A spray pen

Abstract

The present disclosure relates to the technical field of drawing spray pens, and particularly relates to a spray pen, which comprises a shell and an adjusting mechanism, the adjusting mechanism comprises a first adjusting part and a second adjusting part, the first adjusting part is arranged in the shell, the second adjusting part is arranged at least partially in the shell, one end of the first adjusting part is connected with the second adjusting part, the other end of the first adjusting part is provided with an arc structure, the arc structure is connected with a spray needle, the second adjusting part pushes the first adjusting part to move by adjusting the second adjusting part, the first adjusting part drives the spray needle to move, the spray needle is provided with a second elastic part, the second elastic part is used for resetting the spray needle, the shell is provided with a first elastic part, one end of the first elastic part is in contact with the second adjusting part, and the first elastic part is used for resetting the second adjusting part in a pressing state.

Description

Technical Field

[0001] The present disclosure relates to the technical field of painting airbrushes, and in particular to an airbrush. Background Art

[0002] An airbrush is a tool that looks like an oversized fountain pen, with a container that holds up to one ounce of liquid paint and a thin tube connected to a compressed air and carbonized coal gas source. With the rapid development of science and technology, the uses of airbrushes have become increasingly diverse and specialized, now found in all areas related to the beautification of people's lives. Works using airbrushes are often seen in art galleries, commercial illustrations, cover designs, advertising photography, calendars, paintings, and architectural drawings. Airbrush painting has become a key expressive technique in artistic painting. Because airbrushes can evenly apply paint to a model's surface, they are also widely used for coloring models. Airbrushes can also be used for painting cakes, creating camouflage patterns, and many other applications.

[0003] The Chinese patent application number 202221156348.6 discloses an adjustable and replaceable airbrush structure, including a shell, a switch button is provided on one side of the shell, a push switch is provided at a position corresponding to the switch button inside the shell, a push handle is provided on one side of the switch button, and a nozzle assembly is installed on the top of the shell. Press the switch button deeply, and the push handle on the switch button pushes the first spring, which pushes the push plate under the pressure of the first spring. The push plate drives the spray needle to move in the adjustment slot on the adjustment cap. The adjustment cap is fixed by the force of the second spring. The force of pressing the switch button increases, and the amount of paint output increases immediately. However, when pressing the switch button of this adjustable and replaceable airbrush, if the force is not well controlled, it is easy to cause the push handle to get stuck or even break, affecting the normal use of the airbrush. Summary of the Invention

[0004] In view of the deficiencies or problems existing in the prior art, the present disclosure provides an airbrush, which has a simple structure, good sealing performance, and is convenient to switch between a working state and a closed state.

[0005] The technical solution adopted by the present disclosure to solve the above-mentioned technical problems is: a spray pen, including a shell and an adjustment mechanism, the adjustment mechanism including a first adjustment member and a second adjustment member, the first adjustment member is arranged in the shell, the second adjustment member is at least partially arranged in the shell, one end of the first adjustment member is connected to the second adjustment member, the other end of the first adjustment member is provided with an arch structure, the arch structure is connected to the spray needle, by adjusting the second adjustment member, the second adjustment member pushes the first adjustment member to move, and the first adjustment member drives the spray needle to move, the spray needle is provided with a second elastic member, the second elastic member is used to reset the spray needle, the first elastic member is provided in the shell, one end of the first elastic member is in contact with the second adjustment member, and the first elastic member is used to reset the second adjustment member in a pressed state.

[0006] As a preferred embodiment, a positioning groove is provided in the shell, the positioning groove is provided on the inner wall of the shell, the first elastic member is at least partially provided in the positioning groove, and the positioning groove is used to limit the first elastic member; the second adjusting member is a pressing member.

[0007] As a preferred embodiment, the positioning groove is integrally formed with the housing; and the first elastic member is a spring.

[0008] As a preferred embodiment, the first adjusting member includes a first part and a second part, the first part is "U"-shaped, the arched structure is the second part, and the open end of the "U"-shaped part is connected to the first adjusting member.

[0009] As a preferred embodiment, the second part is provided with a through hole, through which the spray needle passes, and a limiting member is provided on the spray needle. A nozzle seat is also provided in the shell, and an arch structure is provided between the nozzle seat and the limiting member. The open end of the arch structure contacts one end of the nozzle seat, and the arc surface of the arch structure contacts the lower surface of the limiting member.

[0010] As a preferred embodiment, the second elastic member at least partially passes through the upper end of the spray needle, one end of the second elastic member contacts the upper surface of the limit member, and the second adjusting member is pressed. The first adjusting member moves upward under the push of the second adjusting member, and the first adjusting member pushes the spray needle to move upward, and the second elastic member is in a compressed state; when the second adjusting member is released, the first adjusting member moves downward to its original position along with the second adjusting member, and the spray needle is reset under the action of the second adjusting member.

