Environment-friendly handheld stone carving machine capable of being disassembled quickly

Abstract

The invention relates to the technical field of carving machines, and discloses a quick-detachable environment-friendly handheld stone carving machine which comprises a carving machine body and a carving tool bit installed at the left end of the carving machine body, a fixing cylinder is fixedly connected to the right end of the carving machine body, and a filtering assembly is arranged in the fixing cylinder. An air suction assembly is arranged on the inner wall of the left side of the fixing cylinder, a sealing assembly is arranged at the right end of the fixing cylinder, a dust collection assembly is arranged on the outer surface of the carving machine body and communicates with the fixing cylinder through a connecting assembly, and a limiting assembly is arranged on the connecting assembly. Negative pressure is formed in the fixing cylinder through the air suction assembly, at the moment, dust particles enter the fixing cylinder from the dust collection assembly and the connecting assembly, the dust particles are filtered through the filtering assembly, and therefore the situation that the dust particles fly into air to pollute the environment in the carving process is avoided, and the filtering assembly can be rapidly disassembled and assembled.

Description

Technical Field

[0001] The invention relates to the technical field of engraving machines, in particular to an environmentally friendly handheld stone engraving machine which can be quickly disassembled. Background Art

[0002] With the progress of the times, handheld stone engraving machines are becoming more and more popular. By driving the engraving head to rotate at high speed through a motor, the stone can be ground to obtain the desired shape. Compared with traditional engraving tools, handheld stone engraving machines are more labor-saving and more efficient.

[0003] Stone carving requires very careful observation, so a very bright light is needed to illuminate the stone for carving. However, it is inconvenient to move the lamp on the table, and the light is easily blocked by the hand, forming a shadow that reduces the carving accuracy. In addition, when the handheld stone carving machine is working, the carving head rotates at high speed to grind and carve the stone, which will generate a large amount of dust particles. These dust particles fly into the air and easily pollute the environment. Summary of the invention

[0004] In order to overcome the technical defects of the prior art, the present invention provides a quick-detachable environmentally friendly handheld stone engraving machine to solve the problem that the existing handheld stone engraving machine mentioned in the above background technology will generate a large amount of dust particles during operation, and these dust particles will fly into the air and easily pollute the environment.

[0005] The technical solution adopted by the present invention is: a quick-detachable environmentally friendly handheld stone engraving machine, including an engraving machine body and an engraving tool head installed at the left end of the engraving machine body, the right end of the engraving machine body is fixedly connected with a fixed cylinder, a filter assembly is arranged inside the fixed cylinder, an air suction assembly is arranged on the left inner wall of the fixed cylinder, a sealing assembly is arranged at the right end of the fixed cylinder, a dust collection assembly is arranged on the outer surface of the engraving machine body, the dust collection assembly is connected with the fixed cylinder through a connecting assembly, a limiting assembly is arranged on the connecting assembly, and a lighting assembly is arranged on the outer surface of the dust collection assembly.

[0006] Preferably, the filter assembly includes a mounting ring, a fixing frame and a dust bag, the inner wall of the fixing cylinder is fixedly connected with a fixing ring, the mounting ring is in contact with the fixing ring, the right end of the fixing frame is fixedly connected to the mounting ring, and the dust bag is fixedly connected to the outer surface of the fixing frame.

[0007] Preferably, a first sealing ring is provided between the fixing ring and the mounting ring, and the first sealing ring is made of rubber material.

[0008] Preferably, the air suction assembly includes a motor, a rotating shaft and fan blades, the motor is fixedly connected to the left inner wall of the fixed cylinder, one end of the rotating shaft is fixedly connected to the output end of the motor, and the other end of the rotating shaft is fixedly connected to the fan blades, and ventilation holes are provided on the front and rear sides of the fixed cylinder.

