Gun body structure of spray gun

Abstract

The utility model discloses a gun body structure of a spray gun, which comprises a gun body, a nozzle and an atomizing air cap, the atomizing air cap is arranged at the front end of the gun body, the nozzle is arranged between the atomizing air cap and the gun body, and the gun body structure further comprises a hollow feed liquid pipeline which is detachably arranged in the gun body. A sleeve part extending towards the interior of the gun body is arranged in the center of the nozzle, the sleeve part is detachably connected with the upper end of the feed liquid pipeline, the feed liquid pipeline and the sleeve part are matched to form a feed liquid channel used for supplying liquid to the nozzle, and the lower end of the feed liquid pipeline is connected with a suction pipe. According to the spray gun, the feed liquid pipeline is detachably arranged in the inner cavity of the gun body, so that the feed liquid pipeline is convenient to disassemble and assemble, and when the spray gun is cleaned, the feed liquid pipeline can be directly disassembled from the gun body so as to be independently cleaned; the valve-needle-free design reduces the complexity of the spray gun, the valve needle does not need to be disassembled and assembled when the spray gun is cleaned, the spray gun is convenient to clean, the spraying effect of the spray gun is improved, and the service life of the spray gun is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to spraying equipment technical field, especially a gun body structure of spray gun. BACKGROUND

[0002] The spray gun is a kind of spraying equipment that atomizes liquid and then sprays the object to be coated to obtain uniform and beautiful coating layer.Electric spray gun is generally composed of gun body, nozzle, valve needle, atomizing cap, material barrel, wind collecting cylinder, fan assembly, power supply assembly and trigger, and the atomization of spray gun is mainly realized by the wind pressure generated by fan assembly through wind collecting cylinder to gun body, so that two wind pressures are formed in gun body, the first wind pressure acts on material barrel through the space in gun body, so that the coating in material barrel is pressed to gun body through suction pipe under the action of wind pressure and is discharged through nozzle, and the second wind pressure passes through the space in gun body and is finally discharged from the gap between atomizing cap and nozzle, so as to atomize the liquid coating sprayed from nozzle.For the specific structure and principle of the existing spray gun, please refer to the direct current spray gun disclosed in Chinese utility model patent (publication number: CN207013187U) and the brushless electric spray gun disclosed in Chinese invention patent (publication number: CN111992348A).

[0003] The liquid material pipeline of the existing electric spray gun is usually formed in the gun body by one-piece injection molding and cannot be disassembled, and since the liquid material pipeline is relatively narrow and has a certain angle, it is difficult for the user to clean the inside of the liquid material pipeline completely.In addition, since the existing electric spray gun is usually provided with a valve needle movably arranged in the liquid material pipeline, one end of the valve needle is correspondingly matched with the nozzle, the other end of the valve needle is connected to the trigger, and a valve needle spring is arranged between the valve needle and the liquid material pipeline, so that the valve needle can be disassembled when cleaning the spray gun, but since the valve needle is connected to the trigger, the valve needle is not convenient to disassemble and is not conducive to user operation.Furthermore, since the valve needle spring is arranged, the valve needle will be ejected under the elastic force of the valve needle spring when disassembling the valve needle, and the user needs to find the valve needle, which may even result in the loss of the valve needle;at the same time, the arrangement of the valve needle spring also makes the installation of the valve needle extremely inconvenient.

[0004] Therefore, it is necessary to improve the prior art. UTILITY MODEL CONTENTS

[0005] The utility model discloses a gun body structure of spray gun to solve the problem that the liquid material pipeline is formed in the gun body by one-piece injection molding and is provided with a valve needle in the prior art, and the spray gun cannot be conveniently disassembled and cleaned.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0007] The gun body structure of a spray gun comprises a gun body, a nozzle and an atomizing cap, the atomizing cap is arranged at the front end of the gun body, the nozzle is arranged between the atomizing cap and the gun body, the gun body is provided with an airflow channel, a first air passage is formed between the atomizing cap and the nozzle and is communicated with the airflow channel, a material liquid pipeline is arranged in the gun body in a hollow manner, a second air passage is formed between the material liquid pipeline and the gun body and is communicated with the airflow channel, a sleeve part extending into the gun body is arranged at the center of the nozzle, the sleeve part is detachably connected with the upper end of the material liquid pipeline, the material liquid pipeline and the sleeve part cooperatively form a material liquid channel for supplying liquid to the nozzle, and a suction pipe is connected to the lower end of the material liquid pipeline.

