Agricultural greenhouse film covering device

Abstract

The utility model belongs to the technical field of agricultural greenhouses, and particularly relates to an agricultural greenhouse film covering device which comprises a base and a square table, the square table is fixedly installed on the upper side of the base, a square groove is formed in the lower side of the square table, supporting plates are symmetrically arranged on the left side and the right side in the square groove, and a winding drum is rotationally assembled between the two supporting plates. Rotating shafts in transmission connection with the two winding drums are rotationally assembled on the two supporting plates, first gears are fixedly arranged at the left ends, extending out of the supporting plates, of the two rotating shafts, second gears meshed with the two first gears are rotationally assembled on the left supporting plate, and a motor for controlling the second gears is installed on the left side of the left supporting plate; the motor drives the second gear to rotate, the second gear synchronously drives the two first gears to rotate, the two first gears synchronously drive the two winding drums to rotate, the winding drums wind or unwind the film, operation is convenient, the film does not need to be manually wound, the labor intensity of a user is reduced, and the time of the user is saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of agricultural greenhouses, and in particular relates to a film covering device for an agricultural greenhouse. Background Art

[0002] The greenhouse area in China has basically stabilized at more than 100,000 mu. Among them, there are about 70,000 mu in the provinces and cities in the arid areas of northern my country. The material used to cover the greenhouse is plastic film. It is suitable for covering large areas because it is light, has good light transmission and heat preservation properties, is highly plastic and inexpensive. It can also resist natural disasters, prevent cold and keep warm, resist drought and waterlogging, plant crops earlier, delay planting, and extend the growing period of crops, achieving the goals of early maturity, late maturity, increased and stable production, and is very popular among producers.

[0003] In agricultural planting, the use of greenhouses is quite common. Since greenhouses are wide and long, it is time-consuming and labor-intensive to manually build greenhouse films, which seriously affects the widespread construction of greenhouses. In addition, when the greenhouse film needs to be opened for ventilation during use, manual operation is required, which is time-consuming and labor-intensive. Therefore, an agricultural greenhouse film covering device is needed to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide an agricultural greenhouse film covering device, in which a second gear is driven by a motor to rotate, the second gear synchronously drives two first gears to rotate, the two first gears synchronously drive two winding drums to rotate, and the winding drums wind up or unfold the film, which is easy to operate and does not require manual winding of the film, thereby reducing the labor intensity of the user and saving the user's time.

[0005] In order to achieve the above technical purpose, the technical solution adopted by the utility model is as follows:

[0006] A film covering device for an agricultural greenhouse comprises a base and a square platform, wherein the square platform is fixedly mounted on the upper side of the base, a square groove is formed on the lower side of the square platform, support plates are symmetrically arranged on the left and right sides of the square groove, a winding drum is rotatably mounted between the two support plates, both support plates are rotatably mounted with a rotating shaft transmission-connected to the two winding drums, the left ends of the two rotating shafts extending out of the support plates are fixedly provided with a first gear, the left support plate is rotatably mounted with a second gear meshing with the two first gears, a motor is mounted on the left side of the left support plate, and the output shaft of the motor is transmission-connected to the second gear.

[0007] A bidirectional screw is rotatably mounted in the square groove, the bidirectional screw is located between the two winding drums, the two support plates are threadedly connected to the bidirectional screw, a round rod is rotatably mounted in the square groove, the two support plates are provided with round holes matching the round rod, two wire wheels are concentrically fixed on the left and right sides of the round rod, the four wire wheels are all wrapped with pull ropes, circular rings are rotatably mounted on the left and right sides of the two winding drums, and the other ends of the four pull ropes are respectively fixedly connected to the four circular rings.

[0008] A round shaft is fixedly provided on the left side of the bidirectional screw rod, the round shaft sleeve is provided with a third gear, a fourth gear meshing with the third gear is concentrically fixedly provided on the left side of the round rod, a plurality of circumferentially distributed grooves are provided on the left side of the round shaft, and a plurality of blocks matching the grooves are fixedly provided inside the third gear.

[0009] A cylinder matching the circular shaft is fixedly arranged on the left side of the third gear, and a hand wheel is fixedly arranged on the left side of the cylinder.

[0010] The upper side of the square platform is opened in an arc shape.

[0011] The second gear is driven by a motor to rotate, and the second gear synchronously drives the two first gears to rotate, and the two first gears synchronously drive the two winding drums to rotate, and the winding drums wind or unfold the film, which is easy to operate and does not require manual winding of the film, thereby reducing the labor intensity of the user and saving the user's time. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention can be further described by the non-limiting embodiments given in the accompanying drawings.

