Deflection spin valve

Abstract

The utility model relates to the technical field of offset spin valves, and discloses an offset spin valve which comprises a valve body, a valve element assembly is arranged in the valve body, the valve element assembly comprises a valve element rotationally connected to the bottom of an inner cavity of the valve body, a valve rod is fixedly connected in the valve element, and the valve rod penetrates through the valve body and is rotationally connected with the valve body. The outer side of the valve element is rotationally connected with two first bearings, the two first bearings are arranged on the outer sides of the upper end and the lower end of the valve element correspondingly, and the interior of the valve element is in threaded connection with two first screws. The spherical crown is arranged in a hemispherical mode, water flow can be well guided, pressure generated when the water flow scours on the spherical crown is conducted out, the service life of the spherical crown is prolonged, the service life of the valve is prolonged, the end of the first screw is protected through the spherical crown, the possibility that the first screw is rusted is reduced, and the service life of the valve is prolonged. Therefore, the possibility of water leakage is reduced, and the service life of the valve is further prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to eccentric rotary valve technical field, more specifically, the utility model relates to an eccentric rotary valve. BACKGROUND

[0002] Eccentric rotary valve is also called cam deflection valve, has eight decades water product, its working principle is just an eccentric rotating sector valve, utilizes eccentric ball crown and valve seat tangent, opens, ball core separates from valve seat, closes, ball core gradually contacts valve seat, makes ball to valve seat produce pressure.

[0003] The screw head of the eccentric rotary valve exposed outside the valve core when in use, when the eccentric rotary valve starts to flow, the screw head will be constantly washed by the water flow, and the screw will be constantly washed by the water flow, which will cause it to be more prone to rust, causing pollution by water, and the rusty screw may cause unstable connection, leading to the possibility of water leakage, reducing the service life of the valve. UTILITY MODEL CONTENTS

[0004] In order to overcome the shortcomings of the prior art, the utility model provides an eccentric rotary valve, which has the advantages of protecting the screw and improving the service life of the valve.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: an eccentric rotary valve, comprising a valve body, a valve core assembly is arranged in the valve body, the valve core assembly comprises a valve core rotatably connected to the bottom of the inner cavity of the valve body, a valve rod is fixedly connected inside the valve core, the valve rod penetrates the valve body and is rotatably connected to the valve body, two first bearings are rotatably connected to the outside of the valve core, the two first bearings are arranged on the upper and lower ends of the valve core respectively, two first screws are threadedly connected inside the valve core, a ball crown is threadedly connected outside the first screw, a split ring is fixedly connected inside the ball crown, and the split ring is threadedly connected to the outside of the first screw.

[0006] As a preferred technical scheme of the utility model, a mounting assembly is arranged in the valve body, the mounting assembly comprises two second screws fixedly threadedly connected to the inside of the valve body, a valve seat is threadedly connected to the outside of the second screw, the outside of the valve seat is slidably connected to the outside of the ball crown, and a third gasket is fixedly connected between the valve seat and the valve body.

[0007] As a preferred technical scheme of the utility model, a dustproof support assembly is arranged in the valve body, the dustproof support assembly comprises a bearing housing fixedly connected to the inside of the valve body, a first gasket is fixedly connected between the bottom of the bearing housing and the valve body, the bearing housing is sleeved outside the valve core, the inside of the bearing housing is fixedly connected to the outside of the first bearing, two dustproof fillers are fixedly connected to the inside of the bearing housing, and the two dustproof fillers are arranged at the ends of the two first bearings respectively.

[0008] As a preferred technical scheme of the utility model, the bottom of the valve body is provided with a sealing assembly, the sealing assembly comprises a bottom cover which is slidably connected to the inside of the valve body, two bolts are threadedly connected to the inside of the bottom cover, the bolts are threadedly connected to the inside of the valve body, a fourth gasket is fixedly connected between the bottom cover and the valve body, and an adjusting pad is fixedly connected between the top of the bottom cover and the bottom of the valve core.

