Combined electric soldering bit

Abstract

The utility model relates to the technical field of electric soldering irons, and discloses a combined electric soldering bit which comprises a handle, a shell and a soldering iron core, a fixing head is fixedly installed at the bottom end of the soldering iron core, and positioning holes are formed in the outer circumference of the fixing head at equal intervals. The end portion of a screwdriver extrudes a second fastening screw in a through hole, a corresponding soldering bit can draw close to a soldering iron core along a containing groove till a clamping head on the top of the soldering bit is connected with the outer portion of a fixing head, at the moment, a guide block slides to the inner end portion of a magnetic attraction guide plate, the clamping head and the fixing head are fixed by screwing the second fastening screw, and therefore the soldering bit can be fixed. At the moment, the connecting block is pushed, so that the soldering iron core slides downwards in the guide groove through the connecting block, the soldering iron heads can move downwards to extend out of the cavity, in this way, the multiple sets of soldering iron heads in the shell can be switched for use according to application scenes, and the application scene applicability of the electric soldering iron is improved.

Description

Technical Field

[0001] This utility model relates to the field of soldering iron technology, specifically a combined soldering iron tip. Background Technology

[0002] A multi-tip soldering iron is a soldering tool equipped with multiple independent or switchable soldering tips. It can simultaneously or quickly switch between soldering tips of different temperatures and shapes, making it suitable for scenarios that require frequent changes in soldering parameters or efficient completion of multiple solder joints.

[0003] For example, Chinese Patent Publication No. CN215787313U discloses a multi-head soldering iron for a stepper motor driver, including a protective shell and a connecting wire. One end of the connecting wire is fixedly connected to the protective shell, and the other end of the connecting wire is fixedly connected to a handle. The surface of the handle is provided with an external thread, and the surface of the external thread is threaded with an internal threaded cylinder.

[0004] The aforementioned comparative document describes a method that involves setting up an internally threaded cylinder. Rotating the internally threaded cylinder allows it to slide along the external thread on the handle, releasing the contact between the internally threaded cylinder and the soldering iron tip. Rotating the roller drives the soldering iron tip to rotate along the shaft, allowing the second soldering iron tip stored in the storage slot to be rotated out and into the first soldering iron tip, or vice versa. Then, the internally threaded cylinder is twisted in the opposite direction to bring the internally threaded cylinder and the soldering iron tip into contact again, locking the position of the soldering iron tip. This achieves the effect of conveniently changing soldering iron tips of different sizes.

[0005] However, in actual use, this combination soldering iron can only carry two sets of soldering tips for switching, which still has a significant limitation on the applicable scenarios of the soldering tips. Furthermore, when switching between different sized soldering tips, there is a risk of direct contact with the soldering tip, which could cause burns. Utility Model Content

[0006] The purpose of this invention is to provide a modular soldering iron tip. This modular soldering iron tip allows for the carrying and switching of multiple different types of soldering iron tips, making it applicable to a wider range of scenarios. Furthermore, it reduces direct contact with the soldering iron tip when changing tips, thus avoiding the risk of burns.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a combined soldering iron tip, comprising a handle, a housing, and a soldering iron core. A fixing head is fixedly installed at the bottom of the soldering iron core. Positioning holes are evenly spaced on the outer circumference of the fixing head. A clearance groove is formed in the middle of the inner cavity of the housing. A pad is provided in the inner cavity of the clearance groove. A stop rod, a soldering iron tip, and an adjustment component are evenly spaced near the bottom of the inner cavity of the housing. A locking head is integrally formed on the top of the soldering iron tip. The adjustment component includes a magnetic guide plate. A guide block is slidably connected inside the magnetic guide plate. A second fastening screw is movably connected through the guide block.

[0008] Preferably, a guide groove is provided through one side of the outer side of the housing, a placement groove is provided near the bottom of the inner cavity of the housing, a cavity is provided through the middle of the clearance groove, and a through hole is provided through the inner wall of the placement groove, and multiple sets of the placement grooves match the outer contour of the corresponding soldering iron tip.

[0009] Preferably, a connecting block is fixedly installed on one side of the soldering iron core, the connecting block slides inside the guide groove, and a first fastening screw is threadedly installed on the inclined surface of the outer end of the connecting block.

