CN218718967U

CN218718967U - High-pressure hard sealing ball valve

Info

Publication number: CN218718967U
Application number: CN202223112742.2U
Authority: CN
Inventors: 王振见; 张旗
Original assignee: Jiangsu Yichuang Automatic Control Valve Co ltd
Current assignee: Jiangsu Yichuang Automatic Control Valve Co ltd
Priority date: 2022-11-23
Filing date: 2022-11-23
Publication date: 2023-03-24
Anticipated expiration: 2032-11-23

Abstract

The utility model provides a high pressure ball valve sealed firmly, including the valve body, go up base, lower base, installation pipe, valve rod, fixed establishment, valve ball, self-interacting sealing mechanism. An upper base is fixedly arranged on the upper wall of the valve body embedded in the right middle of the valve body; the lower base is fixedly arranged at the right middle part of the corresponding valve body and is embedded into the lower wall of the valve body. The mounting pipe is arranged right above the valve body and communicated with the valve body; the inner wall of the inner pipe at the lowest end of the mounting pipe is provided with a sealing groove; the valve ball is arranged between the upper base and the lower base and is attached to the valve body; the lower end of the valve rod extends into the mounting pipe, penetrates through the upper base and is fixedly connected with the valve ball; a transverse plate is arranged at the upper end of the valve rod, and a handle is fixedly arranged on the transverse plate; the valve rod is rotatably connected with the inner wall of the mounting pipe and the upper base, and the valve rod can drive the valve ball to rotate by rotating; the upper end of the mounting pipe is provided with a fixing mechanism for fixing the valve rod; and self-adjusting sealing mechanisms are respectively arranged in the two sealing grooves. This novel sealed effect between installation pipe and the valve rod can be guaranteed in the influence that can avoid expend with heat and contract with cold.

Description

High-pressure hard sealing ball valve

Technical Field

The utility model relates to a ball valve technical field specifically is a high pressure ball valve sealed firmly.

Background

A ball valve is a widely used valve, and the valve cavity is opened and closed by rotating a valve rod by 90 degrees to drive the valve ball to rotate. The hard sealing ball valve belongs to one of ball valves and corresponds to the soft sealing ball valve; a hard seal ball valve refers to a ball valve in which the material of the sealing pair of the ball valve is matched to a metal-to-metal ball valve.

When the existing equipment is used, the equipment can be used at different temperatures such as high temperature and low temperature, and due to the influence of expansion with heat and contraction with cold, when the temperature of the equipment changes, a sealing gasket and the like are slightly deformed due to the reaction of expansion with heat and contraction with cold, so that the sealing effect of the sealing gasket and the like is reduced, and the sealing between the inner wall of the installation pipe and the valve rod cannot be guaranteed; a high pressure hard seal ball valve is thus proposed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

Problem to current technical scheme existence, the utility model aims at providing a high pressure ball valve sealed firmly.

In order to achieve the above object, the utility model provides a following technical scheme:

a high pressure hard seal ball valve comprising:

a valve body; an upper base is fixedly arranged on the upper wall of the valve body embedded in the right middle of the valve body; the lower base is fixedly arranged at the right middle part of the corresponding valve body and is embedded into the lower wall of the valve body.

The high-pressure hard seal ball valve further comprises: the mounting pipe, the valve rod, the fixing mechanism, the valve ball and the self-adjusting sealing mechanism are arranged on the mounting pipe; the mounting pipe is arranged right above the valve body and communicated with the valve body; the inner wall of the inner pipe at the lowest end of the mounting pipe is provided with a sealing groove; the valve ball is arranged between the upper base and the lower base and is attached to the valve body; the lower end of the valve rod extends into the mounting pipe, penetrates through the upper base and is fixedly connected with the valve ball; a transverse plate is arranged at the upper end of the valve rod, and a handle is fixedly arranged on the transverse plate; the valve rod is rotatably connected with the inner wall of the mounting pipe and the upper base, and the valve rod can drive the valve ball to rotate by rotating; the upper end of the mounting pipe is provided with a fixing mechanism for fixing the valve rod; and self-adjusting sealing mechanisms are respectively arranged in the two sealing grooves.

