Broken wire thread extractor for small spaces

Abstract

The utility model discloses a kind of broken screw take-out device convenient for small space use, belong to the technical field of auxiliary tools for steel industry.It includes connecting mechanism and take-out mechanism, the connecting mechanism includes connecting lever, fastening rod and force block, the connecting lever includes two semicylindrical connecting blocks and expansion bolt, two connecting blocks are buckled together, and the connecting block on upside is equipped with through-hole, and there is internal thread in through-hole, the expansion bolt is cooperated with the through-hole thread, one end of two connecting blocks is connected in one end of fastening rod, the other end of fastening rod is connected with force block, the periphery of force block is hexagonal, connecting block is inserted into the screw to be taken out and is clamped, take-out mechanism rotates force block.Compared with prior art, the utility model inserts connecting lever into the screw of pipe fitting, after tightening expansion bolt, the screw of anti-skid strip clamping column fracture, reversely rotates clamping block, and takes out broken pipe fitting.Improves the convenience of taking screw, and it is convenient for small space operation simultaneously.

Description

Technical Field

[0001] This utility model belongs to the technical field of auxiliary tools for the steel industry, and in particular, it is a device for removing broken threads that is easy to use in small spaces. Background Technology

[0002] Steel workshops require a large amount of water-cooled equipment, necessitating complex water piping systems. This is especially true in areas with dense water pipe networks, such as water-cooling equipment, where high temperatures and humidity, coupled with tensile forces at pipe connections, make the threads prone to corrosion and wear. Frequent inspection and replacement of threads are necessary. Often, broken pipe threads remain inside the pipe, preventing removal and rendering the fitting unusable or hindering repairs. Furthermore, the confined spaces in these workshops hinder the use of large equipment, significantly impacting work efficiency. Summary of the Invention

[0003] This utility model provides a broken thread removal device that is easy to use in small spaces. It facilitates the removal of broken threads, improves efficiency, and is flexible in use, allowing for operation in small spaces.

[0004] This utility model solves the above-mentioned technical problems through the following technical solutions. A device for removing broken threads that is easy to use in small spaces includes a connecting mechanism and a removal mechanism. The connecting mechanism includes a connecting rod, a fastening rod, and a force-applying block. The connecting rod includes two semi-cylindrical connecting blocks and an expansion bolt. The two connecting blocks are fastened together. The upper connecting block has a through hole with an internal thread. The expansion bolt engages with the thread in the through hole. One end of the two connecting blocks is connected to one end of the fastening rod, and the other end of the fastening rod is connected to the force-applying block. The force-applying block has a hexagonal outer periphery. The connecting block extends into the thread to be removed and locks it in place. The removal mechanism rotates the force-applying block.

[0005] The above-mentioned broken thread removal device, which is convenient for use in small spaces, includes a handle, a connecting rod, and a locking block. The locking block has a locking groove on one side, which fits around the force-applying block. One end of the connecting rod is fixed to the locking block, and the other end is connected to the handle.

[0006] The aforementioned broken thread removal device, which is convenient for use in small spaces, has a rotating handle 12 on the top of the tightening bolt.

[0007] The aforementioned broken thread removal device, which is convenient for use in small spaces, includes several anti-slip strips on the periphery of the connecting block, and the cross-section of the anti-slip strips is triangular.

[0008] Compared with existing technologies, this utility model inserts the connecting rod into the thread of the pipe fitting. After tightening the expansion bolt, the anti-slip strip catches the broken thread, and the locking block is rotated in the opposite direction to remove the broken thread pipe fitting. This improves the convenience of thread removal and facilitates operation in confined spaces. It can be disassembled and assembled in narrow spaces, making it suitable for mass industrial production. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of this utility model; Figure 3 This is a schematic diagram of the end structure of this utility model; The markings in the attached diagram represent: 1. Connecting rod, 2. Fastening rod, 3. Force-applying block, 4. Connecting block, 5. Expansion bolt, 6. Through hole, 7. Handle, 8. Connecting rod, 9. Locking block, 10. Locking groove, 11. Anti-slip strip, 12. Rotating handle. Detailed Implementation

[0010] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model.

