CN210484672U

CN210484672U - Ball valve

Info

Publication number: CN210484672U
Application number: CN201921503407.0U
Authority: CN
Inventors: 李尚充; 金玲敏; 陈国龙
Original assignee: Zhejiang Kaicheng Machinery Co ltd
Current assignee: Zhejiang Kaicheng Machinery Co ltd
Priority date: 2019-09-10
Filing date: 2019-09-10
Publication date: 2020-05-08
Anticipated expiration: 2029-09-10

Abstract

The utility model discloses a ball valve, which comprises a valve body, a valve rod and a ball body, wherein a left valve seat is embedded in a left valve seat groove of the valve body, a right valve seat is embedded in a right valve seat groove of the valve body, and a nickel-based wear-resistant alloy layer is overlaid on the outer surface of the ball body; the right end of the left valve seat is fixedly provided with a first elastic sealing layer, and the left valve seat forms a seal with the outer surface of the nickel-based wear-resistant alloy layer through the first elastic sealing layer; a second elastic sealing layer is fixedly arranged at the left end of the right valve seat, and the right valve seat forms sealing with the outer surface of the nickel-based wear-resistant alloy layer through the second elastic sealing layer; the right end of the valve body is welded with a metal snakeskin pipe, and the end of the metal snakeskin pipe, which is far away from the valve body, is welded with a connecting flange. Above-mentioned technical scheme, structural design is reasonable, simple structure, spheroid rotate nimble, the difficult wearing and tearing of disk seat, can adjust out liquid interface mounted position, the installation is easy, convenient to use and practicality are good.

Description

Ball valve

Technical Field

The utility model relates to the technical field of valves, concretely relates to ball valve.

Background

The existing ball valve generally comprises a liquid inlet interface, a liquid outlet interface and a valve body, wherein two ends of the valve body are opened, two ends of the valve body are respectively connected with the liquid inlet interface and the liquid outlet interface, a flow path for communicating the liquid inlet interface and the liquid outlet interface is arranged in the valve body, a ball body is arranged in the valve body, the ball body opens and closes the flow path in the valve body by rotating around a reference shaft, a valve rod is arranged on the valve body, the ball body can rotate around the reference shaft by rotating the valve rod, two annular valve seats are arranged in the valve body, the two valve seats are respectively arranged at two ends of the valve body and are tightly abutted against the ball body, and the ball body always abuts against the end faces of the two valve seats when rotating, so that when the ball body rotates, the valve seats can apply larger resistance to the ball body, the valve seats block the rotation of the ball body, easy leakage; in addition, the positions of the liquid inlet interface and the liquid outlet interface of the existing ball valve are fixed and cannot be adjusted, the installation operation is troublesome when the ball valve meets a complex installation position, even the situation of incapability of installation occurs, the use is inconvenient, and the practicability is poor.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a ball valve that structural design is reasonable, simple structure, spheroid rotate in a flexible way, the disk seat is difficult for wearing and tearing, can adjust liquid outlet interface mounted position, the installation is easy, convenient to use and practicality are good.

In order to achieve the above purpose, the utility model provides a following technical scheme: a ball valve comprises a valve body, a valve rod and a ball body, wherein a liquid inlet pipe is integrally arranged at the left end of the valve body, a valve cavity is arranged in the valve body, the ball body is installed in the valve cavity, a valve rod through hole is formed in the upper end of the valve body, the valve rod penetrates through the valve rod through hole, the lower end of the valve rod is fixedly welded with the ball body, a left valve seat groove is formed in the position, located at the left end of the ball body, of the valve body, a left valve seat is embedded in the left valve seat groove, a right valve seat groove is formed in the position, located at the right end of the ball body, of the valve body, a; the right end of the left valve seat is fixedly provided with a first elastic sealing layer, and the left valve seat is sealed with the outer surface of the nickel-based wear-resistant alloy layer through the first elastic sealing layer; a second elastic sealing layer is fixedly arranged at the left end of the right valve seat, and the right valve seat is sealed with the outer surface of the nickel-based wear-resistant alloy layer through the second elastic sealing layer; the valve body right-hand member welding has the metal snakeskin pipe, the end welding that deviates from the valve body of metal snakeskin pipe has flange.

By adopting the technical scheme, the nickel-based wear-resistant alloy layer is welded on the outer surface of the ball body, so that the strength and the wear resistance of the ball body can be improved, the first elastic sealing layer is arranged on the left valve seat, the second elastic sealing layer is arranged on the right valve seat, and the ball body and the elastic sealing layers of the valve seats form sealing, so that the sealing performance is good, the ball body can flexibly rotate and is not easy to leak; the liquid outlet pipe of the valve body adopts the design of the metal snakeskin pipe, the metal snakeskin pipe can be bent at will, and when the metal snakeskin pipe meets a complex installation position, the installation position and the angle of the liquid outlet can be adjusted by bending the metal snakeskin pipe; the whole ball valve has the advantages of reasonable structural design, simple structure, flexible rotation of the ball body, difficult abrasion of the valve seat, capability of adjusting the installation position of the liquid outlet interface, easy installation, convenient use and good practicability.

