CN210357437U

CN210357437U - Kitchen waste crushing device with vacuum function

Info

Publication number: CN210357437U
Application number: CN201920534982.0U
Authority: CN
Inventors: 孙富强; 连加俤; 赵煜文; 胡亮
Original assignee: AIDI MACHINE (HANGZHOU) CO LTD
Current assignee: AIDI MACHINE (HANGZHOU) CO LTD
Priority date: 2019-04-19
Filing date: 2019-04-19
Publication date: 2020-04-21
Anticipated expiration: 2029-04-19

Abstract

The utility model discloses a kitchen garbage crushing device with vacuum function, which comprises a crushing part, a detection part, a liquid storage barrel, a film clamping valve and a vacuum pump station, wherein the liquid storage barrel is arranged below the crushing part, and the bottom of the right end of the liquid storage barrel is transversely connected with the film clamping valve and then connected with the vacuum pump station; the right end of the liquid storage barrel is vertically communicated with a liquid waiting pipe, and a crushing part is connected above the liquid waiting pipe; the detection part comprises an electromagnetic valve, an air pipe, an adjusting bolt, an adjusting spring, a lead screw, an adjusting sheet shell, a lower adjusting sheet, a compression diaphragm, a diaphragm shell, a top, an upper adjusting sheet, a support rod and a support plate; the crushing part comprises a feeding frame, a first scraper blade, a middle shell, a wafer, a blade, an injection head, a lower shell, a left side cover, a bearing, a connecting block, an end cover, a driven gear, a driven shaft, a driving gear, a driving shaft, a sealing cover, a right side cover and a second scraper blade. The utility model discloses can realize the shredding of rubbish from cooking, realize green emission.

Description

Kitchen waste crushing device with vacuum function

[ technical field ] A method for producing a semiconductor device

The utility model relates to a technical field of kitchen instrument, especially vacuum function's surplus rubbish in kitchen reducing mechanism's technical field.

[ background of the invention ]

The kitchen waste refers to waste generated in daily life and food processing, food service, unit catering and other activities of residents, and comprises abandoned vegetable leaves, leftovers, fruit peels, egg shells, tea leaves, bones and the like, and the main sources of the kitchen waste are household kitchens, restaurants, dining halls, markets and other industries related to food processing.

At present, kitchen garbage in life is usually stored in a garbage bag and then dumped, and few kitchen garbage are directly discharged or collected after being crushed. And the discharge mode after crushing is greener. For this reason, a device capable of pulverizing and treating kitchen waste is required.

[ Utility model ] content

The utility model aims at solving the problem in the prior art, providing a surplus rubbish reducing mechanism in kitchen of vacuum function, can realize the shredding of surplus rubbish in kitchen, realize green emission.

In order to achieve the purpose, the utility model provides a kitchen garbage crushing device with a vacuum function, which comprises a crushing part, a detection part, a liquid storage barrel, a film clamping valve and a vacuum pump station, wherein the liquid storage barrel is arranged below the crushing part, and the bottom of the right end of the liquid storage barrel is transversely connected with the film clamping valve and then connected with the vacuum pump station; the right end of the liquid storage barrel is vertically communicated with a liquid waiting pipe, and a detection part is connected above the liquid waiting pipe; the detection part comprises an electromagnetic valve, an air pipe, an adjusting bolt, an adjusting spring, a lead screw, an adjusting sheet shell, a lower adjusting sheet, a compression diaphragm, a diaphragm shell, a top, an upper adjusting sheet, a support rod and a support plate; an air pipe is connected above the equal liquid pipe, a rolling ball is arranged between the air pipe and the equal liquid pipe, a membrane shell is arranged above the air pipe, an adjusting piece shell is arranged above the membrane shell, a compression membrane is arranged between the adjusting piece shell and the membrane shell, and a top head is fixed in the middle of the compression membrane through a third fixing bolt; a lower adjusting plate is fixed on the left side inside the adjusting plate shell through a lead screw, an adjusting spring is sleeved in the middle of the lower adjusting plate, the upper end of the adjusting spring is in contact with an adjusting bolt, and the adjusting bolt is in threaded connection with the upper end face of the adjusting plate shell; an upper adjusting sheet is fixed on the right side inside the adjusting sheet shell through a lead screw, a support rod is fixed in the middle of the upper adjusting sheet, a support plate is transversely fixed below the support rod, and the support plate is fixed on the left side inside the adjusting sheet shell through a second fixing bolt; the top of the supporting rod is in contact with the adjusting bolt; the lead screws are connected with an electromagnetic valve through leads, the electromagnetic valve is externally connected with a vacuum source and the atmosphere, and the electromagnetic valve is connected with a film clamping valve through a pipeline; the crushing part comprises a feeding frame, a first scraper blade, a middle shell, a wafer, a blade, an injector head, a lower shell, a left side cover, a bearing, a connecting block, an end cover, a driven gear, a driven shaft, a driving gear, a driving shaft, a sealing cover, a right side cover and a second scraper blade, wherein the wafer and the blade are alternately arranged on the driven shaft and the driving shaft; the side surface of the lower shell is provided with an injection head, the injection head is connected with an external water source through an injection pipeline, and the injection pipeline is a circular through groove; the two ends of the middle shell are respectively connected with the left side cover and the right side cover through fourth fixing bolts; the driven shaft and the driving shaft are provided with bearings at two ends, a connecting block is arranged between the driven shaft and the driving shaft, end covers are arranged at the left ends of the driven shaft and the driving shaft, and sealing covers are arranged at the right ends of the driven shaft and the driving shaft.

