CN210661464U

CN210661464U - Valve seat sealing structure of ball valve

Info

Publication number: CN210661464U
Application number: CN201921782410.0U
Authority: CN
Inventors: 肖雷
Original assignee: Jiangsu Youtuo Precision Technology Co Ltd
Current assignee: Jiangsu Youtuo Precision Technology Co Ltd
Priority date: 2019-10-23
Filing date: 2019-10-23
Publication date: 2020-06-02
Anticipated expiration: 2029-10-23

Abstract

The utility model provides a valve seat sealing structure of a ball valve, which relates to the technical field of ball valves and comprises a valve body, wherein the surface of the valve body is provided with a detachable structure, the detachable structure is fixedly connected with the surface of the valve body, the surface of one end of the valve body is provided with a water inlet, the water inlet penetrates through the side wall of the valve body, the end of the valve body, which is far away from the water inlet, is provided with a water outlet, the water outlet penetrates through the side wall of the valve body, the surface of the valve body is provided with a fastening device, the fastening device penetrates through the side wall of the valve body and is fixedly connected with the surface of the valve body, one side of the detachable structure is provided with a rotating structure, the rotating structure is fixedly connected with the surface of the valve body, the bottom end of the rotating structure is provided with a, adopt the detachable construction between cavity and the body, realize the inspection maintenance when the damage appears in the ball valve, dismantle simple and conveniently.

Description

Valve seat sealing structure of ball valve

Technical Field

The utility model relates to a ball valve technical field especially relates to a disk seat seal structure of ball valve.

Background

Ball valves are appeared in the 50 th of the 20 th century, and with the rapid development of ball valve science and technology and the continuous improvement of production technology and product structures, the ball valves are developed into main valves, are widely applied to industries such as petroleum refining, long-distance pipelines, chemical industry, papermaking, pharmacy, water conservancy, electric power, municipal administration, steel and the like, and play a significant role in national economy.

At present, after the ball valve on the market is used for a period of time, as long as the valve seat is abraded to a certain extent, the air tightness can not be ensured, maintenance personnel are required to replace the valve seat, the valve seat is abraded quickly, the replacement frequency is high, and the working efficiency is greatly reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the disk seat seal structure of a ball valve that proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a valve seat sealing structure of a ball valve comprises a valve body, wherein a detachable structure is arranged on the surface of the valve body and fixedly connected with the surface of the valve body, a water inlet is formed in the surface of one end of the valve body and penetrates through the side wall of the valve body, a water outlet is formed in the end, away from the water inlet, of the valve body and penetrates through the side wall of the valve body, a fastening device is arranged on the surface of the valve body and penetrates through the side wall of the valve body and is fixedly connected with the surface of the valve body, the fastening device comprises a fixing block fixedly connected with the surface of the valve body, a second bolt is arranged in the fixing block and is in threaded connection with the fixing block, a valve seat is arranged on the inner wall of the valve body and is fixedly connected with the surface of the valve body, one end, located inside the valve body, of the second bolt abuts, the bottom of revolution mechanic is equipped with stagnant water structure, and stagnant water structure runs through the valve body lateral wall and with valve body swing joint.

Preferably, the valve body comprises a cavity fixedly connected with the fastening device, a first flange is arranged at one end of the cavity and fixedly connected with the cavity, a pipe body is arranged at one end, far away from the first flange, of the cavity, and the cavity is connected with the pipe body through a flange.

Preferably, detachable construction is including establishing two second ring flanges at cavity and body junction, and two second ring flanges respectively with cavity and body fixed connection, be equipped with first bolt in the second ring flange, and first bolt and second ring flange swing joint, the surface nestification of first bolt has self-locking nut, and self-locking nut and first bolt threaded connection, and self-locking nut offsets with the second ring flange.

Preferably, revolution mechanic is including establishing the mounting in fastener one side, and mounting and cavity fixed surface are connected, be equipped with the connecting rod in the mounting, and the mounting inlays in the connecting rod surface, the connecting rod surface is equipped with the sliding sleeve, and sliding sleeve and connecting rod sliding connection, be equipped with the fastener in the sliding sleeve, and the fastener runs through sliding sleeve and mounting simultaneously, and fastener and sliding sleeve threaded connection, the sliding sleeve surface is equipped with the gasket, and the gasket inlays in the connecting rod surface, the gasket surface is equipped with the rotating member, and rotating member and gasket fixed connection, the rotating member surface is equipped with the handle, and handle and rotating member fixed connection.

