Ferrule ball valve

Abstract

The invention provides a ferrule ball valve, and belongs to the technical field of valves, the ferrule ball valve comprises a valve body, a valve rod is rotatably clamped on the valve body, two valve seats are arranged in the valve body, a ball body is rotatably arranged between the two valve seats, and the ferrule ball valve further comprises a handle, a handle support, a lock nut, a sealing filter assembly and a cleaning and discharging assembly; due to the unique design of the handle bracket, the turning radius of the valve is reduced, the operation is more labor-saving, and meanwhile, a good heat insulation effect is provided; the contact pressure between the taper sleeves can be automatically adjusted through the compression force of the spring, and the continuous sealing effect is kept; when fluid passes through the valve, the fan blades are driven to rotate, the impact force of the fluid is buffered, the scraper is driven to rotate synchronously, impurities on the filter plate are effectively dredged and cleaned, and accumulation and blockage are prevented; the position of the clamping block is changed by rotating the deflector rod, so that the limiting of the filter plate can be flexibly relieved, the automatic impurity removal operation is realized, and the requirements of different working conditions and fluid characteristics are met.

Description

Technical Field

[0001] The invention relates to the technical field of valves, and in particular to a ferrule ball valve. Background Art

[0002] Cardan ball valve, also called cardan type ball valve, double cardan ball valve, single cardan ball valve, cardan reducing ball valve, snap ring type ball valve, ring type ball valve, QG.Y1 cardan ball valve and cardan reducer ball valve, products are widely used in water treatment equipment, chemical equipment, petrochemical equipment, petroleum equipment, papermaking equipment, mining equipment, power equipment, liquefied gas equipment, food equipment, pharmaceutical equipment, mechanical equipment valves, electronic industrial valves, urban construction valves, industrial pipeline valves, general parts, industrial equipment, fire protection HVAC, filtration equipment and environmental protection equipment and other fields.

[0003] Existing ferrule ball valves often expose the following shortcomings during actual use, especially when handling fluids containing tiny particles or impurities: the wear of mechanical parts caused by particles and fluid impact and the blockage of fluid channels will lead to a decrease in the control accuracy of the valve. Even if the valve can barely work, its flow regulation and switching action may become inaccurate and unstable, and the valve needs to be maintained and parts replaced more frequently. In addition, even if some ferrule ball valves can filter the fluid flowing through the valve, they cannot discharge impurities in the pipeline in time. Once impurities accumulate in front of the filter component, the valve performance may be reduced or even unable to work normally. At this time, it is often necessary to manually disassemble the valve for cleaning, which not only increases maintenance costs, but may also affect the normal operation of the production line.

[0004] How to invent a ferrule ball valve to solve these problems has become an urgent problem to be solved by technical personnel in this field. Summary of the invention

[0005] In order to make up for the above shortcomings, the present invention provides a sleeve ball valve, which aims to solve the problems mentioned in the above background.

[0006] The present invention is achieved in that:

[0007] The present invention provides a sleeve ball valve, comprising a valve body, a valve stem rotatably connected to the valve body, two valve seats arranged inside the valve body, a sphere rotatably arranged between the two valve seats, the lower end of the valve stem fixedly connected to the upper end of the sphere, a valve cover threadedly connected to the left end of the valve body, the right end of the valve cover tightly abuts against the side wall of one of the valve seats, a screw sleeve threadedly connected to the right end of the valve body and a sleeve fixedly connected to the outer side of the sleeve, a short cone sleeve and a long cone sleeve mounted on the inner side of the sleeve, and further comprising:

[0008] A handle, a handle bracket and a locking nut, wherein the handle bracket is slidably connected to the valve stem, the handle is sleeved on the outside of the handle bracket, and the locking nut is located on the upper side of the handle bracket and is threadedly connected to the valve stem;

[0009] Sealing filter assembly: The sealing filter assembly is arranged at the liquid inlet end of the valve body. The sealing filter assembly can filter and buffer the liquid medium flowing through the valve body, and can also enhance the sealing effect of the short cone sleeve and the long cone sleeve;

[0010] Cleaning and discharging component: The cleaning and discharging component is arranged on the sealing filter component and the ferrule, and the cleaning and discharging component can automatically discharge impurities filtered by the sealing filter component.