Preferably, the upper end of the feeding frame is provided with a feeding hole; and a crushing liquid port is formed in the middle of the bottom of the lower shell.

Preferably, the first scraper blade and the second scraper blade are both provided with threaded holes, and scraper heads are arranged on the first scraper blade and the second scraper blade at equal intervals.

Preferably, the tool tips are uniformly distributed on the outer part of the blade along the circumference, and the middle part of the blade is provided with a through hole which is a regular hexagon through hole; the injector head is embedded in the inner side surface of the lower shell, and the injector head faces to the edge of the wafer in a tangent mode.

Preferably, an upper taper hole is formed in the inner part below the air pipe, a lower taper hole is formed in the inner part at the upper end of the liquid waiting pipe, and a rolling ball is arranged between the upper taper hole and the lower taper hole; the upper taper hole and the lower taper hole are both in conical hole surface structures.

Preferably, the lower adjusting piece is provided with a cylindrical head which is of a cylindrical protruding structure, and an adjusting spring is sleeved outside the cylindrical head; the right end of the lower adjusting piece is provided with arc surface bulges in an up-and-down symmetrical manner, and the middle part of the lower adjusting piece is provided with a square hole which is a through hole; a circular hole is formed in the middle of the left end of the lower adjusting piece and is a through hole; the lead screw penetrates through the circular hole and is then fixed on the adjusting sheet shell in a threaded mode.

Preferably, the bottom of the diaphragm shell is provided with a pipe hole which is a circular threaded hole, the outer part of the upper end of the air pipe is provided with an external thread, and the air pipe is fixed at the bottom of the diaphragm shell through the thread.

Preferably, the middle part of the supporting plate is provided with a through hole, and the middle part of the supporting plate is penetrated with a plug.

Preferably, the disc on the driven shaft is opposite to the blade on the driving shaft, and the blade on the driven shaft is opposite to the disc on the driving shaft; the number of teeth of the driven gear is more than that of the driving gear.

The utility model has the advantages that: the utility model discloses can realize the shredding of rubbish from cooking, realize green emission.

The features and advantages of the present invention will be described in detail by embodiments with reference to the accompanying drawings.

[ description of the drawings ]

FIG. 1 is a sectional view of a main view of a kitchen garbage crushing device with a vacuum function;

FIG. 2 is an enlarged view of the portion A of FIG. 1 according to the present invention;

FIG. 3 is a schematic view of an installation structure of an adjustment sheet of the kitchen garbage crushing device with vacuum function according to the present invention;

FIG. 4 is a structural diagram of a lower adjusting piece of the kitchen garbage crushing device with vacuum function of the present invention;

FIG. 5 is a schematic diagram of the engagement of the blades of the vacuum kitchen waste shredder of the present invention;

FIG. 6 is a schematic structural view of a crushing portion of the kitchen garbage crushing device with vacuum function of the present invention;

FIG. 7 is a view showing the first scraper of the vacuum kitchen garbage crusher of the present invention;

fig. 8 is a structural view of a second scraper of the kitchen garbage crushing device with vacuum function of the present invention.

