Blower gun nozzle structure and hot air gun

Abstract

The utility model relates to the technical field of hot air guns, in particular to a blower gun nozzle structure and a hot air gun, the structure comprises a gun nozzle main body, a blade assembly and a limiting cover; the gun nozzle body comprises a first air opening and is used for being connected with a hot air gun body, the limiting cover comprises a second air opening, the gun nozzle body and the limiting cover are arranged in an overlapped mode, and the second air opening and the first air opening form an air channel. The blade assembly is located between the gun nozzle body and the limiting cover and comprises an adjusting structure used for adjusting the area of the blade assembly for sealing the air channel. According to the blower gun nozzle structure, when the blowing area of the blower gun nozzle structure needs to be changed, the interference amount between the blade assembly and the air channel is adjusted through the adjusting structure, namely the area of the blade assembly for sealing the air channel is changed, and therefore the air outlet amount / air outlet area of the air channel can be adjusted; during adjustment, the blower gun nozzle structure does not need to be replaced, adjustment operation is simple and rapid, working efficiency is higher, in addition, the heat gun does not need to be provided with blower gun nozzle structures of different sizes, and cost can be effectively saved.

Description

Technical Field

[0001] The utility model relates to the technical field of hot air guns, in particular to an air gun nozzle structure and a hot air gun. Background Art

[0002] A hot air gun uses hot air to weld or remove components. A hot air gun usually consists of a blower motor and a heating unit. When the blower motor is started, the heating unit begins to heat up, thereby generating a hot air flow. The hot air flow is concentrated or diffused through a nozzle or nozzle accessories, thereby achieving the purpose of welding or removing.

[0003] The nozzles and nozzle accessories of existing hot air guns are of fixed sizes. When in use, the area of ​​the component they are applicable to is also fixed. When switching from a nozzle and nozzle accessories applicable to a large area to a nozzle and nozzle accessories applicable to a small area, the current nozzle and nozzle accessories need to be disassembled and wait for them to cool down before proceeding. The work efficiency is low and there are certain safety risks. Utility Model Content

[0004] In order to solve at least the above technical problems existing in the prior art, the utility model provides an air gun nozzle structure and a hot air gun.

[0005] On the one hand, the utility model provides a wind gun nozzle structure, including a nozzle body, a blade assembly and a limit cover; the nozzle body includes a first air port, the nozzle body is used to be connected to a hot air gun body, the limit cover includes a second air port, the nozzle body and the limit cover are arranged in a superimposed manner, and the second air port and the first air port form an air duct; the blade assembly is located between the nozzle body and the limit cover, and the blade assembly includes an adjustment structure, and the adjustment structure is used to adjust the area of ​​the air duct blocked by the blade assembly.

[0006] In some embodiments, the blade assembly includes a plurality of blades, and the plurality of blades have a set area; the adjustment structure is used to adjust the blocking area of ​​the air duct by the plurality of blades, thereby adjusting the area of ​​the air duct blocked by the blade assembly.

[0007] In some embodiments, the blade includes a contact edge and a sliding edge. Among two adjacent blades, the contact edge of one blade fits with the sliding edge of an adjacent blade; the contact edge of the blade slides back and forth along the sliding edge of the adjacent blade, so that the blades gather or disperse toward the axis of the air duct.

[0008] In some embodiments, the adjustment structure includes a slide groove and a driving protrusion; the first side of the blade is fitted with the limit cover, the first side of the blade is provided with the slide groove, the slide groove is arranged along the sliding direction of the sliding edge, the driving protrusion is arranged on the side of the limit cover that is fitted with the first side of the blade, and the driving protrusion is arranged in the slide groove; the limit cover is used to rotate with the center of the air duct as the center of the circle, and when the limit cover rotates, the driving protrusion is located in the slide groove and slides, and abuts against the inner wall of the slide groove to drive the blade to move.