[0009] Preferably, the sealing assembly includes a cap and a second sealing ring, the second sealing ring is fixedly connected to the cap, a plurality of cylinders are evenly and fixedly connected to the left circumference of the cap, a movable block is slidably connected to the inside of the cylinder, a first spring is fixedly connected between the movable block and the right inner wall of the cylinder, a movable column is fixedly connected to the left end of the movable block, the left end of the movable column passes through the cylinder and contacts with the mounting ring, and the cap is movably connected to the fixed cylinder through a fixing assembly.

[0010] Preferably, the fixing assembly includes a rotating ring and a torsion spring, the rotating ring is rotatably connected to the outer surface of the fixed cylinder through a bearing, a circle of protrusions is fixedly connected to the right side of the rotating ring, the torsion spring is fixedly connected between the protrusion and the outer surface of the fixed cylinder, a plurality of L-shaped grooves are evenly arranged on the right circumference of the protrusion, a plurality of connecting rods are evenly fixedly connected on the outer surface of the cap, a block matched with the L-shaped groove is fixedly connected to the left end of the connecting rod, and a long groove matched with the connecting rod is arranged on the outer surface of the fixed cylinder.

[0011] Preferably, the dust collecting assembly includes a protective cover and a ring, the protective cover is sleeved on the outer surface of the engraving machine body, the ring is fixedly connected to the inner wall of the protective cover, the ring is a hollow structure, and a plurality of through holes are evenly opened on the left circumference of the ring.

[0012] Preferably, the connecting assembly includes a connecting pipe and a hose, the left end of the connecting pipe is connected to the ring, the other end of the connecting pipe is connected to the hose, the right end of the hose is connected to the fixed cylinder, and grooves are provided on both the upper and lower sides of the engraving machine body, and the connecting pipe is located inside the groove.

[0013] Preferably, the limit assembly includes a fixed box, a button, a connecting plate and two sliding rods, the fixed box is fixedly connected to the fixed cylinder, one end of the sliding rod is fixedly connected to the connecting plate, the other end of the sliding rod passes through the upper surface of the fixed box and is fixedly connected to the button, the sliding rod is slidably connected to the fixed box, the outer surface of the sliding rod located inside the fixed box is sleeved with a second spring, the upper surface of the connecting plate is fixedly connected to the limit rod, the right end of the connecting tube passes through the fixed box, and the left and right sides of the lower surface of the connecting tube are respectively provided with a first limit groove and a second limit groove corresponding to the limit rod.

[0014] Preferably, the lighting assembly includes a gooseneck tube, a lampshade and a lighting lamp, one end of the gooseneck tube is fixedly connected to the lampshade, the other end of the gooseneck tube is fixedly connected to the protective cover, and the lighting lamp is installed inside the lampshade.

[0015] The beneficial effects of the present invention are: 1. This quick-detachable environmentally friendly handheld stone engraving machine covers the engraving head with a dust collecting assembly, then turns on the switch of the lighting lamp to illuminate, and manually bends the gooseneck tube to deform the gooseneck tube and directs the lighting lamp to the grinding position of the engraving head, thereby illuminating the engraving area of ​​the stone, and the irradiation position can be adjusted at will, thereby improving the engraving accuracy.

[0016] 2. The quick-detachable environmentally friendly handheld stone engraving machine drives the shaft to rotate through a motor. The shaft can drive the fan blades to rotate during the rotation process. During the rotation of the fan blades, air is discharged from the vents to form a negative pressure in the fixed cylinder. At this time, when the engraving head on the engraving machine body is engraving, dust is sucked into the ring from the through hole, and then enters the fixed cylinder through the connecting pipe and the hose, and then is filtered through the dust removal bag in the fixed cylinder, thereby preventing dust particles from flying into the air and polluting the environment during the engraving process.

