CN217502645U

CN217502645U - High leakproofness ball valve

Info

Publication number: CN217502645U
Application number: CN202220699420.3U
Authority: CN
Inventors: 吴协; 王阳锋; 汪加豪
Original assignee: Zhejiang Hebron Controls Engineering Technology Co ltd
Current assignee: Zhejiang Hebron Controls Engineering Technology Co ltd
Priority date: 2022-03-28
Filing date: 2022-03-28
Publication date: 2022-09-27
Anticipated expiration: 2032-03-28

Abstract

The utility model relates to a high leakproofness ball valve, including the valve body, the side of valve body is provided with the valve gap, be provided with the ball core in the valve body, the top fixedly connected with valve rod of ball core, the middle part of valve body is provided with the mesopore, mesoporous inboard is provided with the processing screw thread, mesoporous internally mounted has first sealing washer, the valve body has the gland nut who is in the top of first sealing washer through mesopore threaded connection. The utility model has the advantages of the phenomenon of revealing that difficult production leads to because gland nut is not hard up.

Description

High leakproofness ball valve

Technical Field

The utility model relates to a ball valve technical field, concretely relates to high leakproofness ball valve.

Background

The ball valve has the main characteristics of compact structure, reliable sealing, simple structure, convenient maintenance, closed sealing surface and spherical surface, difficult erosion by media, easy operation and maintenance, and suitability for common working media such as water, solvent, acid, natural gas and the like, and also for media with severe working conditions such as oxygen, hydrogen peroxide, methane, ethylene and the like, so the ball valve is widely applied in various industries.

Regardless of the sealing of the valve rod and the valve body of the ball valve in a single style or a combined style, threads are machined on the valve rod, the sealing ring between the valve rod and the valve body is extruded and deformed by the tensile force of the thin nut screwed on the valve rod, the valve body and the valve rod are sealed, the valve rod can drive the thin nut to rotate together in the using process, and the problem of leakage is caused by the fact that the thin nut is loosened in the long-term using process, so that improvement is needed.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a high leakproofness ball valve, it has the difficult advantage that produces because the not hard up phenomenon of revealing that leads to of gland nut.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a high leakproofness ball valve, includes the valve body, and the side of valve body is provided with the valve gap, be provided with the ball core in the valve body, the top fixedly connected with valve rod of ball core, the middle part of valve body is provided with the mesopore, mesoporous inboard is provided with the processing screw thread, mesoporous internally mounted has first sealing washer, the valve body has the gland nut who is in the top of first sealing washer through mesopore threaded connection.

Through adopting above-mentioned technical scheme, valve body mesopore department processing screw thread, first sealing washer is put into to the mesopore, and gland nut twists in the valve body mesopore and presses on first sealing washer, makes first sealing washer extrusion deformation and valve rod contact, causes valve rod and valve body to seal, because gland nut does not just fix on the valve body mesopore with the valve rod contact, is difficult for producing because gland nut is not hard up the leakage phenomenon that leads to in this valve use.

The utility model discloses further set up to: the fixed handle that has cup jointed in top of valve rod, the upper end threaded connection of valve rod has hexagon nut, be provided with spring washer between hexagon nut and the handle.

Through adopting above-mentioned technical scheme, with the handle cup joint back on the valve rod, rotatory hexagon nut extrudees spring washer and then extrudees the handle to let handle and valve rod fixed connection, conveniently rotate the valve rod, reverse operation can let handle and valve rod separation, thereby conveniently replace the handle.

The utility model discloses further set up to: and a second sealing ring positioned at the outer side of the ball core is arranged in the valve body.

Through adopting above-mentioned technical scheme, the setting of second sealing washer can increase the leakproofness between ball core and the valve body.

The utility model discloses further set up to: the side of valve body is provided with outer hexagon bolt, outer hexagon bolt threaded connection has hexagon nut, hexagon nut is provided with spring washer towards one side of valve body.

Through adopting above-mentioned technical scheme, rotatory hexagon nut can let valve gap and valve body fixed connection.

The utility model discloses further set up to: the handle is sleeved with a rubber sleeve.

