Electric soldering iron with adjustable tool bit

By designing an adjustable-tip soldering iron, the problems of rapid angle adjustment and self-cleaning of solder were solved, achieving the effects of easy observation and anti-scalding protection.

CN223932768UActive Publication Date: 2026-02-24ANHUI RUIGUANG ELECTRONIC TECH CO LTD
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Patent Information

Application Number
CN202520156955.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-23
Publication Date
2026-02-24
Estimated Expiration
2035-01-23

AI Technical Summary

Technical Problem

Existing soldering irons are not convenient for quick adjustment of the soldering tip angle, and do not have the function of vibration to prevent solder from sticking and self-cleaning residual solder.

Method used

An adjustable-tip soldering iron was designed, featuring anti-scalding protection driven by gripping and non-gripping actions. Combined with a vibration motor and a regular polygonal soldering rod structure, it achieves angle adjustment of the soldering rod and self-cleaning of solder.

Benefits of technology

It enables rapid angle adjustment of the soldering iron tip for easy observation, has anti-scalding protection, and reduces solder residue through micro-vibration of the soldering rod, making it easy to self-clean.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of electric soldering irons, and discloses an electric soldering iron with an adjustable tool bit, which comprises a holding shell, the inner wall of the holding shell is connected with two symmetrically arranged holding handles in a sliding manner, a tail gas cavity is formed in the holding shell, the inner wall of the tail gas cavity is connected with a piston seat in a sliding manner, and a connecting rod is hinged between each holding handle and the piston seat; a first spring matched with the piston seat is installed in the tail gas cavity, a driving module driven by displacement of the piston seat is installed in the holding shell, a rocking shell is hinged to the end of the holding shell, a rocking module for driving the rocking shell to rock is installed on the holding shell, and an electric heating rotating rod driven by the driving module is rotatably installed on the inner wall of the rocking shell; and a front air cavity is formed in the rocking shell. When the electric soldering iron is used, on one hand, the arrangement angle of the soldering iron end can be rapidly adjusted, then an electric soldering scene can be conveniently observed, and on the other hand, the electric soldering iron has an anti-scalding protection function driven by holding and non-holding actions when used.
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Description

Technical Field

[0001] This utility model relates to the field of soldering iron technology, and more specifically, to a soldering iron with an adjustable blade. Background Technology

[0002] Soldering irons are essential tools for electronics manufacturing and electrical appliance repair, primarily used for soldering components and wires. A soldering iron typically consists of a soldering tip, a soldering rod, and a power cord. In the prior art, patent document CN220050346U discloses an adjustable-tip soldering iron, including a soldering rod with a soldering tip attached to one end and a power cord attached to the other end. The arc-shaped surface of the soldering rod is equipped with a protective device. This device can prevent workers from being burned when accidentally touching the soldering tip after soldering. However, the above-mentioned soldering iron has the following technical problems in its use:

[0003] 1. It is not convenient to quickly adjust the angle of the soldering iron tip;

[0004] 2. It is not convenient to achieve solder stick vibration to prevent solder sticking and to remove residual solder.

[0005] Based on this, the present invention provides an adjustable-tip soldering iron to solve the technical problems mentioned in the background art. Utility Model Content

[0006] To overcome the shortcomings of the prior art, this utility model provides an adjustable soldering iron. When using this soldering iron, on the one hand, the angle of the soldering iron tip can be quickly adjusted, which facilitates the observation of the soldering scene. On the other hand, this soldering iron has a heat protection function driven by holding and non-holding actions. Furthermore, when using this soldering iron, it has a vibration function to prevent solder from sticking and a self-cleaning function for residual solder.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an adjustable soldering iron, comprising a grip shell, two symmetrically arranged handles slidably connected to the inner wall of the grip shell, an exhaust chamber inside the grip shell, a piston seat slidably connected to the inner wall of the exhaust chamber, a connecting rod hinged between each of the two handles and the piston seat, a first spring cooperating with the piston seat installed inside the exhaust chamber, a drive module driven by the movement of the piston seat installed inside the grip shell, and a rocker shell hinged to the end of the grip shell. A rocking module is installed on the shell to drive the rocking shell to rock. An electric heating rod driven by a drive module is rotatably installed on the inner wall of the rocking shell. A front air chamber is opened inside the rocking shell. The front air chamber is connected to the tail air chamber through a corrugated pipe. A sliding soldering rod is sleeved on the electric heating rod. A guide ring that slides and connects to the front air chamber is installed on the outer periphery of the soldering rod. A set of vibration motors is installed on the back of the guide ring. A second spring that cooperates with the guide ring is provided inside the front air chamber. A set of solder dross removal modules that cooperate with the soldering rod is installed on the rocking shell.