The utility model discloses further set up to: the metal snakeskin tube is made of stainless steel materials, and the length of the metal snakeskin tube is 3-15 cm. Through this setting, metal snakeskin pipe length sets up rationally, convenient to use, and metal snakeskin pipe is stainless steel material, difficult corruption, long service life.

The utility model discloses still further set up to: the left end of feed liquor pipe an organic whole is provided with mounting flange, be provided with first sealing washer mounting groove on mounting flange's the left end face, embedded formula is provided with first sealing washer in the first sealing washer mounting groove. Through this setting, the structure sets up more rationally, and sealing performance is better, is difficult for leaking.

The utility model discloses still further set up to: and a second sealing ring mounting groove is formed in the right end face of the connecting flange, and a second sealing ring is embedded in the second sealing ring mounting groove. Through this setting, the structure sets up more rationally, and sealing performance is better, is difficult for leaking.

The utility model discloses still further set up to: the left end face of the first elastic sealing layer is fixedly bonded with the right end face of the left valve seat, and the first elastic sealing layer is made of polytetrafluoroethylene materials; the right end of the second elastic sealing layer is fixedly bonded with the left end face of the right valve seat, and the second elastic sealing layer is made of polytetrafluoroethylene materials.

The utility model discloses still further set up to: the first sealing ring and the second sealing ring are lip-shaped sealing rings and are made of silica gel materials.

The utility model has the advantages that: compared with the prior art, the structure of the utility model is more reasonable, the nickel-based wear-resistant alloy layer is welded on the outer surface of the ball body, the strength and the wear resistance of the ball body can be increased, the first elastic sealing layer is arranged on the left valve seat, the second elastic sealing layer is arranged on the right valve seat, the ball body and the elastic sealing layers of the valve seats form sealing, the sealing performance is good, the ball body rotates flexibly and is not easy to leak; the liquid outlet pipe of the valve body adopts the design of the metal snakeskin pipe, the metal snakeskin pipe can be bent at will, and when the metal snakeskin pipe meets a complex installation position, the installation position and the angle of the liquid outlet can be adjusted by bending the metal snakeskin pipe; the whole ball valve has the advantages of reasonable structural design, simple structure, flexible rotation of the ball body, difficult abrasion of the valve seat, capability of adjusting the installation position of the liquid outlet interface, easy installation, convenient use and good practicability.

The invention is further described with reference to the drawings and the specific embodiments.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is an enlarged view of section I of FIG. 1;

fig. 3 is an enlarged view of section II in fig. 1.

Detailed Description

In the description of the present embodiment, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "rear", etc. appear, the indicated orientation or positional relationship thereof is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Referring to fig. 1, 2 and 3, the utility model discloses a ball valve, including valve body 1, valve rod 2 and spheroid 3, the left end of valve body 1 an organic whole is provided with feed liquor pipe 11, is provided with valve cavity 12 in the valve body 1, spheroid 3 installs in valve cavity 12, valve rod through-hole 13 is provided with to the upper end of valve body 1, valve rod 2 wears to establish in valve rod through-hole 13, valve rod 2 lower extreme and spheroid 3 welded fastening, valve body 1 is located spheroid 3 left end position and is provided with left valve seat groove 14, the embedded left valve seat 4 that is provided with in left valve seat groove 14, valve body 1 is located spheroid 3 right end position and is provided with right valve seat groove 15, the embedded right valve seat 5 that is provided with in right valve seat groove 15, the surfacing welding has one deck nickel base wear-resistant 6 on the surface of spheroid 3; a first elastic sealing layer 7 is fixedly arranged at the right end of the left valve seat 4, and the left valve seat 4 forms a seal with the outer surface of the nickel-based wear-resistant alloy layer 6 through the first elastic sealing layer 7; a second elastic sealing layer 8 is fixedly arranged at the left end of the right valve seat 5, and the right valve seat 5 forms a seal with the outer surface of the nickel-based wear-resistant alloy layer 6 through the second elastic sealing layer 8; the right-hand member welding of valve body 1 has metal snakeskin pipe 9, metal snakeskin pipe 9 deviates from the valve body end welding and has flange 10.

Preferably, the metal bellows 9 is made of stainless steel material, and the length of the metal bellows 9 is 3-15 cm.

For making the utility model discloses the structure sets up more rationally, as preferred, the left end an organic whole of feed liquor pipe 11 is provided with mounting flange 16, be provided with first sealing washer mounting groove 161 on mounting flange 16's the left end face, the embedded first sealing washer 17 that is provided with in first sealing washer mounting groove 161.

