CN210487257U

CN210487257U - Flange butterfly valve test tool

Info

Publication number: CN210487257U
Application number: CN201921934748.3U
Authority: CN
Inventors: 孙志国
Original assignee: Tianjin Jufu Fluid Control Equipment Co Ltd
Current assignee: Tianjin Jufu Fluid Control Equipment Co Ltd
Priority date: 2019-11-11
Filing date: 2019-11-11
Publication date: 2020-05-08
Anticipated expiration: 2029-11-11

Abstract

The utility model provides a flange butterfly valve test tool, which comprises a base station, wherein two test heads are correspondingly arranged on the base station, each test head comprises a corrugated pipe section, and two ends of each corrugated pipe section are respectively provided with a near-end flange connected with a flange on a butterfly valve body and a far-end flange connected with a pressurizing pipeline; the near-end flange and the far-end flange are respectively provided with a plurality of connecting holes; at least one test head is fixed on the driving mechanism, and the distance between the two test heads is adjusted through the driving mechanism. The utility model discloses in the experimental frock that the creation provided, the valve that awaits measuring can convenient and fast install between two test heads, and the unnecessary hard turn round of straining in the connection process has improved the life of frock, simultaneously, unnecessary adjusting of tight silk joint completely in the connection process, can realize reliable connection, has effectively alleviateed workman's burden.

Description

Flange butterfly valve test tool

Technical Field

The invention belongs to the technical field of valve production and manufacturing, and particularly relates to a flange butterfly valve test tool.

Background

The flange butterfly valve has simple structure, small volume and light weight, is composed of a few parts, and is widely applied to industries such as petrochemical industry, electric power, metallurgy, drainage, municipal construction and the like. The butterfly valve has been widely applied to various fields of social production due to stable performance, and under the prior art, when the butterfly valve is produced in batches, how to control the sealing quality of the butterfly valve becomes a very concern of manufacturers. In the existing detection operation steps, the operation of directly connecting the valve to the water pipe is not easy to realize, and the connection structure at one end of the water pipe is easy to damage after being used for many times, so that the detection result is influenced, therefore, a transition structure is necessary to be designed between the water pipe and the valve to be detected, so that the connection is convenient, and the service life is prolonged.

Disclosure of Invention

In view of the above, the invention provides a flange butterfly valve test tool aiming at overcoming the defects in the prior art, which is convenient for the connection of valves, and meanwhile, has long service life and is not easy to damage the water pipe end.

In order to achieve the purpose, the technical scheme of the invention is realized as follows:

a flange butterfly valve test tool comprises a base station, wherein two test heads are correspondingly arranged on the base station, each test head comprises a corrugated pipe section, and two ends of each corrugated pipe section are respectively provided with a near-end flange and a far-end flange, wherein the near-end flange is used for being connected with a flange on a butterfly valve body, and the far-end flange is connected with a pressurizing pipeline; the near-end flange and the far-end flange are respectively provided with a plurality of connecting holes;

at least one of the test heads is driven by a driving mechanism, and the distance between the two test heads is adjusted through the driving mechanism.

Furthermore, the connecting holes in the near-end flange are long holes, and the length direction of the long holes is arranged along the radial direction of the near-end flange.

Further, the driving mechanism adopts an electric cylinder or a hydraulic cylinder.

Furthermore, a sealing groove is formed in the surface of the near-end flange, and a sealing element is installed in the sealing groove.

Further, the surface of the far-end flange is provided with a sealing gasket.

Furthermore, the connecting holes on the near-end flange and the far-end flange are uniformly distributed along the center of the test head.

Furthermore, the middle part of the corrugated pipe section of the test head is fixedly provided with an installation block, and the installation block is fixed at the front end of an extension rod of the driving mechanism.

Compared with the prior art, the invention has the following advantages:

in the test tool provided by the invention, the valve to be tested can be conveniently and quickly arranged between the two test heads, the hard twisting is not required in the connection process, the service life of the tool is prolonged, meanwhile, the reliable connection can be realized without completely and strictly aligning the joint in the connection process, and the burden of workers is effectively reduced.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the invention without limitation. In the drawings:

FIG. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic view of a test head in an embodiment of the present invention;

fig. 3 is a schematic diagram of the invention in an application state.

Description of reference numerals:

1-base station; 2-a test head; 3-a corrugated pipe section; 4-a proximal flange; 5-a pressurized pipeline; 6-a distal flange; 7-connecting hole; 8-a drive mechanism; 9-a seal; 10-a seal gasket; 11-a bracket; 12-a scaffold; 13-valve to be tested.

Detailed Description

It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which are merely for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.

In the description of the invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be construed broadly, e.g. as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.

The invention will be described in detail with reference to the following embodiments with reference to the attached drawings.

