Framework for greenhouse

Abstract

The utility model relates to the technical field of greenhouses, and provides a framework for a greenhouse, which comprises a plurality of arched frames used for covering an outer film, the arched frames are arranged in parallel, a plurality of connecting structures are arranged between every two adjacent arched frames, the connecting structures are distributed along the cambered surfaces of the arched frames at equal angles, and each connecting structure comprises an arc-shaped sleeve seat. A fixing bolt is arranged in the middle of each arc-shaped sleeve seat, the arc-shaped sleeve seats are fixedly connected with the corresponding arch-shaped frames through the fixing bolts, the two sides of each arc-shaped sleeve seat are fixedly connected with casing pipes used for covering an inner film, and a connecting rod is slidably connected between the two casing pipes, corresponding in position, on the two adjacent arch-shaped frames. One end of each sleeve is provided with a positioning piece used for positioning and fixing the corresponding connecting rod. According to the utility model, the distance between two adjacent arched frames can be flexibly adjusted in the installation process so as to be suitable for installation in different terrains, and the universality is strong.

Description

Technical Field

[0001] The utility model relates to the technical field of greenhouse, specifically, to a framework for greenhouse. Background Art

[0002] Greenhouses have been widely used in agricultural production activities such as vegetable planting, flower cultivation and seedling breeding worldwide. Their basic structure consists of a steel frame main body supplemented by a heat-insulating plastic film. In order to adjust the light, an external sunshade is also provided, and supporting facilities such as rainproof, windproof, cold-proof and modern agricultural science and technology facilities are equipped, so as to realize vegetable planting, flower cultivation and seedling breeding in any season, thus smoothly realizing the transformation of traditional agriculture to modern scientific and technological agriculture. The greenhouse framework is the overall supporting structure, mainly used to cover the film.

[0003] After retrieval, the "a novel greenhouse framework" disclosed in Chinese Patent Publication No. CN208739718U includes a main support, a bottom groove, a side connecting rod, a top longitudinal rod and a top cross rod. It is characterized in that: there are several main supports arranged at equal intervals. The main support is composed of an arched frame made of T-shaped steel and two vertical rods made of C-shaped steel. The two vertical rods are connected to both ends of the arched frame by bolts. There are two bottom grooves, in a "[-]" shape, with the groove openings facing upward and arranged in parallel, and they are fixed to the bottoms of two rows of vertical rods by bolts. The side connecting rod is connected to the inner side of the vertical rod by bolts. Placing grooves are symmetrically arranged on the two web plates on both sides of the arched frame. The top longitudinal rod is located in the placing groove, and threads and nuts matching the threads are arranged at equal intervals on the top longitudinal rod. A reinforcing plate is movably sleeved between the two nuts on the top longitudinal rod.

[0004] The above patent connects and fixes two adjacent arched frames through the top longitudinal rod and bolts. However, since the length of the top longitudinal rod is fixed, the distance between two adjacent arched frames cannot be adjusted during installation, making it impossible to flexibly adjust the spacing between the arched frames to adapt to different terrains when installing in different terrains. In addition, the arched frame of this patent can only be used to cover one layer of film, and this structure has insufficient heat preservation and cannot ensure the normal growth of plants in the greenhouse. In view of this, the utility model proposes a framework for greenhouse. Summary of the Utility Model

[0005] The utility model proposes a framework for greenhouse, which solves the problem that the distance between two adjacent arched frames cannot be adjusted.

[0006] The technical solution of the utility model is as follows: a frame for a greenhouse, comprising a plurality of arch frames for covering an outer film, wherein the plurality of arch frames are arranged in parallel, and a plurality of connecting structures are arranged between two adjacent arch frames, and the plurality of connecting structures are distributed at equal angles along the curved surface of the arch frames, and the connecting structure comprises an arcuate sleeve, a fixing bolt is arranged in the middle of the arcuate sleeve, and the arcuate sleeve is fixedly connected to the corresponding arch frame by the fixing bolt, and sleeves for covering an inner film are fixedly connected on both sides of the arcuate sleeve, and a connecting rod is slidably connected between two sleeves corresponding to positions on two adjacent arch frames, and a positioning piece for positioning and fixing the connecting rod is arranged at one end of the two sleeves.

[0007] Preferably, a plurality of mounting holes are provided on the curved surface of the arch frame, and the fixing bolt can be slidably matched with any of the mounting holes.

[0008] Preferably, a receiving groove is formed on the top wall of the arc-shaped sleeve to be slidably matched with the nut of the fixing bolt, and the depth of the receiving groove is greater than the thickness of the nut of the fixing bolt.

[0009] Preferably, the positioning member includes a sliding rod passing through the inner wall of the sleeve, the sliding rod is slidably connected to the inner wall of the sleeve, one end of the sliding rod is fixedly connected to a positioning block, the positioning block is slidably connected to the connecting rod, and the other end of the sliding rod is fixedly connected to a pulling block.

