Simple cold-proof greenhouse for litchi garden

Abstract

This utility model relates to the field of litchi planting technology and discloses a simple cold-proof greenhouse for litchi orchards, comprising: two spaced positioning stakes and a tie line between the two positioning stakes; multiple first support rods are spaced along the length of the steel wire rope, each first support rod has an arched bracket at its bottom, the arched bracket spans the top of the litchi tree, the two ends of the arched bracket are buried underground and fixed, adjacent arched brackets in the same row are connected by inter-row connectors, the top of the arched bracket is covered with a cold-proof film, the cold-proof film is not a full-coverage type, the coverage area of ​​the cold-proof film is the middle and upper part of the arched bracket, the bottom of the cold-proof film is tied and fixed to the arched bracket, and the arched top of the cold-proof film is erected on the first support rods.

Description

Technical Field

[0001] This utility model relates to the field of litchi cultivation technology, and in particular to a simple cold-proof greenhouse for litchi orchards. Background Technology

[0002] Lychee is an evergreen tree, a typical subtropical fruit tree in southern my country. Its flowering requires strict low-temperature conditions (daytime temperatures below 20℃), and it is also sensitive to low temperatures; temperatures close to 0℃ can cause chilling injury. Currently, common methods of frost protection in lychee orchards include covering with straw and constructing covered greenhouses. These methods have several drawbacks: 1. Poor wind resistance: The structural strength of the simply built shed is insufficient, and it is easily blown down or damaged in strong winds in winter, resulting in unstable cold protection. 2. Inconvenient disassembly and assembly: Most facilities cannot be effectively retracted or stored during non-cold-weather periods, materials are prone to aging and damage, the reuse rate is low, and costs and labor intensity are increased. 3. Poor ventilation: Traditional fully covered greenhouses have poor air circulation, which can easily lead to excessive humidity and sudden temperature rise, creating conditions for the breeding of pests and diseases. 4. Impact on agricultural operations: Fixed or complex greenhouses hinder daily activities such as walking, pruning, and fertilizing in the orchard. Therefore, there is an urgent need in this field for a simple, sturdy, wind-resistant, easily ventilated, and reusable special cold-proof greenhouse for litchi orchards. Utility Model Content

[0003] This application provides a simple cold-proof greenhouse for lychee orchards. The first technical problem to be solved is that traditional cold-proof devices are difficult to retract during the off-season, occupy space, and are prone to aging. The second technical problem to be solved is that traditional full-coverage greenhouses have poor ventilation, which can easily lead to pests and diseases, and make it inconvenient for personnel to enter and exit. The third technical problem to be solved is that traditional cold-proof facilities are easily blown down in strong winds during winter, making the structure unstable.

[0004] To address the aforementioned technical problems, this application provides a simple frost-proof greenhouse for lychee orchards. The concept of this application is to utilize the frost-proof period, from late November to early December, to complete the construction of the greenhouse facilities (the greenhouse frame only needs to be erected once, and the frost-proof film is only used from late November to two weeks after the beginning of spring) for frost-proof management, until the greenhouse is removed two weeks after the beginning of spring (the greenhouse supports remain, and the frost-proof cloth is removed). It includes: two spaced-apart positioning stakes and a tie line between the two positioning stakes; multiple first support rods are spaced along the length of the steel wire rope, each first support rod has an arched bracket at its bottom, the arched bracket spans the top of the lychee tree, and both ends of the arched bracket are buried underground for fixation. Inter-row connectors are provided between adjacent arched brackets in a row, and the top of the arched bracket is covered with a frost-proof film. The frost-proof film is not a full-coverage type; the coverage area of ​​the frost-proof film is the upper middle part of the arched bracket, the bottom of the frost-proof film is tied and fixed to the arched bracket, and the arched top of the frost-proof film is erected on the first support rod.

[0005] Furthermore, the arched support is a fiberglass tube, and a second support rod is fixed at the center between the arch top and the end of the arched support. The second support rod is made of rubber. The arch height of the arched support is 3.5-4 meters and the width is 5 meters.

[0006] Furthermore, the buried end of the arched support is provided with a ground anchor, which is a cast-in-place cement structure. An installation hole is opened in the middle of the ground anchor, and the depth of the installation hole is not less than 20 centimeters.

[0007] Furthermore, the inter-row connector is made of iron wire.

[0008] Furthermore, the positioning pile is a steel pipe, and the tie line is a steel wire rope.

[0009] Furthermore, a gap with a width of 1 cm is provided at the bottom of the adjacent cold-proof membrane.

