Greenhouse shading device for soilless culture

Abstract

The utility model discloses a greenhouse shading device for soilless culture, belongs to the technical field of greenhouse shading, and aims to solve the problems that most of soilless culture greenhouses do not have a shading function, and some plants cannot adapt to long-time sun irradiation due to different growth requirements of different plants, so that the plants grow too slowly and even wither. Comprising two supporting frames, two first shells are fixed to the top faces of the two supporting frames, and a first rotating rod is movably connected between the side faces, close to each other, of the inner side walls of the first shells; according to the greenhouse for soilless culture, when the handle at the top rotates, the first shielding cloth on the two sides can partially shield the greenhouse, the second shielding cloth can shield the first opening through the arranged second shielding cloth, then the greenhouse can be completely shielded when light is intense, and therefore the greenhouse for soilless culture can be shielded; the situation that the plants grow too slowly and even are withered due to long-time irradiation of sunlight on the plants is avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of greenhouse shading, and particularly relates to a soilless culture greenhouse shading device. BACKGROUND

[0002] Modern intelligent greenhouse provides the best environment required by plants in seasons not suitable for plant growth for plant growth and development, has the characteristics of being able to control temperature, humidity, carbon dioxide concentration, and being able to resist heavy snow and strong wind and other natural environments. Modern intelligent greenhouse production can effectively improve land output rate, resource utilization rate and labor productivity, and has very important significance for guaranteeing effective supply of agricultural products and promoting agricultural development.

[0003] Most of the existing soilless culture greenhouses do not have shading function, but some plants cannot adapt to long-time solar irradiation due to different growth requirements of different plants, thereby leading to slow growth or even wilting of the plants.

[0004] Therefore, a soilless culture greenhouse shading device is needed to solve the problem that most of the existing soilless culture greenhouses do not have shading function, different plants cannot adapt to long-time solar irradiation due to different growth requirements of different plants, thereby leading to slow growth or even wilting of the plants. SUMMARY

[0005] The utility model aims at providing a soilless culture greenhouse shading device to solve the problems raised in the background.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a soilless culture greenhouse shading device, comprising two support frames, two first housings are fixed on the top surfaces of the two support frames, a first rotating rod is movably connected between the mutually close one sides of the inner side walls of the first housings, first bottom openings are respectively formed in the bottom surfaces of the two first housings, the first bottom openings are symmetrically distributed, a first shading cloth is fixed on the outer side wall of the first rotating rod, a plurality of first openings are formed in the one side of the first shading cloth, side grooves are respectively formed in the mutually close one sides of the two support frames, two second housings are arranged between the mutually close one sides of the two support frames, a second rotating rod is movably connected between the mutually close one sides of the inner side walls of the second housings, second bottom openings are respectively formed in the bottom surfaces of the two second housings, the second bottom openings are symmetrically distributed, a second shading cloth is fixed on the outer side wall of the second rotating rod, a plurality of second openings are formed in the one side of the second shading cloth.

[0007] It should be noted in the scheme that four connecting rods are respectively fixed on the two sides of the mutually close one sides of the two support frames, and a plurality of connecting columns are fixed between the mutually close one sides of the two connecting rods on the same side.

[0008] Further worth mentioning, the support frame two sides are respectively fixed with guide rail, one end of the first light shielding cloth is fixed with first counterweight rod, both ends of the first counterweight rod are respectively fixed with first clamping block, the first clamping block is correspondingly clamped in the guide rail, one end of the second light shielding cloth is fixed with second counterweight block, both sides of the side of the two support frames are respectively provided with clamping groove, both ends of the second counterweight block are respectively fixed with second clamping block, the second clamping block is correspondingly clamped in the clamping groove.

[0009] Further need to be explained, one side of the support frame is movably connected with two rotating shafts at the side near the bottom, the rotating shafts and the first rotating rod are respectively fixed with first pulleys on the outer side walls, the first pulleys are movably connected with a first belt, the first rotating rod is fixed with a second gear on one side, the two second gears are engaged, the rotating shafts and the second rotating rod are respectively fixed with second pulleys on the outer side walls, the second pulleys are movably connected with a second belt, the second rotating rod is fixed with a first gear on one side, and the two first gears are engaged.

