CN114651633B

CN114651633B - Cultivation system for agriculture and forestry seedling breeding

Info

Publication number: CN114651633B
Application number: CN202210168503.4A
Authority: CN
Inventors: 付建秀; 王莹; 周小杏; 王兰先
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-02-23
Filing date: 2022-02-23
Publication date: 2023-05-26
Anticipated expiration: 2042-02-23
Also published as: CN114651633A

Abstract

The invention discloses a cultivation system for agriculture and forestry seedling breeding, which relates to the technical field of seedling raising equipment and comprises a support shell and a seedling raising basin, wherein an inner wall of the support shell is fixedly connected with a mounting plate, a plurality of placing holes for placing the seedling raising basin are formed in the surface of the mounting plate, the placing holes are arranged in a horizontal-vertical equidistant mode, a drain hole is formed in the bottom end of the support shell, a limiting rod is fixedly connected with the inner wall of the support shell, a sliding cylinder is connected to the surface of the limiting rod in a sliding mode, two through holes are formed in the surface of the sliding cylinder, and two water delivery long pipes are connected to the sliding cylinder in a sliding mode through the through holes. Through the mutual coordination among the structures, the water body irrigates in a mode of encircling seedlings, is suitable for plants of different types and sizes, can effectively avoid the phenomenon of rotting top caused by accumulated water on the top of seedlings, can greatly improve the survival rate of seedlings, irrigates seedlings in batches, and greatly improves the irrigation efficiency.

Description

Cultivation system for agriculture and forestry seedling breeding

Technical Field

The invention relates to the technical field of agriculture and forestry seedling raising equipment, in particular to a cultivation system for agriculture and forestry seedling raising breeding.

Background

The seedling raising means that the seedlings are cultivated in a nursery, a hotbed or a greenhouse, so that the seedlings are transplanted in the soil for planting, and particularly the seedling raising is carried out in a stage that the seedlings are protected manually until the seedlings can survive independently when the plants are tiny, so that the seedlings are grown in a strong and semi-harvest manner, and the seedling raising is a very main work.

Traditional seedling raising equipment is simpler, is a plurality of simple collections of growing seedlings basin generally, and when the volume of growing seedlings was great, corresponding can greatly increased cultivation personnel's intensity of labour, and traditional manual irrigation is comparatively rough, makes plant terminal bud take place ponding phenomenon easily, leads to rotten top, has influenced the survival rate of seedling to a certain extent, and is very inconvenient in the in-service use.

Disclosure of Invention

The invention aims to provide a cultivation system for agriculture and forestry seedling raising and breeding, which has the advantages that a water body is enabled to irrigate in a mode of encircling seedlings, the cultivation system is suitable for plants of different types and sizes, the phenomenon of rotten top caused by accumulated water on the top of seedlings can be effectively avoided, the survival rate of seedlings can be greatly improved, the seedlings can be irrigated in batches, the effect of irrigation efficiency is greatly improved, the problem that the conventional seedling raising equipment is simpler, generally a plurality of seedling raising pots are simply assembled, when the seedling raising amount is large, the labor intensity of cultivation personnel is correspondingly greatly increased, and the phenomenon of accumulated water on top buds of plants is easily caused by traditional manual irrigation is relatively rough.

In order to achieve the above purpose, the present invention provides the following technical solutions: the cultivation system for agriculture and forestry seedling raising breeding comprises a support shell and a seedling raising basin, wherein the inner wall of the support shell is fixedly connected with a mounting plate, and a plurality of placement holes for placing the seedling raising basin are formed in the surface of the mounting plate;

the utility model discloses a water storage device, including support shell, water storage disc's bottom fixed mounting has the shower nozzle, the quantity of water storage disc is the same with the quantity of transverse position placing the hole, and two the interval of water storage disc is two with transverse position place the interval of hole the same, still include the drive the water storage disc carries out circular motion to drive the shower nozzle and carry out the actuating part one of circular motion water spray.

Optionally, the first drive part of drive part includes mounting plate, mounting plate's upper surface fixed mounting has motor one, the fixed surface of motor one output shaft is connected with the rotor plate, the fixed surface of rotor plate is connected with spacing platform, the spout has been seted up to the upper surface of spacing platform, the inner wall slip of spout is provided with regulating block one, regulating block one's surface dead axle rotation is connected with the connecting rod, two the equal fixed connection of one end that the water delivery long tube is close to the rotor plate is in the surface of connecting rod.

