Bow-shaped stand-column-free sunlight greenhouse structure

Abstract

The utility model discloses an arch-shaped column-free sunlight greenhouse structure which comprises a main wall, a greenhouse roof assembly is installed at the top of the main wall and used for supporting the top of a greenhouse to form an arch shape, and a greenhouse head assembly is detachably installed at the other end of the greenhouse roof assembly and used for supporting the top of the greenhouse to form an arch shape. The shed head assembly is used for supporting the front end of the greenhouse to form a circular arc with the radius being two meters, and the shed head assembly comprises a shed head frame detachably installed at the end of the shed roof assembly. According to the arch-shaped stand-column-free sunlight greenhouse structure, through the mode that the greenhouse head assembly is assembled in advance, the assembling precision of the greenhouse top assembly is improved, assembling is more convenient and faster, no stand column is arranged in the assembled greenhouse for supporting, the planting space in the greenhouse is larger, the whole roof of the greenhouse is in an arch shape, and the greenhouse is more attractive in appearance. The wind resistance and pressure resistance of the whole greenhouse are enhanced through the organic combination of the arch shape and the circular shape, and a 60-degree fan-shaped space is formed in the position of the greenhouse head assembly, so that manual operation is facilitated, and cultivation of high-stem crops such as dwarfing and close planting cultivation of large cherries is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of planting, in particular to a bow-shaped column-free solar greenhouse structure. Background Art

[0002] Although the Jiayuguan area has abundant light and heat resources, long sunshine hours, large temperature differences between day and night, fertile land, and dry climate, the winter is extremely cold. Cherries grown in the open field cannot survive the winter safely, and can only be grown in protected areas such as greenhouses and sheds.

[0003] The existing greenhouses are mainly composed of steel arch frames and columns, and the columns are mainly used to support the greenhouses. However, the existence of the columns can easily affect the internal space of the greenhouse and reduce the planting space. In addition, the frame assembly process is relatively cumbersome and requires high assembly precision. In order to improve the space utilization rate of the greenhouse and facilitate the assembly of the greenhouse, it is decided to introduce a bow-shaped column-free solar greenhouse structure. Utility Model Content

[0004] The utility model discloses a bow-shaped column-free solar greenhouse structure, aiming to solve the technical problems that columns reduce the utilization rate of greenhouse space and the greenhouse assembly is not convenient enough.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A bow-shaped column-free solar greenhouse structure comprises a main wall, a roof assembly is installed on the top of the main wall, and the roof assembly is used to support the top of the greenhouse into an arch shape;

[0007] A shed head assembly is detachably mounted on the other end of the shed roof assembly, and the shed head assembly is used to support the front end of the greenhouse to form an arc shape with a radius of two meters;

[0008] The shed head assembly includes a shed head frame detachably mounted on the end of the shed roof assembly;

[0009] A support assembly is movably arranged on the roof assembly, and the support assembly includes a first support rod rotatably connected to the lower end of the roof frame, and a second support rod is rotatably connected to the surface of the first support rod. The first support rod can support the roof frame alone on the ground through the second support rod, and is used for assembling the roof frame and the roof assembly, and the first support rod can be fixedly connected to the roof assembly.

[0010] The second support rod is rotated to fix it to the roof frame, so that the roof frame is supported on the ground by the first support rod. The roof assembly is then lifted by a crane so that the two ends of the roof frame are respectively fixed to the main wall and the roof assembly. Finally, the second support rod can be released and the first support rod can be rotated again to fix it to the roof assembly, thereby improving the stability after assembly. By pre-assembling the roof assembly, the assembly accuracy of the roof assembly is improved and the assembly is more convenient.

[0011] In a preferred solution, the roof assembly includes a roof frame fixed to the top of the main wall, the roof frame is bolted to the top of the main wall via a first connector at one end thereof, and a second connector is fixed to the other end of the roof frame.

[0012] In a preferred solution, diagonal braces are detachably installed between the roof frame and the main wall to improve the structural strength.

