WO2022094954A1

WO2022094954A1 - Water saving apparatus for use in agricultural apparatus, and method for water saving apparatus

Info

Publication number: WO2022094954A1
Application number: PCT/CN2020/127225
Authority: WO
Inventors: 刘浩源; 郭舒璐; 田丙奇; 赵朋
Original assignee: 唐山圣因海洋科技有限公司
Priority date: 2020-11-06
Filing date: 2020-11-06
Publication date: 2022-05-12

Abstract

A water saving apparatus for use in an agricultural apparatus. The water saving apparatus comprises a water collecting box (1), wherein a filter plate (3) is arranged in the water collecting box (1); the filter plate (3) is obliquely arranged; a waterproof control box (6) is arranged on a side of the water collecting box (1); a water pump (7) is arranged in the waterproof control box (6); a communication pipe (8) is connected between a water inlet of the water pump (7) and the water collecting box (1); a water supply pipe (9) is connected to a water outlet of the water pump (7); a cylinder (10) is in communication with the water supply pipe (9); the cylinder (10) is fixedly connected to a side of the waterproof control box (6); a circular shaft (11) is vertically rotationally mounted inside the cylinder (10); a spiral blade (12) is fixedly mounted on an outer side of the circular shaft (11); and a back-and-forth structure is arranged at the top of the circular shaft (11). The water saving apparatus is easy to operate, can carry out sprinkler irrigation on a whole area, can be automatically controlled, can collect and utilize rainwater, and can save water resources. In addition, further disclosed is a usage method for the water saving apparatus.

Description

Water-saving equipment and method for agricultural equipment

technical field

The invention relates to the technical field of water-saving equipment, in particular to a water-saving equipment and a method for agricultural equipment.

Background technique

Water-saving equipment is a general term for mechanical equipment and storage equipment that meet the requirements of quality, safety and environmental protection, improve water use efficiency, and reduce water consumption; agricultural water saving is an important measure to alleviate water shortages, and the development of water-saving agriculture is a system of ideas The project aims to improve the utilization rate of precipitation and irrigation water and the water production efficiency. Water-saving measures include field ground irrigation, micro-irrigation, sprinkler irrigation, and irrigation during critical periods.

The existing sprinkler irrigation method cannot perform comprehensive sprinkler irrigation, cannot perform automatic control, and cannot collect and utilize rainwater, and cannot achieve the purpose of saving water resources.

SUMMARY OF THE INVENTION

The purpose of the present invention is to solve the shortcomings of the existing sprinkler irrigation method that cannot perform comprehensive sprinkler irrigation, cannot perform automatic control, cannot collect and utilize rainwater, and cannot achieve the purpose of saving water resources, and proposes a kind of agricultural equipment. Water apparatus and method therefor.

In order to achieve the above object, the present invention adopts the following technical solutions:

A water-saving equipment for agricultural equipment, comprising a water storage tank, a filter plate is arranged in the water storage tank, the filter plate is inclined, a waterproof control box is arranged on one side of the water storage tank, and a water pump is arranged in the waterproof control box, A connecting pipe is connected between the water inlet of the water pump and the water storage tank, the water outlet of the water pump is connected with a water supply pipe, and the water supply pipe is connected with a cylinder, the cylinder is fixedly connected to one side of the waterproof control box, and the cylinder is vertical A round shaft is rotatably installed, a spiral blade is fixedly installed on the outside of the round shaft, a reciprocating structure is arranged on the top of the round shaft, a support plate is fixedly connected to one side of the waterproof control box, and a metal tube is installed vertically on the support plate. The same hose is connected between the bottom end of the waterproof control box and the cylinder, the top of the metal pipe is threadedly connected with a nozzle, the reciprocating structure is connected with the metal pipe, the top of the waterproof control box is rotatably connected with a circular plate, and the top of the circular plate is rotated and connected with a pusher. The rod motor, the output shaft of the push rod motor is rotatably connected with a solar panel, the top of the circular plate is fixedly installed with a support rod, and the top of the support rod is rotatably connected with the bottom of the solar panel.

Preferably, a servo motor is fixedly connected to the top inner wall of the waterproof control box, a rotating rod is fixedly installed on the output shaft of the servo motor, and the top of the rotating rod is fixedly installed with the bottom of the circular plate.

