embodiments of this application.

[0051] The following are the labeling elements in the figure:

[0052] 10. Valve body frame; 11. Mounting platform; 110. Fixed space; 111. Restricted space; 12. Movable fixing component; 120. Bolt hole; 13. Bolt; 14. Limiting rod; 15. Second connecting component; 16. First connecting rod; 17. Second connecting rod;

[0053] 20. Plug holder; 21. Fixed frame; 210. Moving slot; 22. Third power component; 221. Motor; 2211. Rotating rod; 222. Gear; 223. Rack; 23. Adjusting rod;

[0054] 30. First power component;

[0055] 40. Grinding component; 400. Chip removal channel; 41. Grinding ring; 410. Mounting hole; 42. Grinding block; 43. Pressure detection component; 44. Information processing component; 45. Control component; 46. Second power component; 47. First connecting component;

[0056] 50. Storage cabinet;

[0057] 60. Water spray components. Detailed Implementation

[0058] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0059] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application. The terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0060] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0061] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0062] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0063] In this application, "and / or" is merely a way of describing the relationship between related objects, indicating that three relationships can exist; for example, A and / or B can represent three cases: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0064] It should be noted that in this application, the words "in some embodiments," "exemplarily," and "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described in this application as "in some embodiments," "exemplarily," or "for example" should not be construed as being more preferred or advantageous than other embodiments or design solutions. Specifically, the use of words such as "in some embodiments," "exemplarily," and "for example" is intended to present related concepts in a specific manner, meaning that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of this application. The appearance of the above words in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0065] A plug valve is a type of plug valve with a simple structure and good sealing performance. It is widely used in industries such as petroleum, chemical, pharmaceutical, and food. To ensure the sealing performance of the plug valve, it is necessary to grind the plug and the inner wall of the valve body to ensure that the plug valve can maintain good sealing performance.

[0066] The grinding mechanism for the plug sealing surface of a plug valve with uniform force distribution in related technologies involves fixing the plug valve body and controlling the plug to press against the inner wall of the valve body while simultaneously controlling the plug to rotate within the valve body. However, the above solution cannot remove the grinding debris in a timely manner, which will affect the sealing performance of the plug valve after grinding.

[0067] Based on this, in order to improve the technical problem of not being able to remove the debris generated during the grinding process in a timely manner in related technologies, the embodiments of this application provide the following solution.

[0068] Please refer to the following: Figures 1 to 5 This application provides a grinding mechanism for the sealing surface of a plug valve with uniform force distribution. The grinding mechanism includes a valve body frame 10, a plug holder 20, a first power component 30, and a grinding component 40; wherein:

[0069] Valve body bracket 10 is used to fix the valve body.

[0070] The stopcock holder 20 is movably mounted on the valve body holder 10 and is used to fix the stopcock.

[0071] The first power component 30 is movably mounted on the valve holder 20.

[0072] One end of the grinding component 40 is detachably connected to the power output end of the first power component 30. Multiple chip removal channels 400 are respectively opened on both sides of the grinding component 40, and the direction of the chip removal channels 400 is consistent with the direction of the inner wall of the valve body.

[0073] The stopcock holder 20 is used to move the grinding part 40 to one side to abut against the inner wall of the valve body, and the stopcock holder 20 is also used to move the other side of the stopcock to abut against the grinding part 40; the first power member 30 is used to drive the grinding part 40 to rotate between the inner wall of the valve body and the sealing surface of the stopcock; and the chip discharge channel 400 is used to discharge the chips during the grinding process.

[0074] It can be understood that the valve body frame 10 is a component used to fix the valve body; for example, the valve body frame 10 can be two movable moving plates with bolt holes 120 and bolts 13, and the valve body is fixed between the two moving plates by the bolts 13; for another example, the valve body frame 10 can also be a semi-circular fixing frame, on which the valve body connection of the plug valve is placed.