[0008] As a preferred technical solution of this utility model, the drive module includes a toothed plate installed on the back of the piston seat, a toothed shaft and a tail shaft rotatably connected inside the grip shell, a first bevel gear installed on the toothed shaft and the tail shaft, the two first bevel gears meshing with each other, a front gear connected to the toothed plate for transmission is installed on the toothed shaft, and a connecting shaft is hinged between the tail shaft and the electric heating rod.

[0009] As a preferred embodiment of this utility model, the rocking module includes a rotating shaft rotatably connected to the inner wall of the grip shell. A hinge shaft is installed on each of the two sides of the rocking shell, and both hinge shafts are rotatably connected to the grip shell. A second bevel gear is installed on both the rotating shaft and one of the hinge shafts, and the two second bevel gears mesh with each other. A toggle button is rotatably installed at the tail of the grip shell, and a rear gear is installed on both the toggle button and the rotating shaft, and the two rear gears mesh with each other.

[0010] As a preferred technical solution of this utility model, the inside of the soldering rod is fixedly provided with a heat-conducting groove with an opening at the tail end and which is slidably connected to the electric heating rod. The cross-sections of the heat-conducting groove and the electric heating rod are both regular polygons.

[0011] As a preferred embodiment of this utility model, an electric wire is installed at the tail of the grip shell, and the electric wire is electrically connected to the heating rod through a flexible wire.

[0012] As a preferred embodiment of this utility model, the tin dross removal module includes a wire brush plate hinged to the rocker shell, and a compression spring is installed between the wire brush plate and the rocker shell.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. When using this soldering iron, on the one hand, the angle of the soldering tip can be quickly adjusted, making it easier to observe the soldering scene. On the other hand, this soldering iron has a heat protection function driven by holding and non-holding actions. In addition, this soldering iron has a vibration function to prevent solder from sticking and a self-cleaning function for residual solder.

[0015] 2. This soldering iron is equipped with a vibration motor, which keeps the soldering rod in a micro-vibration state during operation. This micro-vibration effectively reduces the residual solder on the outer surface of the soldering rod, thus facilitating its self-cleaning.

[0016] 3. In this utility model, the piston seat is moved backward, thereby blowing the gas in the exhaust gas chamber into the front gas chamber. After the gas enters the front gas chamber, it drives the soldering rod to extend out from the inside of the rocker shell. When the handle is in a non-pressurized state, the piston seat moves backward. Under the action of the second spring, the soldering rod retracts into the rocker shell and provides anti-scalding protection for this soldering iron. Through the setting of the heat conduction groove and the regular polygonal cross-section of the heating rod, the soldering rod can be driven synchronously when the heating rod rotates. The rotation of the soldering rod facilitates the all-round removal of solder on the outer circumference of the soldering rod. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an adjustable-blade soldering iron according to the present invention;

[0018] Figure 2 This utility model Figure 1 A schematic diagram of the cross-sectional structure;

[0019] Figure 3 This utility model Figure 2 A magnified schematic diagram of the partial structure at point A in the middle;

[0020] Figure 4 This is a schematic diagram of the structure of the rocking shell and the vibration motor of this utility model;

[0021] Figure 5 This utility model Figure 4 A magnified view of the structure at point B in the middle;

[0022] Figure 6 This is a schematic diagram of the structure of the soldering rod and handle of this utility model;

[0023] Figure 7 This is a schematic diagram of the soldering rod and connecting shaft of this utility model.

[0024] In the diagram: 1. Grip shell; 2. Handle; 3. Exhaust chamber; 4. Piston seat; 5. Connecting rod; 6. First spring; 7. Shaking shell; 8. Heating rod; 9. Front chamber; 10. Soldering rod; 11. Guide ring; 12. Vibration motor; 13. Second spring; 14. Gear plate; 15. Gear shaft; 16. Tail shaft; 17. Front gear; 18. Connecting shaft; 19. Rotating shaft; 20. Hinge shaft; 21. Toggle button; 22. Rear gear; 23. Wire brush plate; 24. Compression spring. Detailed Implementation

[0025] 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.

[0026] like Figures 1 to 7 As shown, this utility model provides an adjustable soldering iron, including a grip shell 1, two symmetrically arranged handles 2 are slidably connected to the inner wall of the grip shell 1, an exhaust chamber 3 is opened inside the grip shell 1, a piston seat 4 is slidably connected to the inner wall of the exhaust chamber 3, a connecting rod 5 is hinged between the two handles 2 and the piston seat 4, and a first spring 6 that cooperates with the piston seat 4 is installed inside the exhaust chamber 3.

