Thread repairing device

Abstract

The utility model discloses a thread repairing device, which relates to the field of thread repairing, and comprises a first block body and a second block body, one end of the first block body is rotatably connected with one end of the second block body, the other end of the first block body is detachably connected with the other end of the second block body, the first block body is provided with a first semicircular groove, and the second block body is provided with a second semicircular groove. A first semicircular groove is formed in the first block body, a second semicircular groove is formed in the second block body, the first semicircular groove is matched with the second semicircular groove, and first repairing threads are arranged on the inner side wall of the first semicircular groove and the inner side wall of the second semicircular groove; the problems that the maintenance period is prolonged and potential safety hazards are left due to the fact that thermocouple threads are damaged during power plant maintenance are solved.

Description

Technical Field

[0001] The utility model relates to the field of thread repair, in particular to a thread repair device. Background Art

[0002] During the overhaul of power plant units for refueling, the thermocouple joints used to measure the core temperature need to be disconnected and reconnected. Due to the location and environment of the thermocouple joints, there is a risk of damage to the threads of the thermocouple joints during removal and reinstallation. If the entire thermocouple is replaced due to thread damage, it will have a significant impact on the overhaul period and increase the maintenance costs of the power plant. If the thermocouple joint threads are damaged and not repaired, the overall measurement performance of the thermocouple after the connection is restored will pose a huge safety hazard to the equipment and even to human safety. Utility Model Content

[0003] The utility model provides a thread repair device to solve the problem that during the maintenance of a power plant, the thread of a thermocouple is damaged, which causes the maintenance period to be prolonged and leaves potential safety hazards.

[0004] To achieve the above purpose, the present invention provides the following solutions:

[0005] A thread repair device includes a first block and a second block, one end of the first block is rotatably connected to one end of the second block, the other end of the first block is detachably connected to the other end of the second block, a first semicircular groove is provided on the first block, a second semicircular groove is provided on the second block, the first semicircular groove and the second semicircular groove match, and the inner side walls of the first semicircular groove and the second semicircular groove are both provided with a first repair thread.

[0006] The utility model clamps the damaged threaded rod by rotating the connected first block and the second block, matches the thread on the threaded rod with the first repair thread in the first semicircular groove and the second semicircular groove, and then rotates the thread repair device or the damaged threaded rod to repair the thread on the damaged threaded rod so that it can be smoothly screwed into the corresponding position of the equipment, thereby achieving immediate repair of the damaged thread, avoiding a major impact on the construction period, ensuring the integrity of the equipment, and avoiding safety hazards.

[0007] Furthermore, an extension column is provided at one end of the first block and the second block being detachably connected, and a through hole is provided on the extension column for accommodating one end of the second block. A threaded hole connected to the through hole is provided at the end of the extension column away from the first block, and a screw is provided in the threaded hole.

[0008] By embedding one end of the second block into the through hole and tightening the screw to fix the first block and the second block, and then loosening the screw and rotating the second block to open the first semicircular groove and the second semicircular groove, it is convenient to embed and clamp the damaged screw, and to repair the damaged screw.

[0009] Furthermore, the length of the screw is greater than or equal to the length of the through hole.

[0010] Furthermore, a butterfly nut for gripping is provided at one end of the screw away from the extension column, which is convenient for hand gripping and enhances the firmness of manually tightening the screw without the need for additional tools, making operation and use more convenient.

[0011] Furthermore, a plurality of first notches are formed on the inner side walls of the first semicircular groove and the second semicircular groove, and the first notches cut the first repair thread into a plurality of thread segments.

[0012] Since metal debris will be generated when repairing the thread, in order to prevent the metal debris from entering the intact thread and damaging it, a first notch is set so that the debris generated when repairing the thread can leave the first notch as soon as possible, ensuring that the thread will not be damaged again during the repair.

[0013] Furthermore, a handle is provided on one side of the first block. During the repair operation, the repair device needs to be rotated, so the handle can be convenient for the operator to grasp.

[0014] Furthermore, the surface of the handle is provided with anti-skid grooves to increase the friction of the handle and prevent the operator from slipping when gripping the handle.

