U-shaped return air nozzle of hot air gun

Abstract

The utility model relates to the technical field of hot air gun air nozzles, and discloses a u-shaped air return air nozzle of a hot air gun. The hot air gun air return nozzle with the u-shaped air return function comprises an end plate, an inner arc plate is fixedly installed above the end plate, an air outlet is formed in the surface of the inner arc plate, an outer arc plate is fixedly installed above the end plate, a sealing plate is fixedly installed on the left side of the outer arc plate, a flow guide plate is fixedly installed above the end plate, and the flow guide plate is fixedly installed above the end plate. The flow guide plates are installed between the horizontal structures on the front sides of the end plates at equal intervals in the left-right direction, the included angle between each flow guide plate and the sealing plate is 45 degrees, and hot air blown out of the hot air gun can move rightwards under guiding of the flow guide plates in the process of moving backwards through the tubular structures of the connecting plates and enters the U-shaped structure at the right end of the air duct. The air pressure between the inner arc plate and the outer arc plate is increased, hot air can be exhausted through the air outlet and blown to the heating face, and the front side, the rear side and the side face of the heating face can be heated in the mode.

Description

TECHNICAL FIELD

[0001] The utility model relates to hot -air gun nozzle technical field, concretely is a u type back air of hot -air gun back air nozzle. BACKGROUND

[0002] Hot -air gun is mainly utilize the hot air that the gun core of heating resistance wire blows to carry out the tool of welding and taking off component to component. The air outlet structure of hot -air gun mainly has air deflector pipe and nozzle, and the nozzle of different caliber is used to adapt to different use demand.

[0003] The existing reference announcement number for: CN216462339U Chinese utility model patent, it discloses a kind of hot -air gun nozzle structure, and air deflector pipe plug-in connection, including the nozzle main body and air deflector nozzle being connected with each other, the nozzle main body is inserted in the air outlet end portion of air deflector pipe;And nozzle main body is equipped with fastening structure, the inner wall of fastening structure is equipped with protruding portion, the wall surface of protruding portion is tightly pressed air outlet end portion.The utility model can effectively increase the friction between the air deflector pipe by setting fastening structure and setting protruding portion on the inner wall of fastening structure, prevent nozzle from loosening. By setting the fastening structure with elasticity, the contact force between the air deflector pipe can be further increased by using the elastic compression of fastening structure to air deflector pipe, prevent nozzle from loosening, when the action force between nozzle and air deflector pipe weakens, the compression force can be improved by further pressing fastening structure to air deflector pipe wall surface, prevent nozzle from loosening.

[0004] The existing hot -air gun nozzle can only guide the hot air blown by hot -air gun to blow from one side to heating surface when using, needs to constantly adjust the position of hot -air gun when needing to heat two sides, it is very inconvenient, simultaneously, the nozzle structure of the prior art will produce certain gap when being inserted in the air outlet of hot -air gun, cause part of hot air to flow from the gap between hot -air gun and nozzle. UTILITY MODEL CONTENT

[0005] (I) technical problem solved

[0006] In view of the deficiencies of prior art, the utility model provides a kind of u type back air of hot -air gun back air nozzle, with the advantages that hot air can be guided to blow to the front and back sides of heating surface, and improve the sealing property of connecting portion, solve the above technical problem.

[0007] (II) technical scheme

[0008] To achieve the above object, the utility model provides the following technical scheme: A u-shaped hot air gun back air nozzle of back air of hot air gun, include: end plate, the top of end plate is fixedly installed with inner arc plate, the surface of inner arc plate is provided with air outlet, the top of end plate is fixedly installed with outer arc plate, the left side of outer arc plate is fixedly installed with sealing plate, the top of end plate is fixedly installed with flow guide plate, the front side of sealing plate is fixedly installed with connecting plate, the left side of connecting plate is provided with limit hole, the inside of limit hole is inserted and installed with limit tube, the left end of limit tube is inserted and installed with bolt, the front end of connecting plate is fixedly installed with rubber sleeve, the outside of rubber sleeve is embedded and installed with snap spring, the top and bottom of end plate can close inner arc plate and outer arc plate.

[0009] As the preferred technical scheme of the utility model, the right side of the end plate is circular, the inner arc plate is fixedly installed on the inner side of the top of the end plate, and the air outlets are arrayed on the surface of the inner arc plate.

