CN108703057B

CN108703057B - Rice breeding big-arch shelter

Info

Publication number: CN108703057B
Application number: CN201810456796.XA
Authority: CN
Inventors: 汪旭敏
Original assignee: Daozhen Autonomous County Geshan Yutian Ecological Agriculture Development Co ltd
Current assignee: Daozhen Autonomous County Geshan Yutian Ecological Agriculture Development Co ltd
Priority date: 2018-05-14
Filing date: 2018-05-14
Publication date: 2020-06-09
Anticipated expiration: 2038-05-14
Also published as: CN108703057A

Abstract

The invention belongs to the technical field of rice planting, and particularly discloses a rice breeding greenhouse, which comprises a nutrition pool, wherein a plurality of frameworks are supported outside the nutrition pool, and a film for sealing the nutrition pool is covered on the frameworks; the middle part of the nutrition pool is provided with a liquid storage tank, the two ends of the liquid storage tank positioned in the length direction of the nutrition pool are arc-shaped, a plug plate is arranged in the liquid storage tank in a sealing and sliding manner from top to bottom, and the lower part of the liquid storage tank is distributed with a plurality of through holes communicated with the nutrition pool; the liquid reserve tank upper end is equipped with the carriage, and the both ends that lie in liquid reserve tank length direction on the carriage are equipped with branch, rotate on the branch and are equipped with the backing roll, and the outside cover of two backing rolls is equipped with the transfer chain, and the transfer chain outside is equipped with a plurality of connection ropes, and the one end of connecting the rope and keeping away from the transfer chain is equipped with the clamping jaw that is used for fixed nutrition dish. Compared with the prior art, the greenhouse can enable people to carry out breeding operation in the operating room, and the condition that people feel uncomfortable in the greenhouse during the breeding operation is greatly avoided.

Description

Rice breeding big-arch shelter

Technical Field

The invention belongs to the technical field of rice planting, and particularly discloses a rice breeding greenhouse.

Background

The rice breeding is to broadcast seeds in soil and maintain soil environment such as moisture, temperature and the like until rice seeds grow, and then to insert rice seedlings into paddy fields in an artificial mode. The method is already used for hundreds of thousands of years, belongs to a extensive breeding mode, and the growth of seedlings is easily influenced by the environment. In order to ensure that the seedlings of the rice can grow fast and healthily, greenhouse seedling is adopted at the current stage of rice seedling raising; the rice is raised in a greenhouse, a nutrient pool is usually arranged in the greenhouse, nutrient solution is put into the nutrient pool, and seeds are put into a nutrient disk which floats on the nutrient solution, so that the nutrient solution can not submerge the seeds and can provide nutrition for the seeds.

In the process of raising rice seedlings by using a greenhouse, operations such as sowing seeds into a nutrition tray, screening seedlings, supplementing nutrient solution and water and the like are required to be completed by people in the greenhouse, and particularly in the early stage of planting the seedlings, the management effect on the seedlings needs to be kept in the greenhouse for a long time. In order to ensure that the seeds have a good growth environment, the greenhouse is usually a high-temperature and high-humidity environment, and the seeds are usually cultured by combining organic fertilizer and chemical fertilizer, so that the greenhouse is not ventilated frequently, and the smell of the greenhouse is heavy; people can feel uncomfortable when working in the greenhouse for a long time. In addition, the seedling of rice is mostly grown in the early spring stage, the weather condition is unstable, and the temperature is high and low, so that the temperature in the greenhouse is easy to be unstable, and the growth of seeds and the growth of seedlings are influenced. Meanwhile, the nutrient solution in the greenhouse cannot flow, so that the added nutrient substances cannot be fully dissolved, the nutrient substances are also unevenly distributed in the nutrient solution, and the nutrition required in the seedling raising process cannot be balanced and comprehensive.

Disclosure of Invention

The invention aims to provide a rice breeding greenhouse, which aims to solve the problem that people are easy to feel uncomfortable when performing rice seedling raising operation in the greenhouse.