[0009] In some embodiments, a first limiting structure is also included, which includes a first limiting protrusion and a first limiting groove with a set length; the first limiting protrusion is arranged on the second side of the blade, and the first limiting groove is arranged on the side where the nozzle body and the second side of the blade are in contact, and the first limiting protrusion is located in the first limiting groove, and as the blade slides, the first limiting protrusion moves in the first limiting groove.

[0010] In some embodiments, a second limiting structure is also included, and the second limiting structure includes a second limiting protrusion and a second limiting groove; the second limiting protrusion is arranged on the side where the nozzle body is in contact with the second side of the blade, and the second limiting groove is arranged on the limiting cover, and the second limiting protrusion is located in the second limiting groove; the second limiting groove has an arc along its length direction, and the arc center of the second limiting groove coincides with the center of the circle of the limiting cover, and as the limiting cover rotates, the second limiting protrusion moves in the second limiting groove.

[0011] In some embodiments, a convex groove is provided on a side of the nozzle body away from the blade assembly, and the nozzle body is detachably connected to the hot air gun body through the convex groove.

[0012] In some embodiments, a pull assembly is provided on the limiting cover, and the pull assembly is used to drive the limiting cover to rotate.

[0013] In some embodiments, the pulling assembly includes a ring arranged on the edge of the limit cover; it also includes a fixed platform, and a raised column is provided on the surface of the fixed platform. When the limit cover is rotated, the limit cover is fitted with the fixed platform, and the raised column is passed through the ring.

[0014] On the other hand, the utility model further provides a hot air gun, comprising the above-mentioned air gun nozzle structure.

[0015] The utility model provides a gun nozzle structure and a hot air gun. When in use, the gun nozzle body is connected to the hot air gun body, and the hot air flow generated by the hot air gun body is blown out through the air duct. When the blowing area of ​​the gun nozzle structure needs to be changed, the interference between the blade assembly and the air duct is adjusted by the adjustment structure, that is, the area of ​​the air duct blocked by the blade assembly is changed, so that the air volume and the air outlet area of ​​the air duct can be adjusted. The technical solution of the utility model does not need to replace the gun nozzle structure when adjusting the air outlet area, and the adjustment operation is simple, fast and efficient, and the work efficiency is higher. In addition, the hot air gun body does not need to be equipped with gun nozzle structures of different sizes, which can effectively save costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] By reading the detailed description below with reference to the accompanying drawings, the above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, wherein:

[0017] In the drawings, the same or corresponding reference numerals represent the same or corresponding parts.

[0018] Figure 1 A schematic diagram of the structure of the air gun nozzle provided by an embodiment of the utility model;

[0019] Figure 2 A schematic diagram of the structure of one side of the nozzle body of the air gun nozzle structure provided in an embodiment of the utility model;

[0020] Figure 3 A schematic diagram of the structure of the other side of the nozzle body of the air gun nozzle structure provided in an embodiment of the utility model;

[0021] Figure 4 A schematic diagram of the structure of one side of the blade assembly in the air gun nozzle structure provided by an embodiment of the utility model;

[0022] Figure 5 A schematic diagram of the structure of the other side of the blade assembly in the air gun nozzle structure provided by an embodiment of the utility model;

[0023] Figure 6 A schematic structural diagram of a blade of a blade assembly in a wind gun nozzle structure provided in an embodiment of the utility model;

[0024] Figure 7 A schematic diagram of the structure of a limit cover in an air gun nozzle structure provided in an embodiment of the utility model;

[0025] Figure 8 A schematic diagram of the structure of a fixed platform in the air gun nozzle structure provided by an embodiment of the utility model;

[0026] Fig. 9 A schematic structural diagram of a hot air gun provided in an embodiment of the utility model.