Optionally, the seedling raising device also comprises a second driving component for driving the water storage disc to vertically move so as to irrigate seedling raising pots at different longitudinal positions.

Optionally, the second driving part comprises a limiting plate, the limiting plate is fixedly connected to the inner wall of the supporting shell, a limiting groove is formed in the surface of the limiting plate in a penetrating mode, an adjusting block II is slidably connected to the inner wall of the limiting groove, a first threaded hole is formed in the surface of the adjusting block II, a first threaded rod is connected to the adjusting block II through a first threaded hole, the end portion of the first threaded rod is fixedly connected with the inner wall of the supporting shell in a rotating mode, a second motor is fixedly installed on the inner wall of the supporting shell, and the surface of an output shaft of the second motor is fixedly connected with the end portion of the first threaded rod.

Optionally, the device also comprises an adjusting part for adjusting the circular movement radius of the spray head so as to irrigate different kinds of plants.

Optionally, the adjusting part includes motor three, motor three fixed connection is in the surface of rotor plate, the fixed surface of motor three output shaft is connected with threaded rod two, threaded rod two's tip with the inner wall dead axle of spout rotates to be connected, the screw hole two that supplies threaded rod two passed and threaded connection with it has been seted up on the surface of adjusting block one, the cross section of adjusting block one is the rectangle, the chi footpath of adjusting block one with the internal diameter looks adaptation of spout.

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

1. according to the seedling raising basin, seedlings are planted in the center of the seedling raising basin, an external water source is introduced into the water delivery long pipe, water flowing in the water delivery long pipe flows into the plurality of water storage plates through the water leakage holes, the seedling raising basin at the same transverse position is irrigated through the spray heads arranged at the bottoms of the water storage plates, the spray heads are irrigated in a mode of encircling the seedlings under the driving of the first driving part, the phenomenon that the seedlings are rotten due to water accumulation at the tops of the seedlings can be effectively avoided, the survival rate of the seedlings can be greatly improved, the seedlings at the same transverse row position can be irrigated at the same time, and the irrigation efficiency is greatly improved.

2. According to the invention, under the transmission cooperation of the first threaded rod and the second adjusting block, the first threaded rod rotates positively and negatively, so that the second adjusting block reciprocates under the limit of the limit groove, and under the transmission of the mounting bottom plate, the water delivery long pipe synchronously moves, so that the spray head corresponds to the seedling raising pots at different longitudinal positions, the effect of sequentially irrigating multiple rows of seedling raising pots in batches is achieved, and the irrigation efficiency is greatly improved.

3. According to the invention, the first adjusting block is matched with the connecting rod in a transmission way, the third output shaft of the motor rotates to drive the second threaded rod to rotate, so that the first adjusting block reciprocates along the inner wall of the chute, the vertical distance from the connecting rod to the center of the rotating plate is adjusted, the circular movement radius of the water storage disc can be controlled, the spray head is suitable for irrigation of plants of different types, and the irrigation point is close to the root of the plant as much as possible, so that water resources are saved.

4. According to the invention, the first threaded rod is matched with the transmission of the rotating shaft, the rotating shaft drives the stirring rod to rotate under the transmission of the belt transmission assembly, the liquid medicine in the liquid storage bin is mixed with the water body, the uniformity of the prepared medicine is improved, and then the medicine is sprayed and applied through the Y-shaped bifurcation hose, the water delivery long tube and the spray head.

Drawings

FIG. 1 is an isometric view of a construction of the present invention;

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

FIG. 3 is a schematic view of a first motion state of the structure of the present invention;

FIG. 4 is a schematic view of a second motion state of the structure of the present invention;

FIG. 5 is an enlarged view of a portion of the structure of FIG. 2 in accordance with the present invention;

