Greenhouse support with automatic film winding and unwinding function

Abstract

A greenhouse support with an automatic film winding and unwinding function comprises a support body, the support body comprises a plurality of support body units, each support body unit is composed of two stand columns and an arc top arranged on the upper portions of the stand columns, and a transverse rod is arranged between the upper ends of the two stand columns in each support body unit; the support units are connected into a whole through the connecting beam, and the two ends of the connecting beam are fixed to the upper ends of the two stand columns on the same side in the two support units. A film collecting groove is formed in the top face of the connecting beam, a film rolling barrel is arranged in the film collecting groove, a top film is wound on the film rolling barrel, an arc-shaped groove is formed in the arc top side wall, a sliding block is arranged in the arc-shaped groove, a connecting rod is arranged between the two opposite sliding blocks on every two adjacent support units, and one side of the top film on the film rolling barrel is fixed to the connecting rod. By the adoption of the structure, the problems that a traditional greenhouse film rolling mechanism is poor in synchronism, a film rolling barrel is blocked due to dust accumulation, and the mechanism slips and is blocked are solved, and the purpose of automatically opening and closing a greenhouse top film is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to agricultural facilities technical field, specifically is a big -arch shelter support with automatic roll film function. BACKGROUND

[0002] With the development of modern agricultural technology, greenhouse has become an indispensable facility in agricultural production. Because the air in the greenhouse does not circulate, it is necessary to ventilate regularly during the process of vegetable planting to meet the growth needs of vegetables.

[0003] The film covering operation of the traditional greenhouse mainly relies on manual operation, and there are problems of high labor intensity and low efficiency. Although the automatic film rolling device appeared in recent years has partially solved the problem of manual operation, it still has obvious defects in actual application: 1. Most film rolling mechanisms use independent drive units to control unilateral film rolling, which leads to asynchronous development of both sides of the film covering; 2. The film rolling cylinder is usually directly externally placed on the outside of the support, which not only affects the overall structural strength but also has the risk of dust accumulation; 3. The cooperation structure of the existing arc guide rail and the film rolling mechanism is complex, and in long-term use, it is easy to appear phenomena such as traction rope slipping and sliding block jamming. In addition, the traditional film rolling device needs to configure an independent drive motor for each support unit, which not only increases the construction cost, but also makes the synchronous control of multiple motors difficult and easy to cause uneven stress on the film. SUMMARY

[0004] The technical problem to be solved by the utility model is to provide a big -arch shelter support with automatic roll film function, which solves the problems of poor synchronicity, film rolling cylinder dust accumulation and mechanism slipping and jamming in the traditional greenhouse film rolling mechanism, and realizes the automatic opening and closing of the greenhouse top film.

[0005] To solve the above technical problems, the utility model adopts the technical scheme of: a big -arch shelter support with automatic roll film function, including support, the support includes a plurality of support units, a single support unit is composed of two vertical columns and an arc top provided on the upper part of the vertical rod, and a cross bar is arranged between the upper ends of the two vertical columns in the support unit;

[0006] A plurality of support units are connected by a connecting beam to form a whole, and the connecting beam is fixed at the upper ends of the two vertical columns on the same side of the two support units;

[0007] The top surface of the connecting beam is provided with a film collecting groove, the film collecting groove is provided with a film rolling cylinder, the top film on the film rolling cylinder is wound, an arc groove is arranged on the side wall of the arc top, a sliding block is arranged in the arc groove, a connecting rod is arranged between the two opposite sliding blocks on the adjacent two support units, and one side of the top film on the film rolling cylinder is fixed on the connecting rod.

[0008] In the preferred scheme, the arc top is provided with two symmetrical arc-shaped grooves, and each of the arc-shaped grooves is provided with a slider.

[0009] In the preferred scheme, the arc top is provided with a guide rope box, the upper ends of the two arc-shaped grooves are connected to the guide rope box, the sliders in the arc-shaped grooves are provided with traction ropes, and the traction ropes pass through the guide rope box and extend downward.

[0010] The horizontal rod is provided with a support in the middle, and the same rotating rod is arranged on the supports of the plurality of support units.

[0011] In the preferred scheme, the horizontal rod is provided with a motor, and the motor shaft of the motor is connected to one end of the rotating rod through a transmission belt.

[0012] In the preferred scheme, the film winding groove is provided with a fixed rod, the film winding drum is sleeved on the fixed rod, and a coiled spring is arranged in the gap between the film winding drum and the fixed rod.

[0013] In the preferred scheme, the support is provided with an arc-shaped groove on the inner side of the arc top of the support unit at both ends, and the support unit at the middle is provided with arc-shaped grooves on both sides of the arc top.

[0014] In the preferred scheme, the traction ropes at one end of the sliders in the two arc-shaped grooves are folded in the guide rope box, pass through the opening at the bottom of the guide rope box, and are wound on the rotating rod directly below the guide rope box.

[0015] The greenhouse support with the automatic film winding and unwinding function has the following beneficial effects by adopting the above structure.

