CN212899896U

CN212899896U - Wear-resistant reversing valve capable of cleaning pipe

Info

Publication number: CN212899896U
Application number: CN202021457434.1U
Authority: CN
Inventors: 姚伟; 黄健; 佘恩亮
Original assignee: Sichuan Saier Valve Mfg Co ltd
Current assignee: Sichuan Saier Valve Mfg Co ltd
Priority date: 2020-07-22
Filing date: 2020-07-22
Publication date: 2021-04-06
Anticipated expiration: 2030-07-22

Abstract

The utility model discloses a but wear-resisting switching-over valve of dredging pipe, including valve body, spheroid, bottom, valve gap, gland, the inside spheroid that is provided with of valve body, spheroid right side below is provided with the plug screw, the valve body bottom is provided with a bottom, the bottom top is provided with footstep bearing, the footstep bearing side is provided with slide bearing down, spheroid left side bottom is provided with a disk seat, the disk seat top is provided with down packs and second O type circle, it is provided with a flange to pack the left side down, be provided with the flange gasket between flange and the disk seat, and be provided with down tight set nut and tight set double-screw bolt down, flange gasket top is provided with third O type circle, it is provided with a coil spring to pack the top down, valve body central line top is provided with a valve rod. The utility model discloses in, spheroid extexine and runner surface are provided with super wear-resisting layer of spraying welding, can make the valve life-span double.

Description

Wear-resistant reversing valve capable of cleaning pipe

Technical Field

The utility model relates to a switching-over valve field especially relates to a but wear-resisting switching-over valve of dredging pipe.

Background

The reversing valve is a directional control valve with more than two flow forms and more than two oil ports. The valve realizes communication, cutting off and reversing of hydraulic oil flow, pressure unloading and sequential action control; the valve is controlled by the relative movement direction of the valve core and the valve body, and the valve has a rotary valve type and a slide valve type; the valve core is divided into two positions, three positions and the like according to the number of the working positions of the valve core staying in the valve body; the oil way connected with the valve body is divided into a two-way, a three-way, a four-way, a six-way and the like; the movement modes of the operation valve core are manual, motor, electric, hydraulic, electrohydraulic and the like.

The common reversing valve often causes the damage of a sealing ring due to large movement resistance and poor wear resistance, thereby causing the working failure of the reversing valve.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a wear-resistant reversing valve capable of cleaning pipes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a wear-resistant reversing valve capable of cleaning pipes comprises a valve body, a ball body, a lower bottom cover, a valve cover and a gland, wherein the ball body is arranged in the valve body, a screw plug is arranged at the lower right side of the ball body, the lower bottom cover is arranged at the bottom of the valve body, a lower thrust bearing is arranged above the lower bottom cover, a sliding bearing is arranged on the side surface of the lower thrust bearing, a valve seat is arranged at the bottom of the left side of the ball body, a lower filler and a second O-shaped ring are arranged above the valve seat, a flange is arranged at the left side of the lower filler, a flange gasket is arranged between the flange and the valve seat and provided with a lower fastening nut and a lower fastening stud, a third O-shaped ring is arranged above the flange gasket, a spiral spring is arranged above the lower filler, a valve rod is arranged above the central line, an upper push bearing is arranged above the upper sliding bearing, a valve cover is arranged at the top of the upper push bearing, a valve cover gasket, a fifth O-shaped ring and an upper filler are arranged below the valve cover, an upper inner hexagon screw is arranged in the upper filler, a side stud and a side nut are arranged on the left side of the valve cover, a fourth O-shaped ring is arranged on the inner side of the side stud, is fixedly connected with the valve body, the top of the valve cover is provided with a gland, the gland is provided with a side fastening nut and a side fastening stud, a coupling sleeve is arranged at the inner side of the gland, a lower round head common flat key and an elastic cylindrical pin are arranged at the middle part of the coupling sleeve, the top of the gland is fixedly connected with an operator through a connecting nut and a connecting stud, the inner side of the operator is sleeved on the top of the valve rod, and the top of the valve rod is provided with an upper round-head common flat key, and the right side of the operator is provided with a support.

As a further description of the above technical solution:

a lower inner hexagon screw is arranged between the lower bottom cover and the valve body, and a bottom cover gasket and a first O-shaped ring are arranged on the inner side of the lower inner hexagon screw.

As a further description of the above technical solution:

and a lifting ring screw is arranged on the right side of the operator.

As a further description of the above technical solution:

and the bracket is provided with an inner hexagonal cylindrical end fastening screw and an upper fastening nut.