[0017] 3. The quick-detachable environment-friendly handheld stone engraving machine drives the protrusion to rotate and compress the torsion spring by rotating the rotating ring. At this time, the block is disengaged from the L-shaped slot, and then the cap together with the cylinder and the movable column are taken out from the right side of the fixed cylinder. Then the mounting ring, the fixing frame and the dust bag can be taken out, and a filter assembly with the mounting ring, the fixing frame and the dust bag can be replaced. Then the movable column on the left side of the cap is pressed against the mounting ring and pressed with the fixed cylinder through the second sealing ring. At this time, the movable block slides in the cylinder and compresses the first spring. The first spring presses the movable block against the mounting ring. At the same time, the connecting rod is located in the long groove to prevent the cap from rotating, and the block is located inside the L-shaped slot. At this time, the rotating ring is released to engage the block with the L-shaped slot through the restoring force of the torsion spring, so that the dust bag can be fixed in the fixed cylinder, thereby achieving the effect of quickly disassembling and assembling the filter assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the structure of the present invention; Figure 2 It is a three-dimensional schematic diagram of the structure of the present invention; Figure 3 It is a front cross-sectional schematic diagram of the present invention; Figure 4 For the present invention Figure 2 The enlarged schematic diagram of point A in the middle; Figure 5 For the present invention Figure 2 The enlarged schematic diagram of point B in the middle; Figure 6It is a front view structural schematic diagram of the present invention; Figure 7 For the present invention Figure 6 Schematic diagram of the cross section at AA in the middle; Figure 8 For the present invention Figure 7 The enlarged schematic diagram of the center C; Fig. 9 is a schematic diagram of a fixed cylinder of the present invention; Fig.10 is a schematic diagram of a filter assembly of the present invention; Fig.11 is a schematic diagram of a sealing assembly of the present invention; Fig.12 It is a schematic diagram of the movable column of the present invention.

