A transmitter housing end cap internal thread on-line restorer

Abstract

The utility model discloses a kind of transmitter shell end cover inner thread on-line restorer, including cutting part and handheld part, cutting part is cylindrical structure, the axial one end of cutting part is open, the other end is closed arrangement, the closed end of chip removal part is fixedly connected handheld part, thread calibration toughness is radially set up on the outer wall of cutting part, the outer wall of cutting part is opened along the axis Multiple chip grooves, the inner wall of cutting part is equipped with insulating inner bushing.The utility model cutting part adopts cylindrical structure, when repairing transmitter shell inner thread, without disassembling internal instrument equipment, without disconnecting power supply can be repaired on-line, without affecting normal production, increase work efficiency;Insulating inner bushing is set on the inner wall of cutting part, can effectively prevent short circuit problem in the repair process;The utility model whole structure is simple, convenient to operate, easy to operate, and can be reused.

Description

Technical fields:

[0001] This utility model relates to the field of thread repair technology, specifically to an online repairer for the internal threads of a transmitter housing end cap. Background technology:

[0002] Pressure transmitters are commonly used sensors in industrial practice, widely applied in various industrial automation environments. They are frequently used to measure pressure, differential pressure, vacuum, liquid level, flow rate, and density. During on-site wiring, commissioning, and inspection, it is often necessary to open the transmitter end cover. The end cover is secured to the transmitter housing by threads. Since both the transmitter housing and end cover are mostly made of cast aluminum, repeated disassembly and reassembly or improper installation can easily damage the threads, leading to water or dust ingress, or even explosion-proof issues. Using traditional thread repair tools requires disconnecting the power supply and removing the instruments inside the pressure transmitter housing. This disassembly process can easily damage the instruments, resulting in lengthy repair times and reduced production efficiency. Utility Model Content:

[0003] In view of this, the present invention provides an online repairer for the internal threads of the transmitter housing end cap that is simple in structure, easy to operate, and reusable.

[0004] The purpose of this utility model is achieved by the following technical solution: an online repairer for the internal thread of a transmitter housing end cover, comprising a cutting part and a handheld part, characterized in that the cutting part is a cylindrical structure, one axial end of the cutting part is open and the other end is closed, the closed end of the cutting part is fixedly connected to the handheld part, the outer wall of the cutting part is radially provided with threaded calibration grooves, the outer wall of the cutting part is provided with multiple chip grooves along the axial direction, and the inner wall of the cutting part is provided with an insulating inner liner.

[0005] Furthermore, the insulating inner liner is made of PVC or rubber.

[0006] Furthermore, the depth of the chip groove is greater than the depth of the thread calibration groove.

[0007] Furthermore, a handle is fixedly provided on the handheld part.

[0008] Advantages of this invention: The cutting part of this invention adopts a cylindrical structure, which allows for online repair of the transmitter housing's internal threads without disassembling internal instruments or disconnecting the power supply, thus not affecting normal production and increasing work efficiency; an insulating inner liner is provided on the inner wall of the cutting part, which can effectively prevent short circuits during the repair process; in addition, this invention has a simple overall structure, is easy to operate, and can be reused. Attached image description:

[0009] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0010] Figure 1 This is a schematic diagram of the main sectional view of this utility model;

[0011] Figure 2 This is a side view of the present invention.

[0012] Figure 3 This is a schematic diagram of the overall structure of this utility model;

[0013] In the diagram: 1. Cutting section, 2. Handle, 3. Thread alignment tool, 4. Chip groove, 5. Insulating inner liner, 6. Handle. Detailed implementation method:

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] like Figure 1-3 As shown, an online repairer for the internal thread of a transmitter housing end cap includes a cutting part 1 and a handheld part 2. The cutting part 1 is a cylindrical structure with one axial end open and the other end closed. The closed end of the cutting part is fixedly connected to the handheld part 2, which is a hollow or solid cylindrical structure and is fixedly connected to the cutting part 1 on the same axis. The connection can be made by welding or other threaded connection methods, or it can be an integrally formed structure.

[0016] A thread calibration shank 3 is radially formed on the outer wall of the cutting part 1. The thread calibration shank 3 is used to straighten the internal thread of the transmitter housing, ensuring accurate pitch. Multiple chip grooves 4 are formed axially on the outer wall of the cutting part 1. The chip grooves 4 extend axially from the open end of the cutting part 1 to the closed end, forming a strip-shaped groove structure. The spacing between adjacent chip grooves 4 is the same. In this embodiment, six chip grooves 4 are formed. During the repair process, the internal thread repairer generates debris, which accumulates in the chip grooves 4. The debris in the chip grooves 4 is eventually discharged and cleaned. The depth of the chip grooves 4 is greater than the depth of the thread calibration shank 3, allowing for better debris storage during the repair process. An insulating inner sleeve 5 is provided on the inner wall of the cutting part 1. The insulating inner sleeve 5 is made of PVC or rubber and fits against the inner wall of the cutting part 1. When repairing the internal thread of the transmitter housing without turning off the power, the insulating inner sleeve 5 isolates the instrument inside the transmitter housing from direct contact with the repairer, preventing short circuit damage to the equipment.

[0017] A handle 6 is fixedly provided on the hand-held part 2. The handle 6 is set through the hand-held part 2 and fixed to the hand-held part 2 by welding, which facilitates the operation of the staff.

[0018] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An online repair tool for the internal threads of a transmitter housing end cap, comprising a cutting part and a handheld part, characterized in that, The cutting part is a cylindrical structure. One end of the cutting part is open along the axial direction, and the other end is closed. The closed end of the cutting part is fixedly connected to the hand-held part. The outer wall of the cutting part is radially provided with threaded calibration grooves. The outer wall of the cutting part is provided with multiple chip grooves along the axial direction. The inner wall of the cutting part is provided with an insulating inner liner.

2. The transmitter housing end cover internal thread online repair device according to claim 1, characterized in that, The insulating inner liner is made of PVC or rubber.

3. The transmitter housing end cover internal thread online repair device according to claim 1, characterized in that, The depth of the chip groove is greater than the depth of the thread calibration groove.

4. The transmitter housing end cap internal thread online repair device according to claim 1, characterized in that, A handle is fixedly provided on the handheld part.

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