CN210949980U - Novel ball valve system - Google Patents

Abstract

The utility model discloses a novel ball valve system, be equipped with the portion of cup jointing that supplies the valve rod to wear to establish on the valve body, cup joint and have the packing chamber in the portion, the valve rod wears to establish and extends to outside the portion of cup jointing after the packing chamber, screw-thread fit has the sealed lid that is used for sealed packing chamber in the portion of cup jointing, sealed covering is connected with the pressure block, the cover is equipped with the clamp plate on the valve rod, the clamp plate is connected with the pressure block, one of valve rod proximity valve ball is served and is equipped with annular round platform, be equipped with the sealing ring on the annular round platform, be equipped with on the inner wall of valve body and supply the sealing ring to inlay the ring channel of establishing, be equipped with fixed spline between left side takeover, right side takeover and the disk seat, and the junction of left side takeover, right side takeover and disk. After improvement, the sealing performance of the valve is improved.

Description

Novel ball valve system

Technical Field

The utility model relates to the technical field of valves, more specifically say, it relates to a novel ball valve system.

Background

The ball valve, the opening and closing piece (ball) is driven by the valve rod and rotates around the axis of the ball valve. The hard seal V-shaped ball valve can also be used for regulating and controlling fluid, wherein a V-shaped ball core of the hard seal V-shaped ball valve and a metal valve seat of the build-up welding hard alloy have strong shearing force, and the hard seal V-shaped ball valve is particularly suitable for media containing fibers, tiny solid particles and the like. The multi-way ball valve can flexibly control the confluence, the diversion and the switching of the flow direction of the medium on the pipeline, and can close any channel to connect the other two channels. The valve of this type should be generally installed horizontally in the pipeline. The ball valve is divided into: pneumatic ball valves, electric ball valves, manual ball valves.

The sealing performance of the ball valve is most critical during use. In the working process, the sealing position of the valve ball and the valve seat and the sealing position of the valve rod and the valve body are the parts which are most prone to leakage, so that the structures of the two parts are improved, and the problem of improving the sealing performance is the more critical problem to be solved.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a novel ball valve system that sealing performance is good.

In order to achieve the above purpose, the utility model provides a following technical scheme: a novel ball valve system comprises a valve body, wherein the valve body is divided into a middle cavity part, a left connecting pipe and a right connecting pipe which are positioned on two sides of the middle cavity part, a valve ball with a drainage channel is arranged in the middle cavity part, a valve rod is connected onto the valve ball, the valve rod extends out of the valve body, a water inlet channel communicated with the drainage channel is arranged in the left connecting pipe, a water outlet channel communicated with the drainage channel is arranged in the right connecting pipe, valve seats are respectively arranged between the left connecting pipe and the middle cavity part and between the right connecting pipe and the middle cavity part, a sleeving part for the valve rod to penetrate is arranged on the valve body, a packing cavity is arranged in the sleeving part, the valve rod extends out of the sleeving part after penetrating through the packing cavity, a sealing cover for sealing the packing cavity is arranged on the sleeving part in a threaded fit manner, a pressing block is connected onto the sealing cover, a pressing plate is sleeved on the valve rod, the pressing plate is connected with the pressing, be equipped with the sealing ring on the annular round platform, be equipped with on the inner wall of valve body and supply the sealing ring to inlay the ring channel of establishing, be equipped with fixed spline between left side takeover, right side takeover and the disk seat, and the junction of left side takeover, right side takeover and disk seat is formed with movable chamber, the movable chamber is equipped with the driving piece, the driving piece orders about disk seat and the valve ball and closely laminates.

The utility model discloses further set up to: the driving piece comprises a sleeve with elasticity and a spring located in the sleeve, one end of the sleeve is fixed on the valve body, the other end of the sleeve is fixed on the valve seat, and a boss for assembling the spring is arranged on the valve body.

The utility model discloses further set up to: the left connecting pipe is internally provided with a filter screen which is positioned in the water inlet channel and is in rotating fit with the water inlet channel, the filter screen is connected with a rotating shaft, and the rotating shaft extends out of the left connecting pipe.

