CN212055952U

CN212055952U - Ball valve with good sealing performance

Info

Publication number: CN212055952U
Application number: CN202020392129.2U
Authority: CN
Inventors: 陈富文
Original assignee: Changzhou Hongsheng Technology Co ltd
Current assignee: Changzhou Hongsheng Technology Co ltd
Priority date: 2020-03-25
Filing date: 2020-03-25
Publication date: 2020-12-01
Anticipated expiration: 2030-03-25

Abstract

The utility model discloses a ball valve with good sealing performance, which comprises a valve body, wherein flange plates are welded at both ends of the valve body, the middle part inside the valve body is rotatably connected with a ball body through a rotating seat, the top part of the ball body is connected with a valve rod, one end of the valve rod extends to the outside of the valve body and is connected with a hand wheel, the inside of the flange plate is connected with a connecting plate through screw threads, one side of the connecting plate is positioned inside the valve body and is provided with a filtering mechanism for filtering water flow sundries, and the inside of the valve body is positioned at both sides of the ball body and is provided with rubber rings, thereby improving the sealing of the device.

Description

Ball valve with good sealing performance

Technical Field

The utility model belongs to the technical field of the ball valve, specifically be a ball valve that sealing performance is good.

Background

The ball valve is driven by the valve rod and rotates around the axis of the ball valve, and the flowing state of a medium can be flexibly controlled.

But the ball valve in the existing market still has the defect when using, for example, traditional ball valve is after repetitious usage, easily produces the gap between spheroid and the valve body, and then leads to the ball valve leakproofness to descend, produces the leakage phenomenon, and in addition, rivers get into behind the valve body, debris such as grit in the rivers easily produce the wearing and tearing phenomenon to the spheroid to lead to the problem that ball valve life descends.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a ball valve that sealing performance is good to solve the problem that proposes among the above-mentioned background art.

The utility model adopts the technical scheme as follows:

the utility model provides a ball valve that sealing performance is good, includes the valve body, the ring flange has all been welded at the both ends of valve body, and the department rotates through rotating the seat in the middle of the inside of valve body and is connected with the spheroid, spheroidal top is connected with the valve rod, the one end of valve rod extends to the outside of valve body and is connected with the hand wheel, there is the connection pad inside through threaded connection of ring flange, one side of connection pad is located the inside of valve body and is provided with the filtering mechanism who is used for filtering rivers debris, the inside of valve body is located spheroidal both sides and all is provided with the rubber ring, the rubber ring is fixed with the go-between for spheroidal one side, the inside both sides that are located the go-between of.

Preferably, the filtering mechanism comprises a blocking cover, the blocking cover is fixed on one side of the connecting disc and is located inside the valve body, and sieve holes used for separating sand and stone particles are formed in the inner wall of the blocking cover.

Preferably, the filter screen is installed to the inside one side that is located the sieve mesh that keeps off the cover, the packing ring has been placed between connection pad and the valve body, the negative pressure groove has been seted up to the outer wall of packing ring.

Preferably, the outside of the shield is provided with grooves in an annular array.

Preferably, hold-down mechanism includes cylindrical groove and ejector pin, the cylindrical groove is seted up in the inside of valve body, the ejector pin welds in one side of go-between, the one end of ejector pin extends to the inside in cylindrical groove and is connected with the connecting block, be provided with the spring between connecting block and the cylindrical groove, the inside in cylindrical groove is located the outside of ejector pin and is fixed with the limit ring.

Preferably, the diameter of the limiting ring is consistent with the inner diameter of the cylindrical groove, and the inner diameter of the limiting ring is consistent with the diameter of the ejector rod.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the utility model discloses in, through the locking mechanism who sets up, during the use, the spring can make connecting block, ejector pin and go-between wholly remove to spheroidal direction in real time to make the rubber ring extrude spheroidal surface all the time, and then avoid producing the gap between rubber ring and the spheroid, thereby improve device's leakproofness.

2. The utility model discloses in, can carry out the separation to debris such as grit in the entering valve body rivers through keeping off the sieve mesh that covers, and then avoid the grit to influence spheroidal life, can be with connection pad and ring flange quickly separating through the screw thread, and then make the staff of being convenient for clear up the debris that keep off in the cover to extension fixture's result of use.

Drawings

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

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

FIG. 3 is a cross-sectional view of the shield of the present invention;

fig. 4 is a side view of the flange of the present invention;

in the figure: 1. a valve body; 2. a sphere; 3. a valve stem; 4. a hand wheel; 5. a groove; 6. a flange plate; 7. a connecting disc; 8. a gasket; 9. a shield; 10. a connecting ring; 11. a rubber ring; 12. connecting blocks; 13. a cylindrical groove; 14. a spring; 15. a top rod; 16. a limiting ring; 17. screening holes; 18. and (5) filtering by using a filter screen.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

