Hot air gun with temperature alarm function

Abstract

The utility model provides a heat gun with a temperature alarm function. The hot air gun with the temperature alarm function comprises a shell; the wind scooper is arranged on the inner wall of the shell; the electric heating wire is arranged on the inner wall of the wind scooper; the air inlet is formed in one side of the shell; the fan is arranged on one side of the shell, and the installation position of the fan corresponds to the air inlet; the fixed air guide pipe is fixedly mounted on one side of the shell, and the fixed air guide pipe is communicated with the air guide cover; and the movable air guide pipe is arranged on the fixed air guide pipe in a sliding and sleeving manner. The hot air gun with the temperature alarm function has the advantages that the extension length of the hot air guide pipe can be adjusted, operation is convenient, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of hot air guns, in particular to a hot air gun with a temperature alarm function. Background Art

[0002] The hot air gun is mainly a tool that uses the hot air blown out of the gun core of the heating resistor wire to weld and remove components. According to the working principle of the hot air gun, the main part of the hot air gun control circuit should include the temperature signal amplification circuit, the comparison circuit, the thyristor control circuit, the sensor, the wind control circuit, etc. In addition, in order to improve the overall performance of the circuit, some auxiliary circuits should be set, such as the temperature display circuit, the shutdown delay circuit and the zero-crossing detection circuit. The temperature display circuit is set to facilitate temperature adjustment. The temperature displayed by the temperature display circuit is the actual temperature of the circuit. Workers can manually adjust it according to the temperature displayed on the display during operation.

[0003] However, the existing hot air guns are often unable to adjust the extension length of the hot air duct, so it is not convenient to extend the hot air duct to a relatively narrow area for heating.

[0004] Therefore, it is necessary to provide a heat gun with a temperature alarm function to solve the above technical problems. Utility Model Content

[0005] In order to solve the technical problem that the existing hot air gun with a temperature alarm function is often unable to adjust the extension length of the hot air duct, the utility model provides a hot air gun with a temperature alarm function.

[0006] The utility model provides a hot air gun with a temperature alarm function, comprising: a shell; an air duct, which is arranged on the inner wall of the shell; a heating wire, which is arranged on the inner wall of the air duct; an air inlet, which is opened on one side of the shell; a fan, which is arranged on one side of the shell, and the installation position of the fan corresponds to the air inlet; a fixed air duct, which is fixedly installed on one side of the shell, and the fixed air duct is connected to the air duct; a movable air duct, which is slidably sleeved on the fixed air duct; an extension length adjustment mechanism, which is arranged on the inner wall of the shell, and the extension length adjustment mechanism is used to adjust the extension length of the movable air duct.

[0007] Preferably, the extension length adjustment mechanism includes a plurality of screws, a sliding plate, a vent and a plurality of connecting rods, the plurality of screws are rotatably mounted on the inner wall of the outer shell, one of the screws extends to the outside of the outer shell, the plurality of screws are rotatably connected to the air guide cover, the sliding plate is threadedly sleeved on the screws, the vent is opened on the sliding plate, the plurality of connecting rods are fixedly mounted on one side of the sliding plate, the plurality of connecting rods are slidably connected to the air guide cover and the outer shell, and the plurality of connecting rods are fixedly connected to the movable air guide duct.

[0008] Preferably, a plurality of the screw rods are fixedly sleeved with a synchronous wheel, and a same synchronous belt is sleeved on the plurality of the synchronous wheels.

[0009] Preferably, a servo motor is fixedly mounted on one side of the housing, and an output shaft of the servo motor is fixedly connected to one of the screw rods.

[0010] Preferably, a controller is provided on the housing, and the controller is electrically connected to the heating wire, the fan and the servo motor.

[0011] Preferably, an alarm light is provided on the top of the shell, and a temperature sensor is provided on the inner wall of the fixed air duct, and both the alarm light and the temperature sensor are electrically connected to the controller.

[0012] Preferably, a handle is fixedly mounted on the housing, a push switch is provided on the handle, and the push switch is electrically connected to the controller.

