A self-propelled greenhouse rolling curtain equipment

Abstract

The present invention relates to the technical field of agricultural greenhouse machinery, and specifically to a self-propelled greenhouse rolling curtain device, comprising a reel and a driving assembly; the reel has multiple sections, and one of every two adjacent reels close to the driving assembly is a driving shaft, and the other away from the driving assembly is a driven shaft, and the driven shaft is swingably mounted on the driving shaft along the traveling direction of the reel; a clutch mechanism is arranged between the driven shaft and the driving shaft; the clutch mechanism is suitable for closing when the driven shaft is coaxial with the driving shaft, so that the rotational torque on the driving shaft is transmitted to the driven shaft; the clutch mechanism is suitable for separating when the driven shaft deflects in the direction where the greenhouse covering is laid; a blocking member is arranged between the driving shaft and the driven shaft, and is suitable for preventing the driven shaft from deflecting in the direction where the greenhouse covering is not laid. The self-propelled greenhouse rolling curtain device provided by the present invention can effectively prevent the reel from running off in the process of winding the greenhouse covering, and has the advantage of stable walking posture.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural greenhouse machinery, and in particular to a self-propelled greenhouse rolling curtain device. Background Art

[0002] Greenhouse roller shutter machines are a type of equipment that has gradually emerged in recent years to realize automatic rolling shutters in greenhouses, replacing the original manual rolling shutter method. According to the different operation modes of the reel, it is generally divided into two types: self-propelled type and fixed type. As the name suggests, the self-propelled roller shutter machine for greenhouses automatically moves on the greenhouse surface. During the rotation of the reel, the straw mats, insulation felts, quilts and other covering parts laid on the greenhouse surface are rolled into a roll. As the covering parts roll, the reel is driven to move forward on the greenhouse surface.

[0003] See also Figure 1 The figure shows a schematic diagram of the structure of a common self-propelled rolling shutter device for a shed. This type of rolling shutter device usually includes a motor installed in the middle or at both ends of the reel. The motor drives the reel to roll through a reducer. The motor and the reducer are installed on a foldable rocker arm. The rocker arm is used to ensure that the motor does not move laterally while following the reel. Sometimes, due to the limitation of the use space, the rocker arm can also be replaced by a track that is assumed to be above the shed and parallel to the upper surface of the shed. The motor is installed on the track. Whether it is a track or a rocker arm, its function is the same, which is to prevent the motor from moving laterally.

[0004] However, this type of greenhouse rolling curtain equipment has a defect that is difficult to overcome when in use. As we all know, quilts, straw mats and other coverings are usually covered on the greenhouse one by one. When these coverings are rolled up by the drive of the reel, even if they are the same type of coverings, there will be differences in thickness, elasticity and other indicators between different individuals. These coverings with different indicators will apply different pulling forces to the reel when rolled up. Under the action of different pulling forces, the progress of the reel will be out of sync during the walking process, which will cause the reel to deviate. Summary of the invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the defect in the prior art that the self-propelled greenhouse roller shutter equipment is prone to deviate during use, and further to provide a self-propelled greenhouse roller shutter equipment that can overcome the above defect.

[0006] In order to solve the above technical problems, the technical solutions provided by the present invention are as follows:

[0007] A self-propelled greenhouse rolling curtain device, comprising:

[0008] A reel and a drive assembly, wherein the reel is mounted on an output shaft of the drive assembly, and the drive assembly is adapted to drive the reel to rotate;

[0009] The reel has multiple sections, and the one of every two adjacent reels that is close to the driving assembly is a driving shaft, and the one that is far from the driving assembly is a driven shaft, and the driven shaft is swingably mounted on the driving shaft along the traveling direction of the reel;

[0010] The clutch mechanism is arranged between the driven shaft and the driving shaft; the clutch mechanism is suitable for closing when the driven shaft is coaxial with the driving shaft, so that the rotational torque on the driving shaft is transmitted to the driven shaft; the clutch mechanism is suitable for disengaging when the driven shaft deflects in the direction where the greenhouse cover is laid, so that the rotational torque on the driving shaft cannot be transmitted to the driven shaft;

[0011] The blocking member is installed between the driving shaft and the driven shaft, and is suitable for preventing the driven shaft from deflecting to a direction where the greenhouse covering member is not laid.

