A lock head with anti-falling structure

The design of the anti-detachment mechanism and protective sleeve solves the problem of screws loosening and falling off during use, achieving a stable connection and protection for the Luotie head and extending its service life.

CN224333623UActive Publication Date: 2026-06-09SHENZHEN JIMEI ELECTRONIC EQUIP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN JIMEI ELECTRONIC EQUIP CO LTD
Filing Date
2025-02-20
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

The existing Luotie head is prone to loosening during use due to the screws installed on the connecting pipe, which can cause it to fall off and affect normal use.

Method used

An anti-detachment mechanism is adopted, including components such as annular blocks, annular plates, sleeves, and threaded blocks. Through the design of threaded connections and insertion slots, the iron head is limited, and a protective sleeve is set on the surface of the iron head for protection.

Benefits of technology

It effectively prevents the iron tip from falling off the connecting pipe, extends its service life, and protects the iron tip from impact damage.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224333623U_ABST
    Figure CN224333623U_ABST
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Abstract

This utility model relates to the field of welding tip technology, specifically a welding tip with an anti-detachment structure, comprising: a body including a welding pen, wherein a connecting tube is fixedly connected to the surface of the welding pen, and the welding tip body is inserted into the inner surface of the connecting tube; and an anti-detachment mechanism including an annular block. This utility model, through the connection of a threaded block and a threaded groove, allows the annular plate to abut against the surface of the annular block, achieving a limiting effect on the welding tip body along the direction of the connecting tube. By setting insertion grooves and insertion blocks on the surfaces of the annular block and the annular plate respectively, the connection between the two can limit the rotation of the welding tip body, thereby changing the original method of limiting the welding tip body by screw abutment to an anti-detachment mechanism, preventing the welding tip body from falling off the connecting tube during use. By covering the surface of the welding tip body with a protective sleeve, the welding end of the welding tip body can be protected.
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Description

Technical Field

[0001] This utility model relates to the field of Luotie head technology, specifically to a Luotie head with an anti-detachment structure. Background Technology

[0002] Soldering tips are widely used in the fields of electronic repair and manufacturing. Soldering tips refer to a part of an electric soldering iron. They are the core components of the soldering iron and are used to solder electronic components. The selection and maintenance of soldering tips play a crucial role in the quality and efficiency of soldering.

[0003] When using a welding tip for welding, the tip needs to be inserted into the connecting tube and connected to the welding pen. However, in the current process, the tip is restrained and limited by a screw installed on the connecting tube. Over time, this can cause the screw connection to loosen, lose its restraining effect, and fall off, affecting normal use. Utility Model Content

[0004] The purpose of this utility model is to provide a Luotie head with an anti-detachment structure to solve the problem mentioned in the background art, where the Luotie head is restrained and limited by the screw installed on the connecting pipe during use, which easily causes the screw connection to loosen and lose its restraining effect after long-term use, thus affecting normal use.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a Luotie head with an anti-detachment structure, comprising:

[0006] The machine body includes an electric welding pen, on the surface of which a connecting tube is fixedly connected, and on the inner surface of which a metal tip body is inserted and connected.

[0007] The anti-detachment mechanism includes an annular block, which is fixedly connected to the surface of the main body of the iron head. An annular plate is fitted onto the surface of the main body of the iron head. An insertion groove is formed on the surface of the annular block. An insertion block is fixedly connected to the surface of the annular plate. A sleeve is fixedly connected to the surface of the annular plate. An installation cylinder is fixedly connected to the surface of the connecting pipe. A threaded block is fixedly connected to the surface of the sleeve. A connecting groove is formed on the surface of the installation cylinder. A fastener is installed on the surface of the installation cylinder. A threaded groove is formed on the surface of the fastener.

[0008] Preferably, the annular plate is abutted against the surface of the annular block, and two sets of insertion slots and insertion blocks are provided. The two sets of insertion slots are opened on both sides of the annular block, and the two sets of insertion blocks are installed on both sides of the annular plate. The insertion blocks are inserted into the surface of the insertion slots.

[0009] Preferably, the sleeve is fitted onto the surface of the annular block and the connecting pipe, the sleeve is abutted against the inner surface of the mounting cylinder, and two sets of threaded blocks and connecting grooves are provided. The two sets of threaded blocks are installed on both sides of the sleeve, and the two sets of connecting grooves are opened on both sides of the mounting cylinder.

