Valve convenient for replacing accessories

Abstract

The valve comprises a valve body, flange connecting pieces are detachably arranged at the two ends of the valve body, a sealing cylinder is detachably arranged at the top of the valve body, a supporting seat is detachably arranged at the top of the sealing cylinder, and a driving mechanism is detachably arranged at the top of the supporting seat. The bottom of the driving mechanism is fixedly connected with a valve rod, the driving mechanism is used for driving the valve rod to ascend and descend, a valve element is detachably arranged at the end, away from the driving mechanism, of the valve rod, and the valve element is arranged in the valve body. Secondly, all the parts of the valve body are detachably connected, so that no matter which part of the valve body is damaged, the parts are convenient to disassemble for maintenance, accessories are convenient to replace and the like, finally, the sealing performance of connection of all the parts of the valve is considered, and fluid in the valve is further prevented from leaking.

Description

Technical Field

[0001] The present invention relates to the technical field of valves, and in particular to a valve which is convenient for replacing accessories. Background Art

[0002] A valve is a device used to control the direction, pressure, and flow of a fluid in a fluid system. Its main functions include diversion, shutoff, throttling, non-return, diversion, or overflow pressure relief. Valves not only allow the medium (liquid, gas, powder) in pipes and equipment to flow or stop, but also control its flow. They are an indispensable control component in pipeline fluid transportation systems. Daily maintenance of valves includes regular inspection of seals, cleaning of valve surfaces, inspection of connection parts, etc. For important valves, regular professional maintenance and overhaul are also required to ensure their normal operation and service life.

[0003] The existing patent (Announcement No.: CN109667942B) proposes a manual valve that is easy to open and close, including a valve body, an inlet, an outlet, a connecting pipe, a first reinforcing rib plate, a fixing ring, a pressure block, a through hole, a tension gas spring, a round tube, a round sleeve, a groove, a plug strip, a pull rod, a top plate, a threaded rod, a nut, a square cylinder, a piston, a limit guide ring, a pressure rod, a pressure plate, a rubber sealing pad, a second reinforcing rib plate, a compression spring, a fixing rod, a rotating round rod, a handle, a top sleeve, a fixing strip, an interlocking groove, a round block, a round short rod and a through groove. The present invention has a reasonable structure, and the connecting pipe can be easily connected at both ends of the valve body through the installation structure. When disassembling and assembling the connecting pipe, it only needs to take out and put the plug strip and pull the pull rod to complete it. The operation is simple and can save the installation and disassembly time of the valve body; when closing and intercepting or discharging, it is simpler to operate compared with traditional valves and saves the operation time of manual valves.

[0004] The problem with the above valve is that the valve needs to be manually controlled to open and close, which is troublesome and laborious, and the various components are inconvenient to disassemble, and subsequent maintenance and replacement of accessories are troublesome. Therefore, we propose a valve that is easy to replace accessories to solve the above problem. Summary of the invention

[0005] The present invention provides a valve which is convenient for replacing accessories, and solves the technical problem that the existing valve needs to be opened and closed manually and is inconvenient to disassemble and replace accessories.

[0006] To solve the above technical problems, the present invention provides a valve that is easy to replace accessories, including a valve body, flange connectors are detachably provided at both ends of the valve body, a sealing cylinder is detachably provided at the top of the valve body, a support seat is detachably provided at the top of the sealing cylinder, a driving mechanism is detachably provided at the top of the support seat, a valve stem is fixedly connected to the bottom of the driving mechanism, the driving mechanism is used to drive the valve stem to rise and fall, a valve core is detachably provided at one end of the valve stem away from the driving mechanism, and the valve core is arranged in the valve body.

[0007] Preferably, the driving mechanism includes a motor, the output end of the motor is fixedly connected to a screw rod, a lifting plate is threadedly connected to the screw rod, a valve stem is fixedly connected to the bottom of the lifting plate, the valve stem and the lifting plate are staggered, sliding grooves are provided on both sides of the lifting plate, sliders are fixed on both sides of the center of the lifting plate, and the sliders are slidably clamped in the lifting plate.

[0008] The above technical solution is adopted: the driving mechanism includes a motor, the output end of the motor is fixedly connected to a screw rod, a lifting plate is threadedly connected to the screw rod, the bottom of the lifting plate is fixedly connected to a valve stem, the valve stem and the lifting plate are staggered, slide grooves are provided on both sides of the lifting plate, sliders are fixed on both sides of the center of the lifting plate, the sliders are slidably clamped in the lifting plate, the output end of the motor controls the rotation of the screw rod, the rotation of the screw rod causes the lifting plate to move up and down along the slide groove, so that the valve stem pulls the valve core up and down to realize the switching and closing of the fluid in the valve.

