Greenhouse based on short span and without supporting columns

Abstract

The utility model discloses a short-span strut-free greenhouse, relates to the technical field of greenhouses, and aims to solve the problems that a front slope single-layer greenhouse is poor in heat preservation capacity and the front slope double-layer greenhouse is poor in bearing strength. Comprising a horizontal framework, an outer greenhouse framework and an inner greenhouse framework, and the outer greenhouse framework is of an arched structure with one side inclining to form an arc. The rear wall heat preservation plate is installed on the greenhouse framework, the quilt rolling device support is installed on the greenhouse framework, and the foot margin cotton quilt is installed on a front slope of the greenhouse framework. The outer greenhouse framework is supported through the inner greenhouse framework, a central supporting column does not need to be arranged, the laying positions of inner and outer greenhouse films and cotton quilts can be reserved, and the space use efficiency in the greenhouse and the illumination condition for crop growth are improved. The overall bearing capacity of the greenhouse framework is guaranteed, and the risk that the greenhouse framework is damaged by overlarge snow load is avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of short-span, pillarless greenhouses, specifically a short-span, pillarless greenhouse. Background Technology

[0002] Traditional agricultural greenhouses typically have a single-layered front slope. This allows for the installation of pillars within the greenhouse to ensure its load-bearing capacity. However, the single-layer design of the front slope results in insufficient insulation performance and rapid heat loss. On the other hand, a double-layered front slope cannot effectively support the outer shed against snow loads and wind pressure through pillars. Therefore, there is an urgent need to design a solution that can guarantee both the greenhouse's insulation performance and its load-bearing capacity. Utility Model Content

[0003] To address the aforementioned problems, namely the issues raised in the background art, this utility model proposes a short-span, pillarless greenhouse, comprising a greenhouse frame connected to the greenhouse foundation, a rear wall insulation board installed on the greenhouse frame, a blanket-rolling bracket installed on the greenhouse frame, and a ground-level blanket installed on the front slope of the greenhouse frame. The greenhouse frame includes a horizontal frame, an outer frame, and an inner frame. The outer frame is an arched structure with one side inclined in an arc shape, and the inner frame is an arc-shaped semi-arched structure. The top of the inner frame is connected to the inclined side of the outer frame through a connector.

[0004] A further feature of this invention is that an inclined beam is provided between the inner wall of the inner frame and the inclined part of the outer frame, and the two ends of the inclined beam are connected to the inner frame and the outer frame respectively through connectors.

[0005] A further feature of this invention is that bolt holes for mounting bolts are provided on both sides of the connector, and at least one of the bolt holes is configured as a rectangle that allows the bolt to slide.

[0006] A further feature of this invention is that both the inner greenhouse frame and the inclined beam are made of hollow tubular components. One end of the hollow tubular component, which is fitted with a connector, is inserted with a damping pad for filling the gap at the connection of the greenhouse frame. The damping pad is configured as a boss structure, and the smaller diameter end of the boss structure is inserted into the hollow tubular component.

[0007] A further feature of this invention is that a frost-proof board is provided below the rear wall insulation board, the frost-proof board is buried underground, and the frost-proof board is tightly attached to the rear wall insulation board.

[0008] The beneficial technical effects of this utility model are as follows: The double-layer design on the front slope reduces heat loss after the greenhouse film is laid, ensuring the greenhouse's insulation performance. The inner greenhouse frame supports the outer greenhouse frame, eliminating the need for a central pillar and preserving the positions for both inner and outer greenhouse films and quilts, thus improving the space utilization efficiency within the greenhouse and the light conditions for crop growth. It ensures the overall load-bearing capacity of the greenhouse frame, avoiding the risk of damage from excessive snow loads. The rectangular bolt holes on the connectors enable flexible connections between the greenhouse frames, allowing for slight swaying and stress relief even in windy conditions, preventing rigid breakage at the joints. The damping pads absorb force, cushion impacts, and mitigate damage, extending the service life of the greenhouse frame. Attached Figure Description

[0009] Figure 1 A schematic diagram of the overall structure of this solution is shown.

[0010] Figure 2 A schematic diagram of the connection between the inner and outer canopy frames of this design is shown.

[0011] Figure 3 A schematic diagram of the damping pad installation point on the inner canopy frame is shown.

[0012] Figure 4 A schematic diagram of the damping pad installation point on the inclined beam is shown.