[0019] Description of reference numerals: 1. engraving machine body; 2. engraving tool head; 3. fixing cylinder; 4. filtering assembly; 5. air suction assembly; 6. sealing assembly; 7. dust collecting assembly; 8. connecting assembly; 9. limiting assembly; 10. lighting assembly; 401. mounting ring; 402. fixing frame; 403. dust bag; 404. fixing ring; 405. first sealing ring; 501. motor; 502. rotating shaft; 503. fan blade; 504. vent; 601. cap; 602. second sealing ring; 603. cylinder; 604. movable block; 605. first spring; 606. movable column; 607, fixing assembly; 608, rotating ring; 609, torsion spring; 610, protrusion; 611, L-shaped slot; 612, connecting rod; 613, block; 614, long slot; 701, protective cover; 702, ring; 703, through hole; 801, connecting pipe; 802, hose; 803, groove; 901, fixing box; 902, button; 903, connecting plate; 904, sliding rod; 905, second spring; 906, limiting rod; 907, first limiting slot; 908, second limiting slot; 1001, gooseneck; 1002, lampshade; 1003, lighting lamp. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with the accompanying drawings: like Figure 1-12 As shown, this embodiment provides a quick-detachable environmentally friendly handheld stone engraving machine, including an engraving machine body 1 and an engraving tool head 2 installed at the left end of the engraving machine body 1, a fixed cylinder 3 is fixedly connected to the right end of the engraving machine body 1, a filter component 4 is arranged inside the fixed cylinder 3, an air suction component 5 is arranged on the left inner wall of the fixed cylinder 3, a sealing component 6 is arranged at the right end of the fixed cylinder 3, a dust collecting component 7 is arranged on the outer surface of the engraving machine body 1, the dust collecting component 7 is connected to the fixed cylinder 3 through a connecting component 8, a limit position component 9 is arranged on the connecting component 8, and a lighting component 10 is arranged on the outer surface of the dust collecting component 7; Specifically, the filter assembly 4 includes a mounting ring 401, a fixing frame 402 and a dust bag 403. The inner wall of the fixing cylinder 3 is fixedly connected with a fixing ring 404. The mounting ring 401 is in contact with the fixing ring 404. The right end of the fixing frame 402 is fixedly connected to the mounting ring 401. The dust bag 403 is fixedly connected to the outer surface of the fixing frame 402. The dust bag 403 in the fixing cylinder 3 can filter dust particles during the engraving process. The air suction component 5 includes a motor 501, a rotating shaft 502 and a fan blade 503. The motor 501 is fixedly connected to the left inner wall of the fixed cylinder 3. One end of the rotating shaft 502 is fixedly connected to the output end of the motor 501, and the other end of the rotating shaft 502 is fixedly connected to the fan blade 503. Ventilation holes 504 are provided on both the front and rear sides of the fixed cylinder 3. The rotating shaft 502 is driven to rotate by the motor 501. The rotating shaft 502 can drive the fan blade 503 to rotate during the rotation process. During the rotation process of the fan blade 503, air is discharged from the vent 504 to form a negative pressure in the fixed cylinder 3. The sealing assembly 6 includes a cap 601 and a second sealing ring 602, the second sealing ring 602 is fixedly connected to the cap 601, a plurality of cylinders 603 are evenly and fixedly connected to the left circumference of the cap 601, a movable block 604 is slidably connected inside the cylinder 603, a first spring 605 is fixedly connected between the movable block 604 and the right inner wall of the cylinder 603, a movable column 606 is fixedly connected to the left end of the movable block 604, the left end of the movable column 606 penetrates the cylinder 603 and contacts the mounting ring 401, and the cap 601 is movably connected to the fixed cylinder 3 through the fixing assembly 607. The fixed assembly 607 includes a rotating ring 608 and a torsion spring 609. The rotating ring 608 is rotatably connected to the outer surface of the fixed cylinder 3 through a bearing. A circle of protrusions 610 are fixedly connected to the right side of the rotating ring 608. The torsion spring 609 is fixedly connected between the protrusion 610 and the outer surface of the fixed cylinder 3. A plurality of L-shaped slots 611 are evenly opened on the right circumference of the protrusion 610. A plurality of connecting rods 612 are evenly fixedly connected to the outer surface of the cap 601. A card block 613 adapted to the L-shaped slot 611 is fixedly connected to the left end of the connecting rod 612. The outer surface of the fixed cylinder 3 The surface is provided with a long groove 614 adapted to the connecting rod 612. When there is a lot of dust in the dust bag 403, the rotating ring 608 is rotated to drive the protrusion 610 to rotate and compress the torsion spring 609. At this time, the block 613 is disengaged from the L-shaped slot 611, and then the cap 601 together with the cylinder 603 and the movable column 606 are taken out from the right side of the fixed cylinder 3, and then the mounting ring 401, the fixing frame 402 and the dust bag 403 can be taken out, and a filter assembly 4 with the mounting ring 401, the fixing frame 402 and the dust bag 403 can be replaced, and then the movable column on the left side of the cap 601 is removed. 606 is pressed on the mounting ring 401 and is pressed against the fixed cylinder 3 through the second sealing ring 602. At this time, the movable block 604 slides in the cylinder 603 and compresses the first spring 605. The movable block 604 is pressed against the mounting ring 401 through the first spring 605. At the same time, the connecting rod 612 is located in the long groove 614 to prevent the cap 601 from rotating, and the clamping block 613 is located inside the L-shaped clamping groove 611. At this time, the rotating ring 608 is released, and the clamping block 613 is clamped with the L-shaped clamping groove 611 through the restoring force of the torsion spring 609, so that the dust bag 403 can be fixed in the fixed cylinder 3; Furthermore, the dust collecting assembly 7 includes a protective cover 701 and a ring 702. The protective cover 701 is sleeved on the outer surface of the engraving machine body 1. The ring 702 is fixedly connected to the inner wall of the protective cover 701. The ring 702 is a hollow structure. A plurality of through holes 703 are evenly opened on the left circumference of the ring 702. When the engraving head 2 on the engraving machine body 1 is engraving, dust is sucked into the ring 702 from the through holes 703, thereby preventing dust particles from flying into the air and polluting the environment during the engraving process. Further, the connection assembly 8 includes a connection pipe 801 and a hose 802, the left end of the connection pipe 801 is connected to the ring 702, the other end of the connection pipe 801 is connected to the hose 802, and the right end of the hose 802 is connected to the fixed cylinder 3. Grooves 803 are provided on both sides of the upper and lower parts of the engraving machine body 1, and the connection pipe 801 is located inside the groove 803. Since the hose 802 can be extended, the connection pipe 801 can slide in the groove 803 to prevent the protective cover 701 from rotating on the engraving tool head 2; Furthermore, the limit assembly 9 includes a fixed box 901, a button 902, a connecting plate 903 and two slide bars 904. The fixed box 901 is fixedly connected to the fixed cylinder 3, one end of the slide bar 904 is fixedly connected to the connecting plate 903, the other end of the slide bar 904 passes through the upper surface of the fixed box 901 and is fixedly connected to the button 902, the slide bar 904 is slidably connected to the fixed box 901, the outer surface of the slide bar 904 located inside the fixed box 901 is sleeved with a second spring 905, and the upper surface of the connecting plate 903 is fixedly connected to the limit rod 9 06, the right end of the connecting tube 801 passes through the fixed box 901, and the left and right sides of the lower surface of the connecting tube 801 are respectively provided with a first limiting groove 907 and a second limiting groove 908 corresponding to the limiting rod 906. By pressing the button 902, the sliding rod 904 and the connecting plate 903 are driven to move. During the movement, the connecting plate 903 can stretch the second spring 905 and drive the limiting rod 906 to disengage from the first limiting groove 907, and then pull the protective cover 701 to fix it at different positions to facilitate the replacement of the engraving tool head 2; Furthermore, the lighting assembly 10 includes a gooseneck tube 1001, a lampshade 1002 and a lighting lamp 1003. One end of the gooseneck tube 1001 is fixedly connected to the lampshade 1002, and the other end of the gooseneck tube 1001 is fixedly connected to the protective cover 701. The lighting lamp 1003 is installed inside the lampshade 1002. The lighting lamp 1003 is turned on to emit light. The gooseneck tube 1001 is bent by hand to deform the gooseneck tube 1001 and the lighting lamp 1003 is directed to the grinding position of the engraving tool head 2, so that the engraving area of ​​the stone can be illuminated, and the irradiation position can be adjusted at will, thereby improving the engraving accuracy. See also Figure 3 and Figure 4 As shown, in order to improve the sealing performance between the fixing ring 401 and the mounting ring 404 , a first sealing ring 405 may be provided between the fixing ring 401 and the mounting ring 404 , and the first sealing ring 405 is made of rubber.