[0010] Furthermore, the first support rod is connected to the arched bracket by straps.

[0011] Compared with the prior art, this utility model has the following features and beneficial effects: This invention employs a double-fixation system using ground anchors and tie lines to enhance wind resistance, making the structure more stable and effectively resisting strong winter winds, preventing the greenhouse from tipping over. The frost-proof film is not a full-coverage type, allowing free passage for personnel, providing ample space for personnel entry and exit, daily inspections, pruning, fertilization, and other agricultural operations, greatly improving management convenience. The gap between the frost-proof film and the ground, along with the central support design, creates good ventilation, facilitating air exchange and preventing pests and diseases caused by a stuffy and humid environment, thus reducing disease occurrence. At the same time, it ensures necessary sunlight for the lower part of the tree. The support structure is permanent, while the frost-proof film can be seasonally disassembled and reassembled, reducing costs. It is suitable for litchi plants that have been planted for more than three years. This invention solves the technical problems of traditional frost-proof devices, such as poor wind resistance, easy damage, inconvenience in storage and reuse, and the impact of the covering method on ventilation and personnel operations. Its widespread use can produce good results. Attached Figure Description

[0012] Fig. 1 This is a schematic diagram of the overall structure of an embodiment of this utility model; Fig. 2 This is a diagram showing the arrangement of the arched support according to an embodiment of this utility model; Fig. 3 This is a diagram showing the connection of adjacent arched supports in an embodiment of this utility model.

[0013] In the diagram, 100 is the positioning stake; 110 is the tie line; 200 is the first support rod; 300 is the arched bracket; 310 is the second support rod; 400 is the inter-row connector; 500 is the frost-proof membrane; and 600 is the ground anchor. Detailed Implementation

[0014] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0015] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0016] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0017] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0018] like Figs. 1-3 As shown, this utility model provides a simple cold-proof greenhouse for lychee orchards, comprising: two spaced positioning stakes 100 and a tie line 110 between the two positioning stakes 100; multiple first support rods 200 are spaced along the length of the steel wire rope, each first support rod 200 has an arched bracket 300 at its bottom, the arched bracket 300 spans the top of the lychee tree, both ends of the arched bracket 300 are buried underground and fixed, and inter-row connectors 400 are provided between adjacent arched brackets 300 in the same row, the top of the arched bracket 300 is covered with a cold-proof film 500, the cold-proof film 500 is not a full-coverage type, the coverage area of ​​the cold-proof film 500 is the middle and upper part of the arched bracket 300, the bottom of the cold-proof film 500 is tied and fixed to the arched bracket 300, and the arched top of the cold-proof film 500 is erected on the first support rods 200.

[0019] Preferably, the arch support 300 is a fiberglass tube, and a second support rod 310 is fixed at the center between the arch top and the end of the arch support 300. The second support rod 310 is made of rubber, and the arch height of the arch support 300 is 3.5-4 meters and the width is 5 meters.

[0020] Preferably, the buried end of the arched support 300 is provided with a ground anchor 600, which is a cast-in-place cement structure. The ground anchor 600 has an installation hole in the middle, and the depth of the installation hole is not less than 20 cm.

[0021] Preferably, the inter-row connector 400 is made of iron wire.

[0022] Preferably, the positioning stake 100 is a steel pipe and the tie line 110 is a steel wire rope.

[0023] Preferably, the bottom of the adjacent cold-proof membrane 500 is provided with a gap, the gap width is 1cm, to facilitate rainwater drainage and ventilation.

[0024] Preferably, the first support rod 200 is connected to the arched bracket 300 by a strap.

[0025] Preferably, the cold-proof film 500 has five layers, with the first, fourth and fifth layers being spunbond nonwoven fabric and the second and third layers being meltblown fabric.

[0026] The construction steps for a simple cold-proof greenhouse in a lychee orchard are as follows: First, in a lychee orchard with a row spacing of 5m*5m, along the tree row direction, install an arched support 300 for each lychee tree. This arched support 300 is preferably made of fiberglass tube with a length of 10-12 meters, manually bent into an arch shape, with an arch height of 3.5-4 meters and a width covering approximately 5 meters of row spacing. Bury both ends of the fiberglass tube approximately 20 centimeters deep into the ground, and pour cement in the burial pit to form ground anchors 600, thereby firmly fixing the bottom of the support.