[0013] Compared with the related art, the hot air gun with temperature alarm function provided by the utility model has the following beneficial effects:

[0014] The utility model provides a hot air gun with a temperature alarm function. Firstly, the shell serves as the main structure of the hot air gun and provides stable support and protection for internal components. The air guide cover is arranged on the inner wall of the shell. Its main function is to guide and concentrate hot air, thereby improving the utilization rate and working efficiency of hot air. The electric heating wire is installed on the inner wall of the air guide cover and generates heat after being powered on. Through the guidance of the air guide cover, continuous and stable hot air is formed. Secondly, the combination of the air inlet and the fan is an important part of the hot air gun. The air inlet is opened on one side of the shell to allow external air to enter the inside of the hot air gun. The fan is arranged at the corresponding position of the air inlet. Airflow is generated by rotation to suck external air into the inside of the hot air gun, thereby providing sufficient cooling air for the electric heating wire and also helping to form a strong The hot air of the hot air gun can be adjusted according to the actual needs, so as to adapt to different working environments and usage requirements. Finally, the extension length adjustment mechanism is an innovative design of the hot air gun, which is arranged on the inner wall of the shell and is used to adjust the extension length of the movable air duct. By operating the extension length adjustment mechanism, the user can easily adjust the length of the movable air duct to adapt to different working scenes. This design not only improves the convenience of using the hot air gun, but also enhances its applicability.

[0015] To sum up, the hot air gun with temperature alarm function in this embodiment achieves efficient, convenient and safe working performance through its unique design and component configuration. It is a very practical tool for both professional maintenance personnel and ordinary users, which can greatly improve work efficiency and work quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A structural schematic diagram of a preferred embodiment of a hot air gun with a temperature alarm function provided by the utility model;

[0017] Figure 2 for Figure 1 Schematic diagram of the three-dimensional assembly structure of the sliding plate and the connecting rod;

[0018] Figure 3 for Figure 1 An enlarged schematic diagram of part A is shown in FIG.

[0019] Numbers in the figure: 1. outer casing; 2. air guide cover; 3. heating wire; 4. air inlet; 5. fan; 6. fixed air duct; 7. movable air duct; 8. screw; 9. sliding plate; 10. vent; 11. connecting rod; 12. synchronous wheel; 13. servo motor; 14. controller; 15. warning light; 16. temperature sensor; 17. handle; 18. push switch. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0021] Please refer to Figure 1-3 ,in, Figure 1 A structural schematic diagram of a preferred embodiment of a hot air gun with a temperature alarm function provided by the utility model; Figure 2 for Figure 1 Schematic diagram of the three-dimensional assembly structure of the sliding plate and the connecting rod; Figure 3 for Figure 1The heat gun with temperature alarm function includes: a housing 1; an air duct 2, the air duct 2 is arranged on the inner wall of the housing 1; a heating wire 3, the heating wire 3 is arranged on the inner wall of the air duct 2; an air inlet 4, the air inlet 4 is opened on one side of the housing 1; a fan 5, the fan 5 is arranged on one side of the housing 1, and the installation position of the fan 5 corresponds to the air inlet 4; a fixed air duct 6, the fixed air duct 6 is fixedly installed on one side of the housing 1, and the fixed air duct 6 is connected to the air duct 2; a movable air duct 7 The movable air duct 7 is slidably mounted on the fixed air duct 6; an extension length adjustment mechanism is arranged on the inner wall of the shell 1, and the extension length adjustment mechanism is used to adjust the extension length of the movable air duct 7. First, the shell serves as the main structure of the hot air gun, providing a stable support and protection for the internal components. The air guide cover is arranged on the inner wall of the shell. Its main function is to guide and concentrate the hot air, improve the utilization rate and work efficiency of the hot air, and the electric heating wire is installed on the inner wall of the air guide cover. When powered on, it generates heat. The hood guides the formation of continuous and stable hot air. Secondly, the combination of the air inlet and the fan is an important part of the hot air gun. The air inlet is opened on one side of the shell to allow external air to enter the inside of the hot air gun. The fan is set at the corresponding position of the air inlet. The air flow is generated by rotation to suck the external air into the inside of the hot air gun, providing sufficient cooling air for the heating wire, and also helping to form strong hot air. Furthermore, the coordinated use of the fixed air duct and the movable air duct makes the use of the hot air gun more flexible and convenient. The fixed air duct is fixedly installed on one side of the shell and is connected to the air duct cover to ensure that the hot air can be smoothly discharged. The movable air duct is slidably mounted on the fixed air duct, and its extension length can be adjusted according to actual needs to adapt to different working environments and usage requirements. Finally, the extension length adjustment mechanism is an innovative design of the hot air gun. It is set on the inner wall of the shell to adjust the extension length of the movable air duct. By operating the extension length adjustment mechanism, the user can easily adjust the length of the movable air duct to adapt to different working scenes. This design not only improves the convenience of using the hot air gun, but also enhances its applicability.

