1. The utility model provides a blade dissection device for bioengineering which characterized in that, including:

the device comprises a base (1) and a workbench (2), wherein the workbench (2) is arranged on one side of the base (1);

the mounting rack (3), the mounting rack (3) is installed on the workbench (2);

the sliding rods (4), the sliding rods (4) are symmetrically and slidably mounted on the mounting rack (3);

the cutter (5), the cutter (5) is installed between two sliding rods (4);

the first return spring (6), the first return spring (6) is installed between the cutter (5) and the mounting rack (3), and the first return spring is sleeved on the sliding rod (4);

the material groove plate (7), the material groove plate (7) is arranged on the workbench (2) in a sliding manner;

the supporting plate (8), the supporting plate (8) is installed on the trough plate (7) in a sliding manner;

the ejector rods (9), the ejector rods (9) are symmetrically and slidably arranged on the workbench (2) and are fixedly connected with the supporting plate (8);

the driving device (10) is arranged between the mounting frame (3) and the sliding rod (4) and is used for providing power;

and the feeding device (11) is arranged between the driving device (10) and the workbench (2) and the trough plate (7) and is used for moving the blades.

2. A device for cutting blades for bioengineering according to claim 1, wherein the driving device (10) comprises:

the motor (101), the motor (101) is installed on the mounting rack (3);

the first rotating shaft (102), the first rotating shaft (102) is installed on the output shaft of the motor (101);

the second rotating shaft (103), the second rotating shaft (103) is rotatably arranged on the mounting rack (3);

the first transmission assembly (104), the first transmission assembly (104) is installed between the first rotating shaft (102) and the second rotating shaft (103);

the cam (105), the cam (105) is installed on the second rotating shaft (103) symmetrically;

the first rotating disc (106), the first rotating disc (106) is symmetrically and rotatably arranged on the second rotating shaft (103);

a first cam lever (107), the first cam lever (107) being mounted on the first rotary disk (106);

and the hinge plate (108) is rotatably arranged on the first convex rod (107) and is rotatably connected with the sliding rod (4).

3. A device for cutting blades for bioengineering according to claim 2, wherein the feeding device (11) comprises:

the support frame (111), the support frame (111) is installed on the work bench (2);

the third rotating shaft (112), the third rotating shaft (112) is installed on the supporting frame (111) in a rotating mode;

the second transmission assembly (113), the second transmission assembly (113) is installed between the first rotating shaft (102) and the third rotating shaft (112);

the fourth rotating shaft (114), the fourth rotating shaft (114) is installed on the supporting frame (111) in a rotating mode;

the bevel gear set (115), the bevel gear set (115) is installed between the third rotating shaft (112) and the fourth rotating shaft (114);

a second rotating disk (116), the second rotating disk (116) being mounted on the fourth rotating shaft (114);

a sliding column (117), the sliding column (117) being mounted on the second rotating disc (116);

the connecting plate (119), the connecting plate (119) is installed on the trough plate (7);

the slotted plate (118) is arranged on the connecting plate (119), and the slotted plate (118) is sleeved on the sliding column (117) and is in sliding fit with the sliding column.

4. The device for cutting the blades for the bioengineering according to claim 3, further comprising a blanking device (12), wherein the blanking device (12) comprises:

the vertical plate (121), the vertical plate (121) is symmetrically installed on the workbench (2);

the hopper (122), the hopper (122) is installed between two vertical plates (121);

the sliding plate (123), the sliding plate (123) is installed on the hopper (122) in a sliding way;

the movable plate (124), the movable plate (124) is symmetrically installed on the sliding plate (123);

the fixing plate (125), the fixing plate (125) is symmetrically installed on the hopper (122);

and the second return spring (126), and the second return spring (126) is installed between the fixed plate (125) and the movable plate (124).

5. The device for cutting blades for bioengineering according to claim 4, further comprising a material collecting device (13), wherein the material collecting device (13) comprises:

the vertical blocks (131), the vertical blocks (131) are symmetrically arranged on the workbench (2);

the fifth rotating shaft (132), the fifth rotating shaft (132) is rotatably installed on the vertical block (131);

the third transmission assembly (133), the third transmission assembly (133) is installed between the fifth rotating shaft (132) and the third rotating shaft (112);

a third rotary disc (134), the third rotary disc (134) being mounted on the fifth rotary shaft (132);

a second cam (135), the second cam (135) being mounted on the third rotary disc (134);

and the rotating brush (136), and the rotating brush (136) is rotatably arranged between the two second convex rods (135).