[0009] Preferably, a first bolt is provided between the flange connector and the valve body, and the flange connector and the valve body are fixedly connected by the first bolt. A first sealing ring is also provided between the flange connector and the valve body. A sealing groove is provided on the flange connector, and the first sealing ring is embedded in the sealing groove. The thickness of the first sealing ring is greater than the depth of the sealing groove.

[0010] The above technical solution is adopted: a first bolt is arranged between the flange connector and the valve body, and the first bolt is used to fix the connection, a first sealing ring is also arranged between the flange connector and the valve body, a sealing groove is opened on the flange connector, the first sealing ring is embedded in the sealing groove, and the thickness of the first sealing ring is greater than the depth of the sealing groove, so that the flange connector and the valve body are easy to disassemble, and the sealing between the flange connector and the valve body is ensured at the same time.

[0011] Preferably, a screw is provided on the top of the valve body, and a mounting plate is fixed on the bottom of the sealing cylinder. A mounting hole is opened on the mounting plate, and the size of the mounting hole is adapted to the size of the screw. An anti-detachment gasket and a nut are adapted to the screw, and the anti-detachment gasket and the nut fix the sealing cylinder to the valve body.

[0012] The above technical solution is adopted: a screw is arranged on the top of the valve body, a mounting plate is fixed on the bottom of the sealing cylinder, a mounting hole is opened on the mounting plate, the size of the mounting hole is adapted to the size of the screw, and anti-detachment gaskets and nuts are arranged to match the screw. The anti-detachment gaskets and nuts fix the sealing cylinder on the valve body, so that the sealing cylinder and the valve body are easy to disassemble.

[0013] Preferably, a second sealing ring is further provided between the sealing cylinder and the valve body.

[0014] By adopting the above technical solution, a second sealing ring is further provided between the sealing cylinder and the valve body to ensure the sealing between the sealing cylinder and the valve body and avoid fluid leakage.

[0015] Preferably, a fixing plate is fixed on the top of the sealing cylinder, a second bolt is provided between the fixing plate and the support seat, and the second bolt is threadedly connected to the fixing plate to fix the support seat on the sealing cylinder.

[0016] The above technical solution is adopted: a fixing plate is fixed through the top of the sealing cylinder, a second bolt is arranged between the fixing plate and the support seat, and the second bolt is threadedly connected with the fixing plate to fix the support seat on the sealing cylinder.

[0017] Preferably, a connecting plate is fixed to the bottom of the valve stem, and a third bolt is provided between the connecting plate and the valve core. The third bolt fixes the valve stem to the valve core, so that the valve stem and the valve core are easy to disassemble.

[0018] The above technical solution is adopted: a connecting plate is fixed through the bottom of the valve stem, a third bolt is arranged between the connecting plate and the valve core, and the third bolt fixes the valve stem on the valve core.

[0019] Preferably, a third sealing ring is provided at the bottom of the valve core, and the third sealing ring is embedded in the bottom of the valve core.

[0020] By adopting the above technical solution, a third sealing ring is arranged at the bottom of the valve core, and the third sealing ring is embedded in the bottom of the valve core, so that the valve core can well control the circulation and closing of the fluid in the valve body.

[0021] Preferably, the valve body comprises a water inlet end and a water outlet end, a valve chamber is arranged between the water inlet end and the water outlet end, and the valve core is arranged in the valve chamber.

[0022] The above technical solution is adopted: the valve body includes a water inlet end and a water outlet end, a valve chamber is arranged between the water inlet end and the water outlet end, the valve core is arranged in the valve chamber, the fluid enters from the water inlet end, when the valve core is located at the bottom of the valve chamber, the fluid is closed and cannot flow, when the valve core is located at the top of the valve chamber, the fluid can flow completely in the valve body.

[0023] Preferably, a water flow hole is opened on one side of the valve chamber, and the water flow hole is communicated with the water inlet end and the water outlet end.

[0024] The above technical solution is adopted: a water flow hole is opened on one side of the valve chamber, and the water flow hole is connected with the water inlet end and the water outlet end, so that the fluid can enter along the water inlet end, flow to the water outlet end through the water flow hole, and then flow out of the valve body.