In order to achieve the purpose, the basic scheme of the invention is as follows: the rice breeding greenhouse comprises a nutrition pool, wherein a plurality of frameworks are supported outside the nutrition pool, and films for sealing the nutrition pool are covered on the frameworks; the middle part of the nutrition pool is provided with a liquid storage tank, the two ends of the liquid storage tank positioned in the length direction of the nutrition pool are arc-shaped, a plug plate is arranged in the liquid storage tank in a sealing and sliding manner from top to bottom, and the lower part of the liquid storage tank is distributed with a plurality of through holes communicated with the nutrition pool; the upper end of the liquid storage box is provided with a supporting frame, two ends of the supporting frame, which are positioned in the length direction of the liquid storage box, are provided with supporting rods, supporting rollers are rotatably arranged on the supporting rods, a conveying chain is sleeved outside the two supporting rollers, a plurality of connecting ropes are arranged outside the conveying chain, and one ends of the connecting ropes, which are far away from the conveying chain, are provided with clamping jaws for fixing a nutrition disc; a stepping motor is arranged on the supporting frame, a worm wheel is fixed on an output shaft of the stepping motor, the upper end of the plug plate is rotatably connected with a rotating rod, the upper end of the rotating rod is a worm meshed with the worm wheel, and a gear meshed with the worm wheel is rotatably arranged at the position where the lower end of the worm is connected with the rotating rod; a transverse block is fixedly arranged on the support frame above the worm, a hydraulic cavity is arranged in the transverse block, a sliding block which is in sealed sliding communication with the hydraulic cavity is arranged above the worm, and an elastic part is arranged between the sliding block and the upper end of the hydraulic cavity; a sliding sleeve which is in sealed sliding communication with the hydraulic cavity is arranged above the stepping motor, the lower end of the sliding sleeve is rotatably connected with a conveying wheel which is used for being meshed with the inside of a conveying chain, a key groove hole is formed in the center of the conveying wheel, and a key shaft which is used for being matched with the key groove hole is arranged at the upper end of the stepping motor; one end of the nutrition pond is provided with an operation chamber, the operation chamber comprises a baffle plate used for separating the interior of the greenhouse and a door frame communicated with the exterior of the greenhouse, and a door is arranged on the door frame.

The working principle of the basic scheme is as follows: when the greenhouse is used for breeding rice, the stepping motor is electrified to rotate forwards, the stepping motor rotates forwards to drive the worm wheel to rotate forwards, the worm wheel rotates forwards to act on the worm to move downwards, the worm moves downwards to drive the rotating rod to move downwards, so that the plug plate is pushed to move downwards in the liquid storage tank, and when the plug plate moves downwards to the bottom of the liquid storage tank, the stepping motor is powered off.

When various operations are carried out in the greenhouse, the door can be opened and enters the operation chamber through the door, and people can carry out breeding operations in the operation chamber. Before breeding the rice, the required nutrient solution of rice seedling is poured into in the nutrition pond, puts into the rice seed in the nutrition dish, puts into the nutrition pond with the nutrition dish, and the nutrition pond will float on the nutrient solution, and is fixed with nutrition dish one end accessible clamping jaw, connects rope and clamping jaw and can couple together nutrition dish and transfer chain.

At the moment, the stepping motor is electrified to enable the stepping motor to rotate reversely, the stepping motor rotates reversely to drive the worm gear to rotate reversely, the worm gear rotates reversely to move upwards under the action of the worm, the worm moves upwards to drive the rotating rod and the plug plate to move upwards, the plug plate is connected in the liquid storage tank in a sealing and sliding mode, the plug plate moves upwards to suck nutrient solution in the nutrient solution pool into the liquid storage tank through the through hole in the lower portion of the liquid storage tank, and therefore the liquid level of the nutrient solution in the nutrient solution pool is lowered, and the nutrient disc floating on the nutrient solution is lowered. The worm moves upwards to touch the sliding block above the worm, so that the sliding block moves upwards in the hydraulic cavity, liquid in the hydraulic cavity is pushed to transfer, the sliding sleeve moves downwards, the conveying wheel at the lower end of the sliding sleeve moves downwards after the sliding sleeve moves downwards and is meshed with the inside of the conveying chain, the key groove hole moves downwards to be matched with the key shaft while the conveying wheel moves downwards, the key shaft is connected with an output shaft of the stepping motor, the key shaft rotates under the action of the stepping motor, the key groove hole is matched with the key shaft, the key shaft drives the conveying wheel to rotate, and the conveying wheel is rotatably connected with the sliding sleeve, so that the conveying wheel rotates without affecting the sliding sleeve. After the worm shifts up the touching slider, the worm wheel will be connected with gear engagement, again because gear and bull stick rotate to be connected, the worm wheel drives gear rotation this moment and will not make worm wheel or bull stick rotate, the cock board will not remove again, the position of worm, bull stick and cock board this moment will not change.