[0027] In the figure:

[0028] 1: Gun nozzle body; 2: Blade assembly; 3: Limit cover; 4: Hot air gun body; 5: Fixed platform;

[0029] 11: first air outlet; 12: first limiting groove; 13: second limiting protrusion; 14: convex groove;

[0030] 21: blade; 22: abutting edge; 23: sliding edge; 24: sliding groove; 25: first limiting protrusion;

[0031] 31: second air outlet; 32: driving protrusion; 33: second limiting groove; 34: collar;

[0032] 51: raised column; 52: bracket. DETAILED DESCRIPTION

[0033] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0034] An embodiment of the utility model provides an air gun nozzle structure, comprising a nozzle body, a blade assembly and a limit cover; the nozzle body is used to connect with the hot air gun body, and the nozzle body and the limit cover cooperate to clamp the blade assembly in the middle, and the interference between the blade assembly and the air duct is adjusted by adjusting the position of the blade assembly, thereby achieving the purpose of adjusting the air outlet area / air outlet volume.

[0035] The following is a detailed description of the various structures of the air gun nozzle structure provided by the embodiment of the utility model, as well as the positional relationship and connection relationship between the various structures, in conjunction with the accompanying drawings.

[0036] like Figures 1 to 8 As shown, in the embodiment of the utility model, the gun nozzle body 1 is in a sheet shape, and includes a first air port 11, and the first air port 11 is used to pass the hot air flow. For example, the gun nozzle body 1 is circular, and the first air port 11 is a circular port, and the center of the circular port coincides with the center of the gun nozzle body 1. One side of the gun nozzle body 1 is connected to the hot air gun body 4, and the other side is connected to the blade assembly 2 and the limit cover 3.

[0037] For example, a convex groove 14 is provided on one side of the gun nozzle body 1 away from the blade assembly 2, and the gun nozzle body 1 is detachably connected to the hot air gun body 4 through the convex groove 14. As shown in the figure, an annular groove is provided on the connection side of the hot air gun body 4, and the convex groove 14 is provided in a ring shape with the same diameter. When the gun nozzle body 1 is connected to the hot air gun body 4, the convex groove 14 is inserted into the annular groove. If the two are connected by interference fit, a stable connection can be achieved. The annular groove on one side of the hot air gun body 4 is a universal structure. Therefore, the annular convex groove 14 is provided on one side of the gun nozzle body 1, which has universality and can be applied to different hot air gun bodies 4.

[0038] The blade assembly 2 and the limiting cover 3 are arranged on the side of the gun nozzle body 1 away from the convex groove 14. For example, the limiting cover 3 is in the form of a sheet, and its shape is circular, and the size of the circle is the same or similar to that of the gun nozzle body 1. The limiting cover 3 includes a second air port 31, and the second air port 31 is a circular hole. The center of the second air port 31 coincides with the center of the limiting cover 3, and the diameter of the second air port 31 is the same or the same as the diameter of the first air port 11. The second air port 31 and the first air port 11 form an air duct, and the hot air flow generated in the hot air gun body 4 is blown out through the air duct. In the embodiment of the utility model, the purpose of adjusting the air outlet area / air outlet volume is achieved by blocking the area of ​​the air duct by the blade assembly 2.

[0039] Continue to refer Figures 1 to 8 As shown, in the embodiment of the utility model, the blade assembly 2 includes a plurality of blades 21, and the plurality of blades 21 have a set area; the blocking area of ​​the air duct by the plurality of blades 21 is adjusted by adjusting the structure, thereby achieving the adjustment of the area of ​​the air duct blocked by the blade assembly 2.

[0040] For example, the position of the blade 21 can be adjusted by rotating the limit cover 3. Specifically, the adjustment structure includes a slide groove 24 and a driving protrusion 32; the first side of the blade 21 is in contact with the limit cover 3, and the first side of the blade 21 is provided with a slide groove 24 arranged along the sliding direction of the sliding edge 23 of the blade 21, and the side of the limit cover 3 in contact with the first side of the blade 21 is provided with a driving protrusion 32, and the driving protrusion 32 is arranged in the slide groove 24; the limit cover 3 is used to rotate with the center of the air duct as the center of the circle, and when the limit cover 3 rotates, the driving protrusion 32 is located in the slide groove 24 and slides, and abuts against the inner wall of the slide groove 24 to drive the blade 21 to move.

