CN114847257B

CN114847257B - Forestry seedling culture pesticide spraying method

Info

Publication number: CN114847257B
Application number: CN202210403198.2A
Authority: CN
Inventors: 李伟; 周小杏; 杨华英
Original assignee: Luhe Fruit Industry Development Co ltd In Hengshan District Yulin City
Current assignee: Luhe Fruit Industry Development Co ltd In Hengshan District Yulin City
Priority date: 2022-04-18
Filing date: 2022-04-18
Publication date: 2023-09-15
Anticipated expiration: 2042-04-18
Also published as: CN114847257A

Abstract

The invention discloses a pesticide spraying method for forestry seedling cultivation, which is characterized by comprising the following steps of: step one: installing the track into a seedling greenhouse; step two: adding a proper amount of pesticide into the pesticide box; step three: the motor is turned on, so that the vehicle body moves to the other end along one end of the track and then reversely moves to an initial position; step four: and when the motor is started, the liquid pump is started, so that the liquid medicine is sprayed out of the spray head, the spray head can swing reciprocally, the liquid medicine is sprayed onto the sapling, and automatic medicine spraying is realized. The invention relates to the field of forestry equipment, in particular to a seedling raising pesticide spraying method. The invention aims to solve the technical problem of providing a pesticide spraying method for forestry seedling cultivation, which is convenient for automatic pesticide spraying for forestry seedling cultivation.

Description

Forestry seedling culture pesticide spraying method

Technical Field

The invention relates to the field of forestry, in particular to a pesticide spraying method for seedling culture of forestry.

Background

Seedling raising means the cultivation of seedlings. By original is meant that the seedlings are cultivated in a nursery, hotbed or greenhouse for transplanting into the ground for planting. Colloquially speaking, "seedling is strong and half-harvest". Seedling raising is a work with high labor intensity, time consumption and strong technical performance. In order to accelerate seedling growth during seedling growth, seedling growth can be carried out in a greenhouse.

The seedlings need to be sprayed with medicines at regular time, and at present, manual work is usually used as the main part when spraying medicines. And more manpower is consumed, and the efficiency is lower. Moreover, when the medicine is sprayed manually, the medicine spraying is easy to be uneven. This is a disadvantage of the prior art.

Disclosure of Invention

The invention aims to solve the technical problem of providing a pesticide spraying method for forestry seedling cultivation, which is convenient for automatic pesticide spraying for forestry seedling cultivation.

The invention adopts the following technical scheme to realize the aim of the invention:

the forestry seedling culture spraying method is characterized by comprising the following steps of:

step one: installing the track into a seedling greenhouse;

step two: adding a proper amount of pesticide into the pesticide box;

step three: the motor is turned on, so that the vehicle body moves to the other end along one end of the track and then reversely moves to an initial position;

step four: and when the motor is started, the liquid pump is started, so that the liquid medicine is sprayed out of the spray head, the spray head can swing reciprocally, the liquid medicine is sprayed onto the sapling, and automatic medicine spraying is realized.

As a further limitation of the technical scheme, the vehicle body bearing is connected with a symmetrical driven wheel, the vehicle body bearing is connected with a symmetrical driving wheel, the symmetrical driving wheel is respectively and fixedly connected with a square rod III, the vehicle body is fixedly connected with a square rod II, the square rod II is provided with a hemispherical hole, the vehicle body is fixedly connected with a frame body, the symmetrical driven wheel is respectively arranged in the track, the symmetrical driving wheel is respectively arranged in the track, the track is fixedly connected with a straight groove, the vehicle body is fixedly connected with a motor, an output shaft of the motor penetrates through the vehicle body, and an output shaft of the motor is fixedly connected with a bevel gear I.

