CN217927151U

CN217927151U - Valve seat sealing mechanism for valve

Info

Publication number: CN217927151U
Application number: CN202221480276.0U
Authority: CN
Inventors: 马德福; 邹康辉; 李建设; 田秀龙; 李宝生
Original assignee: Henan Kaivalve Co ltd
Current assignee: Henan Kaivalve Co ltd
Priority date: 2022-06-14
Filing date: 2022-06-14
Publication date: 2022-11-29
Anticipated expiration: 2032-06-14

Abstract

The utility model discloses a disk seat sealing mechanism for valve, which comprises a valve body, the valve body can be dismantled and be connected with the valve gap, valve gap swing joint has the valve rod, the one end that the valve gap was kept away from to the valve rod is equipped with the case, the valve body is equipped with keeps apart clean ring, the one end of case with keep apart clean ring swing joint, the valve body is equipped with the disk seat, the other end of case passes through locating lever and disk seat sliding connection, the locating lever passes through locating part and disk seat cooperation connection. The sealing cleaning ring is arranged, when the valve is opened, the outer side of the valve core can be cleaned to a certain degree, and then the valve core enters the valve cavity above the isolating cleaning ring, so that the flushing and impact effects of media on the valve core are reduced; through setting up the locating lever for the valve carries out certain direction spacing to case and valve rod at the during operation, avoids closing case and valve rod and receives the vibration that the medium strikes the production, can reduce the wearing and tearing of case and valve rod.

Description

Valve seat sealing mechanism for valve

Technical Field

The utility model belongs to the technical field of the valve seal, especially, relate to a disk seat sealing mechanism for valve.

Background

The valve seat is one of the parts of the detachable surface in the valve, is used for supporting the valve core at the full-closed position and forming a sealing pair, and the diameter of the valve seat is the maximum flow diameter of the valve. Generally speaking, the tightness of the valve seat has a direct connection to the flow control effect of the valve, with the continuous improvement of the technical level of the valve, the sealing requirement of the valve in the market is continuously increased, and the sealing structure of the valve seat for the valve is not enough in the actual application process.

Among the prior art, common disk seat sealing mechanism for valve on the market, there are simple structure mostly, and the stable effect subalternation problem leads to the valve to use for a long time under the medium impact effect, and case and valve rod produce the phenomenon of vibration easily, and then aggravate the wearing and tearing of valve rod and case for seal structure appears leaking, thereby reduces the valve and to the control effect of fluid, influences the life of valve.

Therefore, a valve seat sealing mechanism for a valve is provided to solve the above problems.

SUMMERY OF THE UTILITY MODEL

To the above problem, the utility model provides a disk seat sealing mechanism for valve, the device can effectively protect and stabilize the direction to the case, reduces case and valve rod and receives the vibration condition that the medium strikes the production in the real work to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the valve seat sealing mechanism comprises a valve body, wherein a valve cover is detachably connected to the valve body, a valve rod is movably connected to the valve cover, a valve core is arranged at one end, away from the valve cover, of the valve rod, an isolation cleaning ring is arranged on the valve body, one end of the valve core is movably connected with the isolation cleaning ring, a valve seat is arranged on the valve body, the other end of the valve core is connected with the valve seat in a sliding mode through a positioning rod, and the positioning rod is connected with the valve seat in a matched mode through a limiting part.

Furthermore, the valve body is provided with a water inlet and a water outlet, the height of the water inlet is higher than that of the water outlet, the valve body is provided with a valve cavity, and the isolation cleaning ring is arranged at one end, close to the water inlet, of the valve cavity.

Furthermore, the valve core is provided with a limiting groove, the valve rod is connected with the limiting groove in a matched mode through a limiting block, and the upper portion, close to the limiting block, of the valve rod is connected with the limiting groove through an end cover and a limiting groove in a threaded mode.

Furthermore, one end of the valve core, which is far away from the limiting groove, is fixedly connected with a lug, and the lug is matched and connected with the valve seat through a sealing gasket.

Furthermore, the valve seat and the sealing gasket are provided with through holes, and the positioning rod is connected with the through holes in a sliding mode.

