CN111397355A

CN111397355A - Fixed auxiliary drying device for paddy

Info

Publication number: CN111397355A
Application number: CN202010213213.8A
Authority: CN
Inventors: 马新生
Original assignee: Fuyang Huizhongxin Automation Technology Co ltd
Current assignee: Fuyang Huizhongxin Automation Technology Co ltd
Priority date: 2020-03-24
Filing date: 2020-03-24
Publication date: 2020-07-10
Anticipated expiration: 2040-03-24
Also published as: CN111397355B

Abstract

The invention discloses a fixed auxiliary airing device for paddy in the field of paddy airing, which comprises a main board, a moving part, a mounting part, an aggregation part, a reset part, a blocking part, a driving part and a fixing part, wherein a through rectangular groove is formed in the center of the main board, the moving part comprises a connecting rod, a bottom board and a moving wheel, the mounting part comprises a sliding groove and a moving groove, the aggregation part comprises a sliding plate, an aggregation toothed plate, an aggregation rack, a connecting plate, a first aggregation plate, a second aggregation plate, a first leak hole, a second leak hole and an aggregation baffle, the reset part comprises a moving plate, a telescopic main board, a piston plate, a jack, a vertical plate, an L-shaped sliding groove, a sliding block, a reset toothed plate, a reset toothed bar, a L-shaped limiting block and an inserting rod, the blocking part comprises a baffle, the driving part comprises a driving gear and a driving rod, and the fixing part comprises a through.

Description

Fixed auxiliary drying device for paddy

Technical Field

The invention relates to the field of rice airing, in particular to a fixed type auxiliary airing device for rice.

Background

The paddy is a rice subspecies of oryza of the genus oryza of the family Gramineae, which is obtained by removing the husk of rice. China is one of the countries with the longest history of rice cultivation and the most abundant genetic resources of rice, and ancient cultivated rice specimens which are located in the ancient cultivated land of Yuchan rock of Yan Zhen of Yan town in the south of Hunan province prove that the Chinese rice cultivation has more than 1.4 ten thousand years of history and is a known world cultivated rice origin place, and paddy is processed into edible rice by ridge paddy, paddy separation, rice milling, white rice grading, color selection, polishing, white rice grading and finished product rice packaging. After the rice is harvested and processed into the paddy, the paddy has large water content and needs to be aired and then processed. When the existing rice airing work is carried out, the rice is aired in a flat laying mode, and the rice is flatly laid on the ground to carry out the rice airing work.

At present, chinese patent with application number CN201820952357.3 discloses a rice airing device, which includes: the two side plates are distributed in the front and back direction and are provided with an upper sliding groove, a lower sliding groove and a longitudinal groove; the drying plate is arranged between the two side plates; a steering drum rotatably provided between the two longitudinal grooves; the upper guide roller is arranged between the right ends of the two upper sliding chutes; the lower guide roller is arranged between the right ends of the two lower sliding chutes; an upper sliding roller which is arranged between the two upper sliding chutes in a manner of sliding left and right; a lower sliding roller which is arranged between the two lower sliding chutes in a manner of being capable of sliding left and right; and one end of the rain curtain is connected with the upper sliding roller, and the other end of the rain curtain is connected with the lower sliding roller after bypassing the upper guide roller, the steering roller and the lower guide roller. The utility model discloses in retrieving two lower spouts to the curtain that keeps off the rain, just can sunning corn on the sun-curing plate, lay the curtain that keeps off the rain two and go up the spout just can prevent to drench, its efficiency is higher and greatly reduced intensity of labour. However, when the device is used for airing the unhulled rice, the unhulled rice is inconvenient to turn over and spread, and based on the fact, the invention designs the fixed auxiliary airing device for the unhulled rice.