Preferably, an annular block is fixedly installed on the top of the waterproof control box, a plurality of balls are embedded in the top of the annular block, and the plurality of balls are all in contact with the bottom of the circular plate.

Preferably, the reciprocating structure includes a cam, a turning rod, a rack and a gear, the cam is fixedly installed on the top of the circular shaft, one end of the turning rod is rotatably connected to the eccentric position of the cam, and the other end of the turning rod is rotatably connected to the rack, The gear is sleeved on the outside of the metal tube, and the rack is meshed with the gear.

Preferably, the bottom of the support plate is provided with a bottom slot, a bottom slot is slidably installed in the bottom slot, and the bottom of the bottom block is fixedly installed with the top of the rack.

Preferably, a placement board is fixedly installed in the waterproof control box, the power supply is placed on the top of the placement board, and the solar cell panel is connected to the power supply.

Preferably, the waterproof control box is provided with a controller, the water pump and the servo motor are both connected to the controller, and a box cover is rotatably installed on one side of the waterproof control box.

Preferably, a collar is fixedly installed on the top of the cylinder, the circular shaft is located in the collar, the outer side of the collar is threadedly connected with a screw, and the end of the screw extends into the collar and contacts the circular shaft.

Preferably, the top of the water tank is provided with a collection port, the collection port is a horn structure, one side of the water tank is connected with a dust tank, the bottom of the dust tank is connected with a pipe, and the bottom of the pipe is screwed with a cap.

Preferably, a method of using water-saving equipment for agricultural equipment, comprising the following steps:

S1: The rainwater can be collected through the water tank and the collection port. The filter plate can filter the turbidity in the rainwater. Since the filter plate is set at an inclination, the turbid residue is introduced into the dust tank along the filter plate, which can be used to filter the turbidity in the rainwater. The dust is collected, and the set pipe can discharge the dust;

S2: The water pump can pump out the water inside the water tank through the connecting pipe, and send it into the cylinder through the water supply pipe. The water flow enters the metal pipe through the hose, and then sprays out through the nozzle for sprinkler irrigation. The circular shaft rotates, the circular shaft drives the cam to rotate, the cam pulls the rack to reciprocate through the overturning rod, the rack drives the metal tube to reciprocate through the gear, and the metal tube drives the reciprocating rotation of the sprinkler, which can make the sprinkler reciprocate and sprinkle evenly;

S3: The solar panel converts light energy into electrical energy and stores it in the power supply, pushes the solar panel to turn over by the push rod motor, and supports it by the support rod, which can change the angle of the solar panel, and the servo motor drives the circular plate through the rotating rod Rotation, the circular plate drives the solar panel to rotate through the push rod motor and the support rod, so that the solar panel can be fully contacted with sunlight.

Compared with the prior art, the advantages of the present invention are:

(1) In this scheme, rainwater can be collected through the water tank and the collection port, and the set filter plate can filter the turbidity in the rainwater. Since the filter plate is set obliquely, the turbid residue is guided into the dust tank along the filter plate. , the dust can be collected, and the set pipeline can discharge the dust;

(2) The water pump can pump out the water inside the water tank through the connecting pipe, and send it into the cylinder through the water supply pipe. The water flow enters the metal pipe through the hose, and then sprays out through the nozzle for sprinkler irrigation. The water flow hits the spiral blade outside the circular shaft. Drive the circular shaft to rotate, the circular shaft pulls the rack to reciprocate through the cam and the turning rod, the rack drives the metal tube to reciprocate through the gear, and the metal tube drives the reciprocating rotation of the sprinkler, which can make the sprinkler reciprocate and spray evenly;

(3) The solar panel converts light energy into electrical energy and stores it in the power supply, pushes the solar panel to turn over by the push rod motor, and supports it by the support rod, which can change the angle of the solar panel, and the servo motor drives the circle through the rotating rod. The plate rotates, and the circular plate drives the solar panel to rotate through the push rod motor and the support rod, so that the solar panel can be fully contacted with sunlight.

The invention is convenient to operate, can carry out comprehensive sprinkling irrigation, can carry out automatic control, can collect and utilize rainwater, and can save water resources.

