Movable small sand blasting device

Abstract

The utility model discloses a small movable sand blasting device, which relates to the technical field of sand blasting devices and comprises a sand blasting bin, an air pump is mounted at the bottom of the right side of the sand blasting bin, a spray gun is horizontally placed at the top end of a metal screen, and an air inlet pipe is arranged between the air pump and the spray gun. A sand tank assembly facilitating sand replacement is arranged at the bottom end of the sand blasting bin. According to the movable small sand blasting device, by arranging the sand inlet connector, the sand collecting tank, the connecting ring opening, the external thread connector and the sand collecting funnel, when the movable small sand blasting device is used, fine sand blasting materials in the sand collecting tank are rapidly sucked in along the sand inlet hose and mixed into air flow to conduct sand blasting treatment on a workpiece, the sand inlet amount is conveniently adjusted through the adjusting valve, and when sand needs to be replaced, the sand collecting tank is rotated; when the sand collecting device is used, a connecting ring opening in the top of the sand collecting tank is separated from an external thread connector in the bottom of the sand collecting hopper, the whole sand collecting tank can be detached, new spraying materials are replaced for operation, the function of conveniently and rapidly replacing sand is achieved, and the problem that the device does not have the function of conveniently and rapidly replacing sand is solved.

Description

Technical Field

[0001] This utility model relates to the technical field of sandblasting devices, specifically a mobile small sandblasting device. Background Technology

[0002] Sandblasting is a surface treatment process for workpieces. It uses compressed air to propel abrasive particles at high speed onto the surface of the workpiece, altering its appearance or shape. Due to the impact and cutting action of the abrasive particles on the workpiece surface, the surface achieves a certain degree of cleanliness and varying roughness.

[0003] Most of the portable small sandblasting devices currently on the market are similar in overall structure. They use an air pump to pump air into the spray gun. When the high-pressure gas is sprayed, it creates a negative pressure that sucks up the sand and mixes it into the airflow. However, there are some functional shortcomings in actual use, and there is room for improvement. For example, the abrasive used for sandblasting is mostly stored directly at the bottom of the spray chamber. When changing the sand, the spray chamber needs to be opened for cleaning, which is relatively troublesome and does not have the function of easy and quick sand changing.

[0004] Now, a novel, portable, small-scale sandblasting device is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a portable, small-sized sandblasting device to solve the problem mentioned in the background art of not having the function of easy and quick sand replacement.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a portable small sandblasting device, including a sandblasting chamber, with two sets of glove openings at the front end of the sandblasting chamber, and rubber gloves movably connected inside the glove openings; a glass cover is hinged to the top of the sandblasting chamber; a metal screen is horizontally placed at the bottom inside the sandblasting chamber; a PLC controller is fixedly connected to the middle position of the front end of the sandblasting chamber; an air pump is installed at the bottom right side of the sandblasting chamber; a spray gun is horizontally placed at the top of the metal screen; an air inlet pipe is provided between the air pump and the spray gun; a bottom support frame is provided below the sandblasting chamber; casters are installed at the four corners of the bottom of the bottom support frame; and a sand tank assembly for easy sand replacement is provided at the bottom of the sandblasting chamber.

[0007] The sand tank assembly includes a sand collecting funnel welded to the bottom of the sandblasting chamber. The front end of the spray gun is provided with a sand inlet. The bottom end of the sand collecting funnel is welded with an external threaded interface. The bottom end of the external threaded interface is provided with a sand collecting tank. The top end of the sand collecting tank is welded with a connecting ring. The bottom end of the sand collecting tank is movably connected with a sand inlet hose. The end of the sand inlet hose is provided with a regulating valve. The end of the regulating valve near the sand inlet is welded with an internal threaded ring.

[0008] As a further technical solution of this utility model, the sand inlet interface is threaded on the outside, and the external thread of the sand inlet interface matches the internal thread of the internal thread ring.

[0009] As a further technical solution of this utility model, the inside of the connecting ring is threaded, and the thread inside the connecting ring matches the thread outside the external thread interface.

[0010] As a further technical solution of this utility model, the vertical center lines of the sandblasting chamber, the external threaded interface, and the sand collecting funnel coincide, the interiors of the sandblasting chamber, the external threaded interface, and the sand collecting funnel are connected, and the PLC controller and the air pump are electrically connected.

[0011] As a further technical solution of this utility model, fixed tubes are vertically welded to the front and rear ends of the top of the bottom support frame, and extended tubes are vertically welded to the four corners of the bottom of the sandblasting chamber. A first electric cylinder is installed inside the fixed tube.

