Handheld paint spraying device

Abstract

The handheld paint spraying device comprises a paint box, a handle rod, a feeding hose, a paint pump and a spray head, the handle rod is in a thin strip shape, the head end of the handle rod is bent towards one side and connected with the spray head, a feeding hole communicated with the spray head is formed in the handle rod, and the paint pump is installed at the tail end of the handle rod. An inlet and an outlet of the paint pump are connected with the feeding hose and the feeding hole respectively, the other end of the feeding hose is connected with the paint box, a switch button is arranged on the handle rod, a rechargeable battery is arranged at the bottom of the paint box, the rechargeable battery, the switch button and the paint pump are connected to form an electric loop, and a handle is installed at the top end of the paint box. A containing groove with an opening facing the direction is formed in one side of the paint box, the spray head and the paint box are arranged in a split mode, and the spray head is connected with a thin-strip-shaped handle rod to be held by hand, so that the spray head penetrates into some narrow spaces to conduct paint spraying.

Description

Technical Field

[0001] The utility model relates to the technical field of painting devices, in particular to a handheld painting device. Background Art

[0002] Some sofas in the prior art use wood as the frame, and there are seat cushions and soft backs on the frame. For the sake of beauty and protection, painting is usually required on the wooden frame. For handmade sofas, painting is often carried out by a handheld painting device.

[0003] The utility model of "a handheld paint can for furniture manufacturing" with the patent number "CN206924927U" records: a main tank body, a sealing cover and an outer cover. A sleeve ring is arranged on the outer side of the main tank body. A sealing cover is arranged on the top of the main tank body. A pressing block is arranged on the top of the sealing cover. A spray port is arranged at one end of the pressing block. An amplifier is arranged at one end of the spray port. An outer cover is arranged at the bottom of the pressing block. A transmission pipe is arranged inside the outer cover. A spring is arranged at the bottom of the transmission pipe. A suction pipe is arranged at the bottom of the spring. A sealing block is arranged on the outer side of the spring. A pressing ring is arranged at the bottom of the sealing block. By setting the sleeve ring, the user can insert the sleeve ring, and it is not easy to cause hand fatigue even in the case of long-term work. By setting the amplifier, the paint can be sprayed more diffusely, preventing the sprayed paint from sticking and affecting the beauty.

[0004] In the above patent, the main tank body and the spray port are set as a whole. And in order to increase the paint capacity, the volume of the main tank body is relatively large, thus increasing the volume of the device. In practice, the wooden frame of the sofa is usually erected first and then painted. Therefore, there are some corners with small spaces in the sofa frame. For these corners, the handheld paint can of the above patent cannot reach deep for painting. Summary of the Utility Model

[0005] In order to solve the deficiencies in the above prior art, the utility model provides a handheld painting device.

[0006] In order to achieve the above technical effects, the utility model adopts the following scheme:

[0007] A handheld paint spraying device comprises a paint box, a handle bar, a feeding hose, a paint pump and a spray head, wherein the handle bar is in the shape of a thin strip, the head end of the handle bar is bent toward one side and connected to the spray head, a feeding hole connected to the spray head is provided in the handle bar, the paint pump is installed at the end of the handle bar, the inlet and outlet of the paint pump are respectively connected to the feeding hose and the feeding hole, the other end of the feeding hose is connected to the paint box, a switch button is provided on the handle bar, a rechargeable battery is provided at the bottom of the paint box, the rechargeable battery is connected to the switch button and the paint pump to form an electrical circuit, a handle is installed at the top of the paint box, and a placement groove with an opening facing one side of the paint box is provided.

[0008] A preferred technical solution is that a grip portion is provided on the handle rod at a position close to the end thereof, the switch button is located at the front end of the grip portion, the button comprises a convex block, a pressing block, a spring, a first conductive contact, a second conductive contact and a conductive sheet, the convex block is protruding from the surface of the handle rod, the convex block is provided with a groove whose rear depth is perpendicular to the length of the handle rod, the mounting block is matched and slidably arranged in the groove, a plurality of guide grooves arranged along the depth direction of the groove are provided on the side wall of the groove, a guide block is protruding from the pressing block and is embedded in the guide to slide inwardly, the interior of the mounting block is connected to the bottom of the groove by a plurality of springs, the first conductive contact and the second conductive contact are fixedly arranged on the bottom of the groove, the first conductive contact is electrically connected to a rechargeable battery, the second conductive contact is point-connected to a paint pump, the paint pump is electrically connected to a rechargeable battery, the conductive sheet is fixedly arranged at the inner end of the pressing block, and the two ends of the conductive sheet respectively correspond to the first conductive contact and the second conductive contact, and the conductive sheet is not connected to the spring.

[0009] A preferred technical solution is that an insulating box is provided at the end of the handle rod, a wiring terminal is provided in the insulating box, a wiring wire connecting the wiring terminal and the switch button is provided in the handle rod, a sheath is provided on the feeding hose along its length, a conductive wire is passed through the sheath, one end of the conductive wire is connected to a rechargeable battery, and the other end of the conductive wire extends into the insulating box to connect the wiring terminal.