As a further improvement of the present solution, the sealing groove is annular.

As a further improvement of the scheme, the self-adjusting sealing mechanism comprises a sealing gasket, a fixed ring plate, a plurality of second telescopic rods, a plurality of second springs and a sealing ring sheet; the sealing gasket is arranged at the bottom of the sealing groove, has the same width as the sealing groove and is annular; a fixed ring plate is fixedly arranged in the middle of the upper part of the sealing gasket; the plurality of second telescopic rods are respectively and fixedly arranged on two sides of the fixed ring plate, and the other ends of the second telescopic rods on the inner side and the outer side of the fixed ring plate are fixedly connected with sealing ring pieces; a second spring is sleeved outside each second telescopic rod; one end of the second spring is fixedly connected with the fixed ring plate, and the other end of the second spring is fixedly connected with the sealing ring sheet.

As a further improvement of this solution, the second springs are all in a compressed state.

As a further improvement of the scheme, the sealing gasket and the sealing ring sheet are both made of rubber.

As a further improvement of the scheme, the fixing mechanism comprises a fixing ring seat, a threaded hole and a fixing screw rod; the fixed ring seat is fixedly arranged right above the installation pipe; four threaded holes are uniformly formed in the fixed ring seat; the fixing screw rod penetrates through a transverse plate at the upper end of the valve rod and then extends into the threaded hole; the fixing screw rod is in threaded connection with the transverse plate and the threaded hole, and the valve rod is firmly fixed.

As a further improvement of the scheme, the valve rod is made of stainless steel.

Compared with the prior art, the beneficial effects of the utility model are that: this is novel because the sealed pad of temperature rapid reduction in the equipment and the seal ring piece produce when deformation because expend with heat and contract with cold, produce the gap between sealed pad and the valve rod, the seal ring piece takes place the deformation back this moment, and the second spring can extend, drives the extension of second telescopic link, pushes up the seal ring piece outwards for seal groove wall and valve rod are hugged closely respectively to two seal ring pieces continuation, make the sealed between installation intraductal wall and the valve rod obtain the guarantee, prevent to leak.

Drawings

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

Fig. 1 is a schematic cross-sectional view of the present invention;

FIG. 2 is a schematic cross-sectional view of the fixing ring seat of the present invention;

fig. 3 is a schematic view of the fixing mechanism of the present invention;

FIG. 4 is a schematic view of the present invention at A in FIG. 1;

the figure is marked with 1, a valve body; 3. an upper base; 4. a lower base; 5. installing a pipe; 51. a sealing groove; 6. a valve stem; 61. a handle; 7. a fixing mechanism; 71. a stationary ring seat; 72. a threaded hole; 73. fixing the screw rod; 8. a valve ball; 10. A self-adjusting sealing mechanism; 102. a gasket; 103. a stationary ring plate; 104. a second telescopic rod; 105. a second spring; 106. and (4) sealing the ring sheet.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the embodiments of the present invention and the accompanying drawings, and obviously, the described embodiments are some, not all, of the embodiments of the present invention.

Example 1:

as shown in fig. 1 to 3, the high-pressure hard seal ball valve of the present embodiment includes: the valve comprises a valve body 1, an upper base 3, a lower base 4, a mounting pipe 5, a valve rod 6, a fixing mechanism 7, a valve ball 8 and a self-adjusting sealing mechanism 10.