6. The device for cutting the blades for the bioengineering according to claim 5, further comprising a suction device (14), wherein the suction device (14) comprises:

the air pump (141), the air pump (141) is installed on the worktable (2);

the large hose (142), the large hose (142) is installed on the air pump (141) and communicated with the air pump;

the ventilation box (143), ventilation box (143) are installed on big hose (142) and are communicated, and little hose (144) run through layer board (8) and its fixed connection.

7. The device for cutting the blades for the bioengineering according to claim 6, further comprising a gas cut-off device (15), wherein the gas cut-off device (15) comprises:

the special-shaped contact plate (151), the special-shaped contact plate (151) is installed on the ventilation box (143);

the sliding rods (152), the sliding rods (152) are symmetrically arranged on the workbench (2);

the tube pressing plate (153) is arranged between the two sliding rods in a sliding mode, the tube pressing plate (153) is matched with the special-shaped contact plate (151), and the tube pressing plate (153) is also matched with the large hose (142);

and the third return spring (154), and the third return spring (154) is wound between the tube pressing plate (153) and the sliding rod (152).

8. The device for cutting blades for bioengineering according to claim 7, further comprising an ash collector (16), wherein the ash collector (16) comprises:

the fixing frame (161), the fixing frame (161) is installed on the workbench (2);

the sliding groove plate (162), the sliding groove plate (162) is installed on the fixing frame (161) in a sliding way;

and the filter screen (163) is installed on the sliding groove plate (162).

Background

When the blade needs to be researched, the blade needs to be cut into sections. At present, most of people manually cut the blade, firstly, people place the blade on a wood board, then press the blade with the hand, and then hold the knife with the other hand to repeatedly move to cut the blade.

Therefore, the blade cutting device for bioengineering, which can rapidly cut the blade, is time-saving, labor-saving, high in working efficiency and not easy to cut the hand, is needed to be developed to solve the problems in the prior art.

Disclosure of Invention

In order to overcome because the hand need not stop the removal, time one is long, and is more hard, work efficiency is still low, and people need the hand directly to press the blade, the shortcoming of easy handle incised wound, technical problem: the utility model provides a cut segment device for bioengineering that cuts the blade fast, labour saving and time saving, work efficiency is high, and is difficult for cutting the hand.

The technical scheme is as follows: a leaf segmenting device for bioengineering comprises: the device comprises a base and a workbench, wherein the workbench is arranged on one side of the base; the mounting rack is mounted on the workbench; the sliding rods are symmetrically and slidably arranged on the mounting rack; the cutter is arranged between the two sliding rods; the first return spring is arranged between the cutter and the mounting frame and sleeved on the sliding rod; the trough plate is arranged on the workbench in a sliding manner; the supporting plate is arranged on the material groove plate in a sliding manner; the ejector rods are symmetrically and slidably arranged on the workbench and fixedly connected with the supporting plate; the driving device is arranged between the mounting frame and the sliding rod and used for providing power; and the feeding device is arranged between the driving device and the workbench and between the driving device and the trough plate and is used for moving the blades.

Optionally, the driving device comprises: the motor is arranged on the mounting frame; the first rotating shaft is arranged on an output shaft of the motor; the second rotating shaft is rotatably arranged on the mounting frame; the first transmission assembly is arranged between the first rotating shaft and the second rotating shaft; the cams are symmetrically arranged on the second rotating shaft; the first rotating disc is symmetrically and rotatably arranged on the second rotating shaft; the first convex rod is arranged on the first rotating disc; and the hinged plate is rotatably arranged on the first convex rod and is rotatably connected with the sliding rod.

Optionally, the feeding device comprises: the support frame is arranged on the workbench; the third rotating shaft is rotatably arranged on the supporting frame; the second transmission assembly is arranged between the first rotating shaft and the third rotating shaft; the fourth rotating shaft is rotatably arranged on the supporting frame; the bevel gear set is arranged between the third rotating shaft and the fourth rotating shaft; the second rotating disc is arranged on the fourth rotating shaft; the sliding column is arranged on the second rotating disc; the connecting plate is arranged on the trough plate; the straight groove plate is arranged on the connecting plate and sleeved on the sliding column to be in sliding fit with the sliding column.