Disclosure of Invention

The invention aims to provide a fixed auxiliary drying device for paddy, which solves the problem that the paddy is inconvenient to turn over and spread when the fixed auxiliary drying device is used for drying the paddy in the air.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a fixed supplementary drying device is used to corn, includes mainboard, removal part, installation part, gathering part, reset part, blocks part, drive division and mounting, the mainboard center has been seted up and has been run through the rectangular channel, removal part is including connecting rod, bottom plate and removal wheel, the installation part is including spout and shifting chute, the gathering part is including slide, gathering pinion rack, gathering rack, connecting plate, first gathering board, second gathering board, first small opening, second small opening and gathering baffle, reset part is including movable plate, flexible mainboard, piston plate, jack, riser, L type spout, slider, the pinion rack that resets, L type stopper and inserted bar, block part including the baffle, drive part is including drive gear and actuating lever, the mounting is including running through groove, spread groove and dead lever.

Preferably, the connecting rods are two groups and symmetrically arranged at the centers of two opposite side surfaces of the main board, the bottom board is fixed at the bottom end of the connecting rods, and the moving wheels are arranged at the center of the bottom end of the bottom board and provided with brake pads.

Preferably, the sliding grooves are formed in the centers of two opposite side faces of the through rectangular groove, the two groups of moving grooves symmetrically penetrate through the two opposite side faces of the main board, the height of a horizontal plane where the top end of the moving groove is located is lower than that of a horizontal plane where the bottom end of the sliding groove is located, and the length of the sliding groove is equal to that of the through rectangular groove.

Preferably, the sliding plate is slidably connected inside the sliding groove, the collecting toothed plate is fixed to the center of the side face of the sliding plate, the collecting rack is arranged at the top end of the collecting toothed plate, the connecting plate is fixed to the bottom end of the sliding plate, the first collecting plate and the second collecting plate are obliquely and fixedly arranged on two opposite edges of the bottom end of the connecting plate, the first leakage hole is formed in the position above the middle of the side face of the first collecting plate, the second leakage hole is formed in the position below the middle of the side face of the second collecting plate when the collecting toothed plate contracts, and the collecting baffle plates are totally two groups and symmetrically fixed on two opposite edges of the side face of the first collecting plate.

Preferably, the horizontal plane that the connecting plate bottom was located with the horizontal plane that the mainboard bottom was located is same horizontal plane, the length of connecting plate equals the width that runs through the rectangular channel, first aggregation board and second aggregation board size is the same, the side respectively with the side is in same vertical face around the connecting plate around the first aggregation board, first small opening evenly sets up the position that is close to the top more than the first aggregation board side middle part, the second small opening evenly sets up second aggregation board side below the middle part position and distance second aggregation board bottom has a certain distance, aggregation baffle side is the protruding type on arc side and arc side.

Preferably, the movable plate is slidably disposed in the movable groove, the telescopic main plate is obliquely fixed to the bottom end of the movable plate, the piston plate is movably disposed in the telescopic main plate, the insertion hole is disposed at the top end of the movable plate, the vertical plate is fixed to the edge of the top end of the main plate, the L-type sliding groove is disposed on the side face of the vertical plate, the slider is slidably disposed in the L-type sliding groove, the reset toothed plate is fixed to the end portion of the slider, the reset rack is disposed at the bottom end of the reset toothed plate, the L-type limiting block is fixed to the end portion of the reset toothed plate, and the insertion rod is fixed to the bottom end of the L.

Preferably, the length of flexible mainboard and piston board equals run through the width of rectangular channel, the jack runs through the moving plate, reset the pinion rack and be in directly over the drive gear, the inserted bar bottom is just right the jack setting, the inserted bar bottom to perpendicular distance between the moving plate is less than the length on the L type spout vertical direction.

Preferably, the baffle is two sets of and the symmetry is fixed the setting run through rectangular channel bottom both edges, the length of baffle equals run through rectangular channel's length, the baffle bottom with gather baffle top sliding contact.

Preferably, the penetrating groove penetrates through the sliding block, the connecting groove is formed in the end portion of the vertical portion of the L-type sliding groove, and the length of the fixing rod is larger than the sum of the length of the connecting groove and the length of the penetrating groove.

Preferably, the size of the dimension of the gathering toothed plate is the same as that of the resetting toothed plate, the size of the gathering toothed plate is the same as that of the resetting toothed plate, the gathering toothed plate is meshed with the driving gear, the gathering toothed plate is far away from the rack at the end part of the driving gear can rotate leftwards, and the resetting toothed plate is far away from the rack at the end part of the driving gear can rotate rightwards.

