Electric soldering iron

Abstract

The utility model relates to an electric soldering iron, which relates to the technical field of welding devices, and comprises a holding part, a soldering iron sleeve fixedly connected with the holding part, a soldering iron core arranged in the soldering iron sleeve, and a soldering iron head arranged on one side, far away from the holding part, of the soldering iron core, the electric soldering iron is characterized in that the end portion of the soldering iron core is provided with a rotating groove allowing the soldering bit to be embedded in a rotating mode, and the side wall of the soldering iron sleeve is provided with a receding channel allowing the soldering bit to penetrate through in a rotating mode; the soldering iron sleeve is in threaded connection with a fixing screw, the fixing screw penetrates through the rotating groove and the soldering bit, the fixing screw is sleeved with a positioning piece, a nut part of the fixing screw is used for pressing the positioning piece on the side wall of the soldering iron sleeve, a positioning protrusion is arranged on the positioning piece, and a positioning hole allowing the positioning protrusion to be embedded in is formed in the soldering bit. The welding angle adjusting device has the effect of conveniently adjusting the welding angle of a product so as to improve the welding quality and the welding efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of welding devices, and in particular to an electric soldering iron. Background Art

[0002] Electric soldering irons are widely used as essential tools for the manufacture and repair of electronic equipment. The main working principle is to heat the resistance wire through electric current, and then heat the soldering iron core through heat conduction. Electric soldering irons are often used in conjunction with welding wires, where the welding wires are often made of metal tin. A soldering iron tip is provided at the end of the soldering iron core. The soldering iron tip heats and melts the soldering wire, and the melted soldering wire drips onto the joints of the product, thereby spot welding the relevant parts of the product.

[0003] With respect to the above-mentioned related technologies, the inventors have found the following defects: the soldering iron tip is usually fixed to the soldering iron core by welding or bolting, and the soldering iron core is usually in the same straight line with the soldering iron tip. Due to the different shapes of different products, it is necessary to perform electric welding on the products at different angles, especially for welding in recessed positions such as in grooves. At this time, if the soldering iron core and the soldering iron tip are still in the same straight line, the staff cannot perform welding at the best angle for the welding point, which affects the welding efficiency and also has a negative impact on the welding quality. Utility Model Content

[0004] In order to facilitate the adjustment of the welding angle of the staff to improve the welding efficiency and welding quality, the present application provides an electric soldering iron.

[0005] The present application provides an electric soldering iron, which adopts the following technical solution:

[0006] An electric soldering iron, comprising a gripping portion, a soldering iron sleeve fixedly connected to the gripping portion, a soldering iron core arranged inside the soldering iron sleeve, and a soldering iron tip arranged on a side of the soldering iron core away from the gripping portion, characterized in that: a rotating groove for the soldering iron tip to be rotatably inserted is provided at the end of the soldering iron core, and a clearance passage for the soldering iron tip to be rotatably passed through is provided on the side wall of the soldering iron sleeve;

[0007] The soldering iron sleeve is threadedly connected with a fixing screw, which is inserted into the rotating groove and the soldering iron head. A positioning piece is sleeved on the fixing screw, and the nut part of the fixing screw is used to press the positioning piece against the side wall of the soldering iron sleeve. A positioning protrusion is provided on the positioning piece, and a positioning hole for the positioning protrusion to be embedded is provided on the soldering iron head.

[0008] By adopting the above technical solution, when adjusting the welding angle of the soldering iron tip, unscrew the fixing screw so that the soldering iron tip can rotate in the rotating groove. While rotating the soldering iron tip, the positioning protrusion is embedded in the positioning groove, so that the positioning piece and the soldering iron tip rotate synchronously. Then tighten the fixing screw with a tool to fix the angle of the positioning piece and the soldering iron tip. The relative rotation angle of the positioning piece itself is limited by the friction between the positioning piece and the soldering iron sleeve. At the same time, the positioning protrusion is embedded in the positioning hole, so that the position of the soldering iron tip is fixed. By adjusting the rotation angle of the soldering iron tip, it is convenient for the staff to adjust the welding angle, thereby improving the welding efficiency and welding quality.

[0009] Optionally, at least two positioning grooves for the positioning member to be embedded in are formed on the side wall of the soldering iron sleeve.

[0010] By adopting the above technical solution, by embedding the positioning piece into different positioning grooves, the position of the positioning piece is made more stable, thereby making the position of the soldering iron tip more stable, thereby improving the stability of the welding process.

[0011] Optionally, the positioning member includes a penetration portion and a connecting rod portion fixedly connected to the penetration portion, the positioning protrusion is arranged on the connecting rod portion, and the connecting rod portion is used to be embedded in the positioning groove.