[0075] The stopcock holder 20 is a component used to fix the stopcock; for example, the stopcock holder 20 can be a robotic arm.

[0076] The first power component 30 is a device for providing power to the grinding workpiece 40; for example, the first power component 30 may be an electric motor or a motor, etc.

[0077] The grinding element 40 is a component used to seal the valve plug and the valve body sealing surface; for example, the grinding element 40 may be a component composed of a grinding ring 41 and a plurality of grinding blocks 42; or, for example, the grinding element 40 may also be a grinding rod disposed between the valve plug and the valve body side wall.

[0078] As can be seen from the above, the plug valve sealing surface grinding mechanism provided in this application embodiment comprises a valve body frame 10 for fixing the valve body, a plug frame 20 for fixing the plug, a first power member 30 movably disposed on the plug frame 20, and a grinding member 40 detachably connected to the power output end of the first power member 30. The plug valve is opened and the valve body and plug are removed; the valve body is fixed to the valve body frame 10 so that the valve body remains stationary during grinding; the grinding member 40 is fixed to the power output end of the first power member 30, and the plug is fixed to the first power member 30; by moving the plug frame 20, one side of the grinding member 40 abuts against the inner wall of the valve body, and then the first power member 30 drives the plug to abut against the other side of the grinding member 40; the first power member 30 drives the grinding member 40 to rotate, so that the grinding member 40 grinds the plug and the inner wall of the valve body. Compared to the method of directly grinding the stopcock and valve body, the above method allows the grinding element 40 to be made of a harder material, thereby accelerating the grinding speed. Even when the stopcock and valve body sealing surfaces affect the stopcock's rotation, the grinding element 40 can restore the stopcock and valve body sealing surfaces to a state where they do not affect the stopcock's rotation. Multiple chip removal channels 400 are provided on both sides of the grinding element 40 to promptly remove debris during the grinding process, thus preventing debris from affecting the grinding results.

[0079] In some embodiments, please refer to the following: Figures 1 to 7 The grinding component 40 includes a grinding ring 41 and a plurality of grinding blocks 42; wherein:

[0080] One end of the grinding ring 41 is detachably connected to the power output end of the first power member 30, and the other end of the grinding ring 41 abuts against the inner wall of the valve body.

[0081] Multiple grinding blocks 42 are disposed on the inner and outer sides of the grinding ring body 41; the multiple grinding blocks 42 located between the grinding ring body 41 and the stopcock abut against the stopcock sealing surface, and the multiple grinding blocks 42 located between the grinding ring body 41 and the inner wall of the valve body abut against the inner wall of the valve body; multiple chip removal channels 400 are formed between the multiple grinding blocks 42.

[0082] It is understood that the grinding ring 41 is a component used to provide an installation position for the grinding block 42; for example, the grinding ring 41 may be a metal ring with the same shape as the inner wall of the valve body. The grinding block 42 is a component used to grind the valve stem and the inner wall of the valve body; for example, the grinding block 42 may be a metal rod with a triangular cross-section or a metal rod with a fan-shaped cross-section.

[0083] This configuration, where the grinding element 40 is a combination of a grinding ring 41 and multiple grinding blocks 42, places the stopcock and the inner wall of the valve body on both sides of the grinding element 40. By applying external force to the stopcock, a force is exerted on the stopcock and the inner wall of the valve body, thereby accelerating the grinding rate. Compared to a design where the grinding element 40 is a grinding rod, this design allows for control over the force applied to the stopcock and the inner wall of the valve body, ensuring that they are subjected to a uniform force and thus improving the grinding effect.

[0084] Optionally, in some embodiments, please refer to Figures 6 to 8 The grinding ring 41 has multiple mounting holes 410; multiple grinding blocks 42 located between the grinding ring 41 and the stopcock are movably disposed on the grinding ring 41; the grinding component 40 also includes:

[0085] Pressure detection element 43 is disposed on one side of a plurality of grinding blocks 42 located between grinding ring body 41 and stopcock, facing the stopcock.

