Screw head

Abstract

The utility model discloses a screw head which comprises a sleeve and a connector, one end of the sleeve is connected with a positioning cap, the inner wall of the positioning cap is fixedly connected with a plurality of arc-shaped strips, the surfaces of the arc-shaped strips are provided with a plurality of teeth, and the positioning cap is arranged outside a threaded rod in a sleeved mode to rotate so that threads of the threaded rod can be repaired by the teeth. The connector is fixedly connected to the other end of the sleeve and used for being connected with a pneumatic wrench or an electric wrench so that the positioning cap can automatically rotate, labor is saved when the positioning cap is screwed, the surface of the rusted threaded rod is sleeved with the positioning cap, and when the positioning cap drives the teeth to rotate, the teeth rotate along the threaded groove of the threaded rod, and the threaded rod is screwed. And the threaded groove is cleaned and repaired, operation is easy, and the threaded rod is repaired more easily and conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of thread repair, and specifically relates to a screw head. Background Art

[0002] During the use of a threaded rod, due to rust, the threads on the surface of the threaded rod may be damaged, and rust slag, dust, and soil may also fill the thread grooves, resulting in difficulty in screwing a nut onto the threaded rod or a large resistance.

[0003] In related technologies, a wire brush or a special cleaning agent (such as a chemical cleaning agent, a cleaning agent spray, a lubricant, etc.) is used to clean impurities such as rust slag, dust, and soil in the thread grooves. The operation is relatively troublesome and requires the preparation of agent products; if the threaded rod is directly replaced, a threaded rod of the same specification is required, and some threaded rods are difficult to replace. Content of the Utility Model

[0004] The purpose of the utility model is to provide a screw head to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A screw head, including a sleeve, one end of the sleeve is connected with a positioning cap, several arc-shaped strips are fixedly connected to the inner wall of the positioning cap, several teeth are arranged on the surface of the arc-shaped strips, and the positioning cap rotates outside the threaded rod so that the teeth repair the threads of the threaded rod and can also clean rust slag and dust, making it easier to screw the nut;

[0006] A connecting head, the connecting head is fixedly connected to the other end of the sleeve, and the connecting head is used to connect with a pneumatic wrench or an electric wrench so that the positioning cap rotates automatically, making it labor-saving and convenient to clean and repair the threaded rod, and the operation is also very simple.

[0007] Further, several slag collection grooves are fixedly connected to the inner wall of the positioning cap, and the slag collection grooves are located between two arc-shaped strips. A slag discharge hole is arranged on the surface of the sleeve, and the slag discharge hole is communicated with the slag collection grooves. Rust slag and dust enter the slag collection grooves to ensure that the resistance of the positioning cap during rotation is small, and the rust slag and dust are discharged from the slag discharge hole without affecting the rotation of the positioning cap.

[0008] Further, a slot is arranged on the surface of the positioning cap, an insertion rod is inserted into the slot, and the insertion rod is pushed to manually rotate the positioning cap, and the threaded rod can be repaired automatically or manually according to requirements.

[0009] Compared with the prior art, the beneficial effects of the utility model are: The connecting head is connected with a pneumatic wrench or an electric wrench, making it more labor-saving to screw the positioning cap. The positioning cap is sleeved on the surface of the rusty threaded rod. When the positioning cap drives the teeth to rotate, the teeth rotate along the thread grooves of the threaded rod to clean and repair the thread grooves. The operation is simple, and it is more convenient to repair the threaded rod. Description of the Drawings

[0010] Figure 1 Schematic diagram of the connection between the positioning cap and the arc-shaped strip of the present utility model;

[0011] Figure 2 Schematic diagram of the connection between the sleeve and the slag discharge hole of the present utility model.