A second sealing ring mounting groove 101 is formed in the right end face of the connecting flange 10, and a second sealing ring 18 is embedded in the second sealing ring mounting groove 101.

The left end face of the first elastic sealing layer 7 is fixedly bonded with the right end face of the left valve seat 4, and the first elastic sealing layer 7 is made of polytetrafluoroethylene material; the right end of the second elastic sealing layer 8 is fixedly bonded with the left end face of the right valve seat 5, and the second elastic sealing layer 8 is made of polytetrafluoroethylene materials.

The first sealing ring 17 and the second sealing ring 18 are lip-shaped sealing rings, and the first sealing ring 17 and the second sealing ring 18 are made of silica gel materials.

In practical application, the nickel-based wear-resistant alloy layer is welded on the outer surface of the ball body, so that the strength and the wear resistance of the ball body can be improved, the first elastic sealing layer is arranged on the left valve seat, the second elastic sealing layer is arranged on the right valve seat, and the ball body and the elastic sealing layers of the valve seats form sealing, so that the sealing performance is good, the ball body can flexibly rotate and is not easy to leak; the liquid outlet pipe of the valve body adopts the design of the metal snakeskin pipe, the metal snakeskin pipe can be bent at will, and when the metal snakeskin pipe meets a complex installation position, the installation position and the angle of the liquid outlet can be adjusted by bending the metal snakeskin pipe; the whole ball valve has the advantages of reasonable structural design, simple structure, flexible rotation of the ball body, difficult abrasion of the valve seat, capability of adjusting the installation position of the liquid outlet interface, easy installation, convenient use and good practicability.

The above embodiments are only used for further explanation of the present invention, and it is not understood that the present invention is limited by the protection scope of the present invention, and the technical engineers in the field are right according to the above contents of the present invention.

Claims

1. The utility model provides a ball valve, includes valve body (1), valve rod (2) and spheroid (3), valve body (1) left end an organic whole is provided with feed liquor pipe (11), is provided with valve pocket (12) in valve body (1), install in valve pocket (12) spheroid (3), valve body (1) upper end is provided with valve rod through-hole (13), valve rod (2) are worn to establish in valve rod through-hole (13), valve rod (2) lower extreme and spheroid (3) welded fastening, valve body (1) are located spheroid (3) left end position and are provided with left valve seat groove (14), the embedded formula of left side valve seat groove (14) is provided with left disk seat (4), valve body (1) are located spheroid (3) right-hand member position and are provided with right valve seat groove (15), the embedded formula of right side valve seat groove (15) is provided with right valve seat (5), its characterized in that: a nickel-based wear-resistant alloy layer (6) is welded on the outer surface of the ball body (3); a first elastic sealing layer (7) is fixedly arranged at the right end of the left valve seat (4), and the left valve seat (4) is sealed with the outer surface of the nickel-based wear-resistant alloy layer (6) through the first elastic sealing layer (7); a second elastic sealing layer (8) is fixedly arranged at the left end of the right valve seat (5), and the right valve seat (5) is sealed with the outer surface of the nickel-based wear-resistant alloy layer (6) through the second elastic sealing layer (8); the valve is characterized in that a metal snakeskin pipe (9) is welded at the right end of the valve body (1), and a connecting flange (10) is welded at the end, deviating from the valve body, of the metal snakeskin pipe (9).

2. A ball valve according to claim 1, wherein: the metal snakeskin tube (9) is made of stainless steel materials, and the length of the metal snakeskin tube (9) is 3-15 cm.

3. A ball valve according to claim 2, wherein: the left end of feed liquor pipe (11) an organic whole is provided with mounting flange (16), be provided with first sealing washer mounting groove (161) on the left end face of mounting flange (16), embedded formula is provided with first sealing washer (17) in first sealing washer mounting groove (161).

4. A ball valve according to claim 3, wherein: and a second sealing ring mounting groove (101) is formed in the right end face of the connecting flange (10), and a second sealing ring (18) is embedded in the second sealing ring mounting groove (101).

5. A ball valve according to claim 1, wherein: the left end face of the first elastic sealing layer (7) is fixedly bonded with the right end face of the left valve seat (4), and the first elastic sealing layer (7) is made of polytetrafluoroethylene material; the right end of the second elastic sealing layer (8) is fixedly bonded with the left end face of the right valve seat (5), and the second elastic sealing layer (8) is made of polytetrafluoroethylene materials.

6. A ball valve according to claim 4, wherein: the first sealing ring (17) and the second sealing ring (18) are lip-shaped sealing rings, and the first sealing ring (17) and the second sealing ring (18) are made of silica gel materials.