[0011] Preferably, the blanks of the valve body and valve cover are rolled hexagonal bars, the upper end of the handle bracket abuts against the inner wall of the handle, the lower end of the handle is flush with the upper surface of the valve body, and the locking nut of the valve stem and the valve body adopts a combination of a metal insert anti-loosening nut and an elastic washer to prevent loosening.

[0012] Preferably, the handle bracket is made of metal material, the handle is made of plastic material, and the connection portion between the valve body and the valve cover adopts a double sealing structure of a polytetrafluoro ring and an O-ring.

[0013] Preferably, the sealing filter assembly includes a sealing groove arranged on a filter plate and a short cone sleeve, the sealing groove is distributed in a ring shape along the central axis of the short cone sleeve, and the side wall of the filter plate close to the valve body is fixedly connected with a sealing cylinder and a spring, the spring is located on the inner side of the sealing cylinder, the sealing cylinder, spring and sealing groove are arranged correspondingly, and the filter plate is located between the short cone sleeve and the ferrule.

[0014] Preferably, in the initial state, the sealing cylinder is clamped in the sealing groove, the right side wall of the filter plate abuts against the inner wall of the right end of the sleeve, and the sealing cylinder is connected to the spring in a sliding sealing manner.

[0015] Preferably, the interior of the ferrule is rotatably connected with a lever and a block, the lever is fixedly connected to the block, the block is arranged in a fan shape, one end of the lever extends to the outside of the ferrule, and the block can limit the left end of the filter plate when it is vertically downward.

[0016] Preferably, the cleaning and discharging assembly includes fan blades, scrapers, limit plates and limit grooves, the middle part of the fan blade connecting shaft is fixedly connected with a clamping ring, the left end of the fan blade connecting shaft is fixedly connected with a scraper, the middle part of the filter plate is provided with a clamping groove matching the clamping ring, the fan blades are rotatably engaged with the filter plate through the cooperation of the clamping ring and the clamping groove, soft bristles are fixedly provided on the side wall of the scraper facing the filter plate, the limit groove is located at the front end of the ferrule, a limit plate matching the limit groove is fixedly connected to the bottom of the right side wall of the filter plate, an inclined portion is provided on one side of the limit plate close to the filter plate, the end of the limit groove passes through the front side wall and the inner wall of the ferrule, and a discharge groove is provided on the lower side of the right end of the limit groove.

[0017] Preferably, the limit plate is arranged in an arc-shaped square frame, and the end of the soft bristles contacts the side wall of the filter plate. When the fluid flow rate is large, the filter plate moves to the left under the action of the fluid. At this time, the limit groove is connected to the inner cavity of the ferrule, and the front end of the limit plate forms a contact seal with the front end of the limit groove, and the fluid impurities will be discharged downward through the discharge groove.

[0018] The beneficial effects of the present invention are:

[0019] Through the cooperation of the threaded sleeve and the ferrule, the valve and the pipeline system can be quickly and conveniently connected, which improves the installation efficiency; the unique design of the handle bracket reduces the turning radius of the valve, making the operation more labor-saving, while providing good thermal insulation effect to ensure the safety of the operator; the spring maintains close contact between the short cone sleeve and the long cone sleeve in the initial state to enhance the sealing; at the same time, it buffers the filter plate to reduce the wear of the filter plate and the cone sleeve caused by the impact of water flow; by turning the lever to change the position of the card block, the movement and limit state of the filter plate can be flexibly controlled, allowing the system to operate according to actual needs and reducing unnecessary wear and energy consumption; as the use time increases, the compression force of the spring can automatically adjust the contact pressure between the cone sleeves to maintain a continuous sealing effect and reduce the risk of leakage caused by wear.

[0020] When the fluid passes through the valve, it drives the fan blades to rotate, thus buffering the impact force of the fluid, and drives the scraper to rotate synchronously, effectively unblocking and cleaning the impurities on the filter plate to prevent accumulation and blockage; by rotating the lever to change the position of the block, the limit on the filter plate can be flexibly released to achieve impurity removal operation. When the fluid flow rate increases, the filter plate moves to build a temporary channel, and impurities are automatically discharged; when the fluid flow rate decreases, the spring resets and locks the filter plate to ensure system stability and reliability; by adjusting the fluid flow rate and the position of the block, the impurity removal process can be flexibly controlled to meet the needs of different working conditions and fluid characteristics. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 This is a schematic diagram of the overall structure of a ferrule ball valve provided by the present invention;

[0023] Figure 2 This is a front view structural diagram of a ferrule ball valve provided by the present invention;