[0010] As a preferred embodiment, two limiting rods are fixed on one side of the support frame near the bottom, a moving rod is movably clamped in the limiting rod, an arc-shaped strip is fixed on one end of the moving rod, limiting grooves are formed on the opposite sides of the outer side wall of the moving rod, third clamping blocks are fixed on the side of the inner side wall of the limiting rod, the third clamping blocks are movably clamped in the limiting grooves, a threaded hole is formed on one side of the limiting rod, and a threaded knob is movably connected in the threaded hole, and one end of the threaded knob is in contact with one side of the moving rod.

[0011] As a preferred embodiment, the rotating shaft is fixed with a fixed disc on the outer side wall, the fixed disc is fixed with a rubber ring on the outer side wall, the arc-shaped strip is correspondingly in contact with the rubber ring, and the rotating shaft is fixed with a handle on one end.

[0012] As a preferred embodiment, C-shaped frames are fixed on both sides of the top surface of the two support frames, a first rotating rod is movably connected between the sides of the inner side walls of the C-shaped frames, a fixed sleeve is fixed on the outer side wall of the first rotating rod, the first light shielding cloth passes through the top surface of the fixed sleeve, a second rotating rod is movably connected between the sides of the inner side walls of the two side grooves, and the second light shielding cloth passes through the top surface of the second rotating rod.

[0013] As a preferred embodiment, first mounting blocks are fixed on both sides of the bottom surface of the first shell, the bottom surface of the first mounting block is fixed with the top surface of the support frame, second mounting blocks are fixed on both sides of the bottom surface of the second shell, and the bottom surface of the second mounting block is fixed with the bottom surface of the inner side wall of the side groove.

[0014] Compared with the prior art, the greenhouse shading device for soilless culture has at least the following beneficial effects:

[0015] (1) By setting two first rotating rods and two second gears, when the handle at the top is rotated, the first shielding cloth on both sides can partially shield the greenhouse, and by setting the second shielding cloth, the second shielding cloth can shield the first opening, so that when the light is strong, the greenhouse can be fully shielded, so that the soilless culture greenhouse can be shielded, avoiding the situation that the sunlight irradiates the plants for a long time, causing the plants to grow too slowly or even wither.

[0016] (2) By setting the position of the second shielding cloth, the shielding degree of the second shielding cloth on the first opening can be adjusted according to the intensity of sunlight, so that the light time can be adjusted according to the light requirements of different plants. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 is a schematic diagram of the overall structure of the utility model Figure 1 is a schematic diagram of the local enlarged structure of A in the utility model;

[0019] Figure 3 is a schematic diagram of the local enlarged structure of B in the utility model Figure 1 is a schematic diagram of the local enlarged structure of B in the utility model;

[0020] Figure 4 is a schematic diagram of the limiting rod structure of the utility model;

[0021] Figure 5 is a schematic diagram of the guide rail structure of the utility model;

[0022] Figure 6 is a schematic diagram of the connecting rod structure of the utility model;

[0023] Figure 7 is a schematic diagram of the first bottom opening structure of the utility model;

[0024] Figure 8 is a schematic diagram of the second shell structure of the utility model;

[0025] Figure 9 is a schematic diagram of the side groove structure of the utility model.

[0026] In the drawings:

[0027] 100, support frame; 101, connecting rod; 102, connecting column;

[0028] 200, first housing; 201, first rotating rod; 202, first shading cloth; 203, first opening; 204, first bottom opening; 205, first mounting block;

[0029] 300, C-shaped frame; 301, first rotating rod; 302, fixed sleeve;

[0030] 400, guide rail; 401, first counterweight rod; 402, first clamping block; 403, clamping groove; 404, second clamping block; 405, second counterweight rod;

[0031] 500, side groove; 501, second housing; 502, second bottom opening; 503, second shading cloth; 504, second opening; 505, second rotating rod; 506, second mounting block; 507, first gear; 508, second gear; 509, second rotating rod;

[0032] 600, rotating shaft; 601, first pulley; 602, first belt; 603, handle; 604, rubber ring; 605, limiting rod; 606, moving rod; 607, limiting groove; 608, third clamping block; 609, arc-shaped strip; 610, threaded hole; 611, threaded knob; 612, fixed disc;