[0025] Compared with the related art, the present invention has the following beneficial effects: 1. Compared with the traditional valve, the present invention is provided with a driving mechanism, and flange connectors are detachably provided at both ends of the valve body, a sealing cylinder is detachably provided at the top of the valve body, a support seat is detachably provided at the top of the sealing cylinder, a driving mechanism is detachably provided at the top of the support seat, a valve stem is fixedly connected to the bottom of the driving mechanism, the driving mechanism is used to drive the valve stem to rise and fall, and a valve core is detachably provided at one end of the valve stem away from the driving mechanism, and the valve core is arranged in the valve body. The rotation of the motor in the driving mechanism drives the screw rod to rotate, so that the lifting plate on the screw rod moves up and down along the slide groove, and then the valve stem fixed on the lifting plate pulls the valve core to move up and down in the valve chamber of the valve body, thereby controlling the flow and closing of the fluid in the valve body. Firstly, it avoids the traditional need for manpower to manually control the opening and closing of the valve, saving manpower. Secondly, the traditional valve cannot accurately control the size of the fluid passing through. The present invention is provided with a pointer and a scale, which are used in conjunction with the driving mechanism. The indication of the pointer on the scale can know the upward movement distance of the valve core in the valve chamber, and then know the opening and closing size of the water flow hole, and then know the size of the water flow through the valve body. Finally, all parts of the valve body are detachably connected, so that no matter which part of the valve body is damaged, it is convenient to disassemble for maintenance and replace accessories. The design of the present invention also takes into account the sealing of the connections between the various parts of the valve, further preventing fluid leakage in the valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of a valve that is convenient for replacing accessories; Figure 2 This is a disassembled structural diagram between the flange connection and the valve body in a valve that is convenient for replacing accessories; Figure 3 This is a disassembled structural diagram between the sealing cylinder and the valve body in a valve that is convenient for replacing accessories; Figure 4 This is a disassembled structural diagram of a support seat, a sealing cylinder and a driving mechanism in a valve that is convenient for replacing accessories; Figure 5 A schematic diagram of the connection structure between the valve stem and the valve core in a valve that is convenient for replacing accessories; Figure 6A schematic diagram of the connection between a valve stem, a sealing cylinder, a valve core and a valve body in a valve that is easy to replace accessories; Figure 7 This is a diagram of the internal structure of a driving mechanism in a valve that is convenient for replacing accessories; Figure 8 It is a schematic diagram of the structure of a pointer and a scale in a valve that is convenient for replacing accessories; Fig. 9 It is a schematic diagram of the structure of the valve chamber and the valve body in a valve that is convenient for replacing accessories; Fig.10 A schematic diagram of the cross-sectional structure of a valve chamber and a valve core in a valve that facilitates replacement of accessories; Fig.11 The present invention is a schematic diagram of the specific structure of a valve core in a valve which is convenient for replacing accessories.

[0027] Numbers in the figure: 1, valve body; 11, screw; 12, water inlet end; 13, water outlet end; 14, valve chamber; 15, water flow hole; 16, clamping block; 17, clamping groove; 2, flange connector; 21, flange plate; 22, sealing groove; 23, first sealing ring; 24, first bolt; 3, sealing cylinder; 31, mounting plate; 32, mounting hole; 33, second sealing ring; 34, anti-drop gasket; 35, nut; 36. Fixed plate; 4. Support seat; 41. Second bolt; 5. Driving mechanism; 51. Motor; 52. Screw rod; 53. Slide groove; 54. Slider; 55. Lifting plate; 6. Valve stem; 61. Connecting plate; 63. Pointer; 7. Valve core; 71. Third bolt; 72. Third sealing ring; 73. Elastic member; 74. Spline column; 75. Annular groove; 76. Connecting hole; 77. Sealing plug; 8. Scale. DETAILED DESCRIPTION

[0028] 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 only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Embodiment 1

