Greenhouse film traction device

Abstract

The utility model provides a greenhouse film traction device which comprises a greenhouse. The traction frame is erected on a thin film traction assembly outside the greenhouse, and the thin film traction assembly comprises a moving frame, a driving mechanism for driving the moving frame to move, a clamping traction mechanism for clamping and pulling one end of a thin film and a supporting mechanism for vertically placing a thin film coiled material; the moving frame is movably arranged on the traction frame through the driving mechanism, the clamping traction mechanism comprises a power source, a traction block and clamping blocks arranged in pairs, the traction block is fixedly installed on the power source, and an installation hole is formed in the traction block. The clamping block is provided with a clamping end used for clamping one end of a thin film and a mounting end used for being mounted in the mounting hole of the traction block, and the mounting end is inserted into the mounting hole after the thin film is clamped. The upper end of a greenhouse can be efficiently covered with a film through the film traction device, efficiency is improved, and the labor amount is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of agricultural planting equipment technology, and in particular relates to a greenhouse film traction device. Background Technology

[0002] Using plastic film to cover crops in greenhouses creates a suitable ecological environment, reduces pests and diseases, regulates temperature and humidity, and promotes high-quality and high-yield crops, making it an effective way to increase farmers' income.

[0003] Greenhouses are generally constructed using materials such as bamboo and wood poles, cement poles, lightweight steel pipes, or tubing to form a frame, which includes columns, tie rods, arches, and compression rods. They are then covered with plastic film to form an arched plastic greenhouse. The structure is simple, the cost is low, and it can provide a certain degree of cold protection and warmth.

[0004] However, during the process of covering greenhouses with plastic film, sometimes due to the height of the greenhouse and the soft nature of the plastic film, the process of covering the top part becomes extremely cumbersome, time-consuming, and inefficient. Especially in windy weather, covering the film often requires more labor and poses certain dangers.

[0005] Therefore, the above problems need to be solved. Utility Model Content

[0006] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a greenhouse film traction device to solve the technical problem that, due to the flexible nature of plastic film, it is difficult to cover the top of the greenhouse when it is too high, making the film covering process extremely cumbersome, inefficient, and a waste of labor.

[0007] To achieve the above and other related objectives, this utility model provides a greenhouse film traction device, including...

[0008] Sheds;

[0009] A traction frame, which is erected outside the shed;

[0010] A film traction assembly, comprising a movable frame, a drive mechanism for moving the movable frame, and a mechanism for...

[0011] The device includes a clamping and traction mechanism for clamping and pulling one end of a film and a support mechanism for vertically placing the film roll. The moving frame is movably mounted on the traction frame via the driving mechanism. The clamping and traction mechanism includes a power source, a traction block, and a pair of clamping blocks. The traction block is fixedly mounted on the power source and has a mounting hole. The clamping block has a clamping end for clamping one end of the film and a mounting end for mounting in the mounting hole of the traction block. After the film is clamped, the mounting end is inserted into the mounting hole. The moving direction of the moving frame is perpendicular to the moving direction of the clamping block.

[0012] In this way, the film is placed on the support mechanism, and after one end of the film is clamped by the clamping block, the film is moved along the length of the greenhouse by the power source. After the movement is completed, the film is moved along the width of the greenhouse by the drive mechanism, thereby moving the film to the top of the greenhouse.

[0013] Preferably, the movable frame has a slide groove with a T-shaped cross-section. The power source includes a first motor, a belt, and a set of synchronous pulleys. The belt passes through the slide groove in a loop through the synchronous pulleys, then over the movable frame and into the slide groove. The traction block is disposed in the slide groove and fixedly connected to the belt. The first motor is fixedly mounted above the movable frame and engages with the belt through the synchronous pulleys. Using a motor and belt makes the traction block more stable during movement and allows it to travel a longer distance.

[0014] Preferably, the drive mechanism includes a connecting seat, a roller, a second motor, and a lead screw. The second motor is fixedly mounted on the traction frame, and the lead screw is rotatably mounted on the traction frame. The connecting seat has a threaded hole and is screwed onto the lead screw through the threaded hole. The lower end of the connecting seat is fixedly mounted on the upper end of the movable frame. The roller is rotatably mounted in the connecting seat and rolls with the upper end of the traction frame. The output end of the second motor is connected to one end of the lead screw.