[0033] 700, second pulley; 701, second belt. DETAILED DESCRIPTION

[0034] Please refer to Figures 1-9 The utility model provides a greenhouse shading device for soilless culture, including two support frame 100, two first housing 200 are fixed on the top surface of two support frame 100, the inside wall of first housing 200 is movably connected with first rotating rod 201 on the side of mutual approach, the bottom of two first housing 200 is equipped with first bottom opening 204 respectively, two first bottom opening 204 is symmetrically distributed, the outside wall of first rotating rod 201 is fixed with first shading cloth 202, the side of first shading cloth 202 is equipped with a plurality of evenly distributed first opening 203, the side of mutual approach of two support frame 100 is equipped with side groove 500 respectively, two second housing 501 are arranged between the side of mutual approach of two support frame 100, the inside wall of second housing 501 is movably connected with second rotating rod 505 on the side of mutual approach, the bottom of two second housing 501 is equipped with second bottom opening 502 respectively, two second bottom opening 502 is symmetrically distributed, the outside wall of second rotating rod 505 is fixed with second shading cloth 503, the side of second shading cloth 503 is equipped with a plurality of evenly distributed second opening 504.

[0035] Further as Figure 5As shown, four connecting rods 101 are fixed on the two sides of one side of each of the two support frames 100, and a plurality of connecting columns 102 are fixed between the two connecting rods 101 on the same side.

[0036] The two support frames 100 can be connected together through the connecting rods 101 and the connecting columns 102.

[0037] Further as shown, Figure 5 The first counterweight rod 401 is fixed at one end of the first shading cloth 202, and the first counterweight rod 401 is fixed at the two ends of the first counterweight rod 401. The first clamping block 402 is correspondingly clamped in the guide rail 400. The second shading cloth 503 is fixed at one end of the second counterweight block. The two support frames 100 are respectively provided with clamping grooves 403 on the two sides of one side of each of the two support frames 100. The second counterweight block is fixed at the two ends of the second counterweight block. The second clamping block 404 is correspondingly clamped in the clamping groove 403.

[0038] The first shading cloth 202 can be driven downward by the first counterweight rod 401, and the second shading cloth 503 can be driven downward by the second counterweight rod 405.

[0039] The present scheme has the following working process: when the greenhouse is partially shaded, the top moving rod 606 is deposed by rotating the top threaded knob 611 manually, and then the arc-shaped strip 609 is separated from the rubber ring 604 by pulling the moving rod 606. Then the handle 603 is rotated manually, and the handle 603 drives the rotating shaft 600 to rotate, and the rotating shaft 600 drives the first pulley 601 on the rotating shaft 600 to rotate, and the other first pulley 601 is driven by the transmission of the belt, and then the first rotating rod 201 connected with the first pulley 601 is driven to rotate. The transmission of the two second gears 508 drives the two first rotating rods 201 to rotate clockwise and counterclockwise, respectively. At this time, the first shading cloth 202 wound on the first rotating rod 201 is moved away from the first rotating rod 201, and moves under the action of the gravity of the first counterweight rod 401 until the first counterweight rod 401 moves to the bottom. Then the moving rod 606 is pushed obliquely upward so that the arc-shaped strip 609 contacts the rubber ring 604. Then the threaded knob 611 is rotated so that one end of the threaded knob 611 contacts one side of the moving rod 606. At this time, the position of the rotating shaft 600 of the top is positioned. At this time, the greenhouse is shaded by the first shading cloth 202.

[0040] When the sunlight is too strong and the greenhouse needs to be completely shaded, the bottom threaded knob 611 is manually rotated to release the bottom moving rod 606 from its position. Then, the moving rod 606 is pulled to separate the arc strip 609 from the rubber ring 604. Then, the bottom handle 603 is manually rotated to make the two second rotating rods 505 rotate clockwise and counterclockwise respectively. At this time, the rolled-up second shading cloth 503 on the second rotating rod 505 moves off the second rotating rod 505 and moves under the gravity of the second counterweight rod 405 until the second shading cloth 503 blocks the first opening 203. At this time, the greenhouse is completely shaded by the first shading cloth 202 and the second shading cloth 503. Then, the moving rod 606 is moved diagonally upward. At this time, the bottom arc strip 609 contacts the rubber ring 604. Then, the threaded knob 611 is rotated so that one end of the threaded knob 611 contacts one side of the bottom moving rod 606, so that the bottom fixing plate 612 is positioned.