FIG. 6 is a cross-sectional view of the structure of FIG. 2 at A-A in accordance with the present invention;

in the figure: 1. a support housing; 2. seedling raising basin; 3. a mounting plate; 4. placing the hole; 5. a limit rod; 6. a sliding cylinder; 7. a water delivery long tube; 8. a water storage tray; 9. a water leakage hole; 10. a spray head; 11. a mounting base plate; 12. a first motor; 13. a rotating plate; 14. a limiting table; 15. a chute; 16. an adjusting block I; 17. a connecting rod; 18. a limiting plate; 19. a limit groove; 20. an adjusting block II; 21. a first threaded rod; 22. a second motor; 23. a third motor; 24. a second threaded rod; 25. a liquid storage bin; 26. a medicine inlet hole; 27. a water inlet hole; 28. y-shaped bifurcated hoses; 29. a partition plate; 30. a stirring rod; 31. a rotating shaft.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Embodiment one:

referring to fig. 1 to 6, the present embodiment provides a cultivation system for agriculture and forestry seedling raising and breeding, which comprises a support housing 1 and a seedling raising basin 2, wherein an inner wall of the support housing 1 is fixedly connected with a mounting plate 3, and a plurality of placement holes 4 for placing the seedling raising basin 2 are formed in the surface of the mounting plate 3.

The placing holes 4 are arranged at equal intervals in the horizontal and vertical directions, the bottom end of the supporting shell 1 is provided with water draining holes, the inner wall of the supporting shell 1 is fixedly connected with a limiting rod 5, the surface of the limiting rod 5 is connected with a sliding cylinder 6 in a sliding manner, two perforations are formed in the surface of the sliding cylinder 6, the sliding cylinder 6 is connected with two water delivery long pipes 7 in a sliding manner through the perforations, the surfaces of the two water delivery long pipes 7 are fixedly sleeved with water storage plates 8 together, the surfaces of the water delivery long pipes 7 are provided with water leaking holes 9, the bottom ends of the water storage plates 8 are fixedly provided with spray heads 10, the number of the water storage plates 8 is the same as that of the placing holes 4 in the transverse position, the distance between the two water storage plates 8 is the same as that between the two placing holes 4 in the transverse position, the water storage plates 8 are driven to perform circular motion, and accordingly the spray heads 10 are driven to perform circular motion, firstly, planting seedlings in the center of a seedling raising basin 2, placing the seedling raising basin 2 in a placing hole 4 in sequence, placing the seedling raising basin 2 according to the principle that the same kind of plants are placed in the placing holes 4 at the same transverse position, after the seedling raising basin 2 is completely placed, when the plants planted in the seedling raising basin 2 need to be irrigated, outside water sources are introduced into a water delivery long pipe 7, water flowing in the water delivery long pipe 7 respectively enters a plurality of water storage trays 8 through water leakage holes 9, irrigates the seedling raising basin 2 at the same transverse position through a spray head 10 arranged at the bottom of the water storage tray 8, and the spray head 10 is driven by a driving part I to irrigate in a mode of encircling seedlings, so that the occurrence of rotten roof phenomenon caused by accumulated water at the tops of seedlings can be effectively avoided, the survival rate of the seedlings can be greatly improved, and the seedlings at the same transverse position can be irrigated at the same time, greatly improves the irrigation efficiency.

In order to drive the shower nozzle 10 to take the seedling of its below corresponding position's seedling basin 2 central point to carry out circular motion, the water spraying process of cooperation shower nozzle 10 for the water is irrigated with the mode of encircling the seedling, further, driving part one includes mounting plate 11, mounting plate 11's last fixed surface installs motor one 12, the fixed surface of motor one 12 output shaft is connected with rotor plate 13, rotor plate 13's fixed surface is connected with spacing platform 14, the spout 15 has been seted up to spacing platform 14's upper surface, spout 15's inner wall slip is provided with regulating block one 16, the fixed shaft rotation of the surface of regulating block one 16 is connected with connecting rod 17, two the one end that water delivery long tube 7 is close to rotor plate 13 is in the surface of connecting rod 17 is fixed connection, through starting motor one 12 output shaft rotations makes rotor plate 13 rotate, rotor plate 13 rotates and makes the centre of a circle of rotor plate 13's fixed surface be connected with rotor plate 13's center of circle, make connecting rod 17 carry out synchronous circular motion simultaneously, make the water delivery long tube 7 make the water storage disc 10 rotate for its corresponding mode of encircling the center of rotation of water storage disc 10 under the corresponding position of water spraying nozzle 10, thereby the water spraying process has reached.