[0015] Preferably, a track is horizontally arranged above the traction frame along the width of the shed. A limiting platform is located in the middle of the track. Each track has a roller and a connecting seat that are rolled on it, and the roller has a recess that mates with the limiting platform of the track. The roller and limiting platform allow the roller to move in a straight line during rolling, making the movement of the connecting seat more stable.

[0016] Preferably, an auxiliary mechanism for assisting in clamping the film is provided below the movable frame. The auxiliary mechanism is linearly arranged on the movable frame and includes symmetrically arranged supports, clamping wheels, and elastic elements. The supports are symmetrically installed below the movable frame, and the clamping wheels are rotatably mounted on adjacent sides of the supports via the elastic elements. The symmetrical clamping wheels abut against each other, and the clamping wheels are located below the clamping block. Using this auxiliary mechanism, the film can be clamped during traction, preventing the middle section of the film from falling downwards due to its own weight.

[0017] Preferably, the traction block has a mounting hole, and a universal ball bearing that provides auxiliary support to the traction block is installed in the mounting hole. The universal ball bearing is rolled within a groove. The universal ball bearing can support the traction block without affecting its movement.

[0018] Preferably, the surfaces of the clamping ends that are in contact with each other are clamping surfaces and have interlocking teeth. These interlocking teeth can firmly clamp the film, preventing it from falling off during traction.

[0019] Preferably, the top of the greenhouse is arc-shaped, and rolling tubes are rotatably arranged between the frames. The rolling tubes are evenly distributed on the top of the greenhouse, and the tangent of the surface of the rolling tube is higher than the tangent of the top of the greenhouse. By using the rolling tubes, the friction between the film and the greenhouse is reduced when the film is pulled in the width direction, which is more labor-saving and can prevent the film from being torn.

[0020] The beneficial effects of this utility model are as follows:

[0021] When using this invention, the film is placed on the support mechanism. After one end of the film is clamped by the clamping block, the film is moved along the length of the greenhouse by a power source. After the movement is completed, the film is moved along the width of the greenhouse by a drive mechanism, thereby moving the film to the top of the greenhouse. This makes the greenhouse covering process more convenient and faster, reduces the workload of workers, and reduces damage to the film during the covering process. Attached Figure Description

[0022] Figure 1 The diagram shown is a schematic representation of the overall structure of this utility model.

[0023] Figure 2 The diagram shown is a partial structural schematic of the thin-film traction assembly.

[0024] Figure 3 The diagram shown is a partial structural schematic of the drive mechanism.

[0025] Figure 4 The diagram shows the installation structure of the connector and the movable frame.

[0026] Figure 5 The diagram shows the structure of the clamping block and the traction block. Detailed Implementation

[0027] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0028] Please see Figures 1 to 5 It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and are not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0029] like Figure 1-5 As shown, a greenhouse film traction device includes: a greenhouse chamber 1, a traction frame 2, and a film traction assembly 3. The traction frame 2 is installed outside the greenhouse chamber 1. The greenhouse chamber 1 is framed by a circular or square lightweight steel pipe or tubing, etc., with an arc-shaped top. Rotatable rolling tubes 101 are installed between the frames. The tangent of the outer surface of the rolling tubes 101 is higher than the tangent of the arc at the top of the greenhouse chamber. This reduces friction between the film and the frame when the film is pulled in the width direction, making it more labor-saving and preventing the film from being torn.

[0030] In this embodiment, the film traction assembly 3 includes a movable frame 310, a driving mechanism 320 for moving the movable frame 310, and a clamping and traction mechanism 330 for clamping and tractioning one end of the film. The movable frame 310 is movably mounted on the traction frame 2 via the driving mechanism 320. The movable frame 310 has a slide groove 311 with a T-shaped cross-section.