[0011] As a preferred embodiment, the second elastic member is a spring, the first adjusting member further includes a third part, the first part is connected to the second part through the third part, and the third part is provided with a reinforcing rib.

[0012] As a preferred embodiment, a first channel is provided in the nozzle holder, and the spray needle is at least partially provided in the first channel. A second channel and a third channel are also provided in the nozzle holder, one end of the second channel is connected to the first channel, and one end of the third channel is connected to the second channel. The pigment passes through the third channel through the second channel and then enters the first channel. A first seal and a second seal are provided on the spray needle, and the first seal and the second seal move with the movement of the spray needle. When the second adjusting member is pressed, the spray needle drives the first seal and the second seal to move upward. At this time, the first seal and the second seal are both above the connection point between the second channel and the first channel; when the second adjusting member is released, the first seal and the second seal move downward with the spray needle. At this time, the first seal is below the connection point between the second channel and the first channel, and the second seal is above the connection point between the second channel and the first channel.

[0013] As a preferred embodiment, a first slot and a second slot are provided on the spray needle, the first slot is provided below the second slot, the first seal is provided in the first slot, and the second seal is provided in the second slot; the first seal and the second seal are both O-rings.

[0014] As a preferred embodiment, a third seal is provided at the end of the second channel away from the first channel. The third seal is provided at the port of the second channel and is used to seal the port of the second channel away from the first channel.

[0015] As a preferred embodiment, the shell is detachably connected to a connecting seat, one end of the connecting seat is connected to the nozzle seat, the other end of the connecting seat is connected to the feeding assembly, the end of the nozzle seat away from the connecting seat is detachably connected to the nozzle head, and one end of the spray needle is arranged in the nozzle head.

[0016] As a preferred embodiment, the feeding assembly is provided with a working hole for pigment to flow out, and the connecting seat is provided with a discharge channel, one end of the discharge channel is connected to the working hole, and the other end of the discharge channel is connected to the third channel.

[0017] As a preferred embodiment, the connecting seat includes a first connecting part, a second connecting part and a third connecting part, the second connecting part is a cylindrical structure with an opening at the top, the first connecting part is arranged on the outer peripheral wall of the second connecting part, the first connecting part is a trumpet-shaped structure, the first connecting part is connected to the shell, the second connecting part is connected to the feeding assembly, the third connecting part is arranged at the bottom of the second connecting part, the third connecting part extends from the bottom of the second connecting part toward the direction of the nozzle seat, the discharge channel extends from the bottom of the second connecting part to the third connecting part, and the third connecting part contacts one end of the nozzle seat.

[0018] As a preferred embodiment, the lower surface of the bottom of the second connecting part is constructed with an annular protrusion, which forms a limiting cavity with the lower surface of the bottom of the second connecting part. One end of the second elastic member is located in the limiting cavity, and the limiting cavity is used to limit the second elastic member.

[0019] As a preferred embodiment, the nozzle seat is provided with an internal thread, and the nozzle head is provided with an external thread. The internal thread and the external thread cooperate to screw the nozzle seat and the nozzle head together. A connecting sleeve is provided in the nozzle head, and one end of the spray needle is provided in the connecting sleeve.

[0020] As a preferred embodiment, the connecting sleeve includes an annular member and a hollow cylindrical member, the annular member is sleeved on the upper part of the cylindrical member, one end of the spray needle is arranged in the cylindrical member, the upper end of the cylindrical member is provided with a first opening, and the lower end of the cylindrical member is provided with a second opening, the first opening and the second opening are both circular, the aperture of the first opening is larger than the aperture of the second opening, a support member is provided in the nozzle head, and the lower surface of the annular member is in contact with one end of the support member.

[0021] As a preferred embodiment, a fourth channel and a fifth channel are also provided on the nozzle holder, an air pump is provided in the shell, the air pump is connected to the air inlet channel, one end of the air inlet channel is connected to the fourth channel, and one end of the fifth channel is connected to the fourth channel. The air flow enters the fourth channel from the air inlet channel, then enters the fifth channel from the fourth channel, and then enters the nozzle head from the fifth channel.

[0022] As a preferred embodiment, a micro switch is also provided in the shell. When the second adjusting member is pressed, one end of the second adjusting member touches the micro switch, the micro switch is turned on, and the air pump starts working; when the second adjusting member is released, the connection between the second adjusting member and the micro switch is disconnected, the micro switch is closed, and the air pump stops working.

