CN219255401U

CN219255401U - Valve rod torque tool

Info

Publication number: CN219255401U
Application number: CN202320299432.1U
Authority: CN
Inventors: 杨溢; 耿德占
Original assignee: Zhongke Aier Beijing Technology Co Ltd
Current assignee: Zhongke Aier Beijing Technology Co Ltd
Priority date: 2023-02-23
Filing date: 2023-02-23
Publication date: 2023-06-27
Anticipated expiration: 2033-02-23

Abstract

The utility model relates to a valve rod torque tool, which comprises: the first connecting piece is internally provided with a first through hole, the first through hole is a square through hole, the four vertex angles of the square through hole are all provided with arc structures, a spanner of the torque spanner with a number indicating function is embedded into the first through hole, and the spanner is limited and fixed by the arc structures; the second connecting piece is arranged at the bottom of the first connecting piece and is connected with the first connecting piece into a whole; the second connecting piece is internally provided with a second through hole, the end part of the valve rod to be installed is embedded into the second through hole, and the torque wrench transmits torsion to the valve rod through the first connecting piece and the second connecting piece. The utility model can enable the torsion provided by the torque wrench with the counting function to close the diaphragm valve, and the valve rod is not easy to damage and is convenient to operate.

Description

Valve rod torque tool

Technical Field

The utility model relates to the technical field of valve disassembly and assembly, in particular to a valve rod torque tool.

Background

When the diaphragm valve is installed, the valve stem needs to be screwed to a fixed torque to ensure that the diaphragm valve is closed. However, the conventional wrench or pliers are used for fastening the valve rod at present, but the conventional wrench or pliers have no moment counting function, and the wrench with the counting function cannot be directly applied to the valve rod, so that the problem that the valve rod cannot be closed due to insufficient screwing force of the valve rod or the valve rod is damaged due to overlarge screwing force is caused.

Disclosure of Invention

Aiming at the problems, the utility model aims to provide a valve rod torque tool which can enable a valve rod to bear torque provided by a torque wrench with a counting function to close a diaphragm valve, and the valve rod is not easy to damage and convenient to operate.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: a valve stem torque tooling, comprising: the first connecting piece is internally provided with a first through hole, the first through hole is a square through hole, the four vertex angles of the square through hole are all provided with arc structures, a spanner of a torque spanner with a number indicating function is embedded into the first through hole, and the spanner is limited and fixed by the arc structures; the second connecting piece is arranged at the bottom of the first connecting piece and is connected with the first connecting piece into a whole; the second connecting piece is internally provided with a second through hole, the end part of the valve rod to be installed is embedded into the second through hole, and the torque wrench transmits torque to the valve rod through the first connecting piece and the second connecting piece.

Further, the first connecting piece and the second connecting piece are integrally connected in a welding mode.

Further, the first connecting piece and the second connecting piece are both in cylindrical structures, and the diameters of the first connecting piece and the second connecting piece are the same.

Further, a protruding structure is arranged at the bottom of the first connection, and a groove corresponding to the protruding structure is arranged at the top of the second connection piece.

Further, a viewing aperture is provided in a side wall of the first connector.

Further, the number of the observation holes is two, the observation holes are positioned on the symmetrical side walls of the first connecting piece, and the two observation holes are communicated with the first through hole.

Further, a guide groove is formed in the top of the first through hole and located at the circumferential position of the wrench head inlet; the guide groove adopts a gradually-reduced structure from top to bottom.

Further, the section of the second through hole is composed of two straight line sections and two arc line sections, and the two arc line sections are respectively connected to two ends of the two straight line sections to form a flat through hole.

Further, the second through hole adopts a round hole.

Further, the inside wall in circular hole is provided with a plurality of cockscomb structure protruding, a plurality of cockscomb structure protruding edge the length direction equipartition of second through-hole.

Due to the adoption of the technical scheme, the utility model has the following advantages:

1. according to the utility model, the first connecting piece and the second connecting piece are used for conveniently connecting the torque wrench with the number indicating function to the end part of the valve rod to be installed or detached, the valve rod is installed in place under the set torque by the torque wrench, the diaphragm valve is closed, and meanwhile, the damage of the valve rod caused by the problems of uneven stress and the like is avoided.

