Air brush with function of adjusting pressure of control rod

Abstract

The utility model relates to an airbrush with a function of adjusting the pressure of a control rod, which comprises a shell component, and a needle valve component, a reset sleeve seat, an elastic body, the control rod and a limiting piece which are arranged in the shell component, and the shell component comprises a handle body, a material cup, an air connecting head, a nozzle, a fixed screw sleeve and a rear shell. The utility model mainly aims to adjust the pressure of the control rod by adjusting the relative position of the reset sleeve seat, when the distance between the reset sleeve seat and the control rod is reduced, the compression amount of the elastic body is increased, and the pressure value required for pulling the control rod is increased, otherwise, when the distance between the reset sleeve seat and the control rod is increased, the compression amount of the elastic body is increased. And the pressure value required by pulling the control rod is reduced, so that the hand feeling required by a user is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of airbrush, in particular to an airbrush with a function of adjusting the pressure of a control rod. Background Art

[0002] Airbrushes are miniature spray guns commonly used in art work, and are commonly used in advertising spraying, handicraft spraying, human beauty and nail art, makeup painting and other fields. Existing airbrushes control the needle valve to move back and forth by toggling the control rod above the handle body, thereby controlling the amount of paint sprayed. However, traditional airbrushes still have shortcomings. For example, patent number CN202120269494.9 discloses an airbrush with easy control of the spraying amount. Since the rear shell is a closed shell, the pressure value required to press the control rod cannot be directly adjusted, which seriously affects the user's spraying feel. Utility Model Content

[0003] In order to overcome the shortcomings of the background technology, the technical solution adopted by the utility model is: a spray pen with a control rod pressure adjustment function, including a shell assembly, and a needle valve assembly, a reset sleeve, an elastomer, a control rod and a limit piece arranged in the shell assembly, the shell assembly includes a handle body, a material cup, an air connecting head, a nozzle, a fixed screw sleeve and a rear shell body, the sides of the handle body are respectively connected to the material cup and the air connecting head, one end of the handle body is connected to the nozzle, and the other end is connected to the rear shell body through the fixed screw sleeve, the needle valve assembly is slidably connected to the handle body, and the two ends of the needle valve assembly extend to the nozzle and the rear shell body respectively, the handle body is connected to a control rod for controlling the opening and closing of the needle valve assembly, the fixed screw sleeve is connected to the reset sleeve, an elastomer for resetting is provided between the needle valve assembly and the reset sleeve, and the relative distance between the control rod and the reset sleeve can be adjusted, and the rear shell body is connected to a limit piece for controlling the moving range of the needle valve assembly.

[0004] By adopting the above technical scheme, the material cup is used to hold the pigment, and the air connecting head is used to connect to an external air compressor. When the control rod is pulled backward, the needle valve assembly moves toward the direction of the limiter and leaves the nozzle, and the elastomer is compressed at the same time. At this time, the pigment is sprayed out from the nozzle under the action of the air pressure. When the control rod is released, the elastomer is reset and forces the needle valve assembly to abut and block the nozzle. The overall structural design is reasonable and easy to operate. The pressure of the control rod is adjusted by adjusting the relative position of the reset sleeve. When the distance between the reset sleeve and the control rod is reduced, the compression of the elastomer increases, and the pressure value required to pull the control rod is increased. Conversely, when the distance between the reset sleeve and the control rod is increased, the pressure value required to pull the control rod is reduced, thereby achieving the hand feel required by the user.

[0005] The utility model is further configured such that the fixed screw sleeve is provided with a first threaded portion located at both ends thereof, the handle body and the rear shell body are respectively connected to the two ends of the fixed screw sleeve through the first threaded portion, the reset sleeve is provided with a second threaded portion, and the reset sleeve is threadedly connected to the fixed screw sleeve through the second threaded portion.