[0010] Preferably, the connecting rod is provided with a plurality of positioning holes which are slidably matched with the positioning block, and the plurality of positioning holes are equidistantly distributed along the length direction of the connecting rod.

[0011] Preferably, the inner wall of the sleeve is provided with a clearance groove which slidably cooperates with the positioning block, and the slide rod is sleeved with a return spring, one end of the return spring abuts against the positioning block, and the other end of the return spring abuts against the inner wall of the clearance groove.

[0012] Preferably, the diameter of the positioning block is larger than the diameter of the sliding rod, and the thickness of the positioning block is the same as the depth of the clearance groove.

[0013] The working principle and beneficial effects of the utility model are:

[0014] 1. Fix the arc sleeve on the arch frame by fixing bolts, and then install the connecting rods in the corresponding sleeves on the two adjacent arch frames. Since the connecting rods and the sleeves are slidably connected, the distance between the two adjacent arch frames can be adjusted by sliding the connecting rods. After determining the spacing, the connecting rods are positioned and fixed by the positioning pieces. The whole structure can realize the rapid installation of the arch frame, and the spacing between the two adjacent arch frames can be flexibly adjusted during the installation process, so that it can be suitable for installation on different terrains, and has strong versatility.

[0015] 2. The arch frame can be used to cover the outer film, and the sleeve can be used to cover the inner film, so that the overall framework can cover the double-layer film, thus greatly improving the heat preservation performance of the greenhouse and being beneficial to the normal growth of plants inside the greenhouse. Brief Description of the Drawings

[0016] The present utility model will be further described in detail below in conjunction with the drawings and specific embodiments.

[0017] Figure 1 Structural schematic diagram of a framework for a greenhouse of the present utility model Figure 1 ;

[0018] Figure 2 Structural schematic diagram of a framework for a greenhouse of the present utility model Figure 2 ;

[0019] Figure 3 Structural schematic diagram of the connection structure of the present utility model;

[0020] Figure 4 Structural schematic diagram of the arch frame of the present utility model;

[0021] Figure 5 Structural schematic diagram of the positioning member of the present utility model.

[0022] In the figure: 1. Arch frame; 11. Mounting hole; 2. Outer film; 3. Connection structure; 31. Arc socket; 32. Fixed bolt; 33. Receiving groove; 34. Sleeve; 35. Connecting rod; 36. Positioning hole; 37. Positioning member; 371. Slide bar; 372. Pull block; 373. Positioning block; 374. Relief groove; 375. Return spring; 4. Inner film. Specific Embodiments

[0023] The technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts fall within the scope of protection of the present utility model.

[0024] Such as Figures 1 to 5As shown in the figure, this embodiment proposes a framework for a greenhouse, which includes a number of arch frames 1 for covering the outer film 2. The arch frames 1 are arranged in parallel, and a number of connecting structures 3 are provided between adjacent arch frames 1. The connecting structures 3 are distributed at equal angles along the arc surface of the arch frame 1. The connecting structure 3 includes an arc-shaped socket 31, and a fixing bolt 32 is provided in the middle of the arc-shaped socket 31. The arc-shaped socket 31 is fixedly connected to the corresponding arch frame 1 through the fixing bolt 32. A number of mounting holes 11 are provided on the arc surface of the arch frame 1, and the fixing bolt 32 can be slidably matched with any one of the mounting holes 11. A receiving groove 33 for slidably matching with the nut of the fixing bolt 32 is provided on the top wall of the arc-shaped socket 31. The depth of the receiving groove 33 is greater than the thickness of the nut of the fixing bolt 32. Both sides of the arc-shaped socket 31 are fixedly connected with sleeves 34 for covering the inner film 4. A connecting rod 35 is slidably connected between two sleeves 34 corresponding in position on adjacent arch frames 1. Positioning members 37 for positioning and fixing the connecting rod 35 are provided at one ends of the two sleeves 34.

[0025] The arc-shaped socket 31 is fixed on the arch frame 1 through the fixing bolt 32, and then the connecting rods 35 are respectively installed in the sleeves 34 corresponding in position on adjacent arch frames 1. Since the connecting rod 35 and the sleeve 34 are slidably connected, the distance between adjacent arch frames 1 can be adjusted by sliding the connecting rod 35. After determining the spacing, the connecting rod 35 is positioned and fixed through the positioning member 37. The entire structure can achieve the rapid installation of the arch frame 1, and at the same time, the spacing between adjacent arch frames 1 can be flexibly adjusted during the installation process, so that it can be applicable to the installation of different terrains and has strong versatility.

[0026] Furthermore, the outer film 2 can be covered by the arch frame 1, and the inner film 4 can be covered by the sleeve 34, so that the overall framework can cover a double-layer film, which can greatly improve the heat preservation performance of the greenhouse and is beneficial to the normal growth of plants inside the greenhouse.