[0029] like Figure 1-Figure 7 As shown, a valve for easy replacement of accessories comprises a valve body 1, flange connectors 2 are detachably provided at both ends of the valve body 1, a sealing cylinder 3 is detachably provided at the top of the valve body 1, a support seat 4 is detachably provided at the top of the sealing cylinder 3, a driving mechanism 5 is detachably provided at the top of the support seat 4, a valve stem 6 is fixedly connected to the bottom of the driving mechanism 5, the driving mechanism 5 is used to drive the valve stem 6 to rise and fall, a valve core 7 is detachably provided at one end of the valve stem 6 away from the driving mechanism 5, and the valve core 7 is arranged in the valve body 1; The two ends of the valve body 1 are detachably provided with flange connectors 2, the top of the valve body 1 is detachably provided with a sealing cylinder 3, the top of the sealing cylinder 3 is detachably provided with a support seat 4, the top of the support seat 4 is detachably provided with a driving mechanism 5, the bottom of the driving mechanism 5 is fixedly connected with a valve stem 6, the driving mechanism 5 is used to drive the lifting of the valve stem 6, and the end of the valve stem 6 away from the driving mechanism 5 is detachably provided with a valve core 7, the valve core 7 is arranged in the valve body 1, and the driving mechanism 5 controls the valve stem 6 to pull the valve core 7 to move up and down in the valve body 1, so as to control the flow and closing of the fluid in the valve body 1. Firstly, it avoids the need for manual manpower to manually control the opening and closing of the valve, saving manpower. Secondly, all parts of the valve body 1 are detachably connected, so that no matter which part of the valve body 1 is damaged, it is convenient to disassemble for maintenance and replacement of accessories. Finally, the design of the present invention takes into account the sealing of the connection between the various parts of the valve, and further prevents leakage of the fluid in the valve.

[0030] Embodiment 2

[0031] like Figure 7 As shown, the driving mechanism 5 includes a motor 51, the output end of the motor 51 is fixedly connected to a screw rod 52, the screw rod 52 is threadedly connected to a lifting plate 55, the bottom of the lifting plate 55 is fixedly connected to a valve stem 6, the valve stem 6 and the lifting plate 55 are staggered, and slide grooves 53 are arranged on both sides of the lifting plate 55, and sliders 54 are fixed on both sides of the center of the lifting plate 55. The sliders 54 are slidably clamped in the lifting plate 55, and the output end of the motor 51 controls the rotation of the screw rod 52. The rotation of the screw rod 52 causes the lifting plate 55 to move up and down along the slide groove 53, so that the valve stem 6 pulls the valve core 7 to move up and down, thereby realizing the switching and closing of the fluid in the valve; like Figure 2 As shown, a first bolt 24 is provided between the flange connector 2 and the valve body 1, and the flange connector 2 and the valve body 1 are fixedly connected by the first bolt 24. A first sealing ring 23 is also provided between the flange connector 2 and the valve body 1. A sealing groove 22 is provided on the flange connector 2, and the first sealing ring 23 is embedded in the sealing groove 22. The thickness of the first sealing ring 23 is greater than the depth of the sealing groove 22, so that the flange connector 2 and the valve body 1 are easy to disassemble, and the sealing between the flange connector 2 and the valve body 1 is ensured. A flange plate 21 is also provided on the flange connector 2, and the flange plate 21 is used to connect with the outer pipe; like Figure 3 As shown, a screw 11 is arranged on the top of the valve body 1, and a mounting plate 31 is fixed on the bottom of the sealing cylinder 3. A mounting hole 32 is opened on the mounting plate 31. The size of the mounting hole 32 is adapted to the size of the screw 11. An anti-slip gasket 34 and a nut 35 are adapted to the screw 11. The anti-slip gasket 34 and the nut 35 fix the sealing cylinder 3 on the valve body 1, so that the sealing cylinder 3 and the valve body 1 are easy to disassemble. A second sealing ring 33 is also arranged between the sealing cylinder 3 and the valve body 1 to ensure the sealing between the sealing cylinder 3 and the valve body 1 and avoid fluid leakage. like Figure 4 , Figure 5 As shown, a fixing plate 36 is fixed to the top of the sealing cylinder 3, a second bolt 41 is arranged between the fixing plate 36 and the support seat 4, the second bolt 41 is threadedly connected with the fixing plate 36 to fix the support seat 4 on the sealing cylinder 3, a connecting plate 61 is fixed to the bottom of the valve stem 6, a third bolt 71 is arranged between the connecting plate 61 and the valve core 7, and the third bolt 71 fixes the valve stem 6 on the valve core 7; like Figure 5 , Figure 6 As shown, a third sealing ring 72 is provided at the bottom of the valve core 7, and the third sealing ring 72 is embedded in the bottom of the valve core 7, so that the valve core 7 can well control the circulation and closing of the fluid in the valve body 1, and the valve body 1 includes a water inlet end 12 and a water outlet end 13, and a valve chamber 14 is provided between the water inlet end 12 and the water outlet end 13, and the valve core 7 is provided in the valve chamber 14, and the fluid enters from the water inlet end 12. When the valve core 7 is located at the bottom of the valve chamber 14, the fluid is closed and cannot circulate. When the valve core 7 is located at the top of the valve chamber 14, the fluid can completely circulate in the valve body 1, and a water flow hole 15 is opened on one side of the valve chamber 14, and the water flow hole 15 is connected with the water inlet end 12 and the water outlet end 13, so that the fluid can enter along the water inlet end 12, flow to the water outlet end 13 through the water flow hole 15, and then flow out of the valve body 1.