[0023] Compared with existing products, since the other end of the first adjusting member is provided with an arch structure, and the arch structure is connected to the spray needle, by adjusting the second adjusting member, the second adjusting member pushes the first adjusting member to move, and the first adjusting member drives the spray needle to move, so that the spray pen can work normally. The setting of the arch structure makes it more labor-saving when pressing the second adjusting member. At the same time, the arch structure can also effectively prevent the first adjusting member from getting stuck when pressing the second adjusting member, thereby reducing the frequency of spray pen failures; since the second elastic member is provided on the spray needle, the spray needle can be well reset after being pressed down. Since the first elastic member is provided in the shell, one end of the first elastic member contacts the second adjusting member, and the first elastic member is used to reset the second adjusting member in the pressed state, thereby more accurately realizing the linkage between the second adjusting member and the spray needle. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present application will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will appreciate that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the present application. In addition, unless otherwise specified, the drawings are merely schematic representations of the composition or structure of the described objects and may contain exaggerated representations. The drawings are not necessarily drawn to scale.

[0025] Figure 1 It is one of the structural schematic diagrams of the airbrush disclosed herein;

[0026] Figure 2 This is the second structural diagram of the airbrush disclosed herein;

[0027] Figure 3 is a cross-sectional view of the disclosed airbrush;

[0028] Figure 4 This disclosure Figure 3 A partial enlarged view of point A in the middle;

[0029] Figure 5 This is one of the structural diagrams of the connecting seat disclosed in the present invention;

[0030] Figure 6 This is the second structural diagram of the connecting socket disclosed in the present invention;

[0031] Figure 7 This is the third structural diagram of the connecting seat disclosed in the present invention;

[0032] Figure 8 This is one of the structural diagrams of the first adjusting member disclosed in the present invention;

[0033] Figure 9 This is the second structural diagram of the first adjusting member disclosed in the present invention;

[0034] Figure 10 is a schematic structural diagram of the nozzle head disclosed herein;

[0035] Figure 11 It is a structural schematic diagram of the connecting sleeve disclosed in the present invention;

[0036] Figure 12 It is a schematic structural diagram of the spray needle of the present invention arranged on the nozzle head;

[0037] Figure 13 This is one of the structural schematic diagrams of the second adjusting member disclosed in the present invention;

[0038] Figure 14 This is the second structural schematic diagram of the second adjusting member disclosed in the present invention.

[0039] Description of reference numerals:

[0040] 1. Shell; 2. First adjusting member; 21. First part; 22. Second part; 23. Third part; 24. Through hole; 3. Second adjusting member; 31. Pressing part; 32. First push rod; 33. Second push rod; 4. Spray needle; 41. Limiting member; 42. First slot; 43. Second slot; 5. Connecting seat; 51. First connecting part; 52. Second connecting part; 53. Third connecting part; 54. Annular protrusion; 6. Nozzle seat; 7. Nozzle head; 71. Support member; 8. Air pump; 9. First elastic member; 10. Second elastic member; 11. Connecting sleeve; 12. Second channel; 13. Third channel; 14. Fourth channel; 15. Fifth channel; 16. Inlet channel; 17. Discharge channel; 20. Feeding assembly; 100. First sealing member; 200. Second sealing member; 300. Third sealing member; 400. First opening; 500. Second opening DETAILED DESCRIPTION

[0041] In order to enable those skilled in the art to better understand the technical solutions of the present disclosure, the present disclosure is described in detail, clearly, and completely in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present disclosure and are not intended to limit the present disclosure.

[0042] Those skilled in the art should understand that, in the disclosure of the present invention, the orientation or positional relationship indicated by terms such as "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", and "outside" are based on the orientation or positional relationship shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0043] Please see Figure 1 and Figure 3As shown, one embodiment of the present disclosure discloses an adjustment mechanism, comprising a housing 1 and an adjustment mechanism. The adjustment mechanism includes a first adjustment member 2 and a second adjustment member 3. The first adjustment member 2 is disposed in the housing 1, and the second adjustment member 3 is at least partially disposed in the housing 1. One end of the first adjustment member 2 is connected to the second adjustment member 3. The other end of the first adjustment member 2 is provided with an arch structure, and the arch structure is connected to the spray needle 4. By adjusting the second adjustment member 3, the second adjustment member 3 pushes the first adjustment member 2 to move, and the first adjustment member 2 drives the spray needle 4 to move, thereby enabling the normal operation of the airbrush. The arch structure makes it easier to press the second adjustment member 3. At the same time, the arch structure can effectively prevent the first adjustment member 2 from getting stuck when pressing the second adjustment member 3, thereby reducing the frequency of airbrush malfunctions. The spray needle 4 is provided with a second elastic member 10, which is used to reset the spray needle 4. A first elastic member 9 is provided in the housing 1. One end of the first elastic member 9 contacts the second adjustment member 3 and is used to reset the second adjustment member 3 when it is pressed.

