Adjusting valve rod fixing tool

Abstract

The invention discloses a door adjusting valve rod fixing tool which comprises a supporting frame and a positioning auxiliary rod, a force application ejector rod is arranged on the supporting frame and used for applying linear acting force to a target object, the positioning auxiliary rod is arranged on the supporting frame, the end, close to the supporting frame, of the positioning auxiliary rod is detachably connected with a connecting piece, and bolt fixing is adopted. The valve rod is firmly fixed through the jackscrew, equipment damage and personnel injury caused by excessive pressure in a system are prevented, a maintainer can more conveniently and rapidly disassemble the copper flexible part in the maintenance process, damage to the equipment in the disassembly and assembly process is reduced, safety and high efficiency are achieved, the service life is long, the production efficiency is improved, and safety and stability are improved.

Description

Technical Field

[0001] The present invention relates to the field of disassembly of regulating valve stems, and more particularly to a fixing tool for regulating valve stems. Background Art

[0002] During daily maintenance and defect elimination of unit equipment, when the electric head of an electric valve fails and needs to be repaired, or when the copper fittings of regulating valves and isolating valves need to be replaced, it is necessary to fix the valve stem to prevent the residual pressure inside the system from ejecting the valve stem and causing equipment damage and personal injury. Previously, a three-jaw puller was used to fix the valve stem of the electric valve. The claws of the three-jaw puller are hooked on the flange edge and are prone to slipping. Due to the possible residual pressure in the pipeline, for safety reasons, after fixing with the three-jaw puller, the copper fitting is then removed. The three-jaw puller is fixed on the flange edge of the valve and is not firmly fixed, and is prone to slipping under impact force, resulting in low safety and stability. Summary of the Invention

[0003] Therefore, the technical problem to be solved by the present invention is that: the claws of the three-jaw puller are hooked on the flange edge and are prone to slipping.

[0004] The above technical problem is solved by the following technical solutions: The present invention provides a fixing tool for a regulating valve stem, which includes,

[0005] A support frame, on which a force-applying ejector rod is provided for applying a linear force to the target object;

[0006] A positioning auxiliary rod is arranged on the support frame, and a connecting member is detachably connected to one end of the positioning auxiliary rod close to the support frame.

[0007] In a preferred embodiment of the fixing tool for the regulating valve stem of the present invention: the end of the positioning auxiliary rod away from the connecting member is provided with a thread.

[0008] In a preferred embodiment of the fixing tool for the regulating valve stem of the present invention: the end of the positioning auxiliary rod away from the connecting member is provided with a positioning convex block, and the outer side of the positioning convex block is designed as an inclined surface.

[0009] In a preferred embodiment of the fixing tool for the regulating valve stem of the present invention: a holding end is provided on the side of the support frame away from the positioning auxiliary rod, and a connecting groove is formed on the support frame.

[0010] In a preferred embodiment of the fixing tool for the regulating valve stem of the present invention: the support frame is connected to the positioning auxiliary rod through the connecting groove. The connecting groove extends from end A to end B. The A end of the connecting groove is close to the force-applying ejector rod, and the B end of the connecting groove is away from the force-applying ejector rod.

[0011] In a preferred embodiment of the valve rod fixing tool of the present invention: At least two connecting grooves are symmetrically arranged around the force-applying ejector rod.

[0012] In a preferred embodiment of the valve rod fixing tool of the present invention: The force-applying ejector rod is threadedly engaged with the internal thread on the support frame.

[0013] In a preferred embodiment of the valve rod fixing tool of the present invention: One end of the force-applying ejector rod is provided with an internal hexagonal groove for disassembly, and the other end of the force-applying ejector rod is provided with an anti-slip end.

[0014] In a preferred embodiment of the valve rod fixing tool of the present invention: The length of the force-applying ejector rod is greater than or equal to the length of the positioning auxiliary rod.

[0015] In a preferred embodiment of the valve rod fixing tool of the present invention: The maximum diameter of the connecting member is greater than the size of the connecting groove.

[0016] The beneficial effects of the present invention are as follows: Bolts are adopted for fixation, and the valve rod is firmly fixed by set screws, preventing damage to the equipment and injury to personnel caused by residual pressure inside the system. During the maintenance process, maintenance personnel can disassemble the copper fitting more conveniently and quickly, reducing damage to the equipment during the disassembly and assembly process, being safe and efficient, having a long service life, and improving production efficiency, increasing safety and stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below only relate to some embodiments of the present invention and do not limit the present invention. Among them:

[0018] Figure 1 Shows the overall structural schematic diagram of the present invention;

[0019] Figure 2 Shows the split structural schematic diagram of the connecting member and the positioning auxiliary rod;

[0020] Figure 3 Shows the internal structural schematic diagram of the connecting member. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] In order to enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below in conjunction with the specific embodiments and the drawings.

[0022] The terms used in the present invention are those general terms that are currently widely used in the art in consideration of the functions of the present invention. However, these terms may vary according to the intentions of those of ordinary skill in the art, precedents, or new technologies in the art. In addition, specific terms may be selected by the applicant, and in such cases, their detailed meanings will be described in the detailed description of the present invention. Therefore, the terms used in the specification should not be construed as simple names, but rather based on the meanings of the terms and the overall description of the present invention.