[0086] The information processing unit 44 is electrically connected to the pressure detection unit 43. The information processing unit 44 is used to receive and process the pressure information detected by the pressure detection unit 43, and the information processing unit 44 generates and sends control information based on the pressure information.

[0087] The control unit 45 is electrically connected to the information processing unit 44. The control unit 45 is used to receive control information and control multiple grinding blocks 42 located between the grinding ring body 41 and the stopcock to move toward or away from the stopcock according to the control information, so that the force is evenly distributed throughout the stopcock.

[0088] The second power component 46 is disposed in the mounting hole 410, and the grinding block 42 is disposed at the power output end of the second power component 46; the second power component 46 is electrically connected to the control component 45, and the second power component 46 is used to provide power to the control component 45.

[0089] It is understood that the pressure detection element 43 is a component used to detect the pressure exerted on the grinding block 42; for example, the pressure detection element 43 can be a strain gauge pressure sensor or a capacitive pressure sensor, etc. The information processing element 44 is a component used to process information and generate control information; for example, the information processing element 44 can be a programmable logic controller (PLC) or a microcontroller. The control element 45 is a component used to control the second power element 46 according to the control information; for example, the control element 45 can be a programmable logic controller (PLC) or a remote terminal unit (RTU), etc. The second power element 46 is a device used to provide power to the grinding block 42; for example, the second power element 46 can be a linear motor or a cylinder, etc.

[0090] This configuration, by making the grinding block 42 a movable component, allows it to retract or extend in a timely manner, thus enabling it to adapt to the water passage of the stopcock valve. This prevents the grinding block 42 from partially extending into the water passage and ultimately damaging it. The system incorporates a pressure detection element 43, an information processing element 44, a control element 45, and a second power element 46. The pressure detection element 43 detects the pressure on the grinding block 42 and sends this information to the information processing element 44. The information processing element 44 generates control information based on the pressure information and sends it to the control element 45. The control element 45 then controls the second power element 46, which in turn moves the grinding block 42 towards or away from the stopcock. This structure accurately detects whether the grinding block 42 is within the water passage of the stopcock valve and controls its movement accordingly. The pressure information is categorized into two types: pressure not zero and pressure zero. The control information is divided into two categories: forward current and reverse current. The forward current controls the grinding block 42 to move toward the rotary valve through the second power component 46, while the reverse current controls the grinding block 42 to move away from the rotary valve through the second power component 46.

[0091] Optionally, please refer to Figures 1 to 5 The grinding component 40 also includes a first connector 47, one end of which is disposed at the power output end of the first power component 30, and the other end of which is detachably connected to the grinding ring 41, so that the first power component 30 can be connected to grinding components 40 of different sizes.

[0092] It can be understood that the first connector 47 is a component used to transmit the power of the first power member 30 to the grinding ring 41; for example, the first connector 47 can be a ring or a robotic arm, etc.

[0093] With this configuration, by setting the first connector 47, the first power component 30 is indirectly connected to the grinding ring 41, thereby reducing the size of the grinding ring 41, which facilitates the storage of the grinding ring 41. Furthermore, since the grinding block 42 is a consumable, it can reduce the volume of the grinding ring 41 and reduce replacement costs.

[0094] For example, please refer to Figures 1 to 4 The valve body frame 10 includes a mounting platform 11, two movable fixing parts 12, and multiple bolts 13 of different sizes; wherein:

[0095] The placement platform 11 has a fixed space 110, which is connected to the external space.

[0096] Two movable fixing parts 12 are movably disposed within the fixed space 110, and the other part extends into the external space; the movable fixing parts 12 are provided with bolt holes 120 of different sizes.

[0097] The dimensions of bolt 13 correspond one-to-one with the dimensions of bolt hole 120.

[0098] Among them, the two movable fixing parts 12 are used to move to both sides of the valve body so that the threaded holes on the movable fixing parts 12 are connected to the threaded holes on the valve body, thereby enabling the bolts 13 of corresponding size to fix the valve body between the two movable fixing parts 12.