[0044] Please also refer to Figures 13 and 14 As shown, a positioning groove is provided in the housing 1, and the positioning groove is provided on the inner wall of the housing 1. The first elastic member 9 is at least partially provided in the positioning groove. The positioning groove is used to limit the first elastic member 9, and the first elastic member 9 is used to reset the second adjustment member 3 in the pressed state. Specifically, the second adjustment member 3 is a pressing member, and the second adjustment member 3 includes a pressing portion 31 and a pushing portion. One end of the pushing portion is provided on the pressing portion 31, and the pushing portion is provided in the housing 1. The end of the pressing portion 31 away from the pushing portion is provided outside the housing 1, and the second adjustment member 3 is adjusted by pressing the pressing portion 31. The positioning groove is provided on the inner wall of the housing 1, and the positioning groove is integrally formed with the housing 1. Preferably, the first elastic member 9 is a spring, and the pressing portion 31 is a button.

[0045] like Figure 8 、 Figure 9As shown, the first adjusting member 2 includes a first portion 21 and a second portion 22. The first portion 21 is U-shaped, and the second portion 22 is an arched structure. The open end of the U-shaped structure is connected to the first adjusting member 2. The first adjusting member 2 also includes a third portion 23, which is connected to the second portion 22 via the third portion 23. The third portion 23 is provided with reinforcing ribs. The arched structure makes it easier for the second adjusting member 3 to drive the first adjusting member 2. The reinforcing ribs provided on the third portion 23 strengthen the strength of the first adjusting member 2, making it less prone to breakage. The third portion 23 increases the torque of the first adjusting member 2, making it easier to press the second adjusting member 3. The driving portion includes two first driving rods 32 and a second driving rod 33. The two first driving rods 32 respectively contact the open ends of the U-shaped structure of the first adjusting member 2. When the second adjusting member 3 is pressed, the second driving rod 33 contacts the microswitch. It should be noted that when the second adjusting member 3 is pressed, one end of the first adjusting member 2 moves upward and the air pump 8 starts to operate.

[0046] For further information, see Figure 3 、 Figure 4 and Figure 12 As shown, the second portion 22 is provided with a through hole 24, through which the spray needle 4 passes. A limit member 41 is provided on the spray needle 4. A nozzle holder 6 is also provided in the housing 1. An arched structure is provided between the nozzle holder 6 and the limit member 41. The open end of the arched structure contacts one end of the nozzle holder 6, and the arc surface of the arched structure contacts the lower surface of the limit member 41. When the second adjusting member 3 is pressed, one end of the first adjusting member 2 moves upward with the second adjusting member 3. The other end of the first adjusting member 2 uses the opening outside the arched structure as a fulcrum. The arc surface of the arched structure pushes the limit member 41 upward, thereby causing the spray needle 4 to move upward.

[0047] Furthermore, the second elastic member 10 at least partially passes through the upper end of the spray needle 4. One end of the second elastic member 10 contacts the upper surface of the stopper 41, pressing the second adjusting member 3. The first adjusting member 2 moves upward under the push of the second adjusting member 3, and the first adjusting member 2 pushes the spray needle 4 upward, and the second elastic member 10 is in a compressed state. When the second adjusting member 3 is released, the first adjusting member 2 moves downward with the second adjusting member 3 to its original position, and the spray needle 4 is reset under the action of the second adjusting member 3. Preferably, the second elastic member 10 is a spring.

[0048] Please continue to see Figure 3 、 Figure 4As shown, in one embodiment of the present disclosure, a first channel is provided in the nozzle holder 6, and the spray needle 4 is at least partially provided in the first channel. A second channel 12 and a third channel 13 are further provided in the nozzle holder 6. One end of the second channel 12 is connected to the first channel, and one end of the third channel 13 is connected to the second channel 12. The pigment passes from the third channel 13 through the second channel 12 and then enters the first channel. A first seal 100 and a second seal 200 are provided on the spray needle 4. The first seal 100 and the second seal 200 move with the movement of the spray needle 4. When the second adjustment member 3 is pressed, the spray needle 4 drives the first seal 100 and the second seal 200 to move upward. At this time, the first seal 100 and the second seal 200 are both above the connection between the second channel 12 and the first channel; when the second adjustment member 3 is released, the first seal 100 and the second seal 200 move downward with the spray needle 4. At this time, the first seal 100 is below the connection between the second channel 12 and the first channel, and the second seal 200 is above the connection between the second channel 12 and the first channel. In this way, when the second adjusting member 3 is loosened, the first sealing member 100 blocks the bottom of the first channel to prevent the paint from flowing out from the lower end of the first channel when the airbrush is not working, and the second sealing member 200 blocks the top of the first channel to prevent the paint from flowing out from the upper end of the first channel and contaminating the first adjusting member 2, the second elastic member 10 and other components in the shell 1.