A flange butterfly valve test tool is shown in figures 1 to 3 and comprises a base platform 1, two test heads 2 are correspondingly arranged on the base platform, generally, the test heads can be fixed on a bracket and supported by the bracket to form a certain distance with the surface of the base platform, so that the valve can be conveniently installed, fixed and tested,

the testing head comprises a corrugated pipe section 3, a near-end flange 4 used for being connected with a flange on the butterfly valve body and a far-end flange 6 connected with a pressurizing pipeline 5 (namely a water pipe for pressurizing) are respectively arranged at two ends of the corrugated pipe section, and a plurality of connecting holes 7 are respectively arranged on the near-end flange and the far-end flange;

generally, after the pressurizing pipeline and the far-end flange are connected and fixed, the pressurizing pipeline and the far-end flange do not need to be frequently disassembled, and only when the testing head at the position is damaged or sealed and leaked, the testing head is disassembled from the pressurizing pipeline for replacement or maintenance, namely, the testing head is used as a transition piece between a water pipe (pressurizing pipeline) and a valve to be tested.

Specifically, the test heads may be mounted on a support 12, and at least one support may be driven by a driving mechanism 8 to adjust the distance between the two test heads. Generally, the driving mechanism employs an electric cylinder or a hydraulic cylinder. In an alternative embodiment, the middle of the bellows section of the test head is fixed with a mounting block which is fixed at the front end of the extension rod of the driving mechanism. It should be noted that, when the middle of the bellows section of the test head is fixed to the bracket, the bellows structures on two sides of the bellows section are not limited while the bellows section is firmly fixed, and the near-end flange and the far-end flange can have slight adjusting spaces, so that the connection and the disassembly are convenient.

When the valve detection test is carried out, the test heads can be driven to act through the control driving mechanism, the distance between the test heads on two sides is adjusted, and therefore the valve detection test device is suitable for the installation and fixation requirements of valves with different (length) specifications, flexible and good in universality.

It should be noted that, because the test head main part adopts the bellows structure that has self-adaptation regulating power for the flange at bellows section both ends all can have the position adjustment ability of certain range according to actual installation and connection demand. That is, even if the valve to be tested and the test head have a certain (smaller amplitude) position or axial deviation, the connection can be smoothly realized, and the tool cannot be damaged. The structural design fully considers the use requirements of a production field, when in inspection, workers can realize connection without completely aligning the valve and the pipeline for testing in the traditional operation, so that the testing head with self-adjusting capability reduces the burden of the workers, meanwhile, the hard torsion is not required to be forcibly pulled in the connection process, and the service life of the tool is effectively prolonged.

In an optional embodiment, the connection holes on the proximal flange are long holes, the length direction of the long holes is arranged along the radial direction of the proximal flange, and the connection holes on the proximal flange and the connection holes on the distal flange are uniformly distributed along the center of the test head. Through designing the connecting hole into the slot hole, adopted the structural style that can drive the test head of adjustment through actuating mechanism in addition, the adaptation that can be fine is connected the needs, more convenient and flange joint on the valve.

Typically, a seal groove is provided in the surface of the proximal flange, and a seal 9 is mounted in the seal groove. The distal flange surface is provided with a seal 10. The tightness of the test head after being connected with the pressurizing pipeline and the valve to be tested is ensured.

In an optional embodiment, a bracket 11 may be disposed on the base station corresponding to a position between the two test heads, for supporting the valve 13 to be tested, so as to ensure stability of the valve during the test, reduce loads of the test heads and the pressurization pipeline, and improve service life. Specifically, the bracket can also be a lifting structure, so that the valve can be conveniently fixed at a proper height position.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the invention, so that any modifications, equivalents, improvements and the like, which are within the spirit and principle of the present invention, should be included in the scope of the present invention.

Claims

1. The utility model provides a flange butterfly valve test fixture which characterized in that: the test head comprises a corrugated pipe section, wherein a near-end flange used for being connected with a flange on a butterfly valve body and a far-end flange connected with a pressurizing pipeline are respectively arranged at two ends of the corrugated pipe section; the near-end flange and the far-end flange are respectively provided with a plurality of connecting holes;

2. The flange butterfly valve test tool of claim 1, characterized in that: the connecting holes in the near-end flange are long holes, and the length direction of the long holes is arranged along the radial direction of the near-end flange.

3. The flange butterfly valve test tool of claim 1, characterized in that: the driving mechanism adopts an electric cylinder or a hydraulic cylinder.

4. The flange butterfly valve test tool of claim 1, characterized in that: the surface of the near-end flange is provided with a sealing groove, and a sealing element is arranged in the sealing groove.

5. The flange butterfly valve test tool of claim 1, characterized in that: and a sealing gasket is arranged on the surface of the far-end flange.

6. The flange butterfly valve test tool of claim 1, characterized in that: and the connecting holes on the near-end flange and the far-end flange are uniformly distributed along the center of the test head.

7. The flange butterfly valve test tool of claim 1, characterized in that: and the middle part of the corrugated pipe section of the test head is fixedly provided with an installation block, and the installation block is fixed at the front end of an extension rod of the driving mechanism.