Special tool for disassembling and assembling soft sealing high-pressure thermocouple

Abstract

The utility model provides a special tool for dismounting and mounting a soft sealing high-pressure thermocouple, which comprises a hollow main shaft and a hollow connector, the hollow connector is fixed above the hollow main shaft, a mounting head is mounted above the hollow connector, a rotating nut is mounted in the middle of the hollow main shaft, and a handle is arranged on the right side of the rotating nut. A labor-saving rotating component is arranged below the rotating nut, threads are arranged on the outer wall of the hollow main shaft, an inner threaded groove is formed in the inner wall of the hollow main shaft, and the rotating nut is rotationally connected with the hollow main shaft through the threads. Compared with the prior art, the utility model has the following beneficial effects: by arranging the hollow main shaft, the mounting head, the hollow connector, the rotating nut and the handle, the dismounting and mounting operation of the soft sealing thermocouple can be conveniently carried out, and the device has the characteristics of portability, safety, rapidness and easiness in operation, and can be applied to the dismounting operation of other thermocouples with the same structure type.

Description

Technical Field

[0001] The utility model belongs to the technical field of soft-sealed high-voltage thermocouple disassembly and assembly, and particularly relates to a special tool for disassembly and assembly of soft-sealed high-voltage thermocouples. Background Art

[0002] The existing high-pressure buffer tank thermocouple is inserted into the equipment body and then tightened with a locking nut. Currently, when disassembling, the thermocouple is clamped with pliers by hand to pull it out. Since the gap between the thermocouple and the equipment body is very small and the clamping force is very large, the soft seal expands and it is difficult to pull it out. When the equipment cools down, the polymer will stick to the thermocouple, making it even more difficult to pull it out. The operation must be performed before the equipment cools down, which brings the risk of high-temperature burns. Sometimes the thermocouple will break when it is removed. The online removal of the residual thermocouple is labor-intensive and difficult, and it is easy to damage the sealing surface of the equipment body. Once the sealing surface of the equipment body is damaged, high-pressure ethylene will leak out, posing a risk of explosion, seriously affecting the safe operation of the device. If the pressure buffer tank is taken offline for replacement, the workload will increase by at least 12 hours, delaying the maintenance time. In order to solve this problem, we have now developed a special tool for disassembling and assembling soft-seal high-pressure thermocouples. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model aims to provide a special tool for disassembling and assembling a soft-sealed high-pressure thermocouple to solve the problems raised in the above-mentioned background technology.

[0004] The utility model is realized by the following technical scheme: a special tool for disassembling and assembling a soft-sealed high-pressure thermocouple, comprising: a hollow main shaft and a hollow connecting head, a hollow connecting head is fixed on the top of the hollow main shaft, and a mounting head is installed on the top of the hollow connecting head;

[0005] A rotating nut is installed in the middle of the hollow main shaft, a handle is provided on the right side of the rotating nut, a labor-saving rotating component is provided below the rotating nut, a thread is provided on the outer wall of the hollow main shaft, an inner thread groove is provided on the inner wall of the hollow main shaft, and the rotating nut is rotatably connected to the hollow main shaft through the thread;

[0006] The labor-saving rotating component includes a hollow outer ring, a rotating cavity and a limiting rotating ring. A rotating cavity is opened inside the hollow outer ring, a limiting rotating ring is arranged above the rotating cavity, a plurality of rotating balls are arranged in the middle of the rotating cavity, an annular groove is opened on the lower surface of the limiting rotating ring and the lower part of the rotating cavity, and an anti-slip pad is installed on the lower surface of the hollow outer ring. The wiring and protective sleeve of the thermocouple are inserted into the hollow main shaft, the inner screw groove inside the lower end of the hollow main shaft is connected to the thermocouple through threaded rotation, and then the rotating nut is installed on the hollow main shaft. Then, the nut is rotated by using the handle so that the hollow outer ring at the lower end of the rotating nut supports the equipment body and rotates counterclockwise. At the same time, the hollow main shaft can rise in the rotating nut, and the thermocouple can be pulled out of the equipment at the same time.

[0007] As a preferred embodiment, a mounting hole is provided in the middle of each of the four sides of the rotating nut, and a round joint is installed at the left end of the handle.

[0008] As a preferred embodiment, the outer wall of the round joint and the outer wall of the hollow connector are also provided with threads, and the inner wall of the mounting hole, the inner wall of the hollow connector and the inner wall of the mounting head are also provided with internal thread grooves.

