Anti-abrasion ball valve
Technical Field
The utility model relates to the field of ball valves, in particular to an anti-abrasion ball valve.
Background
Present ball valve mainly includes valve body, disk seat, spheroid and valve rod, and the valve body inner chamber is arranged in to the spheroid, is equipped with in the spheroid can with the communicating runner of valve body inner chamber, and the disk seat is made by non-metallic plastic material, can form sealedly with spheroid surface, and the spheroid is driven by the valve rod and is made 90 degrees rotary motion around the ball valve axis, is used for fluidic opening and closing with the disk seat cooperation, but the shortcoming of current ball valve lies in: in the process of opening and closing the ball body, the ball body is in clearance fit with the valve body for ensuring the sealing performance, so that the surface of the ball body is abraded due to friction with the valve body, the valve is easy to leak after the ball body is abraded, and the service life is shortened.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an anti-abrasion ball valve, which reduces the friction between the surface of a ball body and a valve body through the repulsive force of magnetic force to prevent abrasion when the ball body rotates.
In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides an abrasionproof decreases ball valve, includes valve body, disk seat, spheroid, disk seat and valve rod, the spheroid includes fluid passage and is located the lateral wall of fluid passage both sides, the lateral wall of both sides all is equipped with first magnetic path, one side of first magnetic path be equipped with the second magnetic path, the valve body all is equipped with the recess at the both sides inner wall of spheroidal position, elastic connection has the closing plate in the recess, the outer fringe shape looks adaptation and the inseparable laminating of closing plate lateral wall, the closing plate is equipped with the third magnetic path of inhaling with first magnetic path heteropolar mutually towards spheroidal one side, the third magnetic path can repel each other with the homopolar second magnetic path.
By adopting the technical scheme, when the valve body is to be opened in a closed state, the sealing plate is elastically attached to two ends of the fluid channel to keep the sealing performance, the ball body is rotated, the first magnetic block and the second magnetic block on the side wall rotate simultaneously, the second magnetic block is close to the third magnetic block relative to the first magnetic block and moves towards the third magnetic block, the third magnetic block is pushed away through the magnetic force with homopolar repulsion, the sealing plate is pushed away, the abrasion between the surface of the ball body and the valve body is reduced, when the valve body is rotated to 90 degrees, the first magnetic block and the second magnetic block correspond in position and are mutually adsorbed through the magnetic force with heteropolar attraction, the sealing plate is mutually and tightly attached to the side wall, the sealing performance is further enhanced under the action of the elastic force, when the valve body is opened again, the ball body rotates reversely, the first magnetic block is separated from the third magnetic block, the sealing plate is separated from the side wall, the second magnetic block moves towards the third magnetic block again, and the third magnetic block is pushed away by the magnetic force with the same poles repelling each other, and the sealing plate is pushed away at the same time, so that the abrasion between the surface of the ball body and the valve body is reduced.
As a further optimization of the utility model, a telescopic spring is connected between the bottom of the groove and the sealing plate.
Technical scheme more than adopting, the closing plate supports in the lateral wall through the spring elastically, guarantees the leakproofness, makes the closing plate can elastic expansion simultaneously.
As a further optimization of the utility model, the third magnetic block is embedded in the sealing plate, and the first magnetic block and the second magnetic block are embedded in the side wall.
By adopting the technical scheme, the magnetism of the first magnetic block, the second magnetic block and the third magnetic block is prevented from being lost due to abrasion loss in the using process, and the service life is prolonged.
As a further optimization of the utility model, a sealing ring is arranged on one side of the sealing plate, and the sealing ring is abutted against one side of the valve seat.
By adopting the technical scheme, the sealing plate is abutted to the side wall, and the sealing ring is abutted to one side of the valve seat, so that the sealing performance is further enhanced.