[0024] Figure 3 It is a schematic diagram of the structure of a sleeve ball valve handle bracket provided by the present invention;

[0025] Figure 4 The present invention provides a sleeve ball valve Figure 3 The enlarged structural diagram at A in the middle;

[0026] Figure 5 It is a schematic diagram of the front cross-sectional structure of a ferrule ball valve provided by the present invention;

[0027] Figure 6 The present invention provides a sleeve ball valve Figure 5 The enlarged structural diagram at B in the middle;

[0028] Figure 7 It is a schematic diagram of the cross-sectional structure of a ferrule ball valve body and a screw sleeve provided by the present invention;

[0029] Figure 8 It is a schematic diagram of a sleeve ball valve screw sleeve and the internal structure of the sleeve provided by the present invention;

[0030] Fig. 9 It is a schematic diagram of a front cross-sectional structure of a sleeve ball valve screw sleeve and a sleeve provided by the present invention;

[0031] Fig.10 It is a schematic diagram of a partial explosion structure of a ferrule ball valve provided by the present invention;

[0032] Fig.11 It is a cross-sectional schematic diagram of a local explosion structure of a ferrule ball valve provided by the present invention;

[0033] Fig.12 It is a schematic diagram of a connection scheme of a ferrule ball valve provided by the present invention.

[0034] In the figure: 1. valve body; 2. valve cover; 3. screw sleeve; 4. handle; 5. filter plate; 6. fan blade; 7. sealing cylinder; 8. limit groove; 9. lever; 11. valve stem; 12. ball; 13. valve seat; 14. anti-loosening nut; 15. long taper sleeve; 16. short taper sleeve; 31. clamping sleeve; 41. handle bracket; 51. limit plate; 52. inclined part; 53. clamping groove; 61. clamping ring; 62. scraper; 71. spring; 72. sealing slide groove; 81. discharge groove; 91. clamping block. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, 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. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Embodiment 1, refer to Figure 1-Figure 12 A sleeve ball valve comprises a valve body 1, a valve stem 11 is rotatably connected to the valve body 1, two valve seats 13 are arranged inside the valve body 1, a ball 12 is rotatably arranged between the two valve seats 13, the lower end of the valve stem 11 is fixedly connected to the upper end of the ball 12, a valve cover 2 is threadedly connected to the left end of the valve body 1, the right end of the valve cover 2 is tightly against the side wall of one of the valve seats 13, a screw sleeve 3 is threadedly connected to the right end of the valve body 1 and the left end of the valve cover 2, a sleeve 31 is fixedly connected to the outside of the screw sleeve 3, a short cone sleeve 16 and a long cone sleeve 15 are installed inside the screw sleeve 3, and the sealing between the screw sleeve 3 and the valve body 1 or the valve cover 2 is increased by the cooperation of the short cone sleeve 16 and the long cone sleeve 15, and also comprises:

[0037] The handle 4, the handle bracket 41 and the anti-loosening nut 14, the handle bracket 41 is slidably connected to the valve stem 11, the handle 4 is sleeved on the outside of the handle bracket 41, and the anti-loosening nut 14 is located on the upper side of the handle bracket 41 and is threadedly connected to the valve stem 11;

[0038] Sealing filter assembly: The sealing filter assembly is arranged at the liquid inlet end of the valve body 1. The sealing filter assembly can filter and buffer the liquid medium flowing through the valve body 1, and can also enhance the sealing effect of the short cone sleeve 16 and the long cone sleeve 15;

[0039] Cleaning and discharging component: The cleaning and discharging component is arranged on the sealing and filtering component and the ferrule 31, and the cleaning and discharging component can automatically discharge the impurities filtered by the sealing and filtering component.

[0040] Furthermore, the blanks of the valve body 1 and the valve cover 2 are rolled hexagonal bars, and the material has better hardness, strength and corrosion resistance. The upper end of the handle bracket 41 is against the inner wall of the handle 4, and the lower end of the handle 4 is flush with the upper surface of the valve body 1. The locking nut of the valve stem 11 and the valve body 1 adopts a combination of a metal insert anti-loosening nut 14 and an elastic washer to achieve anti-loosening.

[0041] The handle bracket 41 is made of metal, and the handle 4 is made of plastic. The metal handle bracket 41 is matched with the plastic handle 4, and the turning radius is small, and the operation is labor-saving. The effective heat insulation of the high-temperature resistant plastic prevents burns during operation. The connection between the valve body 1 and the valve cover 2 adopts a double sealing structure of a polytetrafluoro ring and an O-ring, and the sealing is more reliable.