[0016] (1) The top film of the film winding drum on both sides is synchronously unwound or wound under the driving of a single motor through the integrated design of the connecting beam, the slider and the connecting rod, the film skewing and tearing problem caused by the traditional single-side driving is avoided, and the symmetry and stability of the film covering action are ensured.

[0017] (2) The film winding drum is built-in in the film winding groove, and the multiple support units are integrally connected through the connecting beam, which improves the overall wind load capacity of the support, effectively prevents the erosion of external dust and rainwater on the film winding mechanism, reduces the mechanical jamming risk, and prolongs the service life.

[0018] (3) The guide rope box integrates the traction rope path, and the concentrated winding design of the rotating rod eliminates the slipping and derailing of the traction rope when moving in the arc-shaped groove, ensures the smooth movement of the slider along the arc-shaped groove, and significantly reduces the failure rate.

[0019] (4) the elastic cooperation design of the built-in coil spring and the fixed rod in the film winding drum makes the top film keep constant tension in the winding process, and the rigid connection structure of the sliding block and the connecting rod ensures that the stress is evenly distributed when the film is unfolded, effectively preventing wrinkles. BRIEF DESCRIPTION OF DRAWINGS

[0020] The utility model will be further explained in connection with the drawings and embodiments:

[0021] Figure 1 It is the whole structure schematic diagram of the utility model.

[0022] Figure 2 It is the support structure schematic diagram of the utility model.

[0023] Figure 3 It is the support front view structure schematic diagram of the utility model.

[0024] Figure 4 It is the guide rope box section view structure schematic diagram of the utility model.

[0025] Figure 5 It is the structure schematic diagram of the utility model under the top film unfolding state.

[0026] Figure 6 It is the end view structure schematic diagram of the utility model under the film winding drum and connecting rod connection state.

[0027] In the drawing: support 1, top film 2, stand 3, cross bar 4, arc top 5, arc-shaped groove 501, connecting beam 6, film collecting groove 601, rotating rod 7, guide rope box 8, motor 9, motor shaft 901, support 10, traction rope 11, transmission belt 12, fixed rod 13, sliding block 14, connecting rod 141, film winding drum 15, coil spring 16. DETAILED DESCRIPTION

[0028] As Figures 1-6 In the drawing: support 1, top film 2, stand 3, cross bar 4, arc top 5, arc-shaped groove 501, connecting beam 6, film collecting groove 601, rotating rod 7, guide rope box 8, motor 9, motor shaft 901, support 10, traction rope 11, transmission belt 12, fixed rod 13, sliding block 14, connecting rod 141, film winding drum 15, coil spring 16.

[0029] A plurality of the support units are connected by the connecting beam 6 to form a whole, and the connecting beam 6 is fixed at the upper ends of the two stand columns 3 on the same side of the two support units.

[0030] The connecting beam 6 is provided with a film collecting groove 601 on the top surface, the film winding drum 15 is arranged in the film collecting groove 601, the top film 2 is wound on the film winding drum 15, the arc-shaped groove 501 is arranged on the side wall of the arc top 5, the sliding block 14 is arranged in the arc-shaped groove 501, the connecting rod 141 is arranged between the two opposite sliding blocks 14 on the two adjacent support units, and one side of the top film 2 on the film winding drum 15 is fixed on the connecting rod 141.

[0031] In the preferred scheme, the arc top 5 is provided with two symmetrical arc-shaped grooves 501, and each of the arc-shaped grooves 501 is provided with a sliding block 14; the two connecting beams 6 extending from the two sides of the support 1 are respectively connected to two second connecting rods 17 between the two groups of sliding blocks 14 in the two arc-shaped grooves 501.

[0032] In the preferred scheme, the arc top 5 is provided with a guide rope box 8, the upper ends of the two arc-shaped grooves 501 are connected to the guide rope box 8, the sliding blocks 14 in the arc-shaped grooves 501 are provided with traction ropes 11, and the traction ropes 11 pass through the guide rope box 8 and extend downward.

[0033] The middle part of the cross rod 4 is provided with a support 10, and the same rotating rod 7 is arranged on the supports 10 of the plurality of support units; the traction ropes 11 are wound on the portions of the rotating rods 7 on the two sides of the support 10 after passing out of the guide rope box 8.

[0034] In the preferred scheme, the bottom of the cross rod 4 is provided with a motor 9, the motor shaft 901 of the motor 9 and one end of the rotating rod 7 are connected through a transmission belt 12, and corresponding belt wheels are arranged on the motor shaft 901 and the rotating rod 7 (not shown in the figure).

[0035] In the preferred scheme, the collecting film groove 601 is provided with a fixed rod 13, the film winding drum 15 is sleeved on the fixed rod 13, and a coiled spring 16 is arranged in the gap between the film winding drum 15 and the fixed rod 13.

[0036] In the preferred scheme, the support 1 is provided with the arc-shaped groove 501 on the inner side of the arc top 5 at the two ends, and the arc-shaped groove 501 is arranged on the two sides of the arc top 5 at the middle part.

