CN211875153U - A flanged ball valve with good sealing performance - Google Patents

Abstract

The utility model discloses a flanged ball valve with good sealing performance, which comprises a flanged ball valve body and flanges at both ends of the flanged ball. A groove is formed on the surface of the pipe, a sliding plate is slidably connected between two sides of the inner wall of the groove, and a compression spring is fixedly connected to both sides of the bottom of the sliding plate, and the two compression springs are away from one end of the sliding plate Both are fixedly connected with the bottom of the inner wall of the groove, the top of the sliding plate is fixedly connected with a sealing gasket, and the opposite sides of the two flanges are fixedly connected with a support rod. The utility model relates to the technical field of flanged ball valves. The use of the elastic force of the compression spring and the sealing ring itself makes the sealing gasket and the sealing ring completely fit with the inner wall of the pipeline, so as to complete the sealing between the flanged ball valve and the pipeline, and the sleeve can be raised into the pipeline to further increase the sealing performance and prevent Give way.

Description

A flanged ball valve with good sealing performance

technical field

The utility model relates to the technical field of flanged ball valves, in particular to a flanged ball valve with good sealing performance.

Background technique

Ball valve and gate valve are the same type of valve, the difference is that its closing part is a sphere, and the sphere rotates around the center line of the valve body to achieve opening and closing. The ball valve is mainly used to cut off, distribute and change the flow direction of the medium in the pipeline. The flanged ball valve standard GB/T21465-2008 "Valve Terminology" is defined as: the opening and closing parts (balls) are driven by the valve stem and wrap around the valve. The shaft of the valve is a valve that rotates, and the ball valve can be closed tightly with only a 90-degree rotation and a small torque. The completely equal valve body cavity provides the medium with a small resistance and straight flow path. It is generally considered that the ball valve is most suitable for direct opening and closing, but the recent development has designed the ball valve to have the function of throttling and controlling the flow.

The traditional sealing method between the flanged ball valve and the water pipe is to install a sealing ring at the flange through hole of the flanged ball valve, but the length of the sealing ring is extended, resulting in poor sealing performance, which makes the ball valve repeatedly installed and disassembled during use. The delay hinders the use of the ball valve.

Utility model content

Aiming at the deficiencies of the prior art, the utility model provides a flanged ball valve with good sealing performance, which solves the problem of poor sealing performance of the connection between the flanged ball valve and the water pipe.

In order to achieve the above purpose, the present utility model is achieved through the following technical solutions: a flanged ball valve with good sealing performance, comprising a flanged ball valve body and flanges at both ends, and one side of the two flanges that are separated from each other. A sleeve is fixedly connected with each other, a groove is formed on the surface of the sleeve, a sliding plate is slidably connected between two sides of the inner wall of the groove, and a compression spring is fixedly connected on both sides of the bottom of the sliding plate, and One end of the two compression springs away from the sliding plate is fixedly connected to the bottom of the inner wall of the groove, and a sealing gasket is fixedly connected to the top of the sliding plate.

Further, the opposite sides of the two flanges are fixedly connected with support rods, the opposite ends of the two support rods are rotatably connected with telescopic rods, and the tops of the two telescopic rods are fixedly connected with vertical rods. The two vertical plates are penetrated with threaded rods, and the surfaces of the two threaded rods are threadedly connected with nuts.

Further, a sealing ring is installed on the surface of the two sleeves to increase the sealing performance.

Further, the number of the grooves is four groups, which are respectively opened on the top and bottom of the two sleeves, and the four grooves have the same structure and connection method.

Further, the number of the support rods and the telescopic rods is in multiple groups, and the number of threaded rods connected to each group of the support rods and the telescopic rods is the same as the number of screw holes of the flange.

Further, the minimum telescopic length of the telescopic rod is equal to the thickness of the two flanges after they are in close contact with each other.

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

The flanged ball valve with good sealing performance extends the sleeve into the inner cavity of the pipeline by aligning the flange of the pipeline with the flange of the flanged ball valve. The elastic force of the sealing ring itself makes the sealing gasket and the sealing ring completely fit with the inner wall of the pipeline, so as to complete the sealing between the flanged ball valve and the pipeline, and the sleeve can be lifted into the interior of the pipeline to further increase the sealing performance and prevent leakage. When aligning, rotate the telescopic rod to move the threaded rod, so that the threaded rod is aligned with the connecting hole of the flange, then disassemble the nut, insert the threaded rod into the connecting hole, and turn the nut to fix the flange, thereby fixing the flanged ball valve. It is connected to the pipeline, and the installation of telescopic rods and support rods enables the flange plate of the flanged ball valve body to install the threaded rod on it in advance, so as to achieve the purpose of convenient installation, and the setting of the telescopic rod can adapt to different thicknesses. Flange plate for increased versatility.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present utility model;

FIG. 2 is a partial enlarged structural schematic diagram of the position A in FIG. 1 of the present utility model.