[0008] Further, the material liquid pipeline is provided with a plug-in interface extending towards the front end of the gun body, and the sleeve part of the nozzle is plug-in cooperated with the plug-in interface.

[0009] Further, the plug-in interface is arranged in an inclined upward manner relative to the material liquid pipeline.

[0010] Further, the upper end of the material liquid pipeline is provided with a plug.

[0011] Further, an opening is arranged on the gun body, the plug is arranged at the opening, a mounting groove is arranged at the opening, and the upper end of the material liquid pipeline is plug-in cooperated with the mounting groove.

[0012] Further, the outer peripheral wall of the material liquid pipeline is provided with a thickened part, and the thickened part is arranged in a grid shape.

[0013] Further, the gun body comprises a first body arranged in a horizontal manner, a second body arranged in a vertical manner and a third body arranged in an inclined upward manner relative to the second body, and the end portions of the second body and the third body are connected with the end portion of the first body.

[0014] Further, the second body is provided with a mounting cavity for mounting the material liquid pipeline, and the second air passage is formed between the material liquid pipeline and the mounting cavity.

[0015] Further, the atomizing cap is detachably connected with the gun body through a clamping mechanism, the clamping mechanism comprises a protrusion arranged on the outer peripheral wall of the front end of the gun body and a connecting groove arranged on the inner peripheral wall of the atomizing cap and limit cooperated with the protrusion, and the connecting groove comprises an opening slot for the protrusion to enter and a limiting slot for limiting the protrusion to slide out.

[0016] Further, the material liquid pipeline is made of transparent material.

[0017] After the above structure is adopted, the spray gun has the following beneficial effects:

[0018] (1) The utility model discloses a gun body structure of spray gun, including gun body, nozzle and atomization air cap, the atomization air cap sets up at the front end of gun body, the nozzle sets up between atomization air cap and gun body, be equipped with airflow channel in the gun body, the first air passage that forms with airflow channel intercommunication between atomization air cap and nozzle, still including the liquid pipeline that hollow sets up, the liquid pipeline detachably sets up in the gun body, the second air passage that forms with airflow channel intercommunication between the liquid pipeline and gun body, the centre of nozzle is provided with the sleeve portion that extends towards the gun body, the sleeve portion is detachably connected with the upper end of liquid pipeline, and the liquid pipeline and sleeve portion cooperate and form the liquid channel for supplying liquid to the nozzle, and the lower end of liquid pipeline is connected with the suction tube. The utility model discloses through the design of valve needle exemption and the design of detachable liquid pipeline, improves the convenience and cleanliness of gun body cleaning. The liquid pipeline is detachably arranged in the gun body, and the liquid pipeline is convenient to disassemble and assemble. When the spray gun is cleaned, the liquid pipeline can be directly removed from the gun body, so that the liquid pipeline is cleaned separately, the cleaning of the liquid pipeline is more convenient and thorough, and the accumulation of residual liquid in the liquid pipeline is avoided. The design of valve needle exemption reduces the complexity of the spray gun, and the valve needle does not need to be disassembled and assembled when the spray gun is cleaned, so that the cleaning of the spray gun is more convenient and thorough, the spraying effect and service life of the spray gun are improved, and the manufacturing difficulty and maintenance workload of the spray gun are reduced.

[0019] (2) The utility model discloses a gun body structure of spray gun, and the liquid pipeline adopts transparent material and is made. The liquid pipeline is made of transparent material, which is convenient for users to observe during cleaning, and ensures that the liquid pipeline is cleaned thoroughly. ACCURACY

[0020] In order to more clearly illustrate the specific embodiment of the utility model, the following will be needed to use the drawings in the specific embodiment description briefly introduced, obviously, the following description in the drawings is some embodiments of the utility model, for those skilled in the art, under the premise of not paying creative labor, still can obtain other drawings according to these drawings.