[0010] As the preferred technical scheme of the utility model, the outer arc plate is fixed on the outer side of the top of the end plate, the end plate is fixedly installed on the top and bottom of the inner arc plate and the outer arc plate, and the sealing plate is fixedly installed on the front and back of the top and bottom end plates.

[0011] As the preferred technical scheme of the utility model, the end plate, the inner arc plate, the outer arc plate and the sealing plate enclose the arc-shaped air duct with the right end, and the flow guide plates are equidistantly installed on the front side horizontal structure of the end plate.

[0012] As the preferred technical scheme of the utility model, the angle between the flow guide plate and the sealing plate is forty-five degrees, the rear end of the connecting plate is a rectangular structure, and the center of the connecting plate is provided with a tubular structure penetrating through the front and back.

[0013] As the preferred technical scheme of the utility model, the limit hole is located on the left side of the tubular structure of the connecting plate, the inner wall of the limit tube is provided with internal threads, and the limit tube is in communication with the inner cavity of the tubular structure of the connecting plate through the limit hole.

[0014] As the preferred technical scheme of the utility model, the bolt is movably connected with the limit tube through the threaded structure, the material of the rubber sleeve is fluorine rubber, the tube diameter of the rubber sleeve is large in front and small at the rear, the snap spring is annular and located on the outer side of the front end of the rubber sleeve, and the end of the bolt will be in contact with the muzzle of the hot air gun by rotating the bolt.

[0015] Compared with the prior art, the utility model provides a kind of hot air gun air return nozzle of u-shaped return air, with following beneficial effects:

[0016] 1, the utility model discloses a setting of inner arc plate, inner arc plate is fixedly installed in the inside above end plate, air outlet is arrayed distribution in the surface of inner arc plate, outer arc plate is fixed in the outside above end plate, end plate is fixedly installed in the upper and lower two ends of inner arc plate and outer arc plate, sealing plate is fixedly installed in the front and rear two ends of upper and lower two end plates, end plate, inner arc plate, outer arc plate and sealing plate are enclosed into the right end arc-shaped air distribution passage, flow guide plate is equidistantly installed between end plate front side horizontal structure, the included angle between flow guide plate and sealing plate is forty-five degrees, the hot air that hot air gun blows will move to right side under the guidance of flow guide plate in the process of moving back through the tubular structure of connecting plate, enters the inside of "U" structure in air distribution passage right end, increases the air pressure between inner arc plate and outer arc plate, and hot air will be discharged through air outlet, and blow to heating surface, this mode can heat the front and rear sides and side of heating surface.

[0017] 2, the utility model discloses a setting of rubber sleeve, the material of rubber sleeve is fluorine rubber, the pipe diameter of rubber sleeve is thick before small, snap spring is annular structure, located rubber sleeve front end outside, the inner diameter of snap spring is less than the inner diameter of connecting plate tubular structure when there is no external force, in use, the snap spring is opened by the gun port of hot air gun, and the rubber sleeve is pressed on the outside of the gun port of hot air gun by the elastic force generated when the snap spring is deformed, to improve the sealing between air nozzle and gun port, avoid partial hot air from the gap between hot air gun and air nozzle. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is overall structure schematic diagram of the utility model;

[0019] Figure 2 It is sealing plate mounting structure schematic diagram of the utility model;

[0020] Figure 3 It is connecting plate mounting structure schematic diagram of the utility model;

[0021] Figure 4 It is rubber sleeve mounting structure schematic diagram of the utility model;

[0022] Wherein: 1, end plate;11, inner arc plate;12, air outlet;13, outer arc plate;14, sealing plate;15, flow guide plate;16, connecting plate;17, limit hole;18, limit tube;19, bolt;110, rubber sleeve;111, snap spring. DETAILED DESCRIPTION

[0023] The embodiments of the utility model are further described in detail below in combination with the drawings and examples. The following examples are used to illustrate the utility model, but cannot be used to limit the scope of the utility model.