[0006] By adopting the above technical solution, the handle body is connected to the rear shell body and the fixed screw sleeve at the same time through the fixed screw sleeve, and the pressure of the control rod can be adjusted by rotating the reset sleeve through the second threaded portion, and the overall operation is convenient.

[0007] The utility model is further configured that the fixing screw sleeve is provided with process holes distributed in a circumference.

[0008] By adopting the above technical solution, when maintaining the airbrush, the fixing screw sleeve is positioned through the process hole to facilitate the separate disassembly of the handle body or the rear shell body, thereby improving the maintenance efficiency.

[0009] The utility model is further configured as follows: the needle valve assembly includes a ejector pin, a needle valve sleeve and a fixing cap; the needle valve sleeve is a hollow rotating body; the ejector pin is sleeved on the needle valve sleeve; and one end of the needle valve sleeve is provided with a tapered portion, the tapered portion is threadedly connected with a fixing cap for clamping the ejector pin, and the side surface of the tapered portion is provided with grooves distributed in a circumference.

[0010] By adopting the above technical solution, during installation, the ejector pin passes through the needle valve sleeve so that it can abut against and block the nozzle, and is locked by the fixing cap. When the fixing cap is rotated, the fixing cap forces the conical portion to compress inward and lock the ejector pin. The locking structure is simple and convenient for mass production.

[0011] The utility model is further configured that the elastic body is a spring, the reset sleeve is provided with a sliding cavity, the needle valve sleeve is provided with a sliding convex seat adapted to the sliding cavity, and the spring is arranged between the sliding convex seat and the reset sleeve.

[0012] By adopting the above technical solution, the needle valve sleeve passes through the reset sleeve, and the sliding protrusion is slidably connected in the sliding cavity, so that the needle valve sleeve is always coaxially distributed on the reset sleeve, and the needle valve assembly moves smoothly and steadily.

[0013] The utility model is further configured such that the needle valve assembly also includes a clamping piece, the clamping piece is provided with an inner hole for placing the ejector pin, one end of the clamping piece is threadedly connected to the needle valve sleeve, and the other end is provided with a protrusion for clamping the control rod, and the control rod is provided with a clamping groove adapted to the clamping piece.

[0014] By adopting the above technical solution, the thickness of the clamping part is not greater than the width of the clamping slot of the control rod. During installation, the clamping part passes through the clamping slot and rotates 90°, so that the control rod is clamped to the protrusion and the needle valve sleeve. The overall structural design is reasonable and easy to install.

[0015] The utility model is further configured such that the limiting member is provided with a placement hole for placing an ejector pin and a third threaded portion for connecting to the rear shell; the limiting member is threadedly connected to the rear shell via the third threaded portion, and the tail of the ejector pin extends into the placement hole.

[0016] With the above technical solution, the distance between the limiter and the fixed cap determines the maximum amount of paint sprayed. The distance between the limiter and the fixed cap is adjusted by rotating the limiter, thereby controlling the amount of paint sprayed and assisting the user in controlling the paint.

[0017] The utility model is further configured that the rear housing is provided with an observation window for observing the moving state of the needle valve assembly.

[0018] By adopting the above technical solution, an observation window is opened on the side wall of the rear shell body, through which it is possible to visually see whether the needle valve assembly is stuck, and at the same time, the distance between the limiter and the fixing cap can be visually seen to facilitate adjustment of the limiter.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] 1. When the control rod is pulled backward, the needle valve assembly moves toward the direction of the limiter and leaves the nozzle. At this time, the pigment is sprayed out from the nozzle under the action of air pressure. When the control rod is released, the elastic body resets and forces the needle valve assembly to abut and block the nozzle. The overall structural design is reasonable and easy to operate.

[0021] 2. The pressure of the control rod is adjusted by adjusting the relative position of the reset sleeve. When the distance between the reset sleeve and the control rod is reduced, the compression of the elastic body increases, and the pressure value required to pull the control rod is increased. Conversely, when the distance between the reset sleeve and the control rod is increased, the pressure value required to pull the control rod is reduced, thereby achieving the hand feel required by the user.