[0032] In addition, if Fig.11 As shown, the valve core 7 is provided with a plurality of elastic members 73 which are evenly distributed in a circle and whose lower ends abut against the upper surface of the third sealing ring 72. The elastic members 73 abut against the upper surface of the third sealing ring 72 and the convex shoulder contact position of the inner wall of the valve chamber 14 to make the seal more stable and reliable.

[0033] The third sealing ring 72 is disc-shaped and the lower surface of the valve core 7 and the upper surface of the third sealing ring 72 are sealed together, and a spline column 74 is provided at the center of the upper surface of the third sealing ring 72, and a spline hole is provided at the center of the lower surface of the valve core 7, and the spline column 74 and the spline hole are meshed, and an annular groove 75 is provided on the lower surface of the valve core 7, and the annular groove 75 and the upper surface of the third sealing ring 72 form an annular negative pressure chamber, and a connecting hole 76 connected to the annular negative pressure chamber is provided in the axial direction of the valve core 7, and a sealing plug 77 is provided at the upper orifice of the connecting hole 76.

[0034] The annular negative pressure chamber can ensure that the third sealing ring 72 is fixed to the lower surface of the valve core 7. At the same time, when the lower surface of the third sealing ring 72 near the water flow hole 15 is worn to a certain extent after the valve is used for a long time, positive pressure can be introduced into the annular negative pressure chamber, and then the position of the third sealing ring 72 can be adjusted to prevent the third sealing ring 72 from wearing eccentrically and affecting the sealing performance of the valve when it is closed. And the subsequent maintenance cost can be reduced to a certain extent.

[0035] The elastic member 73 is a spring, and the axis of the elastic member 73 is distributed at an angle less than 1° with the axis of the valve core 7. At this time, the elastic member 73 exerts an elastic force inclined downward and inward on the outer edge of the third sealing ring 72 after eccentric wear to improve the sealing performance.

[0036] Embodiment 3

[0037] like Figure 8 As shown, a scale 8 is fixed on the top of the sealing cylinder 3, and a pointer 63 is fixed on the valve stem 6. When the valve is opened, the upward movement distance of the valve stem 6 is used to judge the upward movement distance of the valve core 7 in the valve chamber 14, so as to know the passing size of the fluid in the valve body 1.

[0038] like Figure 3 , Fig. 9 , Fig.10 As shown, when the fluid passes through the valve body 1, impurities in the fluid, such as sand and gravel, will impact the valve chamber 14, thereby damaging the inner wall of the valve chamber 14, resulting in the valve body 1 being unable to be completely closed when closing the passage of the fluid. In order to solve this problem, the valve chamber 14 and the valve body 1 are designed to be detachable, which is convenient for replacing the structure of the valve chamber 14. A clamping groove 17 is provided on the valve body 1, and clamping blocks 16 are fixed at both ends of the valve chamber 14. The clamping blocks 16 are adapted to the clamping groove 17, so that the valve chamber 14 can be completely installed in the valve body 1, and then, the sealing of the valve chamber 14 and the valve body 1 is ensured by the second sealing ring 33. Finally, the sealing tube 3 at the top of the valve body 1 is fixed to the valve body 1, so that the valve chamber 14 can be firmly set in the valve body 1, and the valve core 7 moves up and down in the valve chamber 14, changing the size of the water flow hole 15, thereby changing the size of the fluid passing through the valve body 1.