Description of drawings

1 is a schematic structural diagram of a water-saving equipment for agricultural equipment proposed by the present invention;

Fig. 2 is a schematic diagram of the structure of part A of a water-saving equipment for agricultural equipment proposed by the present invention;

3 is a schematic structural diagram of part B of a water-saving equipment for agricultural equipment proposed by the present invention;

Fig. 4 is a top-view structural schematic diagram of a cam, a turning rod, a rack, a gear and a metal pipe of a water-saving equipment for agricultural equipment proposed by the present invention;

5 is a schematic three-dimensional structural diagram of a waterproof control box and a box cover of a water-saving equipment for agricultural equipment proposed by the present invention.

In the figure: 1. Water tank; 2. Collection port; 3. Filter plate; 4. Dust tank; 5. Pipeline; 6. Waterproof control box; 7. Water pump; 8. Connecting pipe; 9. Water supply pipe; 10 , cylinder; 11, round shaft; 12, spiral blade; 13, nozzle; 14, metal pipe; 15, support plate; 16, bottom block; 17, bottom groove; 18, rack; 19, gear; 20 , hose; 21, flip lever; 22, cam; 23, collar; 24, screw; 25, placement plate; 26, power supply; 27, solar panel; 28, circular plate; 29, support rod; 30, push Rod motor; 31, ring block; 32, servo motor; 33, rotating rod; 34, box cover.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments.

Example 1

1-5, a water-saving equipment for agricultural equipment, including a water tank 1, a filter plate 3 is arranged in the water tank 1, the filter plate 3 is inclined, and one side of the water tank 1 is provided with a waterproof The control box 6, the waterproof control box 6 is provided with a water pump 7, a communication pipe 8 is connected between the water inlet of the water pump 7 and the water storage tank 1, the water outlet of the water pump 7 is connected with a water supply pipe 9, and the water supply pipe 9 is connected with a A cylinder 10, the cylinder 10 is fixedly connected to one side of the waterproof control box 6, a circular shaft 11 is installed vertically in the cylinder 10, the outer side of the circular shaft 11 is fixedly installed with a spiral blade 12, and the top of the circular shaft 11 is provided with a Reciprocating structure, one side of the waterproof control box 6 is fixedly connected with a support plate 15, a metal pipe 14 is installed on the support plate 15 for vertical rotation, and the same hose 20 is connected between the bottom end of the metal pipe 14 and the cylinder 10, The top end of the metal tube 14 is threadedly connected with the spray head 13, the reciprocating structure is connected with the metal tube 14, the top of the waterproof control box 6 is rotatably connected with a circular plate 28, and the top of the circular plate 28 is rotatably connected with a push rod motor 30. A solar cell panel 27 is rotatably connected to the output shaft, a support rod 29 is fixedly installed on the top of the circular plate 28 , and the top of the support rod 29 is rotatably connected to the bottom of the solar cell panel 27 .

In this embodiment, a servo motor 32 is fixedly connected to the top inner wall of the waterproof control box 6 , and a rotating rod 33 is fixedly installed on the output shaft of the servo motor 32 .

In this embodiment, an annular block 31 is fixedly installed on the top of the waterproof control box 6 , and a plurality of balls are embedded in the top of the annular block 31 , and the plurality of balls are all in contact with the bottom of the circular plate 28 .

In this embodiment, the reciprocating structure includes a cam 22 , a turning lever 21 , a rack 18 and a gear 19 . The cam 22 is fixedly installed on the top end of the circular shaft 11 , and one end of the turning lever 21 is rotatably connected to the eccentric position of the cam 22 . The other end is rotatably connected with the rack 18 , the gear 19 is sleeved on the outside of the metal tube 14 , and the rack 18 meshes with the gear 19 .

In this embodiment, the bottom of the support plate 15 is provided with a bottom slot 17 , and the bottom slot 17 is slidably installed with a bottom block 16 , and the bottom of the bottom block 16 is fixedly installed with the top of the rack 18 .

In this embodiment, a placing plate 25 is fixedly installed in the waterproof control box 6 , the power source 26 is placed on the top of the placing plate 25 , and the solar cell panel 27 is connected to the power source 26 .

In this embodiment, the waterproof control box 6 is provided with a controller, the water pump 7 and the servo motor 32 are both connected to the controller, and a box cover 34 is rotatably installed on one side of the waterproof control box 6 .