[0012] As an optional technical solution, the clutch mechanism includes:

[0013] A first one-way chainring is slidably mounted on the driving shaft along the axial direction of the driving shaft;

[0014] A second one-way chainring is adapted to mesh with the first one-way chainring and rotate in a direction where the greenhouse cover is laid under the drive of the first one-way chainring, and the second one-way chainring is swingably mounted on the driven shaft along the travel direction of the reel;

[0015] The eccentric wheel is installed on the clutch mechanism perpendicular to the first one-way toothed disc, and is suitable for driving the first one-way toothed disc to translate in a direction away from the second one-way toothed disc when rotating;

[0016] The connecting rod has one end hinged to the eccentric wheel and the other end hinged to the driven shaft, and is suitable for driving the eccentric wheel to rotate when the driven shaft deflects toward the direction where the greenhouse covering is laid.

[0017] As an optional technical solution, it also includes:

[0018] A cage is arranged between the driving shaft and the driven shaft, wherein the driving shaft and the driven shaft are respectively mounted on two sides of the cage;

[0019] The supporting wheels are installed under the retaining frame and are suitable for supporting the retaining frame to walk on the surface of the greenhouse.

[0020] As an optional technical solution, the cage includes:

[0021] The first support frame, the driving shaft is rotatably mounted on the first support frame

[0022] A second support frame, wherein the second one-way chainring is rotatably mounted on the second support frame;

[0023] A third support frame, wherein the driven shaft is rotatably mounted on the third support frame;

[0024] The third support frame is swingably mounted on the first support frame along the traveling direction of the reel, and the second support frame is fixedly mounted on the first support frame.

[0025] As an optional technical solution, it also includes:

[0026] A first rotating shaft is rotatably mounted on the first supporting frame, the driving shaft is fixedly mounted on the outer end of the first rotating shaft, and the first one-way chainring is slidably mounted on the other end of the first rotating shaft;

[0027] The second rotating shaft is rotatably mounted on the third supporting frame, the driven shaft is fixedly mounted on the outer end of the second rotating shaft, and the other end of the second rotating shaft is linked with the second one-way chain disc through a coupling.

[0028] As an optional technical solution, a spring is installed between the first one-way chainring and the first rotating shaft.

[0029] As an optional technical solution, a sliding plate that can slide along the axial direction of the driving shaft is arranged between the first support frame and the second support frame, the first one-way chainring is rotatably mounted on the sliding plate, and the sliding plate is provided with a protrusion suitable for frictionally fitting with the eccentric wheel.

[0030] As an optional technical solution, a plurality of guide pillars parallel to the axial direction of the driving shaft are fixedly arranged between the first support frame and the second support frame, and the guide pillars pass through the sliding plate and frictionally cooperate with the sliding plate.

[0031] As an optional technical solution, the support wheel is installed under the retaining frame through a swing arm, and a spring is arranged between the swing arm and the retaining frame.

[0032] As an optional technical solution, the blocking member is a trip pin fixedly mounted on the first support frame, and the trip pin is suitable for abutting against the third support frame when the driven shaft is coaxial with the driven shaft and organizing the third support frame to swing away from the greenhouse cover.

[0033] The technical solution provided by the present invention has the following technical effects:

[0034] 1. The greenhouse rolling curtain device provided by the present invention comprises: a reel and a driving assembly, wherein the reel is installed on the output shaft of the driving assembly, and the driving assembly is suitable for driving the reel to rotate; the reel has multiple sections, and the one of every two adjacent reels that is close to the driving assembly is a driving shaft, and the one that is away from the driving assembly is a driven shaft, and the driven shaft is swingably installed on the driving shaft along the travel direction of the reel; a clutch mechanism is arranged between the driven shaft and the driving shaft; the clutch mechanism is suitable for closing when the driven shaft is coaxial with the driving shaft, so that the rotational torque on the driving shaft is transmitted to the driven shaft; the clutch mechanism is suitable for separating when the driven shaft deflects in the direction where the greenhouse covering is laid, so that the rotational torque on the driving shaft cannot be transmitted to the driven shaft; a blocking member is installed between the driving shaft and the driven shaft, and is suitable for preventing the driven shaft from deflecting in the direction where the greenhouse covering is not laid.