As a further description of the above technical solution:

the diameters of the second O-shaped ring, the third O-shaped ring, the fourth O-shaped ring and the fifth O-shaped ring are the same.

As a further description of the above technical solution:

the outer layer of the ball body and the surface of the flow channel are coated with super wear-resistant spray welding materials.

The utility model discloses following beneficial effect has:

1. the utility model discloses well spheroidal skin is wrapped up by super wear-resisting spray welding material, and all runner surfaces all have super wear-resisting spray welding layer simultaneously, can protect the valve body not receive the slurry grinding well, can make the life-span doubling of valve.

2. The utility model discloses in can wash the valve inner tube way through the dismouting, reduced the flow resistance in the valve, make the fluid not block when flowing in the valve, no blocking phenomenon.

Drawings

Fig. 1 is a front view of a wear-resistant reversing valve capable of cleaning pipes according to the present invention;

fig. 2 is a top view of a wear-resistant reversing valve capable of cleaning pipes according to the present invention;

fig. 3 is a schematic structural view of an operator of a wear-resistant reversing valve capable of cleaning pipes according to the present invention.

Illustration of the drawings:

1. a plug screw; 2. a valve body; 3. a sphere; 4. a bottom cover is arranged; 5. a lower socket head cap screw; 6. a bottom cap gasket; 7. a first O-ring; 8. a lower slide bearing; 9. a lower thrust bearing; 10. a valve seat; 11. lower filling; 12. a second O-ring; 13. a flange gasket; 14. a lower fastening nut; 15. a lower fastening stud; 16. A flange; 17. a third O-ring; 18. a coil spring; 19. an upper slide bearing; 20. a valve stem; 21. An upper thrust bearing; 22. a fourth O-ring; 23. a bonnet gasket; 24. a valve cover; 25. a side stud; 26. A side nut; 27. a lifting eye screw; 28. a fifth O-ring; 29. filling; 30. a gland; 31. an upper inner hexagon screw; 32. a coupling sleeve; 33. a lower round head common flat key; 34. an elastic cylindrical pin; 35. a connecting nut; 36. connecting a stud; 37. an operator; 38. a round head common flat key is arranged; 39. a support; 40. A set screw is fastened at the end of the inner hexagonal cylinder; 41. a set nut is fastened; 42. laterally tightening the nut; 43. and laterally fastening the stud.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the present invention provides an embodiment: a wear-resistant reversing valve capable of cleaning a pipe comprises a valve body 2, a ball body 3, a lower bottom cover 4, a valve cover 24 and a gland 30, wherein the ball body 3 is arranged in the valve body 2, a screw plug 1 is arranged at the lower right side of the ball body 3, a lower bottom cover 4 is arranged at the bottom of the valve body 2, a lower thrust bearing 9 is arranged above the lower bottom cover 4, a lower sliding bearing 8 is arranged on the side surface of the lower thrust bearing 9, a valve seat 10 is arranged at the bottom of the left side of the ball body 3, a lower packing 11 and a second O-shaped ring 12 are arranged above the valve seat 10, a flange 16 is arranged at the left side of the lower packing 11, a flange gasket 13 is arranged between the flange 16 and the valve seat 10, a lower fastening nut 14 and a lower fastening stud 15 are arranged, a third O-shaped ring 17 is arranged above the flange gasket 13, a spiral spring 18 is arranged above the central line, an upper push bearing 21 is arranged above the upper sliding bearing 19, a valve cover 24 is arranged at the top of the upper push bearing 21, a valve cover gasket 23, a fifth O-shaped ring 28 and an upper packing 29 are arranged below the valve cover 24, an upper hexagon socket head cap screw 31 is arranged in the upper packing 29, a side stud 25 and a side nut 26 are arranged at the left side of the valve cover 24, a fourth O-shaped ring 22 is arranged at the inner side of the side stud 25, the valve body 2 is fixedly connected, the top of the valve cover 24 is provided with a gland 30, the gland 30 is provided with a side fastening nut 42 and a side fastening stud 43, the inner side of the gland 30 is provided with a coupling sleeve 32, the middle part of the coupling sleeve 32 is provided with a round head common flat key 33 and an elastic cylindrical pin 34, the top of the gland 30 is fixedly connected with an operator 37 through a connecting nut 35 and a connecting stud 36, the inner side of the operator 37 is sleeved on the top of the valve rod 20, and the top of the valve rod 20 is provided with an upper round head common flat key 38, and the right side of the operator 37 is provided with a bracket 39.

