Spray gun with adjustable pressure

Abstract

The utility model relates to the technical field of spray guns, and discloses a pressure-adjustable spray gun which comprises a body, an air inlet pipe is fixedly inserted into the body, an air inlet hole is formed in the air inlet pipe, a feeding pipe is fixedly inserted into the body, a feeding hole is formed in the feeding pipe, and the feeding hole is communicated with the air inlet hole. A thread structure is arranged on the outer circumferential face of the feeding pipe, and a spray head is fixedly connected into the body in an inserted mode. According to the pressure-adjustable spray gun, a threaded pipe is driven to ascend and descend by rotating a control rod, a rubber plug is promoted to ascend and descend, then the opening size of a pressure adjusting opening is controlled, and the effects that the spraying pressure of the spray gun can be adjusted according to needs, and the flexibility and practicability of the spray gun are improved are achieved; the problems that an automobile chassis armor needs to be sprayed through a spray gun, an existing spray gun is not provided with a pressure adjusting device, the pressure of the spray gun cannot be adjusted according to needs in the spraying process, the spraying effect is affected, and the flexibility and practicability of the spray gun are reduced are solved.

Description

Technical Field

[0001] The present application relates to the technical field of spray guns, and in particular to a pressure-adjustable spray gun. Background Art

[0002] Car chassis armor is an adhesive rubber asphalt coating, also known as car chassis anti-collision, anti-rust and sound insulation coating. Its main function is to spray on the exposed parts of the vehicle chassis, wheel hub, fuel tank, car lower panel, trunk, etc., to form a firm elastic protective layer, thereby preventing moisture, acid rain, and salt from corroding the vehicle chassis metal and preventing the chassis from rusting and corrosion.

[0003] The car chassis armor needs to be sprayed with a spray gun. The existing spray guns do not have a pressure regulating device, which makes it impossible to adjust the pressure of the spray gun according to the needs during the spraying operation, affecting the spraying effect and reducing the flexibility and practicality of the spray gun. Utility Model Content

[0004] In view of the shortcomings of the prior art, the present application provides a pressure-adjustable spray gun, which has the advantages of being able to adjust the spray pressure of the spray gun according to needs, improving the flexibility and practicality of the spray gun, etc., and solves the problem that automobile chassis armor needs to be sprayed with a spray gun, and the existing spray guns do not have a pressure regulating device, resulting in the inability to adjust the pressure of the spray gun according to needs during the spraying operation, affecting the spraying effect and reducing the flexibility and practicality of the spray gun.

[0005] To achieve the above-mentioned objectives, the present application provides the following technical solutions: a pressure-adjustable spray gun, comprising a main body, an air inlet pipe fixedly inserted inside the main body, an air inlet hole opened inside the air inlet pipe, a feed pipe fixedly inserted inside the main body, a feed hole opened inside the feed pipe, a threaded structure provided on the outer circumferential surface of the feed pipe, a spray head fixedly inserted inside the main body, a sliding plug slidably connected inside the main body, a sliding rod fixedly connected to one side of the sliding plug, the outer circumferential surface of the sliding rod is slidably connected to the inside of the main body, a pressure-regulating column fixedly connected inside the main body, a pressure-regulating port opened inside the pressure-regulating column, a control rod rotatably inserted inside the pressure-regulating column, a threaded tube threadedly connected to the outer circumferential surface of the control rod, a rubber plug fixedly sleeved on the outer circumferential surface of the threaded tube, the outer circumferential surface of the rubber plug is slidably connected to the inner wall of the pressure-regulating column.

[0006] Through the above scheme, since the automobile chassis armor needs to be sprayed with a spray gun, the existing spray gun has no pressure regulating device, which makes it impossible to adjust the pressure of the spray gun as needed during the spraying operation, affecting the spraying effect and reducing the flexibility and practicality of the spray gun. By rotating the control lever to drive the threaded tube to rise and fall, the rubber plug is prompted to rise and fall, and then the opening size of the pressure regulating port is controlled to achieve the effect of adjusting the spray pressure of the spray gun, thereby improving the flexibility and practicality of the spray gun.