[0049] Specifically, the length of the spray needle 4 is greater than that of the first channel. To make the nozzle holder 6 compact and facilitate smoother pigment flow, the third channel 13 is arranged parallel to the first channel. The second channel 12 and the third channel 13 are both arranged to the left of the first channel. The second channel 12 and the third channel 13 are arranged perpendicularly. The arched structure of the first regulating member 2 is arranged at the upper opening of the first channel. A third seal 300 is provided at the end of the second channel 12 away from the first channel. The third seal 300 is arranged at the end of the second channel 12. The third seal 300 is used to seal the end of the second channel 12 away from the first channel to prevent pigment from entering the housing 1 from this end, causing pigment waste and contamination and damage to components. Preferably, the third seal 300 is a sealing plug.

[0050] Please also refer to Figure 12 As shown, in order to prevent the first seal 100 and the second seal 200 from slipping off the spray needle 4, a first groove 42 and a second groove 43 are provided on the spray needle 4. The first groove 42 is provided below the second groove 43. The first seal 100 is provided in the first groove 42, and the second seal 200 is provided in the second groove 43. The first seal 100 and the second seal 200 are both O-rings. In this way, the first seal 100 and the second seal 200 are difficult to fall off from the spray needle 4, thereby achieving a good sealing effect.

[0051] like Figures 1 to 3 As shown, in one embodiment of the present disclosure, a connecting seat 5 is detachably connected to the shell 1, one end of the connecting seat 5 is connected to the nozzle seat 6, and the other end of the connecting seat 5 is connected to the feeding assembly 20. The end of the nozzle seat 6 away from the connecting seat 5 is detachably connected to the nozzle head 7, and one end of the spray needle 4 is arranged in the nozzle head 7. Specifically, the connecting seat 5 is snap-fitted or plug-fitted or connected to the shell 1 by a thread. The feeding assembly 20 includes but is not limited to an ink cartridge or a pen. There is no restriction on the specific type of the feeding assembly 20, as long as it can provide pigment. The feeding assembly 20 is provided with a working hole for the pigment to flow out, and a discharge channel 17 is provided on the connecting seat 5. One end of the discharge channel 17 is connected to the working hole, and the other end of the discharge channel 17 is connected to the third channel 13. In order to make the connection between the feeding assembly 20 and the connecting seat 5 more reliable and better sealed, the feeding assembly 20 is connected to the connecting seat 5 by a thread to prevent the pigment from leaking from the connection between the feeding assembly 20 and the connecting seat 5.

[0052] In particular, such as Figures 5 to 7 As shown, the connecting seat 5 includes a first connecting part 51, a second connecting part 52 and a third connecting part 53. The second connecting part 52 is a cylindrical structure with an opening at the top. The first connecting part 51 is arranged on the outer peripheral wall of the second connecting part 52. The first connecting part 51 is a trumpet-shaped structure. The edge of the trumpet-shaped structure is clamped with the shell 1. The second connecting part 52 is connected to the feeding assembly 20 by a thread. The third connecting part 53 is arranged at the bottom of the second connecting part 52. The third connecting part 53 extends from the bottom of the second connecting part 52 toward the nozzle seat 6. The discharge channel 17 extends from the bottom of the second connecting part 52 to the third connecting part 53. The third connecting part 53 contacts one end of the nozzle seat 6.

[0053] It should be noted that an annular protrusion 54 is constructed on the lower surface of the bottom of the second connecting part 52, and the annular protrusion 54 and the lower surface of the bottom of the second connecting part 52 form a limiting cavity. One end of the second elastic member 10 is located in the limiting cavity and contacts the lower surface of the bottom of the second connecting part 52, and the other end of the second elastic member 10 contacts the upper surface of the limiting member 41. The limiting cavity is used to limit the second elastic member 10 to avoid the second elastic member 10 from shifting, deflecting and other adverse conditions during the compression process, which affects the normal operation and use of the airbrush.

[0054] In order to make the connection between the nozzle seat 6 and the nozzle head 7 more sealed and avoid leakage of pigment, the nozzle seat 6 is provided with an internal thread and the nozzle head 7 is provided with an external thread. The internal thread and the external thread cooperate to screw the nozzle seat 6 and the nozzle head 7 together. A connecting sleeve 11 is provided in the nozzle head 7, and one end of the spray needle 4 is provided in the connecting sleeve 11.