[0013] In a preferred solution, the canopy head assembly further comprises a slot provided at the upper end of the canopy head frame, the slot is engaged with the second connector and fixed by bolts to facilitate subsequent disassembly and assembly.

[0014] In a preferred embodiment, the support assembly further comprises a third connector disposed at one end of the first support rod, and the third connector is fixed to a top block on a lower surface of the second connector by bolts to improve the stability of the roof assembly and the shed head assembly.

[0015] In a preferred embodiment, a locking block is fixed on the inner surface of the shed frame, and the locking block is fixedly connected to one end of the second support rod by a bolt. A slot is provided on the surface of the first support rod, and one end of the second support rod is rotatably connected to the inner side of the slot, and a locking hole is provided at the slot.

[0016] The locking block is fixedly connected to one end of the second support rod through a bolt, which is used to support the shed frame on the ground. A slot is provided on the surface of the first support rod, and one end of the second support rod is rotatably connected to the inner side of the slot. A locking hole is provided at the slot for storing the second support rod.

[0017] In a preferred embodiment, the horizontal angle between the shed head frame and the ground is 63.5°, and the horizontal angle between the shed roof frame and the main wall is 23.5°.

[0018] As can be seen from the above, the bow-shaped column-free solar greenhouse structure provided by the utility model has the following technical effects.

[0019] First: by pre-assembling the roof components, the assembly accuracy of the roof components is improved, and the assembly is more convenient. After assembly, there is no column support inside the greenhouse, which makes the planting space inside the greenhouse larger. The entire roof of the greenhouse is arched and circular. The organic combination of the arch and the circle enhances the wind resistance and pressure resistance of the entire greenhouse. The position of the roof components forms a 60° fan-shaped space, which is convenient for manual operation and is also conducive to the cultivation of tall crops.

[0020] Secondly, the second support rod can be used to fix it to the shed frame, so that the shed frame is supported on the ground by the first support rod, and then the second support rod can be further rotated to fix it to the roof assembly, thereby improving the stability after assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The utility model provides an axonometric structural diagram of a bow-shaped column-free solar greenhouse structure.

[0022] Figure 2 This is a schematic diagram of the assembled roof frame and head frame of a bow-shaped column-free solar greenhouse structure proposed by the utility model.

[0023] Figure 3 The utility model provides a schematic diagram of the roof frame structure of a bow-shaped column-free solar greenhouse structure.

[0024] Figure 4 The utility model provides a schematic diagram of the diagonal bracing structure of a bow-shaped column-free solar greenhouse structure.

[0025] Figure 5 The utility model provides a schematic diagram of the roof frame structure of a bow-shaped column-free solar greenhouse structure.

[0026] Figure 6 This is an angle schematic diagram of a bow-shaped column-free solar greenhouse structure proposed by the utility model.

[0027] Figure 7 The utility model provides a schematic diagram of the angle of sunlight for a bow-shaped column-free solar greenhouse structure.

[0028] In the attached drawings: 1. main wall; 2. roof assembly; 201. roof frame; 202. first connecting head; 203. second connecting head; 204. top block; 3. diagonal brace; 4. roof assembly; 401. roof frame; 402. slot; 5. support assembly; 501. first support rod; 502. notch; 503. second support rod; 504. locking block; 505. locking hole; 506. third connecting head. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0030] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0031] The utility model discloses a bow-shaped column-free solar greenhouse structure which mainly uses columns to reduce the utilization rate of greenhouse space and is suitable for scenes where greenhouse assembly is not convenient enough.

[0032] Reference Figure 1 and Figure 2 A bow-shaped column-free solar greenhouse structure comprises a main wall 1, on the top of which is mounted a roof assembly 2, which is used to support the top of the greenhouse to form an arch shape; a shed head assembly 4 is detachably mounted on the other end of the roof assembly 2, which is used to support the front end of the greenhouse to form an arc shape with a radius of two meters; the shed head assembly 4 comprises a shed head frame 401 detachably mounted on the end of the roof assembly 2; a support assembly 5 is movably arranged on the shed head assembly 4, which comprises a first support rod 501 rotatably connected to the lower end of the shed head frame 401, and a second support rod 503 is rotatably connected to the surface of the first support rod 501, and the first support rod 501 can support the shed head frame 401 alone on the ground through the second support rod 503, which is used for assembling the shed head frame 401 with the roof assembly 2, and the first support rod 501 can be fixedly connected to the roof assembly 2.