[0011] like Figures 1 to 3 This utility model includes a connecting mechanism and a removal mechanism. The connecting mechanism includes a connecting rod 1, a fastening rod 2, and a force-applying block 3. The connecting rod 1 includes two semi-cylindrical connecting blocks 4 and an expansion bolt 5. The two connecting blocks 4 are fastened together. The upper connecting block 4 has a through hole 6 with an internal thread. The expansion bolt 5 is threaded into the through hole 6. One end of the two connecting blocks 4 is connected to one end of the fastening rod 2, and the other end of the fastening rod 2 is connected to the force-applying block 3. The outer periphery of the force-applying block 3 is hexagonal. The connecting blocks 4 extend into the thread to be removed and lock in place. The removal mechanism rotates the force-applying block 3. To facilitate the rotation of the expansion bolt 5, the top of the expansion bolt 5 has a rotating handle 12. One end of the expansion bolt 5 presses downward against the lower connecting block 4, and the ends of the two connecting blocks 4 are spread apart, thereby tightening against the inner wall of the thread. The connecting rod 1 is used to contact and tighten against the inner wall of the broken thread. The removal mechanism drives the connecting mechanism to rotate, and then unscrews the thread from the pipe.

[0012] To facilitate the smooth rotation of the force-applying block 3, the removal mechanism includes a handle 7, a connecting rod 8, and a locking block 9. The locking block 9 has a slot 10 on one side, which fits into the outer periphery of the force-applying block 3. One end of the connecting rod 8 is fixedly connected to the locking block 9, and the other end is connected to the handle 7. By rotating the handle 7, the force-applying block 3 can be rotated, thereby driving the connecting rod 1 and the threaded connection.

[0013] To increase the friction between the connecting rod 1 and the thread, several anti-slip strips 11 are provided on the periphery of the connecting block 4. The anti-slip strips 11 have a triangular cross-section. The anti-slip strips are integrally formed with the connecting block. After the connecting block 4 is opened by the expansion bolt 5, the anti-slip strips 11 on the outside of the connecting block 4 press against the inner wall of the thread, increasing the friction between the connecting block 4 and the inner wall of the thread during rotation.

[0014] When in use, insert the end of the connecting rod 1 into the thread, then rotate the expansion bolt 5. The expansion bolt will gradually separate the two connecting blocks 4, thereby tightening the connecting rod 1 into the thread. Tighten the force block 3 in the opposite direction to remove the broken thread.

[0015] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A device for removing broken threads that is easy to use in small spaces, characterized in that, The device includes a connecting mechanism and a removal mechanism. The connecting mechanism includes a connecting rod (1), a fastening rod (2), and a force-applying block (3). The connecting rod (1) includes two semi-cylindrical connecting blocks (4) and a tightening bolt (5). The two connecting blocks (4) are fastened together. The upper connecting block (4) has a through hole (6) with an internal thread. The tightening bolt (5) is threaded into the through hole (6). One end of the two connecting blocks (4) is connected to one end of the fastening rod (2), and the other end of the fastening rod (2) is connected to the force-applying block. The outer periphery of the force-applying block (3) is hexagonal. The connecting block (4) extends into the thread to be removed and is locked. The removal mechanism rotates the force-applying block (3).

2. The broken thread removal device as described in claim 1, which is convenient for use in small spaces, is characterized in that... The removal mechanism includes a handle (7), a connecting rod (8), and a locking block (9). The locking block (9) has a locking groove (10) on one side, which fits around the force-applying block (3). One end of the connecting rod (8) is fixed to the locking block (9), and the other end is connected to the handle (7).

3. The broken thread removal device as described in claim 2, which is convenient for use in small spaces, is characterized in that... The top of the expansion bolt (5) is provided with a rotating handle (12).

4. The broken thread removal device as described in claim 3, which is convenient for use in small spaces, is characterized in that... The periphery of the connecting block (4) is provided with several anti-slip strips (11), and the cross-section of the anti-slip strips (11) is triangular.

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