[0010] Preferably, the pad slides within the inner wall of the relief groove, and a first reset spring is fixedly installed between the bottom surface of the pad and the inner wall of the relief groove.

[0011] Preferably, the push rod extends through the inner cavity of the housing, and each set of push rods and the corresponding soldering iron tip are located on the same vertical plane. A second return spring is fixedly installed between the push rod and the outer side of the housing.

[0012] Preferably, the card head has a hollow semi-circular structure, and the opening on one side of the card head corresponds to the fixing head.

[0013] Preferably, the multiple sets of through holes correspond one-to-one with the multiple sets of second fastening screws, a compression spring is fixedly installed between the guide block and the clamping head, and the multiple sets of clamping heads are respectively connected to the corresponding positioning holes on the outside of the fixing head through the corresponding second fastening screws.

[0014] Preferably, the bottom surface of the magnetic guide plate has a U-shaped structure, and the bottom ends of the multiple sets of card heads are respectively in a gap fit with the cavity.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention allows the soldering iron tip to move towards the soldering iron core along the placement groove by pressing the second fastening screw in the through hole with the end of a screwdriver until the top of the soldering iron tip is connected to the outside of the fixing head. At this point, the guide block slides to the inner end of the magnetic guide plate. By tightening the second fastening screw, the clip and the fixing head are fixed. Then, by pushing the connecting block, the soldering iron core slides downward in the guide groove through the connecting block, allowing the soldering iron tip to move downward and extend out of the cavity. This enables multiple sets of soldering iron tips inside the housing to be switched according to the applicable scenario, improving the applicability of the soldering iron.

[0017] This invention allows the soldering iron tip to be magnetically attracted by the guide block on one side of the clip and the corresponding magnetic guide plate above after the first fastening screw is loosened. At this time, by loosening the second fastening screw, the push rod is pressed, causing the inner end of the push rod to slide the corresponding soldering iron tip guide block along the U-shaped groove below the magnetic guide plate to the initial position. This allows for the replacement of soldering iron tips without direct contact, reducing the risk of burns from residual heat of the soldering iron tip. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the fracture structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the shell in this utility model;

[0021] Figure 4 This is a schematic diagram of a partial internal structure of the shell in this utility model;

[0022] Figure 5 for Figure 4 A magnified schematic diagram of the structure at point A in the middle.

[0023] In the diagram: 1. Handle; 2. Housing; 3. Soldering iron core; 4. Pad; 5. Support rod; 6. Soldering iron tip; 7. Adjustment component; 21. Guide groove; 22. Placement groove; 23. Relief groove; 24. Cavity; 25. Through hole; 31. Connecting block; 32. First fastening screw; 33. Fixing head; 331. Positioning hole; 41. First return spring; 51. Second return spring; 61. Clip; 71. Magnetic guide plate; 72. Guide block; 73. Second fastening screw; 74. Compression spring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Please see Figure 1-5 This utility model provides a technical solution: a combined electric soldering iron tip, including a handle 1, a housing 2, and a soldering iron core 3. A fixing head 33 is fixedly installed at the bottom end of the soldering iron core 3. Positioning holes 331 are evenly spaced on the outer circumference of the fixing head 33. A relief groove 23 is provided in the middle of the inner cavity of the housing 2. A pad 4 is provided in the inner cavity of the relief groove 23.

[0026] The inner cavity of the housing 2 is provided with a stop bar 5, a soldering tip 6 and an adjustment component 7 at equal intervals near the bottom. The top of the soldering tip 6 has a clip 61 integrally formed. The adjustment component 7 includes a magnetic guide plate 71. A guide block 72 is slidably connected inside the magnetic guide plate 71. A second fastening screw 73 is movably connected through the guide block 72.

[0027] Among them, a guide groove 21 is provided through one side of the outer side of the housing 2, and a placement groove 22 is provided near the bottom of the inner cavity of the housing 2. A cavity 24 is provided through the middle of the clearance groove 23. A through hole 25 is provided through the inner wall of the placement groove 22. Multiple sets of placement grooves 22 match the outer contour of the corresponding soldering iron tip 6. By pressing the second fastening screw 73 in the through hole 25 with the end of the screwdriver, the corresponding soldering iron tip 6 can move towards the soldering iron core 3 along the placement groove 22.