In the figure: 1-feed inlet, 2-feed frame, 3-first scraper, 4-first fixing bolt, 5-middle shell, 6-round piece, 7-blade, 8-spray pipeline, 9-spray head, 10-lower shell, 11-crushed liquid port, 12-liquid storage barrel, 13-conducting wire, 14-electromagnetic valve, 15-vacuum source, 16-atmosphere, 17-isopipe, 18-pipeline, 19-film clamping valve, 20-vacuum pump station, 21-air pipe, 22-upper conical hole, 23-rolling ball, 24-lower conical hole, 25-adjusting bolt, 26-adjusting spring, 27-lead screw, 28-adjusting piece shell, 29-lower adjusting piece, 30-compression membrane, 31-membrane shell, 32-second fixing bolt, 33-pipe hole, 34-third fixing bolt, 35-top, 36-upper adjusting sheet, 37-supporting rod, 38-supporting plate, 39-arc surface bulge, 40-cylindrical head, 41-square hole, 42-circular hole, 43-knife tip, 44-through hole, 45-left side cover, 46-fourth fixing bolt, 47-bearing, 48-connecting block, 49-end cover, 50-driven gear, 51-driven shaft, 52-driving gear, 53-driving shaft, 54-sealing cover, 55-right side cover, 56-second scraping plate, 57-threaded hole and 58-scraping head.

[ detailed description ] embodiments

Referring to fig. 1-8, the utility model comprises a crushing part, a detection part, a liquid storage barrel 12, a film clamping valve 19 and a vacuum pump station 20, wherein the liquid storage barrel 12 is arranged below the crushing part, and the bottom of the right end of the liquid storage barrel 12 is transversely connected with the film clamping valve 19 and then connected with the vacuum pump station 20; a liquid equalizing pipe 17 is vertically communicated with the right end of the liquid storage barrel 12, and a detection part is connected above the liquid equalizing pipe 17; the detection part comprises an electromagnetic valve 14, an air pipe 21, an adjusting bolt 25, an adjusting spring 26, a lead screw 27, an adjusting sheet shell 28, a lower adjusting sheet 29, a compression diaphragm 30, a diaphragm shell 31, a top 35, an upper adjusting sheet 36, a support rod 37 and a support plate 38; an air pipe 21 is connected above the equal liquid pipe 17, a rolling ball 23 is arranged between the air pipe 21 and the equal liquid pipe 17, a membrane shell 31 is arranged above the air pipe 21, an adjusting sheet shell 28 is arranged above the membrane shell 31, a compression membrane 30 is arranged between the adjusting sheet shell 28 and the membrane shell 31, and a top head 35 is fixed in the middle of the compression membrane 30 through a third fixing bolt 34; a lower adjusting plate 29 is fixed on the left side inside the adjusting plate shell 28 through a lead screw 27, an adjusting spring 26 is sleeved in the middle of the lower adjusting plate 29, the upper end of the adjusting spring 26 is in contact with an adjusting bolt 25, and the adjusting bolt 25 is in threaded connection with the upper end surface of the adjusting plate shell 28; an upper adjusting sheet 36 is fixed on the right side inside the adjusting sheet shell 28 through a lead screw 27, a support rod 37 is fixed in the middle of the upper adjusting sheet 36, a support plate 38 is transversely fixed below the support rod 37, and the support plate 38 is fixed on the left side inside the adjusting sheet shell 28 through a second fixing bolt 32; the top of the supporting rod 37 is in contact with the adjusting bolt 25; the lead screws 27 are all connected with the electromagnetic valve 14 through leads 13, the electromagnetic valve 14 is externally connected with a vacuum source 15 and atmosphere 16, and the electromagnetic valve 14 is connected with the film clamping valve 19 through a pipeline 18; the crushing part comprises a feeding frame 2, a first scraper 3, a middle shell 5, a wafer 6, a blade 7, an injection head 9, a lower shell 10, a left side cover 45, a bearing 47, a connecting block 48, an end cover 49, a driven gear 50, a driven shaft 51, a driving gear 52, a driving shaft 53, a sealing cover 54, a right side cover 55 and a second scraper 56, the disc 6 and the blade 7 are alternately arranged on the driven shaft 51 and the driving shaft 53, the driven gear 50 is arranged at the right end of the driven shaft 51, the driving gear 52 is arranged at the right end of the driving shaft 53, the driving gear 52 is meshed with the driven gear 50, the side edge of the disc 6 is contacted with the first scraper 3 or the second scraper 56, the first scraper 3 and the second scraper 56 are fixed on the middle shell 5 through the first fixing bolt 4, the feeding frame 2 is arranged above the middle shell 5, the lower shell 10 is arranged below the middle shell 5, and the liquid storage barrel 12 is arranged below the lower shell 10; the side surface of the lower shell 10 is provided with an injection head 9, the injection head 9 is connected with an external water source through an injection pipeline 8, and the injection pipeline 8 is a circular through groove; the two ends of the middle shell 5 are respectively connected with the left side cover 45 and the right side cover 55 through fourth fixing bolts 46; bearings 47 are arranged at two ends of the driven shaft 51 and the driving shaft 53, a connecting block 48 is arranged between the driven shaft 51 and the driving shaft 53, an end cover 49 is arranged at the left end of the driven shaft 51 and the driving shaft 53, and a sealing cover 54 is arranged at the right end of the driven shaft 51 and the driving shaft 53.