[0099] It is understood that the mounting platform 11 is a component used to place the valve body; for example, the mounting platform 11 can be a metal plate or a metal platform, etc. The movable fixing member 12 is a component used to help fix the valve body; for example, the movable fixing member 12 can be a metal plate or a metal block, etc.

[0100] With this configuration, bolt holes 120 are provided on the movable fixing member 12, and the size of the bolt holes 120 corresponds one-to-one with the size of the bolts 13. The movable fixing member 12 can be movably set within the fixed space 110. This configuration enables the valve body frame 10 to fix valve bodies of different sizes, and the valve body is fixed between the two movable fixing members 12 by the bolts 13, which can prevent the valve body from moving during the grinding process, thereby allowing for better grinding.

[0101] In some embodiments, please refer to Figures 1 to 8 The mounting platform 11 has a limiting space 111, which is connected to the fixed space 110; the plug holder 20 also includes a limiting rod 14, a second connecting piece 15, a first connecting rod 16, and a second connecting rod 17; wherein:

[0102] The limiting rod 14 is disposed in the fixed space 110. The extension direction of the limiting rod 14 is perpendicular to the movement direction of the movable fixing member 12, and the limiting rod 14 is located in the middle of the fixed space 110.

[0103] The second connector 15 is movably mounted on the limiting rod 14.

[0104] One end of the first link 16 is hinged to one end of the second connector 15, and the other end of the first link 16 is hinged to one of the movable fixing parts 12.

[0105] One end of the second link 17 is hinged to the other end of the second connector 15, and the other end of the second link 17 is hinged to another movable fixing member 12; and the length of the first link 16 is the same as the length of the second link 17.

[0106] It is understood that the limiting rod 14 is a component used to restrict the movement direction of the second connecting member 15. For example, the limiting rod 14 can be a metal rod or a metal strip. The second connecting member 15 is a component used to connect the first link 16 and the second link 17; for example, the second connecting member 15 can be a metal block or a metal shell. The first link 16 is a component used to connect the second connecting member 15 and one of the movable fixing members 12. The second link 17 is a component used to connect the second connecting member 15 and the other movable fixing member 12.

[0107] With this configuration, by moving one of the movable fixing parts 12, the second connecting part 15 is moved on the limiting rod 14 via the first connecting rod 16, and the second connecting part 15 is moved by the other movable fixing part 12 via the second connecting rod 17. The above scheme can make the distance between the two movable fixing parts 12 and the limiting rod 14 equal, thereby ensuring that the center of valve bodies of different sizes is always in the same position.

[0108] Optionally, in some embodiments, please refer to Figures 1 to 6 The cock holder 20 includes two fixed brackets 21, a third power component 22, and an adjusting rod 23; wherein:

[0109] Two fixed brackets 21 are set on the mounting platform 11, and the fixed brackets 21 are provided with moving grooves 210 perpendicular to the mounting platform 11. The positions of the two moving grooves 210 are set at corresponding positions on the two fixed brackets 21.

[0110] The third power component 22 is disposed on the mounting platform 11, and the third power component 22 has two power output ends, and the two power output ends move synchronously; one power output end is located in one of the moving slots 210, and the other power output end is located in the other moving slot 210.

[0111] One end of the adjusting rod 23 is connected to one of the power output components, and the other end of the adjusting rod 23 is connected to the other power output component.

[0112] It is understood that the fixing frame 21 is a component used to hold the adjusting rod 23; for example, the fixing frame 21 can be a metal cylinder or a metal cuboid. The third power component 22 is a device used to provide power to the adjusting rod 23; for example, the third power component 22 can be a linear motor or a cylinder. The adjusting rod 23 is a component used to move the grinding part 40; for example, the adjusting rod 23 can be a metal round rod or a metal square rod.

