CN210510350U

CN210510350U - Ball valve sealing device with fixed ball body

Info

Publication number: CN210510350U
Application number: CN201921071709.5U
Authority: CN
Inventors: 杨振瓯
Original assignee: Kunshan Dewiworkang Machinery Co Ltd
Current assignee: Kunshan Dewiworkang Machinery Co Ltd
Priority date: 2019-07-10
Filing date: 2019-07-10
Publication date: 2020-05-12
Anticipated expiration: 2029-07-10

Abstract

The utility model discloses a fixed ball valve sealing device of spheroid relates to ball valve technical field, can adopt spring shock attenuation or reduce frictional force for the sealing device who solves current ball valve usually, but the spring is the point contact with sealing device, and fluid pressure can be followed each face and is exerted pressure, so the unsatisfactory problem of shock attenuation effect. The improved valve is characterized in that flange connecting ends are arranged at two ends of the valve body, a valve core is arranged inside the valve body, a valve rod seat is arranged on the upper surface of the valve core, annular protruding strips are arranged on the outer wall of the valve core, two annular protruding strips are arranged on the two sides of the valve core, valve seats are arranged on the two sides of the valve core, sliding grooves are formed in the valve seats, wear-resistant paint is arranged on the inner wall of each valve seat, an elastic rubber ring is arranged on one side of each valve seat, and a metal fixing outer ring is arranged on the outer wall.

Description

Ball valve sealing device with fixed ball body

Technical Field

The utility model relates to a ball valve technical field specifically is a fixed ball valve sealing device of spheroid.

Background

The opening and closing piece of the ball valve 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 ball valve is mainly used for cutting off, distributing and changing the flow direction of a medium in a pipeline, can be closed tightly only by rotating ninety degrees and a small rotating moment, and is most suitable for being used as a switch and a cut-off valve.

However, the sealing device of the existing ball valve usually adopts a spring to absorb shock or reduce friction force, but the spring and the sealing device are in point contact, and fluid pressure can apply pressure from all surfaces, so the shock absorption effect is not ideal; thus, the present need is not met, and a ball-seated ball valve seal has been proposed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a ball valve sealing device that the spheroid is fixed to the sealing device who solves the current ball valve that proposes in the above-mentioned background art can adopt spring shock attenuation or reduce frictional force usually, but spring and sealing device are the point contact, and fluid pressure can be exerted pressure from each face, so the unsatisfactory problem of shock attenuation effect.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a fixed ball valve sealing device of spheroid, includes the valve body, the both ends of valve body all are provided with the flange joint end, the internally mounted of valve body has the case, the upper surface of case is provided with the valve rod seat, be provided with annular sand grip on the outer wall of case, and annular sand grip is provided with two, the disk seat is all installed to the both sides of case, the inside of disk seat is provided with the spout, be provided with wear-resistant coating on the inner wall of disk seat, one side of disk seat is provided with the elastic rubber circle, be provided with the fixed outer lane of metal on the outer wall of elastic rubber circle.

Preferably, a valve rod is installed above the valve rod seat, and the valve rod is fixedly connected with the valve core through the valve rod seat.

Preferably, the valve core is in sliding connection with a sliding groove in the valve seat through an annular protruding strip.

Preferably, the outer wall of the valve seat is provided with a double-lip sealing ring, the double-lip sealing ring is in interference fit with the valve seat, and the outer wall of the double-lip sealing ring is provided with a lip groove.

Preferably, the metal fixing outer ring is in threaded connection with the valve body through screws, and the number of the screws is four.

Preferably, a material channel is arranged inside the valve core.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a set up the elastic rubber circle, the elastic rubber circle is located one side of disk seat, when the case rotates oppression disk seat, the elastic rubber circle can drive the disk seat because of its self elastic potential energy's reason and contract to reduce the frictional force between disk seat and case, and play vibration/noise reduction's effect, compare traditional spring shock attenuation, the effective area of elastic rubber circle is a face, and the atress is more even, so can reach better shock attenuation effect.

2. Through set up annular sand grip on the outer wall at the case, annular sand grip can slide with the inside spout of disk seat, plays the effect of direction when the case is rotatory, stability when improving the case and rotating makes the case inseparabler with being connected of disk seat.

3. Through setting up the two lip sealing washers and sealing, compare conventional sealing washer, the two lip structure can play better sealed effect, and has certain crushing resistance, can unload partial pressure through the lip groove when receiving pressure.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic side view of the valve core of the present invention;

FIG. 3 is a schematic view of a partial structure of the elastic rubber ring of the present invention;

FIG. 4 is a partial enlarged view of the point A of the present invention;

in the figure: 1. a valve body; 2. a flange connection end; 3. a valve core; 301. a material channel; 302. a valve stem seat; 4. a valve stem; 5. an annular rib; 6. a valve seat; 601. a chute; 602. wear-resistant paint; 7. a double-lip seal ring; 8. a lip groove; 9. an elastic rubber ring; 10. a metal fixed outer ring; 11. and (4) screws.