[0028] A connecting block 31 is fixedly installed on one side of the soldering iron core 3. The connecting block 31 slides inside the guide groove 21. A first fastening screw 32 is threadedly installed on the outer inclined surface of the connecting block 31. The pad 4 slides in the inner wall of the relief groove 23. A first reset spring 41 is fixedly installed between the bottom surface of the pad 4 and the inner wall of the relief groove 23. After loosening the first fastening screw 32, the soldering iron core 3 is reset by the first reset spring 41 at the bottom of the pad 4. The guide block 72 on one side of the clip 61 is magnetically attracted to the corresponding magnetic guide plate 71 above. At this time, the positioning of the soldering iron tip 6 installed at the bottom of the soldering iron core 3 can be released by loosening the second fastening screw 73.

[0029] The abutment 5 extends into the inner cavity of the housing 2. Each set of abutment 5 and the corresponding soldering tip 6 are located on the same vertical plane. A second return spring 51 is fixedly installed between the abutment 5 and the outer side of the housing 2. When replacing the soldering tip 6 assembled at the bottom of the soldering core 3, the soldering tip 6 at the bottom of the soldering core 3 is first released from its positioning. At this time, by pressing the abutment 5, the second return spring 51 is compressed, so that the inner end of the abutment 5 slides the corresponding soldering tip 6 guide block 72 along the U-shaped groove below the magnetic guide plate 71 to the initial position, so that the soldering tip 6 can be replaced without direct contact.

[0030] The clamp head 61 has a hollow semi-circular structure. One side opening of the clamp head 61 corresponds to the fixing head 33. Multiple sets of through holes 25 correspond one-to-one with multiple sets of second fastening screws 73. A compression spring 74 is fixedly installed between the guide block 72 and the clamp head 61. The multiple sets of clamp heads 61 are respectively connected to the corresponding positioning holes 331 on the outside of the fixing head 33 through the corresponding second fastening screws 73. The bottom surface of the magnetic guide plate 71 has a U-shaped structure. The bottom ends of the multiple sets of clamp heads 61 are respectively in clearance fit with the cavity 24. The clamp head 61 is pressed by the end of a screwdriver. The second fastening screw 73 in the through hole 25 allows the corresponding soldering tip 6 to move towards the soldering core 3 along the placement groove 22 until the top clip 61 of the soldering tip 6 is connected to the outside of the fixing head 33. At this time, the guide block 72 slides to the inner end of the magnetic guide plate 71. By tightening the second fastening screw 73, the clip 61 is fixed to the fixing head 33. By loosening the second fastening screw 73, the spring 74 and the guide block 72 gradually release the elastic force, while preventing the second fastening screw 73 from falling off the outside of the clip 61.

[0031] In this embodiment, the top of the soldering iron core 3 is electrically connected via a connecting wire, and the soldering iron core 3 can slide inside the housing 2. After the soldering iron core 3 is assembled with multiple sets of soldering iron tips 6 at the bottom, the soldering iron tips 6 can be heated.

[0032] In this embodiment, by pressing the second fastening screw 73 in the through hole 25 with the end of a screwdriver, the corresponding soldering tip 6 can move along the placement groove 22 toward the soldering core 3 until the top clip 61 of the soldering tip 6 is connected to the outside of the fixing head 33. At this time, the guide block 72 slides to the inner end of the magnetic guide plate 71. By tightening the second fastening screw 73, the clip 61 is fixed to the fixing head 33. Then, by pushing the connecting block 31, the soldering core 3 slides down in the guide groove 21 through the connecting block 31, so that the soldering tip 6 can move down and press the first reset spring 41 under the pad block 4 and extend out from the cavity 24. In this way, multiple sets of soldering tips 6 inside the housing 2 can be switched for use according to the applicable scenario, which improves the applicability of the soldering iron.

[0033] In this embodiment, after loosening the first fastening screw 32, the soldering iron core 3 is reset by the first reset spring 41 at the bottom of the pad block 4, and the guide block 72 on one side of the clip 61 is magnetically attracted to the corresponding magnetic guide plate 71 above. At this time, after loosening the second fastening screw 73, the push rod 5 is pressed, so that the inner end of the push rod 5 slides the corresponding soldering iron tip 6 guide block 72 along the U-shaped groove below the magnetic guide plate 71 to the initial position. This realizes that when replacing the soldering iron tip 6, it is not necessary to directly contact it to switch between different sizes of soldering iron tips 6, reducing the risk of burns from the residual heat of the soldering iron tip 6.

