A replaceable tip soldering gun
By designing a desoldering gun with replaceable nozzles, and using a heating cylinder and suction device to control temperature and suction force, the problem of low efficiency of existing desoldering pumps is solved, achieving efficient removal of solder and convenient control, thereby improving maintenance quality and equipment reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA TOBACCO HENAN IND CO LTD
- Filing Date
- 2025-06-04
- Publication Date
- 2026-06-05
AI Technical Summary
Existing desoldering pumps are inconvenient and inefficient in terms of temperature and suction control, making it difficult to effectively remove solder from multi-layer circuit boards or precision components, which affects repair quality and equipment operation.
Design a desoldering gun with replaceable nozzles, employing a heating cylinder and a suction device. The gun head is connected to the heating cylinder via a detachable nozzle. The heating cylinder heats the solder, and the suction device generates negative pressure to draw in the solder. A power supply and controller are integrated to control the temperature and suction force.
It improves the efficiency and convenience of solder absorption, increases the automation level of the desoldering gun, ensures that solder is effectively removed at the appropriate temperature, and avoids problems such as disassembly difficulties and short circuits caused by solder residue.
Smart Images

Figure CN224322484U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of desoldering guns, and more specifically, to a desoldering gun with a replaceable gun head. Background Technology
[0002] In electronic equipment repair, solder is a crucial material for welding components and circuit boards. Solder removal becomes essential when components need to be replaced or resoldered. Traditional solder removal methods, including the use of desoldering wicks, manual desoldering pumps, or hot air soldering equipment, have gradually revealed numerous shortcomings when facing such complex repair needs. For example, ordinary desoldering pumps typically rely on manual squeezing to generate suction, which has limited and unstable suction power, making it difficult to thoroughly remove solder from small solder joints. When handling multi-layer circuit boards or precision components, residual solder can lead to difficulties in component disassembly and even cause short circuits or cold solder joints during resoldering, affecting repair quality and the normal operation of equipment. Furthermore, solder joints require a suitable temperature to be successfully removed; excessively high temperatures can damage components or circuit boards, while excessively low temperatures prevent the solder from melting sufficiently. Existing desoldering pumps have relatively simple nozzles that cannot adapt to solder joints of different shapes, sizes, and layouts, and lack nozzle temperature control, leading to incomplete solder removal at low temperatures and reducing efficiency and effectiveness. Therefore, improving the desoldering efficiency of desoldering guns is of great significance. Utility Model Content
[0003] This invention provides a desoldering gun with a replaceable head, which solves the problems of inconvenient temperature and suction control and low efficiency of existing desoldering pumps. It can improve the efficiency and convenience of solder absorption control and increase the automation level of the desoldering gun.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] A desoldering gun with a replaceable gun head includes: a gun body, a gun head, a suction device, a heating cylinder, and a collection box;
[0006] The gun head is detachably mounted on the barrel end of the gun body, and the gun head has a pointed hollow structure;
[0007] The heating cylinder is disposed in the inner cavity of the gun barrel, and one end of the heating cylinder is connected to the gun head. When the heating cylinder heats up, the gun head is heated up to heat the solder.
[0008] The suction device is disposed in the inner cavity of the gun body. The suction pipe of the suction device is connected to the inner cavity of the gun head, and the exhaust pipe of the suction device is connected to the collection box. When the suction device is in operation, a negative pressure is generated in the suction pipe so as to draw the solder into the collection box through the gun head.
[0009] Preferably, it also includes: a power supply;
[0010] The power supply is electrically connected to the heating cylinder and the air intake device respectively to provide power.
[0011] Preferably, the heating cylinder includes: a first heating ring, a cylinder body, and a second heating ring;
[0012] The first heating ring and the second heating ring are respectively provided at both ends of the cylinder;
[0013] Both the first heating ring and the second heating ring are electrically connected to the power supply. When one end of the heating cylinder is connected to the gun head, the second heating ring is connected to the gun head.
[0014] When the first heating ring and / or the second heating ring are energized and heated, the gun head heats up to heat the solder to be absorbed.
[0015] Preferably, the air intake device includes: an air pump;
[0016] The air pump is electrically connected to the power supply, the air inlet of the air pump is connected to the suction pipe, and the air outlet of the air pump is connected to the exhaust pipe.