[0012] By adopting the above technical solution and arranging the connecting rod, the cross-sectional area of ​​the portion of the positioning member embedded in the positioning groove is reduced, thereby reducing the size of the positioning groove and facilitating the opening of multiple positioning grooves in the limited space on the side wall of the soldering iron sleeve.

[0013] Optionally, a connecting portion is provided at the end of the soldering iron core, the rotating groove is opened on the connecting portion, the screw portion of the fixed screw includes an abutment column and a threaded column connected to the abutment column, the connecting portion is provided with an abutment groove for the abutment portion to be embedded and a fixing hole for the threaded column to pass through, and the radius of the abutment column is larger than the radius of the threaded column.

[0014] By adopting the above technical solution, the connection part can be further deformed by arranging the abutting column to abut the connection part, so that the connection part can better tighten the soldering iron tip in the rotating groove, making the position of the soldering iron tip more stable.

[0015] Optionally, a guide channel is provided on the connecting portion, and the guide channel is located between the abutment groove and the fixing hole. The abutment groove and the fixing hole are both connected to the guide channel, and the radius of the guide channel gradually decreases from one side close to the abutment groove to the other side.

[0016] By adopting the above technical solution, when inserting the fixing screw into the fixing hole, the threaded column passes through the abutment groove and the guide channel in sequence and finally enters the fixing hole. The guide channel is provided to facilitate the insertion of the fixing screw into the fixing hole, thereby facilitating the installation of the fixing screw.

[0017] By adopting the above technical solution, the tightness of the connection between the fixing screw and the soldering iron sleeve is improved.

[0018] Optionally, a circuit board is arranged inside the gripping portion, a heating wire is wound around the outside of the soldering iron core, a current-carrying conductor for connecting to the circuit board is connected to the heating wire, and an embedding groove for embedding the heating wire is provided on the outer wall of the soldering iron core.

[0019] By adopting the above technical solution, when the electric soldering iron is powered on, the soldering iron core is heated by the electric heating wire, and then the heat is transferred to the soldering iron tip. The embedded groove facilitates the fixing of the position of the electric heating wire and the conduction of heat.

[0020] Optionally, a conductive sheet is provided on the circuit board, an electrode sheet inserted into the holding portion is provided at the end of the soldering iron sleeve, the electrode sheet is used to abut against the conductive sheet, and one end of the current-carrying wire away from the heating wire is connected to the electrode sheet.

[0021] By adopting the above technical solution, the circuit board is electrically connected to the heating wire through the conductive sheet and the current-carrying wire, thereby heating the heating wire.

[0022] Optionally, a threaded barrel is provided at the end of the holding portion for the soldering iron sleeve to be slidably inserted, an abutment ring for abutting against the threaded barrel is provided on the outer wall of the soldering iron sleeve, a threaded sleeve is slidably provided on the outer wall of the soldering iron sleeve, and the threaded sleeve is threadedly connected to the threaded barrel.

[0023] By adopting the above technical solution, when installing the electric soldering iron, the soldering iron sleeve is inserted into the end of the holding part. At this time, the abutment ring limits the insertion depth of the soldering iron sleeve. Then, the threaded sleeve is threadedly connected to the threaded barrel, and the threaded sleeve is pressed against the abutment ring, so that the soldering iron sleeve is fixedly installed on the holding part.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] 1. The nut of the fixing screw is used to press the positioning piece against the outer wall of the soldering iron sleeve to lock the rotation angle of the positioning piece. At the same time, the positioning protrusion is embedded in the positioning hole to keep the rotation angle of the positioning piece and the soldering iron tip synchronized, thereby locking the rotation angle of the soldering iron tip;

[0026] 2. By setting the positioning groove to lock the rotation angle of the positioning piece, the position of the positioning piece and the soldering iron tip is more stable, which improves the stability of the electric soldering iron welding process;

[0027] 3. By setting the guide channel, it is convenient for the threaded column of the fixing screw to be inserted into the fixing hole, thereby facilitating the rapid installation of the fixing screw and further positioning of the soldering iron core. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the electric soldering iron in the embodiment of the present application.

[0029] Figure 2 It is an exploded structural diagram of the soldering iron sleeve and the gripping part in the embodiment of the present application.

[0030] Figure 3 It is a cross-sectional view of the electric soldering iron in the embodiment of the present application.

[0031] Figure 4 It is a schematic diagram of the structure of the soldering iron tip and the soldering iron sleeve in the embodiment of the present application.

