Electric soldering iron with telescopic structure

Abstract

The utility model relates to the technical field of electric soldering irons, and discloses an electric soldering iron with a telescopic structure, which comprises a shell, a rotary protection tube is rotatably mounted at the end of the shell, a ventilation and heat dissipation component is arranged on the rotary protection tube, an ironing rod is arranged on the inner side of the rotary protection tube, and a steel wire brush ring attached to the ironing rod is mounted on the inner wall of the rotary protection tube. A telescopic table is slidably mounted in the shell, a reset spring is mounted between the telescopic table and the rotary protection pipe, the ironing rod is rotatably mounted on the telescopic table, two pressing handles are slidably connected to the inner wall of the shell, a connecting rod is hinged between each pressing handle and the telescopic table, and a self-power-off assembly linked with the pressing handles is arranged in the shell. According to the tin soldering device, when the two pressing handles are in a non-pressing state, under the action of the reset spring, the soldering rod is retracted into the rotary protection tube and carries out anti-scalding protection on a user or other personnel, and when the two pressing handles are in a pressing state or the shell is in a holding state, under the action of the connecting rod, the soldering rod extends out of the inner side of the rotary protection tube and carries out tin soldering operation.

Description

Technical Field

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

[0002] Existing technology, patent document CN215468655U, discloses a retractable soldering iron, including a soldering iron handle, a soldering iron rod, and a soldering iron tip. The soldering tip is fixedly mounted on the soldering iron rod, and the soldering iron rod is fixedly mounted on the soldering iron handle. The soldering tip has a flat structure, and the soldering iron rod is a retractable structure, including multiple telescopic rods. The ends of the multiple telescopic rods are interlocked, and a positioning mechanism is provided at the junction of two telescopic rods. In the above device, the soldering iron rod is a retractable structure, which can adjust the length of the soldering iron. However, the above soldering iron has the following problems when in use:

[0003] 1. It is not convenient to achieve anti-scalding protection for soldering irons through an automatic telescopic structure;

[0004] 2. It is not convenient to achieve automatic power on / off and anti-dry burning protection of the soldering iron through a linkage mechanical structure;

[0005] 3. It is not convenient to achieve self-removal of residual solder on the soldering iron;

[0006] Based on this, the present invention provides a soldering iron with a telescopic structure to solve the technical problems mentioned in the background art. Utility Model Content

[0007] To overcome the shortcomings of existing technologies, this utility model provides a soldering iron with a telescopic structure. In this utility model, when the two handles are not pressed, the soldering rod retracts into the inner side of the protective tube under the action of the return spring, providing anti-scalding protection for the user or other personnel. When the two handles are pressed or the shell is held, the soldering rod extends from the inner side of the protective tube under the action of the connecting rod and performs soldering operations. When the two handles are pressed simultaneously, the soldering rod is energized and heats up. When either of the two handles is not pressed, the soldering rod is de-energized. Through the above-mentioned self-power-off structure, the self-power-off protection of the soldering rod in the non-use state is realized, and the danger to personnel caused by the dry burning of the heating element and the soldering rod is avoided.

[0008] To achieve the above objectives, this utility model provides the following technical solution: an electric soldering iron with a telescopic structure, comprising a housing, a protective tube rotatably mounted at the end of the housing, a ventilation and heat dissipation assembly on the protective tube, a soldering rod on the inner side of the protective tube, a wire brush ring fitted to the soldering rod on the inner wall of the protective tube, a telescopic platform slidably mounted inside the housing, a return spring installed between the telescopic platform and the protective tube, the soldering rod rotatably mounted on the telescopic platform, two pressure handles slidably connected to the inner wall of the housing, each pressure handle being hinged to the telescopic platform by a connecting rod, a self-power-off assembly linked to the pressure handles inside the housing, a heat transfer column rotatably mounted on the inner wall of the housing, the heat transfer column being slidably linked to the soldering rod, and a transmission module driven by the movement of the telescopic platform installed inside the housing, the soldering rod and the protective tube being driven by the transmission module and rotating coaxially in opposite directions.