[0024] In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more than two;The terms "up", "down", "left", "right", "inside", "outside", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0025] In the description of the utility model, it should be pointed out that, unless otherwise specified and limited, the terms "connected", "connected" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected;It can be mechanically connected, or it can be electrically connected;It can be directly connected, or it can be indirectly connected through an intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0026] Please refer to Figure 1 Figure 4 In the embodiment, a u-shaped hot air gun back air nozzle of hot air gun back air, comprising: end plate 1, the upper portion of end plate 1 is fixedly installed with inner arc plate 11, the surface of inner arc plate 11 is provided with air outlet 12, the upper portion of end plate 1 is fixedly installed with outer arc plate 13, the left side of outer arc plate 13 is fixedly installed with sealing plate 14, the upper portion of end plate 1 is fixedly installed with flow guide plate 15, the front side of sealing plate 14 is fixedly installed with connecting plate 16, the left side of connecting plate 16 is provided with limiting hole 17, limiting hole 17 is installed with limiting tube 18 in the inside, the left end of limiting tube 18 is installed with bolt 19, the front end of connecting plate 16 is fixedly installed with rubber sleeve 110, rubber sleeve 110 is embedded with snap spring 111 on the outside.

[0027] ​The right side of the end plate 1 is annular, the inner arc plate 11 is fixedly installed on the inner side above the end plate 1, the air outlets 12 are arrayed on the surface of the inner arc plate 11, the outer arc plate 13 is fixedly installed on the outer side above the end plate 1, the end plate 1 is fixedly installed on the upper and lower ends of the inner arc plate 11 and the outer arc plate 13, the sealing plate 14 is fixedly installed on the front and rear ends of the end plate 1 on the upper and lower sides, the end plate 1, the inner arc plate 11, the outer arc plate 13 and the sealing plate 14 enclose the arc-shaped air distribution channel with the right end, the flow guide plate 15 is installed equidistantly between the horizontal structures on the front side of the end plate 1, the included angle between the flow guide plate 15 and the sealing plate 14 is forty-five degrees, the rear end of the connecting plate 16 is rectangular, the connecting plate 16 is provided with a tubular structure penetrating through the front and rear, the limiting hole 17 is located on the left side of the tubular structure of the connecting plate 16, the inner wall of the limiting tube 18 is provided with internal threads, the limiting tube 18 communicates with the inner cavity of the tubular structure of the connecting plate 16 through the limiting hole 17, the bolt 19 is movably connected with the limiting tube 18 through the threaded structure, the rubber sleeve 110 is made of fluorine rubber, the tube diameter of the rubber sleeve 110 is large in front and small at the rear, the clamping spring 111 is annular and located on the outer side of the front end of the rubber sleeve 110.

[0028] Specifically, the end plate 1 can limit the relative position between the inner arc plate 11 and the outer arc plate 13, the air outlets 12 on the surface of the inner arc plate 11 can facilitate the hot air exhaust between the inner arc plate 11 and the outer arc plate 13, the sealing plate 14 can close the left end of the air duct, the included angle between the flow guide plate 15 and the sealing plate 14 is forty-five degrees, the flow guide plate 15 can facilitate guiding the hot air to move to the right side, the tubular structure of the connecting plate 16 can facilitate inserting the air nozzle into the nozzle of the hot air gun, the limiting tube 18 can be connected with the connecting plate 16 through the limiting hole 17 on the left side of the tubular structure of the connecting plate 16, the end of the bolt 19 will contact the outer side of the nozzle of the hot air gun when tightened, which increases the relative pressure between the nozzle of the hot air gun and the inner wall of the tubular structure of the connecting plate 16, limits the relative position between the air nozzle and the hot air gun, the rubber sleeve 110 is connected with the nozzle of the hot air gun through the clamping spring 111, and the front small hole diameter part of the rubber sleeve 110 is wrapped on the outer side of the nozzle of the hot air gun through the elastic force of the clamping spring 111 when deformed, so as to improve the sealing performance.