[0034] Working principle: When assembling the soldering tip 6, first press the end of the screwdriver into the second fastening screw 73 in the through hole 25, so that the corresponding soldering tip 6 can move along the placement groove 22 towards the soldering core 3 until the top clip 61 of the soldering tip 6 is connected to the outside of the fixing head 33. At this time, the guide block 72 slides to the inner end of the magnetic guide plate 71. By tightening the second fastening screw 73, the clip 61 is fixed to the fixing head 33. Then, by pushing the connecting block 31, the soldering core 3 slides down in the guide groove 21 through the connecting block 31, so that the soldering tip 6 can move down and press the first return spring 41 under the pad block 4, and then extend out from the cavity 24, thus completing the assembly of the soldering tip 6.

[0035] When switching soldering tip 6, after loosening the first fastening screw 32, the soldering core 3 is reset by the first reset spring 41 at the bottom of the pad 4. The guide block 72 on one side of the clip 61 is magnetically attracted to the corresponding magnetic guide plate 71 above. At this time, after loosening the second fastening screw 73, the push rod 5 is pressed, so that the inner end of the push rod 5 slides the corresponding soldering tip 6 guide block 72 along the U-shaped groove below the magnetic guide plate 71 to the initial position. Then, other sizes of soldering tip 6 can be switched according to the above assembly steps.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications can be made to these embodiments without departing from the principles of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A combined soldering iron tip, comprising a handle (1), a housing (2), a soldering iron core (3), characterized in that: The soldering iron core (3) is fixedly installed with a fixing head (33) at the bottom. The fixing head (33) has positioning holes (331) at equal intervals on its outer circumference. The housing (2) has a relief groove (23) in the middle of its inner cavity. A pad (4) is provided in the relief groove (23). The housing (2) has a stop rod (5), a soldering iron tip (6), and an adjustment component (7) at equal intervals near the bottom. The soldering iron tip (6) has a clip (61) integrally formed on its top. The adjustment component (7) includes a magnetic guide plate (71). A guide block (72) is slidably connected inside the magnetic guide plate (71). A second fastening screw (73) is movably connected through the guide block (72).

2. The combination soldering tip of claim 1 wherein: A guide groove (21) is provided through one side of the outer side of the housing (2), and a placement groove (22) is provided near the bottom of the inner cavity of the housing (2). A cavity (24) is provided through the middle of the clearance groove (23), and a through hole (25) is provided through the inner wall of the placement groove (22). Multiple sets of placement grooves (22) match the outer contour of the corresponding soldering iron tip (6).

3. A combination soldering iron tip as defined in claim 2, wherein: A connecting block (31) is fixedly installed on one side of the outside of the soldering iron core (3). The connecting block (31) slides inside the guide groove (21). A first fastening screw (32) is installed on the outer inclined surface of the connecting block (31) by thread.

4. The combination soldering tip of claim 3 wherein: The pad (4) slides in the inner wall of the relief groove (23), and a first reset spring (41) is fixedly installed between the bottom surface of the pad (4) and the inner wall of the relief groove (23).

5. The combination soldering tip of claim 4 wherein: The push rod (5) extends into the inner cavity of the housing (2). Each set of push rods (5) and the corresponding soldering iron tip (6) are located on the same vertical plane. A second return spring (51) is fixedly installed between the push rod (5) and the outer side of the housing (2).

6. A modular soldering tip as defined in claim 5, wherein: The card head (61) has a hollow semi-circular structure, and the opening on one side of the card head (61) corresponds to the fixing head (33).

7. A modular iron tip as defined in claim 6, wherein: The multiple sets of through holes (25) correspond one-to-one with the multiple sets of second fastening screws (73). A compression spring (74) is fixedly installed between the guide block (72) and the clip (61). The multiple sets of clips (61) are respectively matched and connected to the positioning hole (331) on the outside of the fixing head (33) through the corresponding second fastening screw (73).

8. The combination soldering tip of claim 7 wherein: The bottom surface of the magnetic guide plate (71) is U-shaped, and the bottom ends of the multiple sets of card heads (61) are respectively in a gap fit with the cavity (24).

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