The conveying wheel is meshed with the inside of the conveying chain, so that the conveying chain can rotate when the conveying wheel rotates, the supporting roller can support the conveying chain, the conveying chain is conveyed along the outer end of the upper part of the water storage tank, and the nutrition plate can move in the nutrition pool when the conveying chain rotates, so that the nutrition plate in the operating room is conveyed to the inside of the greenhouse; because the liquid level of the nutrient solution is lowered at the moment, the baffle of the operation chamber cannot influence the movement of the nutrient plate. And after the nutrition pond is filled with the nutrition plate, the nutrition plate in the operation chamber enters the greenhouse, the stepping motor rotates forwards to drive the worm gear to rotate forwards, and the worm gear rotates forwards to act on the worm to move downwards. The worm moves downwards to stop acting on the sliding block, the sliding block moves downwards under the action of the elastic force of the elastic piece, liquid in the hydraulic cavity is transferred, the sliding sleeve moves upwards, the conveying wheel moves upwards to stop being meshed with the conveying chain, the key groove hole does not move upwards to be matched with the key shaft, the stepping motor cannot drive the conveying wheel to rotate at the moment, and the conveying wheel does not drive the conveying chain to move. The worm moves down and drives the rotating rod to move down, the plug plate is pushed to move down in the liquid storage box, the plug plate moves down to the bottom of the liquid storage box, all nutrient solution enters the nutrient pool through the through holes, the liquid level of the nutrient solution in the nutrient pool rises, the nutrient disc floating on the nutrient solution rises along with the nutrient solution, the nutrient solution provides nutrition for seeds in the nutrient disc, and the operating room is separated from the interior of the greenhouse through the baffle and the nutrient solution, so that the growth of the seeds is facilitated.

In the seed breeding process, need supply nutrient solution, when screening, supplementary operation such as moisture to the seedling that grows out, people can go on in the control chamber, in the operation process, only need start step motor reversal, in the nutrient solution will get into the liquid storage tank, the transfer chain is followed by the transfer gear conveying and is removed, is convenient for operate nutrition dish. After the operation is finished, the stepping motor is started to rotate positively to restore the nutrient disc and the nutrient solution to the original positions.

The beneficial effect of this basic scheme lies in:

1. in the process of raising rice seedlings by using the greenhouse, people can complete seedling raising operation and management only in the operating room without entering the greenhouse, and the situation that people are uncomfortable in the greenhouse environment for a long time is avoided.

2. In the operation process at every turn, the nutrient solution in the nutrient solution pond will advance into the storage water tank, returns in the nutrient solution pond from the storage water tank after the operation is accomplished again, and the nutrient solution carries out abundant flow to make nutrient substance fully dissolve, the nutrient substance in the nutrient solution distributes evenly, and then makes the nutrition of rice seedling process balanced.

3. When the greenhouse is used for sowing rice seeds, the rice seeds and the nutrition plate only need to be transported to the operation room, the operation room only needs to be placed after the sowing is finished, the nutrition plate does not need to be moved manually in a large quantity, and the output of manpower is greatly reduced. When the rice seedlings need to be transplanted after growing, the rice seedlings do not need to be moved and carried manually, and time and labor are saved.

Compared with the prior art, the greenhouse can enable people to carry out breeding operation in the operating room, and the condition that people feel uncomfortable in the greenhouse during the breeding operation is greatly avoided.

Furthermore, a supporting plate is arranged at the top of the framework along the position corresponding to the length center line of the nutrition pool, first solar panels are hinged to two sides of the lower end of the supporting plate, one ends, far away from the supporting plate, of the first solar panels are hinged to second solar panels, pull ropes are fixed at the hinged positions of the first solar panels and the second solar panels, pressure holes are formed in two sides of the upper end of the supporting plate, the pull ropes penetrate through the pressure holes, the other ends of the pull ropes drop at the end portion of the greenhouse, and a storage battery used for storing solar energy is.

When illumination intensity was too big, pulling second solar panel, first solar panel will be pulled to the second solar panel, makes first solar panel and second solar panel all cover at the top of big-arch shelter, shelters from sunshine. The first solar panel and the second solar panel can also collect solar energy and store the solar energy through the storage battery. When illumination intensity is not strong, can pull the one end that the stay cord droops, make first solar panel and second solar panel rotate and with a piece laminating to make solar panel not influence the inside illumination of big-arch shelter.

