Long-span strut-free greenhouse

Abstract

The utility model discloses a long-span strut-free greenhouse, which relates to the technical field of greenhouses, aims to solve the problem of insufficient bearing capacity of the greenhouse due to the fact that upright posts cannot be arranged on a front slope double-layer greenhouse, and comprises a greenhouse framework mounted on a foundation and an insulation board mounted on the greenhouse framework. The greenhouse framework is formed by assembling a vertical framework and a horizontal framework through connecting pieces, and the vertical framework comprises an outer greenhouse framework, an inner greenhouse framework and a flower beam used for increasing the bearing capacity. Through the double-layer design of the front slope, after the greenhouse film is laid, greenhouse temperature loss can be reduced, the heat preservation performance of the greenhouse is guaranteed, the outer greenhouse framework is supported through the inner greenhouse framework, a center supporting column does not need to be arranged, and the laying positions of the inner greenhouse film, the outer greenhouse film and cotton quilts can be reserved; and the space use efficiency in the greenhouse and the illumination condition for crop growth are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of greenhouse big -arch shelter based on long span no support, concretely is a kind of greenhouse big -arch shelter based on long span no support. BACKGROUND

[0002] Traditional agricultural greenhouse, front slope generally adopts single layer, so that it can set up stand in the greenhouse, ensure the bearing capacity of greenhouse, but the single layer design of front slope can lead to serious lack of thermal performance, greenhouse temperature loss too fast, and front slope of greenhouse is set into double layer, and outer shed cannot be supported by stand to mainly bear snow load and wind pressure, and the area of outer shed bearing snow load is too large in long-span greenhouse, which leads to deformation and damage of outer collision skeleton, therefore, it is urgent to design a scheme which can ensure the thermal performance of greenhouse and the bearing capacity of greenhouse. SUMMARY

[0003] To solve the above problems, i.e. to solve the problems raised in the above background art, the utility model provides a greenhouse big-arch shelter based on long span no support, which comprises a greenhouse skeleton installed on a foundation, and a thermal insulation board installed on the greenhouse skeleton. The greenhouse skeleton is assembled by vertical skeletons and horizontal skeletons through connecting pieces. The vertical skeletons comprise an outer shed skeleton, an inner shed skeleton and a girt for increasing the bearing capacity. The outer shed skeleton is arranged as a structure with one side inclined and the other side semi-arched. The inner shed skeleton is semi-arched, and the top end of the inner shed skeleton is connected and fixed to the inclined part of the outer shed skeleton through a mounting piece. The girt is welded to the inner wall of the semi-arched structure of the outer shed skeleton. An inclined beam is installed at the inclined part of the outer shed skeleton and the inner wall of the inner shed skeleton.

[0004] A damper is installed on the inner shed skeleton through a hook. The damper is composed of a hanging rope and a weight. The weight is installed on the hook through the hanging rope.

[0005] Further, the connecting piece is a sheet structure bent into a V shape, the horizontal skeleton is arranged on the inner wall of the bending part, an oval slot is formed in the central part of the connecting piece, an opening smaller than the inner diameter of the oval slot is formed on one side of the oval slot, the diameter of the opening is larger than the pipe diameter of the vertical skeleton, the vertical skeleton is arranged in the oval slot, a bolt is inserted into the end part of the connecting piece, nuts are threadedly connected to the upper and lower sides of the bolt, and the nuts are arranged on the inner side of the V-shaped structure of the connecting piece.

[0006] Further, a frost insulation board is arranged below the thermal insulation board, and the frost insulation board is buried underground and closely attached to the thermal insulation board.

[0007] The utility model discloses a beneficial technical effect is: through the design of front slope double -deck, can after the shed film laying, reduce the loss of shed temperature, has guaranteed the heat preservation performance of the greenhouse, through the inner shed framework support outer shed framework, need not set up center pillar, and can keep the laying position of inner and outer greenhouse shed film and cotton quilt, improved the space use efficiency of greenhouse inside and the light condition of crop growth, through the beam and inclined beam, has guaranteed the overall carrying capacity of the greenhouse framework, avoided the risk that the big snow load will damage the greenhouse framework, through damper can significantly reduce the shaking amplitude of greenhouse under the action of wind and the like external force, improve the stability and safety of building, through the consumption shaking energy, damper can reduce the fatigue damage of greenhouse structure, prolong the service life of greenhouse, through the connecting piece can improve the installation efficiency of staff, has saved through the boring and the cumbersome installation mode of bolt fixation. BRIEF DESCRIPTION OF DRAWINGS

[0008] Figure 1 The overall structure schematic diagram of the scheme is shown.

[0009] Figure 2 The main view structure schematic diagram of connecting piece is shown.

[0010] Figure 3 The top view structure schematic diagram of connecting piece is shown.

[0011] Fig. 1, outer shed framework, 2, beam, 3, inner shed framework, 4, horizontal framework, 5, connecting piece, 6, damper, 7, heat preservation board, 8, frost insulation board. DETAILED DESCRIPTION

[0012] The preferred embodiments of the utility model are described below with reference to the drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the utility model, and are not intended to limit the protection scope of the utility model.