In this embodiment, a collar 23 is fixedly installed on the top of the cylinder 10 , the circular shaft 11 is located in the collar 23 , a screw 24 is threadedly connected to the outer side of the collar 23 , and the end of the screw 24 extends into the collar 23 and is connected with the collar 23 . The round shaft 11 is in contact.

In this embodiment, the top of the water storage tank 1 is provided with a collection port 2, and the collection port 2 is a horn structure.

In this embodiment, a dust storage box 4 is connected to one side of the water storage box 1 , a pipe 5 is connected to the bottom of the dust storage box 4 , and a cap is threadedly connected to the bottom of the pipe 5 .

Embodiment 2

1-5, a water-saving equipment for agricultural equipment, including a water tank 1, a filter plate 3 is arranged in the water tank 1, the filter plate 3 is inclined, and the turbid residue is introduced into the filter plate 3 along the filter plate 3. In the dust box 4, a waterproof control box 6 is arranged on one side of the water tank 1, a water pump 7 is arranged in the waterproof control box 6, and a communication pipe 8 is connected between the water inlet of the water pump 7 and the water tank 1, and the A water supply pipe 9 is connected to the water outlet, and a cylinder 10 is connected to the water supply pipe 9. The cylinder 10 is fixedly connected to one side of the waterproof control box 6, and a circular shaft 11 is installed vertically in the cylinder 10. A spiral blade 12 is fixedly installed on the outside, a reciprocating structure is arranged on the top of the circular shaft 11, a support plate 15 is fixedly connected to one side of the waterproof control box 6, and a metal tube 14 is installed vertically on the support plate 15. The bottom of the metal tube 14 The same hose 20 is communicated between the end and the cylinder 10, the top of the metal tube 14 is threadedly connected with the nozzle 13, the reciprocating structure is connected with the metal tube 14, the top of the waterproof control box 6 is rotatably connected with a circular plate 28, the circular plate 28 A push rod motor 30 is rotatably connected to the top of the push rod motor 30, a solar cell panel 27 is rotatably connected to the output shaft of the push rod motor 30, a support rod 29 is fixedly installed on the top of the circular plate 28, and the top of the support rod 29 is connected to the bottom of the solar cell panel 27. Turn the connection.

In this embodiment, a servo motor 32 is fixedly connected to the top inner wall of the waterproof control box 6, a rotating rod 33 is fixedly installed on the output shaft of the servo motor 32, and the top of the rotating rod 33 is fixedly installed with the bottom of the circular plate 28.

In this embodiment, an annular block 31 is fixedly installed on the top of the waterproof control box 6 , a plurality of balls are embedded in the top of the annular block 31 , and the plurality of balls are in contact with the bottom of the circular plate 28 , and the annular block 31 and the plurality of balls are arranged The circular plate 28 may be supported.

In this embodiment, the reciprocating structure includes a cam 22 , a turning lever 21 , a rack 18 and a gear 19 . The cam 22 is fixedly installed on the top of the circular shaft 11 , and one end of the turning lever 21 is rotatably connected to the eccentric position of the cam 22 . The other end is rotatably connected with the rack 18, the gear 19 is sleeved on the outside of the metal tube 14, the rack 18 meshes with the gear 19, the circular shaft 11 drives the cam 22 to rotate, and the cam 22 pulls the rack 18 to reciprocate through the overturning rod 21. .

In this embodiment, the bottom of the support plate 15 is provided with a bottom slot 17, and a bottom slot 16 is slidably installed in the bottom slot 17. The bottom of the bottom block 16 is fixedly installed with the top of the rack 18, and the bottom block 16 and the bottom slot 16 are slidably installed. The bottom slot 17 is slidably connected so that the rack 18 can only slide on the bottom of the support plate 15 .

In this embodiment, a placement plate 25 is fixedly installed in the waterproof control box 6, the power source 26 is placed on the top of the placement plate 25, and the solar cell panel 27 is connected to the power source 26, and the solar cell panel 27 converts light energy into electrical energy and stores it in within the power supply 26 .

In this embodiment, the waterproof control box 6 is provided with a controller, the water pump 7 and the servo motor 32 are both connected to the controller, and a box cover 34 is rotatably installed on one side of the waterproof control box 6, and the setting of the box cover 34 can facilitate the waterproofing Control box 6 operates inside.