Compared with the prior art, the invention has the beneficial effects that:

(1) according to the rice gathering device, the gathering part is arranged, the driving gear is matched with the gathering rack, and the gathering toothed plate is driven to move through the meshing matching of the driving gear and the gathering rack, so that the first gathering plate and the second gathering plate move to gather rice on the ground;

(2) according to the invention, through setting the reset position, by utilizing the matching of the driving gear and the reset rack, when the gathering toothed plate stops moving, the reset toothed plate is put down through the matching of the sliding block and the L-type sliding groove, the movable plate is driven to move through the matching of the reset strip and the driving gear, so that the telescopic main plate and the piston plate move, the gathered paddy is lifted along the side surface of the first gathering plate, the paddy is turned and spread through the first leakage hole and the second leakage hole, and the auxiliary airing is carried out, meanwhile, as the rack at the upper end part of the reset toothed plate can rotate rightwards, when the reset toothed plate moves to the end part and stops moving, the driving gear is reversely rotated at the moment, so that the gathering toothed plate and the reset toothed plate return to the initial positions, and

(3) through setting up the removal part, stopping part and gathering baffle, gather at the corn and turn over the in-process of spreading out, avoid the corn to spill from the device bottom, ensure that the corn turns over the integrality of spreading out, help the sunning work of corn, the accessible removal part removes the device simultaneously, is convenient for turn over the spreading out to the corn of other positions.

In conclusion, the rice collecting device collects the rice on the ground through the collecting part, the collected rice is turned and spread through the resetting part, the airing work of the rice is facilitated, meanwhile, the resetting of the collecting toothed plate and the resetting toothed plate can be realized through the reverse driving gear, and the operation and the use of operators are facilitated.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings described below are only some examples of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is a schematic diagram of a motherboard structure according to the present invention;

FIG. 4 is a schematic cross-sectional view of FIG. 3 according to the present invention;

FIG. 5 is a schematic diagram of the construction of the focus and reset portions of the present invention;

FIG. 6 is a schematic view of a vertical plate structure according to the present invention;

FIG. 7 is a schematic cross-sectional view of FIG. 6 according to the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

10-main plate, 11-through rectangular groove, 20-connecting rod, 21-bottom plate, 22-moving wheel, 30-sliding groove, 31-moving groove, 40-sliding plate, 41-gathering toothed plate, 42-gathering toothed rack, 43-connecting plate, 44-first gathering plate, 45-second gathering plate, 46-first leak hole, 47-second leak hole, 48-gathering baffle, 50-moving plate, 51-telescopic main plate, 52-piston plate, 53-plug hole, 54-vertical plate, 55-L type sliding groove, 56-sliding block, 57-resetting toothed plate, 58-resetting toothed rack, 59-L type limiting block, 590-plug rod, 60-baffle, 70-driving gear, 71-driving rod, 80-through groove, 81-connecting groove and 82-fixing rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the examples of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

Referring to fig. 1-7, the present invention provides a technical solution:

a fixed auxiliary airing device for rice comprises a main plate 10, a moving part, a mounting part, an aggregation part, a reset part, a blocking part, a driving part and a fixing part, wherein a through rectangular groove 11 is formed in the center of the main plate 10, the moving part comprises a connecting rod 20, a bottom plate 21 and a moving wheel 22, the mounting part comprises a sliding groove 30 and a moving groove 31, the aggregation part comprises a sliding plate 40, an aggregation toothed plate 41, an aggregation rack 42, a connecting plate 43, a first aggregation plate 44, a second aggregation plate 45, a first leakage hole 46, a second leakage hole 47 and an aggregation baffle 48, the resetting part comprises a moving plate 50, a telescopic main plate 51, a piston plate 52, a jack 53, a vertical plate 54, an L type sliding groove 55, a sliding block 56, a resetting toothed plate 57, a resetting rack 58, a L type limiting block 59 and a plug 590, the blocking part comprises a baffle 60, the driving part comprises a driving gear 70 and a driving rod 71, and the fixing part comprises a through groove 80, a connecting groove 81 and a.