[0012] As a further technical solution of this utility model, the output end of the first electric cylinder is connected to the top end inside the extension tube, the extension tube can slide up and down along the outside of the fixed tube, and the PLC controller and the first electric cylinder are electrically connected.

[0013] As a further technical solution of this utility model, two sets of second electric cylinders are respectively installed on both sides of the top of the bottom support frame, and support plates are respectively provided on both sides below the bottom support frame, with anti-slip rubber pads glued to the bottom of the support plates.

[0014] As a further technical solution of this utility model, the output end of the second electric cylinder is connected to the top of the support plate, the support plate is symmetrically distributed about the vertical center line of the bottom support frame, and the PLC controller and the second electric cylinder are electrically connected.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the movable small sandblasting device not only realizes the function of easy and quick sand replacement, but also realizes the function of adjustable operating height, and also realizes the function of stable position and anti-displacement.

[0016] (1) By setting up a sand inlet, an internal threaded ring, a regulating valve, a sand inlet hose, a sand collection tank, a connecting ring, an external threaded interface and a sand collection funnel, when in use, open the glass cover and place the workpiece horizontally on the metal screen. When sandblasting, close the glass cover, the operator puts both hands into rubber gloves, holds the workpiece with one hand and holds the spray gun with the other hand. The air pump continuously pumps air into the spray gun through the air inlet pipe. At the same time as the spray gun sprays out the jet, the sand inlet forms a negative pressure. The fine sand in the sand collection tank is quickly sucked in along the sand inlet hose and mixed into the airflow to sandblast the workpiece. The regulating valve makes it easy to adjust the sand inlet. When it is necessary to change the sand, rotate the sand collection tank. The connecting ring at the top of the sand collection tank is disengaged from the external threaded interface at the bottom of the sand collection funnel. The sand collection tank can be removed as a whole and a new spray material can be put in for operation. This realizes the function of easy and quick sand changing.

[0017] (2) By setting up a fixed tube, an extension tube and a first electric cylinder, when in use, the operator can adjust the height of the sandblasting chamber according to his own needs. The controller controls the first electric cylinder to retract or extend. The extension tube can slide up and down along the fixed tube under the traction and pushing of the first electric cylinder, and the height of the sandblasting chamber is adjusted accordingly, thus realizing the function of adjustable operating height.

[0018] (3) By setting a second electric cylinder, a support plate and an anti-slip rubber pad, the position of the equipment can be adjusted by the casters during use. When a fixed position is needed, the second electric cylinder is activated. The second electric cylinder pushes the support plate down, and the anti-slip rubber pad at the bottom of the support plate presses against the ground, thus forming a stable support and realizing the function of stabilizing the position and preventing displacement. Attached Figure Description

[0019] Figure 1 This is a front view structural diagram of the present utility model;

[0020] Figure 2 This is a top-view enlarged structural diagram of the sandblasting chamber of this utility model;

[0021] Figure 3 For the present utility model Figure 2 Enlarged cross-sectional view of a portion of point A in the middle section;

[0022] Figure 4 This is a front view structural diagram of the sand collecting tank of this utility model;

[0023] Figure 5 This is a magnified structural diagram of a partial cross-section of the extension tube of this utility model.

[0024] Figure 6 This is a side view enlarged structural schematic diagram of the support plate of this utility model.

[0025] In the diagram: 1. Sandblasting chamber; 2. Glove opening; 3. Rubber glove; 4. Glass cover; 5. Metal screen; 6. PLC controller; 7. Air inlet pipe; 8. Air pump; 9. Spray gun; 10. Sand inlet interface; 11. Internal threaded ring; 12. Regulating valve; 13. Sand inlet hose; 14. Sand collection tank; 15. Connecting ring; 16. External threaded interface; 17. Sand collection funnel; 18. Bottom support frame; 19. Fixed cylinder; 20. Extension cylinder; 21. First electric cylinder; 22. Casters; 23. Second electric cylinder; 24. Support plate; 25. Anti-slip rubber pad. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example: Please refer to Figure 1-6 A portable small sandblasting device includes a sandblasting chamber 1. The front end of the sandblasting chamber 1 has two sets of glove openings 2. Rubber gloves 3 are movably connected inside the glove openings 2. A glass cover 4 is hinged to the top of the sandblasting chamber 1. A metal screen 5 is horizontally placed at the bottom inside the sandblasting chamber 1. A PLC controller 6 is fixedly connected to the middle position of the front end of the sandblasting chamber 1. An air pump 8 is installed at the bottom right side of the sandblasting chamber 1. A spray gun 9 is horizontally placed at the top of the metal screen 5. An air inlet pipe 7 is provided between the air pump 8 and the spray gun 9. A bottom support frame 18 is provided below the sandblasting chamber 1. Universal wheels 22 are installed at the four corners of the bottom of the bottom support frame 18. A sand tank assembly for easy sand replacement is provided at the bottom of the sandblasting chamber 1.