[0055] Further, such as Figure 11As shown, the connecting sleeve 11 includes an annular member and a hollow cylindrical member. The annular member is sleeved onto the upper portion of the cylindrical member. One end of the spray needle 4 is disposed within the cylindrical member. The upper end of the cylindrical member is provided with a first opening 400, and the lower end of the cylindrical member is provided with a second opening 500. Both the first opening 400 and the second opening 500 are circular. The aperture of the first opening 400 is larger than that of the second opening 500. The plane where the bottom of the first channel lies contacts the plane where the top of the first opening 400 lies. Specifically, the lower end of the cylindrical member is in the shape of an inverted frustum, while the lower end of the spray needle 4 is conical. When the second adjusting member 3 is not pressed, the lower end of the spray needle 4 is located within the second opening 500, blocking it.

[0056] For further information, see Figure 10 As shown, a support member 71 is provided within the nozzle head 7, and the lower surface of the annular member contacts one end of the support member 71. The support member 71 here comprises three evenly spaced bumps or ridges, each equidistant in the horizontal direction, to ensure a more uniform force on the annular member. The lower end of the support member 71 is connected to the nozzle head 7, and the upper end of the support member 71 contacts the lower surface of the annular member. The nozzle head 7 and the support member 71 are integrally formed. After the connecting sleeve 11 is connected to the support member 71, a gap is left between the lower end of the connecting sleeve 11 and the inner circumferential wall of the nozzle head 7 to facilitate the passage of airflow.

[0057] For further information, please continue to see Figures 2 to 4 As shown, the nozzle holder 6 is also provided with a fourth channel 14 and a fifth channel 15. An air pump 8 is disposed within the housing 1, connected to an air inlet channel 16. One end of the air inlet channel 16 is connected to the fourth channel 14, and one end of the fifth channel 15 is connected to the fourth channel 14. Specifically, the fourth and fifth channels 14, 15 are disposed to the right of the first channel, and the second adjustment member 3 is disposed to the right of the nozzle holder 6. This arrangement facilitates the arrangement of components within the housing 1. To ensure smooth airflow into the nozzle head 7, at least a portion of the air inlet channel 16 is tilted downward, with the fourth and fifth channels 14, 15 positioned no higher than the air inlet channel 16. To further facilitate smooth airflow into the nozzle head 7, the fifth channel 15 is disposed parallel to the first channel. Airflow enters the fourth channel 14 from the air inlet channel 16, then enters the fifth channel 15 from the fourth channel 14, and finally enters the gap between the lower end of the connecting sleeve 11 and the inner circumferential wall of the nozzle head 7 from the fifth channel 15. A micro switch is also provided in the housing 1. When the second adjusting member 3 is pressed, one end of the second adjusting member 3 touches the micro switch, the micro switch is turned on, and the air pump 8 starts working; when the second adjusting member 3 is released, the connection between the second adjusting member 3 and the micro switch is disconnected, the micro switch is turned off, and the air pump 8 stops working.

[0058] The housing 1 includes a first shell and a second shell, which are snap-connected. Specifically, two first snap-connecting slots and a second snap-connecting slot are provided in the first shell, and the two first snap-connecting slots are distributed vertically. The first adjustment member 2 is provided between the two first snap-connecting slots, and the second snap-connecting slot is provided at one end away from the first snap-connecting slots. This arrangement facilitates the stability of the internal structure of the airbrush. Two first snap-connecting posts and a second snap-connecting post are provided at corresponding positions of the second shell. Several third snap-connecting slots are provided at the edge of the first shell, and several buckles are provided at corresponding positions of the second shell. The first snap-connecting slot cooperates with the first snap-connecting post, the second snap-connecting slot cooperates with the second snap-connecting post, and the third snap-connecting slot cooperates with the buckle to snap the first shell and the second shell together.

[0059] It should be noted that when using the airbrush, the second adjusting member 3 is pressed, the first elastic member 9 is compressed, and the air pump 8 starts working. The second adjusting member 3 pushes one end of the first adjusting member 2 to move upward, so that the other end of the first adjusting member 2 uses the opening on the outside of the arch structure as a fulcrum. The arc surface of the arch structure pushes the limit member 41 upward, so that the spray needle 4 moves upward. At the same time, under the extrusion of the limit member 41, the second elastic member 10 is compressed. The upward movement of the spray needle 4 drives the first sealing member 100 to move upward, so that the first sealing member 100 moves upward to above the connection point between the second channel 12 and the first channel. The paint in the second channel 12 flows into the first channel and flows downward along the first channel into the connecting sleeve 11, and then flows to the second opening 500 of the connecting sleeve 11. The airflow enters the gap between the lower end of the connecting sleeve 11 and the inner peripheral wall of the nozzle head 7 from the fifth channel 15. The airflow forms a negative pressure here to bring out the paint at the second opening 500. Stop pressing the second adjusting member 3, the second adjusting member 3 is reset under the action of the first elastic member 9, the air pump 8 stops working and the spray needle 4 is reset under the action of the second elastic member 10. At this time, the first sealing member 100 is below the connection point between the second channel 12 and the first channel, and the pigment will no longer continue to flow out of the first channel.