[0023] Referring to Figure 1 and Figure 2 , this embodiment provides a valve stem fixing tool, including a support frame 1, on which a force-applying ejector rod 2 is provided for applying a linear force to the target object, and a positioning auxiliary rod 3 is provided on the support frame 1. One end of the positioning auxiliary rod 3 close to the support frame 1 is detachably connected with a connecting member 4. The end of the positioning auxiliary rod 3 away from the connecting member 4 is provided with a thread, and a positioning convex block 31 is provided at the end of the positioning auxiliary rod 3 away from the connecting member 4. The outer side of the positioning convex block 31 is designed as an inclined surface. According to the sizes of the electric valve and the partition valve flange, a lead screw fixing device is made. The positioning auxiliary rod 3 set with the force-applying ejector rod 2 as the center is used for auxiliary positioning connection, and then the force-applying ejector rod 2 provided on the support frame 1 is used to disassemble the valve stem by rotating the force-applying ejector rod 2 downward. The force application direction of the force-applying ejector rod 2 is the same as the axial direction of the valve stem to be disassembled, and the path constraint direction is the same as the force application direction, both being the axial direction of the valve stem to be disassembled.

[0024] Refer to Figure 2 and Figure 3 , in an embodiment provided by the present application, a holding end 11 is provided on the side of the support frame 1 away from the positioning auxiliary rod 3. A connecting groove 12 is formed on the support frame 1. The support frame 1 is connected to the positioning auxiliary rod 3 through the connecting groove 12. The connecting groove 12 extends from end A to end B. The A end of the connecting groove 12 is close to the force-applying ejector rod 2, and the B end of the connecting groove 12 is away from the force-applying ejector rod 2. The connecting groove 12 is centered on the force-applying ejector rod 2 and is symmetrically provided with at least two. After the double-headed lead screw passes through the flange hole of the valve and the adjustable bolt hole of the lead screw fixing device, the valve stem is fixed firmly with a top screw, with high safety and stability. By using a gasket with a larger size and the connecting member 4 to move in the connecting groove 12, it is convenient to adapt to valve stems in more different positions, improving the application range of the device.

[0025] Refer to Figures 1 to 3, the force - applying ejector rod 2 is threadedly engaged with the internal thread on the support frame 1. One end of the force - applying ejector rod 2 is provided with an internal hexagonal groove for disassembly, and the other end of the force - applying ejector rod 2 is provided with an anti - slip end 21. The length of the force - applying ejector rod 2 is greater than or equal to the length of the positioning auxiliary rod 3. The maximum diameter of the connecting member 4 is greater than the size of the connecting groove 12. The positioning auxiliary rod 3 for connection is disassembled by the disassembly push rod 5 arranged inside the connecting member 4. The positioning auxiliary rod 3 cooperates with the magnetic attraction seat 43 inside the connecting member 4 to fix the positioning auxiliary rod 3 with different diameters, so as to improve the applicable range of the device.

[0026] During use, the positioning auxiliary rod 3 is connected to the connecting member 4 through the mounting end on one side of the positioning auxiliary rod 3. The positioning auxiliary rod 3 is fixed under the cooperation of the internal magnetic attraction seat and the clamping elastic piece. While the inward - inclined clamping elastic piece clamps the positioning auxiliary rod 3, the magnetic attraction seat also strengthens the stability after connection. After the positioning auxiliary rod 3 is connected to the valve seat, by adjusting the position of the connecting member 4, the position of the support frame 1 is fixed. After the force - applying ejector rod 2 is aligned with the valve rod to be disassembled, the force - applying ejector rod 2 is rotated downward and cooperates with the anti - slip end 21 to eject the valve rod, completing the disassembly work of the valve rod.

[0027] Finally, it should be pointed out that the methods and devices described in detail above are only examples, and those skilled in the art can modify these examples in different ways as long as they do not depart from the scope of the present invention.

Claims

1. A valve rod fixing tool, characterized in that: Including, a support frame (1), on which a force - applying ejector rod (2) is arranged for applying a linear force to an object; a positioning auxiliary rod (3), arranged on the support frame (1), and a connecting piece (4) is detachably connected to one end of the positioning auxiliary rod (3) close to the support frame (1).

2. The valve rod fixing tool according to claim 1, wherein: One end of the positioning auxiliary rod (3) far from the connecting piece (4) is provided with a thread.

3. The valve rod fixing tool according to claim 2, wherein: One end of the positioning auxiliary rod (3) far from the connecting piece (4) is provided with a positioning convex block (31), and the outer side of the positioning convex block (31) is designed with an inclined surface.

4. The valve rod fixing tool according to claim 1, characterized in that: On one side of the support frame (1) far from the positioning auxiliary rod (3), a holding end (11) is provided, and a connecting groove (12) is formed on the support frame (1).

5. The valve rod fixing tool according to claim 4, characterized in that: The support frame (1) is connected to the positioning auxiliary rod (3) through the connecting groove (12). The connecting groove (12) extends from end A to end B. End A of the connecting groove (12) is close to the force - applying ejector rod (2), and end B of the connecting groove (12) is far from the force - applying ejector rod (2).

6. The valve rod fixing tool according to claim 5, wherein: At least two connecting grooves (12) are symmetrically arranged with the force - applying ejector rod (2) as the center.

7. The valve rod fixing tool according to claim 1, characterized in that: The force - applying ejector rod (2) is in threaded connection with the internal thread on the support frame (1) through a thread.

8. The valve rod fixing tool according to claim 7, wherein: One end of the force - applying ejector rod (2) is provided with an internal hexagonal groove for disassembly, and the other end of the force - applying ejector rod (2) is provided with an anti - slip end (21).

9. The valve rod fixing tool according to claim 8, characterized in that: The length of the force - applying ejector rod (2) is greater than or equal to the length of the positioning auxiliary rod (3).

10. The valve rod fixing tool according to claim 1, characterized in that: The maximum diameter of the connecting piece (4) is greater than the size of the connecting groove (12).

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