[0012] In the figure: 1. Sleeve; 2. Connector; 3. Positioning cap; 4. Slag collection groove; 5. Arc-shaped strip; 6. Teeth; 7. Slot; 8. Slag discharge hole. Specific implementation mode

[0013] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model. Embodiment

[0014] Please refer to Figure 1-2 , the present utility model provides a technical solution: a screw head, including a sleeve 1, one end of the sleeve 1 is connected with a positioning cap 3, the inner wall of the positioning cap 3 is fixedly connected with a plurality of arc-shaped strips 5, and a plurality of teeth 6 are arranged on the surface of the arc-shaped strips 5. The positioning cap 3 is sleeved outside the threaded rod and rotates to make the teeth 6 repair the thread of the threaded rod;

[0015] The size of the positioning cap 3 can be manufactured according to the size of the threaded rod, so that the teeth 6 can contact the thread groove of the threaded rod to realize the repair of the thread groove;

[0016] A connector 2, the connector 2 is fixedly connected to the other end of the sleeve 1, and the connector 2 is used to connect with a pneumatic wrench or an electric wrench to make the positioning cap 3 rotate automatically. When the threaded rod is severely rusted, using an electric wrench can repair the threaded rod more labor-saving.

[0017] In this embodiment, as Figure 1 and Figure 2 shown, the inner wall of the positioning cap 3 is fixedly connected with a plurality of slag collection grooves 4, and the slag collection grooves 4 are located between two arc-shaped strips 5. The rust slag and dust removed by the teeth 6 are discharged into the slag collection grooves 4 to prevent the rust slag and dust from filling the threaded rod and the teeth 6 and ensure the smooth rotation of the teeth 6.

[0018] In this embodiment, as Figure 1 and Figure 2As shown, slag discharge holes 8 are provided on the surface of the sleeve 1, and the slag discharge holes 8 communicate with the slag collection tank 4. When the sleeve 1 rotates, rust slag and dust move in the slag collection tank 4 and are discharged through the slag discharge holes 8, without affecting the rotation of the teeth 6.

[0019] In this embodiment, as Figure 2 shown, slots 7 are provided on the surface of the positioning cap 3. The plug rod is inserted into the slots 7, and the plug rod is pushed to manually rotate the positioning cap 3. The repair of the threaded rod can be modified manually or automatically according to requirements.

[0020] Specifically, in use, taking an electric wrench as an example, the connector 2 is sleeved with the electric wrench, the positioning cap 3 is aligned with the threaded rod, and the electric wrench is used to drive the positioning cap 3 to rotate. The teeth 6 rotate along with the positioning cap 3. At this time, the teeth 6 rotate along the thread groove of the threaded rod, removing the rust slag and dust in the thread groove during the rotation process and repairing the thread groove. Then, control the electric wrench to rotate in the reverse direction to perform secondary cleaning of the thread groove, and apply lubricating oil to the threaded rod according to requirements to prevent rust and facilitate the screwing of the nut on the threaded rod.

[0021] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A screw head, characterized in that: include: A sleeve (1), one end of the sleeve (1) is connected to a positioning cap (3), the inner wall of the positioning cap (3) is fixedly connected to a plurality of arcuate strips (5), the surface of the arcuate strips (5) is provided with a plurality of teeth (6), the positioning cap (3) is sleeved on the outside of the threaded rod and rotated so that the teeth (6) repair the threads of the threaded rod; A connecting head (2) is fixedly connected to the other end of the sleeve (1), and the connecting head (2) is used to connect to a pneumatic wrench or an electric wrench so that the positioning cap (3) rotates automatically.

2. A screw head according to claim 1, characterized in that: A plurality of slag collecting grooves (4) are fixedly connected to the inner wall of the positioning cap (3), and the slag collecting grooves (4) are located between the two arcuate surfaces (5).

3. A screw head according to claim 2, characterized in that: A slag discharge hole (8) is provided on the surface of the sleeve (1), and the slag discharge hole (8) is connected to the slag collecting groove (4).

4. A screw head according to claim 1, characterized in that: The surface of the positioning cap (3) is provided with a slot (7), and an insertion rod is inserted into the slot (7). The insertion rod is pushed to manually rotate the positioning cap (3).

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