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.

Referring to fig. 1-4, the present invention provides an embodiment: the utility model provides a fixed ball valve sealing device of spheroid, including valve body 1, the both ends of valve body 1 all are provided with flange joint end 2, flange joint end 2 is used for with the pipe connection, the internally mounted of valve body 1 has case 3, case 3 can the opening and closing of control flap, the upper surface of case 3 is provided with valve stem base 302, valve stem base 302 has played the effect of fixed valve rod 4, be provided with annular sand grip 5 on case 3's the outer wall, and annular sand grip 5 is provided with two, annular sand grip 5 can guide case 3 rotatory, disk seat 6 has all been installed to case 3's both sides, disk seat 6 has played the effect of fixed case 3, the inside of disk seat 6 is provided with spout 601, be provided with wear-resistant coating 602 on the inner wall of disk seat 6, one side of disk seat 6 is provided with elastic rubber circle 9, be provided with metal fixed outer lane 10 on.

Further, valve rod 4 is installed to the top of valve rod seat 302, and valve rod 4 passes through valve rod seat 302 and case 3 fixed connection, can drive case 3 rotation through hand wheel rotation valve rod 4, reaches switch valve's effect.

Further, the valve core 3 is slidably connected with the sliding groove 601 in the valve seat 6 through the annular protruding strip 5, and the two annular protruding strips 5 are arranged, so that the valve core 3 can play a role in guiding when rotating, and the stability during rotation is improved.

Further, install two lip sealing rings 7 on the outer wall of disk seat 6, and two lip sealing rings 7 and disk seat 6 interference fit are provided with lip groove 8 on the outer wall of two lip sealing rings 7, and two lip sealing rings 7 compare with conventional sealing ring, and the leakproofness is better, and has certain resistance to compression, can unload partial pressure through lip groove 8 when receiving pressure.

Further, the metal fixing outer ring 10 is in threaded connection with the valve body 1 through the screws 11, the screws 11 are four, and the elastic rubber ring 9 inside the metal fixing outer ring 10 is fixed with the metal fixing outer ring through the clamping groove, so that the damping effect can be achieved.

Further, the valve core 3 is provided with a material channel 301 inside, the valve core 3 is rotated, when the material channel 301 inside the valve core 3 is communicated with the internal flow channel of the valve body 1, the valve core is in an open state, and when the material channel 301 is staggered with the internal flow channel of the valve body 1, the valve core is in a closed state.

The working principle is as follows: during the use, install valve body 1 on the pipeline through flange joint end 2, during the use, it is rotatory to rotate valve rod 4 and drive case 3, because of be provided with annular sand grip 5 on case 3 outer wall, can slide with spout 601 in the disk seat 6, so stability is good, when the inside material passageway 301 of case 3 and the inside runner intercommunication of valve body 1, then for the open mode, when material passageway 301 and the inside runner dislocation of valve body 1, then for the closed mode, when rotating, be provided with elastic rubber circle 9 because of one side of disk seat 6, when case 3 and disk seat 6 contact, disk seat 6 can carry out the recoil because of elastic rubber circle 9's elastic action, thereby play the shock attenuation and reduce the effect of friction.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a fixed ball valve sealing device of spheroid, includes valve body (1), its characterized in that: the improved valve is characterized in that flange connecting ends (2) are arranged at two ends of the valve body (1), a valve core (3) is arranged inside the valve body (1), a valve rod seat (302) is arranged on the upper surface of the valve core (3), an annular raised line (5) is arranged on the outer wall of the valve core (3), two annular raised lines (5) are arranged, valve seats (6) are arranged on two sides of the valve core (3), a sliding groove (601) is formed in the inner portion of each valve seat (6), wear-resistant paint (602) is arranged on the inner wall of each valve seat (6), an elastic rubber ring (9) is arranged on one side of each valve seat (6), and a metal fixing outer ring (10) is arranged on the outer wall of each elastic rubber ring.

2. A ball-seated ball valve seal according to claim 1, wherein: and a valve rod (4) is arranged above the valve rod seat (302), and the valve rod (4) is fixedly connected with the valve core (3) through the valve rod seat (302).

3. A ball-seated ball valve seal according to claim 1, wherein: the valve core (3) is connected with a sliding groove (601) in the valve seat (6) in a sliding mode through the annular convex strip (5).

4. A ball-seated ball valve seal according to claim 1, wherein: install two lip sealing washer (7) on the outer wall of disk seat (6), and two lip sealing washer (7) and disk seat (6) interference fit, be provided with lip groove (8) on the outer wall of two lip sealing washer (7).

5. A ball-seated ball valve seal according to claim 1, wherein: the metal fixing outer ring (10) is in threaded connection with the valve body (1) through screws (11), and the number of the screws (11) is four.

6. A ball-seated ball valve seal according to claim 1, wherein: and a material channel (301) is arranged in the valve core (3).