In the figure: 1. Flange plate; 2. Sleeve; 3. Groove; 4. Sliding plate; 5. Extrusion spring; 6. Gasket; 7. Sealing ring; 8. Support rod; 9. Telescopic rod; 10. Vertical plate; 11. Threaded rod; 12. Nut.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

1-2, the present utility model provides a technical solution: a flanged ball valve with good sealing performance, comprising a flanged ball valve body and flanges 1 at both ends thereof, and a flanged ball valve 1 separated from the two flanges 1. Both sides are fixedly connected with a sleeve 2, a groove 3 is opened on the surface of the sleeve 2, a sliding plate 4 is slidably connected between the two sides of the inner wall of the groove 3, and a compression spring 5 is fixedly connected on both sides of the bottom of the sliding plate 4. , and the ends of the two compression springs 5 away from the sliding plate 4 are fixedly connected with the bottom of the inner wall of the groove 3, the top of the sliding plate 4 is fixedly connected with a gasket 6, and the inner wall of the pipeline squeezes the gasket 6 and the sealing ring 7, using The elastic force of the compression spring 5 and the sealing ring 7 makes the sealing gasket 6 and the sealing ring 7 completely fit with the inner wall of the pipeline, thereby completing the sealing between the flanged ball valve and the pipeline, and the sleeve 2 can be raised into the pipeline to further increase the sealing sex to prevent leakage.

The opposite sides of the two flanges 1 are fixedly connected with support rods 8, the opposite ends of the two support rods 8 are rotatably connected with telescopic rods 9, and the tops of the two telescopic rods 9 are fixedly connected with vertical plates 10. Each of the vertical plates 10 is penetrated with threaded rods 11, and the surfaces of the two threaded rods 11 are both threadedly connected with nuts 12. By means of the arrangement of the telescopic rods 9 and the support rods 8, the flange 1 of the flanged ball valve body can The threaded rod 11 is installed on it in advance to achieve the purpose of convenient installation.

A sealing ring 7 is installed on the surfaces of the two sleeves 2 to increase the sealing performance. The sealing ring 7 itself has a certain elasticity, so that the sealing ring 7 fits better with the inner wall of the pipeline.

The number of grooves 3 is four groups, which are respectively opened at the top and bottom of the two sleeves 2 two by two, and the structures and connection methods of the four grooves 3 are the same, which increases the sealing performance.

There are multiple groups of support rods 8 and telescopic rods 9 , and the number of threaded rods 11 connected to each group of support rods 8 and telescopic rods 9 is the same as the number of screw holes of the flange 1 , ensuring that the flange 1 can be completely fixed.

The minimum telescopic length of the telescopic rod 9 is equal to the thickness after the two flanges 1 are in close contact.

When in use, by aligning the flange plate of the pipeline with the flange plate 1 of the flanged ball valve, and then extending the sleeve 2 into the inner cavity of the pipeline, the inner wall of the pipeline squeezes the sealing gasket 6 and the sealing ring 7. The elastic force of the sealing ring 7 itself makes the sealing gasket 6 and the sealing ring 7 fully fit with the inner wall of the pipeline, so as to complete the sealing between the flanged ball valve and the pipeline, and the sleeve 2 can be lifted into the interior of the pipeline to further increase the sealing performance and prevent leakage. When the flange 1 is aligned, rotate the telescopic rod 9 to drive the threaded rod 11 to move, so that the threaded rod 11 is aligned with the connecting hole of the flange 1, then disassemble the nut 12, insert the threaded rod 11 into the connecting hole, and turn the nut 12 , so that the flange plate 1 is fixed, so that the flanged ball valve is connected to the pipeline, and the threaded rod 11 can be installed on the flange plate 1 of the flanged ball valve body in advance by using the settings of the telescopic rod 9 and the support rod 8, etc. The purpose of convenient installation is achieved, and the flanges 1 of different thicknesses can be adapted through the arrangement of the telescopic rod 9, thereby increasing the universality.

It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any relationship between these entities or operations. any such actual relationship or sequence exists. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass a non-exclusive inclusion such that a process, method, article or device that includes a list of elements includes not only those elements, but also includes not explicitly listed or other elements inherent to such a process, method, article or apparatus.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the within the protection scope of the present invention.

Claims (6)

1. The utility model provides a flange ball valve that leakproofness is good, includes flange ball valve body and ring flange (1) at its both ends, its characterized in that: two equal fixedly connected with sleeve pipe (2) in one side that ring flange (1) departed from, recess (3) are seted up on the surface of sleeve pipe (2), sliding plate (4) are connected with to slide between recess (3) inner wall both sides, the equal fixedly connected with extrusion spring (5) in both sides of sliding plate (4) bottom to the one end that sliding plate (4) were kept away from in two extrusion springs (5) all with the bottom fixed connection of recess (3) inner wall, the sealed pad (6) of top fixedly connected with of sliding plate (4).

2. The flange ball valve with good sealing performance as claimed in claim 1, wherein: two equal fixedly connected with bracing piece (8) in the relative one side of ring flange (1), two the one end that bracing piece (8) is relative all rotates and is connected with telescopic link (9), two the equal fixedly connected with riser (10) in top of telescopic link (9), two threaded rod (11), two are all run through in riser (10) the equal threaded connection in surface of threaded rod (11) has nut (12).

3. The flange ball valve with good sealing performance as claimed in claim 1, wherein: and sealing rings (7) for increasing the sealing property are arranged on the surfaces of the two sleeves (2).

4. The flange ball valve with good sealing performance as claimed in claim 1, wherein: the number of the grooves (3) is four, the grooves are respectively arranged at the top and the bottom of the two sleeves (2) in pairs, and the four grooves (3) are identical in structure and connection mode.

5. The flange ball valve with good sealing performance as claimed in claim 2, wherein: the number of the support rods (8) and the telescopic rods (9) is multiple, and the number of the threaded rods (11) connected with each group of support rods (8) and the telescopic rods (9) is the same as that of the screw holes of the flange plate (1).

6. The flange ball valve with good sealing performance as claimed in claim 2, wherein: the minimum telescopic length of the telescopic rod (9) is equal to the thickness of the two flange plates (1) after being attached tightly.

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