Agricultural rain shelter

Abstract

This utility model relates to an agricultural rain shelter, comprising several rain shelter units. Each rain shelter unit includes a rain-shielding film, a movable rod, and two spaced-apart supports, with a limiting frame formed at the top of the supports. A first longitudinal beam and a second longitudinal beam are connected between the two ends of the two limiting frames. The movable rod passes through the two limiting frames, with a first take-up reel and a second take-up reel fixedly installed at both ends. A first cable and a second cable are wound around the two take-up reels respectively, with the two cables wound in opposite directions. The two ends of the first cable are fixed to the first take-up reel and the first longitudinal beam respectively, and the two ends of the second cable are fixed to the second take-up reel and the second longitudinal beam respectively. The rain-shielding film is fixed to the movable rod and between any of the longitudinal beams. The movable rods of any two adjacent rain shelter units are connected by a telescopic universal joint. This utility model can adaptively adjust the placement angle of each rain shelter unit according to the shape of the crop planting plot, and can realize the rolling up and unfolding of the top rain-shielding film.

Description

Technical Field

[0001] This utility model relates to the field of agricultural technology, specifically to an agricultural rain shelter. Background Technology

[0002] In existing technology, the structure of a rain shelter for crops (vegetables, fruit trees, etc.) includes several supports arranged at intervals along the length of the rain shelter. At least two parallel guide rails are attached to the top of the supports. The guide rails are arranged along the length of the rain shelter, and a rain-proof film is installed between adjacent guide rails. The two ends of the rain-proof film are connected to sliding members in the two guide rails, and can slide on the guide rails with the sliding members. When it rains, the rain-proof film is fully unfolded to provide rain protection. When the weather is sunny, in order to allow the crops to receive sunlight, the rain-proof film is folded back to the end of the guide rail. However, since the rain-proof film slides along the length of the rain shelter to the end of the guide rail when folding it back, it takes a long time when the length of the rain shelter is long, resulting in low film folding efficiency. At the same time, the above-mentioned film folding structure is only suitable for agricultural rain shelters that are long and straight. When the rain shelter needs to be set into a curved shape to adapt to the shape of the crop planting plot, the above-mentioned film folding structure cannot be applied. Utility Model Content

[0003] The purpose of this invention is to provide an agricultural rain shelter that addresses the problem that existing film-collecting structures are only suitable for long and straight rain shelters, and cannot be applied when the rain shelter needs to be set into a curved shape to adapt to the shape of crop planting plots.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] An agricultural rain shelter includes several rain shelter units connected in sequence. Each rain shelter unit includes a rain-shielding film, a movable rod, and two spaced-apart supports. A long, rectangular "U"-shaped limiting frame is formed at the top of each support. A first longitudinal beam connects one end of the limiting frames of the two supports, and a second longitudinal beam connects the other end. The movable rod passes through the two limiting frames, and a first take-up reel and a second take-up reel are fixedly installed at both ends of the movable rod. The limiting frame is confined between the first and second take-up reels. A first cable and a second cable are wound around the first and second take-up reels respectively, with opposite winding directions. The two ends of the first cable are fixed to the first take-up reel and the first longitudinal beam, respectively, and the two ends of the second cable are fixed to the second take-up reel and the second longitudinal beam, respectively. One end of the rain-shielding film is fixed to the movable rod, and the other end is fixed to either the first or second longitudinal beam. The movable rods of any two adjacent rain shelter units are connected by a telescopic universal joint.