Through adopting above-mentioned technical scheme, add the portion of cup jointing in the junction of valve rod and valve body, can be through the filler in the portion of cup jointing, carry out the clearance seal between valve rod and the valve body, avoid unloading, still add annular round platform and sealing ring simultaneously on the valve rod, further promote the sealing performance between valve rod and the valve body. The driving part is additionally arranged at the valve body and the valve seat, the driving part can drive the valve seat to be tightly attached to the valve ball, and the tightness of the sealing surface of the valve seat and the valve ball is higher. Meanwhile, the fixed spline is additionally arranged, so that the situation that the left connecting pipe or the right connecting pipe is connected with a water pipe to rotate, the valve seat is driven to rotate, and the sealing performance of the valve seat and the valve ball is weakened is effectively avoided.

Drawings

FIG. 1 is a sectional view of the present invention;

FIG. 2 is an enlarged view of a portion a of FIG. 1;

FIG. 3 is a schematic structural view of a fixed spline;

fig. 4 is a partial structural sectional view of the left adapter tube.

1. A valve body; 10. a middle chamber part; 11. a left adapter tube; 12. a right connection pipe; 13. a water inlet channel; 14. a water outlet channel; 15. an annular groove; 16. a boss; 17. filtering with a screen; 18. a rotating shaft; 2. a valve ball; 3. a valve stem; 30. an annular circular truncated cone; 31. a seal ring; 4. a valve seat; 40. a movable cavity; 5. a socket joint part; 50. a packing cavity; 51. a sealing cover; 52. a pressing block; 53. pressing a plate; 6. fixing the spline; 7. a drive member; 70. a sleeve; 71. a spring.

Detailed Description

Embodiments of the present invention are further described with reference to fig. 1 to 4.

A novel ball valve system comprises a valve body 1, wherein the valve body 1 is divided into a middle cavity part 10, a left connecting pipe 11 and a right connecting pipe 12 which are positioned at two sides of the middle cavity part 10, a valve ball 2 with a drainage channel is arranged in the middle cavity part 10, a valve rod 3 is connected on the valve ball 2, the valve rod 3 extends out of the valve body 1, a water inlet channel 13 communicated with the drainage channel is arranged in the left connecting pipe 11, a water outlet channel 14 communicated with the drainage channel is arranged in the right connecting pipe 12, valve seats 4 are arranged between the left connecting pipe 11 and the middle cavity part 10 and between the right connecting pipe 12 and the middle cavity part 10, a sleeving part 5 for the valve rod 3 to penetrate is arranged on the valve body 1, a packing cavity 50 is arranged in the sleeving part 5, the valve rod 3 extends out of the sleeving part 5 after penetrating through the packing cavity 50, a sealing cover 51 for sealing the packing cavity 50 is matched with threads on the sleeving part 5, and a pressing block 52 is connected on the sealing cover, the cover is equipped with clamp plate 53 on the valve rod 3, clamp plate 53 is connected with support block 52, valve rod 3 is close to one of valve ball 2 and serves and be equipped with annular round platform 30, be equipped with sealing ring 31 on the annular round platform 30, be equipped with on the inner wall of valve body 1 and supply sealing ring 31 to inlay the ring channel 15 of establishing, be equipped with fixed spline 6 between taking over 11, the right side and taking over 12 and the disk seat 4 on a left side, and the junction of taking over 11, the right side and taking over 12 and disk seat 4 on a left side is formed with movable chamber 40, be equipped with driving piece 7 in the movable chamber 40, driving piece 7 orders about disk seat 4 and.

The portion of cup jointing 5 and valve body 1 set up as an organic whole structure, and the packing chamber 50 intussuseption of the portion of cup jointing 5 is filled with the material, and the material can promote valve rod 3 and the sealing performance between the portion of cup jointing 5, has the effect of promoting the sealing performance between valve body 1 and valve rod 3 simultaneously. When the valve rod 3 is operated to close or open the valve ball 2, the packing can be abraded and reduced, the sealing cover 51 can be screwed, the sealing cover 51 drives the pressing block 52 to move towards the direction of the valve ball 2, the pressing block 52 drives the pressing plate 53 to move, the pressing plate 53 moves downwards along the valve rod 3 to play a role in pressing the packing, the packing cavity 50 which is abraded and reduces materials can still keep a sealing effect, and the sealing performance between the valve rod 3 and the valve body 1 is kept. The end of the valve rod 3 close to the valve ball 2 is also provided with an annular round platform 30 and a sealing ring 31, the annular round platform 30 and the sealing ring 31 play a role in sealing the joint of the valve body 1 and the sleeve joint part 5, and the sealing performance of the valve rod 3 can be further improved during operation.