[0032] Figure 5 It is a schematic diagram of the exploded structure of the soldering iron tip, the connecting part and the soldering iron sleeve in the embodiment of the present application.

[0033] Figure 6 It is a partial cross-sectional view of the soldering iron tip and the soldering iron sleeve in the embodiment of the present application.

[0034] Explanation of the reference numerals: 1. gripping portion; 11. circuit board; 12. conductive sheet; 13. threaded barrel; 2. soldering iron sleeve; 21. ceramic segment; 22. electrode sheet; 23. current-carrying wire; 24. heating wire; 25. abutment ring; 26. threaded sleeve; 27. clearance channel; 28. positioning groove; 3. soldering iron core; 31. embedding groove; 32. connecting portion; 33. plug-in ring; 34. rotating groove; 35. abutment groove; 36. guide channel; 37. fixing hole; 4. soldering iron tip; 41. positioning hole; 5. positioning piece; 51. penetration portion; 511. penetration hole; 52. connecting rod portion; 53. positioning protrusion; 6. fixing screw; 61. abutment column; 62. threaded column. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-6 This application is described in further detail.

[0036] The embodiment of the present application discloses an electric soldering iron.

[0037] Reference Figure 1 , Figure 2 as well as Figure 3The electric soldering iron comprises a gripping portion 1, a soldering iron sleeve 2 fixedly inserted in the gripping portion 1, a soldering iron core 3 arranged in the soldering iron sleeve 2, and a soldering iron tip 4 connected to the soldering iron core 3. A circuit board 11 is arranged in the gripping portion 1, and the circuit board 11 is electrically connected to a power supply device through a wire, for example, the circuit board 11 is powered by a plug inserted into a socket. A conductive sheet 12 is arranged on the circuit board 11, and an electrode sheet 22 for inserting into the gripping portion 1 is arranged at the end of the soldering iron sleeve 2, and the electrode sheet 22 is used to contact with the conductive sheet 12 to achieve electrical connection.

[0038] Reference Figure 2 and Figure 3 , a ceramic segment 21 is inserted and inserted at the end of the soldering iron sleeve 2, and an electrode sheet 22 is tightly sleeved on the ceramic segment 21. In this embodiment, two electrode sheets 22 are provided, and the two electrode sheets 22 are respectively a positive electrode sheet 22 and a negative electrode sheet 22. Correspondingly, two conductive sheets 12 are also provided, and the conductive sheets 12 are in a ring shape for the electrode sheets 22 to be inserted. Two groups of current-carrying wires 23 are provided inside the soldering iron sleeve 2, and the two groups of current-carrying wires 23 are respectively used to be electrically connected to the two electrode sheets 22, and can be specifically connected by spot welding. One end of the current-carrying wire 23 away from the electrode sheet 22 is electrically connected to a heating wire 24, and the heating wire 24 is wound around the soldering iron core 3. In this embodiment, the soldering iron core 3 is made of an insulating heat-conducting material, which can be specifically ceramic, a heat-conducting silicone sheet, etc. An embedding groove 31 for embedding the heating wire 24 is provided on the outer wall of the soldering iron core 3.

[0039] Reference Figure 2 and Figure 3 When the electric soldering iron is working, the two sets of current-carrying wires 23 are connected to the circuit board 11 through the electrode sheet 22. At this time, the two sets of current-carrying wires 23, the heating wire 24, the circuit board 11 and the electrode sheet 22 together form a closed loop. At this time, the heating wire 24 heats up, and then conducts heat to the soldering iron tip 4 through the soldering iron core 3.

[0040] Reference Figure 2 and Figure 3 The end of the gripping portion 1 is fixedly connected with a threaded barrel 13, and the soldering iron sleeve 2 is inserted into the gripping portion 1 through the threaded barrel 13. An abutment ring 25 is provided on the outer wall of the soldering iron sleeve 2, and the abutment ring 25 is used to abut against the threaded barrel 13 to limit the insertion depth of the soldering iron sleeve 2. A threaded sleeve 26 is slidably provided on the outer wall of the soldering iron sleeve 2, and the threaded sleeve 26 is threadedly connected with the threaded barrel 13 to achieve the fixation of the soldering iron sleeve 2.

[0041] Reference Figure 4 and Figure 5The end of the soldering iron core 3 is provided with a connecting portion 32, and the end of the connecting portion 32 is provided with a plug-in ring 33 that is tightly sleeved on the soldering iron core 3. A rotating groove 34 is provided inside the connecting portion 32 for the soldering iron tip 4 to rotate and pass through. At the same time, a clearance channel 27 is provided on the side wall of the soldering iron sleeve 2 for the soldering iron tip 4 to rotate through, so that the soldering iron tip 4 can rotate within a certain angle range. A fixing screw 6 is threadedly connected to the soldering iron sleeve 2, and the fixing screw 6 passes through the connecting portion 32 and the soldering iron tip 4 in the rotating groove 34 to serve as the rotating axis of the soldering iron tip 4.