[0113] With this configuration, the third power component 22 drives the adjusting rod 23 to move on the two fixed frames 21, thereby controlling the height of the adjusting rod 23; compared with directly adjusting the grinding component 40, the above scheme can enhance the stability during the movement process.

[0114] Optionally, please refer to Figures 1 to 7 The mounting bracket 21 has installation space, and the third power component 22 includes a motor 221, two gears 222, and two racks 223; wherein:

[0115] The motor 221 is mounted on the mounting platform 11; the motor 221 includes a rotating rod 2211, which is located within the installation space.

[0116] Two gears 222 are disposed on the rotating rod 2211, and the rotation axis of the gears 222 and the rotation axis of the rotating rod 2211 are on the same straight line, and the two gears 222 are respectively located directly below the two moving slots 210.

[0117] One end of each of the two racks 223 is connected to both ends of the adjusting rod 23, and the racks 223 are movably disposed in the moving groove 210, and the racks 223 mesh with the gears 222.

[0118] It can be understood that motor 221 is a component used to provide power to the two gears 222; for example, motor 221 can be a rotary motor. The gear and rack assembly is a component used to transmit the power of motor 221 to adjusting rod 23.

[0119] With this configuration, the motor 221 controls the height of both ends of the adjusting rod 23 through the gear and rack assembly; compared with using two motors 221, the scheme of using one motor 221 and two sets of gear and rack assemblies can ensure that the height of both ends of the adjusting rod 23 remains consistent.

[0120] In some embodiments, please refer to Figures 1 to 4 The grinding mechanism also includes a storage cabinet 50, which is located below the mounting platform 11 to facilitate the placement of grinding components of different specifications.

[0121] With this setup, since the above solution can be applied to valve bodies of various sizes, there are many accessories, which leads to the problem of accessory storage. By setting up a storage cabinet 50 under the mounting platform 11, not only can the accessories be stored, but also the rack 223 can be provided with space to move.

[0122] In some embodiments, please refer to Figure 6 The grinding mechanism also includes a water spraying component 60, which is located on the side of the first connector 47 facing away from the valve body, so that the water spraying component 60 sprays water toward the multiple grinding blocks 42, thereby moving the debris generated during the grinding process to the bottom of the valve body.

[0123] It is understood that the water spray component 60 is a device for spraying water onto the grinding area; for example, the water spray component 60 may be a device consisting of a small water pump, a small water storage tank, a small water pipe and a small nozzle.

[0124] With this setup, water spraying is applied to the grinding area via a water spraying component 60 to cool the grinding area and remove debris generated during the grinding process.

[0125] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A grinding mechanism for the sealing surface of a plug valve with uniform force distribution, characterized in that, include: Valve body bracket, used to fix the valve body; A stopcock holder is movably mounted on the valve body frame, and the stopcock holder is used to fix the stopcock. A first power component is movably mounted on the valve holder; as well as The grinding component has one end detachably connected to the power output end of the first power component, and multiple chip removal channels are respectively opened on both sides of the grinding component, the direction of the chip removal channels being consistent with the direction of the inner wall of the valve body; The stopcock holder is used to move the grinding element to one side to abut against the inner wall of the valve body, and the stopcock holder is also used to move the other side of the stopcock to abut against the grinding element; the first power component is used to drive the grinding element to rotate between the inner wall of the valve body and the sealing surface of the stopcock; the chip removal channel is used to discharge the chips during the grinding process. The grinding element includes: A grinding ring, one end of which is detachably connected to the power output end of the first power component, and the other end of which abuts against the inner wall of the valve body; and Multiple grinding blocks are disposed on the inner and outer sides of the grinding ring body; the multiple grinding blocks located between the grinding ring body and the stopcock abut against the sealing surface of the stopcock, and the multiple grinding blocks located between the grinding ring body and the inner wall of the valve body abut against the inner wall of the valve body; multiple chip removal channels are formed between the multiple grinding blocks; The grinding ring body has multiple mounting holes; multiple grinding blocks located between the grinding ring body and the stopcock are movably disposed on the grinding ring body; the grinding component further includes: A pressure sensing element is disposed on one side of the plurality of grinding blocks located between the grinding ring body and the stopcock, facing the stopcock; An information processing unit is electrically connected to the pressure detection unit. The information processing unit is used to receive and process the pressure information detected by the pressure detection unit, and to generate and send control information based on the pressure information. A control unit, electrically connected to the information processing unit, is used to receive the control information and, based on the control information, control the movement of the plurality of grinding blocks located between the grinding ring and the stopcock toward or away from the stopcock, thereby ensuring uniform force distribution across the stopcock; and The second power component is disposed within the mounting hole, and the grinding block is disposed at the power output end of the second power component; the second power component is electrically connected to the control component, and the second power component is used to provide power to the control component.