A lower hexagon socket head cap screw 5 is arranged between the lower bottom cap 4 and the valve body 2, a bottom cap gasket 6 and a first O-shaped ring 7 are arranged on the inner side of the lower hexagon socket head cap screw 5, a lifting ring screw 27 is arranged on the right side of the operating device 37, an inner hexagon cylindrical end fastening screw 40 and an upper fastening nut 41 are arranged on the support 39, the diameters of the first O-shaped ring 7, the second O-shaped ring 12, the third O-shaped ring 17, the fourth O-shaped ring 22 and the fifth O-shaped ring 28 are the same, and the outer layer of the ball body 3 and the surface of the flow channel are wrapped by super-wear-resistant.

The working principle is as follows:

1. when fluid flows in the reversing valve, because the surfaces of the ball body and the flow channel are both provided with the super-wear-resistant spray welding layers, the valve body is well protected from being ground by the fluid, the abrasion of the valve body is reduced, and the service life of the reversing valve is prolonged.

2. When the internal flow passage of the reversing valve needs to be cleaned, the bottom cover can be detached, the valve body is opened, and the ball body and the flow passage can be directly cleaned after the lower sliding bearing and the lower thrust bearing are detached.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a but wear-resisting switching-over valve of pigging, includes valve body (2), spheroid (3), lower bottom (4), valve gap (24), gland (30), its characterized in that: a ball body (3) is arranged in the valve body (2), a plug screw (1) is arranged below the right side of the ball body (3), a lower bottom cover (4) is arranged at the bottom of the valve body (2), a lower thrust bearing (9) is arranged above the lower bottom cover (4), a sliding bearing (8) is arranged on the side surface of the lower thrust bearing (9), a valve seat (10) is arranged at the bottom of the left side of the ball body (3), a lower packing (11) and a second O-shaped ring (12) are arranged above the valve seat (10), a flange (16) is arranged on the left side of the lower packing (11), a flange gasket (13) is arranged between the flange (16) and the valve seat (10), a lower fastening nut (14) and a lower fastening stud (15) are arranged, a third O-shaped ring (17) is arranged above the flange gasket (13), a spiral spring (18) is arranged above the lower, a valve rod (20) is arranged above the central line of the valve body (2), an upper sliding bearing (19) is sleeved at the joint of the joint ball body (3) below the valve rod (20), an upper thrust bearing (21) is arranged above the upper sliding bearing (19), a valve cover (24) is arranged at the top of the upper thrust bearing (21), a valve cover gasket (23), a fifth O-shaped ring (28) and an upper packing (29) are arranged below the valve cover (24), an upper hexagon socket head cap screw (31) is arranged in the upper packing (29), a side stud (25) and a side nut (26) are arranged on the left side of the valve cover (24), a fourth O-shaped ring (22) is arranged on the inner side of the side stud (25) and is fixedly connected with the valve body (2), a gland (30) is arranged at the top of the valve cover (24), a side fastening nut (42) and a side fastening stud (43) are arranged on the gland (30), gland (30) inboard is provided with a shaft coupling sleeve (32), shaft coupling sleeve (32) middle part is provided with ordinary flat key of button head (33) and elasticity cylindric lock (34) once, connecting nut (35), connecting stud (36) fixedly connected with manipulator (37) are passed through at gland (30) top, manipulator (37) inboard cup joints at valve rod (20) top, and valve rod (20) top is provided with ordinary flat key of button head (38), manipulator (37) right side is provided with a support (39).

2. A piggable wear-resistant diverter valve in accordance with claim 1, wherein: a lower inner hexagonal screw (5) is arranged between the lower bottom cover (4) and the valve body (2), and a bottom cover gasket (6) and a first O-shaped ring (7) are arranged on the inner side of the lower inner hexagonal screw (5).

3. A piggable wear-resistant diverter valve in accordance with claim 1, wherein: and a lifting ring screw (27) is arranged on the right side of the operator (37).

4. A piggable wear-resistant diverter valve in accordance with claim 1, wherein: and the bracket (39) is provided with an inner hexagonal cylindrical end fastening screw (40) and an upper fastening nut (41).

5. A piggable wear-resistant diverter valve in accordance with claim 1, wherein: the diameters of the second O-ring (12), the third O-ring (17), the fourth O-ring (22) and the fifth O-ring (28) are the same.

6. A piggable wear-resistant diverter valve in accordance with claim 1, wherein: the outer layer of the ball body (3) and the surface of the flow channel are coated with super wear-resistant spray welding materials.