[0041] When partially shading the greenhouse, the position of the second shading cloth 503 is adjusted under strong sunlight. The bottom threaded knob 611 is rotated to finally release the bottom fixing plate 612 from its position. Then, the handle 603 is turned so that the second shading cloth 503 moves down under the gravity of the second counterweight 405 until the first opening 203 and the second opening 504 are misaligned. At this time, the first opening 203 is partially blocked by the second shading cloth 503. The position of the second shading cloth 503 can be adjusted so that the first opening 203 is blocked to different degrees. Then, the bottom moving rod 606 is reset by the screw knob so that the bottom rubber ring 604 is positioned by the arc strip 609.

[0042] As can be seen from the above working process: by setting two first rotating rods 201 and two second gears 508, when the top handle 603 is rotated, the first shielding cloths on both sides can partially block the greenhouse. By setting the second shielding cloth, the second shielding cloth can block the first opening 203. Thus, when the light is strong, the greenhouse can be completely blocked, thereby blocking the soilless cultivation greenhouse and preventing the plants from being exposed to sunlight for a long time, which would cause the plants to grow too slowly or even wither.

[0043] By adjusting the position of the second shading cloth, the degree of shading of the second shading cloth 503 on the first opening 203 can be adjusted according to the intensity of sunlight, thereby adjusting the light exposure time according to the light requirements of different plants.

[0044] Further as Figure 2 and Figure 3As shown, two rotating shafts 600 are movably connected to one side of the support frame 100 near the bottom, first pulleys 601 are fixed to the outer side walls of the rotating shafts 600 and the first rotating rods 201, a first belt 602 is movably connected between the two first pulleys 601, a second gear 508 is fixed to one side of the first rotating rod 201, two second gears 508 are engaged, second pulleys 700 are fixed to the outer side walls of the rotating shafts 600 and the second rotating rod 505, a second belt 701 is movably connected between the two second pulleys 700, and a first gear 507 is fixed to one side of the second rotating rod 505.

[0045] The second gears 508 and the first gears 507 are arranged to enable the two first rotating rods 201 and the second rotating rod 505 to rotate in opposite directions, the first pulleys 601 and the first belt 602 are arranged to enable the first rotating rod 201 to be connected to the top rotating shaft 600, and the second pulleys 700 and the second belt 701 are arranged to enable the second rotating rod 505 to be connected to the bottom rotating shaft 600.

[0046] Further as shown, Figure 4 two limiting rods 605 are fixed to one side of the support frame 100 near the bottom, a movable rod 606 is movably clamped in the limiting rod 605, an arc-shaped strip 609 is fixed to one end of the movable rod 606, limiting grooves 607 are formed in the opposite side walls of the outer side wall of the movable rod 606, third clamping blocks 608 are fixed to one side of the inner side walls of the limiting rods 605, the third clamping blocks 608 are movably clamped with the limiting grooves 607, threaded holes 610 are formed in one side of the limiting rods 605, threaded knobs 611 are movably connected in the threaded holes 610, and one end of the threaded knob 611 is in contact with one side of the movable rod 606.

[0047] The limiting rods 605 are arranged to enable the movable rod 606 to be movably limited, the threaded holes 610 and the threaded knobs 611 are arranged to enable the position of the movable rod 606 to be positioned and limited, and the arc-shaped strip 609 is arranged to enable the arc-shaped strip 609 to be in contact with the rubber ring 604, thereby positioning the position of the fixed disc 612.

[0048] Further as shown, Figure 2 a fixed disc 612 is fixed to the outer side wall of the rotating shaft 600, a rubber ring 604 is fixed to the outer side wall of the fixed disc 612, the arc-shaped strip 609 is in contact with the rubber ring 604, and a handle 603 is fixed to one end of the rotating shaft 600.

[0049] The arc-shaped strip 609 is in stable contact with the rubber ring 604.

[0050] Further as Figure 3 and Figure 8 Two C-shaped frames 300 are fixed on the top surface of the support frame 100, and the inner side walls of the C-shaped frames 300 are movably connected with the first rotating rod 301 on one side. The first rotating rod 301 is fixed with the fixing sleeve 302, and the first shading cloth 202 passes through the top surface of the fixing sleeve 302. Two side grooves 500 are movably connected with the second rotating rod 509 on one side, and the second shading cloth 503 passes through the top surface of the second rotating rod 509.

[0051] The first rotating rod 301 and the fixing sleeve 302 are arranged to enable the first shading cloth 202 to move, and the second rotating rod 509 is arranged to enable the second shading cloth 503 to move.