[0017] Preferably, it also includes: a controller;
[0018] The controller is mounted on the gun body and is connected to the air pump, the first heating ring, and the second heating ring via signals to control the operation of the air pump and the heating of the first and second heating rings.
[0019] Preferably, the controller is equipped with a display screen and control buttons. The display screen is used to display the air pump speed and heating temperature, and the control buttons are used to control the driving of the air pump and the heating operation of the first heating ring and the second heating ring.
[0020] Preferably, the barrel end is provided with a threaded opening, a connecting nut is connected to the outer side of the threaded opening, and an adapter is connected to the inner side of the threaded opening. The adapter is connected to the suction pipe.
[0021] The connecting nut has a central threaded through hole. The end of the gun head away from the tip is threadedly connected to the connecting nut through the central threaded through hole and inserted into the adapter to connect to the suction pipe.
[0022] Preferably, the collection box has a slide rail inside, and a collection drawer is slidably connected to the slide rail. The end face of the collection drawer is provided with a handle.
[0023] Preferably, the collection drawer is provided with a locking mechanism for locking the collection drawer to the inner wall of the collection box.
[0024] Preferably, the top of the gun body is provided with a heat dissipation mesh, which is made of a high-temperature resistant material.
[0025] This utility model provides a desoldering gun with a replaceable gun head. A heating cylinder is installed inside the gun barrel and connected to the gun head to control the temperature rise of the gun head. At the same time, an air suction device is installed inside the gun body to connect the inner cavity of the gun head to the collection box through the air suction pipe and the exhaust pipe. This solves the problems of inconvenient temperature and suction control and low efficiency of existing desoldering pumps, and can improve the efficiency and convenience of solder absorption control, and increase the automation level of the desoldering gun. Attached Figure Description
[0026] To more clearly illustrate the specific embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly described below.
[0027] Figure 1 This is a schematic diagram of a desoldering gun with a replaceable gun head provided by this utility model.
[0028] Figure 2 This is a schematic diagram of the connection between the gun head and the gun barrel provided in an embodiment of this utility model.
[0029] Figure 3 This is a connection diagram of the heating cylinder provided in an embodiment of the present invention.
[0030] Figure 4 This is a connection diagram of the air intake device provided in an embodiment of the present invention. Detailed Implementation
[0031] To enable those skilled in the art to better understand the embodiments of this utility model, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and implementation methods.
[0032] To address the problems of inconvenient temperature and suction control and low efficiency in current desoldering pumps, this invention provides a desoldering gun with a replaceable head, which solves the problems of inconvenient temperature and suction control and low efficiency in existing desoldering pumps, improves the efficiency and convenience of solder absorption control, and increases the automation level of the desoldering gun.
[0033] like Figures 1-4As shown, a desoldering gun with a replaceable head includes: a gun body 1, a head 202, a suction device, a heating cylinder, and a collection box 8. The head 202 is detachably mounted at the end of the gun barrel 16 of the gun body 1, and is a pointed, hollow structure. The heating cylinder is disposed within the inner cavity of the gun barrel 16, with one end connected to the head 202. Heating the head when the heating cylinder heats it up heats the solder. The suction device is disposed within the inner cavity of the gun body, with its suction pipe connected to the inner cavity of the head and its exhaust pipe connected to the collection box 8. When the suction device operates, a negative pressure is generated within the suction pipe, drawing the solder through the head into the collection box.
[0034] Specifically, firstly, a connecting nut 201 is threaded through the left side of the barrel 16, and a gun head 202 is fixedly connected to the left side of the connecting nut 201. By replacing the connecting nut 201, a matching gun head 202 of suitable size and layout can be used to suction solder joints as needed. A negative pressure is generated in the suction pipe by the suction device, thereby sucking up the solder joints corresponding to the gun head. Heat conduction through the heating cylinder heats the gun head, keeping the solder in a molten state to prevent it from becoming too hot or too cold. This desoldering gun improves the efficiency and convenience of solder absorption control, increasing the level of automation.
[0035] The desoldering gun also includes a power supply; the power supply is electrically connected to the heating cylinder and the suction device respectively to provide power.
[0036] like Figure 3 As shown, the power supply uses a 305 storage battery.