[0027] Secondly, a reinforcement system is constructed. In each row, wire is used as an inter-row connector 400 to bind adjacent arched supports 300 together near the top, enhancing overall stability. At both ends of each row of lychee trees, a steel pipe is driven into the ground as a stake. A thin wire is then strung between the two stakes as a tie line 110. Once taut, the tie line 110 helps to fix and stabilize all the arched supports 300 in that row, significantly improving wind resistance.

[0028] Next, install the frost-proof film 500. The frost-proof film 500 uses a special agricultural frost-proof plastic film. Its covering method is a core design feature: it does not cover the entire structure from top to bottom, but only the upper middle part of the greenhouse. Specifically, the frost-proof film 500 is supported and fixed to the middle of the arched support 300 using multiple short support poles (made of materials that do not easily damage the fiberglass tube, such as plastic or wooden sticks). The support poles can be connected to the arched support 300 using straps or special clips. After the frost-proof film 500 is installed, a large space is left between its bottom edge and the ground line, forming a ventilation gap. At the same time, small holes are made at the bottom of the frost-proof film 500 as drainage holes to facilitate rainwater drainage and prevent water accumulation that could damage the greenhouse.

[0029] The construction and covering of the greenhouses are completed during the low-temperature period of winter (e.g., from late November to early December) for cold protection management. Once the low-temperature period ends (e.g., two weeks after the start of spring), only the 500mm cold-proof film is removed, washed, dried, and stored for use the following year. The supporting structures, such as the 300mm arched bracket, 600mm ground anchor, 100mm positioning stake, and 110mm tie line, remain in place, achieving the effect of one-time construction for years of use.

[0030] In summary, this utility model relates to the field of litchi planting technology and discloses a simple cold-proof greenhouse for litchi orchards, comprising: two spaced positioning stakes and a tie line between the two positioning stakes; multiple first support rods are spaced along the length of the steel wire rope, each first support rod has an arched bracket at its bottom, the arched bracket spans the top of the litchi tree, both ends of the arched bracket are buried underground and fixed, adjacent arched brackets in the same row are connected by inter-row connectors, the top of the arched bracket is covered with a cold-proof film, the cold-proof film is not a full-coverage type, the coverage area of ​​the cold-proof film is the middle and upper part of the arched bracket, the bottom of the cold-proof film is tied and fixed to the arched bracket, and the arched top of the cold-proof film is erected on the first support rods.

[0031] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A simple cold-proof greenhouse for litchi orchards, comprising: The system comprises two spaced-apart positioning stakes (100) and a tie line (110) positioned between the two positioning stakes (100); characterized in that the tie line (110) is provided with a plurality of first support rods (200) spaced apart along its length, and each first support rod (200) has an arched bracket (300) at its bottom, the arched bracket (300) spanning the top of the lychee tree, and both ends of the arched bracket (300) being buried underground for fixation. Inter-row connectors (400) are provided between adjacent arched supports (300) in the same row. The top of the arched support (300) is covered with a cold-proof membrane (500). The cold-proof membrane (500) is set as a non-full coverage type. The coverage area of ​​the cold-proof membrane (500) is the upper middle part of the arched support (300). The bottom of the cold-proof membrane (500) is tied and fixed to the arched support (300). The top of the cold-proof membrane (500) is erected on the first support rod (200).

2. The simple cold-proof greenhouse for litchi orchards according to claim 1, characterized in that, The arched support (300) is a fiberglass tube. A second support rod (310) is fixed at the center between the arch top and the end of the arched support (300). The second support rod (310) is made of rubber. The arch height of the arched support (300) is 3.5-4 meters and the width is 5 meters.

3. The simple cold-proof greenhouse for litchi orchards according to claim 1, characterized in that, The buried end of the arched support (300) is provided with a ground anchor (600), which is a cast-in-place cement structure. An installation hole is provided in the middle of the ground anchor (600), and the depth of the installation hole is not less than 20 cm.

4. A simple cold-proof greenhouse for litchi orchards according to claim 1, characterized in that, The inter-row connector (400) is made of iron wire.

5. A simple cold-proof greenhouse for litchi orchards according to claim 1, characterized in that, The positioning stake (100) is a steel pipe, and the tie line (110) is a steel wire rope.

6. A simple cold-proof greenhouse for litchi orchards according to claim 1, characterized in that, A gap with a width of 1 cm is provided at the bottom of the adjacent cold-proof membrane (500).

7. A simple cold-proof greenhouse for litchi orchards according to claim 1, characterized in that, The first support rod (200) is connected to the arched bracket (300) by a strap.

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