Furthermore, two groups of connecting rods 20 are symmetrically arranged at the centers of two opposite side surfaces of the main board 10, the bottom board 21 is fixed at the bottom end of the connecting rods 20, and the moving wheels 22 are arranged at the center of the bottom end of the bottom board 21 and are provided with brake pads;

furthermore, the sliding grooves 30 are arranged in the centers of two opposite side surfaces of the through rectangular groove 11, two groups of moving grooves 31 are arranged and symmetrically penetrate through two opposite side surfaces of the main board 10, the height of a horizontal plane where the top end of the moving groove 31 is located is lower than that of a horizontal plane where the bottom end of the sliding groove 30 is located, and the length of the sliding groove 30 is equal to that of the through rectangular groove 11;

further, the sliding plate 40 is slidably connected inside the sliding groove 30, the gathering toothed plate 41 is fixed at the center of the side face of the sliding plate 40, the gathering toothed rack 42 is arranged at the top end of the gathering toothed plate 41, the connecting plate 43 is fixed at the bottom end of the sliding plate 40, the first gathering plate 44 and the second gathering plate 45 are obliquely and fixedly arranged at two opposite edges of the bottom end of the connecting plate 43, the first leakage hole 46 is arranged at a position above the middle part of the side face of the first gathering plate 44, the second leakage hole 47 is arranged at a position below the middle part of the side face of the second gathering plate 45 during contraction, and the gathering baffle plates 48 are divided into two groups and symmetrically fixed at two opposite;

further, the moving plate 50 is slidably disposed in the moving groove 31, the telescopic main plate 51 is obliquely fixed at the bottom end of the moving plate 50, the piston plate 52 is movably disposed in the telescopic main plate 51, the insertion hole 53 is disposed at the top end of the moving plate 50, the vertical plate 54 is fixed at the top end edge of the main plate 10, the L type sliding groove 55 is disposed at the side surface of the vertical plate 54, the sliding block 56 is slidably disposed in the L type sliding groove 55, the reset toothed plate 57 is fixed at the end of the sliding block 56, the reset rack 58 is disposed at the bottom end of the reset toothed plate 57, the L type limiting block 59 is fixed at the end of the reset toothed plate 57;

further, the collecting toothed plate 41 and the resetting toothed plate 57 have the same specification and size, the collecting rack 42 and the resetting toothed plate 58 have the same specification and size and are meshed with the driving gear 70, the rack at the end part of the collecting rack 42 far away from the driving gear 70 can be arranged in a leftward rotating mode, and the rack at the end part of the resetting toothed plate 58 far away from the driving gear 70 can be arranged in a rightward rotating mode;

it is worth to be noted that the horizontal plane where the bottom end of the connecting plate 43 is located and the horizontal plane where the bottom end of the main plate 10 is located are the same horizontal plane, the length of the connecting plate 43 is equal to the width of the through rectangular groove 11, the first collecting plate 44 and the second collecting plate 45 are the same in size, the front side surface and the rear side surface of the first collecting plate 44 are respectively located on the same vertical plane with the front side surface and the rear side surface of the connecting plate 43, the first leakage holes 46 are uniformly arranged above the middle of the side surface of the first collecting plate 44 and near the top end, the second leakage holes 47 are uniformly arranged below the middle of the side surface of the second collecting plate 45 and have a certain distance from the bottom end of the second collecting plate 45, one side surface of the collecting baffle 48 is an arc side surface and the arc side surface is an upward convex shape, the lengths of the telescopic main plate 51 and the piston plate 52 are equal to the width of the through rectangular groove moving plate 11, the insertion hole 53 penetrates through the driving gear plate 57, the reset tooth plate 57 is located.

Example two

Referring to fig. 1 to 7, wherein the same or corresponding components as those in the first embodiment are designated by the same reference numerals as those in the first embodiment, only differences from the first embodiment will be described for the sake of convenience, the second embodiment is different from the first embodiment in that two sets of the blocking plates 60 are symmetrically and fixedly disposed at both edges of the bottom end of the through rectangular groove 11, the length of the blocking plates 60 is equal to that of the through rectangular groove 11, the bottom end of the blocking plates 60 is in sliding contact with the top end of the collecting blocking plate 48, the through groove 80 is disposed through the sliding block 56, the connecting groove 81 is disposed at the end of the vertical portion of the L type sliding groove 55, and the length of the fixing rod 82 is greater than the sum of the lengths of the connecting groove 81 and the through.