2. The grinding mechanism as described in claim 1, characterized in that: The grinding component further includes a first connector, one end of which is disposed at the power output end of the first power component, and the other end of which is detachably connected to the grinding ring body, so that the first power component can be connected to grinding components of different sizes.

3. The grinding mechanism as described in claim 1, characterized in that, The valve body frame includes: A placement platform, wherein the placement platform has a fixed space that is connected to an external space; Two movable fixing members, each partially movably disposed within the fixed space and extending further into the external space; the movable fixing members have bolt holes of different sizes; and Multiple bolts of different sizes, wherein the size of the bolt corresponds one-to-one with the size of the bolt hole; The two movable fixing members are used to move to both sides of the valve body so that the threaded holes on the movable fixing members are connected to the threaded holes on the valve body, thereby enabling bolts of corresponding sizes to fix the valve body between the two movable fixing members.

4. The grinding mechanism as described in claim 3, characterized in that, The mounting platform has a confined space, which is connected to the fixed space; the valve body frame also includes: A limiting rod is disposed within the fixed space, the extension direction of the limiting rod is perpendicular to the movement direction of the movable fixing member, and the limiting rod is located in the middle of the fixed space; The second connecting member is movably disposed on the limiting rod; A first connecting rod, one end of which is hinged to one end of the second connecting member, and the other end of which is hinged to one of the movable fixing members; The second link has one end hinged to the other end of the second connector, and the other end hinged to another movable fixing member; and the length of the first link is the same as the length of the second link.

5. The grinding mechanism as described in claim 3, characterized in that, The valve holder includes: Two fixed frames are provided on the mounting platform, and each fixed frame is provided with a movable groove perpendicular to the mounting platform. The positions of the two movable grooves are set at corresponding positions on the two fixed frames. A third power component is disposed on the mounting platform, and the third power component has two power output ends, and the two power output ends move synchronously; one power output end is located in one of the moving slots, and the other power output end is located in the other moving slot; and An adjusting rod, one end of which is connected to one of the power output components, and the other end of which is connected to another power output component.

6. The grinding mechanism as described in claim 5, characterized in that, The mounting bracket has an installation space, and the third power component includes: A motor is mounted on the mounting platform; the motor includes a rotating rod disposed within the mounting space; Two gears are disposed on the rotating rod, and the rotation axis of the gears is on the same straight line as the rotation axis of the rotating rod, and the two gears are respectively located directly below the two moving slots; Two racks, one end of each rack is connected to both ends of the adjusting rod, and the racks are movably disposed in the moving groove, and the racks mesh with the gear.

7. The grinding mechanism as described in claim 3, characterized in that: The grinding mechanism also includes a storage cabinet located below the mounting platform to facilitate the placement of grinding components of different specifications.

8. The grinding mechanism as described in claim 2, characterized in that: The grinding mechanism also includes a water spraying component, which is disposed on the side of the first connector facing away from the valve body, so that the water spraying component sprays water toward the multiple grinding blocks, thereby moving the debris generated during the grinding process to the bottom of the valve body.

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