Further, be equipped with the spring in the pressure hole, be equipped with on the spring with pressure hole inner wall complex piece, skeleton internal fixation has temperature regulator, and temperature regulator and step motor all link with the battery electricity. The setting of piece and spring is convenient for fix the position of stay cord, and temperature regulator can be convenient for adjust the inside temperature of big-arch shelter, and temperature regulator and step motor's power provides for the battery, need not outside switch on, and the electric energy is saved very.

Further, the key groove hole is a spline groove hole, the key shaft is a spline shaft, and the elastic part is a supporting spring. The spline shaft and the spline groove hole are more beneficial to matching in relative rotation because the spline shaft always rotates along with the output shaft of the stepping motor; the supporting spring has a simple structure and is convenient to install and use.

Furthermore, the through holes are uniformly distributed at the lower part of the liquid storage tank, one-way valves are arranged in the through holes, and the directions of the two adjacent one-way valves are opposite. The nutrient solution uniformly enters the liquid storage tank through the one-way valve and uniformly flows into the nutrient pool through the adjacent one-way valve, the further operation process is quick, and the nutrient solution can be further fully mixed.

Drawings

FIG. 1 is a schematic structural diagram of a rice breeding greenhouse according to an embodiment of the present invention;

fig. 2 is a sectional view of the structure at a-a in fig. 1.

Detailed Description

The present invention will be described in further detail below by way of specific embodiments:

reference numerals in the drawings of the specification include: the device comprises a framework 10, a film 11, a nutrient solution pool 20, a liquid storage tank 21, a one-way valve 22, a plug plate 23, a rotating rod 24, a gear 25, a worm 26, a supporting frame 30, a supporting rod 31, a supporting roller 32, a conveying chain 33, a connecting rope 34, a clamping jaw 35, a conveying wheel 40, a key groove hole 41, a stepping motor 42, a worm wheel 43, a key shaft 44, a cross block 50, a hydraulic cavity 51, a sliding block 52, an elastic piece 53, a sliding sleeve 54, an operating chamber 60, a baffle plate 61, a door 62, a supporting plate 70, a first solar panel 71, a second solar panel 72, a pull rope 73, a pressure hole 74, a storage battery 75 and a temperature regulator 76.

As shown in fig. 1 and 2, the rice breeding greenhouse comprises a nutrition pool 20, a plurality of frameworks 10 are supported outside the nutrition pool 20, the frameworks 10 are semicircular, two ends of the frameworks are fixed on two sides of the width of the nutrition pool 20, the frameworks 10 are uniformly arranged in the length direction of the nutrition pool 20 at intervals, and the frameworks 10 are covered with a film 11 for sealing the nutrition pool 20. A liquid storage tank 21 is arranged in the middle of the nutrition pool 20, two ends of the liquid storage tank 21 in the length direction are arc-shaped, a plug plate 23 is arranged in the liquid storage tank 21 in a vertically sealed sliding mode, and a plurality of through holes communicated with the nutrition pool 20 are distributed in the lower portion of the liquid storage tank 21; the through holes are uniformly distributed at the lower part of the liquid storage tank 21, the check valves 22 are arranged in the through holes, and the directions of the two adjacent check valves 22 are opposite. Liquid reserve tank 21 upper end has set up carriage 30, the both ends that lie in 21 length direction of liquid reserve tank on carriage 30 have set up branch 31, support roller 32 has been installed through the bearing rotation on branch 31, transfer chain 33 has been established to the outside cover of two support rollers 32, transfer chain 33 outside has set up a plurality of connection ropes 34, the one end that transfer chain 33 was kept away from to connection rope 34 has set up the clamping jaw 35 that is used for fixed nutrition dish, clamping jaw 35 includes that torsional spring connection's claw pole is passed through at two middle parts, the other end that can make two claw poles hard to two claw poles carries out the centre gripping to the nutrition dish.