The working process of the invention is as follows: the device is moved to the upper part of the aired paddy by using a moving part, an operator drives a driving gear 70 to rotate right by using a driving rod 71, and drives a gathering toothed plate 41 to move left by using the meshing fit of the driving gear 70 and a gathering toothed rack 42, so as to drive a first gathering plate 44 and a second gathering plate 45 to move left and gather the paddy on the ground, when the gathering toothed plate 41 moves to the tail part, the gathering toothed plate 41 stops moving because the rack at the tail part can rotate left, at the moment, a fixing rod 82 is taken down, a sliding block 40 falls down to enable a reset rack 58 to be meshed and contacted with the driving gear 70, and along with the continuous right rotation of the driving gear 70, a reset toothed plate 57 is driven to move right, so that a moving plate 50 moves right, a telescopic main plate 51 and a piston plate 52 move right, and the gathered paddy rises along the inclined side surface of the first gathering plate, realize the turn-over of corn and spread out through first small opening 46 and second small opening 47, help the sunning of corn, in-process, gather baffle 48 and baffle 60 and avoid the corn to gather and take place when the take the altitude and omit, ensure the integrity that the corn turned over and spread out, when the pinion rack 57 that resets moves to the afterbody, because the rack of afterbody can rotate right, pinion rack 57 that resets stops to move, in reverse direction rotation drive gear 70 after that, make gather pinion rack 41 and pinion rack 57 that resets and get back to the position before the removal, pinion rack 57 that will reset through dead lever 82 resets, then mobile device, the corn that carries out other positions turns over and spreads out the work.

In the description of the present invention, it is to be understood that the terms "front-back", "left-right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or component must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the invention.

Of course, in this disclosure, those skilled in the art will understand that the terms "a" and "an" should be interpreted as "at least one" or "one or more," i.e., in one embodiment, a number of an element may be one, and in another embodiment, a number of the element may be plural, and the terms "a" and "an" should not be interpreted as limiting the number.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily made by those skilled in the art in light of the technical teaching of the present invention should be included 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.

Claims

1. A fixed auxiliary airing device for rice comprises a main plate (10), a moving part, a mounting part, an aggregation part, a reset part, a blocking part, a driving part and a fixing part, and is characterized in that a through rectangular groove (11) is formed in the center of the main plate (10), the moving part comprises a connecting rod (20), a bottom plate (21) and a moving wheel (22), the mounting part comprises a sliding groove (30) and a moving groove (31), the aggregation part comprises a sliding plate (40), an aggregation toothed plate (41), an aggregation rack (42), a connecting plate (43), a first aggregation plate (44), a second aggregation plate (45), a first leakage hole (46), a second leakage hole (47) and an aggregation baffle plate (48), the resetting part comprises a moving plate (50), a telescopic main plate (51), a piston plate (52), an insertion hole (53), a vertical plate (54), an L-type sliding groove (55), a sliding block (56), a reset toothed plate (57), a reset rack (58), a L-type limiting block (59) and an insertion rod (590), the blocking part comprises a fixing plate (60), the driving part (70) and a driving rod (82), and a driving rod (71) and a driving rod (80).

2. The fixed auxiliary airing device for rice according to claim 1, wherein: the connecting rods (20) are arranged at the centers of two opposite side faces of the main board (10) in two groups and symmetrically, the bottom board (21) is fixed at the bottom end of the connecting rods (20), and the moving wheels (22) are arranged at the center of the bottom end of the bottom board (21) and are provided with brake pads.

3. The fixed auxiliary airing device for rice according to claim 1, wherein: the sliding grooves (30) are arranged in the centers of two opposite side faces of the through rectangular groove (11), the moving grooves (31) are two groups and symmetrically penetrate through the two opposite side faces of the main board (10), the height of a horizontal plane where the top ends of the moving grooves (31) are located is lower than that of a horizontal plane where the bottom ends of the sliding grooves (30) are located, and the length of each sliding groove (30) is equal to that of the through rectangular groove (11).