[0041] The slide slot 24 is tilted, the first end of the slide slot 24 is close to the center of the blade 21, and the second end is far away from the center of the blade 21. As the limiting cover 3 rotates, the driving protrusion 32 on the limiting cover 3 interferes with the side wall of the slide slot 24. Specifically, the limiting cover 3 rotates along the first direction, and the driving protrusion 32 gradually slides from the first end to the second end. During the sliding process, the driving protrusion 32 abuts against the side wall of the slide slot 24, thereby driving the blade 21 to gather toward the axis of the air duct. On the contrary, the limiting cover 3 rotates along the second direction (the opposite direction of the first direction), and the driving protrusion 32 gradually slides from the second end to the first end. During the sliding process, the driving protrusion 32 abuts against the side wall of the slide slot 24, thereby driving the blade 21 to disperse away from the axis of the air duct. The gathering or dispersion of multiple blades 21 in the air duct achieves the purpose of adjusting the air duct area blocked by the blade assembly 2.

[0042] For example, the blade 21 includes a contact edge 22 and a sliding edge 23. Among two adjacent blades 21, the contact edge 22 of one blade 21 fits with the sliding edge 23 of the adjacent blade 21; the contact edge 22 of the blade 21 slides back and forth along the sliding edge 23 of the adjacent blade 21, so that the blades 21 gather or disperse toward the axis of the air duct.

[0043] When the multiple blades 21 are gathered, they can form a nearly circular surface that can completely block the air duct. When they are dispersed, they can form a nearly circular ring shape, and the hole in the middle of the ring is greater than or equal to the inner diameter of the air duct. In this state, the blades 21 do not block the air duct. In the embodiment of the utility model, the blades 21 are adjusted from gathering to dispersing to change the blocking area of ​​the air duct. The rotation angle of the limit cover 3 and the interference amount of the blades 21 in the air duct are selected according to the actual air outlet demand.

[0044] In an embodiment of the utility model, the air gun nozzle structure also includes a first limiting structure, which includes a first limiting protrusion 25 and a first limiting groove 12 with a set length; the first limiting protrusion 25 is arranged on the second side of the blade 21, and the first limiting groove 12 is arranged on the side where the nozzle body 1 is in contact with the second side of the blade 21, and the first limiting protrusion 25 is located in the first limiting groove 12. As the blade 21 slides, the first limiting protrusion 25 moves in the first limiting groove 12.

[0045] When the blades 21 gather or disperse, they move between the gun nozzle body 1 and the limiting cover 3, wherein the cooperation between the driving protrusion 32 and the slide groove 24 can have a certain limiting effect on the blades 21. In order to further enable the blades 21 to move on the set path, a first limiting structure can be set, the first limiting structure includes a first limiting groove 12 and a first limiting protrusion 25, the setting direction of the first limiting groove 12 is the sliding direction of the blades 21, when the adjustment structure drives the blades 21 to move, through the cooperation between the first limiting groove 12 and the first limiting protrusion 25, the first limiting protrusion 25 can only slide along the direction of the first limiting groove 12, thereby achieving the purpose of limiting the blades 21.

[0046] Continue to refer Figures 1 to 7 As shown, in the embodiment of the utility model, the air gun nozzle structure also includes a second limiting structure, and the second limiting structure includes a second limiting protrusion 13 and a second limiting groove 33; the second limiting protrusion 13 is arranged on the side where the gun nozzle body 1 is in contact with the second side of the blade 21, and the second limiting groove 33 is arranged on the limiting cover 3, and the second limiting protrusion 13 is located in the second limiting groove 33; the second limiting groove 33 has an arc along its length direction, and the arc center of the second limiting groove 33 coincides with the circle center of the limiting cover 3, and as the limiting cover 3 rotates, the second limiting protrusion 13 moves in the second limiting groove 33.