[0009] As a preferred technical scheme of the utility model, the inside of the valve body is provided with a pressing assembly, the pressing assembly comprises a stuffing box which is fixedly connected to the inside of the valve body, a second bearing is fixedly connected to the inside of the stuffing box, a thrust pad is fixedly connected to the inside of the stuffing box, the bottom of the thrust pad is fixedly connected to the top of the valve core, a stuffing gasket is fixedly connected to the inside of the stuffing box, a stuffing pressing sleeve is fixedly connected to the inside of the stuffing box, the stuffing gasket and the stuffing pressing sleeve are filled with stuffing, a stuffing pressing plate is abutted to the top of the stuffing pressing sleeve, studs are threadedly connected between the stuffing pressing plate and the stuffing box, disc spring bearings are fixedly connected between the bottom of the studs and the top of the stuffing pressing plate, nuts are threadedly connected to the outside of the studs, the studs and the nuts are both provided with two, and the stuffing box, the stuffing gasket, the stuffing pressing sleeve, the second bearing and the stuffing pressing plate are all penetrated by the valve rod and are slidably connected.

[0010] As a preferred technical scheme of the utility model, the inside of the bearing box is threadedly connected with a second stud, the outside of the second stud is threadedly connected with a second nut, the outside of the second stud is threadedly connected with the inside of the stuffing box, and a second gasket is fixedly connected between the stuffing box and the bearing box.

[0011] Compared with the prior art, the utility model has the advantages of the following:

[0012] 1、 the utility model discloses a half -spherical setting of the spherical cap can guide the water flow well, the water flow is washed on the spherical cap in this way, the service life of the spherical cap is increased, the service life of the valve is increased, the end of the first screw is protected by the spherical cap, the possibility of rust of the first screw is reduced, the possibility of water leakage is reduced, and the service time of the valve is further increased.

[0013] 2、 the utility model discloses a rotating nut, the stud is rotated in this way, the disc spring bearing is extruded in this way, the pressure is transmitted to the stuffing pressing plate in this way, the pressure is transmitted to the stuffing pressing sleeve in this way, the stuffing is pressed in this way, the gap between the bearing box and the valve rod can be filled with dustproof stuffing arranged in the inside of the bearing box, and the possibility of dust in the inside is reduced. DRAWINGS

[0014] Figure 1 It is the whole front view structure schematic diagram of the utility model.

[0015] Figure 2 This is a schematic diagram of the overall cross-sectional structure of the utility model;

[0016] Figure 3 For this utility model Figure 2 Schematic diagram of the enlarged structure of area A;

[0017] Figure 4 For this utility model Figure 2 Schematic diagram of the enlarged structure of the middle B area;

[0018] Figure 5 For this utility model Figure 2 Schematic diagram of the enlarged structure of area C in the middle.

[0019] In the figure: 1. Valve body; 2. Valve core; 3. Ball crown; 4. Split ring; 5. Valve seat; 6. Bearing box; 7. First screw; 8. Dustproof packing; 9. First bearing; 10. Second screw; 11. Bolt; 12. Thrust pad; 13. Stuffing box; 14. Stuffing pad; 15. Packing sleeve; 16. Packing pressure plate; 17. Bottom cover; 18. Adjusting pad; 19. Valve stem; 20. First gasket; 21. Second gasket; 22. Second bearing; 23. Packing; 24. Stud; 25. Nut; 26. Third gasket; 27. Fourth gasket; 28. Disc spring. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only 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 making creative efforts are within the scope of protection of the present invention.

[0021] like Figures 1 to 5 As shown, the utility model provides a skew rotation valve, including a valve body 1, a valve core assembly is arranged inside the valve body 1, the valve core assembly includes a valve core 2 rotatably connected to the bottom of the inner cavity of the valve body 1, a valve stem 19 is fixedly connected to the inside of the valve core 2, the valve stem 19 passes through the valve body 1 and is rotatably connected to the valve body 1, two first bearings 9 are rotatably connected to the outside of the valve core 2, the two first bearings 9 are respectively arranged on the outside of the upper and lower ends of the valve core 2, two first screws 7 are threadedly connected to the inside of the valve core 2, the outside of the first screw 7 is threadedly connected to a spherical crown 3, the inside of the spherical crown 3 is fixedly connected to a split ring 4, and the inside of the split ring 4 is threadedly connected to the outside of the first screw 7.

[0022] By rotating the valve stem 19, the valve core 2 is rotated, thereby rotating the spherical cap 3, so that the spherical cap 3 is blocked with the inside of the valve seat 5, thereby blocking the water flow. When the water flow needs to be opened, the valve stem 19 can be rotated again, thereby repeating the above operation, so that the water flow is opened. When the water flow flows through the spherical cap 3, the hemispherical arrangement of the spherical cap 3 can guide the water flow well, thereby conducting the pressure of the water flow on the spherical cap 3, thereby increasing the service life of the spherical cap 3, thereby increasing the service life of the valve. The end of the first screw 7 is protected by the spherical cap 3, which reduces the possibility of rusting of the first screw 7, thereby reducing the possibility of water leakage, thereby further increasing the service time of the valve.