2. The utility model can provide consistent torsion and greatly improve the consistency of the diaphragm valve products.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a valve stem torque tool employing a flat through hole in an embodiment of the utility model;

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 is a schematic diagram of a valve stem torque tool and valve stem assembly according to an embodiment of the present utility model;

FIG. 4 is a schematic diagram of the overall structure of a valve stem torque tool employing a circular through hole in an embodiment of the utility model;

FIG. 5 is a cross-sectional view of FIG. 4;

reference numerals:

1-first connecting piece, 2-first through hole, 3-second connecting piece, 4-second through hole, 5-observation hole, 6-guide way, 7-valve rod.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. All other embodiments, which are obtained by a person skilled in the art based on the described embodiments of the utility model, fall within the scope of protection of the utility model.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

In order to screw the valve rod to the fixed moment, adopt the special torque spanner with function of showing numbers, in order to make the valve rod bear force evenly and ensure the diaphragm valve to close, the utility model provides a valve rod torque frock, comprising: the first connecting piece is internally provided with a first through hole, the first through hole is a square through hole, the four vertex angles of the square through hole are all provided with arc structures, a spanner of the torque spanner with a number indicating function is embedded into the first through hole, and the spanner is limited and fixed by the arc structures; the second connecting piece is arranged at the bottom of the first connecting piece and is connected with the first connecting piece into a whole; the second connecting piece is internally provided with a second through hole, the end part of the valve rod to be installed is embedded into the second through hole, and the torque wrench transmits torsion to the valve rod through the first connecting piece and the second connecting piece. The utility model can enable the torsion provided by the torque wrench with the counting function to close the diaphragm valve, and the valve rod is not easy to damage and is convenient to operate.

In one embodiment of the present utility model, a valve stem torque tool is provided. In this embodiment, as shown in fig. 1 to 5, the valve rod torque tool includes:

the first connecting piece 1 is internally provided with a first through hole 2, the first through hole 2 is a square through hole, the four vertex angles of the square through hole are all provided with arc structures, a spanner of a torque spanner with a number indicating function is embedded into the first through hole 2, and the spanner is limited and fixed by the arc structures of the square through hole;

the second connecting piece 3 is arranged at the bottom of the first connecting piece 1 and is connected with the first connecting piece 1 into a whole; the second connecting piece 3 is internally provided with a second through hole 4, the end part of the valve rod 7 to be installed is embedded into the second through hole 4, and torque is transmitted to the valve rod 7 through the first connecting piece 1 and the second connecting piece 3 by a torque wrench.

When in use, as shown in fig. 3, a spanner of the torque wrench with the function of indicating number is inserted into the first through hole 2 of the first connecting piece 1, and the spanner is limited and fixed by the circular arc structures at the four top angles of the square through hole; the end of the valve rod 7 to be installed is inserted into the second through hole 4 of the second connecting piece 3, and the end of the valve rod 7 is limited and fixed by the second through hole 4. The torque wrench transmits torsion to the valve rod 7 through the first connecting piece 1 and the second connecting piece 3, the valve rod 7 is twisted tightly, and when the torsion indication of the torque wrench reaches a set value, the valve rod 7 is installed.

Alternatively, the first connecting piece 1 and the second connecting piece 3 are integrally connected by welding.

Alternatively, the first connector 1 and the second connector 3 have the same diameter; in order to guarantee the steadiness of connection, be provided with protruding structure in the bottom of first connection 1, the top of second connecting piece 3 is provided with the recess that corresponds with protruding structure, with protruding structure embedding recess in and welding, effectively improved the joint strength between the connecting piece two, avoid torque wrench transmission's torsion to destroy two connecting pieces, can transmit the torsion to valve rod 7 in real time.

In one possible embodiment, as shown in fig. 1 and 4, the first connector 1 and the second connector 3 each have a cylindrical structure, so as to facilitate setting of the internal through hole of each connector.

In a possible embodiment, the observation holes 5 are provided on the side walls of the first connection piece 1; the observation hole 5 is communicated with the first through hole 2, and whether the spanner is inserted into place can be observed through the observation hole 5, so that the phenomenon of slipping when the spanner is used due to the fact that the spanner is not inserted into place is avoided.