[0006] In this utility model employing the aforementioned technical solution, when the movable rod of any rain shelter unit is rotated, the movable rod drives the first take-up reel and the second take-up reel to rotate synchronously and in the same direction. Since the winding direction of the first cable on the first take-up reel and the winding direction of the second cable on the second take-up reel are opposite, one of the first take-up reel and the other take-up reel must be taking in the cable, and the other take-up reel is releasing the cable. As the take-up reel takes in the cable, the release reel releases the cable, and the movable rod will roll forward within the limiting frame. When the movable rod is rotated in the opposite direction, the previously take-up reel becomes the release reel, and the previously release take-up reel becomes the take-up reel, and the movable rod will roll forward in the opposite direction within the limiting frame. This achieves the unfolding and rewinding of the rain shelter film on the movable rod. Furthermore, since the movable rods of adjacent rain shelter film units are connected by a telescopic universal joint, when adjacent rain shelter film units are arranged in a certain shape... Even when the angle is formed, the transmission connection between the movable rods can still be achieved. That is, only one movable rod needs to be driven to rotate to drive the rainproof film of all rainproof awning units to retract and unfold. At this time, the entire rainproof awning forms a multi-section structure composed of several rainproof awning units connected in sequence, similar to the connection structure of each carriage of a train. The rainproof awning of this structure can adaptively adjust the placement angle of each rainproof awning unit according to the shape of the crop planting plot, forming a multi-section bent shape as a whole. Compared with the existing film-retracting structure, which is only suitable for retracting the film of a long and straight rainproof awning, and cannot be used when the rainproof awning needs to be set into a bent shape to adapt to the shape of the crop planting plot, the agricultural rainproof awning of this utility model can adaptively adjust the placement angle of each rainproof awning unit according to the shape of the crop planting plot, forming a multi-section bent shape as a whole. Moreover, this rainproof awning can realize the rolling up and unfolding of the top rainproof film.

[0007] Furthermore, a guide rail is connected between the ends of the first and second longitudinal beams on the end-mounted rain shelter unit, and the length direction of the guide rail is parallel to the length direction of the limiting frame; a reduction motor is also provided on the end-mounted rain shelter unit, and a mounting base is fixed on the housing of the reduction motor. The mounting base is slidably mounted on the guide rail, and the output shaft of the reduction motor is connected to the end of the movable rod; the reduction motor drives the movable rod to rotate, and the reduction motor can move synchronously on the guide rail as the movable rod moves. The reduction motor serves as a driving power source, has a simple structure, and is easy to control in terms of steering and speed.

[0008] Furthermore, any of the aforementioned supports is pointed, comprising two inclined limiting frames, which are symmetrically arranged and connected to each other to form a Λ-shaped structure. With this arrangement, a set of the aforementioned film-collecting structures is provided on each side of the top of the rain shelter unit. The pointed design also makes it difficult for rainwater to accumulate on the rain shelter film. In addition, by forming a frame structure at the top of the support, the top structure of the support has greater strength.

[0009] Furthermore, any of the aforementioned rain shelter units includes two first longitudinal beams located on the two sides of the top and a second longitudinal beam located in the middle of the top; the two sets of membrane-retracting structures at the top of the rain shelter share a second longitudinal beam, which simplifies the structure of the rain shelter.

[0010] Furthermore, the limiting frame includes an upper push rod and a lower push rod; a support wheel is provided between the first take-up reel and the second take-up reel, and the support wheel is rotatably mounted on the movable rod; an annular limiting groove is formed on the circumference of the support wheel, and the upper push rod and the lower push rod are partially embedded in the limiting groove; this arrangement allows the movable rod to move smoothly within the limiting frame.

[0011] Furthermore, bolts are fixed on both the first and second take-up reels. One end of the first cable is tied to the bolt on the first take-up reel, and one end of the second cable is tied to the bolt on the second take-up reel. By tying the cables to the bolts, the cable is securely and reliably fixed.

[0012] Furthermore, both the first and second cables are made of steel wire; steel wire has high strength and good toughness, and is not easily worn or broken.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: the agricultural rain shelter can adapt to the shape of the crop planting plot and adjust the placement angle of each rain shelter unit to form a multi-section bending shape as a whole. Moreover, this rain shelter can realize the rolling and unfolding of the top rain shelter film. The rain shelter film is rolled up and unfolded along the width direction of the rain shelter, which takes less time and has high film rolling efficiency. Attached image description:

[0014] Figure 1 This is a front view of the bracket;

[0015] Figure 2 This is a top view of the present invention;

[0016] Figure 3 This is a schematic diagram of a single-sided rain shelter unit structure;

[0017] Figure 4 This is a schematic diagram of the installation structure of the first take-up reel, the second take-up reel, and the support reel on the movable rod.