[0021] The working principle of the present invention is: pressing the button 902 drives the sliding rod 904 and the connecting plate 903 to move. During the movement, the connecting plate 903 can stretch the second spring 905 and drive the limiting rod 906 to disengage from the first limiting groove 907, and then pull the protective cover 701 to the left. Since the hose 802 can be extended, the connecting tube 801 slides in the groove 803 until the through hole 703 on the ring 702 covers the engraving tool head 2, and then release the button 902 to make the limiting rod 906 engage with the second limiting groove 908 through the restoring force of the second spring 905, and then turn on the switch of the lighting lamp 1003 to emit light, and manually bend the gooseneck tube 1001 to deform the gooseneck tube 1001 and point the lighting lamp 1003 at the engraving tool head 2 The grinding position of the engraving machine body 1 can illuminate the engraving area of ​​the stone, and the irradiation position can be adjusted at will, which improves the engraving accuracy. Then, the switch of the engraving machine body 1 is pressed to rotate the engraving head 2. At the same time, the motor 501 drives the rotating shaft 502 to rotate. The rotating shaft 502 can drive the fan blade 503 to rotate during the rotation. During the rotation of the fan blade 503, air is discharged from the vent 504 to form a negative pressure in the fixed cylinder 3. At this time, when the engraving head 2 on the engraving machine body 1 is engraving, dust is sucked into the ring 702 from the through hole 703, and then enters the fixed cylinder 3 through the connecting pipe 801 and the hose 802, and then is filtered by the dust removal bag 403 in the fixed cylinder 3, thereby preventing dust particles from flying into the air and polluting the environment during the engraving process; When there is a lot of dust in the dust bag 403, turn off the motor 501, then rotate the rotating ring 608 to drive the protrusion 610 to rotate and compress the torsion spring 609, then the block 613 is disengaged from the L-shaped slot 611, and then the cap 601 together with the cylinder 603 and the movable column 606 are taken out from the right side of the fixed cylinder 3, and then the mounting ring 401, the fixing frame 402 and the dust bag 403 can be taken out, and a filter assembly 4 with the mounting ring 401, the fixing frame 402 and the dust bag 403 can be replaced, and then the movable column 606 on the left side of the cap 601 is pressed on the mounting ring 401, and The second sealing ring 602 is pressed against the fixed cylinder 3. At this time, the movable block 604 slides in the cylinder 603 and compresses the first spring 605. The movable block 604 is pressed against the mounting ring 401 by the first spring 605. At the same time, the connecting rod 612 is located in the long groove 614 to prevent the cap 601 from rotating, and the clamping block 613 is located inside the L-shaped clamping groove 611. At this time, the rotating ring 608 is released, and the restoring force of the torsion spring 609 causes the clamping block 613 to be clamped with the L-shaped clamping groove 611, so that the dust bag 403 can be fixed in the fixed cylinder 3, thereby achieving the effect of quickly disassembling and assembling the filter assembly 4.