[0009] As a preferred technical solution of this utility model, the ventilation and heat dissipation component includes a ventilation mesh surface disposed on the housing, and a plurality of heat dissipation holes arranged in a circular array are opened on the spiral protective tube at a position corresponding to the inner side of the ventilation mesh surface. A set of fan plates arranged in a circular array are installed on the spiral protective tube, and the set of fan plates and the plurality of heat dissipation holes are arranged in pairs on the spiral protective tube.

[0010] As a preferred embodiment of this utility model, the transmission module includes a gear shaft rotatably connected to the inner wall of the housing and a gear plate fixedly installed on the telescopic platform. A driven gear is installed on the gear shaft, and the driven gear is connected to the gear plate in a driving connection. A bevel gear is installed on both the gear shaft and the heat transfer column, and the two bevel gears mesh with each other. A synchronous shaft is rotatably installed on the inner wall of the housing, and the synchronous shaft is connected to the heat transfer column in a driving connection via a belt. A linkage gear is installed on both the synchronous shaft and the rotating protective tube, and the two linkage gears mesh with each other.

[0011] As a preferred embodiment of this utility model, a driven ring is rotatably mounted on the telescopic platform, and the driven ring is fixedly connected to a return spring.

[0012] As a preferred technical solution of this utility model, the inside of the soldering rod is fixedly provided with a heat transfer groove that opens towards one side of the heat transfer column. The cross-sections of the heat transfer groove and the heat transfer column are both regular polygons, and the heat transfer column contains a heating rod.

[0013] As a preferred embodiment of the present invention, the self-power-off component includes an electrical conductor installed at the tail of the housing, and two conductive gates electrically connected to the electrical conductor are respectively installed inside the housing. Each of the two pressure handles has a gate slot that cooperates with the conductive gate. The heating rod is electrically connected to the two gate slots respectively through a flexible wire.

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

[0015] In this invention, when both handles are not pressed, the soldering rod retracts into the protective tube under the action of the return spring, providing anti-scalding protection for the user or other personnel. When both handles are pressed or the housing is held, the soldering rod extends from the inside of the protective tube under the action of the connecting rod and performs soldering operations. When both handles are pressed synchronously, the soldering rod is energized and heats up. When either handle is not pressed, the soldering rod is de-energized. Through the above-mentioned self-power-off structure, the self-power-off protection of the soldering rod in the non-use state is realized, and the danger to personnel caused by the dry burning of the heating rod and the soldering rod is avoided. When the telescopic table moves in telescopic motion, the soldering rod and the wire brush ring rotate in opposite directions on the same axis, thereby realizing the self-removal of residual solder on the surface of the soldering rod. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an electric soldering iron with a telescopic structure according to the present invention;

[0017] Figure 2 This utility model Figure 1 A schematic diagram of the cross-sectional structure;

[0018] Figure 3 This utility model Figure 2 A magnified schematic diagram of the partial structure at point A in the middle;

[0019] Figure 4 This utility model Figure 2 A magnified schematic diagram of the local structure at point B;

[0020] Figure 5 This is a cross-sectional structural diagram of the spiral protective tube and wire brush ring of this utility model;

[0021] Figure 6 This is a schematic diagram of the pressure handle and toothed plate of this utility model.

[0022] In the diagram: 1. Shell; 2. Protective tube; 3. Ignition rod; 4. Wire brush ring; 5. Telescopic platform; 6. Return spring; 7. Pressure handle; 8. Connecting rod; 9. Heat transfer column; 10. Ventilation mesh; 11. Heat dissipation hole group; 12. Gear shaft; 13. Gear plate; 14. Driven gear; 15. Synchronous shaft; 16. Linkage gear; 17. Driven ring; 18. Conductive gate; 19. Gate slot; 20. Fan plate; 21. Electrical conductor. 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] like Figures 1 to 6 As shown, this utility model provides an electric soldering iron with a telescopic structure, including a housing 1, a protective tube 2 rotatably mounted on the end of the housing 1, and a ventilation and heat dissipation component on the protective tube 2.

[0025] The ventilation and heat dissipation assembly includes a ventilation mesh 10 disposed on the housing 1, a plurality of heat dissipation hole groups 11 arranged in a circular array on the spiral tube 2 and corresponding to the inner side of the ventilation mesh 10, and a set of fan plates 20 arranged in a circular array on the spiral tube 2. The set of fan plates 20 and the plurality of heat dissipation hole groups 11 are arranged in pairs on the spiral tube 2.