As a further limitation of the technical scheme, a square block is arranged in the frame body, a chute is arranged in the square block, the square block is fixedly connected with a symmetrical L-shaped rod, the transverse rods of the symmetrical L-shaped rod respectively penetrate through the frame body, the vertical rods of the symmetrical L-shaped rod are respectively arranged in the straight grooves, a round rod IV is arranged in the chute, the round rod IV is fixedly connected with a U plate, the U plate is provided with a square groove and a symmetrical round hole, the symmetrical round holes are respectively communicated with the square groove, a square rod II is arranged in the square groove, round head rods II are respectively arranged in the round holes, the symmetrical round head rods II are respectively fixedly connected with a fixed block, one ends of springs are respectively fixedly connected with the fixed blocks, the symmetrical round head rods II are respectively sleeved with the springs in a ring mode, the springs are respectively fixedly connected with the U plate, the U plate bearing is connected with the central shafts of the symmetrical bevel gears II, square holes are respectively arranged on the central shafts of the symmetrical bevel gears II, the square rods III penetrate through the square holes, and the square bevel gears II are matched with the symmetrical bevel gears.

As a further limitation of the present technical solution, the second round head rod is matched with the hemispherical hole.

As a further limitation of the technical scheme, the trolley body is fixedly connected with the medicine box, the medicine box is in threaded connection with the end cover, the liquid pump is fixedly connected in the medicine box, the liquid pump is fixedly connected with the vertical pipe, the vertical pipe penetrates through the top plate of the medicine box, the vertical pipe is fixedly connected with one end of a symmetrical hose, and the other ends of the hoses are respectively fixedly connected with the medicine pipes.

As a further limitation of the technical scheme, the square plate is fixedly connected with the car body, the square plate is fixedly connected with the L plate, the L plate is fixedly connected with the guide block, the L plate is fixedly connected with a symmetrical round shaft, the square plate is fixedly connected with the first square rod, the symmetrical round shaft is respectively and rotationally connected with the straight slot, the symmetrical straight slot is respectively and fixedly connected with the corresponding medicine tube, the symmetrical medicine tube is respectively and fixedly connected with the uniformly distributed spray heads, the third square rod is respectively and fixedly connected with the U frame, the second square rod is fixedly connected with the U frame, the second square rod passes through the L plate, the first square rod is fixedly connected with the first square rod, the first square rod is matched with the rotary wheel, and the first square rod is matched with the first square rod.

As a further limitation of the technical scheme, the output shaft of the motor is fixedly connected with the driving rotating wheel, and the driving rotating wheel is connected with the rotating wheel through a belt.

As a further limitation of the technical scheme, the specific flow of the third step is as follows: the motor drives the bevel gears I to rotate, the bevel gears I drive one bevel gear II to rotate, the bevel gears II drive the square rod III to rotate, the square rod III drives the other bevel gear II to rotate, the square rod III drives the driving wheel to rotate, the driving wheel moves along the track, and the vehicle body moves forwards.

As a further limitation of the present technical solution, the reverse movement principle in the third step is as follows: the round bar is positioned at one end of the chute at the initial position, the round head of one round head bar is positioned in the hemispherical hole, the first bevel gear is meshed with the second bevel gear, the L-shaped bar moves along the straight chute when the bed body moves forwards, the L-shaped bar does not move any more when contacting the end part of the straight chute, the round bar is moved along the chute, the round bar is used for driving the U plate to move along the second square bar, the U plate is used for driving the second bevel gear to move along the third square bar, the U plate drives the round head rod II, the springs and the fixed blocks to move, one round head rod II moves along the hemispherical holes, one round head rod II drives one fixed block to move, one fixed block stretches one spring, the square rod II continues to move, the other round head rod II gradually enters the hemispherical holes under the elastic action of the other spring, the round rod IV moves to the other end of the chute, and the bevel gear I is meshed with the other bevel gear II.