[0010] According to a preferred technical solution, a vertically visible transparent window is provided on the side wall of the paint box.

[0011] According to a preferred technical solution, the paint box comprises a box body with an upward opening and a box cover matching the box body, an internal thread is provided on the inner wall of the upper end of the box body, an external thread matching the internal thread is provided on the side wall of the box cover, the box cover is threadedly connected to the box body, and the handle is provided at the upper end of the box cover.

[0012] Compared with the prior art, the beneficial effects are:

[0013] The structure of the utility model is simple and convenient to use. The spray head is separately arranged from the paint box, and the spray head is connected to a thin strip-shaped handle rod for hand-held use, so that the spray head can be inserted into some narrow spaces for spraying paint. Description of the Drawings

[0014] Figure 1 is a schematic cross-sectional view of the utility model;

[0015] Figure 2 is Figure 1 an enlarged structural schematic diagram of part A in

[0016] Figure 3 is a schematic cross-sectional view of the sheath in the utility model.

[0017] Reference numerals: 1, paint box; 2, box body; 3, box cover; 4, handle; 5, rechargeable battery; 6, visible transparent window; 7, placement groove; 8, handle rod; 9, spray head; 10, paint pump; 11, sheath; 12, feed hose; 13, conducting wire; 14, insulating box; 15, grip part; 16, switch button; 17, convex block; 18, pressing block; 19, guiding groove; 20, guiding block; 21, spring; 22, first conductive contact; 23, second conductive contact; 24, conductive sheet. Detailed Embodiment

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0019] A hand-held spraying device includes a paint box 1, a handle rod 8, a feed hose 12, a paint pump 10, and a spray head 9. The handle rod 8 is in a thin strip shape. The head end of the handle rod 8 bends towards one side and is connected to the spray head 9. A feed hole communicating with the spray head 9 is provided inside the handle rod 8. The paint pump 10 is installed at the end of the handle rod 8. The inlet and outlet of the paint pump 10 are respectively connected to the feed hose 12 and the feed hole. The other end of the feed hose 12 is connected to the paint box 1. A switch button 16 is provided on the handle rod 8. A rechargeable battery 5 is provided at the bottom of the paint box 1. The rechargeable battery 5, the switch button 16, and the paint pump 10 are connected to form an electrical circuit. A handle 4 is installed at the top end of the paint box 1. A placement groove 7 with an opening facing one side is provided on one side of the paint box 1.

[0020] The spray head 9 is separately arranged from the paint box 1 and is connected by the feed hose 12. The spray head 9 is connected to a thin strip-shaped handle rod 8 for hand-held use, so that the spray head 9 can be inserted into some narrow spaces for spraying paint.

[0021] The paint box 1 contains paint. Hold the handle rod 8 and extend the spray head 9 to the position where spraying is required. Press the switch button 16, and the paint in the paint box 1 is pumped by the paint pump 10 into the spray head 9 and sprayed out through the spray head 9. When spraying is not required, insert the handle rod 8 and the spray head 9 downward into the placement groove 7 for placement, and move the handheld spraying device through the handle 4.

[0022] In a preferred technical solution, a grip portion 15 is provided at a position on the handle rod 8 close to the end. The switch button 16 is located at the front end of the grip portion 15. The button includes a convex block 17, a pressing block 18, a spring 21, a first conductive contact 22, a second conductive contact 23, and a conductive sheet 24. The convex block 17 protrudes from the surface of the handle rod 8. A groove is formed on the convex block 17 with a depth perpendicular to the length of the handle rod 8. The mounting block is slidably arranged in the groove in a matching manner. A plurality of guide grooves 19 are formed on the side wall of the groove along the depth direction of the groove. A guide block 20 protruding from the pressing block 18 is embedded and slidable in the guide groove. A plurality of springs 21 are connected between the inside of the mounting block and the bottom of the groove. The first conductive contact 22 and the second conductive contact 23 are fixedly arranged on the bottom of the groove. The first conductive contact 22 is electrically connected to the rechargeable battery 5. The second conductive contact 23 is electrically connected to the paint pump 10. The paint pump 10 is electrically connected to the rechargeable battery 5. The conductive sheet 24 is fixedly arranged at the inner end of the pressing block 18, and the two ends of the conductive sheet 24 correspond to the first conductive contact 22 and the second conductive contact 23 respectively. The conductive sheet 24 is not connected to the spring 21.

[0023] Hold the grip portion 15 by hand, and press the pressing block 18 with the thumb. When spraying, press the pressing block 18 to make the two ends of the conductive sheet 24 contact the first conductive contact 22 and the second conductive contact 23 respectively, so that the first conductive contact 22 and the second conductive contact 23 are conducted, thereby connecting the electrical circuit. The paint pump 10 is started to pump the paint into the spray head 9 and sprayed out. When the pressing block 18 is pressed, the spring 21 is compressed. When spraying is not required, release the pressing block 18, and the pressing block 18 moves under the elastic action of the spring 21 to separate the conductive sheet 24 from the first conductive contact 22 and the second conductive contact 23, thereby disconnecting the circuit. In this way, it is convenient to spray paint and stop spraying at any time.