[0026] When the protective tube 2 rotates, the fan plate 20 on the protective tube 2 effectively improves the heat dissipation efficiency of the heat dissipation hole group 11 to the soldering rod 3.

[0027] A cauterizing rod 3 is provided on the inner side of the swivel tube 2. A wire brush ring 4 that fits against the cauterizing rod 3 is installed on the inner wall of the swivel tube 2. A telescopic platform 5 is slidably installed inside the housing 1. A return spring 6 is installed between the telescopic platform 5 and the swivel tube 2. A driven ring 17 is rotatably installed on the telescopic platform 5. The driven ring 17 is fixedly connected to the return spring 6.

[0028] The tinting rod 3 is rotatably mounted on the telescopic table 5. Two pressure handles 7 are slidably connected to the inner wall of the housing 1. A connecting rod 8 is hinged between each of the two pressure handles 7 and the telescopic table 5.

[0029] When the two handles 7 are not pressed, the soldering rod 3 retracts into the inside of the protective tube 2 under the action of the return spring 6, and provides anti-scalding protection for the user or other personnel. When the two handles 7 are pressed or the housing 1 is held, the soldering rod 3 extends out from the inside of the protective tube 2 under the action of the connecting rod 8 and performs soldering operation.

[0030] The housing 1 is equipped with a self-power-off component that is linked to the pressure handle 7;

[0031] A heat transfer column 9 is rotatably mounted on the inner wall of the shell 1, and the heat transfer column 9 is slidably linked with the soldering rod 3.

[0032] The inside of the soldering rod 3 is fixedly provided with a heat transfer groove that opens towards the heat transfer column 9. The cross-sections of the heat transfer groove and the heat transfer column 9 are both regular polygons, and the heat transfer column 9 contains a heating rod.

[0033] The self-disconnecting component includes an electrical wire 21 installed at the tail of the housing 1. Inside the housing 1, there are two conductive pins 18 that are electrically connected to the electrical wire 21. Inside the two pressure handles 7, there is a gate slot 19 that mates with the conductive pin 18. The heating rod is electrically connected to the two gate slots 19 through a flexible wire.

[0034] The two conductive gate posts 18 and the two gate slots 19 correspond to the positive and negative terminals, respectively.

[0035] When the two pressure handles 7 are in the synchronous pressing state, the soldering rod 3 is energized and heated. When either of the two pressure handles 7 is in the non-pressing state, the soldering rod 3 is de-energized. Through the above-mentioned self-power-off structure, the self-power-off protection of the soldering rod 3 in the non-use state is realized and the danger to personnel caused by the dry burning of the heating rod and the soldering rod 3 is avoided.

[0036] The housing 1 is equipped with a transmission module that is driven by the movement of the telescopic platform 5. The tinning rod 3 and the rotating protective tube 2 are driven by the transmission module and rotate in opposite directions on the same axis.

[0037] The transmission module includes a gear shaft 12 rotatably connected to the inner wall of the housing 1 and a gear plate 13 fixedly installed on the telescopic platform 5. A driven gear 14 is installed on the gear shaft 12, and the driven gear 14 is connected to the gear plate 13. A bevel gear is installed on both the gear shaft 12 and the heat transfer column 9, and the two bevel gears mesh with each other. A synchronous shaft 15 is rotatably installed on the inner wall of the housing 1, and the synchronous shaft 15 is connected to the heat transfer column 9 via a belt. A linkage gear 16 is installed on both the synchronous shaft 15 and the rotating protective tube 2, and the two linkage gears 16 mesh with each other.

[0038] When the telescopic table 5 extends and retracts, the soldering rod 3 and the wire brush ring 4 rotate in opposite directions on the same axis, thereby achieving self-removal of residual solder on the surface of the soldering rod 3.

