CN213808970U

CN213808970U - Ball valve with high sealing performance

Info

Publication number: CN213808970U
Application number: CN202022562878.8U
Authority: CN
Inventors: 成文荣
Original assignee: Suzhou Defel Automation Equipment Co ltd
Current assignee: Suzhou Defel Automation Equipment Co ltd
Priority date: 2020-11-09
Filing date: 2020-11-09
Publication date: 2021-07-27
Anticipated expiration: 2030-11-09

Abstract

The utility model discloses a ball valve of high leakproofness, include installation piece, ball valve body and set up in the top-lifting structure of ball valve body downside, the ball valve body sets up in the installation piece and rather than rotating the connection, the discharge orifice has been seted up to the axis upper end of ball valve body, is located and has seted up the second discharge orifice on the dead installation piece in discharge orifice, the diameter in second discharge orifice is less than the diameter in discharge orifice, is located and has seted up the mounting hole on the dead installation piece of ball valve body lower extreme, top-lifting structure sets up in the mounting hole, top-lifting structure includes sliding plate and second sliding plate, sliding connection between sliding plate and the installation piece, fixedly connected with second sealing washer all around of sliding plate, sliding plate's lower extreme has sliding connection's second sliding plate between the installation piece through flexible spring elastic connection. The utility model discloses a last top structure that sets up can increase the life of this device.

Description

Ball valve with high sealing performance

Technical Field

The utility model relates to a ball valve technical field especially relates to a ball valve of high leakproofness.

Background

Ball valve, the open-close piece (ball) is driven by the valve rod and rotates around the axis of the ball valve. The hard seal V-shaped ball valve can also be used for regulating and controlling fluid, wherein a V-shaped ball core of the hard seal V-shaped ball valve and a metal valve seat of the build-up welding hard alloy have strong shearing force, and the hard seal V-shaped ball valve is particularly suitable for media containing fibers, tiny solid particles and the like. The multi-way ball valve can flexibly control the confluence, the diversion and the switching of the flow direction of the medium on the pipeline, and can close any channel to connect the other two channels. The valve of this type should be generally installed horizontally in the pipeline. The ball valve is divided into: pneumatic ball valves, electric ball valves, manual ball valves; ball valves can cause wear of the body after long-term use, making them less sealed, resulting in a shorter life.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcomings existing in the prior art and providing a ball valve with high sealing performance.

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

a high-sealing ball valve comprises a mounting block, a ball valve body and a top structure arranged on the lower side of the ball valve body, wherein the ball valve body is arranged in the mounting block and is rotatably connected with the mounting block, the upper end of the central axis of the ball valve body is provided with a flow hole, the mounting block opposite to the flow hole is provided with a second flow hole, the diameter of the second flow hole is smaller than that of the flow hole, the mounting block opposite to the lower end of the ball valve body is provided with a mounting hole, the top structure is arranged in the mounting hole and comprises a sliding plate and a second sliding plate, the sliding plate is slidably connected with the mounting block, second sealing rings are fixedly connected around the sliding plate, the lower end of the sliding plate is elastically connected with the second sliding plate which is slidably connected between the mounting blocks through a flexible spring, and the lower end of the second sliding plate is rotatably connected with a second threaded rod which is in threaded connection with the mounting block, and a rotating handle is fixedly connected to the lower side of the second threaded rod.

As a further aspect of the present invention: the sliding plate is fixedly connected with an ejector block at one end opposite to the ball valve body, and a rubber pad is fixedly connected to the ejector block.

As a further aspect of the present invention: one side of the rubber pad, which is opposite to the ball valve body, is arc-shaped.

As a further aspect of the present invention: the ball valve comprises a ball valve body and is characterized in that a valve rod is arranged at the upper end of the ball valve body, a hexagonal groove is formed in the upper end of the ball valve body, the lower end of the valve rod is hexagonal, and therefore the ball valve can be clamped in the hexagonal groove and is located at the upper end of the hexagonal groove.

As a further aspect of the present invention: the upper end of the valve rod is fixedly connected with a cross rod, and an anti-slip pad is sleeved on the cross rod.

As a further aspect of the present invention: the installation structure comprises two positioning columns, a first sliding plate and a threaded rod, wherein the positioning columns are symmetrically arranged up and down, the first sliding plate is connected with the installation block in a sliding mode, one end of the threaded rod is connected with the first sliding plate in a rotating mode, the other end of the threaded rod penetrates through the installation block and is connected with the installation block in a threaded mode, positioning rods are connected to the upper side and the lower side of the first sliding plate in a sliding mode, first springs are sleeved on the positioning rods, and one side, away from the installation block, of each positioning column is an inclined plane.