[0023] The valve body 1 is provided with a mounting assembly, which comprises two second screws 10 fixedly screwed in the inside of the valve body 1, the valve seat 5 is screwed on the outside of the second screw 10, the valve seat 5 is slidably connected with the outside of the spherical cap 3, and the third gasket 26 is fixedly connected between the valve seat 5 and the valve body 1.

[0024] The valve seat 5 is fixed by the second screw 10, so that the position of the valve seat 5 is fixed, so that the valve seat 5 can better combine with the spherical cap 3, so that it can be sealed.

[0025] The valve body 1 is provided with a dustproof support assembly, which comprises a bearing housing 6 fixedly connected to the inside of the valve body 1, the first gasket 20 is fixedly connected between the bottom of the bearing housing 6 and the valve body 1, the bearing housing 6 is sleeved on the outside of the valve core 2, the first bearing 9 is fixedly connected to the inside of the bearing housing 6, and the two dustproof fillers 8 are fixedly connected in the inside of the bearing housing 6.

[0026] The dustproof filler 8 arranged in the inside of the bearing housing 6 can fill the gap between the bearing housing 6 and the valve stem 19, thereby reducing the possibility of dust inside.

[0027] The bottom of the valve body 1 is provided with a sealing assembly, which comprises a bottom cover 17 slidably connected to the inside of the valve body 1, two bolts 11 are screwed in the inside of the bottom cover 17, the bolts 11 are screwed in the inside of the valve body 1, the fourth gasket 27 is fixedly connected between the bottom cover 17 and the valve body 1, and the adjusting pad 18 is fixedly connected between the top of the bottom cover 17 and the bottom of the valve core 2.

[0028] The valve body 1 and the bottom cover 17 are fixed by the bolts 11, so that the inside of the valve body 1 can be sealed.

[0029] The valve body 1 is internally provided with a pressing assembly, the pressing assembly comprises a stuffing box 13 fixedly connected to the inside of the valve body 1, the stuffing box 13 is internally fixedly connected with a second bearing 22, the stuffing box 13 is internally fixedly connected with a thrust pad 12, the bottom of the thrust pad 12 is fixedly connected with the top of the valve core 2, the stuffing box 13 is internally fixedly connected with a packing pad 14, the stuffing box 13 is internally fixedly connected with a packing pressing sleeve 15, the packing pad 14 and the packing pressing sleeve 15 are filled with a packing 23, the top of the packing pressing sleeve 15 abuts against a packing pressing plate 16, the packing pressing plate 16 and the stuffing box 13 are threadedly connected with studs 24, the bottom of the stud 24 and the top of the packing pressing plate 16 are fixedly connected with a disc spring 28, the outer side of the stud 24 is threadedly connected with a nut 25, the studs 24 and the nuts 25 are both provided with two, the stuffing box 13, the packing pad 14, the packing pressing sleeve 15, the second bearing 22 and the packing pressing plate 16 are all penetrated by a valve rod 19 and are slidingly connected.

[0030] By rotating the nut 25, the stud 24 is driven to rotate, the disc spring 28 is extruded, the pressure is transmitted to the packing pressing plate 16, and the pressure is transmitted to the packing pressing sleeve 15, and the packing 23 is pressed.

[0031] The inside of the bearing box 6 is threadedly connected with the second stud 24, the outer side of the second stud 24 is threadedly connected with the second nut 25, the outer side of the second stud 24 is threadedly connected with the inside of the stuffing box 13, and the second gasket 21 is fixedly connected between the stuffing box 13 and the bearing box 6.

[0032] By rotating the second nut 25, the second stud 24 is driven to rotate, and the bearing box 6 and the stuffing box 13 are combined.

[0033] The working principle and use process of the utility model are as follows: through the rotation of the valve rod 19, the valve core 2 is driven to rotate, the spherical cap 3 is driven to rotate, the spherical cap 3 is blocked with the inside of the valve seat 5, and the water flow is blocked, when the water flow needs to flow, the valve rod 19 can be rotated again, the above operation is repeated, the water flow is opened, when the water flow flows through the spherical cap 3, the hemispherical arrangement of the spherical cap 3 can guide the water flow well, the pressure of the water flow washed on the spherical cap 3 is conducted out, the service life of the spherical cap 3 is increased, the service life of the valve is increased, the end of the first screw 7 is protected by the spherical cap 3, the possibility of rust of the first screw 7 is reduced, the possibility of water leakage is reduced, and the use time of the valve is further increased.