As a further limitation of the present technical solution, the specific flow of the fourth step is: the motor drives the initiative runner to rotate, and the initiative runner drives through the belt the runner rotates, the runner drives round bar one swings, round bar one starts to contact round bar one makes round bar one upwards moves, when round bar one moves relatively and crosses round bar one intermediate position, under the action of gravity, round bar one moves down, realizes round bar one reciprocates, round bar one drives square bar one follows the guide block reciprocating motion, square bar one drives U frame reciprocating motion, U frame drives round bar three follows straight mouth groove reciprocating motion, round bar three drives straight mouth groove reciprocating motion, straight mouth groove drives the medicine pipe and the reciprocal swing of shower nozzle, the liquid pump will be carried in the standpipe, through the hose gets into the medicine pipe is followed the shower nozzle is spouted.

Compared with the prior art, the invention has the advantages and positive effects that:

the device realizes that the whole device moves along the track direction and simultaneously realizes the reciprocating swing of the spray head and the spraying of the medicine through the arrangement of the motor. The structure of the power system is simplified, and the utilization rate of the motor is improved.

The device uses the spring to keep the second round head rod to be matched with the hemispherical hole, so that the first bevel gear is meshed with the second bevel gear. When the L-shaped rod contacts the end part of the straight groove, the limiting by using the chute is realized, the second round head rod is separated from the hemispherical hole, the second round head rod enters the hemispherical hole, the first bevel gear is meshed with the second bevel gear, and the reverse movement of the vehicle body is realized.

The method is skillfully designed, realizes replacing manpower, realizes automatic pesticide spraying on the sapling, and has more uniform pesticide spraying compared with manual pesticide spraying. Saving manpower and improving working efficiency.

Drawings

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

Fig. 2 is a schematic perspective view of a second embodiment of the present invention.

Fig. 3 is a schematic view of a partially cut-away perspective view of the present invention.

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

Fig. 5 is a schematic partial perspective view of the second embodiment of the present invention.

Fig. 6 is a schematic diagram of a partial perspective view of the present invention.

Fig. 7 is a schematic diagram of a partial perspective view of the present invention.

Fig. 8 is a schematic diagram of a partial perspective view of the present invention.

Fig. 9 is a schematic diagram of a partial perspective view of the present invention.

Fig. 10 is a schematic diagram of a partial perspective view of the present invention.

Fig. 11 is a schematic view of a partial perspective view of the present invention.

Fig. 12 is a schematic perspective view of a third embodiment of the present invention.

In the figure: 1. the track, 2, straight groove, 3, hose, 4, medicine chest, 5, end cap, 6, driven wheel, 7, driving wheel, 8, car body, 9, motor, 10, standpipe, 11, liquid pump, 12, L plate, 13, guide block, 14, round shaft, 15, square plate, 16, runner, 17, round bar one, 18, round bar two, 19, square bar one, 20, round bar one, 21, straight mouth groove, 22, medicine tube, 23, shower nozzle, 24, round bar three, 25, U frame, 26, square bar two, 27, frame, 28, hemispherical hole, 29, L-shaped bar, 30, square bar three, 31, bevel gear one, 32, bevel gear two, 33, square hole, 34, square block, 35, chute, 36, U plate, 37, round hole, 38, square groove, 39, round bar four, 40, fixed block, 41, spring, 42, round bar two.

Description of the embodiments

One embodiment of the present invention will be described in detail below with reference to the attached drawings, but it should be understood that the scope of the present invention is not limited by the embodiment.

As shown in fig. 1-12, the present invention includes the steps of:

step one: installing the track 1 into a seedling greenhouse;

step two: adding a proper amount of pesticide into the pesticide box 4;

step three: the motor 9 is turned on, so that the vehicle body 8 moves to the other end along one end of the track 1 and then reversely moves to an initial position;

step four: when the motor 9 is turned on, the liquid pump 11 is turned on, so that the liquid medicine is sprayed out of the spray head 23, the spray head 23 can swing reciprocally, and the liquid medicine is sprayed onto the sapling, so that automatic medicine spraying is realized.