[0009] As a preferred embodiment, the upper end of the hollow connecting head is connected to the mounting head by a threaded rotation, the handle is connected to the mounting hole by a threaded rotation through a round joint, the thermocouple soft sealing gasket and the copper gasket are installed on the thermocouple, the wiring and protective tube are inserted into the hollow main shaft through the hollow connecting head from one side of the mounting head, the special tool is rotated as a whole, the mounting head at the other end is used as a guide, the thermocouple is positioned and inserted into the equipment body using the mounting head, and then the rotating nut is installed on the hollow main shaft, and then the rotating nut is rotated using the handle to make the rotating nut drop on the outside of the hollow main shaft, so that the thermocouple can be pressed into place.

[0010] As a preferred embodiment, the lower end of the rotating nut extends into the hollow outer ring and is connected to the upper surface of the limiting rotating ring, and the plurality of rotating balls are distributed in a ring shape when viewed from above.

[0011] As a preferred embodiment, the plurality of rotating balls are made of stainless steel, and the upper end of each rotating ball extends into the annular groove on the lower surface of the limit rotating ring. When the rotating nut is rotated, the rotating nut can drive the limit rotating ring to rotate. At the same time, the rotation of the limit rotating ring drives the plurality of rotating balls to slide flexibly in the upper and lower annular grooves, thereby making the rotation of the rotating nut smoother and more labor-saving.

[0012] As a preferred embodiment, the lower end of each rotating ball extends into the annular groove below the inner part of the rotating chamber, and the lower surface of the anti-skid pad is provided with anti-skid stripes, and the anti-skid pad is made of wear-resistant rubber material.

[0013] After adopting the above technical solution, the beneficial effects of the utility model are: by providing a hollow main shaft, a mounting head, a hollow connecting head, a rotating nut and a handle, it is possible to facilitate the removal and installation of a soft-sealed thermocouple, and it has the characteristics of being portable, safe, fast and easy to operate, and can also be applied to the removal and installation of other thermocouples of the same structural type;

[0014] By setting up a labor-saving rotating component and making the lower surface of the hollow outer ring contact with the equipment body, the rotating nut can drive the limit rotating ring to rotate under the support of the equipment body. When the limit rotating ring rotates, it can drive multiple rotating balls to roll in the upper and lower slide grooves, thereby making the rotation of the rotating nut smoother and more labor-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 The utility model is a schematic diagram of the overall structure of a special tool for disassembling and assembling a soft-sealed high-pressure thermocouple.

[0017] Figure 2 The utility model is a schematic diagram of the disassembly state of the installation head in the special tool for disassembly and assembly of soft-seal high-pressure thermocouple.

[0018] Figure 3 The utility model is a structural schematic diagram of a handle in a special tool for disassembling and assembling a soft-sealed high-pressure thermocouple.

[0019] Figure 4 It is a schematic diagram of the front view of the inside of a hollow outer ring in a special tool for disassembling and assembling a soft-sealed high-pressure thermocouple according to the utility model.

[0020] Figure 5 It is a schematic diagram of a top view of the interior of a hollow outer ring in a special tool for disassembling and assembling a soft-seal high-pressure thermocouple according to the utility model.

[0021] In the figure, 100-hollow main shaft, 200-hollow connecting head, 300-mounting head, 400-handle, 500-rotating nut, 600-mounting hole, 700-labor-saving rotating component, 701-hollow outer ring, 702-rotating cavity, 703-limited rotating ring, 704-rotating ball, 705-annular groove, 800-round joint. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figures 1 to 5 The utility model provides a technical solution: a special tool for disassembling and assembling a soft-sealed high-pressure thermocouple, comprising: a hollow main shaft 100 and a hollow connecting head 200, the hollow main shaft 100 is fixed with the hollow connecting head 200, and the hollow connecting head 200 is installed with a mounting head 300;

[0024] A rotating nut 500 is installed in the middle of the hollow main shaft 100, a handle 400 is arranged on the right side of the rotating nut 500, a labor-saving rotating component 700 is arranged below the rotating nut 500, a thread is arranged on the outer wall of the hollow main shaft 100, an inner thread groove is arranged on the inner wall of the hollow main shaft 100, and the rotating nut 500 is rotatably connected with the hollow main shaft 100 through the thread;