[0034] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0035] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A skew valve, comprising a valve body (1), characterized in that: A valve core assembly is provided inside the valve body (1), and the valve core assembly includes a valve core (2) rotatably connected to the bottom of the inner cavity of the valve body (1), a valve stem (19) is fixedly connected inside the valve core (2), the valve stem (19) passes through the valve body (1) and is rotatably connected to the valve body (1), two first bearings (9) are rotatably connected to the outside of the valve core (2), and the two first bearings (9) are respectively provided on the outside of the upper and lower ends of the valve core (2), the valve core (2) is internally threadedly connected to two first screws (7), the first screw (7) is threadedly connected to the outside of the ball crown (3), the ball crown (3) is internally fixedly connected to a split ring (4), and the inside of the split ring (4) is threadedly connected to the outside of the first screw (7).

2. A skew rotation valve according to claim 1, characterized in that: A mounting assembly is provided inside the valve body (1), and the mounting assembly includes two second screws (10) fixedly threadedly connected to the inside of the valve body (1), the outer side of the second screws (10) is threadedly connected to the valve seat (5), the outer side of the valve seat (5) is slidably connected to the outer side of the spherical crown (3), and a third gasket (26) is fixedly connected between the valve seat (5) and the valve body (1).

3. The eccentric rotation valve according to claim 1, characterized in that: A dustproof support assembly is provided inside the valve body (1), and the dustproof support assembly includes a bearing box (6) fixedly connected to the inside of the valve body (1), a first gasket (20) is fixedly connected between the bottom of the bearing box (6) and the valve body (1), the bearing box (6) is sleeved on the outside of the valve core (2), the inside of the bearing box (6) is fixedly connected to the outside of the first bearing (9), and two dustproof fillers (8) are fixedly connected to the inside of the bearing box (6), and the two dustproof fillers (8) are respectively provided at the ends of the two first bearings (9).

4. The eccentric rotation valve according to claim 1, characterized in that: A closing assembly is provided at the bottom of the valve body (1), and the closing assembly includes a bottom cover (17) slidably connected to the inside of the valve body (1), two bolts (11) are threadedly connected to the inside of the bottom cover (17), and the bolts (11) are threadedly connected to the inside of the valve body (1), a fourth gasket (27) is fixedly connected between the bottom cover (17) and the valve body (1), and an adjustment gasket (18) is fixedly connected between the top of the bottom cover (17) and the bottom of the valve core (2).

5. The eccentric rotation valve according to claim 1, characterized in that: A pressing assembly is provided inside the valve body (1), and the pressing assembly includes a stuffing box (13) fixedly connected to the inside of the valve body (1), a second bearing (22) fixedly connected to the inside of the stuffing box (13), a thrust pad (12) fixedly connected to the inside of the stuffing box (13), the bottom of the thrust pad (12) is fixedly connected to the top of the valve core (2), a stuffing pad (14) fixedly connected to the inside of the stuffing box (13), a stuffing sleeve (15) fixedly connected to the inside of the stuffing box (13), and a stuffing (23) filled between the stuffing pad (14) and the stuffing sleeve (15). The top of the packing sleeve (15) is in contact with a packing pressure plate (16), a stud (24) is threadedly connected between the packing pressure plate (16) and the stuffing box (13), a disc spring (28) is fixedly connected between the bottom of the stud (24) and the top of the packing pressure plate (16), a nut (25) is threadedly connected to the outside of the stud (24), two studs (24) and two nuts (25) are provided, and the stuffing box (13), the packing gasket (14), the packing sleeve (15), the second bearing (22) and the packing pressure plate (16) are all penetrated by the valve stem (19) and slidably connected.

6. The eccentric rotation valve according to claim 3, characterized in that: The interior of the bearing box (6) is threadedly connected to the second stud (24), the exterior of the second stud (24) is threadedly connected to the second nut (25), the exterior of the second stud (24) is threadedly connected to the interior of the stuffing box (13), and a second gasket (21) is fixedly connected between the stuffing box (13) and the bearing box (6).

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