Hot air gun hot bending nozzle

Abstract

The utility model relates to hot air processing equipment technical field, specifically disclose hot air gun hot bending nozzle, include: air outlet mechanism and assemble in the air outlet mechanism's protection mechanism and assemble in the air outlet mechanism bottom's mounting mechanism, the air outlet mechanism includes annular pipe, the inner wall of annular pipe is set up with a plurality of first air outlet that is annular arrangement distribution, the protection mechanism includes the protection cover of sliding installation in the annular pipe, the inside of protection cover is hollow, the inner wall of protection cover is set up with a plurality of second air outlet that is annular array distribution, the mounting mechanism includes the mounting sleeve of intercommunication in the bottom of annular pipe, the inside of mounting sleeve is set up with installation cavity, the inner wall of installation cavity is fixed with rubber ring, the utility model can realize hot air 360 even blow to the surface of PVC pipe fast and even temperature rise, avoided because of the uneven heating and led to the deformation of the bending, wrinkle or radius inconsistent condition, and it is time -saving and laborsaving to operate.

Description

Technical Field

[0001] This utility model belongs to the technical field of hot air processing equipment, specifically relating to hot air gun hot bending nozzle. Background Technology

[0002] Hot air guns are core equipment in processes such as plastic hot bending, electronic component welding, and packaging material shrinking. The performance of their nozzles directly affects processing efficiency and finished product quality. Hot air guns mainly use hot air blown from the gun core of the heating resistance wire to heat the workpiece. They are generally used in scenarios such as hot bending of PVC pipes and heat shrinking of cables.

[0003] However, traditional hot air guns mostly heat only one point, which can lead to local overheating and uneven heating of the tube, resulting in deformation, wrinkles, or inconsistent radii at the bend. At the same time, single-point heating requires repeated angle adjustments, which is time-consuming and labor-intensive, making it difficult to meet processing requirements and causing considerable inconvenience to users. Therefore, the applicant proposes a hot air gun bending nozzle to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a hot air gun bending nozzle that improves the coverage of hot air through a surrounding air outlet structure. It can wrap around the surface of PVC pipe 360° without repeatedly adjusting the angle, achieving rapid and uniform heating. It can effectively avoid deformation, wrinkles or inconsistent radii at the bending point due to uneven heating. It is time-saving and labor-saving to operate, meets processing requirements, and brings more convenience to users.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] Hot air gun bending nozzle, including:

[0007] An air outlet mechanism and a protective mechanism assembled within the air outlet mechanism, as well as a mounting mechanism assembled at the bottom of the air outlet mechanism;

[0008] The air outlet mechanism includes an annular pipe, and the inner wall of the annular pipe has a plurality of first air outlets arranged in a ring.

[0009] The protective mechanism includes a protective cover that is slidably installed inside the annular tube. The protective cover is hollow inside, and the inner wall of the protective cover has multiple second air outlets arranged in a ring array.

[0010] The installation mechanism includes an installation sleeve connected to the bottom of the annular tube, the installation sleeve having an installation cavity inside, and a rubber ring being fixed to the inner wall of the installation cavity.

[0011] Preferably, a guide vane is fixedly installed on the inner wall of the annular tube, the guide vane is located adjacent to the first air outlet, and the edge of the guide vane is provided with serrations.

[0012] Preferably, the annular tube and the protective cover are slidably installed together via a sliding joint, and the end surface of the protective cover is provided with a limiting block that abuts against the sliding joint.

[0013] Preferably, one end of the protective cover has an air inlet, and the other end of the protective cover is fixedly installed with a fixing plate.

[0014] Preferably, a handle is fixedly installed at the front end of the fixing plate, a magnetic base is embedded in the bottom of the fixing plate, and a magnetic block corresponding to the magnetic base is embedded in one side of the annular tube.

[0015] Preferably, the inner wall of the mounting cavity is provided with a boss, and the inner wall of the mounting cavity is provided with a limiting groove for mounting the rubber ring.

[0016] Preferably, the mounting sleeve is surrounded by a heat insulation sleeve, and the surface of the heat insulation sleeve is provided with anti-slip grooves.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] (1) This utility model is equipped with a combination of an air outlet mechanism and a protective mechanism. By placing the PVC pipe inside the annular pipe, the sliding protective cover can wrap the PVC pipe to prevent hot air from blowing towards people. Through the first air outlet and the second air outlet, hot air can be blown evenly to the surface of the PVC pipe in 360° without repeated angle adjustment, achieving rapid and uniform heating. It can effectively avoid deformation, wrinkles or inconsistent radii at the bend due to uneven heating. The operation is time-saving and labor-saving, meets processing requirements, and brings more convenience to users.