The vehicle body 8 is connected with symmetrical driven wheels 6 through bearings, the vehicle body 8 is connected with symmetrical driving wheels 7 through bearings, the symmetrical driving wheels 7 are respectively and fixedly connected with a square rod III 30, the vehicle body 8 is fixedly connected with a square rod II 26, the square rod II 26 is provided with a hemispherical hole 28, the vehicle body 8 is fixedly connected with a frame 27, the symmetrical driven wheels 6 are respectively arranged in the track 1, the symmetrical driving wheels 7 are respectively arranged in the track 1, the track 1 is fixedly connected with the straight groove 2, the vehicle body 8 is fixedly connected with the motor 9, an output shaft of the motor 9 penetrates through the vehicle body 8, and an output shaft of the motor 9 is fixedly connected with the first bevel gear 31.

The square bevel gear box comprises a box body 27, wherein a square 34 is arranged in the box body 27, a chute 35 is arranged in the square 34, the square 34 is fixedly connected with a symmetrical L-shaped rod 29, the transverse rods of the symmetrical L-shaped rod 29 respectively penetrate through the box body 27, the symmetrical L-shaped rods 29 are respectively arranged in the straight grooves 2, round rods four 39 are arranged in the chute 35, the round rods four 39 are fixedly connected with a U plate 36, the U plate 36 is provided with square grooves 38 and symmetrical round holes 37, the symmetrical round holes 37 are respectively communicated with the square grooves 38, square rods two 26 are arranged in the square grooves 38, round rods two 42 are respectively and fixedly connected with fixed blocks 40, the symmetrical fixed blocks 40 are respectively and fixedly connected with one ends of springs 41, the symmetrical round rods two 42 are respectively sleeved with the symmetrical springs 41, the U plate 36 are respectively and fixedly connected with the U plate 36, the U plate 36 is connected with a center shaft of a symmetrical bevel gear II, the center shaft of the bevel gear II is respectively, the symmetrical bevel gear II is provided with a square bevel gear 32, and the square bevel gear II 32 is respectively provided with a square bevel gear II 33, and the square bevel gear II is respectively provided with a symmetrical bevel gear 32.

The second round rod 42 mates with the hemispherical aperture 28.

The utility model discloses a medical kit, including automobile body 8, medical kit 4 threaded connection end cover 5, medical kit 4 internal fixation connection liquid pump 11, liquid pump 11 fixed intercommunication standpipe 10, standpipe 10 passes the roof of medical kit 4, the one end of the hose 3 of standpipe 10 fixed intercommunication symmetry, the symmetry the other end of hose 3 is fixed intercommunication medical tube 22 respectively.

The utility model provides a car body 8 fixed connection square board 15, square board 15 fixed connection L board 12, L board 12 fixed connection guide block 13, L board 12 fixed connection symmetrical circle axle 14, square board 15 bearing connection runner 16, runner 16 fixed connection a set of evenly distributed's round bar one 17, the symmetry circle axle 14 is rotated respectively and is connected straight mouth groove 21, the symmetry straight mouth groove 21 is fixed connection respectively corresponding medicine pipe 22, the symmetry medicine pipe 22 is fixed respectively and is linked together a set of evenly distributed's shower nozzle 23, every straight mouth groove 21 is provided with round bar three 24 respectively, the symmetry round bar three 24 is fixed connection U frame 25 respectively, U frame 25 fixed connection round bar two 18, round bar two 18 pass L board 12, U frame 25 fixed connection square bar one 19, square bar one 19 passes guide block 13, square bar one 19 fixed connection round head rod one 20, 16 a set of round bar one 17 matches.

The output shaft of the motor 9 is fixedly connected with a driving rotating wheel, and the driving rotating wheel is connected with the rotating wheel 16 through a belt.

The specific flow of the third step is as follows: the motor 9 drives the bevel gears I31 to rotate, the bevel gears I31 drives one bevel gear II 32 to rotate, the bevel gears II 32 drive the square rod III 30 to rotate, the square rod III 30 drives the other bevel gear II 32 to rotate, the square rod III 30 drives the driving wheel 7 to rotate, the driving wheel 7 moves along the track 1, and the vehicle body 8 moves forwards.