[0021] Figure 1 It is the overall structure explosion drawing of the utility model;

[0022] Figure 2 It is the overall structure cross-sectional view (configuration has liquid barrel) of the utility model;

[0023] Figure 3 It is the Figure 2 The structure enlarged schematic drawing of A of the utility model;

[0024] Figure 4is a cooperation connection schematic view of the material liquid pipeline and the suction pipe assembly of the utility model;

[0025] Figure 5 is a three-dimensional view of the gun body and the plug of the utility model;

[0026] Figure 6 is a sectional view of the gun body of the utility model.

[0027] Figures 1 to 6 the middle serial number is:

[0028] 1, gun body; 11, opening; 111, mounting groove; 12, first body; 13, second body; 131, mounting cavity; 14, third body; 15, protruding block; 16, protruding rib; 17, second sealing ring; 18, extension cover; 181, annular groove; 2, nozzle; 21, sleeve part; 22, nozzle opening; 3, atomizing cap; 31, through hole; 4, material liquid pipeline; 41, plug-in interface; 42, thickened part; 43, protruding ring; 431, first sealing ring; 5, suction pipe; 51, cover; 52, gravity ball; 6, plug; 7, material bucket. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned purpose, features and advantages of the utility model more apparent, easy to understand, the specific embodiments of the utility model are explained in detail below in combination with the drawings. In the following description, a lot of specific details are set forth in order to give a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the utility model, so the utility model is not limited by the following disclosed specific embodiments.

[0030] In the description of the utility model, it should be understood that if these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" 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, therefore it cannot be understood as a limitation on the utility model.

[0031] In addition, if these terms "first", "second" appear, these terms are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first", "second" can be explicitly or implicitly included at least one of the features. In the description of the present application, if the term "a plurality of" appears, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0032] In the present application, unless otherwise specifically defined and limited, if the terms "mounting", "connecting", "connecting", "fixing" and the like appear, these terms should be understood in a broad sense. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; 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, or it can be the internal communication or interaction relationship of two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0033] In the present application, unless otherwise specifically defined and limited, if there is a description such as "on" or "below" the first feature in the second feature, the meaning can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0034] It should be noted that if an element is referred to as "fixed to" or "provided on" another element, it can be directly on another element or there can be a middle element. If an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. If present, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in the present application are only for illustrative purposes and do not indicate the only implementation.

[0035] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0036] As Figures 1 to 6As shown, a gun body structure of a spray gun, comprising a gun body 1, a nozzle 2 and an atomizing cap 3, the atomizing cap 3 is arranged at the front end of the gun body 1, the nozzle 2 is arranged between the atomizing cap 3 and the gun body 1, the gun body 1 is provided with an airflow channel, a first air passage is formed between the atomizing cap 3 and the nozzle 2 and communicated with the airflow channel, further comprising a hollow liquid pipeline 4, the liquid pipeline 4 is detachably arranged in the gun body 1, a second air passage is formed between the liquid pipeline 4 and the gun body 1 and communicated with the airflow channel, a sleeve part 21 extending into the gun body 1 is arranged at the center of the nozzle 2, the sleeve part 21 is detachably connected with the upper end of the liquid pipeline 4, the liquid pipeline 4 and the sleeve part 21 cooperatively form a liquid channel for supplying liquid to the nozzle 2, and a suction pipe 5 is connected with the lower end of the liquid pipeline 4.

[0037] In further embodiments, the nozzle 2 is provided with a nozzle port 22 communicated with the sleeve part 21, the center of the atomizing cap 3 is provided with a through hole 31 for accommodating the nozzle port 22, and the nozzle port 22 is gap-fitted with the through hole 31.