[0033] In this embodiment, the canopy assembly 4 can be pre-installed during the greenhouse assembly process. First, the first support rod 501 and the canopy frame 401 are rotated and unfolded. Figure 5 As shown, the second support rod 503 is then rotated to fix it with the canopy frame 401, so that the canopy frame 401 is supported on the ground through the first support rod 501, and then according to the design requirements, a plurality of groups of canopy components 4 are linearly arranged on the ground and fixed to the ground, and then the canopy roof component 2 is lifted by a crane so that the two ends of the canopy roof frame 201 are respectively fixed on the main wall 1 and the canopy head component 4, and finally the second support rod 503 can be released, and the first support rod 501 can be rotated again to fix it with the canopy roof component 2, thereby improving the stability after assembly, and the installation of the entire greenhouse is now completed, and the assembled greenhouse is as shown in FIG. Figure 1As shown, there is no column support inside, which makes the planting space inside the greenhouse larger, and the entire roof of the greenhouse is arched. The organic combination of the arch and the circle enhances the wind resistance and pressure resistance of the entire greenhouse. The 60° fan-shaped space formed at the position of the shed head component 4 is convenient for manual operation and is also conducive to the cultivation of high-stalk crops. You can refer to Figure 6 .

[0034] Specifically, the roof assembly 2 includes a roof frame 201 fixed to the top of the main wall 1, the roof frame 201 is bolted to the top of the main wall 1 through a first connecting head 202 at one end thereof, and a second connecting head 203 is fixed to the other end of the roof frame 201. The roof frame 201 and the main wall 1 are detachably installed with diagonal braces 3 to further improve the structural strength of the greenhouse. The head assembly 4 also includes a slot 402 opened at the upper end of the head frame 401, the slot 402 is engaged with the second connecting head 203 and fixed by bolts.

[0035] Specifically, Figure 2 , Figure 3 and Figure 5 The support assembly 5 also includes a third connecting head 506 arranged at one end of the first support rod 501, and the third connecting head 506 is fixed to the top block 204 on the lower surface of the second connecting head 203 by bolts. After the second connecting head 203 is engaged with the slot 402 at the end of the shed frame 401, the top block 204 on the lower surface of the second connecting head 203 will be synchronously pressed against the end of the shed frame 401, thereby improving the bearing performance of the shed frame 401, and the first support rod 501 can be subsequently fixed to the top block 204 by the third connecting head 506, so as to form a triangular support structure.

[0036] Specifically, a locking block 504 is fixed to the inner surface of the shed frame 401, and the locking block 504 is fixedly connected to one end of the second support rod 503 by bolts, and is used to support the shed frame 401 on the ground. A slot 502 is provided on the surface of the first support rod 501, and one end of the second support rod 503 is rotatably connected to the inner side of the slot 502. A locking hole 505 is provided at the slot 502, and is used to store the second support rod 503, and the second support rod 503 is fixed in the slot 502 by bolts passing through the locking hole 505.

[0037] like Figure 6 and Figure 7 As shown, H is the solar altitude angle, φ is the local latitude, δ is the solar declination, ∠a is the ideal roof angle, ∠b is the incident angle of the sun, and H' is the projection angle of the sun. The relationship is as follows:

[0038] H=90°-φ+δ;∠a=H'-H;When ∠b=0°, Hˊ=90°, ∠a is the ideal roof angle=φ-δ; when ∠b≤40°, ∠a'=(φ-δ)-40° is the reasonable roof angle, ∠a"=∠a'+5°~7° is the best roof angle.

[0039] Jiayuguan area φ=40°(39°37'58"-39°50'29") Northern Hemisphere winter solstice δ=-23.5°∠a=φ-8=40°-(-23.5°)=63.5°,∠a'=(φ-δ)-40°=63.5°-40°

[0040] =23.5°, ∠a"=∠a'+5°~7°=23.5°+5°~7°=28.5°~30.5°.