[0010] Preferably, the threaded block is connected to the surface of the mounting cylinder through a connecting groove, the surface of the connecting groove being "L"-shaped, and the fastener is installed on the surface of the threaded block through the threaded groove, and the fastener is abutted against the outer surface of the mounting cylinder.

[0011] Preferably, the surface of the main body of the Luotie head is provided with a protective mechanism, the protective mechanism including a protective sleeve, the protective sleeve being fitted onto the surface of the main body of the Luotie head, a fixing block being installed on the surface of the protective sleeve, a connecting strap being movably connected to the outer surface of the protective sleeve, and a connecting hole being opened on the surface of the connecting strap.

[0012] Preferably, there are two sets of fixing blocks. One set of fixing blocks is fixedly connected to the outer surface of the protective sleeve, and the other set of fixing blocks is fixedly connected to the surface of the welding pen. The cross-section of the fixing block is "T" shaped, and the fixing block is connected to the surface of the connecting strip through the connecting hole.

[0013] Preferably, one end of the connecting strip is installed on the outer surface of the protective sleeve, and the other end of the connecting strip is installed on the surface of the welding pen. Two sets of connecting holes are provided, and the two sets of connecting holes are opened at both ends of the connecting strip.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The connection of the threaded block and the threaded groove allows the annular plate to be pressed against the surface of the annular block, which can limit the movement of the main body of the iron head along the direction of the connecting pipe. By setting the insertion groove and insertion block on the surface of the annular block and the annular plate respectively, the connection between the two can limit the rotation of the main body of the iron head, thereby changing the original method of limiting the main body of the iron head by screw to an anti-detachment mechanism, so as to prevent the main body of the iron head from falling off the connecting pipe during use.

[0016] 2. By covering the surface of the welding tip body with a protective sleeve, the welding end of the welding tip body can be protected, thereby extending the service life of the welding tip body and preventing damage to the welding tip body in the event of an impact. At the same time, with the connection of two sets of fixing blocks and connecting holes, the protective sleeve can be always installed on the surface of the welding pen through the connecting strap, so as to avoid the situation where the protective sleeve is placed randomly and becomes difficult to find. Attached Figure Description

[0017] Figure 1 This is a three-dimensional front view of the structure of this utility model;

[0018] Figure 2 This is an exploded three-dimensional structural diagram of the present invention;

[0019] Figure 3 This is an exploded three-dimensional schematic diagram of the sleeve pipe structure of this utility model;

[0020] Figure 4 This is a partial three-dimensional sectional view of the structure of the protective sleeve of this utility model;

[0021] Figure 5 This utility model Figure 3 A three-dimensional schematic diagram of the structure of the threaded block.

[0022] In the diagram: 1. Welding pen; 11. Connecting pipe; 12. Iron head body; 2. Ring block; 21. Ring plate; 22. Insert groove; 23. Insert block; 24. Socket pipe; 25. Mounting cylinder; 26. Threaded block; 27. Connecting groove; 28. Fastener; 29. ​​Threaded groove; 3. Protective sleeve; 31. Fixing block; 32. Connecting strip; 33. Connecting hole. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-5 One embodiment provided by this utility model:

[0025] A Luotie head with an anti-detachment structure includes:

[0026] The machine body includes an electric welding pen 1. A connecting tube 11 is fixedly connected to the surface of the electric welding pen 1. A soldering tip body 12 is inserted into the inner surface of the connecting tube 11. When using the soldering tip, the soldering tip body 12 needs to be inserted into the connecting tube 11, and the electric welding pen 1 is powered on and soldered with solder wire.

[0027] The anti-detachment mechanism includes an annular block 2, which is fixedly connected to the surface of the main body 12 of the iron tip. An annular plate 21 is fitted onto the surface of the main body 12 of the iron tip. An insertion groove 22 is formed on the surface of the annular block 2. An insertion block 23 is fixedly connected to the surface of the annular plate 21. A sleeve pipe 24 is fixedly connected to the surface of the annular plate 21. An installation cylinder 25 is fixedly connected to the surface of the connecting pipe 11. A threaded block 26 is fixedly connected to the surface of the sleeve pipe 24. A connecting groove 27 is formed on the surface of the installation cylinder 25. A fastener 28 is installed on the surface of the installation cylinder 25. A threaded groove 29 is formed on the surface of the fastener 28. The position of the main body 12 of the iron tip can be limited by the annular block 2, and the main body 12 of the iron tip can be prevented from continuing to move into the connecting pipe 11.