[0038] Based on the above embodiments, the gun body structure of the spray gun is provided, comprising a gun body 1, a nozzle 2 and an atomizing cap 3, the atomizing cap 3 is arranged at the front end of the gun body 1, the nozzle 2 is arranged between the atomizing cap 3 and the gun body 1, the gun body 1 is provided with an airflow channel, a first air passage is formed between the atomizing cap 3 and the nozzle 2 and communicated with the airflow channel, further comprising a hollow liquid pipeline 4, the liquid pipeline 4 is detachably arranged in the gun body 1, a second air passage is formed between the liquid pipeline 4 and the gun body 1 and communicated with the airflow channel, a sleeve part 21 extending into the gun body 1 is arranged at the center of the nozzle 2, the sleeve part 21 is detachably connected with the upper end of the liquid pipeline 4, the liquid pipeline 4 and the sleeve part 21 cooperatively form a liquid channel for supplying liquid to the nozzle 2, and a suction pipe 5 is connected with the lower end of the liquid pipeline 4. The valve needle-free design and the detachable design of the liquid pipeline 4 improve the convenience and cleanliness of cleaning the gun body 1. The liquid pipeline 4 is detachably arranged in the gun body 1, which is convenient to disassemble and assemble, and when the spray gun is cleaned, the liquid pipeline 4 can be directly removed from the gun body 1, so that the liquid pipeline 4 can be cleaned alone, making the cleaning of the liquid pipeline 4 more convenient and thorough, and effectively avoiding the accumulation of residual liquid in the liquid pipeline 4. The valve needle-free design reduces the complexity of the spray gun, and the valve needle does not need to be disassembled when the spray gun is cleaned, making the cleaning of the spray gun more convenient and thorough, improving the spraying effect and service life of the spray gun; at the same time, the valve needle-free design also reduces the manufacturing difficulty and maintenance workload of the spray gun.

[0039] In the prior art, the valve needle mainly plays two roles, one is to open or close the nozzle port 22 by the valve needle to control the spraying of the paint, when the spray gun works, the valve needle is separated from the nozzle port 22, and the nozzle port 22 area is separated and opened, at this time the paint is sprayed through the nozzle 2; when the spray gun stops working, the valve needle is inserted into the nozzle port 22 to abut and close the nozzle port 22, at this time the paint is blocked and cannot be sprayed, that is, the stop function is realized. The second is to adjust the spraying flow of the nozzle port 22: control the displacement of the valve needle in the front and back directions in the valve needle mounting cavity 131, and finally adjust the gap between the valve needle and the nozzle port 22 to be opened, and realize flow control.

[0040] Although the present application does not provide a valve needle, the above two functions can be realized. The rear end of the gun body 1 is connected with a main machine module, the main machine module is provided with a fan assembly, and the fan assembly comprises a stop motor. The present application realizes the stop function by adopting the stop motor. Specifically, when the spray gun works, the fan assembly is started by the trigger, so that two wind pressures are formed in the gun body 1, the first wind pressure enters the bucket 7 through the airflow channel and the second air duct, so that the paint in the bucket 7 is under the action of wind pressure and enters the nozzle port 22 along the suction pipe 5, the liquid pipeline 4 and the sleeve part 21, and is sprayed out of the nozzle port 22; the second wind pressure flows to the front end of the gun body 1 through the airflow channel, and is finally discharged from the first air duct between the atomizing air cap 3 and the nozzle 2, so that the liquid paint sprayed out of the nozzle port 22 is atomized; when the spray gun needs to stop working, the fan assembly is closed by the trigger, and the stop motor stops working immediately, so that the spray gun stops spraying work.

[0041] The present application can realize the adjustment of the spraying flow in two ways: one is to replace the nozzle 2 with different aperture nozzle ports 22; the second is to configure a nozzle assembly capable of adjusting the aperture size of the nozzle port 22.