[0041] The front roof of the arch-shaped column-free solar greenhouse structure meets the ideal roof angle ∠a=φ-δ=40°

[0042] -(-23.5°)=63.5°, the middle and rear roofs meet the reasonable roof angle ∠a'=23.5° and the optimal roof angle ∠a"=28.5°~30.5°.

[0043] In summary, the horizontal angle between the shed frame 401 and the ground is 63.5°, and the horizontal angle between the shed roof frame 201 and the main wall 1 is 23.5°.

[0044] Working principle: When in use, first rotate and unfold the first support rod 501 and the canopy frame 401. Figure 5 As shown, the second support rod 503 is then rotated to be bolted to the locking block 504 on the lower surface of the shed frame 401, so that the shed frame 401 is supported on the ground through the first support rod 501, and then according to the design requirements, a plurality of groups of shed head components 4 are linearly arranged on the ground and fixed to the ground, and then the roof frame 201 is lifted by a crane, and the first connecting head 202 of the roof frame 201 is fixed to the top of the main wall 1 by bolts, and the second connecting head 203 of the roof frame 201 is fixed to the slot 402 of the shed frame 401 by bolts, and finally the second support rod 503 can be released and rotated into the slot 502, and the second support rod 503 is fixed in the slot 502 for storage by passing the bolt through the locking hole 505, and then the first support rod 501 is rotated so that its upper end contacts the top block 204 on the lower surface of the shed frame 201 and is bolted to improve the structural strength of the greenhouse.

[0045] The following are some cherry cultivation precautions for this application.

[0046] 1. Protected land types suitable for dwarfing, medium, tall and extra-high density cultivation of big cherries.

[0047] 1.1. Arched round column-free solar greenhouse.

[0048] 1.1.1 Main parameters of the arch-shaped column-free solar greenhouse.

[0049] 1) Main wall bottom width: 2m. 1.5m larger than the local frozen soil layer.

[0050] 2) The highest point of the greenhouse is 4m from the ground.

[0051] 3) Greenhouse span: 8m.

[0052] 4) The middle and rear roof is arch-shaped at a height of 3.209m in the middle of the greenhouse.

[0053] 5) The front roof is a circle with a radius of 2m.

[0054] 6) The greenhouse is 50-80m long.

[0055] 1.1.2 Structural features of the bow-shaped column-free solar greenhouse.

[0056] 1) The entire roof of the greenhouse is in the shape of a bow and a circle. The organic combination of the bow and the circle enhances the wind resistance and pressure resistance of the entire greenhouse.

[0057] 2) The entire greenhouse has no columns and has a large cultivation space.

[0058] 3) The 60° fan-shaped space on the front roof is convenient for manual operations and is also conducive to the cultivation of tall crops.

[0059] 4) Good lighting, fast temperature rise, and excellent thermal insulation. Under good insulation facilities, non-freeze-resistant vegetables such as cucumbers and peppers can be safely cultivated over the winter.

[0060] 1.2. Simple solar greenhouse, the greenhouse is 3-4m high, 7-8m wide and 50-80m long.

[0061] Simple solar greenhouse: No insulation blanket is needed in winter, only the greenhouse film is needed to ensure the safe wintering of cherries. For the cultivation of cherries in a simple solar greenhouse, the vents on the greenhouse need to be closed in the first and second wintering years after the planting of cherry seedlings. In the third wintering year and thereafter, the vents on the greenhouse should be ≤50cm, and the vents should not be closed during wintering management. In a simple solar greenhouse, cherries can safely winter in a special environment without insulation blankets in winter. In early April of the following year, cherries enter the germination, flowering and fruiting period. Starting from early April, adjust the size of the upper and lower windproof vents of the simple solar greenhouse to meet the temperature requirements for the germination, flowering and fruiting period of cherries. In early May, when the outside night temperature is above 10℃, manage it according to open field cultivation.

[0062] 1.3. Plastic greenhouse, the span of the greenhouse is 7-8m, the height is 3m and the length is 50m.