[0042] Reference Figure 4 and Figure 5 The fixing screw 6 is sleeved with a positioning member 5, and the nut portion of the fixing screw 6 is used to press the positioning member 5 against the outer wall of the soldering iron sleeve 2. The positioning member 5 is provided with a positioning protrusion 53, and the soldering iron tip 4 is provided with a positioning hole 41 for the positioning protrusion 53 to be embedded.

[0043] Reference Figure 4 and Figure 5 When spot welding is performed on products with different surface features, it is necessary to adjust the rotation angle of the soldering iron tip 4 to improve the welding quality and welding efficiency. For example, when welding is required at the bottom or wall of the groove of the product, the soldering iron tip 4 and the soldering iron sleeve 2 need to maintain a certain bending angle to facilitate welding. At this time, it is necessary to loosen the fixing screw 6 by a tool, and when the soldering iron tip 4 can rotate at an angle in the rotating groove 34, it is sufficient, and it is not necessary to remove all the fixing screws 6. When the soldering iron tip 4 is rotated, the positioning member 5 is rotated synchronously, and then the fixing screw 6 is tightened to position the positioning member 5 and the soldering iron tip 4 at an angle. The angle of the soldering iron tip 4 is fixed by the positioning protrusion 53, so that the soldering iron tip 4 is not easy to rotate. Among them, during the loosening of the fixing screw 6, the positioning protrusion 53 slides axially in the positioning hole 41, but does not need to slide out of the positioning hole 41. At this time, the positioning member 5 and the soldering iron tip 4 can rotate synchronously. When the fixing screw 6 is tightened, the connecting portion 32 is deformed to a certain extent and squeezes the internal connecting portion 32 . The connecting portion 32 is also deformed accordingly and squeezes the soldering iron tip 4 in the rotating groove 34 , thereby locking the rotating angle of the soldering iron tip 4 .

[0044] Reference Figure 4 and Figure 5 At least two positioning grooves 28 are provided on the outer wall of the soldering iron sleeve 2 for the positioning member 5 to be inserted into. The positioning grooves 28 limit the position of the positioning member 5, making it more difficult for the positioning member 5 and the soldering iron tip 4 to rotate. In this embodiment, there are three positioning grooves 28, that is, the position of the soldering iron tip 4 has three rotation gears.

[0045] Reference Figure 5 The positioning member 5 includes a penetration portion 51 and a connecting rod portion 52 integrally connected to the penetration portion, and the positioning protrusion 53 is integrally connected to the connecting rod portion 52.

[0046] Reference Figure 5 and Figure 6 The screw rod portion of the fixing screw 6 includes an abutment column 61 connected to the nut portion of the fixing screw 6 and a threaded column 62 integrally connected to the abutment column 61, and the radius of the threaded column 62 is smaller than the radius of the abutment column 61. The abutment column 61 is inserted through the connecting portion 32. The connecting portion 32 is provided with an abutment groove 35 for the abutment column 61 to penetrate and a fixing hole 37 for the threaded column 62 to penetrate. The abutment column 61 is pressed against the connecting portion 32, so that the connecting portion 32 is deformed to a certain extent, and then the connecting portion 32 is pressed against the soldering iron tip 4 in the rotating groove 34.

[0047] Reference Figure 5 and Figure 6 A guide channel 36 is provided between the abutment groove 35 and the fixing hole 37. The guide channel 36 is in a truncated cone shape, and the radius of the guide channel 36 gradually decreases from the end close to the abutment groove 35 to the end far from the abutment groove 35. The guide channel 36 makes it easier to insert the fixing screw 6 into the fixing hole 37. In particular, when the position of the connecting portion 32 deviates to a certain extent, the fixing screw 6 interacts with the connecting portion 32, so that the position of the connecting portion 32 in the soldering iron sleeve 2 changes to a certain extent, and the position of the connecting portion 32 is adjusted, so that the plug-in ring 33 on the connecting portion 32 is better fitted on the soldering iron core 3.

[0048] Reference Figure 5 and Figure 6 , wherein the external thread of the threaded column 62 is not arranged on the entire threaded column 62 , but is only arranged at the bottom end of the threaded column 62 , and the threaded column 62 is not threadedly connected to the soldering iron tip 4 .