The driving member 7 comprises a sleeve 70 with elasticity and a spring 71 positioned in the sleeve 70, one end of the sleeve 70 is fixed on the valve body 1, the other end of the sleeve 70 is fixed on the valve seat 4, and a boss 16 for assembling the spring 71 is arranged on the valve body 1. The driving piece 7 can drive the valve seat 4 to be tightly attached to the valve ball 2, and has the function of improving the sealing performance of the valve seat 4 and the valve ball 2. The driving member 7 includes a spring 71 and a sleeve 70, the sleeve 70 plays a role of protecting the spring 71 from being damaged by interference of a medium, and the sleeve 70 has elasticity and can play a role of assisting the spring 71 to contract or expand.

The left connecting pipe 11 and the right connecting pipe 12 need to be connected with a water pipe, and under the condition of large medium impact, the twisting of the water pipe can harden the rotation of the left connecting pipe 11 or the right connecting pipe 12, so that the valve seat 4 can be driven to rotate, and the sealing performance of the valve seat 4 and the valve ball 2 is influenced. The arrangement of the fixed spline 6 can avoid the valve seat 4 from rotating together with the left connecting pipe 11 and the right connecting pipe 12, and avoid the leakage of the whole valve.

Be equipped with filter screen 17 in the left side is taken over 11, filter screen 17 is located inhalant canal 13 normal running fit, be connected with pivot 18 on the filter screen 17, pivot 18 extends to and takes over 11 outward to a left side. The outer periphery of the filter screen 17 is abutted against the inner wall of the water inlet channel 13, and the function of intercepting impurities in the medium can be achieved. When the filter medium is not needed, the filter screen 17 can be rotated through the rotating shaft 18, and the water inlet channel 13 is in an open state, so that the operation is convenient and fast. Therefore, impurities can be prevented from entering the sealing surfaces of the valve seat 4 and the valve ball 2 to cause the damage of the sealing performance of the valve seat 4 and the valve ball 2.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (3)

1. The utility model provides a novel ball valve system, includes the valve body, the valve body divide into middle cavity portion and the left side that is located middle cavity portion both sides is taken over, is taken over on the right side, the built-in valve ball that has drainage channel of middle cavity portion, connect the valve rod on the valve ball, the valve rod extends to outside the valve body, be equipped with the inlet channel who is linked together with drainage channel in the left side is taken over, be equipped with the exhalant canal that is linked together with drainage channel in the right side is taken over, between the middle cavity portion, the right side is taken over and is all equipped with disk seat, its characterized in that between the middle cavity portion: be equipped with the portion of cup jointing that supplies the valve rod to wear to establish on the valve body, the chamber of packing has in the portion of cup jointing, the valve rod is worn to establish and is extended to outside the portion of cup jointing after the chamber of packing, screw-thread fit has the sealed lid that is used for sealing the chamber of packing in the portion of cup jointing, be connected with the briquetting on the sealed lid, the cover is equipped with the clamp plate on the valve rod, the clamp plate is connected with the briquetting, the valve rod is close to one of valve ball and serves and be equipped with annular round platform, be equipped with the sealing ring on the annular round platform, be equipped with on the inner wall of valve body and supply the sealing ring to inlay the ring channel of establishing, be equipped with fixed spline between left side takeover, right takeover and the disk seat, and the junction of left side.

2. The novel ball valve system of claim 1, wherein: the driving piece comprises a sleeve with elasticity and a spring located in the sleeve, one end of the sleeve is fixed on the valve body, the other end of the sleeve is fixed on the valve seat, and a boss for assembling the spring is arranged on the valve body.

3. The novel ball valve system of claim 2, wherein: the left connecting pipe is internally provided with a filter screen which is positioned in the water inlet channel and is in rotating fit with the water inlet channel, the filter screen is connected with a rotating shaft, and the rotating shaft extends out of the left connecting pipe.

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