In order to irrigate multirow seedling basin 2 in batches in proper order, further, still include the drive water storage disk 8 carries out vertical movement to carry out the drive part two that irrigates to different vertical positions seedling basin 2, drive part two includes limiting plate 18, limiting plate 18 fixed connection is in the inner wall of support shell 1, limiting plate 18's surface runs through and is provided with spacing groove 19, spacing groove 19's inner wall sliding connection has regulating block two 20, threaded hole one has been seted up on regulating block two 20's surface, regulating block two has threaded rod one 21 through threaded hole one threaded connection, threaded rod one 21's tip with support shell 1's inner wall dead axle rotation is connected, support shell 1's inner wall fixed mounting has motor two 22, motor two 22 output shaft's surface with threaded rod one 21's tip fixed connection, after single seedling irrigation of arranging, operating personnel only need start motor two 22, through the forward rotation or reverse rotation of motor two 22 output shaft's threaded rod, make one 21 carry out synchronous rotation, thereby drive regulating block two 20 and carry out reciprocating movement under spacing groove 19's surface, carry out the reciprocal movement under the long tube 11, drive 10 and carry out the high-speed water-up 10 and the corresponding shower nozzle 2 of seedling in proper order and irrigates in batches, thereby the efficiency is reached and the vertical movement of seedling 2 is realized in proper order under the long tube is moved under the position of supporting shell 2.

In order to control the circular motion radius of water storage disk 8 for shower nozzle 10 adaptation different types of plants irrigates, further, still include the regulation the circular motion radius of shower nozzle 10 to carry out the adjusting part that irrigates to different types of plants, adjusting part includes motor three 23, motor three 23 fixed connection is in the surface of rotating plate 13, the fixed surface of motor three 23 output shaft is connected with threaded rod two 24, threaded rod two 24's tip with the inner wall dead axle rotation of spout 15 is connected, the confession has been seted up on the surface of adjusting block one 16 threaded rod two 24 pass and with threaded connection's screw hole two, the cross section of adjusting block one 16 is the rectangle, the chi footpath of adjusting block one 16 with spout 15's internal diameter looks adaptation, simultaneously carry out longitudinal movement at above-mentioned shower nozzle 10, in-process that irrigates to different rows of plants in proper order, because the plant of the same kind is put in the hole 4 of same transverse position, and the size of different types of plants generally different, the operating personnel can start motor three 23, and the rotating plate 23 root of motor three 24 drives two and carries out the threaded rod 16 and drives two and rotate the threaded rod 16 and carry out the radial adjustment to the diameter of the connecting rod that makes the diameter of adjusting block one, thereby the water storage disk 10 is adjusted to the diameter of the perpendicular to the spout 15, the diameter of the plant that the diameter of the plant is adjusted, and the diameter of the water storage disk is adjusted to the diameter is adjusted as far as possible, and the diameter of the plant is adjusted to the diameter of the inner wall of the spout 15 is adjusted.

In a second embodiment, based on the foregoing embodiment, another embodiment is:

in order to supply water to the long water delivery pipe 7, the liquid storage bin 25 has been seted up to the inside of supporting shell 1, medicine inlet 26 and inlet 27 have been seted up to the surface of supporting shell 1, medicine inlet 26 and inlet 27 all with liquid storage bin 25 are linked together, liquid storage bin 25 fixedly communicates there is Y shape bifurcation hose 28, the inner wall fixedly connected with baffle 29 of supporting shell 1, Y shape bifurcation hose 28 passes baffle 29 respectively with two the tip fixed connection of long water delivery pipe 7, when needs are irrigated the plant of planting in the nursery basin 2, the operating personnel only need with external water piping connection in inlet 27 department, and then flow into liquid storage bin 25 with external water source through inlet 27 in, start the water pump of installation in the liquid storage bin 25 simultaneously, can make the water body that stores in the liquid storage bin 25 pass through Y shape bifurcation hose 28 and lets in the long water delivery pipe 7 in through hole 9 entering a plurality of water storage tray 8 to irrigate the nursery basin 2 of same horizontal position through shower nozzle 10 that water storage tray 8 bottom set up.