[0013] The attached diagram is labeled as follows: 1. Outer shed frame; 2. Inner shed frame; 3. Horizontal frame; 4. Inclined beam; 5. Blanket roller bracket; 6. Rear wall insulation board; 7. Frost insulation board; 8. Foot quilt; 9. Connector; 10. Damping pad. Detailed Implementation

[0014] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0015] This utility model proposes a short-span, pillarless greenhouse. Since the rear wall and the gable walls on both sides of the greenhouse are insulated with insulation boards, the main heat loss occurs at the front slope where only the greenhouse film is installed. At night, cotton blankets can be laid down for insulation, but during the day, the blankets need to be rolled up so that sunlight only reaches the inside of the greenhouse. Therefore, the greenhouse is designed with a single layer for the rear and gable walls and a double layer for the front slope. The main structure of the greenhouse that bears snow load and wind pressure is the outer shed. If columns are installed to support the outer shed and prevent it from collapsing, the columns need to pass through the inner shed and be connected to the outer shed for fixation. This would prevent the inner shed from being covered with greenhouse film and cotton blankets, which would violate the purpose of designing the front slope as a double layer. Therefore, the inner shed frame 2 is designed as a semi-arched structure that connects to the inclined part of the outer shed frame 1. It can replace the central column in the short-span greenhouse and play the role of supporting the outer shed frame 1. This design can ensure that short-span greenhouses with a span of less than 10 meters do not need to be equipped with a central column.

[0016] An inclined beam 4 is installed between the inner wall of the inner frame 2 and the inclined part of the outer frame 1, which can increase the overall load-bearing capacity of the greenhouse frame and prevent excessive snow load from damaging the greenhouse frame.

[0017] By setting the bolt holes of connector 9 into rectangular grooves that allow the bolts to slide, the rigid connection can be changed into a flexible connection while ensuring the connection. In continuous windy weather, a certain range of relative sliding can be generated between the greenhouse frames. This sliding causes the greenhouse to sway slightly to release the force, thereby avoiding rigid breakage at the connection.

[0018] The gaps at the joints are filled with damping pads 10 that have elastic deformation capabilities. When the greenhouse frames slide relative to each other, they can repeatedly deform and reset to absorb force, buffer the impact generated by mechanical movement, reduce the damage to the greenhouse frames, and extend the service life of the greenhouse frames.

[0019] Although the present invention has been described with reference to preferred embodiments, various modifications can be made to it and components can be replaced with equivalents without departing from the scope of the present invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0020] In the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to those processes, articles, or apparatus / devices.

[0023] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A short-span, pillarless greenhouse, comprising a greenhouse frame connected to the greenhouse foundation, a rear wall insulation board (6) installed on the greenhouse frame, a blanket-rolling bracket (5) installed on the greenhouse frame, and a ground-level blanket (8) installed on the front slope of the greenhouse frame, characterized in that: The greenhouse frame includes a horizontal frame (3), an outer frame (1) and an inner frame (2). The outer frame (1) is an arched structure with one side inclined in an arc shape. The inner frame (2) is an arc-shaped semi-arched structure. The top of the inner frame (2) is connected to the inclined side of the outer frame (1) through a connector (9).

2. A short-span, pillarless greenhouse according to claim 1, characterized in that: An inclined beam (4) is provided between the inner wall of the inner frame (2) and the inclined part of the outer frame (1). The two ends of the inclined beam (4) are connected to the inner frame (2) and the outer frame (1) respectively through connectors (9).

3. A short-span, pillarless greenhouse according to claim 1 or 2, characterized in that: The connector (9) has bolt holes on both sides for installing bolts, and at least one of the bolt holes is set in a rectangle that allows the bolt to slide.

4. A short-span, pillarless greenhouse according to claim 3, characterized in that: The inner frame (2) and the inclined beam (4) are both made of hollow tubes. One end of the hollow tube is fitted with a connector (9) and a damping pad (10) is inserted to fill the gap at the connection of the greenhouse frame. The damping pad (10) is set as a boss structure and the small diameter end of the boss structure is inserted into the hollow tube.

5. A short-span, pillarless greenhouse according to claim 1, characterized in that: A frost-proof board (7) is provided below the rear wall insulation board (6). The frost-proof board (7) is buried underground and is tightly attached to the rear wall insulation board (6).

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