As a further aspect of the present invention: the threaded rod is fixedly connected with a handle.

The utility model has the advantages that:

through the structure of going up that sets up, the ball valve body probably produces wearing and tearing after long-time the use during use for this device's sealing performance reduces, rotates through the rotation this moment and drives the second threaded rod rotatory, makes the second sliding plate rise, compresses flexible spring, makes the sliding plate rise, supports the ball valve body, drives the chucking between ball valve body upward movement and the installation piece afterwards, thereby guarantees its sealing performance, increases the life of this device.

Drawings

FIG. 1 is a schematic diagram of a high-sealing ball valve;

FIG. 2 is a schematic view of a high-sealing ball valve with a partial structure at B;

FIG. 3 is a schematic view of a hexagonal groove structure of a high-sealing ball valve

Fig. 4 is a schematic view of a portion of a high-sealing ball valve at a position a.

In the figure: the ball valve comprises a mounting block 1, a second flow hole 101, a mounting hole 102, a first sealing ring 2, a ball valve body 3, a valve rod 4, a non-slip mat 401, a flow hole 5, a hexagonal groove 501, a positioning column 6, a first sliding plate 601, a positioning rod 602, a first spring 603, a grip 604, a threaded rod 605, a sliding plate 7, a second sealing ring 701, a top block 702, a rotating handle 703, a rubber pad 704, a second sliding plate 705, a second threaded rod 706 and a flexible spring 707.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Example 1

Referring to fig. 1-3, a high-sealing ball valve comprises a mounting block 1, a ball valve body 3 and a top structure arranged on the lower side of the ball valve body 3, wherein the ball valve body 3 is arranged in the mounting block 1 and rotatably connected with the mounting block 1, a flow hole 5 is arranged at the upper end of the central axis of the ball valve body 3, a second flow hole 101 is arranged on the mounting block 1 opposite to the flow hole 5, the diameter of the second flow hole 101 is smaller than that of the flow hole 5, a mounting hole 102 is arranged on the mounting block 1 opposite to the lower end of the ball valve body 3, the top structure is arranged in the mounting hole 102, the top structure comprises a sliding plate 7 and a second sliding plate 705, the sliding plate 7 is slidably connected with the mounting block 1, a second sealing ring 701 is fixedly connected around the sliding plate 7, so that the device has better sealing performance, the lower end of the sliding plate 7 is elastically connected with the second sliding plate 705 slidably connected between the mounting blocks 1 through a flexible spring 707, the lower end of the second sliding plate 705 is rotatably connected with a second threaded rod 706 which is in threaded connection with the mounting block 1, and the lower side of the second threaded rod 706 is fixedly connected with a rotating handle 703; the working principle is as follows: the ball valve body 3 may be worn after long-term use, so that the sealing performance of the device is reduced, at the moment, the rotating handle 703 drives the second threaded rod 706 to rotate, the second sliding plate 705 is lifted, the flexible spring 707 is compressed, the sliding plate 7 is lifted, the ball valve body 3 is supported, and then the ball valve body 3 is driven to move upwards and be clamped between the mounting blocks 1, so that the sealing performance of the ball valve body 3 is ensured, and the service life of the device is prolonged.

Further, one end of the sliding plate 7, which faces the ball valve body 3, is fixedly connected with a top block 702, and a rubber pad 704 is fixedly connected to the top block 702, so that a buffering effect can be achieved in the process that the sliding plate 7 pushes the ball valve body 3 upwards.

Furthermore, the side of the rubber pad 704 facing the ball valve body 3 is arc-shaped, so that the contact area with the ball valve body 3 can be increased, and the pressure on the surface of the ball valve body can be reduced.

Example 2

Referring to fig. 4, this embodiment is compared in embodiment 1, still includes valve rod 4, hexagonal groove 501 has been seted up to the upper end of ball valve body 3, the lower extreme of valve rod 4 is the hexagon to can block in hexagonal groove 501, be located hexagonal groove 501 upper end first sealing washer 2 of fixedly connected with on the valve rod 4 increases the sealing performance of this device, can drive the rotation of ball valve body 3 through rotating valve rod 4, controls opening and shutting of this device.

Further, the upper end of the valve rod 4 is fixedly connected with a cross rod, and a 401 anti-slip pad is sleeved on the cross rod, so that the valve rod 4 can be conveniently rotated.