[0027] The grip shell 1 is equipped with a drive module that is driven by the displacement of the piston seat 4. The end of the grip shell 1 is hinged to a rocker shell 7, and a rocking module that drives the rocker shell 7 to rock is installed on the grip shell 1.

[0028] The rocking module includes a rotating shaft 19 rotatably connected to the inner wall of the grip shell 1. A hinge shaft 20 is installed on both sides of the rocking shell 7. Both hinge shafts 20 are rotatably connected to the grip shell 1. A second bevel gear is installed on both the rotating shaft 19 and the hinge shaft 20. The two second bevel gears mesh with each other.

[0029] A toggle button 21 is rotatably mounted at the tail of the grip shell 1. A rear gear 22 is mounted on both the toggle button 21 and the rotating shaft 19. The two rear gears 22 mesh with each other.

[0030] When using this soldering iron, the user holds the grip shell 1 with one hand. When the grip shell 1 is gripped tightly, the two handles 2 are under pressure. After the two handles 2 are under pressure, the piston seat 4 is driven to move through the linkage 5. When the user needs to change the angle between the rocker shell 7 and the grip shell 1, the user can turn the toggle button 21 with the index finger of one hand to change the angle between the rocker shell 7 and the grip shell 1.

[0031] The inner wall of the rocker shell 7 is rotatably mounted with an electric heating rod 8 driven by a drive module;

[0032] The tail of the grip shell 1 is equipped with an electric wire, which is electrically connected to the electric heating rod 8 through a flexible wire.

[0033] The drive module includes a gear plate 14 mounted on the back of the piston seat 4, a gear shaft 15 and a tail shaft 16 rotatably connected inside the grip shell 1. A first bevel gear is mounted on both the gear shaft 15 and the tail shaft 16. The two first bevel gears mesh with each other. A front gear 17 that is connected to the gear plate 14 is mounted on the gear shaft 15. A connecting shaft 18 is hinged between the tail shaft 16 and the electric heating rotating rod 8.

[0034] When the piston seat 4 is displaced, it drives the toothed plate 14 to move. After the toothed plate 14 moves, it is connected to the front gear 17 through meshing, which ultimately causes the drive shaft and tail shaft 16 to rotate. After the tail shaft 16 rotates, it drives the electric heating rod 8 to rotate through the connecting shaft 18. After the electric heating rod 8 rotates, it is convenient for the wire brush plate 23 to brush off the residual solder on the surface of the soldering rod 10.

[0035] By setting the hinge structure between the connecting shaft 18, the tail shaft 16, and the electric heating rod 8, the tail shaft 16 can continuously drive the electric heating rod 8 when the included angle between the rocking shell 7 and the grip shell 1 changes.

[0036] The inside of the rocker shell 7 is provided with a front air chamber 9, which is connected to the tail air chamber 3 through a corrugated connecting pipe. A sliding soldering rod 10 is sleeved on the electric heating rotating rod 8.

[0037] The inside of the soldering rod 10 is fixedly provided with a heat-conducting groove with an opening at the tail end and which is slidably connected to the electric heating rod 8. The cross-sections of the heat-conducting groove and the electric heating rod 8 are both regular polygons.

[0038] By setting the heat-conducting groove and the regular polygonal cross-section of the electric heating rotating rod 8, the soldering rod 10 can be driven synchronously when the electric heating rotating rod 8 rotates. The rotation of the soldering rod 10 facilitates the all-round removal of solder from the outer peripheral surface of the soldering rod 10.

[0039] A guide ring 11 is installed on the outer periphery of the soldering rod 10 and is slidably connected to the front air chamber 9. A set of vibration motors 12 is installed on the back of the guide ring 11. A second spring 13 that cooperates with the guide ring 11 is provided inside the front air chamber 9. A set of solder dross removal modules that cooperate with the soldering rod 10 is installed on the rocker shell 7.

[0040] When the grip shell 1 is gripped, the two grips 2 are under pressure. After the two grips 2 are under pressure, the piston seat 4 is driven to move through the setting of the connecting rod 5. After the piston seat 4 moves, the gas in the exhaust gas chamber 3 is blown into the front gas chamber 9. After the gas enters the front gas chamber 9, it drives the cautery rod 10 to extend out from the inside of the shaker shell 7.

[0041] When the handle 2 is in an unpressurized state, the piston seat 4 moves backward, and under the action of the second spring 13, the soldering rod 10 retracts into the rocker shell 7 to provide anti-scalding protection for the soldering iron.

[0042] The tin dross removal module includes a wire brush plate 23 hinged to the rocker housing 7, and a compression spring 24 is installed between the wire brush plate 23 and the rocker housing 7.