[0028] Furthermore, the annular plate 21 is abutted against the surface of the annular block 2. Two sets of insertion slots 22 and insertion blocks 23 are provided. The two sets of insertion slots 22 are opened on both sides of the annular block 2, and the two sets of insertion blocks 23 are installed on both sides of the annular plate 21. The insertion blocks 23 are inserted into the surface of the insertion slots 22. With the connection of the insertion blocks 23 and the insertion slots 22, the annular plate 21 and the annular block 2 can be connected, thereby connecting the sleeve 24 and the main body 12 of the iron head, and realizing the rotation limit of the main body 12 of the iron head.

[0029] Furthermore, the sleeve 24 is fitted onto the surface of the annular block 2 and the connecting pipe 11, and the sleeve 24 is abutted against the inner surface of the mounting cylinder 25. Two sets of threaded blocks 26 and connecting grooves 27 are provided. The two sets of threaded blocks 26 are installed on both sides of the sleeve 24, and the two sets of connecting grooves 27 are opened on both sides of the mounting cylinder 25. The outer diameter of the annular block 2, the outer diameter of the connecting pipe 11, and the inner diameter of the sleeve 24 are the same. The sleeve 24 and the threaded blocks 26 can be installed through the mounting cylinder 25 and the connecting grooves 27.

[0030] Furthermore, the threaded block 26 is connected to the surface of the mounting cylinder 25 through the connecting groove 27. The surface of the connecting groove 27 is "L" shaped. The fastener 28 is installed on the surface of the threaded block 26 through the threaded groove 29. The fastener 28 is abutted against the outer surface of the mounting cylinder 25. One end of the threaded block 26 is fixed to the outside of the sleeve 24, while the other end is threadedly connected to the threaded groove 29. With the connection of the threaded block 26 and the fastener 28, the threaded block 26 can be limited to the surface of the mounting cylinder 25, thereby limiting the sleeve 24.

[0031] Furthermore, a protective mechanism is provided on the surface of the main body 12 of the welding torch. The protective mechanism includes a protective sleeve 3, which is fitted onto the surface of the main body 12 of the welding torch. A fixing block 31 is installed on the surface of the protective sleeve 3. A connecting band 32 is movably connected to the outer surface of the protective sleeve 3. A connecting hole 33 is opened on the surface of the connecting band 32. The protective sleeve 3 is made of rubber to protect the welding end of the main body 12 of the welding torch. With the connection of the fixing block 31 and the connecting hole 33, the two ends of the connecting band 32 can be connected to the welding torch 1 and the protective sleeve 3 respectively.

[0032] Furthermore, there are two sets of fixing blocks 31. One set of fixing blocks 31 is fixedly connected to the outer surface of the protective sleeve 3, and the other set of fixing blocks 31 is fixedly connected to the surface of the welding pen 1. The cross-section of the fixing block 31 is "T" shaped. The fixing block 31 is connected to the surface of the connecting strip 32 through the connecting hole 33. The fixing block 31 consists of two parts, one part of which has the same diameter as the connecting hole 33 and is installed on its surface, while the other part has a larger diameter than the connecting hole 33 and is attached to the surface of the connecting strip 32.

[0033] Furthermore, one end of the connecting strap 32 is installed on the outer surface of the protective sleeve 3, and the other end of the connecting strap 32 is installed on the surface of the welding pen 1. Two sets of connecting holes 33 are provided, and the two sets of connecting holes 33 are opened at both ends of the connecting strap 32. Under the action of the connecting strap 32, the protective sleeve 3 can always be connected to the welding pen 1, and the fixing block 31 can be installed through the connecting holes 33.

[0034] Working principle: When installing the main body 12 of the Luotie head, first insert the main body 12 of the Luotie head into the connecting pipe 11 and let the annular block 2 abut against its surface. Then, put the end of the sleeve 24 away from the annular plate 21 onto the main body 12 of the Luotie head, the annular block 2 and the connecting pipe 11 in sequence, while the main body 12 of the Luotie head passes through the annular plate 21. Then, align the positions of the two sets of threaded blocks 26 and the connecting groove 27, and align the positions of the two sets of plug-in blocks 23 and the plug-in groove 22. At this time, move the sleeve 24 again so that it is inserted and abuts against the mounting cylinder 25, while the plug-in block 23 is inserted into the plug-in groove 22 and the threaded block 26 slides and engages in the connecting groove 27. Finally, align the threaded groove 29 with the threaded block 26 and rotate the fastener 28 so that the threaded block 26 is connected to the threaded groove 29 by threads. After the fastener 28 is tightened, it abuts against the mounting cylinder 25, thereby making the main body 12 of the Luotie head firmly installed.