Specifically, the upper end of the feeding frame 2 is provided with a feeding hole 1; and a crushing liquid port 11 is formed in the middle of the bottom of the lower shell 10.

Specifically, threaded holes 57 are formed in the first scraper 3 and the second scraper 56, and scraper heads 58 are arranged on the first scraper 3 and the second scraper 56 at equal intervals.

Specifically, the tool tips 43 are uniformly distributed on the outer part of the blade 7 along the circumference, the middle part of the blade 7 is provided with a through hole 44, and the through hole 44 is a regular hexagon through hole; the spray head 9 is embedded on the inner side surface of the lower shell 10, and the spray head 9 faces to be tangent with the edge of the wafer 6.

Specifically, an upper taper hole 22 is formed in the lower inner portion of the air pipe 21, a lower taper hole 24 is formed in the upper end of the liquid waiting pipe 17, and a rolling ball 23 is arranged between the upper taper hole 22 and the lower taper hole 24; the upper taper hole 22 and the lower taper hole 24 are both in a conical hole surface structure.

Specifically, the lower adjusting plate 29 is provided with a cylindrical head 40, the cylindrical head 40 is of a cylindrical convex structure, and an adjusting spring 26 is sleeved outside the cylindrical head 40; the right end of the lower adjusting piece 29 is provided with arc surface bulges 39 in an up-and-down symmetrical manner, the middle part of the lower adjusting piece 29 is provided with a square hole 41, and the square hole 41 is a through hole; a circular hole 42 is formed in the middle of the left end of the lower adjusting piece 29, and the circular hole 42 is a through hole; the lead screw 27 is threaded through the circular hole 42 and then fixed to the tab housing 28.

Specifically, the bottom of the diaphragm shell 31 is provided with a pipe hole 33, the pipe hole 33 is a circular threaded hole, the outer part of the upper end of the air pipe 21 is provided with an external thread, and the bottom of the diaphragm shell 31 is fixed with the air pipe 21 through the thread.

Specifically, a through hole is formed in the middle of the supporting plate 38, and a plug 35 penetrates through the middle of the supporting plate 38.

Specifically, the wafer 6 on the driven shaft 51 is opposite to the blade 7 on the driving shaft 53, and the blade 7 on the driven shaft 51 is opposite to the wafer 6 on the driving shaft 53; the driven gear 50 has a larger number of teeth than the driving gear 52.

The utility model discloses the working process:

the utility model relates to a kitchen garbage smashing device with a vacuum function, which is explained in the working process with the attached drawings.