[0042] It should be noted that the connection scheme at both ends of the valve body 1 can be designed according to actual needs (refer to Fig.12 ), in this case, the two-end ferrule 31 is mainly introduced.

[0043] In this embodiment, the right end of the valve body 1 and the left end of the valve cover 2 are both threadedly connected with a screw sleeve 3, and the outer side of the screw sleeve 3 is fixedly connected with a ferrule 31. This ferrule 31 connection scheme allows the valve to be easily connected to the pipeline system while ensuring good sealing. The cooperation of the short cone sleeve 16 and the long cone sleeve 15 can increase the sealing between the screw sleeve 3 and the valve body 1 or the valve cover 2. The connection part of the valve body 1 and the valve cover 2 adopts a double sealing structure of a polytetrafluoro ring and an O-ring. This double sealing design further improves the sealing performance of the valve and reduces the risk of leakage. The blanks of the valve body 1 and the valve cover 2 are rolled hexagonal bars with excellent hardness, strength and corrosion resistance. The handle bracket 41 is made of metal and the handle 4 is made of plastic. This design not only ensures the strength of the structure, but also provides a good heat insulation effect to prevent burns during operation.

[0044] When the valve needs to be opened, it is only necessary to turn the handle 4. The handle 4 can drive the handle bracket 41 to rotate, thereby controlling the rotation of the valve stem 11. When the valve stem 11 rotates, it will drive the ball 12 to rotate between the valve seat 13, thereby controlling the flow of the fluid. Through the unique design of the handle bracket 41, one side of the handle bracket 41 passes through the side wall of the handle 4 to form a match with the valve body 1. This setting greatly reduces the turning radius of the valve. The valve stem 11 and the valve body 1 are locked by a combination of a metal insert anti-loosening nut 14 and an elastic washer. This design can effectively prevent the nut from loosening due to vibration and other reasons during use.

[0045] Through the cooperation between the threaded sleeve 3 and the ferrule 31, a quick and convenient connection between the valve and the pipeline system is achieved. At the same time, the close cooperation between the short tapered sleeve 16 and the long tapered sleeve 15 significantly enhances the sealing between the threaded sleeve 3 and the valve body 1 or the valve cover 2, reducing the risk of leakage. The connection between the valve body 1 and the valve cover 2 adopts a double sealing structure of a polytetrafluoro ring and an O-ring. This design further improves the sealing performance of the valve and ensures stable and reliable operation under different working conditions. The unique design of the handle bracket 41 allows one side of the handle to pass through the side wall of the handle 4 to cooperate with the valve body 1, reducing the turning radius of the valve and making the operation more labor-saving. At the same time, it provides a good thermal insulation effect and ensures the safety of the operator.

[0046] Example 2, refer to Figure 3-Figure 9 The sealing filter assembly includes a sealing groove 72 arranged on the filter plate 5 and the short cone sleeve 16. The sealing groove 72 is distributed in an annular shape along the central axis of the short cone sleeve 16. The side wall of the filter plate 5 close to the valve body 1 is fixedly connected with a sealing cylinder 7 and a spring 71. The spring 71 is located on the inner side of the sealing cylinder 7. The sealing cylinder 7, the spring 71 and the sealing groove 72 are arranged correspondingly. The filter plate 5 is located between the short cone sleeve 16 and the ferrule 31. Through the arrangement of the spring 71, on the one hand, the short cone sleeve 16 and the long cone sleeve 15 can be pressed against both sides, and on the other hand, the filter plate 5 can be buffered.

[0047] It should be noted that in the initial state, the sealing cylinder 7 is clamped in the sealing groove 72, the right side wall of the filter plate 5 is abutted against the inner wall of the right end of the sleeve 31, and the sealing cylinder 7 and the spring 71 are slidingly sealed. This setting ensures that the spring 71 is always between the sealing cylinder 7 and the sealing groove 72, thereby extending the service life of the spring 71.