[0025] The labor-saving rotating component 700 includes a hollow outer ring 701, a rotating cavity 702 and a limited rotating ring 703. The rotating cavity 702 is opened inside the hollow outer ring 701, and a limited rotating ring 703 is arranged above the rotating cavity 702. A plurality of rotating balls 704 are arranged in the middle of the rotating cavity 702. An annular groove 705 is opened on the lower surface of the limited rotating ring 703 and the lower part of the rotating cavity 702. An anti-slip pad is installed on the lower surface of the hollow outer ring 701. The wiring and protective sleeve of the thermocouple are inserted into the hollow main shaft 100, and the inner screw groove inside the lower end of the hollow main shaft 100 is connected to the thermocouple through threaded rotation. Then, the rotating nut 500 is installed on the hollow main shaft 100, and then the nut 500 is rotated by using the handle 400 so that the hollow outer ring 701 at the lower end of the rotating nut 500 is against the device body and then rotated counterclockwise. At the same time, the hollow main shaft 100 can rise in the rotating nut 500, and the thermocouple is pulled out from the device.

[0026] A mounting hole 600 is provided in the middle of each of the four sides of the rotating nut 500 , and a round joint 800 is installed at the left end of the handle 400 .

[0027] The outer wall of the round connector 800 and the outer wall of the hollow connector 200 are also provided with threads, and the inner wall of the mounting hole 600, the inner wall of the hollow connector 200 and the inner wall of the mounting head 300 are also provided with internal thread grooves.

[0028] The upper end of the hollow connecting head 200 is connected to the mounting head 300 by threaded rotation, the handle 400 is connected to the mounting hole 600 by threaded rotation through the round joint 800, the thermocouple soft sealing gasket and the copper gasket are installed on the thermocouple, the wiring and protection tube are inserted into the hollow main shaft 100 through the hollow connecting head 200 from one side of the mounting head 300, the special tool is turned 180 degrees as a whole, and the mounting head 300 at the other end is used as a guide. The thermocouple is positioned and inserted into the equipment body using the mounting head 300, and then the rotating nut 500 is installed on the hollow main shaft 100, and then the rotating nut 500 is rotated using the handle 400 to make the rotating nut 500 drop outside the hollow main shaft 100, so that the thermocouple can be pressed into place.

[0029] The lower end of the rotating nut 500 extends into the hollow outer ring 701 and is connected to the upper surface of the limiting rotating ring 703. The plurality of rotating balls 704 are distributed in a ring shape when viewed from above.

[0030] The multiple rotating balls 704 are all made of stainless steel, and the upper end of each rotating ball 704 extends into the annular groove 705 on the lower surface of the limiting rotating ring 703. When the rotating nut 500 is rotated, the rotating nut 500 can drive the limiting rotating ring 703 to rotate. At the same time, the rotation of the limiting rotating ring 703 drives the multiple rotating balls 704 to slide flexibly in the upper and lower annular grooves 705, thereby making the rotation of the rotating nut 500 smoother and more labor-saving.

[0031] The lower end of each rotating ball 704 extends into the annular groove 705 at the lower bottom of the rotating cavity 702. The lower surface of the anti-skid pad is provided with anti-skid stripes, and the anti-skid pad is made of wear-resistant rubber material.

[0032] Example 1: Please refer to Figure 1 , Figure 2 as well as Figure 3 When the soft-sealed high-pressure thermocouple needs to be removed, remove the thermocouple locking nut, insert the thermocouple wiring and protective sleeve into the hollow main shaft 100, and connect the inner screw groove inside the lower end of the hollow main shaft 100 to the thermocouple through threaded rotation, and then install the rotating nut 500 on the hollow main shaft 100, and then use the handle 400 to rotate the nut 500, so that the hollow outer ring 701 at the lower end of the rotating nut 500 is against the device body and rotated counterclockwise, and at the same time, the hollow main shaft 100 can rise in the rotating nut 500, and the thermocouple is pulled out of the device;

[0033] When the soft-sealed high-pressure thermocouple needs to be installed, the thermocouple soft-sealed gasket and the copper gasket are installed on the thermocouple, the wiring and the protective tube are inserted into the hollow main shaft 100 from one side of the installation head 300 through the hollow connector 200, the special tool is turned 180 degrees as a whole, and the installation head 300 at the other end is used as a guide. The thermocouple is positioned and inserted into the equipment body using the installation head 300, and then the rotating nut 500 is installed on the hollow main shaft 100, and then the rotating nut 500 is rotated by the handle 400 to make the rotating nut 500 drop outside the hollow main shaft 100, so that the thermocouple can be pressed into place, and finally locked and fixed with the thermocouple locking nut;

[0034] Through the above steps, the final effect is that the disassembly and installation of the soft-sealed thermocouple can be facilitated, and it has the characteristics of portability, safety, speed and easy operation. At the same time, it can be applied to the disassembly and assembly of thermocouples of other same structural types, and the components can be replaced according to the different thread requirements of the thermocouples. Different diameters and internal and external threads can be applicable. At the same time, the use of special disassembly and assembly tools can improve the efficiency and safety of the disassembly and assembly of the thermocouples, and has a protective function for the sealing surface of the high-voltage equipment body.