[0028] Please see Figure 1-6 A portable small sandblasting device also includes a sand tank assembly, which includes a sand collecting funnel 17, which is welded to the bottom of the sandblasting chamber 1. The front end of the spray gun 9 is provided with a sand inlet 10. The bottom end of the sand collecting funnel 17 is welded with an external threaded interface 16. The bottom end of the external threaded interface 16 is provided with a sand collecting tank 14. The top end of the sand collecting tank 14 is welded with a connecting ring 15. The bottom end of the sand collecting tank 14 is movably connected with a sand inlet hose 13. The end of the sand inlet hose 13 is provided with a regulating valve 12. The end of the regulating valve 12 near the sand inlet interface 10 is welded with an internal threaded ring 11.

[0029] The sand inlet 10 has external threads, which match the internal threads of the internal threaded ring 11. The connecting ring 15 has internal threads, which match the external threads of the external threaded interface 16. The vertical center lines of the sandblasting chamber 1, the external threaded interface 16, and the sand collecting funnel 17 are aligned. The internal parts of the sandblasting chamber 1, the external threaded interface 16, and the sand collecting funnel 17 are connected. The PLC controller 6 and the air pump 8 are electrically connected, facilitating the replacement of sand.

[0030] Specifically, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, while the spray gun 9 sprays outwards, the sand inlet 10 creates a negative pressure, and the fine sand in the sand collection tank 14 is quickly sucked in along the sand inlet hose 13 and mixed into the airflow to sandblast the workpiece. The regulating valve 12 allows for easy adjustment of the sand feed rate. When the sand needs to be changed, the sand collection tank 14 is rotated, and the connecting ring 15 at the top of the sand collection tank 14 disengages from the external threaded interface 16 at the bottom of the sand collection funnel 17, allowing the sand collection tank 14 to be completely removed and replaced with new spray material for operation. The PLC controller 6 and the air pump 8 are electrically connected. This technology is existing technology and will not be described in detail.

[0031] Fixed cylinders 19 are vertically welded to the front and rear ends of the top of the bottom support frame 18. Extending cylinders 20 are vertically welded to the four corners of the bottom of the sandblasting chamber 1. A first electric cylinder 21 is installed inside the fixed cylinder 19. The output end of the first electric cylinder 21 is connected to the top end of the extension cylinder 20. The extension cylinder 20 can slide up and down along the outside of the fixed cylinder 19. The PLC controller 6 is electrically connected to the first electric cylinder 21. The height of the equipment is adjustable.

[0032] Specifically, such as Figure 1 and Figure 5 As shown, the first electric cylinder 21 is controlled by the controller to retract or extend. The extended cylinder 20 can slide up and down along the fixed cylinder 19 under the traction and pushing of the first electric cylinder 21, and the height of the sandblasting chamber 1 is adjusted accordingly. The PLC controller 6 and the first electric cylinder 21 are electrically connected. This technology is existing technology, so it will not be described in detail.

[0033] Two sets of second electric cylinders 23 are installed on both sides of the top of the bottom support frame 18. Support plates 24 are set on both sides below the bottom support frame 18. Anti-slip rubber pads 25 are glued to the bottom end of the support plates 24. The output end of the second electric cylinder 23 is connected to the top of the support plate 24. The support plates 24 are symmetrically distributed about the vertical center line of the bottom support frame 18. The PLC controller 6 and the second electric cylinder 23 are electrically connected.

[0034] Specifically, such as Figure 1 and Figure 6As shown, the second electric cylinder 23 pushes the support plate 24 down, and the anti-slip rubber pad 25 at the bottom of the support plate 24 presses against the ground to form a stable support. The PLC controller 6 and the second electric cylinder 23 are electrically connected. This technology is existing technology, so it will not be described in detail.