The reverse movement principle in the third step is as follows: in the initial position, the round bar four 39 is located at one end of the chute 35, the round head of one round bar two 42 is located in the hemispherical hole 28, the first bevel gear 31 is meshed with one round bar two 32, when the car body 8 moves forwards, the L-shaped bar 29 moves along the straight chute 2, when the L-shaped bar 29 contacts the end of the straight chute 2, the L-shaped bar 29 and the square block 34 are not moved any more, the round bar four 39 moves along the chute 35, the round bar four 39 drives the U plate 36 to move along the second square bar 26, the U plate 36 drives the bevel gear two 32 to move along the third square bar 30, the U plate 36 drives the round bar two 42, the spring 41 and the fixed block 40 to move, the round bar two 42 moves along the hemispherical hole 28, the round bar two 42 drives the fixed block 40 to move, the fixed block 40 stretches the round bar one round bar 41 to move along the square bar two springs 41, and the round bar two round bars 41 continue to move under the other hemispherical bar 35, and the other round bar 32 moves under the action of the other round bar two round bar 41 and the other round bar 35 gradually moves into the hemispherical hole 32.

The specific flow of the fourth step is as follows: the motor 9 drives the driving rotating wheel to rotate, the driving rotating wheel drives the rotating wheel 16 to rotate through a belt, the rotating wheel 16 drives the round rod one 17 to swing, when the round rod one 17 starts to contact the round rod one 20, the round rod one 20 moves upwards, when the round rod one 20 moves relatively to the middle position of the round rod one 17, under the action of gravity, the round rod one 20 moves downwards, the round rod one 20 moves upwards and downwards, the round rod one 20 drives the square rod one 19 to reciprocate along the guide block 13, the square rod one 19 drives the U frame 25 to reciprocate, the U frame 25 drives the round rod two 18 to reciprocate, the U frame 25 drives the round rod three 24 to reciprocate along the straight slot 21, the straight slot 21 drives the medicine tube 22 and the spray head 23 to reciprocate, the liquid pump 11 conveys medicine into the medicine tube 10 through the guide block 13, and the spray head 23 enters the spray tube 23 from the spray tube 22.

The working flow of the invention is as follows: the track 1 is installed in a seedling greenhouse.

The end cover 5 is unscrewed, a proper amount of pesticide is added into the medicine box 4, and the end cover 5 is screwed.

In the initial position, the fourth round bar 39 is positioned at one end of the chute 35, the round head of the second round bar 42 is positioned in the hemispherical hole 28, and the first bevel gear 31 is meshed with the second bevel gear 32.

The motor 9 is turned on, the motor 9 drives the first bevel gear 31 to rotate, the first bevel gear 31 drives the second bevel gear 32 to rotate, the second bevel gear 32 drives the third square rod 30 to rotate, the third square rod 30 drives the second bevel gear 32 to rotate, the third square rod 30 drives the driving wheel 7 to rotate, the driving wheel 7 moves along the track 1, and forward movement of the vehicle body 8 is achieved. When the car body 8 moves to the other end along one end of the track 1, the L-shaped rod 29 moves along the straight groove 2, when the L-shaped rod 29 contacts the end of the straight groove 2, the L-shaped rod 29 and the square block 34 do not move any more, the round rod IV 39 moves along the chute 35, the round rod IV 39 drives the U plate 36 to move along the square rod II 26, the U plate 36 drives the bevel gear II 32 to move along the square rod III 30, the U plate 36 drives the round rod II 42, the spring 41 and the fixed block 40 to move, one round rod II 42 moves along the hemispherical hole 28, one round rod II 42 drives one fixed block 40 to move, one fixed block 40 stretches one spring 41, the square rod II 26 continues to move, under the elastic action of the other spring 41, the other round rod II 42 gradually enters the hemispherical hole 28, the round rod IV moves to the other end of the chute 35, and the bevel gear I31 is meshed with the other bevel gear II 32. The vehicle body 8 is reversely moved to the initial position.