4. The fixed auxiliary airing device for rice according to claim 1, wherein: slide (40) sliding connection is in inside spout (30), gather pinion rack (41) and fix slide (40) side center, gather rack (42) and set up gather pinion rack (41) top, connecting plate (43) are fixed slide (40) bottom, first gathering board (44) and second gathering board (45) slope is fixed to be set up two relative edges in connecting plate (43) bottom, first small opening (46) set up position more than the side middle part of first gathering board (44), second small opening (47) set up position below the side middle part of second gathering board (45) when the shrink, gather baffle (48) total two sets of and the symmetry is fixed two relative edges in first gathering board (44) side.

5. The fixed auxiliary airing device for rice according to claim 4, wherein: the horizontal plane that connecting plate (43) bottom was located with the horizontal plane that mainboard (10) bottom was located is same horizontal plane, the length of connecting plate (43) equals the width that runs through rectangular channel (11), the size of first aggregation board (44) is the same with second aggregation board (45), the side is in same vertical face with the side around connecting plate (43) respectively around first aggregation board (44), first small opening (46) evenly set up the position that is close to the top more than first aggregation board (44) side middle part, second small opening (47) evenly set up the position below second aggregation board (45) side middle part and apart from second aggregation board (45) bottom has certain distance, gather baffle (48) side and be protruding type side and arc side and upward.

6. The fixed auxiliary airing device for rice according to claim 1, wherein the moving plate (50) is slidably disposed in the moving groove (31), the telescopic main plate (51) is obliquely fixed at the bottom end of the moving plate (50), the piston plate (52) is movably disposed in the telescopic main plate (51), the insertion hole (53) is disposed at the top end of the moving plate (50), the vertical plate (54) is fixed at the top end edge of the main plate (10), the L-shaped sliding groove (55) is disposed at the side surface of the vertical plate (54), the sliding block (56) is slidably disposed in the L-shaped sliding groove (55), the reset toothed plate (57) is fixed at the end of the sliding block (56), the reset rack (58) is disposed at the bottom end of the reset toothed plate (57), the L-shaped limit block (59) is fixed at the end of the reset toothed plate (57), and the insertion rod (590) is fixed at the bottom end of the L-shaped limit block (59).

7. A fixed auxiliary airing device for rice according to claim 6, characterized in that the length of the telescopic main plate (51) and the piston plate (52) is equal to the width of the through rectangular groove (11), the insertion hole (53) penetrates through the moving plate (50), the reset toothed plate (57) is located right above the driving gear (80), the bottom end of the inserted rod (590) is arranged right opposite to the insertion hole (53), and the vertical distance between the bottom end of the inserted rod (590) and the moving plate (50) is smaller than the length of the L-type sliding groove (55) in the vertical direction.

8. The fixed auxiliary airing device for rice according to claim 1, wherein: the baffle (60) are two groups in total and are symmetrically and fixedly arranged at two edges of the bottom end of the through rectangular groove (11), the length of the baffle (60) is equal to that of the through rectangular groove (11), and the bottom end of the baffle (60) is in sliding contact with the top end of the gathering baffle (48).

9. The fixed auxiliary airing device for rice according to claim 1, wherein the through groove (80) is formed through the sliding block (56), the connecting groove (81) is formed at an end of a vertical portion of the L-shaped sliding groove (55), and the length of the fixing rod (82) is greater than the sum of the lengths of the connecting groove (81) and the through groove (80).

10. The fixed auxiliary airing device for rice according to claim 1, wherein: the size of the dimension of the gathering toothed plate (41) is the same as that of the resetting toothed plate (57), the size of the gathering toothed plate (42) is the same as that of the resetting toothed plate (58) and the gathering toothed plate is meshed with the driving gear (70), the gathering toothed plate (42) is far away from the rack at the end part of the driving gear (70) and can be arranged in a leftward rotating mode, and the resetting toothed plate (58) is far away from the rack at the end part of the driving gear (70) and can rotate rightwards.