[0047] When adjusting the position of the blade 21, it is necessary to rotate the limit cover 3 to provide a driving force for the rotation of the blade 21. The rotation range of the limit cover 3 can be determined by cooperating with the second limit protrusion 13 and the second limit groove 33. That is, the second limit groove 33 has a certain length. When the limit cover 3 rotates along the first direction, it finally abuts against one end of the second limit groove 33. When it rotates along the second direction, it abuts against the other end of the second limit groove 33. The length of the second limit groove 33 satisfies the rotation angle of the limit cover 3.

[0048] For example, as shown in the figure, the second limiting groove 33 is a through hole, the end of the second limiting protrusion 13 passes through the second limiting groove 33, and the end of the second limiting groove 33 includes a sliding block, which cooperates with the gun nozzle body 1 to limit the position of the limiting cover 3 to ensure that the limiting cover 3 can clamp the blade assembly 2 between the limiting cover 3 and the gun nozzle body 1.

[0049] Continue to refer Figures 1 to 8 As shown, in the embodiment of the utility model, a pull assembly is provided on the limit cover 3, and the limit cover 3 is driven to rotate by the pull assembly. The limit cover 3 can be adjusted by coordinating the pull assembly with the auxiliary tool. In this way, when the hot air gun body 4 is used, there is no need to wait for it to cool down before rotating the limit cover 3.

[0050] For example, the pull assembly includes a collar 34 disposed on the edge of the limit cover 3; Figure 7As shown, the air gun nozzle structure also includes a fixed platform 5, and a protruding column 51 is provided on the surface of the fixed platform 5. When the limiting cover 3 is rotated, the limiting cover 3 fits with the fixed platform 5, and the protruding column 51 is inserted into the ring 34.

[0051] For example, a plurality of rings 34 are arranged on the edge of the limit cover 3, the rings 34 and the limit cover 3 are located in the same plane, and the plurality of rings 34 are evenly distributed in the circumferential direction of the limit cover 3. Accordingly, a plurality of raised columns 51 are arranged on the fixed platform 5. When the limit cover 3 needs to be rotated, the rings 34 on the limit cover 3 are sleeved on the raised columns 51, and then the main part of the hot air gun body 4 is rotated to adjust the position of the blade 21.

[0052] For example, a bracket 52 is provided on one side of the fixed platform 5 , and when the collar 34 is connected to the raised column 51 , the bracket 52 can be used to support the hot air gun body 4 , thereby improving stability during operation.

[0053] like Fig. 9 As shown, the embodiment of the utility model further provides a hot air gun body 4, comprising the above-mentioned air gun nozzle structure. The end of the hot air gun body 4 is connected to the air gun nozzle structure, and the air gun nozzle structure of the hot air gun body 4 forms an air outlet structure with an adjustable air duct aperture.

[0054] The utility model provides a gun nozzle structure and a hot air gun body 4. When in use, the gun nozzle body 1 is connected to the hot air gun body 4, and the hot air flow generated by the hot air gun body 4 is blown out through the air duct. When the blowing area of ​​the gun nozzle structure needs to be changed, the interference between the blade assembly 2 and the air duct is adjusted by the adjustment structure, that is, the area of ​​the air duct blocked by the blade assembly 2 is changed, so that the air volume and the air outlet area of ​​the air duct can be adjusted. The technical solution of the utility model does not need to replace the gun nozzle structure when adjusting the air outlet area, and the adjustment operation is simple, fast and efficient. In addition, the hot air gun body 4 does not need to be equipped with gun nozzle structures of different sizes, which can effectively save costs.

[0055] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

[0056] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0057] The above are only specific implementations of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A wind gun nozzle structure, characterized in that: It comprises a gun nozzle body (1), a blade assembly (2) and a limiting cover (3); The gun nozzle body (1) comprises a first air port (11), and the gun nozzle body (1) is used to be connected to a hot air gun body (4); The limiting cover (3) comprises a second air port (31), the gun nozzle body (1) and the limiting cover (3) are arranged in a superimposed manner, and the second air port (31) and the first air port (11) form an air duct; The blade assembly (2) is located between the gun nozzle body (1) and the limiting cover (3), and the blade assembly (2) comprises an adjustment structure, and the adjustment structure is used to adjust the area of ​​the air duct blocked by the blade assembly (2).