[0022] The embodiments of the utility model are further described below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional diagram of the utility model;

[0024] Figure 2 It is a cross-sectional view of the utility model;

[0025] Figure 3 For the utility model Figure 2 A partial enlarged view of the A-direction view;

[0026] Figure 4 It is a three-dimensional diagram of the fixing screw sleeve of the utility model;

[0027] Figure 5 It is a three-dimensional diagram of the reset sleeve of the utility model;

[0028] Figure 6 This is a structural explosion diagram of the needle valve assembly of the utility model;

[0029] Wherein: 1 - housing assembly, 2 - needle valve assembly, 3 - reset sleeve, 4 - elastic body, 5 - control rod, 6 - limiter, 11 - handle, 12 - material cup, 13 - air connection head, 14 - nozzle, 15 - fixed screw sleeve, 16 - rear housing, 17 - first threaded part, 18 - second threaded part, 19 - process hole, 21 - ejector pin, 22 - needle valve sleeve, 23 - fixed cap, 24 - clamping part, 25 - tapered part, 26 - slot, 27 - sliding cavity, 28 - sliding convex seat, 29 - inner hole, 30 - convex block, 31 - clamping groove, 32 - placement hole, 33 - third threaded part, 34 - observation window; DETAILED DESCRIPTION

[0030] like Figure 1 , 2 As shown, this embodiment provides an airbrush with a function of adjusting the pressure of a control rod, comprising a shell assembly 1, and a needle valve assembly 2, a reset sleeve 3, an elastic body 4, a control rod 5 and a stopper 6 arranged in the shell assembly 1, the shell assembly 1 comprises a handle body 11, a material cup 12, an air connection head 13, a nozzle 14, a fixed screw sleeve 15 and a rear shell body 16, the sides of the handle body 11 are respectively connected to the material cup 12 and the air connection head 13, one end of the handle body 11 is connected to the nozzle 14, and the other end is connected to the nozzle 14 through the fixed screw sleeve 15 It is connected to a rear shell body 16, the needle valve assembly 2 is slidably connected to the handle body 11, and the two ends of the needle valve assembly 2 extend to the nozzle 14 and the rear shell body 16 respectively, the handle body 11 is connected to a control rod 5 for controlling the opening and closing of the needle valve assembly 2, the fixed screw sleeve 15 is connected to a reset sleeve 3, an elastic body 4 for resetting is provided between the needle valve assembly 2 and the reset sleeve 3, and the relative distance between the control rod 5 and the reset sleeve 3 can be adjusted, and the rear shell body 16 is connected to a limiter 6 for controlling the moving range of the needle valve assembly 2.

[0031] The working principle of the utility model is that the material cup 12 is used to hold the pigment, and the air connector 13 is used to connect to an external air compressor. When the control rod 5 is pulled backward, the needle valve assembly 2 moves toward the direction of the limiter 6 and leaves the nozzle 14, and the elastomer 4 is compressed at the same time. At this time, the pigment is sprayed out from the nozzle 14 under the action of the air pressure. When the control rod 5 is released, the elastomer 4 is reset and forces the needle valve assembly 2 to abut and block the nozzle 14. The overall structural design is reasonable and easy to operate. The pressure of the control rod 5 is adjusted by adjusting the relative position of the reset sleeve 3. When the distance between the reset sleeve 3 and the control rod 5 is reduced, the compression of the elastomer 4 is increased, and the pressure value required to pull the control rod 5 is increased. Conversely, when the distance between the reset sleeve 3 and the control rod 5 is increased, the pressure value required to pull the control rod 5 is reduced, thereby achieving the hand feel required by the user.