[0027] Further, the positioning member 37 includes a sliding rod 371 penetrating the inner wall of the sleeve 34. The sliding rod 371 is slidably connected to the inner wall of the sleeve 34. One end of the sliding rod 371 is fixedly connected with a positioning block 373. The positioning block 373 is slidably connected to the connecting rod 35. The other end of the sliding rod 371 is fixedly connected with a pulling block 372. A number of positioning holes 36 slidably matched with the positioning block 373 are provided on the connecting rod 35. The positioning holes 36 are distributed at equal intervals along the length direction of the connecting rod 35. A relief groove 374 slidably matched with the positioning block 373 is provided on the inner wall of the sleeve 34. A return spring 375 is sleeved on the sliding rod 371. One end of the return spring 375 abuts against the positioning block 373, and the other end of the return spring 375 abuts against the inner wall of the relief groove 374. The diameter of the positioning block 373 is larger than the diameter of the sliding rod 371, and the thickness of the positioning block 373 is the same as the depth of the relief groove 374.

[0028] Working principle: First, fix all arc-shaped sleeves 31 on the corresponding arch frames 1 by fixing bolts 32, and then install the connecting rods 35 in the corresponding sleeves 34 on the two adjacent arch frames 1, and pull the pull block 372 outward to make the slide bar 371 slide, so that the positioning block 373 and the clearance groove 374 are fully matched. At this time, the reset spring 375 is compressed to accumulate potential energy, and then the distance between the two adjacent arch frames 1 can be adjusted by sliding the connecting rod 35. After determining the spacing, release the pull block 372, and the reset spring 375 releases the potential energy to make the slide bar 371 slide in the opposite direction. , so that the positioning block 373 and the positioning hole 36 on the connecting rod 35 are slidably matched, so that the connecting rod 35 and the sleeve 34 are kept fixed, and the entire structure can realize the rapid installation of the arch frame 1, and at the same time, the distance between two adjacent arch frames 1 can be flexibly adjusted during the installation process, so that it can be suitable for installation in different terrains, and has strong versatility; furthermore, the arch frame 1 can be used to cover the outer film 2, and the sleeve 34 can be used to cover the inner film 4, so that the overall skeleton can be covered with a double-layer film, thereby greatly improving the thermal insulation of the greenhouse, which is beneficial to the normal growth of plants inside the greenhouse.

[0029] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A greenhouse frame, comprising a plurality of arch frames (1) for covering an outer film (2), wherein the plurality of arch frames (1) are arranged in parallel, and characterized in that: A plurality of connection structures (3) are provided between two adjacent arch frames (1), and the plurality of connection structures (3) are distributed at equal angles along the arc surface of the arch frame (1). The connection structure (3) comprises an arc sleeve (31), a fixing bolt (32) is provided in the middle of the arc sleeve (31), and the arc sleeve (31) is fixedly connected to the corresponding arch frame (1) via the fixing bolt (32). Both sides of the arc sleeve (31) are fixedly connected with sleeves (34) for covering the inner membrane (4), and a connecting rod (35) is slidably connected between two sleeves (34) at corresponding positions on the two adjacent arch frames (1), and one end of each of the two sleeves (34) is provided with a positioning member (37) for positioning and fixing the connecting rod (35).

2. A greenhouse frame according to claim 1, characterized in that: A plurality of mounting holes (11) are provided on the curved surface of the arch frame (1), and the fixing bolt (32) can be slidably matched with any mounting hole (11).

3. A greenhouse frame according to claim 1, characterized in that: The top wall of the arc-shaped sleeve (31) is provided with a receiving groove (33) that is slidably matched with the nut of the fixing bolt (32), and the depth of the receiving groove (33) is greater than the thickness of the nut of the fixing bolt (32).

4. A greenhouse frame according to claim 1, characterized in that: The positioning member (37) comprises a sliding rod (371) penetrating the inner wall of the sleeve (34); the sliding rod (371) is slidably connected to the inner wall of the sleeve (34); one end of the sliding rod (371) is fixedly connected to a positioning block (373); the positioning block (373) is slidably connected to the connecting rod (35); and the other end of the sliding rod (371) is fixedly connected to a pulling block (372).

5. A greenhouse frame according to claim 4, characterized in that: The connecting rod (35) is provided with a plurality of positioning holes (36) that are slidably matched with the positioning block (373), and the plurality of positioning holes (36) are equidistantly distributed along the length direction of the connecting rod (35).

6. A greenhouse frame according to claim 5, characterized in that: The inner wall of the sleeve (34) is provided with a clearance groove (374) that slidably cooperates with the positioning block (373), and the slide rod (371) is sleeved with a return spring (375), one end of the return spring (375) abuts against the positioning block (373), and the other end of the return spring (375) abuts against the inner wall of the clearance groove (374).

7. A greenhouse frame according to claim 6, characterized in that: The diameter of the positioning block (373) is larger than the diameter of the sliding rod (371), and the thickness of the positioning block (373) is the same as the depth of the clearance groove (374).

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