[0042] As another preferred embodiment of the present application, the liquid pipeline 4 is provided with a plug-in interface 41 extending to the front end of the gun body 1, and the sleeve part 21 of the nozzle 2 is plug-in matched with the plug-in interface 41. The gun body 1 comprises a first body 12 arranged horizontally, a second body 13 arranged vertically and a third body 14 arranged obliquely upwardly with the second body 13, and the end portions of the second body 13 and the third body 14 are connected with the end portion of the first body 12. The plug-in interface 41 is arranged obliquely upwardly relative to the liquid pipeline 4. The second body 13 is provided with a mounting cavity 131 for mounting the liquid pipeline 4, and the second air duct is formed between the liquid pipeline 4 and the mounting cavity 131. The outer peripheral wall of the liquid pipeline 4 is provided with a thickened part 42, and the thickened part 42 is arranged in a grid shape. Figure 2 and Figure 6As shown, during installation, the liquid pipeline 4 is inserted into the installation cavity 131, so that the second air duct is formed between the installation cavity 131 and the liquid pipeline 4; and the sleeve part 21 arranged at the rear end of the nozzle 2 is inserted into the insertion port 41. During operation, the fan assembly is started, so that two air pressures are formed in the gun body 1; the first air pressure enters the liquid bucket 7 through the air flow channel and the second air duct, so that the paint in the liquid bucket 7 is sprayed out of the nozzle port 22 under the action of the air pressure along the suction pipe 5, the liquid pipeline 4 and the sleeve part 21; and the second air pressure flows to the side of the nozzle port 22 through the air flow channel and the first air duct, so that the liquid paint sprayed out of the nozzle port 22 is atomized. In the embodiment, the thickened part 42 arranged in a grid shape facilitates the air pressure to enter the liquid bucket 7 from the first air duct.

[0043] In the embodiment, the insertion port 41 is arranged in an upward inclination relative to the liquid pipeline 4; after the sleeve part 21 arranged at the rear end of the nozzle 2 is inserted into the insertion port 41, the sleeve part 21 is also arranged in an upward inclination relative to the liquid pipeline 4; the upward inclined sleeve part 21 is accommodated in the upward inclined third body 14, so that the nozzle port 22 is located above the liquid pipeline 4 in an inclination. The structure design makes the liquid in the sleeve part 21 flow back to the liquid pipeline 4 when the motor stops working, and finally flows into the liquid bucket 7, so that the liquid is prevented from overflowing from the nozzle port 22.

[0044] As another preferred scheme of the utility model, the upper end of the liquid pipeline 4 is provided with a plug 6. An opening 11 is arranged on the gun body 1, the plug 6 is arranged at the opening 11, an installation groove 111 is arranged at the opening 11, and the upper end of the liquid pipeline 4 is inserted into the installation groove 111. The opening 11 is provided with the installation groove 111, the upper end of the liquid pipeline 4 is inserted into the installation groove 111, a convex ring 43 is arranged on the outer circumferential wall of the upper end of the liquid pipeline 4, and a first sealing ring 431 is arranged between the convex ring 43 and the installation groove 111. In the embodiment, as shown in the figure, the plug 6 is provided with the convex ring 43, and the plug 6 is connected to the inner circumferential wall of the upper end of the liquid pipeline 4 through the convex ring 43. Figure 2 、 Figure 4 and Figure 5 As shown in the figure, the plug 6 is provided with the convex ring 43, and the plug 6 is connected to the inner circumferential wall of the upper end of the liquid pipeline 4 through the convex ring 43. During installation of the liquid pipeline 4, the liquid pipeline 4 is inserted into the installation cavity 131, so that the upper end of the liquid pipeline 4 is inserted into the installation groove 111, and then the plug 6 is inserted into the upper end of the liquid pipeline 4, so that the upper end of the liquid pipeline 4 and the opening 11 are both closed by the plug 6, as shown in the figure. Figure 3 The design of the plug 6 avoids that the liquid pipeline 4 has a closed end, and the existence of the closed end is not convenient for thorough cleaning of the liquid pipeline 4; after cleaning is completed, the plug 6 is installed to the end of the liquid pipeline 4, so that liquid paint is prevented from overflowing. The arrangement of the first sealing ring 431 increases the sealing property between the sleeve part 21 and the installation groove 111.