[0052] Further as Figure 2 The first mounting block 205 is fixed on the bottom surface of the first shell 200, and the bottom surface of the first mounting block 205 is fixed with the top surface of the support frame 100. The second mounting block 506 is fixed on the bottom surface of the second shell 501, and the bottom surface of the second mounting block 506 is fixed with the inner side wall of the side groove 500.

[0053] The first mounting block 205 and the second mounting block 506 are arranged to enable the first shell 200 and the second shell 501 to be fixed.

[0054] The device is arranged outside the greenhouse shed, so that the greenhouse shed is wrapped by the device.

[0055] In summary: when the greenhouse is partially shaded, the top of the threaded knob 611 is manually rotated, so that the top of the moving rod 606 is canceled positioning, then pull the moving rod 606, so that the arc-shaped strip 609 and rubber ring 604 is separated, then by manually rotating the top handle 603, handle 603 rotation driven rotation shaft 600 rotation, rotation shaft 600 rotation driven on the first pulley 601 rotation, through the transmission belt driven another first pulley 601 rotation, in turn drive the first rotation rod 201 connected with it, through the transmission of two second gear 508, so that two first rotation rod 201 one clockwise one counterclockwise rotation, at this time the first rotation rod 201 on the first shading cloth 202 from the first winding rod 201 removed, and under the action of gravity first counterweight rod 401 moves, until the first counterweight rod 401 moves to the bottom, then obliquely upward push the moving rod 606, so that the arc-shaped strip 609 and rubber ring 604 contact, then rotate the threaded knob 611, so that the threaded knob 611 one end and one side of the moving rod 606 contact, at this time the top of the rotation shaft 600 position is positioned, at this time the greenhouse is covered by the first shading cloth 202.

[0056] When the sun is too strong, the need for a comprehensive greenhouse shelter, by manually rotating the bottom of the threaded knob 611, so that the bottom of the moving rod 606 is canceled positioning, then pull the moving rod 606, so that the arc-shaped strip 609 and rubber ring 604 is separated, then by manually rotating the bottom handle 603, so that two second rotation rod 505 is a clockwise and counterclockwise rotation, at this time the second rotation rod 505 on the second shading cloth 503 from the second winding rod 505 removed, and under the action of gravity second counterweight rod 405 moves, until the second shading cloth 503 will first opening 203 covered, at this time the greenhouse is covered by the first shading cloth 202 and second shading cloth 503, then obliquely upward moving rod 606, at this time the bottom of the arc-shaped strip 609 and rubber ring 604 contact, then rotate the threaded knob 611, so that the threaded knob 611 one end and one side of the bottom of the moving rod 606 contact, so that the bottom of the fixed disc 612 is positioned.

[0057] When the greenhouse is partially shaded, the position of the second shading cloth 503 is adjusted under the condition of strong sunlight, the bottom screw knob 611 is rotated, the bottom fixed disc 612 is finally cancelled, and then the handle 603 is turned, so that the second shading cloth 503 moves down under the gravity of the second counterweight rod 405, until the first opening 203 and the second opening 504 are distributed in a staggered manner, at this time the first opening 203 is partially blocked by the second shading cloth 503, the position of the second shading cloth 503 can be adjusted to block the first opening 203 to different degrees, and then the bottom moving rod 606 is reset by the screw knob, so that the bottom rubber ring 604 is positioned by the arc-shaped strip 609.

[0058] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A greenhouse shading device for soilless cultivation comprising two support frames (100), characterized in that, Two first housings (200) are fixed on the top surface of the two support frames (100), the inner side walls of the first housings (200) are movably connected with the first rotating rods (201) on one side, the bottom surfaces of the two first housings (200) are respectively provided with first bottom openings (204), the two first bottom openings (204) are symmetrically distributed, the outer side walls of the first rotating rods (201) are fixed with the first light shielding cloths (202), one side of the first light shielding cloths (202) is provided with a plurality of first openings (203) which are uniformly distributed, the side surfaces of the two support frames (100) are respectively provided with side grooves (500), two second housings (501) are arranged on the side surfaces of the two support frames (100), the inner side walls of the second housings (501) are movably connected with the second rotating rods (505) on one side, the bottom surfaces of the two second housings (501) are respectively provided with second bottom openings (502), the two second bottom openings (502) are symmetrically distributed, the outer side walls of the second rotating rods (505) are fixed with the second light shielding cloths (503), one side of the second light shielding cloths (503) is provided with a plurality of second openings (504) which are uniformly distributed.