A step motor 42 is arranged on the support frame 30, a worm wheel 43 is fixed on an output shaft of the step motor 42, the upper end of the plug plate 23 is rotatably connected with a rotating rod 24, the upper end of the rotating rod 24 is a worm 26 meshed with the worm wheel 43, and the central line of the worm wheel 43 is parallel to the central line of the worm 26, namely the axial direction is consistent; the worm 26 is externally provided with a spiral line groove, teeth of the worm wheel 43 are slidably clamped in the spiral line groove, the cross section of the teeth of the worm wheel 43 is in an inward concave arc shape in the embodiment, protrusions at the upper end and the lower end of the teeth of the worm wheel 43 are slidably clamped in the spiral line groove of the worm 26, and the gear 25 meshed with the worm wheel 43 is rotatably arranged at the position where the lower end of the worm 26 is connected with the rotating rod 24. A transverse block 50 is fixedly arranged above the worm 26 on the support frame 30, a hydraulic cavity 51 is arranged in the transverse block 50, a sliding block 52 which is in sealed sliding communication with the hydraulic cavity 51 is arranged above the worm 26, an elastic part 53 is arranged between the sliding block 52 and the upper end of the hydraulic cavity 51, and a support spring is selected as the elastic part 53 in the embodiment. A sliding sleeve 54 which is in sealed sliding communication with the hydraulic cavity 51 is arranged above the stepping motor 42, the lower end of the sliding sleeve 54 is rotatably connected with a conveying wheel 40 which is used for being meshed with the interior of the conveying chain 33, the center of the conveying wheel 40 is provided with a key slot hole 41, and the upper end of the stepping motor 42 is provided with a key shaft 44 which is used for being matched with the key slot hole 41; in this embodiment, the key slot 41 is a spline slot 41, and the key shaft 44 is a spline shaft, so as to be matched with each other. One end of the nutrition pool 20 is provided with an operation room 60, the operation room 60 comprises a baffle 61 for separating the interior of the greenhouse and a door frame communicated with the exterior of the greenhouse, and the door 62 is arranged on the door frame.

The top of skeleton 10 has set up the extension board 70 along the position that nutrition pond 20 length center line corresponds, the lower extreme both sides of extension board 70 all articulate there is first solar panel 71, the one end that first solar panel 71 kept away from extension board 70 articulates there is second solar panel 72, first solar panel 71 and the articulated department of second solar panel 72 are fixed with stay cord 73, the upper end both sides of extension board 70 have all set up pressure hole 74, stay cord 73 passes the tip of pressure hole 74 other end droppings at the big-arch shelter, set up the spring in the pressure hole 74, set up on the spring and pressed hole 74 inner wall complex piece, the piece can support stay cord 73 on pressing hole 74 is inside, thereby make the position of stay cord 73 can be fixed. The framework 10 is provided with a storage battery 75 for storing solar energy, a temperature regulator 76 is fixed inside the framework 10, and the temperature regulator 76 and the stepping motor 42 are both electrically connected with the storage battery 75.

When the greenhouse is used for breeding rice, the stepping motor 42 is electrified to rotate in the forward direction, the stepping motor 42 rotates in the forward direction to drive the worm wheel 43 to rotate in the forward direction, the worm wheel 43 rotates in the forward direction, teeth of the worm wheel 43 slide along the spiral line grooves of the worm 26, the worm wheel 43 can act on the worm 26 to move downwards when rotating, the worm 26 moves downwards to drive the rotating rod 24 to move downwards, so that the plug plate 23 is pushed to move downwards in the liquid storage tank 21, and when the plug plate 23 moves downwards to the bottom of the liquid storage tank 21, the stepping motor 42 is powered off.

When various operations are performed in the greenhouse, the door 62 can be opened to enter the operation chamber 60 through the door 62, and people can perform breeding operations in the operation chamber 60. Before breeding rice, the nutrient solution required for rice seedling raising is poured into the nutrient pond 20, rice seeds are put into the nutrient disk, the nutrient disk is put into the nutrient pond 20 and floats on the nutrient solution, one end of each claw rod provided with the torsion springs makes the other end of each claw rod clamp and fix the nutrient disk, and the connecting rope 34 and the clamping jaws 35 can connect the nutrient disk and the conveying chain 33.