Example 3

Referring to fig. 4, in this embodiment, compared with embodiment 1, the ball valve with high sealing performance further includes mounting mechanisms disposed at left and right ends of the mounting block 1, where each of the mounting mechanisms includes two positioning columns 6, a first sliding plate 601 and a threaded rod 605, the two positioning columns 6 are disposed in a vertically symmetrical manner, the first sliding plate 601 is slidably connected to the mounting block 1, one end of the threaded rod 605 is rotatably connected to the first sliding plate 601, the other end of the threaded rod 605 penetrates through the mounting block 1 and is in threaded connection with the mounting block 1, positioning rods 602 are slidably connected to upper and lower sides of the first sliding plate 601, a first spring 603 is sleeved on the positioning rods 602, and one side of the positioning columns 6, which is far away from the mounting block 1, is an inclined surface; when installing installation piece 1, aim at the installation through-hole on the pipeline with reference column 6, when the installation through-hole and reference column 6 are not right, because the right-hand member of reference column 6 is the inclined plane will insert the installation through-hole automatically, first sliding plate 601 plays the effect of buffering, makes first sliding plate 601 support reference column 6 through rotatory threaded rod 605 afterwards, later insert the pin in the mounting hole of reference column 6 right-hand member can.

Further, a handle 604 is fixedly connected to the threaded rod 605, so that the threaded rod 605 can be rotated conveniently.

The above, only be the concrete implementation of the preferred embodiment 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, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The ball valve with high sealing performance comprises a mounting block (1), a ball valve body (3) and an upper jacking structure arranged on the lower side of the ball valve body (3), and is characterized in that the ball valve body (3) is arranged in the mounting block (1) and is rotationally connected with the mounting block, a flow hole (5) is formed in the upper end of the central axis of the ball valve body (3), a second flow hole (101) is formed in the mounting block (1) opposite to the flow hole (5), the diameter of the second flow hole (101) is smaller than that of the flow hole (5), a mounting hole (102) is formed in the mounting block (1) opposite to the lower end of the ball valve body (3), the upper jacking structure is arranged in the mounting hole (102), the upper jacking structure comprises a sliding plate (7) and a second sliding plate (705), the sliding plate (7) is in sliding connection with the mounting block (1), and second sealing rings (701) are fixedly connected around the sliding plate (7), the lower end of the sliding plate (7) is elastically connected with a second sliding plate (705) which is connected between the mounting blocks (1) in a sliding mode through a flexible spring (707), the lower end of the second sliding plate (705) is rotatably connected with a second threaded rod (706) which is connected with the mounting blocks (1) in a threaded mode, and the lower side of the second threaded rod (706) is fixedly connected with a rotating handle (703).

2. A high-sealing ball valve according to claim 1, wherein an end of the sliding plate (7) opposite to the ball valve body (3) is fixedly connected with an ejector block (702), and a rubber pad (704) is fixedly connected to the ejector block (702).

3. A high-sealing ball valve according to claim 2, characterized in that the side of the rubber pad (704) facing the ball valve body (3) is curved.

4. The high-sealing ball valve according to claim 1, wherein a valve rod (4) is arranged at the upper end of the ball valve body (3), a hexagonal groove (501) is formed at the upper end of the ball valve body (3), the lower end of the valve rod (4) is hexagonal so as to be clamped in the hexagonal groove (501), and a first sealing ring (2) is fixedly connected to the valve rod (4) at the upper end of the hexagonal groove (501).

5. A high-tightness ball valve according to claim 4, characterized in that a cross bar is fixedly connected to the upper end of the valve rod (4), and a non-slip mat (401) is sleeved on the cross bar.

6. The ball valve with high sealing performance according to claim 1, wherein the mounting block (1) is provided with mounting mechanisms at left and right ends, each mounting mechanism comprises a positioning column (6), a first sliding plate (601) and a threaded rod (605), the number of the positioning columns (6) is two, the positioning columns are arranged symmetrically up and down, the first sliding plate (601) is connected with the mounting block (1) in a sliding mode, one end of the threaded rod (605) is rotatably connected with the first sliding plate (601), the other end of the threaded rod (605) penetrates through the mounting block (1) and is connected with the mounting block in a threaded mode, positioning rods (602) are connected to upper and lower sides of the first sliding plate (601) in a sliding mode, first springs (603) are sleeved on the positioning rods (602), and one side, far away from the mounting block (1), of the positioning columns (6) is an inclined surface.

7. A high-tightness ball valve according to claim 6, characterized in that a handle (604) is fixedly connected to said threaded rod (605).