[0019] (2) The present invention has guide vanes on the inner wall of the annular pipe, which can decompose the hot air blown out of the first air outlet into multi-directional airflow. Combined with the cutting effect of the saw teeth on the airflow, it can break the large-scale eddy and transfer the energy to the small-scale turbulent eddy, reduce the intensity of the central jet, and make the hot air evenly distributed on the surface of the PVC pipe. This can avoid the situation where the wind force is too strong and the outflow causes burns to the user. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the closed configuration of this utility model;

[0021] Figure 2 This is a schematic diagram of the opening structure of this utility model;

[0022] Figure 3This is a cross-sectional structural diagram of the present invention;

[0023] Figure 4 This is a schematic diagram of the air outlet mechanism of this utility model;

[0024] Figure 5 This is a schematic diagram of the protective mechanism structure of this utility model;

[0025] Figure 6 This is a cross-sectional view of the installation mechanism of this utility model;

[0026] In the diagram: 1. Air outlet mechanism; 11. Annular pipe; 12. Sliding port; 13. First air outlet; 14. Guide vane; 15. Serrated edge; 16. Magnetic block; 2. Protective mechanism; 21. Protective cover; 22. Second air outlet; 23. Limiting block; 24. Air inlet; 25. Fixing plate; 26. Handle; 27. Magnetic base; 3. Installation mechanism; 31. Installation sleeve; 32. Boss; 33. Installation cavity; 34. Rubber ring; 35. Heat insulation sleeve; 36. Anti-slip groove; 37. Limiting groove. Detailed Implementation

[0027] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0028] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] Example 1:

[0031] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the hot air gun bending nozzle includes:

[0032] Air outlet mechanism 1, protective mechanism 2 assembled inside air outlet mechanism 1, and mounting mechanism 3 assembled at the bottom of air outlet mechanism 1;

[0033] The air outlet mechanism 1 includes an annular pipe 11, and the inner wall of the annular pipe 11 has a plurality of first air outlets 13 arranged in a ring.

[0034] The protective mechanism 2 includes a protective cover 21 that is slidably installed inside the annular tube 11. The protective cover 21 is hollow inside, and the inner wall of the protective cover 21 has multiple second air outlets 22 arranged in a ring array.

[0035] The mounting mechanism 3 includes a mounting sleeve 31 connected to the bottom of the annular tube 11. The mounting sleeve 31 has a mounting cavity 33 inside, and a rubber ring 34 is fixed to the inner wall of the mounting cavity 33.

[0036] As can be seen from the above, by placing the mounting sleeve 31 on the muzzle of the hot air gun during use, the muzzle can extend into the mounting cavity 33. The rubber ring 34 can fit on the muzzle, which can increase the friction between the mounting sleeve 31 and the muzzle, and prevent the mounting sleeve 31 from loosening and falling off. It can facilitate connection. By placing the PVC pipe to be processed into the annular tube 11 and pulling the protective cover 21 downward to rotate and slide it, it can form a complete circle with the annular tube 11, which can form a 360° wrapping effect on the PVC pipe.

[0037] Hot air blown out by the hot air gun can be guided into the interior of the annular tube 11 and blown out through the first air outlet 13. At the same time, the hot air can enter the interior of the protective cover 21 and be blown out through the second air outlet 22. This allows the hot air to be blown evenly onto the surface of the PVC pipe in 360° without the need for repeated angle adjustments, achieving rapid and uniform heating. This effectively avoids deformation, wrinkles, or inconsistent radii at bends caused by uneven heating. The operation is time-saving and labor-saving, meets processing requirements, and brings more convenience to users.

[0038] Depend on Figure 4 It can be seen that the inner wall of the annular pipe 11 is fixedly installed with a guide vane 14, which is located adjacent to the first air outlet 13, and the edge of the guide vane 14 is provided with a serration 15.

[0039] As can be seen from the above, the guide vane 14 can guide the hot air blown out of the first air outlet 13, which can decompose the airflow into multi-directional airflow. Combined with the cutting effect of the serration 15 on the airflow, it can break the large-scale vortex, transfer the energy to the small-scale turbulent vortex, reduce the intensity of the central jet, and make the hot air evenly distributed on the surface of the PVC pipe. This can prevent the outflow from causing burns to the user due to excessive wind force.

[0040] For details, please refer to Figure 3 , Figure 4 and Figure 5 As shown, the annular tube 11 and the protective cover 21 are slidably installed together via a sliding opening 12, and the end surface of the protective cover 21 is provided with a limiting block 23 that abuts against the sliding opening 12.

[0041] As can be seen from the above, when the protective cover 21 is slid out to its maximum stroke, it can be pressed against the sliding opening 12 by the limiting block 23. The sealing effect between the limiting block 23 and the sliding opening 12 can be achieved to prevent hot air from flowing out from the gap and affecting the use effect.