Preferably, the stagnant water structure includes connecting rod bottom mounting's pivot, and pivot and valve body lateral wall threaded connection, the one end that the mounting was kept away from in the pivot is equipped with the spheroid, and spheroid and pivot fixed connection, and has seted up the through-hole in the spheroid, and the through-hole size is the same with the body internal diameter.

Preferably, the gasket is an annular iron sheet nested on the surface of the connecting rod, a right-angle baffle is arranged on the side face of the annular iron sheet, the part of the connecting rod, which is located inside the fixing piece, is a cylinder, and the part, which is located above the fixing piece, is a prism.

Advantageous effects

1. The utility model discloses in, adopt fastener, realize that the disk seat uses for a longer time, the change frequency of disk seat has been reduced, work efficiency is improved, after the disk seat uses for a long time, certain degree of wearing and tearing have appeared in the disk seat, the elasticity of rubber disk seat itself is not enough to form intact sealed, then can rotate the second bolt, the second bolt rotates in the fixed block, make the rubber disk seat obtain the ascending power of a spheroid and push away, make and can seal again between disk seat and the spheroid, the ball valve can continue to use, still can not realize when the leakproofness of disk seat until rotatory second bolt, just need consider to change the disk seat, the change frequency of disk seat has been reduced.

2. The utility model discloses in, adopt the detachable construction between cavity and the body, realize the inspection maintenance of ball valve when damaging appearing, dismantle simple and conveniently, rotatory self-locking nut takes off first bolt from the second ring flange, opens the second ring flange, and the spheroid of ball valve just exposes in the sight, and maintenance person can inspect the damaged condition of ball valve directly perceivedly, gives the maintenance method.

Drawings

Fig. 1 is a schematic perspective view of a valve seat sealing structure of a ball valve according to the present invention;

fig. 2 is a cross-sectional view of a valve seat sealing structure of a ball valve according to the present invention;

fig. 3 is an exploded view of a rotary structure in the valve seat sealing structure of the ball valve according to the present invention;

fig. 4 is the utility model provides a spatial structure schematic diagram of revolution mechanic in valve seat seal structure of ball valve.

Illustration of the drawings:

1. a valve body; 11. a first flange plate; 12. a cavity; 13. a pipe body; 2. a detachable structure; 21. a second flange plate; 22. a first bolt; 23. a self-locking nut; 3. a water inlet; 4. a water outlet; 5. a fastening device; 51. a fixed block; 52. a valve seat; 53. a second bolt; 6. a rotating structure; 61. a fixing member; 62. a connecting rod; 63. a sliding sleeve; 64. a fastener; 65. a gasket; 66. a rotating member; 67. a handle; 7. a water stopping structure; 71. a rotating shaft; 72. a sphere.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand, the present invention will be further explained below with reference to the following embodiments and the accompanying drawings, but the following embodiments are only the preferred embodiments of the present invention, and not all embodiments are included. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention.

Specific embodiments of the present invention will be described below with reference to the accompanying drawings.

The first embodiment is as follows:

referring to fig. 1-4, a valve seat sealing structure of a ball valve comprises a valve body 1, wherein a detachable structure 2 is arranged on the surface of the valve body 1, the detachable structure 2 is fixedly connected with the surface of the valve body 1, the detachable structure 2 comprises two second flange plates 21 arranged at the joint of a cavity 12 and a pipe body 13, the two second flange plates 21 are respectively fixedly connected with the cavity 12 and the pipe body 13, first bolts 22 are arranged in the second flange plates 21, the first bolts 22 are movably connected with the second flange plates 21, self-locking nuts 23 are nested on the surfaces of the first bolts 22, the self-locking nuts 23 are in threaded connection with the first bolts 22, the self-locking nuts 23 abut against the second flange plates 21, a water inlet 3 is arranged on the surface of one end of the valve body 1, the water inlet 3 penetrates through the side wall of the valve body 1, a water outlet 4 is arranged at the end of the valve body 1 far, the surface of the valve body 1 is provided with a fastening device 5, the fastening device 5 penetrates through the side wall of the valve body 1 and is fixedly connected with the surface of the valve body 1, the fastening device 5 comprises a fixing block 51 fixedly connected with the surface of the valve body 1, a second bolt 53 is arranged in the fixing block 51, the second bolt 53 is in threaded connection with the fixing block 51, the inner wall of the valve body 1 is provided with a valve seat 52, the valve seat 52 is fixedly connected with the surface of the valve body 1, one end, located inside the valve body 1, of the second bolt 53 abuts against the valve seat 52, the valve body 1 comprises a cavity 12 fixedly connected with the fastening device 5, one end of the cavity 12 is provided with a first flange plate 11, the first flange plate 11 is fixedly connected with the cavity 12, one end, far away from the first flange plate 11, of the.