[0037] In the preferred scheme, the traction ropes 11 at the one ends of the sliding blocks 14 in the two arc-shaped grooves 501 are folded in the guide rope box 8, pass out of the bottom opening of the guide rope box 8, and are wound on the rotating rod 7 directly below the guide rope box 8.

[0038] In the utility model, when the top film 2 is unfolded or wound, the following effects can be achieved:

[0039] When the top film is unfolded, the following effects can be achieved:

[0040] The motor 9 is started, the rotating rod 7 rotates clockwise, the traction rope 11 is tightened, the sliding block 14 is pulled to slide upward from the lower end of the arc-shaped groove 501, the connecting rod 141 and the top film 2 are driven to move to the top of the arc top 5, and the top film 2 is pulled out of the film winding drum 15 and covers the top of the greenhouse.

[0041] When the top film is rolled up: the motor 9 reverses, the rotating rod 7 rotates counterclockwise, the traction rope 11 is released, the film rolling cylinder 15 automatically rotates under the elastic force of the rolling spring 16, the top film 2 is rolled back into the film rolling groove 601, and the sliding block 14 slides down along the arc-shaped groove 501 and returns to the original position.

[0042] In addition, for larger-span greenhouses, the number of support units can be increased, and the length of the connecting beam 6 and the rotating rod 7 can be extended. The connecting beam 6 is designed in a segmented splicing manner, and adjacent segments are connected by bolts to ensure the overall rigidity.

[0043] For greenhouses that only need one-sided ventilation, the arc-shaped groove 501 and the sliding block 14 structure on one side are retained, and the top film 2 of the film rolling cylinder 15 on the other side is directly fixed to the end of the connecting beam 6 to achieve one-sided independent rolling and unrolling.

[0044] A hand wheel can also be installed at one end of the rotating rod 7. When the motor 9 fails, the rolling and unrolling operation of the film can be completed by manually rotating the rotating rod 7.

Claims

1. A greenhouse support frame with automatic film rolling function, characterized in that: The support (1) comprises a plurality of support units, each support unit is composed of two columns (3) and an arc top (5) arranged at the upper part of the columns (3), and a cross bar (4) is arranged between the upper ends of the two columns (3) in the support unit. The plurality of support units are connected by connecting beams (6) to form a whole, and the two ends of the connecting beam (6) are fixed on the upper ends of the two columns (3) on the same side of the two support units. The top surface of the connecting beam (6) is provided with a film collecting groove (601), and the film collecting groove (601) is provided with a film winding drum (15), the top film (2) is wound on the film winding drum (15), the side wall of the arc top (5) is provided with an arc-shaped groove (501), the arc-shaped groove (501) is provided with a sliding block (14), and the two opposite sliding blocks (14) on the two adjacent support units are provided with a connecting rod (141), and one side of the top film (2) on the film winding drum (15) is fixed on the connecting rod (141).

2. The greenhouse support with automatic film winding and unwinding function according to claim 1, characterized in that: The arc top (5) is provided with two symmetrical arc-shaped grooves (501), and one sliding block (14) is arranged in each of the two arc-shaped grooves (501), and the top film (2) extending out of the two connecting beams (6) on the two sides of the support (1) is connected to two second connecting rods (17) arranged between the two groups of sliding blocks (14) in the two arc-shaped grooves (501), respectively.

3. The greenhouse support with automatic film winding and unwinding function according to claim 2, characterized in that: The arc top (5) is provided with a rope guide box (8), the upper ends of the two arc-shaped grooves (501) are connected to the rope guide box (8), the sliding blocks (14) in the arc-shaped grooves (501) are provided with traction ropes (11), and the traction ropes (11) pass through the rope guide box (8) and extend downward. The middle part of the cross bar (4) is provided with a support (10), a plurality of supports (10) on a plurality of support units are provided with a same rotating rod (7), and the traction ropes (11) are wound on the rotating rod (7) parts on the two sides of the support (10) after passing through the rope guide box (8).

4. The greenhouse support with automatic film winding and unwinding function according to claim 3, characterized in that: The bottom of the cross bar (4) is provided with a motor (9), and the motor shaft (901) of the motor (9) and one end of the rotating rod (7) are connected through a transmission belt (12).

5. The greenhouse support with automatic roll and release film function according to claim 1, characterized in that: A fixed rod (13) is arranged in the film collecting groove (601), the film winding drum (15) is sleeved on the fixed rod (13), and a coiled spring (16) is arranged in the gap between the film winding drum (15) and the fixed rod (13).

6. The greenhouse support with automatic roll and release film function according to claim 1, characterized in that: In the support (1), the arc-shaped grooves (501) are arranged on the inner sides of the arc top (5) of the support units at both ends, and the arc-shaped grooves (501) are arranged on the two sides of the arc top (5) of the support units in the middle.

7. The greenhouse support with automatic film winding and unwinding function according to claim 3, characterized in that: The traction ropes (11) at one end of the sliding blocks (14) in the two arc-shaped grooves (501) are folded in the rope guide box (8), and then pass through the opening at the bottom of the rope guide box (8) and are wound on the rotating rod (7) directly below the rope guide box (8).

Images