[0048] Furthermore, the internal rotation of the sleeve 31 is connected with a lever 9 and a block 91, the lever 9 is fixedly connected to the block 91, the block 91 is fan-shaped, and one end of the lever 9 extends to the outside of the sleeve 31. The position of the block 91 can be adjusted by rotating the lever 9. When the block 91 is vertically downward, the left end of the filter plate 5 can be limited. In this state, the block 91 and the sleeve 31 can limit the filter plate 5 from both sides. At this time, the filter plate 5 will not move. Under the action of the spring 71, the short cone sleeve 16 and the long cone sleeve 15 can be pressed against each other, which compensates for the wear of the cone sleeve to a certain extent. When the block 91 continues to rotate a certain angle, the limit on the filter plate 5 will be released. At this time, under the impact of the water flow, the filter plate 5 will move to the left.

[0049] In this embodiment, in the initial state, the compression force of the spring 71 maintains close contact between the short cone sleeve 16 and the long cone sleeve 15, thereby enhancing the sealing performance. When water flows through the filter plate 5, the spring 71 can also buffer the filter plate 5, reducing the wear of the filter plate 5 and the cone sleeve caused by the impact of the water flow. The filter plate 5 can intercept impurities in the fluid, thereby reducing the wear effect of the impurities on the internal components of the valve.

[0050] When the position of the filter plate 5 needs to be adjusted, the position of the block 91 can be changed by rotating the lever 9. When the block 91 rotates a certain angle, the block 91 will release the limit on the filter plate 5. At this time, under the impact of the water flow, the filter plate 5 will overcome the resistance of the spring 71 and move to the left (assuming that the water flow direction is from right to left). The movement of the filter plate 5 will drive the sealing cylinder 7 to slide in the sealing groove 72. At the same time, the spring 71 is compressed and continues to provide a buffering effect. At this time, the sealing performance between the short cone sleeve 16 and the long cone sleeve 15 continues to be enhanced under the push of the filter plate 5, thereby reducing the probability of sealing failure due to large flow.

[0051] By adjusting the lever 9 to change the position of the block 91, the movement and limit state of the filter plate 5 can be flexibly controlled. This dynamic adjustment capability allows the system to operate according to actual needs while reducing unnecessary wear and energy consumption.

[0052] When the filter plate 5 is limited by the block 91, the compression force of the spring 71 not only maintains close contact between the filter plate 5 and the cone sleeve, but also compensates for the wear of the cone sleeve to a certain extent. As the use time increases, the cone sleeve may become thinner or deformed due to wear. At this time, the compression force of the spring 71 can automatically adjust the contact pressure between the cone sleeves, thereby maintaining a continuous sealing effect, which reduces the risk of leakage due to wear and extends the service life of the filtration system.

[0053] Example 3, refer to Figure 5-Figure 11 The cleaning and discharging assembly includes a fan blade 6, a scraper 62, a limit plate 51 and a limit groove 8. The middle part of the fan blade 6 connecting shaft is fixedly connected with a clamping ring 61, and the left end of the fan blade 6 connecting shaft is fixedly connected with a scraper 62. The middle part of the filter plate 5 is provided with a clamping groove 53 matching the clamping ring 61. The fan blade 6 is rotatably connected with the filter plate 5 through the cooperation of the clamping ring 61 and the clamping groove 53. When the fluid passes through the valve, it will drive the fan blade 6 to rotate, so as to achieve buffering and reduce the impact on the valve structure. Impact, the side wall of the scraper 62 facing the filter plate 5 is fixed with soft bristles, the rotation of the fan blade 6 will drive the scraper 62 to rotate synchronously, the limiting groove 8 is located at the front end of the sleeve 31, and the bottom of the right side wall of the filter plate 5 is fixedly connected with a limiting plate 51 matching the limiting groove 8, and the side of the limiting plate 51 close to the filter plate 5 is provided with an inclined portion 52 to facilitate material dropping. The end of the limiting groove 8 passes through the front side wall and the inner wall of the sleeve 31, and a discharge groove 81 is opened on the lower side of the right end of the limiting groove 8.

[0054] It should be noted that the limit plate 51 is an arc-shaped square frame, which can discharge materials on the one hand and block the front side of the limit groove 8 on the other hand. The end of the soft bristles contacts the side wall of the filter plate 5. When the scraper 62 rotates, the soft bristles will clear and clean the filter plate 5, and the impurities will be blocked by the filter plate 5. Under the action of the fan blades 6, the impurities will rotate. When the fluid flow rate is large, the filter plate 5 moves to the left under the action of the fluid. At this time, the limit groove 8 is connected to the inner cavity of the ferrule 31, and the front end of the limit plate 51 forms a contact seal with the front end of the limit groove 8, and the fluid impurities will be discharged downward through the discharge groove 81.