Kitchen waste enters from the feeding hole 1, a power source is externally connected through a driving shaft 53, the driving shaft 53 and a blade 7 on a driven shaft 51 cut the kitchen waste, gears on the driving shaft 53 and the driven shaft 51 are different in size, and the two shafts rotate at a different speed; in the cutting process, fibrous garbage is easy to remain on the wafer 6, the wafer 6 is scraped clean under the action of the first scraper 3 and the second scraper 56, in addition, the wafer 6 is washed by the injection head 9 externally connected with a water source through the injection pipeline 8, and the externally connected water source is tap water or other water sources with pressure; after being crushed, the kitchen waste enters a liquid storage barrel 12 through a crushing liquid port 11; wait the liquid level of liquid pipe 17 and be equal to liquid storage barrel 12, when inside too much, wait the gas in the liquid pipe 17 and can compress, the gas compression in upper portion trachea 21 simultaneously, compression diaphragm 30 micro deformation to make top 35 push up down adjustment sheet 29, make it and the contact of last adjustment sheet 36, then make lead screw 27 pass through wire 13 and formed the return circuit, solenoid valve 14 effect, make vacuum source 15 and press from both sides membrane valve 19 and communicate, thereby open and press from both sides membrane valve 19, make the liquid kitchen garbage in the liquid storage barrel 12 enter into to go in the vacuum pump station 20. When the liquid level in the liquid storage barrel 12 drops and the liquid pipe 17 also drops, the compression diaphragm 30 is restored, so that the electromagnetic valve 14 is closed, the atmosphere 16 is communicated, and the film clamping valve 19 is closed.

The air is compressed in the air pipe 21, and the force applied to the compression diaphragm 30 is related to the liquid level force of the liquid storage barrel 12.

The adjusting bolt 25 is used for readjusting the gap after the upper adjusting sheet 36 and the lower adjusting sheet 29 deform; the ball 23 is filled with liquid in the liquid waiting tube 17, and the ball stops rising due to being pushed against the lower part of the air tube 21 in the rising process.

The utility model discloses, can realize the shredding of rubbish from cooking, realize green emission.

The above-mentioned embodiment is right the utility model discloses an explanation, it is not right the utility model discloses a limited, any right the scheme after the simple transform of the utility model all belongs to the protection scope of the utility model.

Claims

1. The utility model provides a kitchen garbage reducing mechanism of vacuum function which characterized in that: the device comprises a crushing part, a detection part, a liquid storage barrel (12), a film clamping valve (19) and a vacuum pump station (20), wherein the liquid storage barrel (12) is arranged below the crushing part, and the bottom of the right end of the liquid storage barrel (12) is transversely connected with the film clamping valve (19) and then connected with the vacuum pump station (20); a liquid equalizing pipe (17) is vertically communicated with the right end of the liquid storage barrel (12), and a crushing part detection part is connected above the liquid equalizing pipe (17); the detection part comprises an electromagnetic valve (14), an air pipe (21), an adjusting bolt (25), an adjusting spring (26), a lead screw (27), an adjusting sheet shell (28), a lower adjusting sheet (29), a compression diaphragm (30), a diaphragm shell (31), a top head (35), an upper adjusting sheet (36), a support rod (37) and a support plate (38); an air pipe (21) is connected above the equal liquid pipe (17), a rolling ball (23) is arranged between the air pipe (21) and the equal liquid pipe (17), a membrane shell (31) is arranged above the air pipe (21), an adjusting sheet shell (28) is arranged above the membrane shell (31), a compression membrane (30) is arranged between the adjusting sheet shell (28) and the membrane shell (31), and a top head (35) is fixed in the middle of the compression membrane (30) through a third fixing bolt (34); a lower adjusting sheet (29) is fixed on the left side inside the adjusting sheet shell (28) through a lead screw (27), an adjusting spring (26) is sleeved in the middle of the lower adjusting sheet (29), the upper end of the adjusting spring (26) is in contact with an adjusting bolt (25), and the adjusting bolt (25) is in threaded connection with the upper end face of the adjusting sheet shell (28); an upper adjusting sheet (36) is fixed on the right side inside the adjusting sheet shell (28) through a lead screw (27), a support rod (37) is fixed in the middle of the upper adjusting sheet (36), a support plate (38) is transversely fixed below the support rod (37), and the support plate (38) is fixed on the left side inside the adjusting sheet shell (28) through a second fixing bolt (32); the top of the supporting rod (37) is in contact with the adjusting bolt (25); the lead screws (27) are connected with the electromagnetic valve (14) through leads (13), the electromagnetic valve (14) is externally connected with a vacuum source (15) and atmosphere (16), and the electromagnetic valve (14) is connected with the film clamping valve (19) through a pipeline (18); the crushing part comprises a feeding frame (2), a first scraper (3), a middle shell (5), a wafer (6), a blade (7), an injection head (9), a lower shell (10), a left side cover (45), a bearing (47), a connecting block (48), an end cover (49), a driven gear (50), a driven shaft (51), a driving gear (52), a driving shaft (53), a sealing cover (54), a right side cover (55) and a second scraper (56), wherein the wafer (6) and the blade (7) are alternately arranged on the driven shaft (51) and the driving shaft (53), the driven gear (50) is arranged at the right end of the driven shaft (51), the driving gear (52) is arranged at the right end of the driving shaft (53), the driving gear (52) is meshed with the driven gear (50), the side edge of the wafer (6) is contacted with the first scraper (3) or the second scraper (56), the first scraper (3) and the second scraper (56) are fixed on the middle shell (5) through a first fixing bolt (, a feeding frame (2) is arranged above the middle shell (5), a lower shell (10) is arranged below the middle shell (5), and a liquid storage barrel (12) is arranged below the lower shell (10); an injection head (9) is arranged on the side surface of the lower shell (10), the injection head (9) is connected with an external water source through an injection pipeline (8), and the injection pipeline (8) is a circular through groove; two ends of the middle shell (5) are respectively connected with the left side cover (45) and the right side cover (55) through fourth fixing bolts (46); both ends of the driven shaft (51) and the driving shaft (53) are provided with bearings (47), a connecting block (48) is arranged between the driven shaft (51) and the driving shaft (53), the left ends of the driven shaft (51) and the driving shaft (53) are provided with end covers (49), and the right ends of the driven shaft (51) and the driving shaft (53) are provided with sealing covers (54).