[0031] Specifically, the clamping and traction mechanism 330 drives the film to move along the length of the greenhouse 1. It includes a traction block 331, a clamping block 332, a first motor 333, a first belt 334, and several first synchronous pulleys 335. The first synchronous pulleys 335 are rotatably mounted on the moving frame 310 through the mounting support 337, and can make the first belt 334 tensioned on the first synchronous pulleys 335. The first belt 334 is arranged in a vertically rotating ring shape, and its lower part is rotatably arranged in the slide groove 311 of the moving frame 310. The first motor 333 is fixedly mounted on the movable frame 310. A second synchronous pulley 338 and a second belt 339 are provided between the first motor 333 and the first synchronous pulley 335. The rotation of the first motor 333 drives the second belt 339 to rotate, thereby driving the first synchronous pulley 335 to rotate. The rotation of the first synchronous pulley 335 drives the first belt 334 to rotate. The traction block 331 is located in the slide groove 311 and is fixedly connected to the first belt 334. During the rotation of the first belt 334, the traction block 331 moves. The traction block 331 is square with mounting holes 340. The clamping blocks 332 are arranged in pairs and have one end for clamping the film. The clamping end 341 and the mounting end 342 for mounting in the mounting hole 340 of the traction block 331 are provided. The side of the clamping end that is in contact with the traction block 331 has a number of interlocking teeth that can clamp the film. The mounting end after clamping the film is square and can be inserted into the mounting hole of the traction block 331. The square mounting hole can prevent the film from shifting due to the rotation of the clamping block 332 during the pulling of the film. The traction block 331 has a mounting hole in which a universal ball bearing 312 is installed. The universal ball bearing 312 rolls in the slide groove 311 and can play an auxiliary support role during the movement of the traction block 331.

[0032] In this embodiment, in order to reduce the influence of the film's own weight on the traction process, an auxiliary mechanism 4 is also provided to assist in clamping the upper end of the film. The auxiliary mechanism 4 is linearly arranged below the movable frame 310 and includes a pair of symmetrically arranged brackets 410, clamping wheels 411, springs 412 and telescopic rods 413. The brackets 410 are vertically installed below the movable frame 310, and the telescopic rods 413 are horizontally arranged. One end is installed at the lower end of the brackets 410, and the other end is connected to the clamping wheels 411. The springs 412 are sleeved on the outside of the telescopic rods, and both ends abut against the brackets 410 and the clamping wheels 411. The two clamping wheels 411 abut against each other under the action of the springs 412 and the telescopic rods 413, and their height is lower than that of the clamping block 332. After the film is pulled by the traction block 331, it passes over the clamping wheels 411. Through the action of the springs 412 and the telescopic rods 413, the film is clamped between the clamping wheels 411.

[0033] In this embodiment, three tracks 321 are horizontally arranged above the traction frame 2 in the width direction of the greenhouse 1. The movable frame is set below the tracks by a drive assembly 320. The drive assembly 320 drives the movable frame 310 to move in the width direction of the greenhouse 1. The drive assembly 320 includes a connecting seat 322, rollers 323, a second motor 324, and a lead screw 325. The connecting seat 322 and the tracks 321 are arranged in pairs. The movable frame 310 is fixedly installed below the connecting seat 322. There is a channel 326 between the connecting seat 322 and the movable frame 310 in the same direction as the width of the greenhouse 1. The track 321 passes through the channel 326. The rollers 323 are rotatably mounted on the connecting seat 322 and located in the channel 326. The spacer has an arc-shaped limiting platform 327, and a roller 323 has a recess that mates with the limiting platform 327. When the roller 323 rolls on the track 321, it moves linearly along the limiting platform 327. The lead screw 325 is horizontally rotatably mounted on the traction frame 2 via two mounting blocks 328. The direction of the axis of the lead screw 325 is the same as the width direction of the shed 1. One of the connecting seats 322 has a threaded hole and is screwed onto the lead screw 325 through the threaded hole. The rotation of the lead screw 325 causes the connecting seat 322 to move. The second motor 324 is fixedly mounted on the traction frame 2. The output end of the second motor 324 has a gear 329 that meshes with one end of the lead screw 325. The second motor 324 drives the lead screw to rotate through the gear 328.