The utility model has the beneficial effects that: when the valve body is closed and the valve body is to be opened, the ball body is rotated, the second magnetic block is close to the third magnetic block and moves towards the third magnetic block, the third magnetic block is pushed away through the magnetic force with the same poles repelling each other, the sealing plate is pushed away at the same time, abrasion between the surface of the ball body and the valve body is reduced, when the valve body is opened again, the ball body rotates reversely, the first magnetic block is separated from the third magnetic block, the sealing plate is separated from the side wall, the second magnetic block moves towards the third magnetic block again, the third magnetic block is pushed away through the magnetic force with the same poles repelling each other, the sealing plate is pushed away at the same time, and abrasion between the surface of the ball body and the valve body is reduced.
Drawings
FIG. 1 is a schematic front cross-sectional view of the present invention;
FIG. 2 is a cross-sectional view of the first embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of the present invention.
The reference numbers in the figures mean: 11. a valve body; 111. a groove; 12. a valve seat; 13. a sphere; 131. a fluid channel; 14. a valve stem; 2. a side wall; 31. a first magnetic block; 32. a second magnetic block; 33. a third magnetic block; 4. a sealing plate; 41. a seal ring; 5. a telescoping spring.
Detailed Description
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Referring to fig. 1-3, the presently disclosed embodiment of the present invention is further configured to: an anti-abrasion ball valve comprises a valve body 11, a valve seat 12, a ball body 13, the valve seat 12 and a valve rod 14, wherein the ball body 13 comprises a fluid channel 131 and side walls 2 positioned at two sides of the fluid channel 131, a first magnetic block 31 is embedded in the side walls 2 at the two sides, and a second magnetic block 32 is embedded at one side of the first magnetic block 31;
the inner walls of the valve body 11 at two sides of the position of the sphere 13 are both provided with grooves 111, a telescopic spring 5 is connected between the bottom of the groove 111 and a sealing plate 4, the sealing plate 4 is matched with the outer edge of the side wall 2 of the sphere 13 in shape and is tightly attached to the outer edge of the side wall 2 of the sphere 13, one side of the sealing plate 4, facing the sphere 13, is provided with a third magnetic block 33 which is attracted with the first magnetic block 31 in a heteropolar manner, and the third magnetic block 33 and the second magnetic block 32 can repel in the same polarity; the sealing plate 4 is further provided with a sealing ring 41 facing one side, and the sealing ring 41 is abutted against one side of the valve seat 12.
The principle of the utility model is as follows: as shown in fig. 2, when the valve body 11 is to be opened in a closed state of the valve body 11, the sealing plate 4 is elastically attached to two ends of the fluid channel 131 through the expansion spring 5, the sealing ring 41 on the outer side of one side of the sealing plate 4 facing the side wall 2 abuts against one side of the valve seat 12 to maintain the sealing performance, at this time, the ball 13 is rotated, the first magnetic block 31 and the second magnetic block 32 on the side wall 2 rotate simultaneously, the second magnetic block 32 moves close to the third magnetic block 33 and faces the third magnetic block 33 relative to the first magnetic block 31, the third magnetic block 33 is pushed away through the magnetic force of the same poles repelling each other, and the sealing plate 4 is pushed away at the same time, so that the abrasion between the surface of the ball 13 and the valve body 11 is reduced; as shown in fig. 3, after the valve body 11 is rotated to 90 degrees, the first magnetic block 31 and the second magnetic block 32 are in a corresponding position and are attracted to each other by the magnetic force of opposite poles, so that the sealing plate 4 and the side wall 2 are tightly attached to each other, meanwhile, the sealing performance is further enhanced by the elastic force of the extension spring 5, when the valve body 11 is opened again, the ball 13 rotates in the opposite direction, the first magnetic block 33 is separated from the third magnetic block 33, the sealing plate 4 is separated from the side wall 2, the second magnetic block 32 moves towards the third magnetic block 33 again, the third magnetic block 33 is pushed away by the magnetic force of opposite poles, and the sealing plate 4 is pushed away, so that the abrasion between the surface of the ball 13 and the valve body 11 is reduced.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and those modifications and variations assumed in the above are also considered to be within the protective scope of the present invention.