One side of the detachable structure 2 is provided with a rotating structure 6, the rotating structure 6 is fixedly connected with the surface of the valve body 1, the rotating structure 6 comprises a fixing part 61 arranged at one side of the fastening device 5, the fixing part 61 is fixedly connected with the surface of the cavity 12, a connecting rod 62 is arranged in the fixing part 61, the fixing part 61 is embedded in the surface of the connecting rod 62, the part of the connecting rod 62 positioned in the fixing part 61 is a cylinder, the part of the connecting rod 62 positioned above the fixing part 61 is a prism, the surface of the connecting rod 62 is provided with a sliding sleeve 63, the sliding sleeve 63 is slidably connected with the connecting rod 62, a fastening piece 64 is arranged in the sliding sleeve 63, the fastening piece 64 penetrates through the sliding sleeve 63 and the fixing part 61 at the same time, the fastening piece 64 is in threaded connection with the sliding sleeve 63, the surface of the sliding sleeve 63 is provided with a gasket 65, the gasket 65 is embedded in, and rotating member 66 and gasket 65 fixed connection, rotating member 66 surface is equipped with handle 67, and handle 67 and rotating member 66 fixed connection, rotating structure 6's bottom is equipped with stagnant water structure 7, and stagnant water structure 7 runs through valve body 1 lateral wall and with valve body 1 swing joint, stagnant water structure 7 includes connecting rod 62 bottom mounting's pivot 71, and pivot 71 and valve body 1 lateral wall threaded connection, the one end that the mounting 61 was kept away from to pivot 71 is equipped with spheroid 72, and spheroid 72 and pivot 71 fixed connection, and seted up the through-hole in the spheroid 72, the through-hole size is the same with body 13 internal diameter.

The utility model discloses a theory of operation: when the ball valve is used, the handle 67 rotates relative to the connecting rod 62, the connecting rod 62 is embedded in the rotating part 66, the rotating part 66 is fixedly connected with the handle 67, the connecting rod 62 can rotate in the fixing part 61, the rotating shaft 71 fixedly connected with the connecting rod 62 also rotates, the ball 72 rotates in the cavity 12, the right-angle baffle plate on the side surface of the gasket 65 is blocked by the fastening part 64, namely the ball 72 just rotates only 90 degrees, the through hole in the ball 72 is matched with the inner diameter of the pipe body 13, the ball valve is opened, water can pass through the ball 72, the handle 67 rotates reversely again, the through hole in the ball 72 is perpendicular to the pipe body 13, the ball valve is closed, after the valve seat 52 is used for a long time, the valve seat 52 is worn to a certain degree, the elasticity of the rubber valve seat 52 is not enough to form a perfect seal, the second bolt 53 can be rotated, the second bolt 53 rotates in the fixing block 51, the rubber valve seat 52 is pushed by a force in the direction of the ball 72, the valve seat 52 and the ball 72 are sealed again, the ball valve can be used continuously, the valve seat 52 needs to be replaced only when the second bolt 53 is rotated to still not realize the sealing performance of the valve seat 52, the replacement frequency of the valve seat 52 is reduced, when the ball valve is damaged, the self-locking nut 23 is rotated, the first bolt 22 is taken down from the second flange 21, the second flange 21 is opened, the ball 72 of the ball valve is exposed in the sight line, a maintenance worker can visually check the damage condition of the ball valve, and a maintenance method is provided.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a disk seat seal structure of ball valve, includes valve body (1), its characterized in that: the valve body (1) surface is provided with a detachable structure (2), the detachable structure (2) is fixedly connected with the valve body (1), one end surface of the valve body (1) is provided with a water inlet (3), the water inlet (3) penetrates through the side wall of the valve body (1), one end of the valve body (1) far away from the water inlet (3) is provided with a water outlet (4), the water outlet (4) penetrates through the side wall of the valve body (1), the surface of the valve body (1) is provided with a fastening device (5), the fastening device (5) penetrates through the side wall of the valve body (1) and is fixedly connected with the surface of the valve body (1), the fastening device (5) comprises a fixed block (51) fixedly connected with the surface of the valve body (1), a second bolt (53) is arranged in the fixed block (51), the second bolt (53) is in threaded connection with the fixed block (51), the inner wall of the valve, and disk seat (52) and valve body (1) fixed surface are connected, and second bolt (53) are located inside one end of valve body (1) and offset with disk seat (52), one side of detachable construction (2) is equipped with revolution mechanic (6), and revolution mechanic (6) and valve body (1) fixed surface are connected, the bottom of revolution mechanic (6) is equipped with stagnant water structure (7), and stagnant water structure (7) run through valve body (1) lateral wall and with valve body (1) swing joint.