Optionally, still including unloader, unloader including: the vertical plates are symmetrically arranged on the workbench; the hopper is arranged between the two vertical plates; the sliding plate is slidably mounted on the hopper; the movable plates are symmetrically arranged on the sliding plate; the fixed plates are symmetrically arranged on the hopper; and the second return spring is arranged between the fixed plate and the movable plate.

Optionally, still include the device that gathers materials, the device that gathers materials includes: the vertical blocks are symmetrically arranged on the workbench; the fifth rotating shaft is rotatably arranged on the vertical block; the third transmission assembly is arranged between the fifth rotating shaft and the third rotating shaft; the third rotating disc is arranged on the fifth rotating shaft; the second convex rod is arranged on the third rotating disc; and the rotating brush is rotatably arranged between the two second convex rods.

Optionally, still including inhaling the material device, inhale the material device including: the air pump is arranged on the workbench; the large hose is arranged on the air pump and communicated with the air pump; the ventilation box is arranged on the large hose and communicated with the large hose, and the small hose penetrates through the supporting plate and is fixedly connected with the supporting plate.

Optionally, still include the gas cut-off device, the gas cut-off device includes: the special-shaped contact plate is arranged on the ventilation box; the sliding rods are symmetrically arranged on the workbench; the tube pressing plate is arranged between the two sliding rods in a sliding mode and matched with the special-shaped contact plate, and the tube pressing plate is also matched with the large hose; and the third return spring is wound between the tube pressing plate and the sliding rod.

Optionally, the dust collecting device is further included, and the dust collecting device includes: the fixing frame is arranged on the workbench; the sliding groove plate is arranged on the fixed frame in a sliding manner; and the filter screen is arranged on the sliding groove plate.

The invention has the beneficial effects that:

1. through placing the blade on the layer board, starter motor drives first pivot reversal, and first pivot reversal makes the cutter reciprocate and carries out the dissection to the blade, and simultaneously, first pivot reversal drives the third pivot reversal through second transmission assembly, and the silo board drives the blade through the layer board and moves right, takes off the blade again and carries out subsequent processing, so, can carry out the dissection to the blade fast, labour saving and time saving, work efficiency is high.

2. Through the effect of the device that gathers materials, can dial the blade that the segmentation was accomplished into collecting container, so, can make things convenient for people to collect the blade that the segmentation was accomplished.

3. Through the effect of inhaling the material device, can adsorb the blade, so, take place to remove when can avoiding the blade dissection.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a partial perspective view of the present invention.

Fig. 3 is a partial sectional structure diagram of the present invention.

Fig. 4 is a schematic perspective view of the driving device of the present invention.

Fig. 5 is a schematic partial perspective view of the driving device of the present invention.

Fig. 6 is a schematic cross-sectional structure diagram of the feeding device of the present invention.

Fig. 7 is a schematic cross-sectional structure diagram of the blanking device of the present invention.

Fig. 8 is a schematic perspective view of the collecting device of the present invention.

Fig. 9 is a partial perspective view of the collecting device of the present invention.

Fig. 10 is a schematic perspective view of the suction device and the air shutoff device of the present invention.

Fig. 11 is a schematic perspective view of the ash collecting device of the present invention.

Description of reference numerals: 1_ base, 2_ table, 3_ mounting frame, 4_ sliding rod, 5_ cutter, 6_ first return spring, 7_ chute plate, 8_ pallet, 9_ ram, 10_ driving device, 101_ motor, 102_ first rotating shaft, 103_ second rotating shaft, 104_ first transmission component, 105_ cam, 106_ first rotating disk, 107_ first convex rod, 108_ hinge plate, 11_ feeding device, 111_ support frame, 112_ third rotating shaft, 113_ second transmission component, 114_ fourth rotating shaft, 115_ bevel gear set, 116_ second rotating disk, 117_ sliding column, 118_ slotted plate, 119_ connecting plate, 12_ blanking device, 121_ vertical plate, 122_ hopper, 123_ sliding plate, 124_ movable plate, 125_ fixed plate, 126_ second return spring, 13_ collecting device, 131_ vertical block, 132_ fifth rotating shaft, 133_ third transmission component, 134_ third rotating disk, 135_ second convex rod, 136_ rotary brush, 14_ suction device, 141_ suction pump, 142_ large hose, 143_ ventilation box, 144_ small hose, 15_ air cut-off device, 151_ special-shaped contact plate, 152_ slide bar, 153_ pressure plate, 154_ third return spring, 16_ dust collecting device, 161_ fixed frame, 162_ sliding groove plate and 163_ filter screen.