2. The air gun nozzle structure according to claim 1, characterized in that: The blade assembly (2) comprises a plurality of blades (21), and the plurality of blades (21) have a set area; The adjustment structure is used to adjust the blocking area of ​​the air duct by the plurality of blades (21), so as to adjust the area of ​​the air duct blocked by the blade assembly (2).

3. The air gun nozzle structure according to claim 2, characterized in that: The blade (21) comprises an abutting edge (22) and a sliding edge (23); and of two adjacent blades (21), the abutting edge (22) of one blade (21) is in contact with the sliding edge (23) of the adjacent blade (21); The abutting edge (22) of the blade (21) slides back and forth along the sliding edge (23) of the adjacent blade (21), so that the blade (21) gathers or disperses toward the axis of the air duct.

4. The air gun nozzle structure according to claim 3, characterized in that: The adjustment structure comprises a slide groove (24) and a driving protrusion (32); The first side of the blade (21) is in contact with the limiting cover (3), the first side of the blade (21) is provided with the sliding groove (24), the sliding groove (24) is arranged along the sliding direction of the sliding edge (23), the side of the limiting cover (3) in contact with the first side of the blade (21) is provided with the driving protrusion (32), and the driving protrusion (32) is arranged in the sliding groove (24); The limiting cover (3) is used to rotate with the center of the air duct as the center of the circle. When the limiting cover (3) rotates, the driving protrusion (32) slides in the sliding groove (24) and abuts against the inner wall of the sliding groove (24) to drive the blade (21) to move.

5. The air gun nozzle structure according to claim 4, characterized in that: It also includes a first limiting structure, which includes a first limiting protrusion (25) and a first limiting groove (12) with a set length; The first limiting protrusion (25) is arranged on the second side of the blade (21), and the first limiting groove (12) is arranged on the side where the nozzle body (1) and the second side of the blade (21) are in contact, and the first limiting protrusion (25) is located in the first limiting groove (12). As the blade (21) slides, the first limiting protrusion (25) moves in the first limiting groove (12).

6. The air gun nozzle structure according to claim 5, characterized in that: It also includes a second limiting structure, which includes a second limiting protrusion (13) and a second limiting groove (33); The second limiting protrusion (13) is arranged on a side where the nozzle body (1) is in contact with the second side of the blade (21), the second limiting groove (33) is arranged on the limiting cover (3), and the second limiting protrusion (13) is located in the second limiting groove (33); The second limiting groove (33) has an arc along its length direction, the arc center of the second limiting groove (33) coincides with the circle center of the limiting cover (3), and as the limiting cover (3) rotates, the second limiting protrusion (13) moves in the second limiting groove (33).

7. The air gun nozzle structure according to any one of claims 1 to 6, characterized in that: A convex groove (14) is provided on a side of the gun nozzle body (1) away from the blade assembly (2), and the gun nozzle body (1) is detachably connected to the hot air gun body (4) via the convex groove (14).

8. The air gun nozzle structure according to any one of claims 1 to 6, characterized in that: The limiting cover (3) is provided with a pull assembly, and the pull assembly is used to drive the limiting cover (3) to rotate.

9. The air gun nozzle structure according to claim 8, characterized in that: The pulling assembly comprises a collar (34) arranged on the edge of the limiting cover (3); It also comprises a fixed platform (5), the surface of which is provided with a protruding column (51); when the limiting cover (3) is rotated, the limiting cover (3) fits the fixed platform (5), and the protruding column (51) is inserted into the sleeve ring (34).

10. A hot air gun, characterized in that: The invention comprises the air gun nozzle structure as claimed in any one of claims 1 to 9.

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