In the third embodiment, based on the above embodiment, another embodiment is:

in order to improve the uniformity of the prepared medicines, the inner wall of the liquid storage bin 25 is fixedly connected with a rotating shaft 31 in a rotating manner, the shaft arm of the rotating shaft 31 is in transmission connection with the shaft arm of the first threaded rod 21 through a belt transmission assembly, the end part of the rotating shaft 31 is fixedly connected with a stirring rod 30, when the medicine application operation is required to be carried out on plants, the above irrigation operation is only required to be repeated, medicine liquid is introduced into the medicine inlet holes 26 and is mixed with water entering through the water inlet holes 27 in the liquid storage bin 25, meanwhile, the rotation of the first threaded rod 21 is carried out, and the belt transmission assembly is matched, so that the rotating shaft 31 drives the stirring rod 30 to rotate, the medicine liquid in the liquid storage bin 25 is mixed with the water, the uniformity of the prepared medicines is improved, and then the medicines are sprayed and applied through the Y-shaped bifurcation hose 28, the water delivery long tube 7 and the spray head 10.

Working principle: when the cultivation system for agriculture and forestry seedling raising breeding is used, an operator firstly plants seedlings at the center in the seedling raising basin 2, sequentially places the seedling raising basin 2 in the placement holes 4, places the seedlings in the placement holes 4 at the same transverse position according to the same plants, after the seedlings raising basin 2 is completely placed, when the plants planted in the seedling raising basin 2 are required to be irrigated, the operator only needs to connect the water inlet 27 with an external water pipe, so that an external water source flows into the liquid storage bin 25 through the water inlet 27, and simultaneously starts a water pump arranged in the liquid storage bin 25, water stored in the liquid storage bin 25 can be introduced into the water delivery long pipe 7 through the Y-shaped bifurcation hose 28, water flowing in the water delivery long pipe 7 flows into the plurality of water storage trays 8 through the water leakage holes 9, and irrigates the seedling raising basin 2 at the same transverse position through the spray heads 10 arranged at the bottom of the water storage tray 8;

the motor I12 is started during irrigation, the output shaft of the motor I12 rotates to drive the rotating plate 13 to rotate, the rotating plate 13 rotates to drive the regulating block I16 in the limiting table 14 to perform circular motion by taking the center of the rotating plate 13 as the axis, the regulating block I16 moves circularly and simultaneously drives the connecting rod 17 to perform synchronous circular motion, and under the transmission of the two water delivery long pipes 7, the water storage disc 8 is driven to perform synchronous circular motion relative to the connecting rod 17, and then the spray head 10 is driven to perform circular motion by taking the seedling at the center of the seedling raising basin 2 at the corresponding position below the water storage disc as the axis, and the water spraying process of the spray head 10 is matched, so that water body irrigates in a mode of encircling the seedlings, the phenomenon of rotten roof caused by accumulated water at the top of the seedlings can be effectively avoided, the survival rate of the seedlings can be greatly improved, the seedlings at the same time of irrigation at the same horizontal row position can be irrigated, and the irrigation efficiency is greatly improved;

after the single-row seedling irrigation is finished, an operator only needs to start the motor II 22, the positive and negative rotation of the output shaft of the motor II 22 drives the threaded rod I21 to synchronously rotate, so that the regulating block II 20 reciprocates under the limit of the limit groove 19, the water delivery long pipe 7 synchronously moves under the transmission of the mounting bottom plate 11, and the spray head 10 corresponds to the seedling raising pots 2 at different longitudinal positions, and therefore the effect of sequentially carrying out batch irrigation on the multiple-row seedling raising pots 2 is achieved, and the irrigation efficiency is greatly improved;

meanwhile, in the process of longitudinally moving the spray head 10, as plants of the same type are placed in the placing holes 4 at the same transverse position and plants of different types are different in size, an operator can start the motor III 23, the output shaft of the motor III 23 rotates to drive the threaded rod II 24 to rotate, and then the regulating block I16 moves reciprocally along the inner wall of the sliding groove 15, so that the vertical distance from the connecting rod 17 to the center of the rotating plate 13 is adjusted, and the radius of circular movement of the water storage disc 8 can be controlled, so that the spray head 10 is suitable for irrigation of plants of different types, irrigation points are close to the root of the plants as much as possible, and water resources are saved.