Detailed Description

The following description is only a preferred embodiment of the present invention, and does not limit the scope of the present invention.

Example 1

A blade cutting device for bioengineering is disclosed, as shown in figure 1-figure 6, comprising a base 1, a workbench 2, a mounting frame 3, a sliding rod 4, a cutter 5, a first reset spring 6, a trough plate 7, a supporting plate 8, a top rod 9, a driving device 10 and a feeding device 11, wherein the workbench 2 is fixedly connected with the top of the base 1, the mounting frame 3 is fixedly connected with the right side of the top of the workbench 2, the sliding rod 4 is symmetrically and slidably arranged on the front and back of the mounting frame 3, the cutter 5 is fixedly connected between the bottom ends of the sliding rods 4 at the front and back sides, the first reset spring 6 is fixedly connected between the top of the cutter 5 and the inner side surface of the mounting frame 3, the sliding rod 4 is sleeved with the first reset spring 6, the trough plate 7 is slidably arranged on the mounting frame 3, the supporting plate 8 is slidably arranged in the trough plate 7, the top end of the top rod 9 is fixedly connected with the bottom of the supporting plate 8, the driving device 10 is arranged between the mounting frame 3 and the sliding rod 4, a feeding device 11 is arranged between the driving device 10 and the workbench 2 and the trough plate 7.

Drive arrangement 10 is including motor 101, first pivot 102, second pivot 103, first transmission assembly 104, cam 105, first pivot 106, first nose bar 107 and articulated slab 108, the rigid coupling in the left part of mounting bracket 3 has motor 101, be connected with first pivot 102 on the output shaft of motor 101, the middle rotary type in top is equipped with second pivot 103 in the mounting bracket 3, second pivot 103 middle part circumference and the anterior circumference of first pivot 102 are connected with first transmission assembly 104, the symmetrical rigid coupling in the front and back has cam 105 in second pivot 103 circumference, the symmetrical rotary type in the front and back is equipped with first pivot 106 in second pivot 103 circumference, first pivot 106 lateral surface upper portion rigid coupling has first nose bar 107, first nose bar 107 outside circumference rotary type is equipped with articulated slab 108, articulated slab 108 lower part is connected with 4 upper portions rotation of slide bar.

The feeding device 11 comprises a supporting frame 111, a third rotating shaft 112, a second transmission assembly 113, a fourth rotating shaft 114, a bevel gear set 115, a second rotating disc 116, a sliding column 117, a slotted plate 118 and a connecting plate 119, a support frame 111 is fixedly connected to the left side of the top of the workbench 2, a third rotating shaft 112 is rotatably arranged on the upper portion of the support frame 111, a second transmission assembly 113 is connected between the circumferential direction of the rear portion of the third rotating shaft 112 and the circumferential direction of the rear portion of the first rotating shaft 102, a fourth rotating shaft 114 is rotatably arranged on the middle portion of the support frame 111, a bevel gear set 115 is connected between the circumferential direction of the upper portion of the fourth rotating shaft 114 and the circumferential direction of the rear portion of the third rotating shaft 112, a second rotating disc 116 is fixedly connected to the circumferential direction of the lower portion of the fourth rotating shaft 114, a sliding column 117 is fixedly connected to the rear side of the bottom of the second rotating disc 116, a connecting plate 119 is fixedly connected to the middle portion of the left side of the trough plate 7, a straight-line-shaped trough plate 118 is fixedly connected to the left side of the connecting plate 119, and the straight-line-shaped trough plate 118 is sleeved on the sliding column 117 and is in sliding fit with the sliding column.