Through adopting above-mentioned technical scheme, the frictional force on handle surface can be increased in the setting of rubber sleeve, the condition of avoiding skidding.

The utility model discloses further set up to: both ends of the valve cover are provided with grooves.

Through adopting above-mentioned technical scheme, the setting up of recess makes things convenient for valve gap and other part joint.

To sum up, the utility model discloses following beneficial effect has:

the valve body centre bore department processes the screw thread, and first sealing washer is put into to the centre bore, and gland nut twists in the valve body centre bore and presses on first sealing washer, makes first sealing washer extrusion deformation and valve rod contact, causes valve rod and valve body to seal, because gland nut does not contact with the valve rod and only fixes on the valve body centre bore, is difficult for producing because gland nut is not hard up the leakage phenomenon that leads to in this valve use.

Drawings

Fig. 1 is a schematic structural diagram of the embodiment.

Reference numerals: 1. a hexagonal nut; 2. a spring washer; 3. a handle; 4. a valve body; 5. a valve cover; 6. a second seal ring; 7. a ball core; 8. a groove; 9. a mesopore; 10. an outer hexagon bolt; 11. a first seal ring; 12. a compression nut; 13. a rubber sleeve; 14. a valve stem.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

The utility model provides a high leakproofness ball valve, includes valve body 4, and the side of valve body 4 is provided with valve gap 5, be provided with ball core 7 in the valve body 4, the top fixedly connected with valve rod 14 of ball core 7, the middle part of valve body 4 is provided with mesopore 9, and valve rod 14 is located mesopore 9, mesopore 9's inboard is provided with the processing screw thread, mesopore 9's internally mounted has first sealing washer 11, and first sealing washer 11 cup joints in the outside of valve rod 14, valve body 4 has gland nut 12 in first sealing washer 11's top through mesopore 9 threaded connection.

The handle 3 is fixedly sleeved above the valve rod 14, the upper end of the valve rod 14 is in threaded connection with a hexagonal nut 1, and a spring washer 2 is arranged between the hexagonal nut 1 and the handle 3.

And a second sealing ring 6 positioned at the outer side of the ball core 7 is arranged in the valve body 4.

The side of valve body 4 is provided with outer hex bolts 10, outer hex bolts 10 threaded connection has hex nuts 1, one side of hex nuts 1 towards valve body 4 is provided with spring washer 2.

The handle 3 is sleeved with a rubber sleeve 13.

Both ends of the valve cover 5 are provided with grooves 8.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, any modification, equivalent replacement, or improvement made within the design concept of the present invention should be included within the protection scope of the present invention.

Claims

1. The utility model provides a high leakproofness ball valve, includes valve body (4), and the side of valve body (4) is provided with valve gap (5), its characterized in that: be provided with ball core (7) in valve body (4), the top fixedly connected with valve rod (14) of ball core (7), the middle part of valve body (4) is provided with mesopore (9), the inboard of mesopore (9) is provided with the processing screw thread, the internally mounted of mesopore (9) has first sealing washer (11), valve body (4) have gland nut (12) that are in the top of first sealing washer (11) through mesopore (9) threaded connection.

2. A high-sealing ball valve according to claim 1, wherein: the handle (3) is fixedly sleeved above the valve rod (14), the upper end of the valve rod (14) is in threaded connection with a hexagonal nut (1), and a spring washer (2) is arranged between the hexagonal nut (1) and the handle (3).

3. A high-sealing ball valve according to claim 1, wherein: and a second sealing ring (6) positioned on the outer side of the ball core (7) is arranged in the valve body (4).

4. A high-sealing ball valve according to claim 1, wherein: the side of valve body (4) is provided with outer hex bolts (10), outer hex bolts (10) threaded connection has hex nut (1), one side that hex nut (1) is towards valve body (4) is provided with spring washer (2).

5. A high-sealing ball valve according to claim 2, wherein: the handle (3) is sleeved with a rubber sleeve (13).

6. A high-sealing ball valve according to claim 1, wherein: both ends of the valve cover (5) are provided with grooves (8).