Hot air gun tuyere

Abstract

The utility model discloses a hot air gun tuyere which comprises a base, an air guide pipe is installed on the top of the base in a threaded mode, an air outlet pipe is arranged at the top end of the air guide pipe, top grooves are formed in the two sides of the top end of the air outlet pipe, air blocking curtains are installed on the two sides of the top of an air return plate, and a horizontal plate is fixed to the side face of the vertical portion of the air return plate. A positioning bolt is installed in a hole formed in the horizontal plate in a penetrating mode, a positioning nut is installed on the positioning bolt, the positioning bolt is fixed to the upper side face and the lower side face of the tail end of the side baffle, a top hole is formed in the top of the wind shield in a penetrating mode, a vertical threaded rod is installed in the top hole in a penetrating mode, and a locking nut is installed on the vertical threaded rod. A top baffle is fixed to the bottom end of the vertical threaded rod. According to the hot air gun tuyere, the novel structural design is adopted, hot air blown out by a hot air gun can be concentrated and controlled when the hot air gun is used for heating a soldering tin ring heat shrinkage pipe, and therefore adjacent cables or other parts are prevented from being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of use of electric wires and cables, in particular to a hot air gun nozzle. Background Art

[0002] The solder ring heat shrink tube contains a tin ring, and there are hot melt adhesive rings on both sides of the tin ring. The tin ring and the hot melt adhesive ring are arranged in parallel. The solder ring heat shrink tube simplifies the welding operation, improves the production efficiency and reliability, and is widely used in the fields of aviation cable harness processing.

[0003] When using solder ring heat shrink tube, a hot air gun is generally used to heat the solder ring heat shrink tube to melt the solder ring and shrink the heat shrink tube. When using a hot air gun to heat the solder ring heat shrink tube, the hot air is easily blown onto the cables or other wiring harness components around the solder ring, causing damage, which will affect the performance of the final product, resulting in product performance degradation, reliability and life reduction. Currently, there is no device that can prevent this from happening. Utility Model Content

[0004] The utility model aims to provide a hot air gun nozzle to solve the problem proposed in the above background technology that when a hot air gun is used to heat a solder ring heat shrink tube, the hot air is easily blown onto the cables or other wiring harness components around the solder ring, thereby causing damage, which will affect the performance of the final product and lead to degradation of product performance, reduced reliability and life.

[0005] The top of the air filter is provided with a threaded connection to the top of the base, and an air outlet pipe is provided on the top of the air outlet pipe. The top of the air outlet pipe is provided with a top groove on both sides of the top of the air outlet pipe. A support nut is installed in the middle and upper part of the air outlet pipe, and the top of the support nut is affixed to the bottom wall of the return air bowl. The air outlet pipe is affixed to the inner wall of the central hole of the return air bowl. One side of the outer wall of the base is connected and fixed with the return air plate and the bottom end of the wind shield plate. Wind curtains are installed on the top of the return air plate at both sides of the top of the return air plate. A horizontal plate is fixed on the side of the vertical part of the return air plate, and a positioning bolt is installed through the holes opened in the horizontal plate, and a positioning bolt is installed on the positioning bolt, and the positioning bolt is fixed on the upper and lower sides of the end of the side baffle plate. A top hole is opened at the top of the wind shield plate, and a vertical threaded rod is installed through the top hole. A locking nut is installed on the vertical threaded rod, and a top baffle is fixed at the bottom end of the vertical threaded rod.

[0006] Preferably, the air guide duct and the air outlet duct are integrated structures made of metal materials, the air guide duct is configured as a hollow truncated cone, and the top of the air outlet duct is a flat structure with curved surfaces at both ends.

[0007] Preferably, the outer wall of the air outlet pipe is threadedly connected to the support nut, and the air outlet pipe is slidably connected to the central hole of the return air bowl.

[0008] Preferably, the front view shapes of the return air plate and the wind shield plate are both "L"-shaped, and the length and width of the wind shield plate are greater than those of the return air plate.

[0009] Preferably, the wind shield curtain and the top groove are symmetrically distributed about the center of the air outlet pipe, and the front view shape of the top groove is semicircular.

[0010] Preferably, the positioning bolts fit tightly against the inner walls of the holes opened on the horizontal plate, the positioning bolts and the horizontal plate are symmetrically distributed about the side baffles, the side baffles are symmetrically distributed about the center of the wind baffle, and the center of the side baffles is on the same horizontal plane as the top of the air outlet pipe.

[0011] Preferably, the locking nut is symmetrically distributed up and down about the center of the top hole on the vertical threaded rod, the vertical threaded rod is symmetrically distributed about the top baffle, both ends of the top baffle are bent downward, and the overall length of the top baffle is greater than the diameter of the return air bowl.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the hot air gun nozzle adopts a new structural design, which can concentrate and control the hot air blown out by the hot air gun when the hot air gun is used to heat the solder ring heat shrink tube, thereby preventing damage to adjacent cables or other components;

[0013] 1. The hot air is blocked from the bottom by the support nut and the return air bowl to prevent the top wind shield structure from blocking the return hot air from being discharged from the bottom. The side baffles with adjustable angles and symmetrical distribution are used to ensure that the hot air will not escape from the bottom and both sides.