[0045] As another preferred scheme of the utility model, the outer wall of the suction pipe 5 is integrally provided with a cover 51, and the upper end of the suction pipe 5 is inserted and matched with the lower end of the liquid pipeline 4, so that the nozzle 2 is communicated with the suction pipe 5 through the liquid conveying pipeline. In the embodiment, as shown in the drawings, the gun body 1 is integrally formed with an extension cover 18, and the extension cover 18 is internally provided with an annular groove 181 for mounting the cover 51. The suction pipe 5 is connected to the gun body 1 through the clamping and matching of the cover 51 and the annular groove 181. The material bucket 7 is screwed with the extension cover 18, and the bottom end of the suction pipe 5 is connected with a hollow gravity ball 52. The main function of the gravity ball 52 is to ensure that the bottom end of the suction pipe 5 is always located at the bottom end of the material bucket 7, so as to avoid the situation that the paint at the bottom end of the material bucket 7 cannot be sprayed out. In further embodiments, the user can replace the material bucket 7 with different volumes according to the needs, such as replacing the material bucket 7 with a smaller volume. Figure 6

[0046] Obviously, the above embodiments are only examples for clearly illustrating, and are not limited to the embodiments. For ordinary skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and also impossible to enumerate all the embodiments. The obvious changes or variations derived therefrom are still within the protection scope of the utility model.​

Claims

1. A gun body structure of a spray gun, comprising a gun body (1), a nozzle (2) and an atomizing cap (3), the atomizing cap (3) is arranged at the front end of the gun body (1), the nozzle (2) is arranged between the atomizing cap (3) and the gun body (1), the gun body (1) is provided with an airflow channel, a first air passage is formed between the atomizing cap (3) and the nozzle (2) and communicates with the airflow channel, characterized in that: The gun body further comprises a hollow liquid pipeline (4) which is detachably arranged in the gun body, and a second air passage is formed between the liquid pipeline (4) and the gun body, the center of the nozzle (2) is provided with a sleeve (21) extending into the gun body, the sleeve (21) is detachably connected with the upper end of the liquid pipeline (4), the liquid pipeline (4) and the sleeve (21) cooperatively form a liquid passage for supplying liquid to the nozzle (2), and the lower end of the liquid pipeline (4) is connected with a suction pipe (5).

2. A lance body structure according to claim 1, characterized in that: The liquid pipeline (4) is provided with a plug-in interface (41) extending towards the front end of the gun body, and the sleeve (21) of the nozzle (2) is plug-in matched with the plug-in interface (41).

3. A lance body structure according to claim 2, characterized in that: The plug-in interface (41) is arranged in an inclined upward manner relative to the liquid pipeline (4).

4. A lance body structure according to claim 2, characterized in that: The upper end of the liquid pipeline (4) is provided with a plug (6).

5. A lance body structure according to claim 4, characterized in that: The gun body (1) is provided with an opening (11), the plug (6) is arranged at the opening (11), the opening (11) is provided with a mounting groove (111), and the upper end of the liquid pipeline (4) is plug-in matched with the mounting groove (111).

6. A lance body structure according to claim 2, characterized in that: The outer peripheral wall of the liquid pipeline (4) is provided with a thickened portion (42) arranged in a grid shape.

7. The lance body structure according to claim 1, characterized by: The gun body (1) comprises a first body (12) arranged in a horizontal manner, a second body (13) arranged in a vertical manner, and a third body (14) arranged in an inclined upward manner relative to the second body (13), and the end portions of the second body (13) and the third body (14) are connected with the end portion of the first body (12).

8. A lance body structure according to claim 7, characterized in that: The second body (13) is provided with a mounting cavity (131) for mounting the liquid pipeline (4), and the second air passage is formed between the liquid pipeline (4) and the mounting cavity (131).

9. A lance body structure according to any one of claims 1 to 8, characterized in that: The atomizing cap (3) is detachably connected with the gun body (1) through a clamping mechanism, the clamping mechanism comprises a protrusion (15) arranged on the front end of the gun body (1) and a connecting groove (31) arranged on the inner peripheral wall of the atomizing cap (3) and limited matched with the protrusion (15), and the connecting groove (31) comprises an opening groove (311) for the protrusion (15) to enter and a limiting groove (312) for limiting the protrusion (15) to slide out.

10. A lance body structure according to any one of claims 1 to 8, characterized in that: The liquid pipeline (4) is made of transparent material.

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