Further, the locating part includes gag lever post and spring, spring and disk seat sliding connection are passed through to the one end of gag lever post, the locating lever is equipped with the recess, the other end of gag lever post passes through-hole and groove fit connection.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a set up sealed clean ring for when the valve is opened, the case can carry out certain cleaning work after keeping apart clean ring position, later the case gets into the valve pocket of keeping apart clean ring top, reduces the case and receives the washing away of medium and assaults the effect, promotes the life of case and valve rod;

2. the utility model discloses a set up the locating lever for the valve carries out certain direction spacing to case and valve rod at the during operation, avoids closing case and valve rod and receives the vibration that the medium strikeed the production, reduces the wearing and tearing of case and valve rod, promotes the leakproofness and the life of disk seat.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;

fig. 3 is a schematic view of the connection structure of the middle valve rod and the valve core of the present invention.

In the figure: 1. a valve body; 11. a water inlet; 12. a water outlet; 13. a valve cavity; 2. a valve cover; 3. a valve stem; 31. a limiting block; 32. an end cap; 4. a valve core; 41. a limiting groove; 42. a bump; 5. isolating the cleaning ring; 6. a valve seat; 61. a through hole; 7. positioning a rod; 71. a groove; 8. a limiting member; 81. a limiting rod; 82. a spring; 9. and a gasket.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Referring to fig. 1-3, a valve seat 6 sealing mechanism for valve, including valve body 1, valve body 1 can be dismantled and is connected with valve gap 2, valve gap 2 swing joint has valve rod 3, it should be explained that valve body 1 is equipped with water inlet 11 and delivery port 12, the height dimension of water inlet 11 is higher than the height dimension of delivery port 12 for the medium carries out by the flow from top to bottom when the position of valve seat 6 is being passed through, reduce the impact effect of medium to valve seat 6, wherein, valve body 1 fixes through bolted connection's mode and valve gap 2, the one end that valve gap 2 is close to valve rod 3 is equipped with the filler ring of materials such as graphite, be used for guaranteeing the leakproofness between valve rod 3 and the valve gap 2.

Referring to fig. 3, the one end that valve gap 2 was kept away from to valve rod 3 is equipped with case 4, and it should be noted that case 4 is equipped with spacing groove 41, and stopper 31 and the cooperation of spacing groove 41 that valve rod 3 passes through the rectangle are connected, and end cover 32 and the 41 threaded connection of spacing groove are passed through to the top that valve rod 3 is close to stopper 31, specific connected mode: after the limiting block 31 and the limiting groove 41 are placed for limiting, the inner side of the end cover 32 is connected with the outer thread of the valve rod 3 through the inner thread, and the outer side of the end cover 32 is connected with the inner thread of the limiting groove 41 through the outer thread, so that the connection work between the valve rod 3 and the valve core 4 is realized.

Referring to fig. 1, the valve body 1 is provided with an isolation cleaning ring 5, one end of the valve core 4 is movably connected with the isolation cleaning ring 5, it should be noted that the valve body 1 is provided with a valve cavity 13, the isolation cleaning ring 5 is arranged at one end of the valve cavity 13 close to the water inlet 11, when the valve core 4 is opened in an ascending mode, a certain cleaning work can be performed on the peripheral side through the isolation cleaning ring 5, when the valve core 4 is completely opened, a certain isolation is performed through the isolation cleaning ring 5 and a medium below, and the scouring effect of the medium on the valve seat 6 is reduced.

Referring to fig. 1 and 3, the valve body 1 is provided with a valve seat 6, the other end of the valve element 4 is slidably connected with the valve seat 6 through a positioning rod 7, it should be noted that one end of the valve element 4, which is far away from the limiting groove 41, is fixedly connected with a projection 42, the projection 42 is connected with the valve seat 6 through a sealing gasket 9 in a matching manner, the sealing gasket 9 can buffer and seal the sealing of the valve element 4, and the sealing effect of the valve seat 6 is ensured while the valve element 4 is prevented from being in rigid contact with the valve seat 6.