[0022] The extension length adjustment mechanism includes multiple screws 8, sliding plates 9, vents 10 and multiple connecting rods 11. Multiple screws 8 are rotatably installed on the inner wall of the outer shell 1, one of the screws 8 extends to the outside of the outer shell 1, multiple screws 8 are rotatably connected to the air duct 2, the sliding plate 9 is threadedly sleeved on the screws 8, the vents 10 are opened on the sliding plate 9, multiple connecting rods 11 are fixedly installed on one side of the sliding plate 9, multiple connecting rods 11 are slidably connected to the air duct 2 and the outer shell 1, and multiple connecting rods 11 are fixedly connected to the movable air duct 7. The sliding plate 9 is driven to move to one side by synchronous rotation of multiple screws 8, and the sliding plate 9 drives the movable air duct 7 to move laterally through multiple connecting rods 11, thereby adjusting the extension length of the movable air duct 7.

[0023] The plurality of screw rods 8 are all fixedly sleeved with synchronous wheels 12, and the plurality of synchronous wheels 12 are sleeved with the same synchronous belt, so that the plurality of screw rods 8 can be rotated synchronously through the plurality of synchronous wheels 12 and the synchronous belt.

[0024] A servo motor 13 is fixedly mounted on one side of the housing 1 , and an output shaft of the servo motor 13 is fixedly connected to one of the screw rods 8 . The servo motor 13 can drive one of the screw rods 8 to rotate.

[0025] The housing 1 is provided with a controller 14 , which is electrically connected to the heating wire 3 , the fan 5 and the servo motor 13 . The device can be operated and controlled by the controller 14 .

[0026] An alarm light 15 is provided on the top of the shell 1, and a temperature sensor 16 is provided on the inner wall of the fixed air duct 6. The alarm light 15 and the temperature sensor 16 are both electrically connected to the controller 14. The temperature of the hot air passing through the fixed air duct 6 is monitored by the temperature sensor 16. When the hot air temperature is too high, the controller 14 controls the alarm light 15 to start, and the alarm light 15 flashes to alert the staff.

[0027] A handle 17 is fixedly mounted on the housing 1 , and a push switch 18 is provided on the handle 17 . The push switch 18 is electrically connected to the controller 14 . The handle 17 can facilitate the staff to hold the device, and the start and stop of the heating wire 3 and the fan 5 can be controlled by pressing the switch 18 .

[0028] The working principle of the hot air gun with temperature alarm function provided by the utility model is as follows:

[0029] When in use, the extension length of the movable air duct 7 is adjusted as needed, and the servo motor 13 is started. The servo motor 13 drives a screw 8 to rotate, and multiple screws 8 can be made to rotate synchronously through multiple synchronous wheels 12 and synchronous belts. The synchronous rotation of multiple screws 8 drives the sliding plate 9 to move to one side, and the sliding plate 9 drives the movable air duct 7 to move horizontally through multiple connecting rods 11, so as to adjust the extension length of the movable air duct 7, and start the fan 5. The fan 5 blows the air flow into the shell 1 through the air inlet 4, and the air flow enters the air guide cover 2 along the vent 10. The air flow is heated by the electric heating wire 3 to form hot air, and the hot air is blown to the heating point along the fixed air duct 6 and the movable air duct 7. The temperature of the hot air passing through the fixed air duct 6 is monitored by the temperature sensor 16. When the hot air temperature is too high, the controller 14 controls the start of the alarm light 15, and the alarm light 15 flashes to give an alarm prompt to the staff.