In the process, the stepping motor 42 is electrified to rotate reversely, the stepping motor 42 rotates reversely to drive the worm wheel 43 to rotate reversely, the worm wheel 43 rotates reversely to act on the worm 26 to move upwards, the worm 26 moves upwards to drive the rotating rod 24 and the plug plate 23 to move upwards, and the plug plate 23 is connected in the liquid storage box 21 in a sealing and sliding manner, so that the plug plate 23 moves upwards to suck nutrient solution in the nutrient solution pool 20 into the liquid storage box 21 through part of the one-way valve 22, the liquid level of the nutrient solution in the nutrient solution pool 20 is lowered, and the nutrient plate floating on the nutrient solution is lowered. The worm 26 moves upwards to touch the upper slide block 52, the slide block 52 is pushed upwards to move the slide block 52 upwards in the hydraulic cavity 51, the slide block 52 pushes the liquid in the hydraulic cavity 51 to transfer, the sliding sleeve 54 moves downwards, the transmission wheel 40 at the lower end of the sliding sleeve 54 moves downwards to be meshed with the inside of the transmission chain 33 after the sliding sleeve 54 moves downwards, the key groove hole 41 of the transmission wheel 40 moves downwards to be matched with the key shaft 44 when the transmission wheel 40 moves downwards, the key shaft 44 is connected with the output shaft of the stepping motor 42, the key shaft 44 rotates under the action of the stepping motor 42, the key shaft 44 drives the transmission wheel 40 to rotate after the key groove hole 41 is matched with the key shaft 44, and the transmission wheel 40 is rotatably connected with the sliding sleeve 54, so that the transmission wheel 40 rotates without influencing the sliding sleeve 54. After the worm 26 moves up to touch the sliding block 52, the worm wheel 43 will be meshed with the gear 25, and since the gear 25 is rotationally connected with the rotating rod 24, the worm wheel 43 drives the gear 25 to rotate at the moment, so that the worm wheel 43 or the rotating rod 24 will not be rotated, the plug plate 23 will not move any more, and the positions of the worm 26, the rotating rod 24 and the plug plate 23 at the moment will not be changed.

The conveying wheel 40 is meshed with the inner part of the conveying chain 33, the conveying chain 33 is rotated by the rotation of the conveying wheel 40, the supporting roller 32 supports and conveys the conveying chain 33, the supporting roller 32 is rotationally connected with the supporting rod 31, the supporting roller 32 rotates along with the conveying of the conveying chain 33, the conveying chain 33 is conveyed along the outer end of the upper part of the water storage tank, and the nutrition plate moves in the nutrition pool 20 by the rotation of the conveying chain 33, so that the nutrition plate in the operation chamber 60 is conveyed to the inner part of the greenhouse; since the liquid level of the nutrient solution is lowered at this time, the movement of the nutrient plate is not affected by the baffle 61 of the operation chamber 60. After the nutrition plate is filled in the nutrition pool 20 and the nutrition plate in the operation room 60 enters the greenhouse, the stepping motor 42 is rotated forward, the stepping motor 42 rotates forward to drive the worm wheel 43 to rotate forward, and the worm wheel 43 rotates forward to act on the worm 26 to move down. The worm 26 moves downwards to stop acting on the sliding block 52, the sliding block 52 moves downwards under the elastic force of the elastic element 53, the liquid in the hydraulic cavity 51 is transferred, the sliding sleeve 54 moves upwards to enable the transmission wheel 40 to move upwards to stop being meshed with the transmission chain 33, the key groove hole 41 moves upwards to stop being matched with the key shaft 44, at the moment, the stepping motor 42 cannot drive the transmission wheel 40 to rotate, and the transmission wheel 40 stops driving the transmission chain 33 to move. The worm 26 moves downwards and simultaneously drives the rotating rod 24 to move downwards, the plug plate 23 is pushed to move downwards in the liquid storage box 21, the plug plate 23 moves downwards to the bottom of the liquid storage box 21, all nutrient solution enters the nutrient pool 20 through the through holes, the liquid level of the nutrient solution in the nutrient pool 20 rises, the nutrient disc floating on the nutrient solution rises along with the nutrient solution, the nutrient solution provides nutrition for seeds in the nutrient disc, and the operating room 60 is separated from the interior of the greenhouse through the baffle 61 and the nutrient solution, so that the growth of the seeds is facilitated.

In the seed breeding process, need supply nutrient solution, when screening, operation such as supplementary moisture to the seedling that grows out, people can go on in operation room 60, in the operation process, only need start step motor 42 reversal, during the nutrient solution will get into liquid reserve tank 21, transfer chain 33 was followed by the conveying of transfer gear 40 and is removed, is convenient for operate the nutrition dish. After the above operations are completed, the stepping motor 42 is started to rotate forward to restore the nutrient disk and the nutrient solution to the original positions.