Referring to fig. 2, the positioning rod 7 is connected with the valve seat 6 through the limiting member 8 in a matching manner, it is worth mentioning that the valve seat 6 and the sealing gasket 9 are both provided with through holes 61, the positioning rod 7 is connected with the through holes 61 in a sliding manner, and the positioning rod 7 can perform certain guiding work when the valve element 4 works, so that the vibration generated by medium impact on the valve element 4 and the valve rod 3 is reduced, and the abrasion of the valve element 4 and the valve rod 3 is reduced.

Specifically, the locating part 8 includes gag lever post 81 and spring 82, the disk seat 6 is equipped with the spout, spring 82 and spout sliding connection are passed through to gag lever post 81's one end, the locating lever 7 is equipped with recess 71, the other end of gag lever post 81 passes through-hole 61 and recess 71 cooperation is connected, it is spacing to make case 4 descend to a certain position through the block of gag lever post 81, promote the sealed effect of disk seat 6, gag lever post 81 can deviate from when case 4 opens under the exogenic action, do not influence the normal work of case 4.

Now, the operation principle of the present invention is described as follows:

in the utility model, when the valve is opened, the working personnel drives the valve core 4 to ascend through the valve rod 3, at the moment, the valve core 4 is guided to ascend through the positioning rod 7 until the valve core 4 enters the valve cavity 13 above the isolation cleaning ring 5 after the cleaning work of the isolation cleaning ring 5, and the valve core 4 is reduced from being washed by media; when the valve is closed, the staff drives the valve rod 3 to drive the valve core 4 to descend until the convex block 42 of the valve core 4 is matched with the sealing gasket 9 of the valve seat 6, the convex block is clamped and limited by the limiting rod 81 when the positioning rod 7 slides in the through hole 61, and then the locking effect (the locking effect can be removed through the normal switch valve) on the valve seat 6 to a certain degree is generated, so that the sealing performance of the valve seat 6 is effectively improved.

The above, only be the embodiment of the preferred of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, which are designed to be replaced or changed equally, all should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a disk seat sealing mechanism for valve, includes valve body (1), its characterized in that, valve body (1) can be dismantled and be connected with valve gap (2), valve gap (2) swing joint has valve rod (3), the one end that valve gap (2) were kept away from in valve rod (3) is equipped with case (4), valve body (1) is equipped with keeps apart clean ring (5), the one end and the clean ring (5) swing joint of isolation of case (4), valve body (1) is equipped with disk seat (6), the other end of case (4) passes through locating lever (7) and disk seat (6) sliding connection, locating lever (7) are connected through locating part (8) and disk seat (6) cooperation.

2. The valve seat sealing mechanism for the valve is characterized in that the valve body (1) is provided with a water inlet (11) and a water outlet (12), the height dimension of the water inlet (11) is higher than that of the water outlet (12), the valve body (1) is provided with a valve cavity (13), and the isolating and cleaning ring (5) is arranged at one end, close to the water inlet (11), of the valve cavity (13).

3. The valve seat sealing mechanism for the valve according to claim 1, wherein the valve core (4) is provided with a limiting groove (41), the valve rod (3) is connected with the limiting groove (41) through a limiting block (31) in a matching manner, and the upper part of the valve rod (3) close to the limiting block (31) is connected with the limiting groove (41) through an end cover (32) in a threaded manner.

4. The valve seat sealing mechanism for the valve according to claim 3, wherein a projection (42) is fixedly connected to one end of the valve core (4) far away from the limiting groove (41), and the projection (42) is in fit connection with the valve seat (6) through a sealing gasket (9).

5. The valve seat sealing mechanism for the valve is characterized in that the valve seat (6) and the sealing gasket (9) are provided with through holes (61), and the positioning rod (7) is connected with the through holes (61) in a sliding mode.

6. The valve seat sealing mechanism for the valve according to claim 5, wherein the limiting member (8) comprises a limiting rod (81) and a spring (82), one end of the limiting rod (81) is slidably connected with the valve seat (6) through the spring (82), the positioning rod (7) is provided with a groove (71), and the other end of the limiting rod (81) is connected with the groove (71) through the through hole (61) in a matching manner.