2. The kitchen waste crushing device with the vacuum function as claimed in claim 1, wherein: the upper end of the feeding frame (2) is provided with a feeding hole (1); and a crushing liquid port (11) is formed in the middle of the bottom of the lower shell (10).

3. The kitchen waste crushing device with the vacuum function as claimed in claim 1, wherein: threaded holes (57) are formed in the first scraping plate (3) and the second scraping plate (56), and scraper heads (58) are arranged on the first scraping plate (3) and the second scraping plate (56) at equal intervals.

4. The kitchen waste crushing device with the vacuum function as claimed in claim 1, wherein: the outer part of the blade (7) is uniformly provided with tool tips (43) along the circumference, the middle part of the blade (7) is provided with a through hole (44), and the through hole (44) is a regular hexagon through hole; the injection head (9) is embedded on the inner side surface of the lower shell (10), and the direction of the injection head (9) is tangential to the edge of the wafer (6).

5. The kitchen waste crushing device with the vacuum function as claimed in claim 1, wherein: an upper taper hole (22) is formed in the lower inner part of the air pipe (21), a lower taper hole (24) is formed in the upper end of the liquid waiting pipe (17), and a rolling ball (23) is arranged between the upper taper hole (22) and the lower taper hole (24); the upper taper hole (22) and the lower taper hole (24) are both in a conical hole surface structure.

6. The kitchen waste crushing device with the vacuum function as claimed in claim 1, wherein: the lower adjusting sheet (29) is provided with a cylindrical head (40), the cylindrical head (40) is of a cylindrical convex structure, and an adjusting spring (26) is sleeved outside the cylindrical head (40); the right end of the lower adjusting sheet (29) is provided with arc surface bulges (39) in an up-and-down symmetrical manner, the middle part of the lower adjusting sheet (29) is provided with a square hole (41), and the square hole (41) is a through hole; a circular hole (42) is formed in the middle of the left end of the lower adjusting piece (29), and the circular hole (42) is a through hole; the lead screw (27) penetrates through the circular hole (42) and then is fixed on the adjusting sheet shell (28) in a threaded mode.

7. The kitchen waste crushing device with the vacuum function as claimed in claim 1, wherein: the diaphragm casing (31) bottom is equipped with tube hole (33), and tube hole (33) are circular screw hole, and trachea (21) upper end outside is equipped with the external screw thread, and diaphragm casing (31) bottom threaded fixation has trachea (21).

8. The kitchen waste crushing device with the vacuum function as claimed in claim 1, wherein: the middle part of the supporting plate (38) is provided with a through hole, and the middle part of the supporting plate (38) is penetrated with a top (35).

9. The kitchen waste crushing device with the vacuum function as claimed in claim 1, wherein: the circular sheet (6) on the driven shaft (51) is opposite to the blade (7) on the driving shaft (53), and the blade (7) on the driven shaft (51) is opposite to the circular sheet (6) on the driving shaft (53); the number of teeth of the driven gear (50) is greater than that of the driving gear (52).