[0007] Furthermore, the feed pipe is threadedly connected to the storage box via a threaded structure.

[0008] Through the above solution, the material storage box is installed and disassembled through the threaded structure, which is convenient for replacing and adding paint.

[0009] Furthermore, a spring is fixedly connected to one side of the sliding plug, and the other end of the spring is fixedly connected to the inside of the body.

[0010] Through the above solution, the spring applies a reaction force to the sliding plug, so that the sliding plug can automatically move back.

[0011] Furthermore, a collar is slidably sleeved on the outer circumferential surface of the main body, one side of the collar is fixedly connected to two connecting plates, and the side of the connecting plate away from the collar is fixedly connected to the outer circumferential surface of the sliding rod.

[0012] Through the above scheme, the slide rod can be moved through the collar and the connecting plate, thereby driving the slide plug to move, thereby prompting the spray gun to operate.

[0013] Furthermore, a handle is fixedly sleeved on the outer circumferential surface of the main body, and the outer surface of the connecting plate is slidably plugged into the inside of the handle.

[0014] Through the above solution, the spray gun can be taken and placed by the handle, which provides convenience for the user, and restricts the connecting plate, so that the connecting plate always moves horizontally.

[0015] Furthermore, a limiting ring is fixedly sleeved on the outer circumferential surface of the control rod, and the outer circumferential surface of the limiting ring is rotatably connected to the inside of the pressure regulating column.

[0016] Through the above solution, the control rod is restricted to prevent the control rod from sliding and rising and falling, thereby increasing the stability of the control rod movement.

[0017] Furthermore, a limiting rod is fixedly connected to the interior of the pressure regulating column, and an outer circumferential surface of the limiting rod is slidably plugged into the interior of the threaded tube.

[0018] Through the above solution, the threaded tube is restricted to prevent the threaded tube from rotating following the control rod, thereby increasing the stability of the threaded tube movement.

[0019] Furthermore, a hand wheel is fixedly sleeved on the outer circumferential surface of the control rod, and the outer circumferential surface of the hand wheel is provided with anti-skid grooves arranged at equal distances.

[0020] Through the above solution, the user can rotate the control rod through the hand wheel and prevent the hand from slipping, thereby providing convenience for the user.

[0021] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0022] The pressure-adjustable spray gun drives the threaded tube to rise and fall by rotating the control lever, prompting the rubber plug to rise and fall, and then controlling the opening size of the pressure regulating port, thereby achieving the effect of being able to adjust the spray pressure of the spray gun according to needs, improving the flexibility and practicality of the spray gun, and solving the problem that the chassis armor of the automobile needs to be sprayed with a spray gun, and the existing spray gun has no pressure regulating device, resulting in the inability to adjust the pressure of the spray gun according to needs during the spraying operation, affecting the spraying effect, and reducing the flexibility and practicality of the spray gun. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is the overall three-dimensional structure diagram of this application;

[0024] Figure 2 This is the overall upward structural diagram of this application;

[0025] Figure 3 This is the overall cross-sectional structural diagram of this application;

[0026] Figure 4 For this application Figure 3 Enlarged structural diagram at point A.

[0027] In the figure:

[0028] 1. Main body; 2. Air inlet pipe; 3. Air inlet hole; 4. Feed pipe; 5. Feed hole; 6. Storage box; 7. Nozzle; 8. Sliding plug; 9. Sliding rod; 10. Spring; 11. Ring; 12. Connecting plate; 13. Handle; 14. Pressure regulating column; 15. Pressure regulating port; 16. Control rod; 17. Limiting ring; 18. Threaded tube; 19. Rubber plug; 20. Limiting rod; 21. Handwheel. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0030] See also Figure 1 , Figure 2 and Figure 3A pressure-adjustable spray gun in this embodiment includes a main body 1, an air inlet pipe 2 is fixedly inserted inside the main body 1, an air inlet hole 3 is opened inside the air inlet pipe 2, a feed pipe 4 is fixedly inserted inside the main body 1, a feed hole 5 is opened inside the feed pipe 4, a threaded structure is provided on the outer circumferential surface of the feed pipe 4, a nozzle 7 is fixedly inserted inside the main body 1, a sliding plug 8 is slidably connected inside the main body 1, a sliding rod 9 is fixedly connected to one side of the sliding plug 8, the outer circumferential surface of the sliding rod 9 is slidably connected to the inside of the main body 1, a pressure regulating column 14 is fixedly connected inside the main body 1, a pressure regulating port 15 is opened inside the pressure regulating column 14, a control rod 16 is rotatably inserted inside the pressure regulating column 14, a threaded tube 18 is threadedly connected to the outer circumferential surface of the control rod 16, a rubber plug 19 is fixedly sleeved on the outer circumferential surface of the threaded tube 18, and the outer circumferential surface of the rubber plug 19 is slidably connected to the inner wall of the pressure regulating column 14.