[0042] For details, please refer to Figure 3 and Figure 5 As shown, an air inlet 24 is provided at one end of the protective cover 21, and a fixing plate 25 is fixedly installed at the other end of the protective cover 21.

[0043] As can be seen from the above, the air inlet 24 enables communication between the inner cavity of the protective cover 21 and the inner cavity of the annular pipe 11. When hot air enters the annular pipe 11, it can also enter the protective cover 21 through the air inlet 24. When the protective cover 21 is closed, the fixing plate 25 can abut against the annular pipe 11 for fitting, which facilitates the support of the protective cover 21.

[0044] Example 2:

[0045] refer to Figure 4 and Figure 5 As shown, a handle 26 is fixedly installed at the front end of the fixed plate 25, a magnetic base 27 is embedded in the bottom of the fixed plate 25, and a magnetic block 16 corresponding to the magnetic base 27 is embedded in one side of the annular tube 11.

[0046] As can be seen from the above, when the protective cover 21 is closed and the fixing plate 25 is attached to the annular tube 11, the magnetic base 27 and the magnetic block 16 can be attracted to each other, which can conveniently fix the protective cover 21 and prevent the protective cover 21 from becoming loose during use. The handle 26 can be used to conveniently control the opening and closing of the protective cover 21.

[0047] refer to Figure 6 As shown, the inner wall of the mounting cavity 33 is provided with a boss 32, and the inner wall of the mounting cavity 33 is provided with a limiting groove 37 for the installation of the rubber ring 34.

[0048] As can be seen from the above, when the nozzle of the hot air gun is inserted into the mounting cavity 33, the protrusion 32 can be used to resist and limit the nozzle, preventing the nozzle from extending further inward. The limiting groove 37 can be used to conveniently limit and fix the rubber ring 34, preventing the rubber ring 34 from falling off.

[0049] refer to Figure 1 and Figure 3 As shown, the outer periphery of the mounting sleeve 31 is wrapped with a heat insulation sleeve 35, and the surface of the heat insulation sleeve 35 is provided with anti-slip grooves 36.

[0050] As can be seen from the above, the heat insulation sleeve 35 can effectively isolate heat and prevent the heat from the hot air gun nozzle from being transferred to the mounting sleeve 31, thus preventing the mounting sleeve 31 from being manually disassembled. This also prevents burns to the hands. The anti-slip groove 36 can limit the hand position, making it easier to hold the mounting sleeve 31 for installation and disassembly operations.

[0051] 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. A hot air gun hot bending nozzle, characterized in that, include: An air outlet mechanism (1) and a protective mechanism (2) assembled in the air outlet mechanism (1), and a mounting mechanism (3) assembled at the bottom of the air outlet mechanism (1); The air outlet mechanism (1) includes an annular pipe (11), and the inner wall of the annular pipe (11) is provided with a plurality of first air outlets (13) arranged in an annular pattern. The protective mechanism (2) includes a protective cover (21) that is slidably installed in the annular tube (11). The protective cover (21) is hollow inside, and the inner wall of the protective cover (21) has multiple second air outlets (22) arranged in a ring array. The installation mechanism (3) includes an installation sleeve (31) connected to the bottom of the annular tube (11). An installation cavity (33) is provided inside the installation sleeve (31), and a rubber ring (34) is fixed to the inner wall of the installation cavity (33).

2. The hot air gun bending nozzle according to claim 1, characterized in that: The inner wall of the annular pipe (11) is fixedly installed with a guide vane (14), the guide vane (14) is located adjacent to the first air outlet (13), and the edge of the guide vane (14) is provided with serrations (15).

3. The hot air gun bending nozzle according to claim 1, characterized in that: The annular tube (11) and the protective cover (21) are slidably installed through a sliding opening (12), and the end surface of the protective cover (21) is provided with a limiting block (23) that abuts against the sliding opening (12).

4. The hot air gun bending nozzle according to claim 1, characterized in that: An air inlet (24) is provided at one end of the protective cover (21), and a fixing plate (25) is fixedly installed at the other end of the protective cover (21).

5. The hot air gun bending nozzle according to claim 4, characterized in that: A handle (26) is fixedly installed at the front end of the fixed plate (25), a magnetic base (27) is embedded in the bottom of the fixed plate (25), and a magnetic block (16) corresponding to the magnetic base (27) is embedded in one side of the annular tube (11).

6. The hot air gun bending nozzle according to claim 1, characterized in that: The inner wall of the mounting cavity (33) is provided with a boss (32), and the inner wall of the mounting cavity (33) is provided with a limiting groove (37) for the installation of the rubber ring (34).

7. The hot air gun bending nozzle according to claim 1, characterized in that: The mounting sleeve (31) is surrounded by a heat insulation sleeve (35), and the surface of the heat insulation sleeve (35) is provided with anti-slip grooves (36).

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