[0015] Furthermore, a hanging ring is provided on one side of the first block. By setting a noose on the hanging ring, the thread repair device can be carried around the neck or other places for easy use.

[0016] Furthermore, a prismatic hole is provided on the first block, an extension rod is detachably connected to the prismatic hole, and a second repair thread is provided on the extension rod.

[0017] The extension rod and the second repair thread are used to repair the damaged internal thread, and the prismatic hole limits the extension rod circumferentially to prevent relative rotation between the device and the extension rod when the rotating device repairs the damaged internal thread. At the same time, extension rods of different sizes can be installed in the prismatic hole, which increases the adaptability of the device.

[0018] Furthermore, the extension rod is provided with a plurality of second notches, and the second notches cut the second repair thread into a plurality of thread segments.

[0019] Since metal debris will be generated when repairing the thread, in order to prevent the metal debris from entering the intact thread and damaging it, a first notch is set so that the debris generated when repairing the thread can leave the first notch as soon as possible, ensuring that the thread will not be damaged again during the repair.

[0020] One or more technical solutions provided by this utility model have at least the following technical effects or advantages:

[0021] (1) The utility model clamps the damaged threaded rod by rotating the connected first block and the second block, matches the thread on the threaded rod with the first repair thread in the first semicircular groove and the second semicircular groove, and then rotates the thread repair device or the damaged threaded rod to repair the thread on the damaged threaded rod so that it can be smoothly screwed into the corresponding position of the equipment, thereby achieving immediate repair of the damaged thread, avoiding a significant impact on the construction period, ensuring the integrity of the equipment, and avoiding safety hazards;

[0022] (2) By providing the first notch, debris generated during thread repair can be removed from the first notch as quickly as possible, ensuring that the thread will not be damaged again during repair;

[0023] (3) By setting a rope loop on the hanging ring, the thread repair device can be hung around the neck or other places and carried around for easy use, so that it can be used at any time. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of the present invention, and do not constitute a limitation of the embodiments of the present invention;

[0025] Figure 1 This is a schematic diagram of the overall structure of the thread repair device in the utility model;

[0026] Figure 2 This is an exploded view of the structure of the thread repair device in the utility model;

[0027] Among them, 1-first block, 2-second block, 3-first semicircular groove, 4-second semicircular groove, 5-first repair thread, 6-extension column, 7-through hole, 8-screw, 9-butterfly nut, 10-first notch, 11-handle, 12-hanging ring, 13-prismatic hole, 14-extension rod, 15-second repair thread, 16-second notch. DETAILED DESCRIPTION

[0028] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present invention and the features therein can be combined with each other without conflict.

[0029] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0030] Example 1

[0031] A thread repair device, such as Figure 1-Figure 2 As shown, it includes a first block 1 and a second block 2, one end of the first block 1 and one end of the second block 2 are rotatably connected, the other end of the first block 1 and the other end of the second block 2 are detachably connected, a first semicircular groove 3 is provided on the first block 1, and a second semicircular groove 4 is provided on the second block 2, the first semicircular groove 3 and the second semicircular groove 4 match, and the inner side walls of the first semicircular groove 3 and the second semicircular groove 4 are both provided with a first repair thread 5.

[0032] Among them, the main body of the second block 2 is preferably a prismatic block for easy fixation. The first semicircular groove 3 and the second semicircular groove 4 form a circular hole after matching, and the first repair thread 5 on the inner wall of the first semicircular groove 3 and the second semicircular groove 4 forms a continuous thread after matching.

[0033] In a more preferred embodiment, an extension column 6 is provided at one end where the first block 1 and the second block 2 are detachably connected, and a through hole 7 is provided on the extension column 6 for accommodating one end of the second block 2. A threaded hole connected to the through hole 7 is provided at the end of the extension column 6 away from the first block 1, and a screw 8 is provided in the threaded hole.

[0034] Since the second block 2 is opened by rotation, the length of the through hole 7 provided in the extension column 6 needs to be able to accommodate one end of the second block 2 during the rotation process.

[0035] In a more preferred embodiment, the length of the screw rod 8 is greater than or equal to the length of the through hole 7 .