[0055] In this embodiment, when the fluid passes through the valve, it drives the fan blades 6 to rotate. The rotation of the fan blades 6 not only achieves a buffering effect and reduces the impact on the valve structure, but also drives the synchronous rotation of the scraper 62. The side walls of the scraper 62 are fixed with soft bristles, and the ends of these soft bristles are in contact with the side walls of the filter plate 5. When the scraper 62 rotates, the soft bristles will clear and clean the filter plate 5, and brush off the impurities attached to the filter plate 5. The impurities are blocked by the filter plate 5 and rotate under the action of the fan blades 6. This rotation helps to remove the impurities from the filter plate 5 more thoroughly.

[0056] When it is necessary to discharge impurities, the position of the block 91 can be changed by rotating the lever 9 to release the limit on the filter plate 5. At this time, the fluid flow rate is increased, and the filter plate 5 will move to the left under the action of the fluid. This movement makes the limiting groove 8 communicate with the inner cavity of the ferrule 31, providing a discharge channel for fluid impurities, and the front end of the limiting plate 51 forms a contact seal with the front end of the limiting groove 8. This seal ensures that fluid impurities can only be discharged downward through the discharge groove 81. The discharge groove 81 is located at the lower right end of the limiting groove 8. It allows fluid impurities to be smoothly discharged from the system after being connected with the inner cavity of the ferrule 31 through the limiting groove 8. The connection between the limiting groove 8 and the inner cavity of the ferrule 31 is equivalent to constructing a temporary channel. At this time, impurities blocked outside the filter plate 5 will automatically be discharged outward through this channel, and when the fluid flow rate decreases, under the action of the spring 71, the filter plate 5 will reset, and this temporary channel will be closed again. After the impurity discharge is completed, the filter plate 5 can be locked again.

[0057] In addition, an inclined portion 52 is additionally provided on one side of the limiting plate 51 close to the filter plate 5. This design facilitates material discharge and allows impurities to be discharged from the system more smoothly. The limiting plate 51 is not only used for material discharge, but also blocks the front side of the limiting groove 8, ensuring that fluid impurities can only be discharged downward through the discharge groove 81, thereby increasing the sealing and reliability of the system.

[0058] When the fluid passes through the valve, the fan blade 6 is driven to rotate, which achieves buffering of the fluid impact force, reduces the direct impact on the valve structure, and prolongs the service life of the valve. The rotation of the fan blade 6 drives the scraper 62 to rotate synchronously. The soft bristles on the side wall of the scraper 62 are in close contact with the side wall of the filter plate 5, effectively dredging and cleaning the impurities on the filter plate 5, and preventing the accumulation and blockage of impurities on the filter plate 5; by rotating the lever 9 to change the position of the block 91, the limit of the filter plate 5 can be flexibly released to achieve the impurity removal operation. When the fluid flow rate is increased, the filter plate 5 moves to the left under the action of the fluid. Move left to connect the limit groove 8 with the inner cavity of the ferrule 31, constructing a temporary channel through which impurities are automatically discharged. When the fluid flow rate decreases, the spring 71 resets the filter plate 5, closes the temporary channel, and locks the filter plate 5 again after the impurity removal is completed, thereby ensuring the stability and reliability of the system. This design makes the cleaning and discharge process of impurities more automated and simple, reduces manual intervention and maintenance costs, and can flexibly control the impurity removal process by adjusting the fluid flow rate and the position of the block 91 to meet the requirements of different working conditions and fluid characteristics.

[0059] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0060] In the present invention, unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0061] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A sleeve ball valve, comprising a valve body (1), a valve stem (11) rotatably connected to the valve body (1), two valve seats (13) being arranged inside the valve body (1), a ball (12) being rotatably arranged between the two valve seats (13), the lower end of the valve stem (11) being fixedly connected to the upper end of the ball (12), the left end of the valve body (1) being threadedly connected to a valve cover (2), the right end of the valve cover (2) being tightly abutted against the side wall of one of the valve seats (13), the right end of the valve body (1) and the left end of the valve cover (2) being threadedly connected to a screw sleeve (3), the outer side of the screw sleeve (3) being fixedly connected to a sleeve (31), the inner side of the screw sleeve (3) being mounted with a short cone sleeve (16) and a long cone sleeve (15), characterized in that: Also includes: A handle (4), a handle bracket (41) and a locking nut (14), wherein the handle bracket (41) is slidably engaged with the valve stem (11), the handle (4) is sleeved on the outside of the handle bracket (41), and the locking nut (14) is located on the upper side of the handle bracket (41) and is threadedly connected to the valve stem (11); Sealing filter assembly: the sealing filter assembly is arranged at the liquid inlet end of the valve body (1), and the sealing filter assembly can filter and buffer the liquid medium flowing through the valve body (1), and can also enhance the sealing effect of the short cone sleeve (16) and the long cone sleeve (15); Cleaning and discharging component: the cleaning and discharging component is arranged on the sealing filter component and the ferrule (31), and the cleaning and discharging component can automatically discharge impurities filtered by the sealing filter component.