Alternatively, two observation holes 5 are provided, which are located on symmetrical side walls of the first connecting member 1, and both observation holes 5 are in communication with the first through hole 2.

In one possible embodiment, a guide groove 6 is provided at the top of the first through hole 2 at a circumferential position of the wrench inlet, as shown in fig. 2, 3 and 5. The guide groove 6 adopts a gradually-reduced structure from top to bottom, and the wrench head is embedded into the first through hole 2 through the guide groove 6, so that the problems of wrench head damage and the like caused by deviation of the embedding direction of the wrench head are effectively avoided.

In a possible embodiment, the shape of the second through hole 4 is arranged to match the shape of the valve stem 7 to be mounted. And the second through hole 4 is approximately tightly matched with the valve rod 7, so that torsion is effectively transmitted to the valve rod 7 to drive the valve rod 7 to be screwed tightly.

Alternatively, as shown in fig. 1 to 3, the cross section of the second through hole 4 is formed by two straight line sections and two arc sections, and the two arc sections are respectively connected to two ends of the two straight line sections to form a flat through hole so as to be installed in a matched manner with the oblate valve rod 7.

Optionally, as shown in fig. 4 and 5, the second through hole 4 is a circular hole, a plurality of zigzag protrusions are arranged on the inner side wall of the circular hole, and the plurality of zigzag protrusions are uniformly distributed along the length direction of the second through hole 4, so that the circular valve rod 7 is installed in a matched mode, and the valve rod 7 is locked and fixed through the plurality of zigzag protrusions.

When the locking device is used, corresponding tools are selected according to the shape of the valve rod 7, the end part of the valve rod 7 is inserted into the second through hole 4, and the end part of the valve rod 7 is locked and fixed by the second through hole 4; the torque wrench is inserted into the first through hole 2, and the wrench head is limited and fixed by the circular arc structure in the first through hole 2. The torque output by the torque wrench is transmitted to the valve rod 7 through the two connecting pieces to drive the valve rod 7 to rotate, and when the torque reaches the set torque according to the indication number on the torque wrench, the valve rod 7 is twisted tightly, so that the installation is completed. The utility model can provide consistent torsion for valve rods 7 of all diaphragm valves to be installed, and greatly improves the consistency of the diaphragm valve products.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. Valve rod moment of torsion frock, its characterized in that includes:

the first connecting piece is internally provided with a first through hole, the first through hole is a square through hole, the four vertex angles of the square through hole are all provided with arc structures, a spanner of a torque spanner with a number indicating function is embedded into the first through hole, and the spanner is limited and fixed by the arc structures;

the second connecting piece is arranged at the bottom of the first connecting piece and is connected with the first connecting piece into a whole; the second connecting piece is internally provided with a second through hole, the end part of the valve rod to be installed is embedded into the second through hole, and the torque wrench transmits torque to the valve rod through the first connecting piece and the second connecting piece.

2. The valve stem torque tool of claim 1, wherein the first connector and the second connector are integrally connected by welding.

3. The valve stem torque tool of claim 1, wherein the first connector and the second connector are cylindrical in configuration and have the same diameter.

4. A valve stem torque tooling as defined in claim 3, wherein the bottom of the first connection is provided with a raised structure and the top of the second connection is provided with a recess corresponding to the raised structure.

5. The valve stem torque tooling of claim 1, wherein the first connector has a viewing port disposed in a sidewall thereof.

6. The valve stem torque tool of claim 5, wherein there are two of said viewing holes located on symmetrical side walls of said first connector, and both of said viewing holes are in communication with said first through hole.

7. The valve stem torque tool as defined in claim 1, wherein a guide groove is provided at a top of the first through hole at a circumferential position of the wrench head inlet; the guide groove adopts a gradually-reduced structure from top to bottom.

8. The valve rod torque tool as set forth in claim 1, wherein the cross section of the second through hole is formed by two straight line segments and two arc line segments, and the two arc line segments are respectively connected to two ends of the two straight line segments to form a flat through hole.

9. The valve stem torque tool of claim 1, wherein the second through hole is a circular hole.

10. The valve rod torque tool as set forth in claim 9, wherein the inner side wall of the circular hole is provided with a plurality of saw-tooth-shaped protrusions, and the saw-tooth-shaped protrusions are uniformly distributed along the length direction of the second through hole.