[0043] Working principle and usage process of this utility model:

[0044] When using this soldering iron, the user holds the handle 1 with one hand. When the handle 1 is gripped tightly, both handles 2 are under pressure. This pressure, through the linkage 5, drives the piston seat 4 to move. When the user needs to change the angle between the rocker shell 7 and the handle 1, the user can use their index finger to turn the toggle button 21, thus changing the angle. After the piston seat 4 moves, the gas in the exhaust chamber 3 is forced into the front gas chamber 9. The gas then drives the soldering rod 10 to extend from inside the rocker shell 7. When the handles 2 are not under pressure... The piston seat 4 moves backward, and under the action of the second spring 13, the soldering rod 10 retracts into the rocker shell 7 to provide anti-scalding protection for the soldering iron. Through the setting of the heat conduction groove and the regular polygonal cross-section of the heating rod 8, the soldering rod 10 can be synchronously driven when the heating rod 8 rotates. The rotation of the soldering rod 10 facilitates the all-round removal of solder from the outer circumference of the soldering rod 10. Through the setting of the vibration motor 12, the soldering rod 10 is in a micro-vibration state during operation. The micro-vibration of the soldering rod 10 effectively reduces the residual rate of solder on the outer circumference of the soldering rod 10, thereby facilitating the self-cleaning of the soldering rod 10.

[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable-blade soldering iron, comprising a grip (1), characterized in that: The inner wall of the grip shell (1) is slidably connected to two symmetrically arranged handles (2). An exhaust gas chamber (3) is provided inside the grip shell (1). A piston seat (4) is slidably connected to the inner wall of the exhaust gas chamber (3). A connecting rod (5) is hinged between each of the two handles (2) and the piston seat (4). A first spring (6) cooperating with the piston seat (4) is installed inside the exhaust gas chamber (3). A drive module driven by the displacement of the piston seat (4) is installed inside the grip shell (1). A rocker shell (7) is hinged to the end of the grip shell (1). A rocking module that drives the rocker shell (7) to rock is installed on the grip shell (1). The inner wall of the 7 is rotatably mounted with an electric heating rod (8) driven by a drive module. The inside of the 7 is provided with a front air chamber (9), which is connected to the exhaust air chamber (3) through a corrugated pipe. A sliding soldering rod (10) is sleeved on the electric heating rod (8). A guide ring (11) that is slidably connected to the front air chamber (9) is installed on the outer periphery of the soldering rod (10). A set of vibration motors (12) is installed on the back of the guide ring (11). A second spring (13) that cooperates with the guide ring (11) is provided inside the front air chamber (9). A set of solder dross removal modules that cooperate with the soldering rod (10) is installed on the 7.

2. The adjustable-blade soldering iron according to claim 1, characterized in that: The drive module includes a toothed plate (14) mounted on the back of the piston seat (4), a toothed shaft (15) and a tail shaft (16) rotatably connected inside the grip shell (1). A first bevel gear is mounted on both the toothed shaft (15) and the tail shaft (16), and the two first bevel gears mesh with each other. A front gear (17) that is drivenly connected to the toothed plate (14) is mounted on the toothed shaft (15). A connecting shaft (18) is hinged between the tail shaft (16) and the electric heating rod (8).

3. The adjustable-blade soldering iron according to claim 1, characterized in that: The rocking module includes a rotating shaft (19) rotatably connected to the inner wall of the grip shell (1). A hinge shaft (20) is installed on both sides of the rocking shell (7). Both hinge shafts (20) are rotatably connected to the grip shell (1). A second bevel gear is installed on both the rotating shaft (19) and one of the hinge shafts (20). The two second bevel gears mesh with each other. A toggle button (21) is rotatably installed at the tail of the grip shell (1). A rear gear (22) is installed on both the toggle button (21) and the rotating shaft (19). The two rear gears (22) mesh with each other.

4. The adjustable-blade soldering iron according to claim 1, characterized in that: The inside of the tincture rod (10) is fixedly provided with a heat-conducting groove with an opening at the tail end and which is slidably connected to the electric heating rod (8). The cross-sections of the heat-conducting groove and the electric heating rod (8) are both regular polygons.

5. The adjustable-blade soldering iron according to claim 1, characterized in that: The tail of the grip shell (1) is equipped with an electric wire, which is electrically connected to the electric heating rod (8) via a flexible wire.

6. The adjustable-tip soldering iron according to claim 1, characterized in that: The tin dross removal module includes a wire brush plate (23) hinged to the rocker shell (7), and a compression spring (24) is installed between the wire brush plate (23) and the rocker shell (7).

Citation Information

Patent Citations

  • Electric soldering iron with adjustable tool bit

    CN220050346U