[0013] The utility model provides a kind of greenhouse based on long-span without pillar, since greenhouse rear wall and both sides' gable are all used heat preservation board to keep warm, therefore greenhouse temperature main loss place is only set up shed membrane at front slope, cotton quilt can be put down to keep warm at night, but cotton quilt needs to be rolled up to make sunlight irradiation only greenhouse interior during daytime, therefore greenhouse is set into rear wall and gable single layer, front slope is set into double layer, and the structure that greenhouse mainly bears snow load and wind pressure is outer shed, if setting up stand to support outer shed to avoid its collapse, need stand to pass through inner shed and outer shed connection fixed, then lead to inner shed cannot lay shed membrane and cotton quilt, violate the purpose that front slope is set into double layer, simultaneously, the snow load surface that long-span greenhouse outer shed framework bears is also too long when span is greater than 10m, outer shed will be deformed because it cannot bear too large weight after heavy snow covers, therefore inner shed framework 3 is set into half-arch structure with outer shed framework 1 inclined place connection, can replace central pillar in long-span greenhouse, cooperate with inclined beam to play the role of supporting outer shed framework 1, and weld flower beam 2 in the arch structure of outer shed framework 1 inner wall, increase the carrying capacity of outer shed framework 1, this design can guarantee that the long-span greenhouse of more than 10m does not need to set central stand.

[0014] Since long-span greenhouse will produce certain deformation and swing in continuous windy weather, the damper composed of hoisting hanging rope and weight can move with it, can significantly reduce the swing amplitude of greenhouse under the action of external force such as strong wind, improve the stability and safety of building, by consuming swing energy, damper 10 can reduce the fatigue damage of greenhouse structure, prolong the service life of greenhouse.

[0015] Connecting piece 5 is sheet material and is set into V-shaped structure with middle bending, oval slot is opened in the middle of the straight line on the upper and lower sides of connecting piece 5, the opening smaller than the inner diameter of the slot is formed on one side of the oval slot, the opening distance is greater than the vertical framework, when installing, the bending part of V-shaped structure is sleeved on horizontal framework 4, so as to limit the up-down movement of horizontal framework 4, the vertical framework is sleeved into the oval slot through the opening, then the upper and lower side nuts are screwed, the straight line on the upper and lower sides of connecting piece 5 is expanded by the nut, so that connecting piece 5 is opened, at this time, the vertical pipe is relatively offset in the opening, so as to limit the vertical framework from separating, at the same time, the vertical framework is inclined and clamped in the oval slot, so as to limit the sliding of connecting piece 5 on the vertical framework.

[0016] Although the utility model has been described with reference to the preferred embodiments, various improvements can be made and equivalent parts can be replaced without departing from the scope of the utility model, especially, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way. The utility model is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

[0017] In the description of the utility model, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and other terms indicating direction or positional relationship are based on the direction or positional relationship shown in the drawings, which is merely for the convenience of description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0018] In addition, it also needs to be explained that, in the description of the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be broadly understood, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0019] The term "comprising" or any other similar word is intended to cover non-exclusive inclusion, so that the process, article or equipment / device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes the elements inherent in the process, article or equipment / device.

[0020] So far, the technical scheme of the utility model has been described in combination with the preferred embodiments shown in the drawings, but those skilled in the art can easily understand that the protection scope of the utility model is obviously not limited to these specific embodiments. Without deviating from the principles of the utility model, those skilled in the art can make equivalent changes or replacements to related technical features, and the technical scheme after the changes or replacements will fall within the protection scope of the utility model.

Claims

1. A long-span pillar-free greenhouse based on a greenhouse frame installed on a foundation, a heat preservation plate (7) installed on the greenhouse frame, characterized in that: The greenhouse framework is assembled by vertical framework and horizontal framework (4) through connecting piece (5), the vertical framework includes outer greenhouse framework (1), inner greenhouse framework (3) and be used to increase carrying capacity flower beam (2), the outer greenhouse framework (1) is set to one side is inclined one side half-arch structure, the inner greenhouse framework (3) is half-arch structure, and the top of inner greenhouse framework (3) is connected and fixed with the inclined place of outer greenhouse framework (1) through mounting piece, the flower beam (2) is welded in the inner wall place of outer greenhouse framework (1) half-arch structure, and the inclined place of outer greenhouse framework (1) is installed with inclined beam with the inner wall place of inner greenhouse framework (3). The inner greenhouse framework (3) is installed with damper (6) through hook, the damper (6) is composed of hanging rope and weight, the weight is installed in the hook place through hanging rope.

2. A long-span column-free based greenhouse according to claim 1, characterized in that: The connecting piece (5) is the sheet structure of V-shaped bending, the horizontal framework (4) is arranged on the inner wall of bending place, the central part of connecting piece (5) is provided with oval slot, one side of oval slot is provided with the opening smaller than the inner diameter of oval slot, the diameter of opening is greater than the pipe diameter of vertical framework, the vertical framework is arranged in oval slot, the end of connecting piece (5) is inserted with bolt, the upper and lower sides of bolt are threadedly connected with nut, and the nut is in the inside of V-shaped structure of connecting piece (5).

3. A long-span column-free based greenhouse according to claim 1, characterized in that: The lower part of heat preservation board (7) is provided with freeze insulation board (8), the freeze insulation board (8) is buried in the ground, and the freeze insulation board (8) is closely attached with heat preservation board (7).

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