The motor 9 drives the driving rotating wheel to rotate, the driving rotating wheel drives the rotating wheel 16 to rotate through a belt, the rotating wheel 16 drives the round rod one 17 to swing, when the round rod one 17 starts to contact the round rod one 20, the round rod one 20 moves upwards, when the round rod one 20 moves relatively through the middle position of the round rod one 17, the round rod one 20 moves downwards under the action of gravity, the round rod one 20 moves up and down repeatedly, the round rod one 20 drives the square rod one 19 to reciprocate along the guide block 13, the square rod one 19 drives the U frame 25 to reciprocate, the U frame 25 drives the round rod two 18 to reciprocate, the U frame 25 drives the round rod three 24 to reciprocate along the straight slot 21, the round rod three 24 drives the straight slot 21 to reciprocate, the straight slot 21 drives the medicine tube 22 and the spray head 23 to reciprocate, the liquid pump 11 conveys medicine into the vertical tube 10, and the medicine tube 22 is fed into the medicine tube through the hose 3 and sprayed out from the spray head 23.

The device realizes that the whole device moves along the direction of the track 1 and simultaneously realizes the reciprocating swing of the spray head 23 and the spraying of the medicine by arranging the motor 9. The power system structure is simplified, and the utilization rate of the motor 9 is improved.

The device uses the spring 41 to keep the second round head rod 42 to be matched with the hemispherical hole 28, so that the first bevel gear 31 is meshed with the second bevel gear 32. When the L-shaped rod 29 contacts the end part of the straight groove 2, the limiting is realized by using the chute 35, one round head rod II 42 is separated from the hemispherical hole 28, the other round head rod II 42 enters the hemispherical hole 28, the bevel gear I31 is meshed with the other bevel gear II 32, and the reverse movement of the vehicle body 8 is realized.

The above disclosure is merely illustrative of specific embodiments of the present invention, but the present invention is not limited thereto, and any variations that can be considered by those skilled in the art should fall within the scope of the present invention.

Claims

1. The forestry seedling culture spraying method is characterized by comprising the following steps of:

step one: installing the track (1) into a seedling greenhouse;

step two: adding a proper amount of pesticide into the pesticide box (4);

step three: the motor (9) is turned on, so that the vehicle body (8) moves to the other end along one end of the track (1) and then reversely moves to an initial position;

step four: the motor (9) is turned on, and meanwhile, the liquid pump (11) is turned on, so that the liquid medicine is sprayed out of the spray head (23), the spray head (23) can swing reciprocally, the liquid medicine is sprayed onto the sapling, and automatic medicine spraying is realized;

the automobile body (8) bearing connection symmetry follow driving wheel (6), automobile body (8) bearing connection symmetry action wheel (7), symmetry action wheel (7) fixed connection square pole three (30) respectively, automobile body (8) fixed connection square pole two (26), square pole two (26) are provided with hemisphere hole (28), automobile body (8) fixed connection framework (27), symmetry follow driving wheel (6) set up respectively in track (1), symmetry action wheel (7) set up respectively in track (1), track (1) fixed connection straight flute (2), automobile body (8) fixed connection motor (9), the output shaft of motor (9) passes automobile body (8), the output shaft fixed connection bevel gear (31) of motor (9);