[0014] 2. Through the height-adjustable top baffle, the return air plate and the top of the wind shield, as well as the wind curtains symmetrically distributed on both sides, try to prevent hot air from escaping from the sides and the top, concentrate the hot air, and cooperate with the structural design of the top of the air outlet duct and the semicircular top groove to ensure that the solder ring heat shrink tube can be evenly heated to ensure the shrinking effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0017] Figure 3 This is a side view of the structure of the utility model;

[0018] Figure 4 It is a schematic diagram of the top groove and side baffle structure of the utility model from a top view.

[0019] In the figure: 1. base; 2. air guide duct; 3. air outlet duct; 4. top groove; 5. support nut; 6. return air bowl; 7. return air plate; 8. wind shield; 9. wind curtain; 10. horizontal plate; 11. positioning bolt; 12. positioning nut; 13. side baffle; 14. top hole; 15. vertical threaded rod; 16. locking nut; 17. top baffle. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4 The utility model provides a technical solution: a hot air gun nozzle, including a base 1, an air guide duct 2, an air outlet duct 3, a top groove 4, a support nut 5, a return air bowl 6, a return air plate 7, a wind shield 8, a wind curtain 9, a horizontal plate 10, a positioning bolt 11, a positioning nut 12, a side baffle 13, a top hole 14, a vertical threaded rod 15, a locking nut 16 and a top baffle 17. The top of the base 1 is threadedly installed with an air guide duct 2, the top of the air guide duct 2 is provided with an air outlet duct 3, top grooves 4 are provided on both sides of the top of the air outlet duct 3, a support nut 5 is installed in the middle and upper part of the air outlet duct 3, the top of the support nut 5 is in contact with the bottom of the return air bowl 6, and the air outlet duct 3 is in contact with the bottom of the return air bowl 6. The inner wall of the center hole of the return air bowl 6 fits well, one side of the outer wall of the base 1 is connected and fixed to the bottom of the return air plate 7 and the wind shield 8, wind curtains 9 are installed on both sides of the top of the return air plate 7, and a horizontal plate 10 is fixed to the side of the vertical part of the return air plate 7. A positioning bolt 11 is installed through the hole opened on the horizontal plate 10, and a positioning nut 12 is installed on the positioning bolt 11. The positioning bolt 11 is fixed to the upper and lower sides of the end of the side baffle 13. A top hole 14 is opened through the top of the wind shield 8, and a vertical threaded rod 15 is installed through the top hole 14. A locking nut 16 is installed on the vertical threaded rod 15, and a top baffle 17 is fixed to the bottom of the vertical threaded rod 15.

[0022] In this example, the air guide duct 2 and the air outlet duct 3 are integrated structures made of metal. The air guide duct 2 is set to a hollow cone shape, and the top of the air outlet duct 3 is a flat structure with curved surfaces at both ends. The above structural design allows the hot air to be effectively concentrated and can be evenly blown upwards through the flat structure of the air outlet duct 3.

[0023] The outer wall of the air outlet duct 3 is threadedly connected to the support nut 5, and the air outlet duct 3 is slidably connected to the central hole of the return air bowl 6. The above structural design enables the working height of the support nut 5 and the return air bowl 6 to be easily adjusted, and adaptively adjusted according to temperature requirements and air volume.

[0024] The front view shape of the return air plate 7 and the wind shield plate 8 are both "L"-shaped, and the length and width of the wind shield plate 8 are larger than the return air plate 7. The above structural design enables the return air plate 7 and the wind shield plate 8 to effectively block the hot air and prevent the hot air from escaping.

[0025] The windshield 9 and the top groove 4 are symmetrically distributed about the center of the air outlet pipe 3. The front view shape of the top groove 4 is semicircular. The above structural design allows the solder ring heat shrink tube to be placed in the center of the top groove 4 and heated evenly. The windshield 9 can effectively prevent the hot air from escaping.

[0026] The positioning bolt 11 fits tightly with the inner wall of the hole opened in the horizontal plate 10, the positioning bolt 11 and the horizontal plate 10 are symmetrically distributed about the side baffle 13, the side baffle 13 is symmetrically distributed about the center of the wind shield 8, and the center of the side baffle 13 is on the same horizontal plane as the top of the air outlet pipe 3. The above-mentioned structural design enables the side baffle 13 to carry the positioning bolt 11 and stably rotate along the inner wall of the hole opened in the horizontal plate 10 to adjust the inclination angle, thereby blocking the hot air from both sides.

[0027] The locking nut 16 is symmetrically distributed on the vertical threaded rod 15 about the center of the top hole 14, and the vertical threaded rod 15 is symmetrically distributed about the top baffle 17. The two ends of the top baffle 17 are bent downward, and the overall length of the top baffle 17 is greater than the diameter of the return air bowl 6. The above structural design enables the working height of the top baffle 17 to be easily adjusted, and cooperates with the return air plate 7 and the wind shield 8 to block the hot air from the top and both sides of the top.