[0049] The implementation principle of an electric soldering iron in the embodiment of the present application is as follows: when adjusting the angle of the soldering iron tip 4, the fixing screw 6 is loosened by a tool, and at this time, the connecting portion 32 loosens the soldering iron tip 4, so that the soldering iron tip 4 can rotate in the rotating groove 34. Then, the rotating member can be lifted by a tool such as tweezers (the soldering iron tip 4 may still be in a high temperature state), and withdrawn from the positioning groove 28, and then the positioning member 5 is rotated. At this time, the positioning protrusion 53 has not completely withdrawn from the positioning hole 41, so that the positioning member 5 can drive the soldering iron tip 4 to rotate synchronously, and the connecting rod is embedded in different positioning grooves 28. Finally, the fixing screw 6 is tightened again to fix the soldering iron tip 4 and the positioning member 5.

[0050] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An electric soldering iron, comprising a gripping portion (1), a soldering iron sleeve (2) fixedly connected to the gripping portion (1), a soldering iron core (3) arranged inside the soldering iron sleeve (2), and a soldering iron tip (4) arranged on a side of the soldering iron core (3) away from the gripping portion (1), characterized in that: The end of the soldering iron core (3) is provided with a rotation groove (34) for the soldering iron head (4) to be rotatably inserted therein, and the side wall of the soldering iron sleeve (2) is provided with a clearance channel (27) for the soldering iron head (4) to be rotatably passed therethrough; The soldering iron sleeve (2) is threadedly connected with a fixing screw (6), the fixing screw (6) is inserted into the rotating groove (34) and the soldering iron head (4), a positioning piece (5) is sleeved on the fixing screw (6), the nut portion of the fixing screw (6) is used to press the positioning piece (5) against the side wall of the soldering iron sleeve (2), a positioning protrusion (53) is provided on the positioning piece (5), and a positioning hole (41) is provided on the soldering iron head (4) for the positioning protrusion (53) to be embedded.

2. The electric soldering iron according to claim 1, characterized in that: At least two positioning grooves (28) for the positioning member (5) to be embedded are provided on the side wall of the soldering iron sleeve (2).

3. The electric soldering iron according to claim 2, characterized in that: The positioning member (5) comprises a penetration portion (51) and a connecting rod portion (52) fixedly connected to the penetration portion (51); the positioning protrusion (53) is arranged on the connecting rod portion (52); and the connecting rod portion (52) is used to be embedded in the positioning groove (28).

4. The electric soldering iron according to claim 1, characterized in that: The end of the soldering iron core (3) is provided with a connecting portion (32), the rotating groove (34) is opened on the connecting portion (32), the screw rod part of the fixing screw comprises an abutting column (61) and a threaded column (62) connected to the abutting column (61), the connecting portion (32) is provided with an abutting groove (35) for the abutting column (61) to be embedded and a fixing hole (37) for the threaded column (62) to pass through, and the radius of the abutting column (61) is greater than the radius of the threaded column (62).

5. The electric soldering iron according to claim 4, characterized in that: The connecting portion (32) is provided with a guide channel (36), the guide channel (36) is located between the abutting groove (35) and the fixing hole (37), the abutting groove (35) and the fixing hole (37) are both connected to the guide channel (36), and the radius of the guide channel (36) gradually decreases from one side close to the abutting groove (35) to the other side.

6. The electric soldering iron according to claim 1, characterized in that: A circuit board (11) is arranged inside the gripping portion (1), a heating wire (24) is wound around the outside of the soldering iron core (3), a current-carrying wire (23) for connecting to the circuit board (11) is connected to the heating wire (24), and an embedding groove (31) for embedding the heating wire (24) is provided on the outer wall of the soldering iron core (3).

7. The electric soldering iron according to claim 6, characterized in that: The circuit board (11) is provided with a conductive sheet (12), the end of the soldering iron sleeve (2) is provided with an electrode sheet (22) inserted into the holding portion (1), the electrode sheet (22) is used to abut against the conductive sheet (12), and one end of the current-carrying wire (23) away from the heating wire (24) is connected to the electrode sheet (22).

8. The electric soldering iron according to claim 7, characterized in that: The end of the holding portion (1) is provided with a threaded barrel (13) for the soldering iron sleeve (2) to be slidably inserted, the outer wall of the soldering iron sleeve (2) is provided with an abutment ring (25) for abutting against the threaded barrel (13), and the outer wall of the soldering iron sleeve (2) is slidably provided with a threaded sleeve (26), and the threaded sleeve (26) is threadedly connected to the threaded barrel (13).

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