[0063] Greenhouse dwarfing medium, tall, and high-density cherry cultivation. Because the greenhouse is closed in winter (the two air vents at both ends of the greenhouse are not fully closed, and a 1-meter-long equilateral triangle ventilated hole should be left above 1m on the ground to prevent instantaneous high temperatures), there is no problem with the overwintering of cherries after planting. After the spring, the temperature rises, and ventilation in the greenhouse is extremely critical. First, open the two air vents at both ends of the greenhouse to prevent instantaneous high temperatures, and then open the air vents on both sides of the greenhouse according to the temperature requirements of the cherry flowering and fruiting period. If the ventilation is regulated in spring to postpone the flowering period of cherries until the open-field peach and apricot blossoms bloom, it will be managed according to open-field cultivation, and the greenhouse only plays a role in preventing cold and overwintering.

[0064] 2. Suitable for dwarfing cherry varieties cultivated in medium, tall and high density in protected areas.

[0065] 2.1 Excellent varieties for dwarf rootstock grafting include Russia No. 8 / Gisela No. 6 and Mei Zao / Gisela No. 6.

[0066] 2.2 Pollination varieties: American Red / Gisela No. 6, Golden Red / Gisela No. 6.

[0067] 2.3 Pollination tree configuration: main cultivar: pollination variety = 4:1. One main cultivar is configured with two pollination varieties.

[0068] 2.4 Use of pollinator: Use the cherry-specific pollinator package Greenhouse No. 1 + Greenhouse No. 2 + Greenhouse No. 3 developed by Guoguang Company.

[0069] Blooming period---late blooming period: Use Greenhouse No. 1. Add 20kg of water to each bag and spray it on the stigma and the center of the flower with a small spray bottle. Use your hands to block the pollination drug as much as possible and spray it on the leaves, otherwise it will stimulate the enlargement of the leaves and leaf nodes. The greenhouse temperature should not exceed 22℃ during the day, and after pollination, it should be controlled below 23℃ during the day, and the night temperature should be controlled at around 10℃.

[0070] Use Greenhouse No. 2 pollinator 13 days after the first application, with 17.5 kg of water per bag. Use a small spray pot to spray flowers and young fruits. Also, try to block the spray on the leaves with your hands, otherwise it will stimulate the leaves and leaf nodes to grow larger. After the second pollination, the daytime temperature should not exceed 22°C. When entering the hard core stage, the daytime temperature should be controlled below 18-20°C, and the nighttime temperature should be controlled below 8°C.

[0071] After 10 days of the second application, you can spray again with greenhouse No. 3 pollinator. Add 20kg of water to each bag. Similarly, try to use your hands to block the spray of pollinator and spray less on the leaves, otherwise it will stimulate the enlargement of leaves and leaf nodes. After three times of pollinator spraying, pinch the new branches in time to promote the formation of flower buds in the next year and reduce the competition with fruits for nutrients. After pollination, the daytime temperature is controlled at around 23℃ and the nighttime temperature is controlled at around 10℃. It is strictly forbidden to keep the greenhouse at 25-30℃ during the day and 12-15℃ at night.

[0072] 3. The cultivation density suitable for protected areas is medium, high and extra-high density dwarf cultivation of sweet cherry.

[0073] 3.1 Medium density cultivation: plant spacing 1m × row spacing 3m, 222 plants / mu, planted in the north-south direction.

[0074] 3.2 High-density cultivation: plant spacing 1m × row spacing 2m, 333 plants / mu, planted in the north-south direction.

[0075] 3.3 High density cultivation: plant spacing 0.5m × row spacing 2m, 666 plants / mu, planted in the north-south direction.

[0076] 3.4 High-density planting in bags, with a plant spacing of 0.5m and a row spacing of 1.6m, 832 plants / mu, and planted in the north-south direction. The planting in bags is to limit the root growth of cherries, thereby controlling the growth of cherry branches and trunks, and achieving the goal of high-density dwarfing and high yield within 2-5 years. Therefore, the cultivation and management are the same as cherry tomatoes. The tree shape is a columnar tree shape with only the central trunk left, and 20-50cm long fruiting branches are cultivated on the central trunk. Fertilization and watering are all in the inter-row furrows. Strictly control watering, 3-4 times / year. Fill the inter-row furrows with high-quality organic fertilizers (such as decomposed sheep manure, etc.) according to the growth and fruiting conditions of cherries.