2. A ferrule ball valve according to claim 1, characterized in that: The blanks of the valve body (1) and the valve cover (2) are rolled hexagonal bars, the upper end of the handle bracket (41) is against the inner wall of the handle (4), the lower end of the handle (4) is flush with the upper surface of the valve body (1), and the locking nut between the valve stem (11) and the valve body (1) is a combination of a metal insert anti-loosening nut (14) and an elastic washer to achieve anti-loosening.

3. A ferrule ball valve according to claim 1, characterized in that: The handle bracket (41) is made of metal material, the handle (4) is made of plastic material, and the connection portion between the valve body (1) and the valve cover (2) adopts a double sealing structure of a polytetrafluoroethylene ring and an O-ring.

4. A ferrule ball valve according to claim 1, characterized in that: The sealing filter assembly comprises a filter plate (5) and a sealing groove (72) arranged on a short cone sleeve (16); the sealing groove (72) is distributed in an annular shape along the central axis of the short cone sleeve (16); a sealing cylinder (7) and a spring (71) are fixedly connected to the side wall of the filter plate (5) close to the valve body (1); the spring (71) is located on the inner side of the sealing cylinder (7); the sealing cylinder (7), the spring (71) and the sealing groove (72) are arranged correspondingly; and the filter plate (5) is located between the short cone sleeve (16) and the ferrule (31).

5. A sleeve ball valve according to claim 4, characterized in that: In the initial state, the sealing cylinder (7) is clamped inside the sealing slide groove (72), the right side wall of the filter plate (5) abuts against the right end inner wall of the clamping sleeve (31), and the sealing cylinder (7) and the spring (71) are connected in a sliding sealing manner.

6. A ferrule ball valve according to claim 4, characterized in that: The interior of the clamping sleeve (31) is rotatably connected with a lever (9) and a clamping block (91); the lever (9) is fixedly connected to the clamping block (91); the clamping block (91) is arranged in a fan shape; one end of the lever (9) extends to the outside of the clamping sleeve (31); and the clamping block (91) can limit the left end of the filter plate (5) when it is vertically downward.

7. A sleeve ball valve according to claim 6, characterized in that: The cleaning and discharging assembly comprises a fan blade (6), a scraper (62), a limiting plate (51) and a limiting groove (8); a clamping ring (61) is fixedly connected to the middle of the connecting shaft of the fan blade (6); a scraper (62) is fixedly connected to the left end of the connecting shaft of the fan blade (6); a clamping groove (53) matching the clamping ring (61) is provided in the middle of the filter plate (5); the fan blade (6) is rotatably connected to the filter plate (5) through the cooperation of the clamping ring (61) and the clamping groove (53), and moves toward the filter plate The side wall of the scraper (62) of (5) is fixedly provided with soft bristles, the limiting groove (8) is located at the front end of the sleeve (31), and the bottom of the right side wall of the filter plate (5) is fixedly connected with a limiting plate (51) matching the limiting groove (8), and an inclined portion (52) is provided on the side of the limiting plate (51) close to the filter plate (5), and the end of the limiting groove (8) passes through the front side wall and the inner wall of the sleeve (31), and a discharge groove (81) is opened on the lower side of the right end of the limiting groove (8).

8. A sleeve ball valve according to claim 7, characterized in that: The limiting plate (51) is arranged in an arc-shaped square frame, and the end of the soft bristles contacts the side wall of the filter plate (5). When the fluid flow rate is high, the filter plate (5) moves leftward under the action of the fluid. At this time, the limiting groove (8) is connected to the inner cavity of the ferrule (31), and the front end of the limiting plate (51) forms a contact seal with the front end of the limiting groove (8), and fluid impurities are discharged downward through the discharge groove (81).

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