a square block (34) is arranged in the frame body (27), a chute (35) is arranged in the square block (34), the square block (34) is fixedly connected with symmetrical L-shaped rods (29), the symmetrical cross rods of the L-shaped rods (29) respectively penetrate through the frame body (27), the symmetrical vertical rods of the L-shaped rods (29) are respectively arranged in the straight grooves (2), round rods (39) are arranged in the chute (35), U plates (36) are fixedly connected with the round rods (39), the U plates (36) are provided with square grooves (38) and symmetrical round holes (37), the symmetrical round holes (37) are respectively communicated with the square grooves (38), round head rods (42) are respectively and fixedly connected with the round head rods (42) in the round holes (37), one ends of springs (41) are respectively and fixedly connected with the round head rods (40), the round head rods (41) are respectively and fixedly connected with the round head rods (41) of the round head rods (41) respectively, the round head rods (41) are respectively and the round bevel gears (41) are respectively and fixedly connected with the round head rods (41) respectively and the round head rods (41) respectively, the central shaft of the symmetrical bevel gear II (32) is respectively provided with a square hole (33), the square rod III (30) passes through the symmetrical square holes (33), and the symmetrical bevel gear II (32) is matched with the bevel gear I (31);

the drug box is characterized in that the drug box (4) is fixedly connected with the vehicle body (8), the drug box (4) is in threaded connection with the end cover (5), a liquid pump (11) is fixedly connected in the drug box (4), the liquid pump (11) is fixedly communicated with a vertical pipe (10), the vertical pipe (10) penetrates through a top plate of the drug box (4), one end of a symmetrical hose (3) is fixedly communicated with the vertical pipe (10), and the other ends of the symmetrical hoses (3) are respectively fixedly communicated with a drug pipe (22);

the utility model provides a car body (8) fixed connection square board (15), square board (15) fixed connection L board (12), L board (12) fixed connection guide block (13), L board (12) fixed connection symmetry circle axle (14), square board (15) bearing connection runner (16), runner (16) fixed connection a set of evenly distributed's round bar one (17), symmetry circle axle (14) rotate respectively and connect straight mouth groove (21), symmetry straight mouth groove (21) fixed connection respectively correspond medicine pipe (22), symmetry medicine pipe (22) fixed connection respectively a set of evenly distributed shower nozzle (23), every straight mouth groove (21) are provided with round bar three (24) respectively, symmetry round bar three (24) fixed connection U frame (25) respectively, U frame (25) fixed connection round bar two (18), round bar two (18) pass L board (12), U frame (25) fixed connection straight mouth groove (21) respectively, symmetry medicine pipe (22) fixed connection respectively, symmetry medicine pipe (22) are respectively fixed connection a set of evenly distributed's shower nozzle (23), every straight mouth groove (21) is provided with round bar three (24) respectively, round bar three (24) fixed connection round bar one (19) respectively, round bar one (19) pass round bar one (20), said first round bar (20) mates with a set of said first round bars (17);

the specific flow of the third step is as follows: the motor (9) drives the first bevel gear (31) to rotate, the first bevel gear (31) drives one second bevel gear (32) to rotate, the second bevel gear (32) drives the third square rod (30) to rotate, the third square rod (30) drives the other second bevel gear (32) to rotate, the third square rod (30) drives the driving wheel (7) to rotate, and the driving wheel (7) moves along the track (1) to realize forward movement of the vehicle body (8);

the reverse movement principle in the third step is as follows: in the initial position, the round bar IV (39) is positioned at one end of the chute (35), the round head of the round bar IV (42) is positioned in the hemispherical hole (28), the bevel gear I (31) is meshed with the bevel gear II (32), when the vehicle body (8) moves forwards, the L-shaped bar (29) moves along the straight groove (2), when the L-shaped bar (29) contacts the end of the straight groove (2), the L-shaped bar (29) and the square block (34) are not moved any more, the round bar IV (39) moves along the chute (35), the round bar IV (39) drives the U plate (36) to move along the square bar II (26), the U plate (36) drives the bevel gear II (32) to move along the square bar III (30), the U plate (36) drives the round bar II (42), the spring (41) and the fixed block (40) to move, the round bar IV (42) continues to move along the hemispherical hole II (40), and gradually enabling the other round head rod II (42) to enter the hemispherical hole (28), enabling the round rod IV (39) to move to the other end of the chute (35), and enabling the bevel gear I (31) to engage with the bevel gear II (32).