[0077] 4. Key technologies for dwarfing medium, tall and extra-high density cultivation of sweet cherries in protected areas.

[0078] 4.1 Planting density.

[0079] The dwarf medium density cultivation is 222 plants / mu, with a plant spacing of 1m×3m.

[0080] Dwarfing high-density cultivation is 333 plants per mu, with a row spacing of 1m×2m.

[0081] The dwarfing and high-density cultivation is 666 plants / mu, with a row spacing of 0.5m×2m.

[0082] Dwarfing and high-density planting in beautiful planting bags with 832 plants per mu and a plant spacing of 0.5m×1.6m.

[0083] 4.2 Cultivation of tree shape and fruiting branch groups.

[0084] The tree shape is cylindrical with a central trunk of 2.5-3m high. The cultivation of tree shape and fruiting branches is mainly carried out in summer. Branch pulling starts in mid-June and lasts until the end of August. The long branches on the central trunk are pulled downward to 110°. After pulling, the upright branches on the back are cut short. The remaining branches are pinched when they have 8-10 leaves to cultivate fruiting branches. Summer pruning is extremely critical in the dwarfing and dense planting of big cherries: pulling branches, removing upright branches and leaving flat and oblique branches, thinning weak and disorderly branches, and continuous pinching should be carried out from late June to the end of September.

[0085] 4.3 High ridge cultivation.

[0086] Generally, cherries grown on high ridges are afraid of waterlogging. High ridge cultivation can effectively control moisture, prevent and control dry rot above the grafting point of the cherry rootstock, and at the same time control the excessive growth of branches.

[0087] High ridges, mulching and planting: Ridges are built in the north-south direction, with a ridge width of 1m and a ridge height of 30-40cm. The ridge surface is low in the middle and high on the sides. After the cherries are planted, drip irrigation tapes are laid. 33% pendimethalin is evenly sprayed on the ridge surface and then covered with 145cm black film.

[0088] 4.4 Fertilization.

[0089] Base fertilizer: Apply 10-20 cubic meters of decomposed organic fertilizer and 25 kg of diammonium phosphate per mu before ridge formation, and then deep plowing; or use 50 kg of Mumei soil plus 25 kg of diammonium phosphate, and then deep plowing.

[0090] Top dressing: Mainly use instant ternary compound fertilizer with high potassium content (such as ternary compound fertilizer with NPK=19-19-19, 17-17-17), 3-4 times per growing season, 20-25 kg / mu each time.

[0091] 4.5 Watering: After planting, water thoroughly and adequately, and apply Genjia 2.5 kg / mu with water. After the cherry is established, control watering, 3-4 times per growing season, and apply fertilizer with water.

[0092] 4.6: Row crops: clear tillage or intercropping with green manure.

[0093] The three main benefits of growing grass: increasing soil permeability, retaining moisture, and increasing organic matter.

[0094] 4.7 Control of cherry pests.

[0095] The main target is red spider mites. Every autumn is the critical period for prevention and control. Use 1000-1500 times diluted 5% avermectin + 0.3% potassium dihydrogen phosphate to spray once every 15 days, 2-3 times will be enough.

[0096] 4.8 Prevention and control of cherry diseases.

[0097] It is mainly dry rot. Before the disease occurs, spray the whole tree with 30g of Copper Master (86.2% copper hydroxide) + 15kg of water. For the diseased trunk or large branches, scrape off the diseased skin with a knife, and apply 1 part of Copper Master (86.2% copper hydroxide) + 10 parts of fine soil and water to make a mud for prevention and control. For the gum flow caused by mechanical trauma on the cherry trunk, scrape off the gum flow with a knife and apply the above-mentioned mud to the bark of the gum flow area to promote wound healing and prevent the death of the main trunk due to excessive gum flow.