When illumination intensity was too big, pulling second solar panel 72, first solar panel 71 will be pulled to second solar panel 72, makes first solar panel 71 and second solar panel 72 all cover at the top of big-arch shelter, shelters from sunshine. The first and second

solar panels

71, 72 may also collect solar energy and store it via a battery 75. When illumination intensity is not strong, can pull the one end that the stay cord droops, make first solar panel 71 and second solar panel 72 rotate and with a piece laminating to make solar panel not influence the inside illumination of big-arch shelter. The temperature regulator 76 can conveniently regulate the temperature inside the greenhouse, and the power supply of the temperature regulator 76 and the stepping motor 42 is provided for the storage battery 75, so that the external power supply is not needed, and the electric energy is greatly saved.

The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent.

Claims

1. The rice breeding greenhouse is characterized by comprising a nutrition pool, wherein a plurality of frameworks are supported outside the nutrition pool, and the frameworks are covered with a film for sealing the nutrition pool; the middle part of the nutrition pool is provided with a liquid storage tank, the two ends of the liquid storage tank positioned in the length direction of the nutrition pool are arc-shaped, a plug plate is arranged in the liquid storage tank in a sealing and sliding manner from top to bottom, and the lower part of the liquid storage tank is distributed with a plurality of through holes communicated with the nutrition pool; the upper end of the liquid storage box is provided with a supporting frame, two ends of the supporting frame, which are positioned in the length direction of the liquid storage box, are provided with supporting rods, supporting rollers are rotatably arranged on the supporting rods, a conveying chain is sleeved outside the two supporting rollers, a plurality of connecting ropes are arranged outside the conveying chain, and one ends of the connecting ropes, which are far away from the conveying chain, are provided with clamping jaws for fixing a nutrition disc; a stepping motor is arranged on the supporting frame, a worm wheel is fixed on an output shaft of the stepping motor, the upper end of the plug plate is rotatably connected with a rotating rod, the upper end of the rotating rod is a worm meshed with the worm wheel, and a gear meshed with the worm wheel is rotatably arranged at the position where the lower end of the worm is connected with the rotating rod; a transverse block is fixedly arranged on the support frame above the worm, a hydraulic cavity is arranged in the transverse block, a sliding block which is in sealed sliding communication with the hydraulic cavity is arranged above the worm, and an elastic part is arranged between the sliding block and the upper end of the hydraulic cavity; a sliding sleeve which is in sealed sliding communication with the hydraulic cavity is arranged above the stepping motor, the lower end of the sliding sleeve is rotatably connected with a conveying wheel which is used for being meshed with the inside of a conveying chain, a key groove hole is formed in the center of the conveying wheel, and a key shaft which is used for being matched with the key groove hole is arranged at the upper end of the stepping motor; one end of the nutrition pond is provided with an operation chamber, the operation chamber comprises a baffle plate used for separating the interior of the greenhouse and a door frame communicated with the exterior of the greenhouse, and a door is arranged on the door frame.

2. The rice breeding greenhouse as claimed in claim 1, wherein a support plate is arranged on the top of the framework along a position corresponding to the center line of the length of the nutrition pond, first solar panels are hinged to two sides of the lower end of the support plate, a second solar panel is hinged to one end, away from the support plate, of the first solar panel, pull ropes are fixed at the hinged positions of the first solar panel and the second solar panel, pressure holes are arranged on two sides of the upper end of the support plate, and the pull ropes penetrate through the pressure holes, and the other end of the pull ropes is hung on the end portion of the greenhouse; the framework is provided with a storage battery for storing solar energy.

3. The rice breeding greenhouse as claimed in claim 2, wherein a spring is arranged in the pressure hole, a support block matched with the inner wall of the pressure hole is arranged on the spring, a temperature regulator is fixed in the framework, and the temperature regulator and the stepping motor are electrically connected with the storage battery.

4. The rice breeding greenhouse of claim 1, wherein the key slot is a spline slot, the key shaft is a spline shaft, and the elastic member is a support spring.

5. The rice breeding greenhouse of claim 1, wherein the through holes are evenly distributed at the lower part of the liquid storage tank, one-way valves are arranged in the through holes, and the orientation of two adjacent one-way valves is opposite.