[0022] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for illustrating the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which shall fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A quick-detachable environmentally friendly handheld stone engraving machine, comprising an engraving machine body (1) and an engraving tool head (2) mounted on the left end of the engraving machine body (1), characterized in that: The right end of the engraving machine body (1) is fixedly connected to a fixed cylinder (3), a filter assembly (4) is arranged inside the fixed cylinder (3), an air suction assembly (5) is arranged on the left inner wall of the fixed cylinder (3), a sealing assembly (6) is arranged on the right end of the fixed cylinder (3), a dust collection assembly (7) is arranged on the outer surface of the engraving machine body (1), the dust collection assembly (7) is connected to the fixed cylinder (3) via a connecting assembly (8), a limit assembly (9) is arranged on the connecting assembly (8), and a lighting assembly (10) is arranged on the outer surface of the dust collection assembly (7).

2. The quick-detachable environmentally friendly handheld stone engraving machine according to claim 1 is characterized in that: The filter assembly (4) comprises a mounting ring (401), a fixing frame (402) and a dust removal bag (403); the inner wall of the fixing cylinder (3) is fixedly connected to a fixing ring (404); the mounting ring (401) is in contact with the fixing ring (404); the right end of the fixing frame (402) is fixedly connected to the mounting ring (401); and the dust removal bag (403) is fixedly connected to the outer surface of the fixing frame (402).

3. The quick-detachable environmentally friendly handheld stone engraving machine according to claim 2 is characterized in that: A first sealing ring (405) is provided between the fixing ring (401) and the mounting ring (404), and the first sealing ring (405) is made of rubber material.

4. The quick-detachable environmentally friendly handheld stone engraving machine according to claim 3 is characterized in that: The air suction component (5) comprises a motor (501), a rotating shaft (502) and a fan blade (503); the motor (501) is fixedly connected to the left inner wall of the fixed cylinder (3); one end of the rotating shaft (502) is fixedly connected to the output end of the motor (501); the other end of the rotating shaft (502) is fixedly connected to the fan blade (503); and ventilation openings (504) are provided on both the front and rear sides of the fixed cylinder (3).