[0032] Combination Figure 4 , 5 As shown, in this embodiment, the fixed screw sleeve 15 is provided with a first threaded portion 17 located at both ends thereof, the handle body 11 and the rear shell body 16 are respectively connected to the two ends of the fixed screw sleeve 15 through the first threaded portion 17, the reset sleeve 3 is provided with a second threaded portion 18, and the reset sleeve 3 is threadedly connected to the fixed screw sleeve 15 through the second threaded portion 18, the handle body 11 is simultaneously connected to the rear shell body 16 and the fixed screw sleeve 15 through the fixed screw sleeve 15, and the pressure of the control rod 5 can be adjusted by rotating the reset sleeve 3 through the second threaded portion 18, and the overall operation is convenient.

[0033] In this embodiment, the fixing screw sleeve 15 is provided with process holes 19 distributed in a circumference. When maintaining the airbrush, the fixing screw sleeve 15 is positioned through the process holes 19 to facilitate the separate removal of the handle body 11 or the rear shell body 16, thereby improving maintenance efficiency.

[0034] Combination Figure 6 As shown, in this embodiment, the needle valve assembly 2 includes an ejector pin 21, a needle valve sleeve 22 and a fixing cap 23. The needle valve sleeve 22 is a hollow rotating body. The ejector pin 21 is sleeved on the needle valve sleeve 22, and one end of the needle valve sleeve 22 is provided with a tapered portion 25. The tapered portion 25 is threadedly connected with the fixing cap 23 for clamping the ejector pin 21, and the side of the tapered portion 25 is provided with circumferentially distributed grooves 26. During installation, when the ejector pin 21 passes through the needle valve sleeve 22 so that it can abut against and block the nozzle 14, it is locked by the fixing cap 23. When the fixing cap 23 is rotated, the fixing cap 23 forces the tapered portion 25 to compress inward and lock the ejector pin 21. The locking structure is simple and convenient for mass production.

[0035] Combination Figure 3 , 6 As shown, in this embodiment, the elastic body 4 is a spring, the reset sleeve 3 is provided with a sliding cavity 27, the needle valve sleeve 22 is provided with a sliding convex seat 28 adapted to the sliding cavity 27, the spring is arranged between the sliding convex seat 28 and the reset sleeve 3, the needle valve sleeve 22 passes through the reset sleeve 3, and the sliding convex seat 28 is slidably connected in the sliding cavity 27, so that the needle valve sleeve 22 is always coaxially distributed on the reset sleeve 3, so that the needle valve assembly 2 moves smoothly and steadily.

[0036] In this embodiment, the needle valve assembly 2 also includes a clamping member 24, which is provided with an inner hole 29 for placing the ejector pin 21. One end of the clamping member 24 is threadedly connected to the needle valve sleeve 22, and the other end is provided with a protrusion 30 for clamping the control rod 5. The control rod 5 is provided with a slot 31 adapted to the clamping member 24. The thickness of the clamping member 24 is not greater than the width of the slot 31 of the control rod 5. During installation, the clamping member 24 passes through the slot 31 and rotates 90°, so that the control rod 5 is clamped to the protrusion 30 and the needle valve sleeve 22. The overall structural design is reasonable and easy to install.

[0037] In this embodiment, the limit member 6 is provided with a placement hole 32 for placing the ejector pin 21, and a third threaded portion 33 for connecting to the rear shell 16. The limit member 6 is threadedly connected to the rear shell 16 through the third threaded portion 33. The tail of the ejector pin 21 extends into the placement hole 32. The distance between the limit member 6 and the fixing cap 23 determines the maximum amount of paint sprayed. The distance between the limit member 6 and the fixing cap 23 is adjusted by rotating the limit member 6, thereby controlling the amount of paint sprayed, and assisting the user in controlling the paint.

[0038] like Figure 1 As shown, in this embodiment, the rear shell 16 is provided with an observation window 34 for observing the moving state of the needle valve assembly 2. The side wall of the rear shell 16 is provided with an observation window 34, and the reset sleeve 3 can be adjusted through the observation window 34. Through the observation window 34, it can be intuitively seen whether the needle valve assembly 2 is stuck, and at the same time, the distance between the limit member 6 and the fixing cap 23 can be intuitively seen, so as to facilitate the adjustment of the limit member 6.