[0039] Working principle and usage process of this utility model:

[0040] When both handles 7 are not pressed, the soldering rod 3 retracts into the inner side of the protective tube 2 under the action of the return spring 6, providing anti-scalding protection for the user or other personnel. When both handles 7 are pressed or the housing 1 is held, the soldering rod 3 extends from the inner side of the protective tube 2 under the action of the connecting rod 8 and performs soldering operations. When both handles 7 are pressed synchronously, the soldering rod 3 is energized and heats up. When either of the two handles 7 is not pressed, the soldering rod 3 is de-energized. Through the above-mentioned self-power-off structure, the self-power-off protection of the soldering rod 3 in the non-use state is realized, and the danger to personnel caused by the dry burning of the heating rod and the soldering rod 3 is avoided. When the telescopic table 5 moves in telescopic motion, the soldering rod 3 and the wire brush ring 4 rotate in opposite directions on the same axis, thereby realizing the self-removal of residual solder on the surface of the soldering rod 3.

[0041] 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.

[0042] 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 electric soldering iron with telescopic structure comprising a housing (1), characterized in that: The end of the shell (1) is rotatably installed with a rotating protection pipe (2), the rotating protection pipe (2) is provided with a ventilation and heat dissipation assembly, the inner side of the rotating protection pipe (2) is provided with a branding rod (3), the inner wall of the rotating protection pipe (2) is installed with a steel wire brush ring (4) abutting the branding rod (3), the inside of the shell (1) is slidably installed with an extension table (5), a reset spring (6) is installed between the extension table (5) and the rotating protection pipe (2), the branding rod (3) is rotatably installed on the extension table (5), the inner wall of the shell (1) is slidably connected with two pressing handles (7), a connecting rod (8) is hingedly connected between the two pressing handles (7) and the extension table (5), the inside of the shell (1) is provided with a self power-off assembly linked with the pressing handles (7), the inner wall of the shell (1) is rotatably installed with a heat transfer column (9), the heat transfer column (9) is slidably linked with the branding rod (3), the shell (1) is installed with a transmission module driven by the movement of the extension table (5), the branding rod (3) and the rotating protection pipe (2) are driven by the transmission module and coaxially and reversely rotated.

2. The electric soldering iron with telescopic structure according to claim 1, characterized in that: The ventilation and heat dissipation assembly comprises a ventilation mesh surface (10) arranged on the shell (1), a plurality of heat dissipation hole groups (11) are arranged in a circumferential array on the rotating protection pipe (2) and correspond to the inner side of the ventilation mesh surface (10), a group of fan plates (20) are arranged in a circumferential array on the rotating protection pipe (2), and one group of the fan plates (20) and the plurality of heat dissipation hole groups (11) are arranged in pairs on the rotating protection pipe (2).

3. The electric soldering iron with telescopic structure according to claim 1, characterized in that: The transmission module comprises a gear shaft (12) rotatably connected to the inner wall of the shell (1) and a gear plate (13) fixedly installed on the extension table (5), a driven gear (14) is installed on the gear shaft (12), the driven gear (14) is in transmission connection with the gear plate (13), a bevel gear is installed on the gear shaft (12) and the heat transfer column (9), the two bevel gears are in meshing with each other, a synchronous shaft (15) is rotatably installed on the inner wall of the shell (1), the synchronous shaft (15) is in transmission connection with the heat transfer column (9) through a belt, a linkage gear (16) is installed on the synchronous shaft (15) and the rotating protection pipe (2), and the two linkage gears (16) are in meshing with each other.

4. The electric soldering iron with telescopic structure according to claim 1, characterized in that: A driven ring (17) is rotatably installed on the extension table (5), and the driven ring (17) is fixedly connected with the reset spring (6).

5. The electric soldering iron with telescopic structure according to claim 1, characterized in that: A heat transfer groove is fixedly arranged in the inside of the branding rod (3) and opens towards one side of the heat transfer column (9), the heat transfer groove and the heat transfer column (9) are both regular polygons in cross section, and an electric heating rod is arranged in the heat transfer column (9).

6. The electric soldering iron with telescopic structure according to claim 5, characterized in that: The self power-off assembly comprises an electric lead (21) installed at the tail of the shell (1), two electrically conductive gate columns (18) are respectively installed in the inside of the shell (1) and electrically connected with the electric lead (21), a gate groove (19) matched with the electrically conductive gate column (18) is arranged in the inside of each of the two pressing handles (7), and the electric heating rod is electrically connected with the two gate grooves (19) through a soft lead wire.

Images