[0029] In use, the inner arc plate 11 is fixedly installed on the inner side above the end plate 1, the air outlets 12 are arrayed on the surface of the inner arc plate 11, the outer arc plate 13 is fixedly installed on the outer side above the end plate 1, the end plate 1 is fixedly installed on the upper and lower ends of the inner arc plate 11 and the outer arc plate 13, the sealing plate 14 is fixedly installed on the front and rear ends of the upper and lower end plates 1, the end plate 1, the inner arc plate 11, the outer arc plate 13 and the sealing plate 14 enclose the right end arc-shaped air duct, the flow guide plates 15 are equidistantly installed on the front side horizontal structure of the end plate 1, the included angle between the flow guide plate 15 and the sealing plate 14 is forty-five degrees, the hot air blown out by the hot air gun will move to the right side under the guidance of the flow guide plate 15 in the process of moving backward through the tubular structure of the connecting plate 16, enter the inside of the "U" shaped structure at the right end of the air duct, increase the air pressure between the inner arc plate 11 and the outer arc plate 13, and the hot air will be discharged through the air outlets 12 and blow to the heating surface, this way can heat the front and rear sides and the side of the heating surface, the material of the rubber sleeve 110 is fluorine rubber, the pipe diameter of the rubber sleeve 110 is thick in front and small at back, the clamping spring 111 is annular structure, located at the outer side of the front end of the rubber sleeve 110, the inner diameter of the clamping spring 111 is smaller than the inner diameter of the tubular structure of the connecting plate 16 when there is no external force, in use, the clamping spring 111 is pushed open through the gun port of the hot air gun, the rubber sleeve 110 is pressed on the outer side of the gun port of the hot air gun through the elastic force generated by the deformation of the clamping spring 111, to improve the sealing between the air nozzle and the gun port, avoid the loss of part of the hot air from the gap between the hot air gun and the air nozzle.

[0030] Although the embodiments of the present application have been shown and described, it is to be understood that for the purpose of the present application, the embodiments can be substantially changed without departing from the spirit and the scope of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A hot air gun return air nozzle of u-shaped return air, characterized in that, Include: The upper side of the end plate (1) is fixedly installed with an inner arc plate (11), the surface of the inner arc plate (11) is provided with an air outlet (12), the upper side of the end plate (1) is fixedly installed with an outer arc plate (13), the left side of the outer arc plate (13) is fixedly installed with a sealing plate (14), the upper side of the end plate (1) is fixedly installed with a guide plate (15), the front side of the sealing plate (14) is fixedly installed with a connecting plate (16), the left side of the connecting plate (16) is provided with a limiting hole (17), the limiting hole (17) is inserted and installed with a limiting tube (18), the left end of the limiting tube (18) is inserted and installed with a bolt (19), the front end of the connecting plate (16) is fixedly installed with a rubber sleeve (110), the outer side of the rubber sleeve (110) is embedded and installed with a snap spring (111).

2. The u-shaped hot air gun return air nozzle according to claim 1, wherein: The right side of the end plate (1) is circular, the inner arc plate (11) is fixedly installed on the inner side of the upper side of the end plate (1), and the air outlet (12) is arrayed on the surface of the inner arc plate (11).

3. The u-shaped hot air gun return air nozzle according to claim 1, wherein: The outer arc plate (13) is fixed to the upper side of the end plate (1), the end plate (1) is fixedly installed on the upper and lower ends of the inner arc plate (11) and the outer arc plate (13), and the sealing plate (14) is fixedly installed on the front and rear ends of the upper and lower end plates (1).

4. The u-shaped hot air gun return air nozzle according to claim 1, wherein: The end plate (1), the inner arc plate (11), the outer arc plate (13) and the sealing plate (14) form a right-arc-shaped air distribution channel, and the guide plate (15) is installed equidistantly between the front side horizontal structures of the end plate (1).

5. The u-shaped hot air gun return air nozzle according to claim 1, wherein: The included angle between the guide plate (15) and the sealing plate (14) is forty-five degrees, the rear end of the connecting plate (16) is rectangular, and the center of the connecting plate (16) is provided with a tubular structure penetrating front and back.

6. The u-shaped hot air gun return air nozzle according to claim 1, wherein: The limiting hole (17) is located on the left side of the tubular structure of the connecting plate (16), the inner wall of the limiting tube (18) is provided with internal threads, and the limiting tube (18) is in communication with the inner cavity of the tubular structure of the connecting plate (16) through the limiting hole (17).

7. The u-shaped hot air gun return air nozzle according to claim 1, wherein: The bolt (19) is movably connected with the limiting tube (18) through the threaded structure, the material of the rubber sleeve (110) is fluorine rubber, the tube diameter of the rubber sleeve (110) is large in front and small at the rear, the snap spring (111) is annular and located on the outer side of the front end of the rubber sleeve (110).

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