An upper base 3 is fixedly arranged on the upper wall of the valve body 1 embedded in the middle of the valve body 1; a lower base 4 is fixedly arranged at the lower wall of the valve body 1 embedded in the middle of the corresponding valve body 1; the mounting pipe 5 is mounted right above the valve body 1 and communicated with the valve body 1; the inner wall of the inner pipe at the lowest end of the mounting pipe 5 is provided with a sealing groove 51; the valve ball 8 is arranged between the upper base 3 and the lower base 4 and is jointed with the valve body 1; the lower end of the valve rod 6 extends into the mounting pipe 5, penetrates through the upper base 3 and is fixedly connected with the valve ball 8; a transverse plate is arranged at the upper end of the valve rod 6, and a handle 61 is fixedly arranged on the transverse plate; the valve rod 6 is rotatably connected with the inner wall of the mounting pipe 5 and the upper base 3, and the valve rod 6 can drive the valve ball 8 to rotate; the upper end of the mounting pipe 5 is provided with a fixing mechanism 7 for fixing the valve rod 6; the two seal grooves 51 have self-adjusting seal mechanisms 10 mounted therein.

When the ball valve needs to be opened, firstly, the fixing mechanism 7 is unlocked to fix the valve rod 6, and the valve rod 6 is rotated by 90 degrees to drive the valve ball 8 to rotate to a valve channel in the valve ball 8 to be opened; the valve stem 6 is then fixed using the fixing mechanism 7; when this is novel because the equipment in the temperature reduces fast because expend with heat and contract with cold and produce deformation, self-interacting sealing mechanism 10 realizes that the self-interacting makes the sealed of installation between 5 inner walls of pipe and the valve rod 6 protected, prevents to leak.

Example 2:

as shown in fig. 1 and 4, the high-pressure hard-seal ball valve of the present embodiment is substantially the same as that of embodiment 1, and further, the self-adjusting sealing mechanism 10 includes a sealing gasket 102, a fixed ring plate 103, a plurality of second telescopic rods 104, a plurality of second springs 105, and a sealing ring plate 106; the sealing gasket 102 is installed at the bottom of the sealing groove 51, has the same width as the sealing groove 51, and is annular; a fixed ring plate 103 is fixedly arranged in the middle of the upper part of the sealing gasket 102; the plurality of second telescopic rods 104 are respectively and fixedly arranged at two sides of the fixed ring plate 103, and the other ends of the second telescopic rods 104 at the inner side and the second telescopic rods 104 at the outer side of the fixed ring plate 103 are fixedly connected with sealing ring pieces 106; a second spring 105 is sleeved outside each second telescopic rod 104; one end of the second spring 105 is fixedly connected with the fixed ring plate 103, and the other end is fixedly connected with the sealing ring sheet 106. The second springs 105 are all in a compressed state. The gasket 102 and the sealing ring plate 106 are made of rubber.

When this is novel because the sealed pad 102 of the quick reduction of temperature in the equipment and the seal ring piece 106 produce when deformation because expend with heat and contract with cold, produce the gap between sealed pad 102 and the valve rod 6, the back that takes place to deform in seal ring piece 106 this moment, second spring 105 can extend, drive the extension of second telescopic link 104, outwards push up seal ring piece 106, make two seal ring pieces 106 continue to hug closely seal groove 51 wall and valve rod 6 respectively, make the sealed between installation pipe 5 inner wall and the valve rod 6 obtain the guarantee, prevent to leak.

Example 3:

as shown in fig. 1, 2 and 3, the high-pressure hard-seal ball valve of the present embodiment is substantially the same as embodiment 2, and further, the fixing mechanism 7 includes a fixing ring seat 71, a threaded hole 72, and a fixing screw 73; the fixed ring seat 71 is fixedly arranged right above the installation pipe 5; four threaded holes 72 are uniformly formed in the fixed ring seat 71; the fixing screw rod 73 penetrates through a transverse plate at the upper end of the valve rod 6 and then extends into the threaded hole 72; the fixing screw rod 73 is in threaded connection with the transverse plate and the threaded hole 72 to firmly fix the valve rod 6; the valve rod 6 is made of stainless steel.