[0013] Figure 1 This is a structural schematic diagram of an agricultural greenhouse film covering device embodiment of the utility model;

[0014] Figure 2 This is a schematic diagram of the cross-sectional structure of an agricultural greenhouse film covering device embodiment of the utility model Figure 1 ;

[0015] Figure 3 for Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0016] Figure 4 for Figure 2 A schematic diagram of the enlarged structure at B in the middle;

[0017] Figure 5 This is a schematic diagram of the cross-sectional structure of an agricultural greenhouse film covering device embodiment of the utility model Figure 2 ;

[0018] Figure 6 for Figure 5Schematic diagram of the enlarged structure at C in the middle;

[0019] Figure 7 This is a schematic diagram of the cross-sectional structure of an agricultural greenhouse film covering device embodiment of the utility model Figure 3 .

[0020] The main component symbols are described as follows:

[0021] Base 1, square table 10, square groove 11, support plate 12, winding drum 13, rotating shaft 14, first gear 15, second gear 16, motor 17, bidirectional screw 20, round rod 21, wire wheel 22, pull rope 23, ring 24, round shaft 30, third gear 31, fourth gear 32, slot 32, block 33, cylinder 34, hand wheel 40. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0023] like Figure 1-7 As shown, an agricultural greenhouse film covering device of the utility model comprises a base 1 and a square platform 10, wherein the square platform 10 is fixedly mounted on the upper side of the base 1, a square groove 11 is provided on the lower side of the square platform 10, and support plates 12 are symmetrically provided on the left and right sides of the square groove 11, a winding drum 13 is rotatably mounted between the two support plates 12, and the two support plates 12 are both rotatably mounted with a rotating shaft 14 which is transmission-connected with the two winding drums 13, and the left ends of the two rotating shafts 14 extending out of the support plates 12 are both fixedly provided with a first gear 15, the left support plate 12 is rotatably mounted with a second gear 16 which is meshed with the two first gears 15, and a motor 17 is installed on the left side of the left support plate 12, and the output shaft of the motor 17 is transmission-connected with the second gear 16;

[0024] When the utility model is used to unfold the film, the user installs the base 1 on the upper side of the greenhouse, and turns on the motor 17. The output shaft of the motor 17 starts to rotate, and the output shaft of the motor 17 drives the second gear 16 to rotate. The second gear 16 synchronously drives the two first gears 15 to rotate. The two first gears 15 synchronously drive the two winding drums 13 to rotate through the rotating shaft 14. The two winding drums 13 release the wound film, and the films on both sides are released synchronously, which improves the efficiency of film covering.

[0025] Furthermore, the user can adjust the degree of coverage of the greenhouse by the film by controlling the rotation time of the motor 17, so as to facilitate ventilation inside the greenhouse;

[0026] The second gear is driven by a motor to rotate, and the second gear synchronously drives the two first gears to rotate, and the two first gears synchronously drive the two winding drums to rotate, and the winding drums wind or unfold the film, which is easy to operate and does not require manual winding of the film, thereby reducing the labor intensity of the user and saving the user's time.

[0027] A bidirectional screw 20 is rotatably mounted in the square groove 11, and the bidirectional screw 20 is located between the two winding drums 13. The two support plates 12 are threadedly connected to the bidirectional screw 20. A round rod 21 is rotatably mounted in the square groove 11, and the two support plates 12 are provided with round holes matching the round rod 21. Two wire wheels 22 are concentrically fixed on the left and right sides of the round rod 21, and the four wire wheels 22 are all wound with pull ropes 23. Rings 24 are rotatably mounted on the left and right sides of the two winding drums 13, and the other ends of the four pull ropes 23 are respectively fixedly connected to the four rings 24;