[0031] See also Figure 1 , Figure 2 and Figure 3 The outer circumferential surface of the feed pipe 4 is provided with a threaded structure, and the feed pipe 4 is threadedly connected to the storage box 6 through the threaded structure. The storage box 6 is installed and disassembled through the threaded structure, which is convenient for replacing and adding paint.

[0032] See also Figure 3 A spring 10 is fixedly connected to one side of the sliding plug 8, and the other end of the spring 10 is fixedly connected to the inside of the body 1. The spring 10 applies a reaction force to the sliding plug 8, so that the sliding plug 8 can automatically move back.

[0033] See also Figure 1 , Figure 2 and Figure 3 The outer circumferential surface of the main body 1 is slidably sleeved with a collar 11, and one side of the collar 11 is fixedly connected to two connecting plates 12. The side of the connecting plate 12 away from the collar 11 is fixedly connected to the outer circumferential surface of the slide rod 9. The slide rod 9 can be moved by the collar 11 and the connecting plate 12, thereby driving the sliding plug 8 to move, thereby prompting the spray gun to operate.

[0034] See also Figure 1 and Figure 2 The outer circumferential surface of the main body 1 is fixedly sleeved with a handle 13, and the outer surface of the connecting plate 12 is slidably inserted into the inside of the handle 13. The spray gun can be taken and placed by the handle 13, which provides convenience for the user and restricts the connecting plate 12, prompting the connecting plate 12 to always move horizontally.

[0035] See also Figure 3 and Figure 4 The outer circumference of the control rod 16 is fixedly sleeved with a limit ring 17, and the outer circumference of the limit ring 17 is rotatably connected to the inside of the pressure regulating column 14 to limit the control rod 16, prevent the control rod 16 from sliding and rising, and increase the stability of the movement of the control rod 16.

[0036] See also Figure 4 The pressure regulating column 14 is internally fixedly connected with a limiting rod 20, and the outer circumferential surface of the limiting rod 20 is slidably plugged into the inside of the threaded tube 18 to limit the threaded tube 18, prevent the threaded tube 18 from rotating with the control rod 16, and increase the stability of the movement of the threaded tube 18.

[0037] See also Figure 1 , Figure 2 and Figure 3 The outer circumference of the control rod 16 is fixedly sleeved with a hand wheel 21, and the outer circumference of the hand wheel 21 is provided with equidistantly arranged anti-skid grooves, which enables the user to rotate the control rod 16 through the hand wheel 21 and prevents the hand from slipping, providing convenience for the user.

[0038] A pressure-adjustable spray gun in the present embodiment drives the threaded tube 18 to rise and fall by rotating the control rod 16, prompting the rubber plug 19 to rise and fall, and then controlling the opening size of the pressure regulating port 15, so as to achieve the effect of being able to adjust the spray pressure of the spray gun according to needs, improving the flexibility and practicality of the spray gun, and solving the problem that the chassis armor of the automobile needs to be sprayed with a spray gun, and the existing spray gun has no pressure regulating device, resulting in the inability to adjust the pressure of the spray gun according to needs during the spraying operation, affecting the spraying effect, and reducing the flexibility and practicality of the spray gun.

[0039] It should be noted that the outer circumferential surfaces of the ring 11 and the handle 13 are both provided with anti-slip structures, which are convenient for users to take, place and control, providing convenience for users.