[0036] In a more preferred embodiment, a butterfly nut 9 for gripping is provided at one end of the screw rod 8 away from the extension column 6 .

[0037] In a more preferred embodiment, a handle 11 is provided on one side of the first block 1. The length of the handle 11 is greater than the width of the palm. In order to reduce the weight of the entire device, the handle is preferably made of a light material with high strength, such as plastic.

[0038] In a more preferred embodiment, the surface of the handle 11 is provided with anti-slip grooves.

[0039] In a more preferred embodiment, a hanging ring 12 is provided on one side of the first block 1 .

[0040] Example 2

[0041] On the basis of Example 1, Figure 1-Figure 2 A plurality of first notches 10 are provided on the inner side walls of the first semicircular groove 3 and the second semicircular groove 4. The first notches 10 cut the first repair thread 5 into a plurality of thread segments.

[0042] The number of first notches 10 is preferably 4 or more, evenly distributed on the inner walls of the first semicircular groove 3 and the second semicircular groove 4 . The length of the first notch 10 is determined according to demand to ensure that debris generated when repairing the thread can pass through the first notch 10 .

[0043] In a more preferred embodiment, a prismatic hole 13 is provided on the first block 1 , an extension rod 14 is detachably connected to the prismatic hole 13 , and a second repair thread 15 is provided on the extension rod 14 .

[0044] Among them, one end of the extension rod 14 is set to a prism structure that matches the prism hole 13. During installation, one end of the extension rod 14 is embedded in the prism hole 13 and then fixed and installed by means of a pin, key connection, etc.

[0045] In a more preferred embodiment, a plurality of second notches 16 are provided on the extension rod 14 , and the second notches 16 cut the second repair thread 15 into a plurality of thread segments.

[0046] The second notches 16 are preferably provided in four or more numbers and are evenly distributed on the surface of the extension rod 14 . The length of the second notches 16 is determined according to the needs to ensure that the debris generated during the thread repair can pass through the second repair thread 15 .

[0047] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0048] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A thread repair device, characterized in that: The invention comprises a first block (1) and a second block (2), wherein one end of the first block (1) is rotatably connected to one end of the second block (2), and the other end of the first block (1) is detachably connected to the other end of the second block (2); a first semicircular groove (3) is provided on the first block (1), and a second semicircular groove (4) is provided on the second block (2); the first semicircular groove (3) and the second semicircular groove (4) match each other, and first repair threads (5) are provided on the inner side walls of the first semicircular groove (3) and the second semicircular groove (4).

2. A thread repair device according to claim 1, characterized in that: An extension column (6) is provided at one end of the first block (1) and the second block (2) that are detachably connected, and a through hole (7) is provided on the extension column (6) for accommodating one end of the second block (2). A threaded hole communicating with the through hole (7) is provided at one end of the extension column (6) away from the first block (1), and a screw (8) is provided in the threaded hole.

3. A thread repair device according to claim 2, characterized in that: The length of the screw (8) is greater than or equal to the length of the through hole (7).

4. A thread repair device according to claim 2, characterized in that: The end of the screw rod (8) away from the extension column (6) is provided with a butterfly nut (9) for gripping.

5. A thread repair device according to claim 1, characterized in that: A plurality of first notches (10) are provided on the inner side walls of the first semicircular groove (3) and the second semicircular groove (4), and the first notches (10) cut the first repair thread (5) into a plurality of thread segments.

6. A thread repair device according to claim 1, characterized in that: A handle (11) is provided on one side of the first block (1).

7. A thread repair device according to claim 6, characterized in that: The surface of the handle (11) is provided with anti-slip grooves.

8. The thread repair device according to claim 1, characterized in that: A hanging ring (12) is provided on one side of the first block (1).

9. The thread repair device according to claim 1, characterized in that: The first block (1) is provided with a prism hole (13), an extension rod (14) is detachably connected to the prism hole (13), and a second repair thread (15) is provided on the extension rod (14).

10. The thread repair device according to claim 9, characterized in that: The extension rod (14) is provided with a plurality of second notches (16), and the second notches (16) cut the second repair thread (15) into a plurality of thread segments.

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