2. A valve seat sealing structure of a ball valve according to claim 1, wherein: the valve body (1) comprises a cavity (12) fixedly connected with a fastening device (5), a first flange plate (11) is arranged at one end of the cavity (12), the first flange plate (11) is fixedly connected with the cavity (12), a pipe body (13) is arranged at one end, far away from the first flange plate (11), of the cavity (12), and the cavity (12) is connected with the pipe body (13) through a flange.

3. A valve seat sealing structure of a ball valve according to claim 1, wherein: detachable structure (2) are including establishing two second ring flanges (21) at cavity (12) and body (13) junction, and two second ring flanges (21) respectively with cavity (12) and body (13) fixed connection, be equipped with first bolt (22) in second ring flange (21), and first bolt (22) and second ring flange (21) swing joint, the surface nestification of first bolt (22) has self-locking nut (23), and self-locking nut (23) and first bolt (22) threaded connection, and self-locking nut (23) offset with second ring flange (21).

4. A valve seat sealing structure of a ball valve according to claim 1, wherein: the rotating structure (6) comprises a fixing piece (61) arranged on one side of the fastening device (5), the fixing piece (61) is fixedly connected with the surface of the cavity (12), a connecting rod (62) is arranged in the fixing piece (61), the fixing piece (61) is embedded in the surface of the connecting rod (62), a sliding sleeve (63) is arranged on the surface of the connecting rod (62), the sliding sleeve (63) is slidably connected with the connecting rod (62), a fastening piece (64) is arranged in the sliding sleeve (63), the fastening piece (64) penetrates through the sliding sleeve (63) and the fixing piece (61) at the same time, the fastening piece (64) is in threaded connection with the sliding sleeve (63), a gasket (65) is arranged on the surface of the sliding sleeve (63), the gasket (65) is embedded in the surface of the connecting rod (62), a rotating piece (66) is arranged on the surface of the gasket (65), the rotating piece (66) is fixedly connected with the gasket (65), and the handle (67) is fixedly connected with the rotating piece (66).

5. A valve seat sealing structure of a ball valve according to claim 1, wherein: stagnant water structure (7) include connecting rod (62) bottom mounting's pivot (71), and pivot (71) and valve body (1) lateral wall threaded connection, the one end that mounting (61) were kept away from in pivot (71) is equipped with spheroid (72), and spheroid (72) and pivot (71) fixed connection, and has seted up the through-hole in spheroid (72), and the through-hole size is the same with body (13) internal diameter.

6. A valve seat sealing structure of a ball valve according to claim 4, wherein: the gasket (65) is an annular iron sheet nested on the surface of the connecting rod (62), a right-angle baffle is arranged on the side face of the annular iron sheet, the part, located inside the fixing piece (61), of the connecting rod (62) is a cylinder, and the part, located above the fixing piece (61), of the connecting rod is a prism.