[0060] The present application has been described in detail above. Specific examples have been used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is intended only to facilitate understanding of the present application and its core concepts. It should be noted that, without departing from the principles of the present application, a number of improvements and modifications may be made to the present application by a person skilled in the art, and such improvements and modifications shall fall within the scope of protection of the claims of the present application.

Claims

1. A spray pen, characterized in that The invention comprises a shell (1) and an adjusting mechanism, wherein the adjusting mechanism comprises a first adjusting member (2) and a second adjusting member (3), wherein the first adjusting member (2) is arranged in the shell (1), and the second adjusting member (3) is at least partially arranged in the shell (1), one end of the first adjusting member (2) is connected to the second adjusting member (3), and the other end of the first adjusting member (2) is provided with an arch structure, and the arch structure is connected to a spray needle (4), the second adjusting member (3) pushes the first adjusting member (2) to move, and the first adjusting member (2) drives the spray needle (4) to move, and the spray needle (4) is provided with a second elastic member (10), and the shell (1) is provided with a first elastic member (9), and the first One end of the elastic member (9) contacts the second regulating member (3); the second regulating member (3) includes a pressing portion (31) and a pushing portion, one end of the pushing portion is arranged on the pressing portion (31); the pushing portion includes two first pushing rods (32) and a second pushing rod (33), the two first pushing rods (32) respectively contact the "U"-shaped opening ends of the first regulating member (2), press the second regulating member (3), the second pushing rod (33) contacts the micro switch, the micro switch is turned on, the air pump (8) starts to work, and the air flow enters the gap between the lower end of the connecting sleeve (11) and the inner peripheral wall of the nozzle head (7); the first regulating member (2) includes a first part (21) and a second part (2 2), the first part (21) is "U"-shaped, and the arched structure is the second part (22); the second part (22) is provided with a through hole (24), the spray needle (4) passes through the through hole (24), a limiting member (41) is provided on the spray needle (4), the arched structure is provided between the nozzle seat (6) and the limiting member (41), and a nozzle seat (6) is also provided in the shell (1); the nozzle seat (6) is detachably connected to the nozzle head (7); a connecting sleeve (11) is provided in the nozzle head (7), and one end of the spray needle (4) is provided in the connecting sleeve (11); when the second adjusting member (3) is not pressed, the lower end of the spray needle (4) is located in the second opening (500) at one end of the connecting sleeve (11) and blocks the second opening (500); a first channel and a second channel (12) are provided in the nozzle holder (6), the spray needle (4) is at least partially provided in the first channel, and one end of the second channel (12) is connected to the first channel; a first sealing member (100) is provided on the spray needle (4), and the first sealing member (100) blocks the lower part of the first channel; the upward movement of the spray needle (4) drives the first sealing member (100) to move upward, so that the first sealing member (100) moves upward to above the connection point between the second channel (12) and the first channel, and the pigment in the second channel (12) flows into the first channel and flows downward along the first channel to the second opening (500) of the connecting sleeve (11).

2. The airbrush according to claim 1, wherein A positioning groove is provided in the housing (1), the positioning groove being provided on the inner wall of the housing (1), the first elastic member (9) being at least partially provided in the positioning groove, and the positioning groove being used to limit the first elastic member (9); the second adjusting member (3) is a pressing member; and the connecting sleeve (11) comprises an annular member and a hollow columnar member.

3. The airbrush according to claim 2, characterized in that The open end of the arch structure contacts one end of the nozzle seat (6), and the arc surface of the arch structure contacts the lower surface of the limiting member (41).

4. The airbrush according to claim 3, characterized in that The second elastic member (10) at least partially passes through the upper end of the spray needle (4), one end of the second elastic member (10) contacts the upper surface of the limit member (41), pressing the second adjusting member (3), and the first adjusting member (2) moves upward under the push of the second adjusting member (3). The first adjusting member (2) pushes the spray needle (4) to move upward, and the second elastic member (10) is in a compressed state; the second adjusting member (3) is released, and the first adjusting member (2) moves downward to the original position along with the second adjusting member (3), and the spray needle (4) is reset under the action of the second adjusting member (3).