[0035] Example 2: Please refer to Figure 1 , Figure 2 , Figure 4 as well as Figure 5 According to the further explanation of the first embodiment, when the hollow outer ring 701 contacts the device body, the anti-skid pad can increase the friction of the hollow outer ring 701, so that the hollow outer ring 701 is not easy to slide. While rotating the rotating nut 500, the rotating nut 500 can drive the limiting rotating ring 703 to rotate. At the same time, the rotation of the limiting rotating ring 703 drives multiple rotating balls 704 to slide flexibly in the upper and lower annular grooves 705, thereby making the rotation of the rotating nut 500 smoother and more labor-saving.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A special tool for disassembling and assembling a soft-sealed high-pressure thermocouple, comprising: A hollow main shaft (100) and a hollow connecting head (200), wherein the hollow main shaft (100) is fixed with the hollow connecting head (200) above, and is characterized in that: a mounting head (300) is mounted above the hollow connecting head (200); A rotating nut (500) is installed in the middle of the hollow main shaft (100), a handle (400) is arranged on the right side of the rotating nut (500), a labor-saving rotating component (700) is arranged below the rotating nut (500), the outer wall of the hollow main shaft (100) is provided with a thread, the inner wall of the hollow main shaft (100) is provided with an inner thread groove, and the rotating nut (500) is rotatably connected to the hollow main shaft (100) through the thread; The labor-saving rotating component (700) comprises a hollow outer ring (701), a rotating cavity (702) and a position-limiting rotating ring (703); a rotating cavity (702) is provided inside the hollow outer ring (701); a position-limiting rotating ring (703) is provided above the rotating cavity (702); a plurality of rotating balls (704) are provided in the middle of the rotating cavity (702); an annular groove (705) is provided on the lower surface of the position-limiting rotating ring (703) and the lower part of the rotating cavity (702); and an anti-slip pad is installed on the lower surface of the hollow outer ring (701).

2. A special tool for disassembling and assembling a soft-sealed high-pressure thermocouple according to claim 1, characterized in that: A mounting hole (600) is provided in the middle of each of the four sides of the rotating nut (500), and a round joint (800) is installed at the left end of the handle (400).

3. A special tool for disassembling and assembling a soft-sealed high-pressure thermocouple according to claim 2, characterized in that: The outer wall of the round joint (800) and the outer wall of the hollow connector (200) are also provided with threads, and the inner wall of the mounting hole (600), the inner wall of the hollow connector (200) and the inner wall of the mounting head (300) are also provided with internal thread grooves.

4. A special tool for disassembling and assembling a soft-sealed high-pressure thermocouple according to claim 3, characterized in that: The upper end of the hollow connector (200) is rotatably connected to the mounting head (300) via a thread, and the handle (400) is rotatably connected to the mounting hole (600) via a round connector (800) via a thread.

5. A special tool for disassembling and assembling a soft-sealed high-pressure thermocouple according to claim 4, characterized in that: The lower end of the rotating nut (500) extends into the hollow outer ring (701) and is connected to the upper surface of the limiting rotating ring (703), and the plurality of rotating balls (704) are distributed in a ring shape when viewed from above.

6. A special tool for disassembling and assembling a soft-sealed high-pressure thermocouple according to claim 1, characterized in that: The plurality of rotating balls (704) are all made of stainless steel, and the upper end of each rotating ball (704) extends into the annular groove (705) on the lower surface of the limiting rotating ring (703).

7. A special tool for disassembling and assembling a soft-sealed high-pressure thermocouple according to claim 1, characterized in that: The lower end of each rotating ball (704) extends into the annular groove (705) at the lower bottom of the rotating cavity (702), and the lower surface of the anti-skid pad is provided with anti-skid stripes, and the anti-skid pad is made of wear-resistant rubber material.

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