[0034] Working principle:

[0035] After one end of the film passes through the first pair of clamping wheels, the upper end of the film is clamped by a clamping block. After clamping, the clamping block is installed on the traction block. Then, the first motor is started, which drives the belt to move backward, thereby moving the traction block in the slide groove of the moving frame. During the movement, the upper end of the film is clamped by the clamping wheels set on the moving frame in sequence. After the traction block reaches the designated position on the rear side, the film is cut at the initial position on the front side. The second motor is started, which drives the lead screw to rotate, thereby driving the connecting seat to move to the left on the lead screw. The movement of the connecting seat drives the moving frame to move to the left side of the greenhouse, thus reaching the top of the greenhouse. At this time, the film on the right side adheres to the greenhouse due to its own weight. Then, the lower end of the film on the right side is pressed and clamped onto the greenhouse in sequence by the film pressing clamp (the film pressing frame is the existing one). After the pressing and clamping is completed, the film on the left side is removed from the clamping block and clamping wheels. Since the film on the right side is already fixed, the film on the left side can also be fixed more quickly.

[0036] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A greenhouse film pulling device, the pulling device being provided above a house, characterized in that, The utility model relates to a kind of thin film traction device for greenhouse, including: Traction frame, which is erected outside the greenhouse; Film traction assembly, which includes moving frame, driving mechanism for driving the moving frame to move, for Clamping and traction mechanism for clamping one end of the film and traction, and support mechanism for vertically placing the film roll, the moving frame is movably provided on the traction frame by the driving mechanism, the clamping and traction mechanism includes power source, traction block and a pair of clamping blocks, the traction block is fixedly installed on the power source, and the traction block is provided with mounting hole, the clamping block has clamping end for clamping one end of the film and mounting end for mounting in the mounting hole of the traction block, the mounting end is inserted in the mounting hole after clamping the film, and the moving direction of the moving frame and the moving direction of the clamping block are perpendicular.

2. The greenhouse film pulling device according to claim 1, characterized in that: The moving frame has a T-shaped cross-section, the power source includes a first motor, a belt and a synchronous wheel set, the belt is arranged in a loop shape through the sliding groove, passes above the moving frame and is placed in the sliding groove again, the traction block is arranged in the sliding groove and is fixedly connected with the belt, and the first motor is fixedly installed above the moving frame.

3. The greenhouse film pulling device according to claim 2, characterized in that: The driving mechanism includes a connecting seat, a roller, a second motor and a lead screw, the second motor is fixedly installed on the traction frame, the lead screw is rotatably installed on the traction frame, the connecting seat has a threaded hole and is screwed on the lead screw through the threaded hole, the lower end of the connecting seat is fixedly installed on the upper end of the moving frame, the roller is rotatably installed in the connecting seat and is in rolling engagement with the upper end of the traction frame, and the output end of the second motor is connected with one end of the lead screw.

4. The greenhouse film pulling device according to claim 3, characterized in that: Rails are horizontally arranged above the traction frame along the width direction of the greenhouse, the rails have limiting tables in the middle, the rollers and the connecting seats are rollingly arranged on each rail, and the rollers have recesses matched with the limiting tables of the rails.

5. The greenhouse film pulling device according to any one of claims 1-4, characterized in that: An auxiliary mechanism for assisting in clamping the film is arranged below the moving frame, the auxiliary mechanism is linearly arranged on the moving frame and includes symmetrically arranged supports, clamping wheels and elastic members, the supports are symmetrically installed below the moving frame, the clamping wheels are rotatably installed on the proximal side of the supports through the elastic members, the symmetrically arranged clamping wheels abut each other, and the clamping wheels are below the clamping blocks.

6. The greenhouse film pulling device according to claim 1, characterized in that: The traction block has a mounting hole, universal ball bearings for assisting in supporting the traction block are installed in the mounting hole, and the universal ball bearings are rollingly arranged in the sliding groove.

7. The greenhouse film pulling device according to claim 1, characterized in that: The clamping end abutting each other is a clamping surface, and has interlocking teeth.

8. The greenhouse film pulling device according to claim 1, characterized in that: The top of the greenhouse is arc-shaped, and rolling tubes are rotatably arranged between the frames, the rolling tubes are uniformly arranged on the top of the greenhouse, and the tangent line of the surface of the rolling tube is higher than the tangent line of the arc-shaped top of the greenhouse.

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