Firstly, an operator puts a blade on the supporting plate 8, starts the motor 101, the motor 101 drives the first rotating shaft 102 to rotate reversely, the first rotating shaft 102 rotates reversely to drive the first transmission component 104 to rotate reversely, the first transmission component 104 rotates reversely to drive the second rotating shaft 103 to rotate reversely, the second rotating shaft 103 rotates reversely to drive the cam 105 to rotate reversely, the cam 105 rotates reversely to contact with the first convex rod 107, the cam 105 drives the first convex rod 107 to rotate reversely, the first convex rod 107 rotates reversely to drive the hinged plate 108 to move up and down, the hinged plate 108 moves up and down to drive the sliding rod 4 to move up and down, the sliding rod 4 drives the cutter 5 to move up and down through the first return spring 6, the cutter 5 moves down to cut the blade, meanwhile, the first rotating shaft 102 also drives the second transmission component 113 to rotate reversely, the second transmission component 113 rotates reversely to drive the third rotating shaft 112 to rotate reversely, the third rotating shaft 112 rotates reversely to drive the fourth rotating shaft 114 through the bevel gear set 115, the fourth rotating shaft 114 rotates positively to drive the second rotating disc 116 to rotate positively, the second rotating disc 116 rotates positively to drive the sliding column 117 to rotate positively, the sliding column 117 rotates positively to drive the linear groove plate 118 to move leftwards and rightwards, the linear groove plate 118 moves leftwards and rightwards to drive the connecting plate 119 to move leftwards and rightwards, the connecting plate 119 moves leftwards and rightwards to drive the material groove plate 7 to move leftwards and rightwards, the material groove plate 7 moves leftwards to drive the ejector rod 9 to move leftwards, when the ejector rod 9 moves rightwards to the groove convex part of the mounting frame 3, the mounting frame 3 enables the ejector rod 9 to move upwards, the ejector rod 9 moves upwards to drive the supporting plate 8 to move upwards, the cut blades are taken down to perform subsequent treatment, the material groove plate 7 moves leftwards to enable the ejector rod 9 to move to the groove concave part of the mounting frame 3, the ejector rod 9 also drives the supporting plate 8 to move downwards to reset, a new blade is placed on the supporting plate 8 to perform cutting, so relapse, can constantly carry out the dissection to the blade, when whole blade dissection completion back, close motor 101, cutter 5 also stops reciprocating.

Example 2

On the basis of embodiment 1, as shown in fig. 1, 7, 8 and 9, the blanking device 12 further includes a vertical plate 121, a hopper 122, a sliding plate 123, a movable plate 124, a fixed plate 125 and a second return spring 126, the vertical plate 121 is symmetrically and fixedly connected to the front and back of the top of the worktable 2, the hopper 122 is fixedly connected between the inner sides of the upper portions of the vertical plates 121 on the front and back sides, the sliding plate 123 is slidably arranged on the lower portion of the hopper 122, the movable plate 124 is fixedly connected to the front and back sides of the right portion of the sliding plate 123, the fixed plate 125 is fixedly connected to the left side of the lower portions of the front and back sides of the hopper 122, and the second return spring 126 is fixedly connected between the right side of the fixed plate 125 and the left side of the movable plate 124.

Still including the device 13 that gathers materials, the device 13 that gathers materials is including founding piece 131, fifth pivot 132, third drive assembly 133, third rolling disc 134, second protruding pole 135 and rotation brush 136, the symmetry rigid coupling has founding piece 131 around the 2 top right sides of workstation, found piece 131 upper portion rotary type and be equipped with fifth pivot 132, be connected with third drive assembly 133 between the inboard circumference of fifth pivot 132 and the third pivot 112 outside circumference, the inboard circumference rigid coupling of fifth pivot 132 has third rolling disc 134, third rolling disc 134 medial surface upper portion rigid coupling has second protruding pole 135, the rotary type is equipped with rotation brush 136 between the front and back both sides second protruding pole 135.

Firstly, an operator places a proper amount of blades in the hopper 122, the sliding plate 123 limits the blades, when the motor 101 is started, the chute plate 7 moves leftwards to contact with the sliding plate 123, the chute plate 7 drives the sliding plate 123 to move leftwards, the sliding plate 123 moves leftwards to drive the movable plate 124 to move leftwards, the second return spring 126 is compressed, the sliding plate 123 moves leftwards to enable the blades to fall into the chute plate 7 to be cut into sections, then the chute plate 7 moves rightwards to reset to be separated from the sliding plate 123, and under the action of the second return spring 126, the movable plate 124 also drives the sliding plate 123 to move rightwards to reset to limit the remaining blades, so that people do not need to repeatedly place the blades into the chute plate 7.