[0035] When welding without using the welding tip, first move the protective sleeve 3 and move the connecting band 32 together. Then, align the inner surface of the protective sleeve 3 with the welding end of the welding tip body 12 and put it on its surface. At this time, the two ends of the connecting band 32 move on the surfaces of the welding pen 1 and the protective sleeve 3 respectively through the connection of two sets of connecting holes 33 and fixing blocks 31. The fixing blocks 31 rotate on the surface of the connecting holes 33, so that the protective sleeve 3 can protect the welding tip body 12 from being bumped.

[0036] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A Luotie head with an anti-detachment structure, characterized in that, include: The body includes an electric welding pen (1), a connecting tube (11) is fixedly connected to the surface of the electric welding pen (1), and a Luo iron head body (12) is inserted and connected to the inner surface of the connecting tube (11). The anti-detachment mechanism includes an annular block (2), which is fixedly connected to the surface of the main body (12) of the iron head. An annular plate (21) is sleeved on the surface of the main body (12). An insertion groove (22) is opened on the surface of the annular block (2). An insertion block (23) is fixedly connected to the surface of the annular plate (21). A sleeve pipe (24) is fixedly connected to the surface of the annular plate (21). An installation cylinder (25) is fixedly connected to the surface of the connecting pipe (11). A threaded block (26) is fixedly connected to the surface of the sleeve pipe (24). A connecting groove (27) is opened on the surface of the installation cylinder (25). A fastener (28) is installed on the surface of the installation cylinder (25). A threaded groove (29) is opened on the surface of the fastener (28).

2. The Luotie head with an anti-detachment structure according to claim 1, characterized in that: The annular plate (21) is abutted against the surface of the annular block (2). There are two sets of insertion slots (22) and insertion blocks (23). The two sets of insertion slots (22) are opened on both sides of the annular block (2), and the two sets of insertion blocks (23) are installed on both sides of the annular plate (21). The insertion blocks (23) are inserted into the surface of the insertion slots (22).

3. A Luotie head with an anti-detachment structure according to claim 1, characterized in that: The sleeve (24) is fitted onto the surface of the annular block (2) and the connecting pipe (11). The sleeve (24) is abutted against the inner surface of the mounting cylinder (25). Two sets of threaded blocks (26) and connecting grooves (27) are provided. The two sets of threaded blocks (26) are installed on both sides of the sleeve (24), and the two sets of connecting grooves (27) are opened on both sides of the mounting cylinder (25).

4. A Luotie head with an anti-detachment structure according to claim 3, characterized in that: The threaded block (26) is connected to the surface of the mounting cylinder (25) through the connecting groove (27). The surface of the connecting groove (27) is "L" shaped. The fastener (28) is installed on the surface of the threaded block (26) through the threaded groove (29). The fastener (28) is abutted against the outer surface of the mounting cylinder (25).

5. A Luotie head with an anti-detachment structure according to claim 1, characterized in that: The surface of the main body (12) of the Luotie head is provided with a protective mechanism, which includes a protective sleeve (3). The protective sleeve (3) is fitted on the surface of the main body (12) of the Luotie head. A fixing block (31) is installed on the surface of the protective sleeve (3). A connecting band (32) is movably connected to the outer surface of the protective sleeve (3). A connecting hole (33) is opened on the surface of the connecting band (32).

6. A Luotie head with an anti-detachment structure according to claim 5, characterized in that: The fixing block (31) is provided in two sets. One set of the fixing block (31) is fixedly connected to the outer surface of the protective sleeve (3), and the other set of the fixing block (31) is fixedly connected to the surface of the welding pen (1). The cross section of the fixing block (31) is "T" shaped. The fixing block (31) is connected to the surface of the connecting strip (32) through the connecting hole (33).

7. A Luotie head with an anti-detachment structure according to claim 5, characterized in that: One end of the connecting strip (32) is installed on the outer surface of the protective sleeve (3), and the other end of the connecting strip (32) is installed on the surface of the welding pen (1). Two sets of connecting holes (33) are provided, and the two sets of connecting holes (33) are opened at both ends of the connecting strip (32).