2. The greenhouse shading device for soilless culture according to claim 1, characterized in that: Four connecting rods (101) are respectively fixed on the two sides of the side surfaces of the two support frames (100), a plurality of connecting columns (102) are fixed on the side surfaces of the two connecting rods (101) on the same side.

3. The greenhouse shading device for soilless culture according to claim 2, characterized in that: The side surfaces of the support frames (100) are respectively fixed with guide rails (400), one end of the first light shielding cloth (202) is fixed with a first counterweight rod (401), the two ends of the first counterweight rod (401) are respectively fixed with first clamping blocks (402), the first clamping blocks (402) are movably clamped in the guide rails (400), one end of the second light shielding cloth (503) is fixed with a second counterweight block, clamping grooves (403) are respectively formed on the two sides of the side surfaces of the two support frames (100), the two ends of the second counterweight block are respectively fixed with second clamping blocks (404), the second clamping blocks (404) are movably clamped in the clamping grooves (403).

4. The greenhouse shading device for soilless culture according to claim 3, characterized in that: The side surfaces of the support frames (100) are respectively fixed with guide rails (400), one end of the first light shielding cloth (202) is fixed with a first counterweight rod (401), the two ends of the first counterweight rod (401) are respectively fixed with first clamping blocks (402), the first clamping blocks (402) are movably clamped in the guide rails (400), one end of the second light shielding cloth (503) is fixed with a second counterweight block, clamping grooves (403) are respectively formed on the two sides of the side surfaces of the two support frames (100), the two ends of the second counterweight block are respectively fixed with second clamping blocks (404), the second clamping blocks (404) are movably clamped in the clamping grooves (403). One side of the support frame (100) is movably connected with two rotating shafts (600) near the bottom position, the outer side walls of the rotating shafts (600) and the first rotating rods (201) are respectively fixed with first pulleys (601), the first pulleys (601) are movably connected with a first belt (602), one side of the first rotating rod (201) is fixed with a second gear (508), the two second gears (508) are meshed, the outer side walls of the rotating shafts (600) and the second rotating rods (505) are respectively fixed with second pulleys (700), the second pulleys (700) are movably connected with a second belt (701), one side of the second rotating rod (505) is fixed with a first gear (507), the two first gears (507) are meshed.

5. The greenhouse shading device for soilless cultivation according to claim 4, characterized in that: One side of the support frame (100) one side face is close to the bottom position and is fixed with two limit rods (605), the limit rod (605) is clamped with a movable rod (606) inside, one end of the movable rod (606) is fixed with an arc strip (609), the outer side wall of the movable rod (606) is provided with a limit slot (607) on the opposite two sides, respectively, the third clamping block (608) is fixed on the side of the inner side wall of the limit rod (605) which is close to each other, respectively, the third clamping block (608) is clamped with the limit slot (607), the threaded hole (610) is set on the side of the limit rod (605), the threaded hole (610) is movably connected with a threaded knob (611), one end of the threaded knob (611) is in contact with the side of the movable rod (606).

6. The greenhouse shading device for soilless cultivation according to claim 5, characterized in that: The outer side wall of the rotating shaft (600) is fixed with a fixed disc (612), the outer side wall of the fixed disc (612) is fixed with a rubber ring (604), the arc strip (609) is in contact with the rubber ring (604), one end of the rotating shaft (600) is fixed with a handle (603).

7. The greenhouse shading device for soilless cultivation according to claim 6, characterized in that: The top surface of the two support frames (100) is respectively fixed with a C-shaped frame (300), the first rotating rod (301) is movably connected between the side of the inner side wall of the C-shaped frame (300) which is close to each other, the outer side wall of the first rotating rod (301) is fixed with a fixed sleeve (302), the first shading cloth (202) passes through the top surface of the fixed sleeve (302), the second rotating rod (509) is movably connected between the side of the two side grooves (500) which is close to each other, the second shading cloth (503) passes through the top surface of the second rotating rod (509).

8. The greenhouse shading device for soilless cultivation according to claim 7, characterized in that: The bottom surface of the first shell (200) is respectively fixed with a first mounting block (205), the bottom surface of the first mounting block (205) is fixed with the top surface of the support frame (100), the bottom surface of the second shell (501) is respectively fixed with a second mounting block (506), the bottom surface of the second mounting block (506) is fixed with the inner side wall bottom surface of the side groove (500).

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