[0039] Working principle: Figure 1-Figure 7 As shown, when fluid needs to pass through, the motor 51 in the driving mechanism 5 is started, and the output end of the motor 51 rotates to drive the screw rod 52 to rotate, so that the lifting plate 55 moves up along the slide groove 53. Since the screw rod 52 and the valve stem 6 are staggered, the lifting plate 55 pulls the valve stem 6 to move up and the screw rod 52 is not affected. The valve stem 6 pulls the valve core 7 to move up in the valve chamber 14 in the valve body 1. At this moment, the fluid in the valve body 1 enters from the water inlet end 12, flows to the water outlet end 13 through the water flow hole 15, and finally flows out of the valve body 1 through the water outlet end 13. Similarly, when the fluid in the valve body 1 needs to be closed, the motor 51 in the driving mechanism 5 is started to make the output end of the motor 51 rotate in the opposite direction, thereby avoiding the need to manually control the opening and closing of the valve, saving manpower. In addition, the various components of the valve are detachably connected. When the valve accessories are damaged and need to be repaired and replaced, it is easy to disassemble and repair. Finally, the design of the present invention takes into account the sealing of the connections of various parts of the valve, thereby avoiding leakage of the fluid in the valve.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A valve that is easy to replace accessories, characterized in that: The invention comprises a valve body (1), flange connectors (2) are detachably provided at both ends of the valve body (1), a sealing cylinder (3) is detachably provided at the top of the valve body (1), a support seat (4) is detachably provided at the top of the sealing cylinder (3), a driving mechanism (5) is detachably provided at the top of the support seat (4), a valve stem (6) is fixedly connected to the bottom of the driving mechanism (5), the driving mechanism (5) is used to drive the valve stem (6) to rise and fall, a valve core (7) is detachably provided at one end of the valve stem (6) away from the driving mechanism (5), and the valve core (7) is arranged in the valve body (1).

2. A valve for facilitating replacement of accessories according to claim 1, characterized in that: The driving mechanism (5) comprises a motor (51), the output end of the motor (51) is fixedly connected to a screw rod (52), a lifting plate (55) is threadedly connected to the screw rod (52), the bottom of the lifting plate (55) is fixedly connected to a valve stem (6), the valve stem (6) and the lifting plate (55) are staggered, sliding grooves (53) are provided on both sides of the lifting plate (55), and sliding blocks (54) are fixed on both sides of the center of the lifting plate (55), and the sliding blocks (54) are slidably clamped in the lifting plate (55).

3. A valve for facilitating replacement of accessories according to claim 1, characterized in that: A first bolt (24) is provided between the flange connection piece (2) and the valve body (1), and the flange connection piece (2) and the valve body (1) are fixedly connected by the first bolt (24). A first sealing ring (23) is also provided between the flange connection piece (2) and the valve body (1). A sealing groove (22) is provided on the flange connection piece (2), and the first sealing ring (23) is embedded in the sealing groove (22). The thickness of the first sealing ring (23) is greater than the depth of the sealing groove (22).

4. A valve for facilitating replacement of accessories according to claim 1, characterized in that: A screw rod (11) is arranged at the top of the valve body (1), and a mounting plate (31) is fixed at the bottom of the sealing cylinder (3). A mounting hole (32) is opened on the mounting plate (31), and the size of the mounting hole (32) is adapted to the size of the screw rod (11). An anti-slip gasket (34) and a nut (35) are provided to match the screw rod (11), and the anti-slip gasket (34) and the nut (35) fix the sealing cylinder (3) on the valve body (1).

5. A valve for facilitating replacement of accessories according to claim 4, characterized in that: A second sealing ring (33) is also provided between the sealing cylinder (3) and the valve body (1).

6. A valve for facilitating replacement of accessories according to claim 5, characterized in that: A fixing plate (36) is fixed to the top of the sealing cylinder (3), a second bolt (41) is provided between the fixing plate (36) and the support seat (4), and the second bolt (41) is threadedly connected to the fixing plate (36) to fix the support seat (4) on the sealing cylinder (3).

7. A valve for facilitating replacement of accessories according to claim 1, characterized in that: A connecting plate (61) is fixed to the bottom of the valve stem (6), a third bolt (71) is provided between the connecting plate (61) and the valve core (7), and the third bolt (71) fixes the valve stem (6) to the valve core (7).

8. A valve for facilitating replacement of accessories according to claim 1, characterized in that: A third sealing ring (72) is provided at the bottom of the valve core (7), and the third sealing ring (72) is embedded in the bottom of the valve core (7).

9. A valve for facilitating replacement of accessories according to claim 1, characterized in that: The valve body (1) comprises a water inlet end (12) and a water outlet end (13), a valve chamber (14) is arranged between the water inlet end (12) and the water outlet end (13), and the valve core (7) is arranged in the valve chamber (14).

10. A valve for facilitating replacement of accessories according to claim 9, characterized in that: A water flow hole (15) is provided on one side of the valve chamber (14), and the water flow hole (15) is in communication with the water inlet end (12) and the water outlet end (13).

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