[0024] The guide groove 19 does not penetrate the groove. Therefore, since the guide block 20 slides in the guide groove 19, the pressing block 18 can be restricted on the convex block 17.

[0025] A preferred technical solution is that an insulating box 14 is provided at the end of the handle rod 8, a wiring terminal is provided in the insulating box 14, a wiring line connecting the wiring terminal and the switch button 16 is provided in the handle rod 8, a sheath 11 is provided on the feeding hose 12 along its length, a conductive wire 13 is passed through the sheath 11, one end of the conductive wire 13 is connected to the rechargeable battery 5, and the other end of the conductive wire 13 extends into the insulating box 14 to connect the wiring terminal.

[0026] According to a preferred technical solution, a vertically visible transparent window 6 is provided on the side wall of the paint box 1 .

[0027] The amount of paint in the paint box 1 can be viewed through the visible transparent window 6 .

[0028] According to a preferred technical solution, the paint box 1 includes a box body 2 with an upward opening and a box cover 3 matching the box body 2. An internal thread is provided on the inner wall of the upper end of the box body 2, and an external thread matching the internal thread is provided on the side wall of the box cover 3. The box cover 3 is threadedly connected to the box body 2, and the handle 4 is provided at the upper end of the box cover 3.

[0029] In the description of the present utility model, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is conventionally placed when in use, or are the orientations or positional relationships conventionally understood by those skilled in the art. They are only for the convenience of describing the present utility model 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 operated in a specific orientation, and therefore should not be understood as a limitation on the present utility model.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0031] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

Claims

1. A handheld paint spraying device, characterized in that, The invention comprises a paint box (1), a handle bar (8), a feeding hose (12), a paint pump (10) and a spray head (9), wherein the handle bar (8) is in the shape of a thin strip, the head end of the handle bar (8) is bent toward one side and connected to the spray head (9), the handle bar (8) has a feeding hole connected to the spray head (9), the paint pump (10) is installed at the end of the handle bar (8), the inlet and outlet of the paint pump (10) are respectively connected to the feeding hose (12) and the feeding hole, the other end of the feeding hose (12) is connected to the paint box (1), the handle bar (8) is provided with a switch button (16), the bottom of the paint box (1) is provided with a rechargeable battery (5), the rechargeable battery (5) is connected with the switch button (16) and the paint pump (10) to form an electrical circuit, the top of the paint box (1) is provided with a handle (4), and one side of the paint box (1) is provided with a placement groove (7) with an opening facing the paint box.

2. The hand-held paint spraying device according to claim 1, wherein, A grip portion (15) is provided at a position close to the end of the handle bar (8); the switch button (16) is located at the front end of the grip portion (15); the button comprises a convex block (17), a push block (18), a spring (21), a first conductive contact (22), a second conductive contact (23) and a conductive sheet (24); the convex block (17) is protruding from the surface of the handle bar (8); a groove having a depth perpendicular to the length of the handle bar (8) is provided on the convex block (17); a mounting block is matched and slidably arranged in the groove; a plurality of guide grooves (19) arranged along the depth direction of the groove are provided on the side wall of the groove; a spring (21) is provided on the push block (18) and is embedded in the guide to slide inside the groove; The invention relates to a guide block (20), wherein the interior of the mounting block is connected to the bottom of the groove via a plurality of springs (21), the first conductive contact (22) and the second conductive contact (23) are fixedly arranged on the bottom of the groove, the first conductive contact (22) is electrically connected to a rechargeable battery (5), the second conductive contact (23) is point-connected to a paint pump (10), the paint pump (10) is electrically connected to the rechargeable battery (5), the conductive sheet (24) is fixedly arranged at the inner end of the push block (18), and the two ends of the conductive sheet (24) correspond to the first conductive contact (22) and the second conductive contact (23) respectively, and the conductive sheet (24) is not connected to the spring (21).

3. The hand-held paint spraying device according to claim 1, wherein, An insulating box (14) is provided at the end of the handle bar (8), a wiring terminal is provided in the insulating box (14), a wiring line connecting the wiring terminal and a switch button (16) is provided in the handle bar (8), a sheath (11) is provided on the feeding hose (12) along its length, a conductive line (13) is passed through the sheath (11), one end of the conductive line (13) is connected to the rechargeable battery (5), and the other end of the conductive line (13) extends into the insulating box (14) to connect the wiring terminal.

4. The hand-held paint spraying device according to claim 1, characterized in that, A vertical visible transparent window (6) is provided on the side wall of the paint box (1).

5. The hand-held paint spraying device according to claim 1, wherein, The paint box (1) includes a box body (2) with an upward opening and a box cover (3) matching the box body (2). An internal thread is provided on the inner wall at the upper end of the box body (2), and an external thread matching the internal thread is provided on the side wall of the box cover (3). The box cover (3) is threadedly connected to the box body (2), and the handle (4) is provided at the upper end of the box cover (3).

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