When the plants need to be applied, the irrigation operation is only needed to be repeated, meanwhile, the liquid medicine is introduced through the medicine inlet holes 26 and mixed with the water body entering through the water inlet holes 27 in the liquid storage bin 25, meanwhile, the stirring rod 30 is driven by the rotating shaft 31 to rotate under the transmission of the belt transmission assembly through the rotation of the first threaded rod 21, the liquid medicine in the liquid storage bin 25 is mixed with the water body, the uniformity of the prepared medicine is improved, and then the medicine is sprayed and applied through the Y-shaped bifurcation hose 28, the water delivery long tube 7 and the spray head 10.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a agriculture and forestry are grown seedlings breeding and are used cultivation system, includes support shell (1) and educates seedling tray (2), its characterized in that: the inner wall of the supporting shell (1) is fixedly connected with a mounting plate (3), and the surface of the mounting plate (3) is provided with placing holes (4) which are arranged in a horizontal-vertical equidistant manner;

wherein, the bottom end of the supporting shell (1) is provided with a drain hole;

a limiting rod (5) is fixedly connected to the inner wall of the supporting shell (1);

the surface sliding connection of the limiting rod (5) is provided with two perforated sliding barrels (6), the sliding barrels (6) are provided with two water delivery long pipes (7) through perforation sliding connection, the two water delivery long pipes (7) are fixedly sleeved with a water storage disc (8) on the surface of the water delivery long pipes (7), water leakage holes (9) are formed in the surface of the water delivery long pipes, a spray head (10) is fixedly arranged at the bottom end of the water storage disc (8), the number of the water storage disc (8) is the same as the number of the placing holes (4) in the transverse position, the distance between the two water storage discs (8) is the same as the distance between the two placing holes (4) in the transverse position, the limiting rod is further provided with a driving part I for driving the water storage disc (8) to perform circular motion so as to drive the spray head (10) to perform circular motion, the driving part I comprises a mounting base plate (11), a motor I (12) is fixedly arranged on the upper surface of the mounting base plate (11), a rotating plate (13) is fixedly connected with the surface of an output shaft of the motor I (12), the rotating plate (13) is fixedly connected with the rotating plate (14), the surface of the rotating plate (13) is fixedly connected with a fixed connection rod (16), the surface of the rotating plate (16) is provided with a sliding groove (16), the inner wall (16) is fixedly connected with the rotating plate (16), one end of each water delivery long pipe (7) close to the rotating plate (13) is fixedly connected to the surface of the connecting rod (17);

the second driving part is used for driving the water storage disc (8) to vertically move so as to irrigate the seedling raising basin (2) at different longitudinal positions;

the second driving part comprises a limiting plate (18), the limiting plate (18) is fixedly connected to the inner wall of the supporting shell (1), a limiting groove (19) is formed in the surface of the limiting plate (18) in a penetrating mode, an adjusting block II (20) is slidably connected to the inner wall of the limiting groove (19), a threaded hole I is formed in the surface of the adjusting block II (20), a threaded rod I (21) is connected to the adjusting block II (20) through the threaded hole I in a threaded mode, and the end portion of the threaded rod I (21) is fixedly connected with the inner wall of the supporting shell (1) in a rotating mode.

2. The cultivation system for agriculture and forestry seedling breeding according to claim 1, wherein: the inner wall of the support shell (1) is fixedly provided with a second motor (22), and the surface of an output shaft of the second motor (22) is fixedly connected with the end part of the first threaded rod (21).

3. The cultivation system for agriculture and forestry seedling breeding according to claim 1, wherein: the device also comprises an adjusting component for adjusting the circular movement radius of the spray head (10) so as to irrigate plants of different types.

4. A cultivation system for raising seedlings of agriculture and forestry according to claim 3, wherein: the adjusting part comprises a motor III (23), the motor III (23) is fixedly connected to the surface of the rotating plate (13), a threaded rod II (24) is fixedly connected to the surface of an output shaft of the motor III (23), the end part of the threaded rod II (24) is rotationally connected with the inner wall of the sliding groove (15) in a fixed shaft mode, a threaded hole II which is used for the threaded rod II (24) to penetrate through and be in threaded connection with the threaded rod II is formed in the surface of the adjusting block I (16), the cross section of the adjusting block I (16) is rectangular, and the ruler diameter of the adjusting block I (16) is matched with the inner diameter of the sliding groove (15).