CN212959961U

CN212959961U - Maintenance-free ball valve

Info

Publication number: CN212959961U
Application number: CN202021584591.9U
Authority: CN
Inventors: 孙宁; 颜志汉; 颜志伟; 王宝健; 颜志波
Original assignee: Liangzheng Valve Co ltd
Current assignee: Liangzheng Valve Co ltd
Priority date: 2020-08-04
Filing date: 2020-08-04
Publication date: 2021-04-13
Anticipated expiration: 2030-08-04

Abstract

The utility model discloses a maintenance-free ball valve, which comprises a valve body and a support ring, wherein the left side and the right side of the outer surface of the valve body are both fixedly provided with end covers, a bottom cover penetrates through the valve body, the left side and the right side of the bottom cover are fixedly connected with the bottom of the valve body through first screws, the left side and the right side of the outer surface of the bottom of the end cover are both fixedly connected with a supporting seat through second screws, one end of each second screw penetrates through the supporting seat, the end cover and the valve body in sequence, the top of the bottom cover is rotatably connected with a ball body, the left side and the right side of the outer surface of the top of the end cover are fixedly connected with lifting lugs through third screws, lug, end cover and valve body are run through in proper order to the one end of third screw, the utility model discloses a cooperation between second screw and the supporting seat can realize realizing the fixed between valve body and the end cover, thereby avoids appearing loose the condition that leads to sealed effect difference between valve body and the end cover to appear.

Description

Maintenance-free ball valve

Technical Field

The utility model relates to a ball valve technical field specifically is a non-maintaining ball valve.

Background

The all-welded ball valve is a new type valve product, and because the all-welded ball valve is welded and fixed, it can be deeply buried underground, and can be extensively used as closed-circuit device on the pipelines of water, natural gas, petroleum liquefied gas and oil refining, airport, chemical industry and oil gas storage and transportation, etc..

Chinese patent (CN 204477368U) discloses an all-welded ball valve, which comprises a valve body, the spheroid of taking the opening, the valve rod, the disk seat, left end lid and right-hand member lid, be equipped with the valve pocket in the valve body, the spheroid is located the valve pocket, the one end of valve rod stretches into the valve pocket, and with spheroid fixed connection, the disk seat is located spheroidal both sides, and respectively with left end lid and right-hand member lid fixed connection, left end lid and right-hand member are covered and are equipped with first passageway and second passageway, this patent provides one kind and seals effectually, the spheroid rotates smoothly, the firm all-welded ball valve of welding, but the valve body that this patent set up is fixed firm inadequately with the end cover of both sides, although spheroid and end cover sealing are than better, the loose condition still can appear if the end cover is fixed insecure, therefore the utility model provides a maintenance-free ball valve.

Disclosure of Invention

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

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model provides a non-maintaining ball valve, including valve body and lock ring, the equal fixed mounting in the left and right sides of valve body surface has the end cover, the inside of valve body is run through there is the bottom, the bottom fixed connection of first screw and valve body is all passed through to the left and right sides of bottom, the left and right sides of end cover bottom surface all is through second screw fixedly connected with supporting seat, end cover and valve body are run through in proper order to the one end of second screw.

As an optimal technical solution of the utility model: the top of bottom rotates and is connected with the spheroid, the left and right sides of end cover top surface all is through third screw fixed connection lug.

As an optimal technical solution of the utility model: one end of the third screw penetrates through the lifting lug, the end cover and the valve body in sequence.

As an optimal technical solution of the utility model: and a stuffing box penetrates through the top of the inner surface of the valve body, and the inside of the stuffing box is fixedly connected with the inside of the valve body through a fourth screw.

As an optimal technical solution of the utility model: the packing box is characterized in that a valve rod is rotatably connected inside the packing box, and the bottom end of the valve rod is connected with the top of the ball body.

As an optimal technical solution of the utility model: the top of the stuffing box is fixedly connected with a top flange through an inner hexagon screw.

As an optimal technical solution of the utility model: the supporting rings are provided with two supporting rings, the two supporting rings are arranged on respective end covers, a spring is arranged between each supporting ring and each end cover, and the supporting rings are provided with at least one hard sealing ring and at least one soft sealing ring.

The utility model discloses the beneficial effect who reaches is: the utility model discloses a cooperation between second screw and the supporting seat can realize realizing the fixed between valve body and the end cover, thereby avoids appearing loose the condition appearance that leads to sealed effect difference between valve body and the end cover.

Drawings

Fig. 1 is a schematic structural diagram of a maintenance-free ball valve.

Fig. 2 is an enlarged view of a portion a of the maintenance-free ball valve of fig. 1.

Fig. 3 is an enlarged view of a portion of the maintenance-free ball valve at B in fig. 1.