Referring to fig. 1-4, a ball valve with good sealing performance comprises a valve body 1, wherein flange plates 6 are welded at two ends of the valve body 1, a ball body 2 is rotatably connected to the middle of the inside of the valve body 1 through a rotating seat, a valve rod 3 is connected to the top of the ball body 2, one end of the valve rod 3 extends to the outside of the valve body 1 and is connected with a hand wheel 4, a connecting disc 7 is connected to the inside of the flange plate 6 through threads, a filtering mechanism for filtering water flow sundries is arranged inside the valve body 1 on one side of the connecting disc 7, rubber rings 11 are arranged on two sides of the ball body 2 inside the valve body 1, a connecting ring 10 is fixed on one side of the rubber rings 11 opposite to the ball body 2, and pressing mechanisms for pressing the rubber rings 11 and the ball body;

the filtering mechanism comprises a blocking cover 9, the blocking cover 9 is fixed on one side of the connecting disc 7, the blocking cover 9 is positioned inside the valve body 1, and sieve holes 17 for blocking sand and stone particles are formed in the inner wall of the blocking cover 9;

a filter screen 18 is arranged on one side of a sieve pore 17 in the baffle cover 9, a gasket 8 is arranged between the connecting disc 7 and the valve body 1, and a negative pressure groove is formed in the outer wall of the gasket 8 so as to further improve the sealing property between the connecting disc 7 and the valve body 1, so that water can completely pass through the baffle cover 9 when entering the valve body 1;

the outside of the blocking cover 9 is provided with grooves 5 in an annular array, and after a tool is inserted into the grooves 5, the convenience degree of the blocking cover 9 during rotation can be improved.

Through the technical scheme:

when the ball valve is used, the valve body 1 is arranged on a pipeline through the flange 6, water flow firstly passes through the blocking cover 9 when entering the valve body 1, then impurities such as sand and stones in the water flow are blocked in the blocking cover 9 under the combined action of the filter screen 18 and the sieve mesh 17, and further the influence of the sand and stones on the service life of the ball body 2 is avoided;

the connecting disc 7 can be directly separated from the flange 6 by rotating the connecting disc 7, so that sundries in the shield cover 9 can be quickly cleaned, and the device can be used for a long time.

Referring to fig. 1-2, the pressing mechanism includes a cylindrical groove 13 and a push rod 15, the cylindrical groove 13 is opened inside the valve body 1, the push rod 15 is welded on one side of the connecting ring 10, one end of the push rod 15 extends into the cylindrical groove 13 and is connected with a connecting block 12, a spring 14 is arranged between the connecting block 12 and the cylindrical groove 13, and a limit ring 16 is fixed inside the cylindrical groove 13 outside the push rod 15;

the diameter of the limiting ring 16 is consistent with the inner diameter of the cylindrical groove 13, and the inner diameter of the limiting ring 16 is consistent with the diameter of the ejector rod 15.

Through the technical scheme:

during the use, spring 14 can make connecting block 12, ejector pin 15 and go-between 10 whole remove to spheroid 2's direction in real time, and spacing ring 16 can further improve the stability that ejector pin 15 removed the in-process simultaneously, and then makes rubber ring 11 extrude spheroid 2 all the time, can avoid rubber ring 11 and spheroid 2 to produce the gap to improve the leakproofness of device.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a ball valve that sealing performance is good, includes valve body (1), ring flange (6) have all been welded at the both ends of valve body (1), and the inside middle department of valve body (1) is rotated through rotating the seat and is connected with spheroid (2), the top of spheroid (2) is connected with valve rod (3), the one end of valve rod (3) extends to the outside of valve body (1) and is connected with hand wheel (4), its characterized in that: the inside of ring flange (6) has connection pad (7) through threaded connection, the inside that one side of connection pad (7) is located valve body (1) is provided with the filtering mechanism who is used for filtering rivers debris, the both sides that the inside of valve body (1) is located spheroid (2) all are provided with rubber ring (11), rubber ring (11) are fixed with go-between (10) for one side of spheroid (2), the both sides that the inside of valve body (1) is located go-between (10) all are provided with the hold-down mechanism who is used for rubber ring (11) and spheroid (2) to compress tightly.

2. A ball valve with good sealing performance as claimed in claim 1, wherein: the filtering mechanism comprises a blocking cover (9), the blocking cover (9) is fixed on one side of the connecting disc (7), the blocking cover (9) is located inside the valve body (1), and sieve holes (17) used for separating gravel particles are formed in the inner wall of the blocking cover (9).

3. A ball valve with good sealing performance as claimed in claim 2, wherein: one side that the inside of keeping off cover (9) is located sieve mesh (17) is installed filter screen (18), packing ring (8) have been placed between connection pad (7) and valve body (1), the negative pressure groove has been seted up to the outer wall of packing ring (8).

4. A ball valve with good sealing performance as claimed in claim 2, wherein: grooves (5) are formed in the outer portion of the blocking cover (9) in an annular array.

5. A ball valve with good sealing performance as claimed in claim 1, wherein: hold-down mechanism includes cylindrical groove (13) and ejector pin (15), the inside in valve body (1) is seted up in cylindrical groove (13), ejector pin (15) weld in one side of go-between (10), the one end of ejector pin (15) extends to the inside in cylindrical groove (13) and is connected with connecting block (12), be provided with spring (14) between connecting block (12) and cylindrical groove (13), the inside in cylindrical groove (13) is located the outside fixed limit ring (16) of ejector pin (15).

6. A ball valve with good sealing performance as claimed in claim 5, wherein: the diameter of the limiting ring (16) is consistent with the inner diameter of the cylindrical groove (13), and the inner diameter of the limiting ring (16) is consistent with the diameter of the ejector rod (15).