5. The airbrush according to claim 2 or 4, characterized in that The second elastic member (10) is a spring, and the first adjusting member (2) further includes a third part (23). The first part (21) is connected to the second part (22) via the third part (23), and the third part (23) is provided with a reinforcing rib.

6. The airbrush according to claim 3, wherein: The nozzle holder (6) is further provided with a third channel (13), one end of which is connected to the second channel (12), and the pigment passes through the second channel (12) from the third channel (13) and then enters the first channel. The spray needle (4) is provided with a second sealing member (200), and the first sealing member (100) and the second sealing member (200) move with the movement of the spray needle (4). When the second adjusting member (3) is pressed, the spray needle (4) drives the first sealing member (100) and the second sealing member (200) to move upward. At this time, the first sealing member (100) and the second sealing member (200) are both above the connection point between the second channel (12) and the first channel; when the second adjusting member (3) is released, the first sealing member (100) and the second sealing member (200) move downward with the spray needle (4). At this time, the first sealing member (100) is below the connection point between the second channel (12) and the first channel, and the second sealing member (200) is above the connection point between the second channel (12) and the first channel.

7. The airbrush according to claim 6, wherein: The spray needle (4) is provided with a first card slot (42) and a second card slot (43), the first card slot (42) is provided below the second card slot (43), the first sealing member (100) is provided in the first card slot (42), and the second sealing member (200) is provided in the second card slot (43).

8. The airbrush according to claim 6, wherein: A third sealing member (300) is provided at the end of the second channel (12) away from the first channel. The third sealing member (300) is provided at the port of the second channel (12). The third sealing member (300) is used to seal the port of the second channel (12) away from the first channel.

9. The airbrush according to claim 3, wherein: The housing (1) is detachably connected to a connecting seat (5), one end of the connecting seat (5) is connected to a nozzle seat (6), and the other end of the connecting seat (5) is connected to a feeding assembly (20), a nozzle head (7) is arranged at an end of the nozzle seat (6) away from the connecting seat (5), and one end of the spray needle (4) is arranged in the nozzle head (7); the feeding assembly (20) is provided with a working hole for the outflow of pigment, and a discharge channel (17) is provided on the connecting seat (5), one end of the discharge channel (17) is connected to the working hole, and the other end of the discharge channel (17) is connected to the third channel (13).

10. The airbrush according to claim 9, wherein: The connecting seat (5) includes a first connecting portion (51), a second connecting portion (52) and a third connecting portion (53), wherein the second connecting portion (52) is a cylindrical structure with an opening at the top, the first connecting portion (51) is arranged on the outer peripheral wall of the second connecting portion (52), and the first connecting portion (51) is a trumpet-shaped structure. The first connecting portion (51) is connected to the shell (1), and the second connecting portion (52) is connected to the feeding assembly (20). The third connecting portion (53) is arranged at the bottom of the second connecting portion (52), and the third connecting portion (53) extends from the bottom of the second connecting portion (52) toward the nozzle seat (6). The discharge channel (17) extends from the bottom of the second connecting portion (52) to the third connecting portion (53), and the third connecting portion (53) contacts one end of the nozzle seat (6).

11. The airbrush according to claim 10, wherein: The lower surface of the bottom of the second connecting portion (52) is provided with an annular protrusion (54), and the annular protrusion (54) and the lower surface of the bottom of the second connecting portion (52) form a limiting cavity, one end of the second elastic member (10) is located in the limiting cavity, and the limiting cavity is used to limit the second elastic member (10).

12. The airbrush according to claim 9, wherein: The nozzle seat (6) is provided with an internal thread, and the nozzle head (7) is provided with an external thread, and the internal thread and the external thread cooperate to screw the nozzle seat (6) and the nozzle head (7); a fourth channel (14) and a fifth channel (15) are also provided on the nozzle seat (6); an air pump (8) is provided in the housing (1), and the air pump (8) is connected to an air inlet channel (16), one end of the air inlet channel (16) is connected to the fourth channel (14), and one end of the fifth channel (15) is communicated with the fourth channel (14), and the air flow enters the fourth channel (14) from the air inlet channel (16), then enters the fifth channel (15) from the fourth channel (14), and then enters the nozzle head (7) from the fifth channel (15); the second adjusting member (3) is pressed, one end of the second adjusting member (3) touches the micro switch, the micro switch is turned on, and the air pump (8) starts to work; the second adjusting member (3) is released, the connection between the second adjusting member (3) and the micro switch is disconnected, the micro switch is turned off, and the air pump (8) stops working.

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