In the figure: 1. a valve body; 2. a support ring; 3. a bottom cover; 4. a first screw; 5. a second screw; 6. a supporting seat; 7. a sphere; 8. a third screw; 9. lifting lugs; 10. a stuffing box; 11. a fourth screw; 12. a valve stem; 13. a socket head cap screw; 14. a top flange; 15. a support ring; 16. a spring; 17. a hard seal ring; 18. a soft sealing ring.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example (b): as shown in fig. 1-3, the utility model provides a maintenance-free ball valve, including valve body 1 and lock ring 15, the equal fixed mounting in the left and right sides of 1 surface of valve body has end cover 2, and bottom 3 has been run through to the inside of valve body 1, and the bottom fixed connection of first screw 4 and valve body 1 is all passed through to the left and right sides of 3 bottoms of bottom, and the left and right sides of 2 bottom surfaces of end cover all runs through second screw 5 fixedly connected with supporting seat 6, and supporting seat 6, end cover 2 and valve body 1 are run through in proper order to the one end of second screw 5.

Wherein, the top of bottom 3 is rotated and is connected with spheroid 7, and the left and right sides of end cover 2 top surface all is through third screw 8 fixedly connected with lug 9.

Wherein, one end of the third screw 8 penetrates the lifting lug 9, the end cover 2 and the valve body 1 in sequence.

Wherein, the top of valve body 1 internal surface has run through stuffing box 10, and the inside of stuffing box 10 passes through fourth screw 11 fixed connection with the inside of valve body 1.

Wherein, the interior of the stuffing box 10 is rotatably connected with a valve rod 12, and the bottom end of the valve rod 12 is connected with the top of the sphere 7.

Wherein, the top of the stuffing box 10 is fixedly connected with a top flange 14 through a hexagon socket head cap screw 13.

The number of the support rings is two, the two support rings 15 are mounted on the respective end covers 2, a spring 16 is arranged between the support rings 15 and the end covers 2, and at least one hard seal ring 17 and at least one soft seal ring 18 are arranged on the support rings 15.

The utility model discloses a cooperation between second screw 5 and the supporting seat 6 can be realized realizing the fixed between valve body 1 and the end cover 2, thereby it is loose to appear leading to the poor condition of sealed effect to appear between valve body 1 and the end cover 2 to avoid

Specifically, the utility model discloses during the use: can fix two supporting seats 6 in the bottom of valve body 1 through the cooperation between second screw 5 and the third screw 8, fix lug 9 at the top of valve body 1 simultaneously, solve the fixed insecure problem of end cover 2 on the one hand to conveniently solve the problem of support, two rigid sealing rings 17 and soft sealing ring 18 on the support ring 15 can be guaranteed to the spring 16 simultaneously and tightly support spheroid 7 all the time, improve sealing performance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. The utility model provides a non-maintaining ball valve, includes valve body (1) and lock ring (15), its characterized in that, the equal fixed mounting in the left and right sides of valve body (1) surface has end cover (2), the inside of valve body (1) is run through bottom (3), the bottom fixed connection of first screw (4) and valve body (1) is all passed through to the left and right sides of bottom (3) bottom, the left and right sides of end cover (2) bottom surface all is through second screw (5) fixedly connected with supporting seat (6), the one end of second screw (5) is run through supporting seat (6), end cover (2) and valve body (1) in proper order.

2. The maintenance-free ball valve as claimed in claim 1, wherein the top of the bottom cover (3) is rotatably connected with a ball body (7), and the left and right sides of the outer surface of the top of the end cover (2) are fixedly connected with lifting lugs (9) through third screws (8).

3. A maintenance-free ball valve according to claim 2, wherein one end of the third screw (8) penetrates through the lifting lug (9), the end cover (2) and the valve body (1) in sequence.

4. A maintenance-free ball valve according to claim 1, characterized in that a stuffing box (10) penetrates through the top of the inner surface of the valve body (1), and the inside of the stuffing box (10) is fixedly connected with the inside of the valve body (1) through a fourth screw (11).

5. A maintenance-free ball valve according to claim 4, characterized in that a valve stem (12) is rotatably connected to the inside of the stuffing box (10), and the bottom end of the valve stem (12) is connected to the top of the ball (7).

6. A maintenance-free ball valve according to claim 4, characterized in that the top of the stuffing box (10) is fixedly connected with a top flange (14) by means of socket head cap screws (13).

7. A maintenance-free ball valve according to claim 1, wherein there are two support rings (15), two support rings (15) are mounted on the respective end caps (2), a spring (16) is disposed between the support rings (15) and the end caps (2), and at least one hard seal ring (17) and at least one soft seal ring (18) are disposed on the support rings (15).