[0028] After the film wound on the take-up drum 13 has been used for a long time and needs to be replaced, the user first starts the motor 17, and the motor 17 drives the two take-up drums 13 to rotate, and the two take-up drums 13 wind up the film. The user stops the operation of the motor 17 and then rotates the bidirectional screw 20, and the bidirectional screw 20 drives the two support plates 12 to move synchronously to the left and right sides, so that the support plates 12 synchronously drive the rotating shaft 14 to move to both sides, and the support plate 12 on the left side synchronously pushes the first gear 15, the second gear 16 and the motor 17 to move to the left side, and the user then directly rotates the round rod 21, and the round rod 21 synchronously drives the four wire wheels 22 to rotate, so that the pull ropes 23 wound around the four wire wheels 22 are stretched, and the take-up drums 13 on both sides simultaneously move along the greenhouse to the bottom. The film is moved in a row, and after the two winding drums 13 move to the bottom of the greenhouse, the user takes out the rings 24 on both sides of the winding drum 13 from both sides, then takes the old film off the winding drum 13, puts the new film set on the winding drum 13, and then installs the rings 24 on both sides on the left and right sides of the winding drum 13. The user then rotates the round rod 21, and the round rod 21 drives the four wire wheels 22 to rotate. The four wire wheels 22 simultaneously reel in the pull rope 23, pulling the winding drums 13 on both sides to move upward synchronously. After the winding drums 13 on both sides move to the position at the same time, the user rotates the bidirectional screw 20 again to make the rotating shafts 14 on both sides of the support plate 12 connected to the winding drum 13 for transmission. The film replacement is more convenient, reduces the labor intensity of the user, and improves the film replacement efficiency.

[0029] A round shaft 30 is fixedly provided on the left side of the bidirectional screw 20, and a third gear 31 is sleeved on the round shaft 31. A fourth gear 32 meshing with the third gear 31 is concentrically fixed on the left side of the round rod 21. A plurality of circumferentially distributed card slots 32 are provided on the left side of the round shaft 30. A plurality of card blocks 33 matching the card slots 32 are fixedly provided inside the third gear 30. A cylinder 34 matching the round shaft 31 is fixedly provided on the left side of the third gear 31.

[0030] When the user changes the film, the user pulls the cylinder 34 to the far left, driving the block 33 inside the third gear 31 to correspond to the slot 32 on the side wall of the circular shaft 31, and the user rotates the cylinder 34 again, and the cylinder 34 drives the bidirectional screw 20 to rotate. After the rotating shafts 14 of the support plates 12 on both sides are separated from the winding cylinder 13, the user pushes the cylinder 34 to the right again, and the cylinder 34 drives the third gear 31 to move to the right on the circular shaft 31. After the third gear 31 is meshed with the fourth gear 32, the user rotates the cylinder 34 again, and the cylinder 34 drives the fourth gear 32 to rotate through the third gear 31, and the fourth gear 32 drives the circular rod 21 to rotate. The structure is simple and reasonable, and it is convenient for users to operate.

[0031] A hand wheel 40 is fixedly provided on the left side of the cylinder 34 , so that the user can rotate the cylinder 34 conveniently.

[0032] The upper side of the square platform 10 is opened in an arc shape to prevent the accumulation of dust, debris and snow, thereby ensuring the normal use of the greenhouse.

[0033] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the relevant technical field without departing from the spirit and technical ideas disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. An agricultural greenhouse film covering device, comprising a base and a square platform, characterized in that: The square table is fixedly mounted on the upper side of the base, a square groove is provided on the lower side of the square table, support plates are symmetrically provided on the left and right sides of the square groove, a winding drum is rotatably mounted between the two support plates, both support plates are rotatably mounted with a rotating shaft transmission connected to the two winding drums, the two rotating shafts extending out of the left ends of the support plates are fixedly provided with a first gear, the left support plate is rotatably mounted with a second gear meshing with the two first gears, a motor is installed on the left side of the left support plate, and the output shaft of the motor is transmission connected to the second gear.

2. The agricultural greenhouse film covering device according to claim 1, characterized in that: A bidirectional screw is rotatably mounted in the square groove, the bidirectional screw is located between the two winding drums, the two support plates are threadedly connected to the bidirectional screw, a round rod is rotatably mounted in the square groove, the two support plates are provided with round holes matching the round rod, two wire wheels are concentrically fixed on the left and right sides of the round rod, the four wire wheels are all wrapped with pull ropes, circular rings are rotatably mounted on the left and right sides of the two winding drums, and the other ends of the four pull ropes are respectively fixedly connected to the four circular rings.

3. The agricultural greenhouse film covering device according to claim 2, characterized in that: A round shaft is fixedly provided on the left side of the bidirectional screw rod, the round shaft sleeve is provided with a third gear, a fourth gear meshing with the third gear is concentrically fixedly provided on the left side of the round rod, a plurality of circumferentially distributed grooves are provided on the left side of the round shaft, and a plurality of blocks matching the grooves are fixedly provided inside the third gear.

4. The agricultural greenhouse film covering device according to claim 3, characterized in that: A cylinder matching the circular shaft is fixedly arranged on the left side of the third gear, and a hand wheel is fixedly arranged on the left side of the cylinder.

5. The agricultural greenhouse film covering device according to claim 1, characterized in that: The upper side of the square platform is opened in an arc shape.

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