5. The quick-detachable environmentally friendly handheld stone engraving machine according to claim 4 is characterized in that: The sealing assembly (6) comprises a cap (601) and a second sealing ring (602), wherein the second sealing ring (602) is fixedly connected to the cap (601), a plurality of cylinders (603) are evenly and fixedly connected to the left circumference of the cap (601), a movable block (604) is slidably connected inside the cylinder (603), a first spring (605) is fixedly connected between the movable block (604) and the right inner wall of the cylinder (603), a movable column (606) is fixedly connected to the left end of the movable block (604), the left end of the movable column (606) passes through the cylinder (603) and contacts the mounting ring (401), and the cap (601) is movably connected to the fixed cylinder (3) via a fixing assembly (607).

6. The quick-detachable environmentally friendly handheld stone engraving machine according to claim 5, characterized in that: The fixing assembly (607) comprises a rotating ring (608) and a torsion spring (609); the rotating ring (608) is rotatably connected to the outer surface of the fixing cylinder (3) via a bearing; a circle of protrusions (610) is fixedly connected to the right side of the rotating ring (608); the torsion spring (609) is fixedly connected between the protrusion (610) and the outer surface of the fixing cylinder (3); a plurality of L-shaped slots (611) are evenly arranged on the right circumference of the protrusion (610); a plurality of connecting rods (612) are evenly fixedly connected to the outer circumference of the outer surface of the cover cap (601); a block (613) adapted to the L-shaped slot (611) is fixedly connected to the left end of the connecting rod (612); and a long slot (614) adapted to the connecting rod (612) is arranged on the outer surface of the fixing cylinder (3).

7. The quick-detachable environmentally friendly handheld stone engraving machine according to claim 6, characterized in that: The dust collecting assembly (7) comprises a protective cover (701) and a circular ring (702); the protective cover (701) is sleeved on the outer surface of the engraving machine body (1); the circular ring (702) is fixedly connected to the inner wall of the protective cover (701); the circular ring (702) is a hollow structure; a plurality of through holes (703) are evenly arranged on the left circumference of the circular ring (702).

8. The quick-detachable environmentally friendly handheld stone engraving machine according to claim 7, characterized in that: The connection assembly (8) comprises a connection pipe (801) and a hose (802); the left end of the connection pipe (801) is connected to the ring (702); the other end of the connection pipe (801) is connected to the hose (802); the right end of the hose (802) is connected to the fixed cylinder (3); grooves (803) are provided on both upper and lower sides of the engraving machine body (1); and the connection pipe (801) is located inside the groove (803).

9. The quick-detachable environmentally friendly handheld stone engraving machine according to claim 8, characterized in that: The limit assembly (9) comprises a fixed box (901), a button (902), a connecting plate (903) and two sliding rods (904); the fixed box (901) is fixedly connected to the fixed cylinder (3); one end of the sliding rod (904) is fixedly connected to the connecting plate (903); the other end of the sliding rod (904) passes through the upper surface of the fixed box (901) and is fixedly connected to the button (902); the sliding rod (904) is slidably connected to the fixed box (901); a second spring (905) is sleeved on the outer surface of the sliding rod (904) located inside the fixed box (901); a limit rod (906) is fixedly connected to the upper surface of the connecting plate (903); the right end of the connecting tube (801) passes through the fixed box (901); and a first limit groove (907) and a second limit groove (908) corresponding to the limit rod (906) are respectively provided on the left and right sides of the lower surface of the connecting tube (801).

10. The quick-detachable environmentally friendly handheld stone engraving machine according to claim 9, characterized in that: The lighting assembly (10) comprises a gooseneck tube (1001), a lampshade (1002) and a lighting lamp (1003); one end of the gooseneck tube (1001) is fixedly connected to the lampshade (1002); the other end of the gooseneck tube (1001) is fixedly connected to the protective cover (701); and the lighting lamp (1003) is installed inside the lampshade (1002).

Images