In this embodiment, a collar 23 is fixedly installed on the top of the cylinder 10 , the circular shaft 11 is located in the collar 23 , a screw 24 is threadedly connected to the outer side of the collar 23 , and the end of the screw 24 extends into the collar 23 and is connected with the collar 23 . The round shaft 11 is in contact, and the round shaft 11 can be fixed by tightening the screw 24 to prevent the round shaft 11 from rotating.

In this embodiment, the top of the water tank 1 is provided with a collection port 2, the collection port 2 is a horn structure, and the collection port 2 can collect rainwater.

In this embodiment, the dust tank 4 is connected to one side of the water tank 1 , the bottom of the dust tank 4 is connected to the pipe 5 , and the bottom of the pipe 5 is screwed with a cap, and the turbid residue is guided into the dust along the filter plate 3 In the box 4, dust can be collected, and the installed pipe 5 can discharge the dust.

In this embodiment, a method of using water-saving equipment for agricultural equipment, comprising the following steps:

S1: The rainwater can be collected through the water tank 1 and the collection port 2, and the filter plate 3 can filter the turbidity in the rainwater. Since the filter plate 3 is set obliquely, the turbid residue is introduced into the dust along the filter plate 3. In the box 4, dust can be collected, and the set pipe 5 can discharge the dust;

S2: The water pump 7 can pump out the water inside the water tank 1 through the communication pipe 8, and send it into the cylinder 10 through the water supply pipe 9. The water flow enters the metal pipe 14 through the hose 20, and then sprays through the nozzle 13 for sprinkling. The water flow impacts the spiral blade 12 on the outer side of the circular shaft 11 to drive the circular shaft 11 to rotate, the circular shaft 11 drives the cam 22 to rotate, the cam 22 pulls the rack 18 to reciprocate through the turning rod 21, and the rack 18 drives the metal tube 14 to reciprocate through the gear 19. The metal pipe 14 drives the sprinkler head 13 to reciprocate and rotate, so that the sprinkler head 13 can be sprayed back and forth, and the irrigation can be evenly sprayed;

S3: convert the light energy into electrical energy through the solar panel 27 and store it in the power source 26, push the solar panel 27 to turn over by the push rod motor 30, and support it by the support rod 29, the angle of the solar panel 27 can be changed, and the servo motor 32 drives the circular plate 28 to rotate through the rotating rod 33, and the circular plate 28 drives the solar cell panel 27 to rotate through the push rod motor 30 and the support rod 29, so that the solar cell panel 27 can be fully contacted with sunlight.

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. The equivalent replacement or change of the inventive concept thereof shall be included within the protection scope of the present invention.