Firstly, an operator places a collecting container on the right side of the workbench 2, when the motor 101 is started, the third rotating shaft 112 rotates reversely to drive the third transmission assembly 133 to rotate reversely, the third transmission assembly 133 rotates reversely to drive the fifth rotating shaft 132 to rotate reversely, the fifth rotating shaft 132 rotates reversely to drive the third rotating disc 134 to rotate reversely, the third rotating disc 134 rotates reversely to drive the second convex rod 135 to rotate reversely, the second convex rod 135 rotates reversely to drive the rotating brush 136 to rotate reversely, the rotating brush 136 rotates reversely to dial the cut blades into the collecting container, after all the blades are cut, the collecting container is taken up to perform subsequent treatment on the blades, and therefore, the blades can be conveniently collected by people.

Example 3

On the basis of the embodiments 1 and 2, as shown in fig. 10 and 11, the air suction device 14 is further included, the air suction device 14 includes an air suction pump 141, a large hose 142, an air vent box 143 and a small hose 144, the air suction pump 141 is arranged in the middle of the inner side surface of the workbench 2, the large hose 142 is arranged on the air suction pump 141 and communicated with the air vent box 143, the small hose 144 is arranged on the air vent box 143 at intervals and communicated with the air vent box 143, and the small hose 144 penetrates through the supporting plate 8 and is fixedly connected with the supporting plate.

The air cut-off device 15 is further included, the air cut-off device 15 comprises a special-shaped contact plate 151, sliding rods 152, a tube pressing plate 153 and a third return spring 154, the special-shaped contact plate 151 is circumferentially arranged on the upper portion of the ventilation box 143, the sliding rods 152 are symmetrically and fixedly connected to the front portion and the rear portion of the right portion of the inner side face of the workbench 2, the tube pressing plate 153 is arranged between the sliding rods 152 on the front side and the rear side in a sliding mode, the tube pressing plate 153 is matched with the special-shaped contact plate 151, the tube pressing plate 153 is further matched with the large hose 142, and the third return spring 154 is wound between the bottom of the tube pressing plate 153 and the lower portion of the sliding rods 152.

The ash collecting device 16 is further included, the ash collecting device 16 comprises a fixing frame 161, a sliding groove plate 162 and a filter screen 163, the fixing frame 161 is fixedly connected to the left portion of the inner side face of the workbench 2, the sliding groove plate 162 is arranged on the left portion of the fixing frame 161 in a sliding mode, and the filter screen 163 is arranged on the inner side face of the sliding groove plate 162.

When the blade is cut, the air pump 141 is started to operate, the air pump 141 operates to suck air through the large hose 142, the small hose 144 adsorbs the blade placed on the supporting plate 8, and after all the blade cuts are completed, the air pump 141 is closed to stop sucking air, so that the blade can be prevented from moving during cutting.

When the blades are cut into sections, the supporting plate 8 moves rightwards to drive the small hose 144 to move rightwards, the small hose 144 moves rightwards to drive the ventilating box 143 to move rightwards, the ventilating box 143 moves rightwards to drive the special-shaped contact plate 151 to move rightwards, the special-shaped contact plate 151 moves rightwards to drive the tube pressing plate 153 to move upwards, the third return spring 154 is stretched, the tube pressing plate 153 moves upwards to limit the large hose 142, the small hose 144 stops adsorbing the blades, when the supporting plate 8 drives the small hose 144 to move leftwards, the special-shaped contact plate 151 moves leftwards to reset, the tube pressing plate 153 moves downwards to reset to stop limiting the large hose 142 due to the action of the third return spring 154, after all the blades are cut into sections, the supporting plate 8 stops driving the ventilating box 143 to move leftwards and rightwards through the small hose 144, and the tube pressing plate 153 stops moving upwards and downwards. Thus, the rotating brush 136 can be prevented from being difficult to pull down the well-cut blade.

When the air pump 141 is operated, the filter screen 163 screens air, and when excessive impurities or dust are remained on the filter screen 163, the sliding groove plate 162 is taken down to clean the filter screen 163, and then the sliding groove plate 162 is put back to the fixing frame 161. Thus, foreign materials or dust can be prevented from entering the suction pump 141.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.