[0018] The markings in the diagram are: 1-rainproof film, 2-movable rod, 3-bracket, 4-limiting frame, 5-first longitudinal beam, 6-second longitudinal beam, 7-first take-up reel, 8-second take-up reel, 9-first cable, 10-second cable, 11-telescopic universal joint, 12-guide rail, 13-gear motor, 14-mounting base, 15-support wheel, 16-limiting groove, 17-bolt, 18-vertical rod, 19-upright rod, 20-upper rod, 21-lower rod, 22-diagonal brace, 23-horizontal bar. Detailed Implementation

[0019] The present invention will now be described in detail with reference to the accompanying drawings.

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0021] This embodiment provides an agricultural rain shelter, such as Figures 1-4 As shown, the system includes several rain shelter units connected in sequence. Each rain shelter unit includes a rain shelter film 1, a movable rod 2, and two spaced-apart supports 3. A long, rectangular "U"-shaped limiting frame 4 is formed at the top of each support 3. A first longitudinal beam 5 connects one end of the limiting frames 4 of the two supports 3, and a second longitudinal beam 6 connects the other end. The movable rod 2 passes through the two limiting frames 4, and a first take-up reel 7 and a second take-up reel 8 are fixedly installed at both ends of the movable rod 2. The limiting frame 4 is confined between the first take-up reel 7 and the second take-up reel 8. A first cable 9 and a second cable 10 are wound around the first take-up reel 7 and the second take-up reel 8, respectively. The winding directions of the cables 10 are opposite; the two ends of the first cable 9 are respectively fixed to the first take-up reel 7 and the first longitudinal beam 5, and the two ends of the second cable 10 are respectively fixed to the second take-up reel 8 and the second longitudinal beam 6; one end of the rainproof membrane 1 is fixed to the movable rod 2, and the other end is fixed to the first longitudinal beam 5 or the second longitudinal beam 6; the movable rods 2 of any two adjacent rainproof canopy units are connected by a telescopic universal joint 11; both the first cable 9 and the second cable 10 are steel wires; the portion of the first cable 9 located between the first take-up reel 7 and the first longitudinal beam 5 is perpendicular to the first longitudinal beam 5, and the portion of the second cable 10 located between the second take-up reel 8 and the second longitudinal beam 6 is perpendicular to the second longitudinal beam 6;

[0022] One end of the rain-shielding film 1 of all rain-shielding units is fixed to the movable rod 2 inside each unit. The other end of the rain-shielding film 1 of all rain-shielding units is either fixed to the first longitudinal beam 5 or fixed to the second longitudinal beam 6. It is not allowed to be partially fixed to the first longitudinal beam 5 and the rest fixed to the second longitudinal beam 6; thus ensuring that the rain-shielding film 1 of all rain-shielding film units can be unfolded or rolled up at the same time.

[0023] The rain shelter unit has at least two units, connected in pairs by a telescopic universal joint 11 between the movable rods 2; the overall structure of the rain shelter formed by connecting multiple rain shelter units in sequence can be C-shaped, S-shaped, etc., adaptable to various shapes of crop plots; in this embodiment, such as Figure 2 As shown, it includes two rain shelters. One can imagine that when the rain shelter has three or more rain shelter units, it only needs to be... Figure 2The right side of the rain shelter unit on the right side in the middle can continue to be connected by the retractable universal wheel 11; the retractable universal wheel 11 is a conventional structure, and its specific structure will not be elaborated here;

[0024] A guide rail 12 is connected between the ends of the first longitudinal beam 5 and the second longitudinal beam 6 on the rain shelter unit at the end. The length direction of the guide rail 12 is parallel to the length direction of the limit frame 4; a deceleration motor 13 is also provided on the rain shelter unit at the end. An installation seat 14 is fixed on the outer shell of the deceleration motor 13, and the installation seat 14 is slidably installed on the guide rail 12. The output shaft of the deceleration motor 13 is connected to the end of the movable rod 2;