When the valve rod needs to be rotated, the fixing screw rod 73 is screwed out of the valve rod 6 and the threaded hole 72, and then the valve rod 6 is rotated through the handle 61; the valve stem 6 is fixed by rotating the valve stem 6 by 90 degrees and then fitting the fixing screw 73 to the valve stem 6 and the new corresponding screw hole 72.

The foregoing is merely exemplary and illustrative of the structure of the invention, and various modifications, additions and substitutions as described in the detailed description may be made by those skilled in the art without departing from the structure or scope of the invention as defined in the accompanying claims.

Claims

1. A high pressure hard seal ball valve comprising:

a valve body (1); an upper base (3) is fixedly arranged on the upper wall of the valve body (1) in the middle of the valve body (1); a lower base (4) is fixedly arranged at the middle of the corresponding valve body (1) and embedded into the lower wall of the valve body (1);

it is characterized in that the high-pressure hard sealing ball valve further comprises: the valve comprises an installation pipe (5), a valve rod (6), a fixing mechanism (7), a valve ball (8) and a self-adjusting sealing mechanism (10); the mounting pipe (5) is mounted right above the valve body (1) and communicated with the valve body (1); a sealing groove (51) is formed in the inner wall of the inner pipe at the lowest end of the mounting pipe (5); the valve ball (8) is arranged between the upper base (3) and the lower base (4) and is attached to the valve body (1); the lower end of the valve rod (6) extends into the mounting pipe (5), penetrates through the upper base (3) and is fixedly connected with the valve ball (8); a transverse plate is arranged at the upper end of the valve rod (6), and a handle (61) is fixedly arranged on the transverse plate; the valve rod (6) is rotatably connected with the inner wall of the mounting pipe (5) and the upper base (3), and the valve rod (6) can rotate to drive the valve ball (8) to rotate; the upper end of the mounting pipe (5) is provided with a fixing mechanism (7) for fixing the valve rod (6); and self-adjusting sealing mechanisms (10) are respectively installed in the two sealing grooves (51).

2. A high pressure hard seal ball valve in accordance with claim 1, wherein the seal groove (51) is annular.

3. A high-pressure hard-seal ball valve according to claim 2, characterized in that the self-adjusting sealing mechanism (10) comprises a sealing gasket (102), a fixed ring plate (103), a plurality of second telescopic rods (104), a plurality of second springs (105), a sealing ring sheet (106); the sealing gasket (102) is arranged at the bottom of the sealing groove (51), has the same width as the sealing groove (51), and is annular; a fixed ring plate (103) is fixedly arranged in the middle of the upper part of the sealing gasket (102); the plurality of second telescopic rods (104) are respectively and fixedly arranged on two sides of the fixed ring plate (103), and the other ends of the second telescopic rods (104) on the inner side and the second telescopic rods (104) on the outer side of the fixed ring plate (103) are fixedly connected with sealing ring sheets (106); a second spring (105) is sleeved outside each second telescopic rod (104); one end of the second spring (105) is fixedly connected with the fixed ring plate (103), and the other end is fixedly connected with the sealing ring sheet (106).

4. A high pressure hard seal ball valve in accordance with claim 3 wherein the second springs (105) are each in a compressed state.

5. A high-pressure hard-sealing ball valve according to claim 3, wherein the sealing gasket (102) and the sealing ring plate (106) are made of rubber.

6. A high-pressure hard-seal ball valve according to claim 1, characterized in that the fixing mechanism (7) comprises a fixing ring seat (71), a threaded hole (72), a fixing screw (73); the fixed ring seat (71) is fixedly arranged right above the installation pipe (5); four threaded holes (72) are uniformly formed in the fixed ring seat (71); the fixing screw rod (73) penetrates through a transverse plate at the upper end of the valve rod (6) and then extends into the threaded hole (72); the fixing screw rod (73) is in threaded connection with the transverse plate and the threaded hole (72) to firmly fix the valve rod (6).

7. A high pressure hard seal ball valve according to claim 1, wherein the valve stem (6) is made of stainless steel.