[0037] Furthermore, the heating cylinder includes: a first heating ring 301, a cylinder body 302, and a second heating ring 303; the first heating ring 301 and the second heating ring 303 are respectively provided at both ends of the cylinder body 302; the first heating ring 301 and the second heating ring 303 are both electrically connected to the power supply; when one end of the heating cylinder is connected to the gun head 202, the second heating ring 303 is connected to the gun head 202; when the first heating ring 301 and / or the second heating ring 303 are energized and heated, the gun head heats up to heat the solder to be absorbed.
[0038] In practical applications, the back of the first heating ring 301 is fixedly connected to one end of the cylinder 302, and the other end of the cylinder 302 is fixedly connected to the back of the second heating ring 303. The second heating ring 303 and the first heating ring 301 are electrically connected to a battery 305 via a power line. The first heating ring 301, the cylinder 302, the second heating ring 303, the controller 304 and the battery can be integrated together as a heating mechanism 3.
[0039] Furthermore, the air intake device includes an air pump 6; the air pump 6 is electrically connected to the power supply, the air inlet of the air pump 6 is connected to the air intake pipe 5, and the air outlet of the air pump 6 is connected to the exhaust pipe 7.
[0040] The desoldering gun also includes a controller 304; the controller 304 is disposed on the gun body 1, and the controller 304 is connected to the air pump, the first heating ring 301 and the second heating ring 303 respectively for controlling the operation of the air pump and the heating of the first heating ring and the second heating ring.
[0041] Furthermore, the controller is equipped with a display screen and control buttons. The display screen is used to display the air pump speed and heating temperature, and the control buttons are used to control the drive of the air pump and the heating operation of the first heating ring and the second heating ring.
[0042] In practical applications, the power is plugged in, the controller 304 is turned on, and the appropriate temperature is set. The first heating ring 301 and the second heating ring 303 are electrically connected to the battery 305 to conduct heat. The second heating ring 303 is fixedly connected to the cylinder 302. When the second heating ring is heating, the temperature can be conducted to the first heating ring 301 through the cylinder 302. The first heating ring 301 then conducts heat to the connecting nut 201, and the connecting nut 201 then conducts heat to the gun head 202 fixedly connected to its surface.
[0043] Furthermore, the barrel end is provided with a threaded opening, and a connecting nut 201 is connected to the outer side of the threaded opening. The inner side of the threaded opening is connected to an adapter 4, and the adapter 4 is connected to the suction pipe 5. The connecting nut 201 is provided with a central threaded through hole. The end of the gun head away from the tip is threadedly connected to the connecting nut through the central threaded through hole and inserted into the adapter 4 to communicate with the suction pipe 5.
[0044] In practical applications, a barrel 16 is fixedly connected to the left side of the gun body 1. A threaded opening is located on the left side of the barrel 16, and a connecting nut 201 is threaded inside the opening. A cavity is formed inside the barrel 16, and a heating cylinder is fixedly connected inside the cavity. A gun head 202 is fixedly connected inside the connecting nut 201, forming a detachable mechanism 2 that integrates the gun head 202 and the connecting nut 201. An adapter 4 is threadedly connected to the left side of the cavity, and an air suction pipe 5 is sleeved at the end of the adapter 4, serving as a connection. The end of the air suction pipe 5 is connected to an air pump 6, and the top of the air pump 6 is connected to an exhaust pipe 7. The exhaust pipe 7 draws solder into a collection box 8. The end of the exhaust pipe 7 is fixedly connected to the collection box 8 to collect waste solder.
[0045] Furthermore, the collection box 8 has a slide rail inside, and a collection drawer 9 is slidably connected to the slide rail. The end face of the collection drawer 9 is provided with a handle 10.
[0046] Furthermore, the collection drawer 9 is provided with a locking mechanism for locking the collection drawer to the inner wall of the collection box.
[0047] In practical applications, such as Figure 1 and Figure 4 As shown, the locking mechanism includes: a fixing plate 11, a bolt 12, a locking tongue 13, and a locking pin 14; the fixing plate 11 is fixedly connected to the front of the collection box 8, and the bolt 12 is rotatably connected to the left side of the fixing plate 11. A lock hole is provided in the middle of the bolt 12, the locking tongue 13 passes through the lock hole, and a slot is provided in the middle of the locking tongue 13, through which the locking pin 14 passes.