[0028] Working principle: When using this device, first put the base 1 on the top of the hot air gun outlet, and the device as a whole is vertically upward, then rotate the support nut 5 to move vertically on the air outlet pipe 3 to adjust the working height of the return air bowl 6, then rotate the symmetrically distributed positioning nuts 12 up and down away from the horizontal plate 10, and move the side baffle 13 with the positioning bolts 11 along the holes opened on the horizontal plate 10 to adjust the use angle, until the angle of the symmetrically distributed side baffle 13 is appropriate, rotate the symmetrically distributed positioning nuts 12 to reset and squeeze the horizontal plate 10 to fix it;

[0029] Then, the rotationally symmetrically distributed locking nuts 16 are moved away from the upper and lower end surfaces of the top of the wind shield 8, and the vertical threaded rod 15 is pushed to slide vertically along the top hole 14 until the height of the top baffle 17 is appropriate. The rotationally symmetrically distributed locking nuts 16 are reset to squeeze the upper and lower end surfaces of the top of the wind shield 8 and fix them. Then the hot air gun connected to the base 1 can be started, and the hot air is blown out from the top of the air outlet pipe 3. The cable with the hot solder ring heat shrink tube is passed horizontally through the wind shield curtain 9 from one side, and the hot solder ring heat shrink tube is placed in the center of the top groove 4. The hot welding is slowly and evenly rotated. The tin ring heat shrink tube makes the hot solder ring heat shrink tube shrink evenly due to heat. The return air bowl 6, return air plate 7, wind shield 8, wind shield curtain 9, side baffle 13 and top baffle 17 cooperate to block the hot air from multiple directions, further blocking the overflowing hot air, thereby reducing the hot air blowing onto the cables or other wiring harness components around the solder ring, thereby avoiding the performance degradation, reliability and life reduction of the cables or other wiring harness components around the solder ring heat shrink tube due to excessive heat. This is the working principle of the hot air gun nozzle.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hot air gun nozzle, comprising a base (1), characterized in that: The top of the base (1) is threadedly mounted with an air guide pipe (2), the top of the air guide pipe (2) is provided with an air outlet pipe (3), both sides of the top of the air outlet pipe (3) are provided with top grooves (4), the middle and upper part of the air outlet pipe (3) is mounted with a support nut (5), the top of the support nut (5) is fitted with the bottom of the return air bowl (6), the air outlet pipe (3) is fitted with the inner wall of the central hole of the return air bowl (6), one side of the outer wall of the base (1) is connected and fixed with the bottom of the return air plate (7) and the wind shield plate (8), the top of the return air plate (7) is provided with wind shield curtains (9), the return air plate (7) is provided with a plurality of wind shield curtains (9), and the return air plate (7) is provided with a plurality of wind shield curtains (9). ) A horizontal plate (10) is fixed on the side of the vertical part, a positioning bolt (11) is installed through the hole opened on the horizontal plate (10), a positioning nut (12) is installed on the positioning bolt (11), the positioning bolt (11) is fixed to the upper and lower sides of the end of the side baffle (13), a top hole (14) is opened through the top of the wind shield (8), a vertical threaded rod (15) is installed through the top hole (14), a locking nut (16) is installed on the vertical threaded rod (15), and a top baffle (17) is fixed to the bottom end of the vertical threaded rod (15).

2. The hot air gun nozzle according to claim 1, characterized in that: The air guide pipe (2) and the air outlet pipe (3) are an integrated structure made of metal material; the air guide pipe (2) is arranged in a hollow truncated cone shape; and the top of the air outlet pipe (3) is a flat structure with curved surfaces at both ends.

3. The hot air gun nozzle according to claim 1, characterized in that: The outer wall of the air outlet pipe (3) is threadedly connected to the support nut (5), and the air outlet pipe (3) is slidably connected to the central hole of the return air bowl (6).

4. The hot air gun nozzle according to claim 1, characterized in that: The front view shapes of the return air plate (7) and the wind shield plate (8) are both "L"-shaped, and the length and width of the wind shield plate (8) are greater than those of the return air plate (7).

5. The hot air gun nozzle according to claim 1, characterized in that: The wind screen (9) and the top groove (4) are both symmetrically distributed about the center of the air outlet pipe (3), and the top groove (4) has a semicircular shape when viewed from the front.

6. The hot air gun nozzle according to claim 1, characterized in that: The positioning bolt (11) is tightly fitted with the inner wall of the hole opened on the horizontal plate (10); the positioning bolt (11) and the horizontal plate (10) are symmetrically distributed with respect to the side baffle (13); the side baffle (13) is symmetrically distributed with respect to the center of the wind shield (8); the center of the side baffle (13) is on the same horizontal plane as the top end of the air outlet pipe (3).

7. The hot air gun nozzle according to claim 1, characterized in that: The locking nut (16) is symmetrically distributed on the vertical threaded rod (15) about the center of the top hole (14), and the vertical threaded rod (15) is symmetrically distributed about the top baffle (17). Both ends of the top baffle (17) are bent downward, and the overall length of the top baffle (17) is greater than the diameter of the return air bowl (6).

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