[0035] Working principle: When using this utility model, first, open the glass cover 4 and place the workpiece horizontally on the metal screen 5. When sandblasting, close the glass cover 4. The operator inserts both hands into rubber gloves 3, holds the workpiece with one hand and holds the spray gun 9 with the other. The air pump 8 continuously pumps air into the spray gun 9 through the air inlet pipe 7. At the same time as the spray gun 9 sprays outward, the sand inlet 10 forms a negative pressure. The fine sand in the sand collection tank 14 is quickly sucked in along the sand inlet hose 13 and mixed into the airflow to sandblast the workpiece. The regulating valve 12 makes it easy to adjust the sand inlet. When it is necessary to change the sand, rotate the sand collection tank 14. The connecting ring 15 at the top of the sand collection tank 14 disengages from the external threaded interface 16 at the bottom of the sand collection funnel 17, and the sand collection tank 14 can be completely removed and replaced with new sand for operation. The height of the sandblasting chamber 1 can be adjusted by the operator using the controller to retract or extend the first electric cylinder 21. The extended cylinder 20 slides up and down along the fixed cylinder 19 under the traction and pushing of the first electric cylinder 21, thus adjusting the height of the sandblasting chamber 1. The position of the equipment can be adjusted using the casters 22. When a fixed position is needed, the second electric cylinder 23 is activated, pushing the support plate 24 downwards. The anti-slip rubber pad 25 at the bottom of the support plate 24 presses firmly against the ground, providing stable support.

[0036] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A portable small sandblasting device, comprising a sandblasting chamber (1), characterized in that: The front end of the sandblasting chamber (1) is provided with two sets of glove openings (2), and a rubber glove (3) is movably connected inside the glove openings (2). The top of the sandblasting chamber (1) is hinged with a glass cover (4). A metal screen (5) is horizontally placed at the bottom of the interior of the sandblasting chamber (1). A PLC controller (6) is fixedly connected at the middle position of the front end of the sandblasting chamber (1). An air pump (8) is installed at the bottom right side of the sandblasting chamber (1). A spray gun (9) is horizontally placed at the top of the metal screen (5). An air inlet pipe (7) is provided between the air pump (8) and the spray gun (9). A bottom support frame (18) is provided below the sandblasting chamber (1). Universal wheels (22) are installed at the four corners of the bottom of the bottom support frame (18). A sand tank assembly for easy sand replacement is provided at the bottom of the sandblasting chamber (1). The sand tank assembly includes a sand collecting funnel (17), which is welded to the bottom of the sandblasting chamber (1). The front end of the spray gun (9) is provided with a sand inlet (10). The bottom end of the sand collecting funnel (17) is welded with an external threaded interface (16). The bottom end of the external threaded interface (16) is provided with a sand collecting tank (14). The top end of the sand collecting tank (14) is welded with a connecting ring (15). The bottom end of the sand collecting tank (14) is movably connected with a sand inlet hose (13). The end of the sand inlet hose (13) is provided with a regulating valve (12). The end of the regulating valve (12) near the sand inlet interface (10) is welded with an internal threaded ring (11).

2. The compact sandblasting device according to claim 1, characterized in that: The sand inlet (10) has external threads, and the external threads of the sand inlet (10) match the internal threads of the internal threaded ring (11).

3. The compact sandblasting device of claim 1, wherein: The inside of the connecting ring (15) is threaded, and the thread inside the connecting ring (15) matches the thread outside the external thread interface (16).

4. The compact sandblasting device of claim 1, wherein: The vertical center lines of the sandblasting chamber (1), the external threaded interface (16), and the sand collection funnel (17) coincide, and the interiors of the sandblasting chamber (1), the external threaded interface (16), and the sand collection funnel (17) are connected. The PLC controller (6) and the air pump (8) are electrically connected.

5. The compact sandblasting device of claim 1, wherein: The bottom support frame (18) has a fixed tube (19) vertically welded to the front and rear ends of the top, and an extension tube (20) vertically welded to the four corners of the bottom of the sandblasting chamber (1). The first electric cylinder (21) is installed inside the fixed tube (19).

6. The compact sandblasting device according to claim 5, characterized in that: The output end of the first electric cylinder (21) is connected to the top end inside the extension tube (20). The extension tube (20) can slide up and down along the outside of the fixed tube (19). The PLC controller (6) and the first electric cylinder (21) are electrically connected.

7. The compact sandblasting device of claim 1, wherein: Two sets of second electric cylinders (23) are installed on the top two sides of the bottom support frame (18), and support plates (24) are provided on the bottom two sides of the bottom support frame (18). Anti-slip rubber pads (25) are glued to the bottom end of the support plates (24).

8. The compact sandblasting device according to claim 7, characterized in that: The output end of the second electric cylinder (23) is connected to the top of the support plate (24). The support plate (24) is symmetrically distributed about the vertical center line of the bottom support frame (18). The PLC controller (6) and the second electric cylinder (23) are electrically connected.

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