[0048] Furthermore, the top of the gun body is provided with a heat dissipation mesh 15, which is made of high-temperature resistant material.
[0049] This utility model provides a desoldering gun with a replaceable gun head. A heating cylinder is installed inside the gun barrel and connected to the gun head to control the temperature rise of the gun head. At the same time, an air suction device is installed inside the gun body to connect the inner cavity of the gun head to the collection box through the air suction pipe and the exhaust pipe. This solves the problems of inconvenient temperature and suction control and low efficiency of existing desoldering pumps, and can improve the efficiency and convenience of solder absorption control, and increase the automation level of the desoldering gun.
[0050] The structure, features and effects of this utility model have been described in detail above with reference to the embodiments shown in the figures. The above description is only a preferred embodiment of this utility model, but the scope of implementation of this utility model is not limited to what is shown in the figures. Any changes made in accordance with the concept of this utility model, or modifications to equivalent embodiments, that do not exceed the spirit covered by the specification and figures, shall be within the protection scope of this utility model.
Claims
1. A desoldering gun with a replaceable gun head, characterized in that, include: Gun body, gun head, suction device, heating cylinder, and collection box; The gun head is detachably mounted on the barrel end of the gun body, and the gun head has a pointed hollow structure; The heating cylinder is disposed in the inner cavity of the gun barrel, and one end of the heating cylinder is connected to the gun head. When the heating cylinder heats up, the gun head is heated up to heat the solder. The suction device is disposed in the inner cavity of the gun body. The suction pipe of the suction device is connected to the inner cavity of the gun head, and the exhaust pipe of the suction device is connected to the collection box. When the suction device is in operation, a negative pressure is generated in the suction pipe so as to draw the solder into the collection box through the gun head.
2. The desoldering gun with replaceable head according to claim 1, characterized in that, Also includes: Power supply; The power supply is electrically connected to the heating cylinder and the air intake device respectively to provide power.
3. The desoldering gun with replaceable head according to claim 2, characterized in that, The heating cylinder includes: a first heating ring, a cylinder body, and a second heating ring; The first heating ring and the second heating ring are respectively provided at both ends of the cylinder; Both the first heating ring and the second heating ring are electrically connected to the power supply. When one end of the heating cylinder is connected to the gun head, the second heating ring is connected to the gun head. When the first heating ring and / or the second heating ring are energized and heated, the gun head heats up to heat the solder to be absorbed.
4. The desoldering gun with replaceable head according to claim 3, characterized in that, The air intake device includes: an air pump; The air pump is electrically connected to the power supply, the air inlet of the air pump is connected to the suction pipe, and the air outlet of the air pump is connected to the exhaust pipe.
5. The desoldering gun with replaceable head according to claim 4, characterized in that, Also includes: Controller; The controller is mounted on the gun body and is connected to the air pump, the first heating ring, and the second heating ring via signals to control the operation of the air pump and the heating of the first and second heating rings.
6. The desoldering gun with replaceable head according to claim 5, characterized in that, The controller is equipped with a display screen and control buttons. The display screen is used to display the air pump speed and heating temperature, and the control buttons are used to control the drive of the air pump and the heating operation of the first heating ring and the second heating ring.
7. The desoldering gun with replaceable head according to claim 6, characterized in that, The barrel end is provided with a threaded opening, a connecting nut is connected to the outside of the threaded opening, and an adapter is connected to the inside of the threaded opening. The adapter is connected to the suction pipe. The connecting nut has a central threaded through hole. The end of the gun head away from the tip is threadedly connected to the connecting nut through the central threaded through hole and inserted into the adapter to connect to the suction pipe.
8. The desoldering gun with replaceable head according to claim 7, characterized in that, The collection box has a slide rail inside, and a collection drawer is slidably connected to the slide rail. The end face of the collection drawer is provided with a handle.
9. The desoldering gun with replaceable head according to claim 8, characterized in that, The collection drawer is equipped with a locking mechanism for locking the collection drawer to the inner wall of the collection box.
10. The desoldering gun with a replaceable head according to any one of claims 1 to 9, characterized in that, The top of the gun body is equipped with a heat dissipation mesh, which is made of high-temperature resistant material.