[0098] 4.9. Winter pruning.

[0099] It is not advisable to prune cherry trees too early in winter. It is best to prune them in mid-to-late December each year. Prune them according to the cylindrical tree shape suitable for dwarfing and dense planting. Thin out dense branches, remove upright branches, control the growth of strong branches, remove diseased branches, and shorten and prune oblique branches.

[0100] 4.10. Prevent stem and branch pullout in early spring.

[0101] In simple solar greenhouses and greenhouses, the temperature rises in early spring, and the temperature in the greenhouse rises faster than the ground temperature during the day. The moisture of the cherry tree evaporates due to the rising temperature in the greenhouse. The ground temperature is low, and the moisture absorbed by the cherry roots cannot make up for the moisture evaporated by the tree, which is most likely to cause the upper branches of the tree to dry up and die. To prevent this kind of harm, before the temperature rises in early spring, black mulch is covered within 1m on both sides of the cherry cultivation row to increase the ground temperature and promote the activity of the cherry root system.

[0102] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited to this. The replacement can be a replacement of part of the structure, device, method step, or a complete technical solution. Equivalent replacement or change based on the technical solution of the utility model and its utility model concept should be included in the protection scope of the utility model.

Claims

1. A bow-shaped column-free solar greenhouse structure, comprising a main wall (1), It is characterized in that A roof assembly (2) is installed on the top of the main wall (1), and the roof assembly (2) is used to support the top of the greenhouse into a bow shape; A shed head assembly (4) is detachably mounted on the other end of the shed roof assembly (2), and the shed head assembly (4) is used to support the front end of the greenhouse to form an arc shape with a radius of two meters; The shed head assembly (4) comprises a shed head frame (401) which is detachably mounted on the end of the shed roof assembly (2); A support assembly (5) is movably arranged on the roof assembly (4), and the support assembly (5) includes a first support rod (501) rotatably connected to the lower end of the roof frame (401), and a second support rod (503) is rotatably connected to the surface of the first support rod (501), and the first support rod (501) can support the roof frame (401) on the ground alone through the second support rod (503), so as to be used for assembling the roof frame (401) and the roof assembly (2), and the first support rod (501) can be fixedly connected to the roof assembly (2).

2. The bow-shaped column-free solar greenhouse structure according to claim 1, It is characterized in that The roof assembly (2) comprises a roof frame (201) fixed to the top of the main wall (1); the roof frame (201) is bolted to the top of the main wall (1) via a first connecting head (202) at one end thereof, and a second connecting head (203) is fixed to the other end of the roof frame (201).

3. The bow-shaped column-free solar greenhouse structure according to claim 2, It is characterized in that The roof frame (201) and the main wall (1) are detachably mounted with diagonal bracing members (3).

4. The bow-shaped column-free solar greenhouse structure according to claim 3, It is characterized in that The canopy head assembly (4) further comprises a slot (402) provided at the upper end of the canopy head frame (401), wherein the slot (402) is engaged with the second connector (203) and fixed by bolts.

5. The bow-shaped column-free solar greenhouse structure according to claim 4, It is characterized in that The support assembly (5) further comprises a third connecting head (506) arranged at one end of the first supporting rod (501), and the third connecting head (506) is fixed to the top block (204) on the lower surface of the second connecting head (203) by means of bolts.

6. The bow-shaped column-free solar greenhouse structure according to claim 5, It is characterized in that A locking block (504) is fixed on the inner surface of the canopy frame (401), and the locking block (504) is fixedly connected to one end of the second support rod (503) via a bolt.

7. The bow-shaped column-free solar greenhouse structure according to claim 6, It is characterized in that A notch (502) is provided on the surface of the first support rod (501), one end of the second support rod (503) is rotatably connected to the inner side of the notch (502), and a locking hole (505) is provided at the notch (502).

8. The bow-shaped column-free solar greenhouse structure according to claim 7, It is characterized in that The horizontal angle between the shed head frame (401) and the ground is 63.5°, and the horizontal angle between the shed roof frame (201) and the main wall (1) is 23.5°.

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