[0040] The working principle of the above embodiment is:

[0041] When spraying operation is required, it is connected with external equipment through the air inlet pipe 2, and the storage box 6 filled with paint is installed on the feed pipe 4. Then, the handle 13 is held to align the nozzle 7 with the position where spraying is required. The sleeve ring 11 is moved to drive the sliding plug 8 to move through the connecting plate 12 and the sliding rod 9, so that the air inlet hole 3 is opened. Then, the external equipment inputs air into the main body 1 through the air inlet hole 3, and then the paint is sprayed to the position where spraying is required through the nozzle 7. During this period, the control rod 16 can be rotated to drive the rubber plug 19 to move through the threaded tube 18, so that the pressure regulating port 15 is opened. The air pressure during spraying is adjusted by adjusting the size of the opening of the pressure regulating port 15. During the spraying operation, the sleeve ring 11 can be loosened, and then the sliding plug 8 automatically moves back under the action of the spring 10, and the air inlet hole 3 is closed to stop spraying.

[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0043] Although the embodiments of the present application 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 application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A pressure-adjustable spray gun, comprising a body (1), characterized in that: An air intake pipe (2) is fixedly inserted into the interior of the body (1), an air intake hole (3) is provided in the interior of the air intake pipe (2), a feed pipe (4) is fixedly inserted into the interior of the body (1), a feed hole (5) is provided in the interior of the feed pipe (4), a threaded structure is provided on the outer circumferential surface of the feed pipe (4), a nozzle (7) is fixedly inserted into the interior of the body (1), a sliding plug (8) is slidably connected to the interior of the body (1), a sliding rod (9) is fixedly connected to one side of the sliding plug (8), and the sliding rod (9) The outer circumferential surface of the pressure regulating rod (14) is slidably connected to the interior of the main body (1), the interior of the main body (1) is fixedly connected with a pressure regulating column (14), the interior of the pressure regulating column (14) is provided with a pressure regulating port (15), the interior of the pressure regulating column (14) is rotatably plugged with a control rod (16), the outer circumferential surface of the control rod (16) is threadedly connected with a threaded tube (18), the outer circumferential surface of the threaded tube (18) is fixedly sleeved with a rubber plug (19), and the outer circumferential surface of the rubber plug (19) is slidably connected to the inner wall of the pressure regulating column (14).

2. A pressure-adjustable spray gun according to claim 1, characterized in that: The feed pipe (4) is threadably connected to the storage box (6) via a threaded structure.

3. A pressure-adjustable spray gun according to claim 1, characterized in that: A spring (10) is fixedly connected to one side of the sliding plug (8), and the other end of the spring (10) is fixedly connected to the inside of the body (1).

4. A pressure-adjustable spray gun according to claim 1, characterized in that: The outer circumferential surface of the body (1) is slidably sleeved with a collar (11), one side of the collar (11) is fixedly connected to two connecting plates (12), and the side of the connecting plate (12) away from the collar (11) is fixedly connected to the outer circumferential surface of the slide rod (9).

5. A pressure-adjustable spray gun according to claim 4, characterized in that: A handle (13) is fixedly sleeved on the outer circumferential surface of the body (1), and the outer surface of the connecting plate (12) is slidably plugged into the interior of the handle (13).

6. A pressure-adjustable spray gun according to claim 1, characterized in that: The outer circumferential surface of the control rod (16) is fixedly sleeved with a limit ring (17), and the outer circumferential surface of the limit ring (17) is rotatably connected to the inside of the pressure regulating column (14).

7. The pressure-adjustable spray gun according to claim 1, characterized in that: A limiting rod (20) is fixedly connected to the interior of the pressure regulating column (14), and an outer circumferential surface of the limiting rod (20) is slidably plugged into the interior of the threaded tube (18).

8. The pressure-adjustable spray gun according to claim 1, characterized in that: A hand wheel (21) is fixedly sleeved on the outer circumferential surface of the control rod (16), and the outer circumferential surface of the hand wheel (21) is provided with anti-slip grooves arranged at equal intervals.

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