Claims

A water-saving device for agricultural equipment, comprising a water storage tank (1), characterized in that, a filter plate (3) is arranged in the water storage tank (1), and the filter plate (3) is arranged at an inclination to prevent the accumulation of water. A waterproof control box (6) is arranged on one side of the box (1), a water pump (7) is arranged in the waterproof control box (6), and a communication pipe is connected between the water inlet of the water pump (7) and the water storage tank (1). (8), the water outlet of the water pump (7) is connected with a water supply pipe (9), the water supply pipe (9) is connected with a cylinder (10), and the cylinder (10) is fixedly connected to a part of the waterproof control box (6). A circular shaft (11) is installed vertically in the cylinder (10), a spiral blade (12) is fixedly installed on the outer side of the circular shaft (11), and a reciprocating structure is arranged on the top of the circular shaft (11), and the waterproof control box A support plate (15) is fixedly connected to one side of (6), a metal tube (14) is installed on the support plate (15) for vertical rotation, and the bottom end of the metal tube (14) communicates with the cylinder (10). With the same hose (20), the top of the metal pipe (14) is threadedly connected with a spray head (13), the reciprocating structure is connected with the metal pipe (14), and the top of the waterproof control box (6) is rotatably connected with a circular plate (28), A push rod motor (30) is rotatably connected to the top of the circular plate (28), a solar cell panel (27) is rotatably connected to the output shaft of the push rod motor (30), and a support rod (27) is fixedly installed on the top of the circular plate (28). 29), the top of the support rod (29) is rotatably connected with the bottom of the solar cell panel (27).
The water-saving equipment for agricultural equipment according to claim 1, wherein a servo motor (32) is fixedly connected to the top inner wall of the waterproof control box (6), and the output shaft of the servo motor (32) A rotating rod (33) is fixedly installed on the top, and the top of the rotating rod (33) is fixedly installed with the bottom of the circular plate (28).
The water-saving equipment for agricultural equipment according to claim 1, characterized in that, an annular block (31) is fixedly installed on the top of the waterproof control box (6), and the top of the annular block (31) is embedded with an annular block (31). A plurality of balls, all of which are in contact with the bottom of the circular plate (28).
A water-saving device for agricultural equipment according to claim 1, characterized in that the reciprocating structure comprises a cam (22), a turning lever (21), a rack (18) and a gear (19), and the cam ( 22) It is fixedly installed with the top end of the round shaft (11), one end of the overturn lever (21) is rotatably connected with the eccentric position of the cam (22), and the other end of the overturn lever (21) is rotatably connected with the rack (18), and the gear ( 19) is sleeved on the outside of the metal tube (14), and the rack (18) is engaged with the gear (19).
The water-saving equipment for agricultural equipment according to claim 1, characterized in that a bottom opening groove (17) is opened at the bottom of the support plate (15), and a bottom opening groove (17) is slidably installed in the bottom opening groove (17). The mouth block (16), the bottom of the bottom mouth block (16) and the top of the rack (18) are fixedly installed.
A water-saving device for agricultural equipment according to claim 1, characterized in that a placing plate (25) is fixedly installed in the waterproof control box (6), and a power supply (26) is placed on the placing plate (25) The top of the solar panel (27) is connected to the power supply (26).
The water-saving equipment for agricultural equipment according to claim 1, wherein a controller is provided in the waterproof control box (6), and the water pump (7) and the servo motor (32) are both connected to the controller , a box cover (34) is rotatably installed on one side of the waterproof control box (6).
A water-saving device for agricultural equipment according to claim 1, characterized in that a collar (23) is fixedly installed on the top of the cylinder (10), and the circular shaft (11) is located in the collar (23) Inside, the outer side of the collar (23) is threadedly connected with a screw (24), and the end of the screw (24) extends into the collar (23) and is in contact with the circular shaft (11).
A water-saving device for agricultural equipment according to claim 1, characterized in that, a collection port (2) is arranged on the top of the water storage tank (1), and the collection port (2) is a horn structure, and the water accumulation port (2) is a horn structure. One side of the box (1) is communicated with a dust storage box (4), a bottom of the dust storage box (4) is communicated with a pipe (5), and the bottom of the pipe (5) is threadedly connected with a cap.
A method of using water-saving equipment for agricultural equipment, comprising the following steps:

S1: Rainwater can be collected through the water storage tank (1) and the collection port (2), and the filter plate (3) can filter the turbidity in the rainwater. Since the filter plate (3) is inclined, the turbid residue The dust is introduced into the dust box (4) along the filter plate (3), the dust can be collected, and the set pipe (5) can discharge the dust;

S2: The water in the water tank (1) can be pumped out by the water pump (7) through the connecting pipe (8), sent into the cylinder (10) through the water supply pipe (9), and the water flows into the metal pipe through the hose (20). (14), and then sprayed through the nozzle (13) for sprinkling irrigation, the water flow hits the spiral blade (12) outside the circular shaft (11) to drive the circular shaft (11) to rotate, and the circular shaft (11) drives the cam (22) to rotate, The cam (22) pulls the rack (18) to reciprocate through the turning lever (21), the rack (18) drives the metal tube (14) to reciprocate through the gear (19), and the metal tube (14) drives the nozzle (13) to reciprocate. , the sprinkler head (13) can be reciprocatingly sprinkled, and the sprinkler can be evenly sprinkled;

S3: The solar cell panel (27) converts light energy into electrical energy and stores it in the power source (26), pushes the solar cell panel (27) to turn over by the push rod motor (30), and is supported by the support rod (29), which can To change the angle of the solar panel (27), the servo motor (32) drives the circular plate (28) to rotate through the rotating rod (33), and the circular plate (28) drives the solar cell through the push rod motor (30) and the support rod (29). The rotation of the plate (27) can make the solar cell panel (27) fully contact with sunlight.