[0025] The support 3 can be a flat top shape, only including a horizontally arranged limit frame 4. At this time, the upper top rod 20 and the lower top rod 21 are horizontally arranged; in this embodiment, in order for the support 3 to have a better stress effect, any support 3 is a pointed top shape, which includes two inclined limit frames 4. The two limit frames 4 are symmetrically arranged and connected to each other, forming an overall Λ-shaped structure; the support 3 includes two vertical rods 18, a cross rod 23, a vertical rod 19, two upper top rods 20, two lower top rods 21 and several diagonal braces 22. The two ends of the cross rod 23 are respectively fixed to the tops of the two vertical rods 18, the bottom of the vertical rod 19 is fixed to the midpoint of the cross rod 23, an upper top rod 20 and a lower top rod 21 are arranged in parallel, and both ends of them are respectively fixed to the top of a vertical rod 18 and the top of the vertical rod 19; the other upper top rod 20 and the other lower top rod 21 are arranged in parallel, and both ends of them are respectively fixed to the top of the other vertical rod 18 and the top of the vertical rod 19; several diagonal braces 22 are connected between the cross rod 23 and the lower top rod 21 to increase the structural strength; the tops of the vertical rods 18, the top of the vertical rod 19, the upper top rods 20 and the lower top rods 21 enclose a "mouth" - shaped limit frame 4;

[0026] On both sides of the top of any rain shelter unit, there is a movable rod 2 and a rain shelter film 1 respectively, and a deceleration motor 13 is provided on each side for independent control of the retraction and extension of the rain shelter film 1 on both sides;

[0027] Any rain shelter unit includes two first longitudinal beams 5 respectively located on both sides of the top and a second longitudinal beam 6 located in the middle of the top;

[0028] The limit frame 4 includes an upper top rod 20 and a lower top rod 21; a support wheel 15 is provided between the first wire reel 7 and the second wire reel 8. The support wheel 15 is rotatably installed on the movable rod 2; an annular limit groove 16 is formed in the circumferential direction of the support wheel 15, and part of the upper top rod 20 and the lower top rod 21 are embedded in the limit groove 16;

[0029] Bolts 17 are fixed on both the first take-up reel 7 and the second take-up reel 8; one end of the first cable 9 is tied to the bolt 17 of the first take-up reel 7, and the other end is tied to the first longitudinal beam 5; one end of the second cable 10 is tied to the bolt 17 of the second take-up reel 8, and the other end is tied to the second longitudinal beam 6.