[0030] Compared with the related art, the hot air gun with temperature alarm function provided by the utility model has the following beneficial effects:

[0031] The utility model provides a hot air gun with a temperature alarm function. Firstly, the shell serves as the main structure of the hot air gun and provides stable support and protection for internal components. The air guide cover is arranged on the inner wall of the shell. Its main function is to guide and concentrate hot air, thereby improving the utilization rate and working efficiency of hot air. The electric heating wire is installed on the inner wall of the air guide cover and generates heat after being powered on. Through the guidance of the air guide cover, continuous and stable hot air is formed. Secondly, the combination of the air inlet and the fan is an important part of the hot air gun. The air inlet is opened on one side of the shell to allow external air to enter the inside of the hot air gun. The fan is arranged at the corresponding position of the air inlet. Airflow is generated by rotation to suck external air into the inside of the hot air gun, thereby providing sufficient cooling air for the electric heating wire and also helping to form a strong The hot air of the hot air gun can be adjusted according to the actual needs, so as to adapt to different working environments and usage requirements. Finally, the extension length adjustment mechanism is an innovative design of the hot air gun, which is arranged on the inner wall of the shell and is used to adjust the extension length of the movable air duct. By operating the extension length adjustment mechanism, the user can easily adjust the length of the movable air duct to adapt to different working scenes. This design not only improves the convenience of using the hot air gun, but also enhances its applicability.

[0032] To sum up, the hot air gun with temperature alarm function in this embodiment achieves efficient, convenient and safe working performance through its unique design and component configuration. It is a very practical tool for both professional maintenance personnel and ordinary users, which can greatly improve work efficiency and work quality.

[0033] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A hot air gun with a temperature alarm function, characterized in that: include: shell; An air guide cover, the air guide cover is arranged on the inner wall of the shell; A heating wire, wherein the heating wire is arranged on the inner wall of the air guide cover; An air inlet, the air inlet being opened on one side of the housing; A fan, the fan being arranged on one side of the housing, and the installation position of the fan corresponding to the air inlet; A fixed air duct, the fixed air duct being fixedly mounted on one side of the housing and being communicated with the air duct cover; A movable air duct, wherein the movable air duct is slidably sleeved on the fixed air duct; An extension length adjustment mechanism is provided on the inner wall of the shell and is used to adjust the extension length of the movable air duct.

2. The hot air gun with temperature alarm function according to claim 1, characterized in that: The extension length adjustment mechanism includes multiple screws, sliding plates, vents and multiple connecting rods, multiple screws are rotatably installed on the inner wall of the outer shell, one of the screws extends to the outside of the outer shell, multiple screws are rotatably connected to the air guide cover, the sliding plate is threadedly sleeved on the screws, the vents are opened on the sliding plate, multiple connecting rods are fixedly installed on one side of the sliding plate, multiple connecting rods are slidably connected to the air guide cover and the outer shell, and multiple connecting rods are fixedly connected to the movable air guide duct.

3. The hot air gun with temperature alarm function according to claim 2, characterized in that: A plurality of screw rods are all fixedly sleeved with synchronous wheels, and a same synchronous belt is sleeved on the plurality of synchronous wheels.

4. The hot air gun with temperature alarm function according to claim 2, characterized in that: A servo motor is fixedly mounted on one side of the housing, and an output shaft of the servo motor is fixedly connected to one of the screw rods.

5. The hot air gun with temperature alarm function according to claim 3, characterized in that: The housing is provided with a controller, and the controller is electrically connected with the heating wire, the fan and the servo motor.

6. The hot air gun with temperature alarm function according to claim 5, characterized in that: An alarm light is arranged on the top of the shell, and a temperature sensor is arranged on the inner wall of the fixed air duct. Both the alarm light and the temperature sensor are electrically connected to the controller.

7. The hot air gun with temperature alarm function according to claim 5, characterized in that: A handle is fixedly mounted on the housing, a push switch is arranged on the handle, and the push switch is electrically connected to the controller.

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