[0039] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A spray pen with a control rod pressure adjustment function, comprising a housing assembly (1), and a needle valve assembly (2), a reset sleeve (3), an elastic body (4), a control rod (5) and a stopper (6) arranged in the housing assembly (1), characterized in that: The housing assembly (1) comprises a handle (11), a material cup (12), an air connection head (13), a nozzle (14), a fixed screw sleeve (15) and a rear housing (16); the sides of the handle (11) are respectively connected to the material cup (12) and the air connection head (13); one end of the handle (11) is connected to the nozzle (14), and the other end is connected to the rear housing (16) via the fixed screw sleeve (15); the needle valve assembly (2) is slidably connected to the handle (11), and the two ends of the needle valve assembly (2) are respectively connected to the material cup (12) and the air connection head (13); The handle (11) is connected to a control rod (5) for controlling the opening and closing of the needle valve assembly (2); the fixing screw sleeve (15) is connected to a reset sleeve (3); an elastic body (4) for resetting is provided between the needle valve assembly (2) and the reset sleeve (3); the relative distance between the control rod (5) and the reset sleeve (3) is adjustable; and the rear housing (16) is connected to a limiter (6) for controlling the moving range of the needle valve assembly (2).

2. The airbrush with a control rod pressure adjustment function according to claim 1, characterized in that: The fixing screw sleeve (15) is provided with a first threaded portion (17) at both ends thereof, the handle body (11) and the rear shell body (16) are respectively connected to the two ends of the fixing screw sleeve (15) through the first threaded portion (17), the reset sleeve (3) is provided with a second threaded portion (18), and the reset sleeve (3) is threadedly connected to the fixing screw sleeve (15) through the second threaded portion (18).

3. The airbrush with a control rod pressure adjustment function according to claim 2, characterized in that: The fixing screw sleeve (15) is provided with process holes (19) distributed in a circumference.

4. The airbrush with a control rod pressure adjustment function according to claim 3, characterized in that: The needle valve assembly (2) comprises an ejector pin (21), a needle valve sleeve (22) and a fixing cap (23); the needle valve sleeve (22) is a hollow rotating body; the ejector pin (21) is sleeved on the needle valve sleeve (22); one end of the needle valve sleeve (22) is provided with a tapered portion (25); the tapered portion (25) is threadedly connected to the fixing cap (23) for clamping the ejector pin (21); and the side surface of the tapered portion (25) is provided with grooves (26) distributed in a circumferential manner.

5. The airbrush with a control rod pressure adjustment function according to claim 4, characterized in that: The elastic body (4) is a spring, the reset sleeve (3) is provided with a sliding cavity (27), the needle valve sleeve (22) is provided with a sliding convex seat (28) adapted to the sliding cavity (27), and the spring is arranged between the sliding convex seat (28) and the reset sleeve (3).

6. The airbrush with a control rod pressure adjustment function according to claim 5, characterized in that: The needle valve assembly (2) further comprises a clamping member (24), the clamping member (24) being provided with an inner hole (29) for accommodating the ejector pin (21), one end of the clamping member (24) being threadedly connected to the needle valve sleeve (22), and the other end being provided with a protrusion (30) for clamping the control rod (5), and the control rod (5) being provided with a clamping groove (31) matching the clamping member (24).

7. The airbrush with a control rod pressure adjustment function according to claim 1, characterized in that: The limiting member (6) is provided with a placement hole (32) for placing the ejector pin (21), and a third threaded portion (33) for connecting to the rear housing (16); the limiting member (6) is threadedly connected to the rear housing (16) via the third threaded portion (33); and the tail of the ejector pin (21) extends into the placement hole (32).

8. The airbrush with a control rod pressure adjustment function according to claim 7, characterized in that: The rear housing (16) is provided with an observation window (34) for observing the movement state of the needle valve assembly (2).

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