[0030] In this utility model employing the aforementioned technical solution, when the movable rod 2 of any rain shelter unit is rotated, the movable rod 2 drives the first take-up reel 7 and the second take-up reel 8 to rotate synchronously and in the same direction. Since the winding direction of the first cable 9 on the first take-up reel 7 and the winding direction of the second cable 10 on the second take-up reel 8 are opposite, one of the first take-up reel 7 and the second take-up reel 8 must be taking in the cable, and the other take-up reel is releasing the cable. As the take-up reel takes in the cable, the release reel releases the cable, and the movable rod 2 will roll forward within the limiting frame 4. When the movable rod 2 is rotated in the opposite direction, the previously take-up reel becomes the release reel, and the previously release take-up reel becomes the take-up reel, and the movable rod 2 will roll forward in the opposite direction within the limiting frame 4. This achieves the unfolding and rewinding of the rain shelter film 1 on the movable rod 2. Furthermore, since the movable rods 2 of adjacent rain shelter film units are connected by a telescopic universal joint 11, when the phases are... Even when adjacent rain-shielding film units are arranged at an angle, the transmission connection between the movable rods 2 can still be achieved. That is, only one movable rod 2 needs to be driven to rotate to drive the rain-shielding film 1 of all rain-shielding units to retract and unfold. At this time, the entire rain-shielding canopy forms a multi-section structure composed of several rain-shielding canopy units connected in sequence, similar to the connection structure of each carriage of a train. The rain-shielding canopy of this structure can adaptively adjust the placement angle of each rain-shielding canopy unit according to the shape of the crop planting plot, forming a multi-section bent shape as a whole. Compared with the existing film-retracting structure, which is only suitable for retracting the film of a long and straight rain-shielding canopy, and which cannot be used when the rain-shielding canopy needs to be set into a bent shape to adapt to the shape of the crop planting plot, the agricultural rain-shielding canopy of this utility model can adaptively adjust the placement angle of each rain-shielding canopy unit according to the shape of the crop planting plot, forming a multi-section bent shape as a whole. Moreover, this rain-shielding canopy can realize the rolling up and unfolding of the top rain-shielding film.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An agricultural rain shelter, characterized in that: The system comprises several rain shelter units connected in sequence. Each rain shelter unit includes a rain shelter film (1), a movable rod (2), and two spaced-apart supports (3). The top of each support (3) forms a long, rectangular "U"-shaped limiting frame (4). A first longitudinal beam (5) is connected between one end of the limiting frames (4) of the two supports (3), and a second longitudinal beam (6) is connected between the other ends. The movable rod (2) passes through the two limiting frames (4). A first take-up reel (7) and a second take-up reel (8) are fixedly installed at both ends of the movable rod (2). The limiting frame (4) is restricted between the first take-up reel (7) and the second take-up reel (8). A first cable (9) and a second cable (10) are wound on a first take-up reel (7) and a second take-up reel (8), respectively, and the first cable (9) and the second cable (10) are wound in opposite directions; the two ends of the first cable (9) are fixed on the first take-up reel (7) and the first longitudinal beam (5), respectively, and the two ends of the second cable (10) are fixed on the second take-up reel (8) and the second longitudinal beam (6), respectively; one end of the rainproof membrane (1) is fixed on the movable rod (2), and the other end is fixed on the first longitudinal beam (5) or the second longitudinal beam (6); the movable rods (2) of any two adjacent rainproof canopy units are connected by a telescopic universal joint (11).

2. The agricultural rain shelter according to claim 1, characterized in that: A guide rail (12) is connected between the ends of the first longitudinal beam (5) and the second longitudinal beam (6) on the end of the rain shelter unit. The length direction of the guide rail (12) is parallel to the length direction of the limiting frame (4). A reduction motor (13) is also provided on the end of the rain shelter unit. A mounting seat (14) is fixed on the housing of the reduction motor (13). The mounting seat (14) is slidably mounted on the guide rail (12). The output shaft of the reduction motor (13) is connected to the end of the movable rod (2).

3. The agricultural rain shelter according to claim 1, characterized in that: Each of the brackets (3) is pointed and includes two inclined limiting frames (4). The two limiting frames (4) are symmetrically arranged and connected to each other to form a Λ-shaped structure.

4. The agricultural rain shelter according to claim 3, characterized in that: Each of the aforementioned rain shelter units includes two first longitudinal beams (5) located on the two sides of the top and a second longitudinal beam (6) located in the middle of the top.

5. The agricultural rain shelter according to claim 1, characterized in that: The limiting frame (4) includes an upper push rod (20) and a lower push rod (21); a support wheel (15) is provided between the first take-up reel (7) and the second take-up reel (8), and the support wheel (15) is rotatably mounted on the movable rod (2); the support wheel (15) has an annular limiting groove (16) formed in the circumferential direction, and the upper push rod (20) and the lower push rod (21) are partially embedded in the limiting groove (16).

6. The agricultural rain shelter according to claim 1, characterized in that: Bolts (17) are fixed on both the first take-up reel (7) and the second take-up reel (8). One end of the first cable (9) is tied to the bolt (17) of the first take-up reel (7), and one end of the second cable (10) is tied to the bolt (17) of the second take-up reel (8).

7. The agricultural rain shelter according to claim 1, characterized in that: Both the first cable (9) and the second cable (10) are steel wires.

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