[0035] In the above scheme, firstly, the original whole reel is split into multiple reels, and each reel will swing when subjected to tension, without transmitting the tension to the driving component, thereby causing deviation.

[0036] Secondly, under the action of the clutch mechanism, taking any two adjacent reels as an example, when the tension on the driven shaft is too large during the process of winding the greenhouse cover, the driven shaft will swing in the direction of the reel. At this time, the driven shaft loses power under the action of the clutch mechanism, and the driven shaft stops rotating and moving. After waiting in place for the driving shaft to move to a coaxial state with the driven shaft, the clutch mechanism closes again, and the driven shaft regains power and keeps coaxial rotation with the driving shaft. The above process can prevent the driven shaft from being deviated in the direction of travel due to excessive tension.

[0037] Once again, when the tension on the driven shaft is too small, the driving shaft is in a tight state when winding the greenhouse cover, and due to the existence of the blocking member, the driven shaft rotates synchronously with the driving shaft, and the greenhouse cover on the driven shaft is in a loose state. Since the driving shaft is close to the drive assembly and moves by the power of the drive assembly, when the tension on the driving shaft is too large, the blocking member can drive the driven shaft to move synchronously. The above process can avoid the deviation caused by the tension on the driven shaft being less than that on the driving shaft.

[0038] Through the analysis of the above three aspects, it can be seen that the rolling shutter device in the present invention can ensure that the roller does not deviate when it is walking around the greenhouse covering on the collision surface, and always keeps moving forward synchronously with the driving component.

[0039] 2. The greenhouse rolling shutter equipment provided by the present invention also includes a retaining frame, which is arranged between the driving shaft and the driven shaft, and the driving shaft and the driven shaft are respectively installed on both sides of the retaining frame; a supporting wheel is installed under the retaining frame and is suitable for supporting the retaining frame to walk on the surface of the greenhouse.

[0040] The functions of the retainer and the eccentric wheel are, on the one hand, to provide a mounting base for the clutch mechanism; on the other hand, to ensure that the position of the eccentric wheel and the blocking member in the clutch mechanism will not change relative to the traveling direction of the roller shaft, thereby ensuring that the clutch mechanism can always separate when the driven shaft deflects in the traveling direction and merge when it is coaxial with the driving shaft. Therefore, the above structure can improve the stability of the working state of the entire rolling curtain device.

[0041] 3. In the greenhouse rolling curtain device provided by the present invention, a plurality of guide pillars parallel to the axial direction of the driving shaft are fixedly arranged between the first support frame and the second support frame, and the guide pillars pass through the sliding plate and are frictionally matched with the sliding plate. The use of the guide pillars can make the movement posture of the sliding plate more stable, and avoid the self-locking of the first one-way toothed disc and the first rotating shaft.

[0042] 4. In the greenhouse rolling curtain device provided by the present invention, the support wheel is installed under the retaining frame through a swing arm, and a spring is arranged between the swing arm and the retaining frame. By utilizing the design of the spring and the swing arm, the walking track of the support wheel can adapt to the greenhouse surface, thereby avoiding failure of the support wheel.

[0043] In summary, the self-propelled greenhouse roller shutter device provided by the present invention can effectively prevent the roller from running off the track during the process of winding the greenhouse cover, and has the advantage of a stable walking posture. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0045] Figure 1 It is a structural schematic diagram of the self-propelled curtain device for the shed described in the background technology of the present invention;

[0046] Figure 2 It is a schematic diagram of the three-dimensional structure of the rolling curtain device provided in Example 1 of the present invention;

[0047] Figure 3 for Figure 2 A front view of the roller blind device shown;

[0048] Figure 4 for Figure 2 Schematic diagram of the exploded structure of the roller shutter device shown;

[0049] Description of reference numerals:

[0050] 1-driving shaft, 2-driven shaft, 4-first one-way chainring, 5-second one-way chainring, 6-eccentric wheel, 7-connecting rod, 9-support wheel, 10-first support frame, 11-second support frame, 12-third support frame, 13-first rotating shaft, 14-second rotating shaft, 15-coupling, 16-spring, 17-sliding plate, 18-guide column, 19-protrusion, 20-swing arm, 21-trip pin, 22-reel, 23-driving assembly. DETAILED DESCRIPTION

[0051] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0052] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0053] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0055] Embodiment 1:

[0056] See also Figures 2 to 4 , which is Example 1 provided by the present invention. This embodiment provides a self-propelled greenhouse rolling curtain device. Compared with the self-propelled greenhouse rolling curtain device in the traditional technology, the device in this embodiment can effectively prevent the reel 22 from deflecting during the walking process on the greenhouse surface, so that the reel 22 always maintains a state perpendicular to the walking direction during walking.

[0057] This embodiment includes a reel 22 and a drive assembly 23, wherein the reel 22 is mounted on an output shaft of the drive assembly 23, and the drive assembly 23 is suitable for driving the reel 22 to rotate; specifically, the drive assembly 23 includes a motor capable of providing rotational torque and a reducer installed in linkage with the motor, and the reel 22 is mounted on the output shaft of the reducer.

[0058] Different from the prior art, the reel 22 in this embodiment has multiple sections, wherein the one of every two adjacent reels 22 that is close to the drive assembly 23 is the driving shaft 1, and the one that is far from the drive assembly 23 is the driven shaft 2. The driven shaft 2 and the driven shaft 2 here are relative concepts. Among two specific adjacent reels 22, the one that is close to the drive assembly 23 is the driving shaft 1, but in the other pair of reels 22 that is closer to the drive assembly 23, the driving shaft 1 becomes the driven shaft 2. Similarly, the driven shaft 2 can also become the driving shaft 1 in another pair of reels 22 that is farther away from the drive assembly 23.

[0059] The driven shaft 2 is swingably mounted on the driving shaft 1 along the traveling direction of the reel 22; specifically, a first rotating shaft 13 is fixedly mounted on the end of the driving shaft 1, and the first rotating shaft 13 is rotatably mounted on the first support frame 10. A second rotating shaft 14 is mounted on the end of the driven shaft 2 through a coupling 15, and the second rotating shaft 14 is rotatably mounted on the third support frame 12. The first support frame 10 and the third support frame 12 are hinged to each other, and the hinge axis is perpendicular to the walking plane of the reel 22.

[0060] The present embodiment also includes a clutch mechanism. The clutch mechanism is arranged between the driven shaft 2 and the driving shaft 1. The clutch mechanism includes a first one-way toothed disc 4, a second one-way toothed disc 5, an eccentric wheel 6 and a connecting rod 7. Specifically, the first one-way toothed disc 4 is slidably installed on the first rotating shaft 13 along the axial direction of the first rotating shaft 13, and a spring 16 is installed between the first rotating shaft 13. In order to drive the first one-way toothed disc 4 to reciprocate, a sliding plate 17 is also fixedly installed on the first one-way toothed disc 4, and a protrusion 19 is provided at the upper end of the sliding plate 17. The protrusion 19 extends out of the first support frame 10 and abuts against the eccentric wheel 6. The eccentric wheel 6 is rotatably installed on the first support frame 10, and the distal end of the eccentric wheel 6 is hinged to the connecting rod 7, and the other end of the connecting rod 7 is hinged to the third support frame 12. When the third support frame 12 rotates along the hinge axis between it and the first support frame 10, it can drive the connecting rod 7 to push the eccentric wheel 6, and the eccentric wheel 6 further pushes the protrusion 19 of the sliding plate 17, thereby causing the first one-way chainring 4 to compress the spring 16 and move in the direction away from the second one-way chainring 5. After the first one-way chainring 4 and the second one-way chainring 5 are disengaged, the rotational torque on the driving shaft 1 cannot be transmitted to the driven shaft 2. The above structure can be used to close the clutch mechanism when the driven shaft 2 is coaxial with the driving shaft 1, so that the rotational torque on the driving shaft 1 is transmitted to the driven shaft 2; when the driven shaft 2 deflects in the direction where the greenhouse cover is laid, the clutch mechanism is separated, so that the rotational torque on the driving shaft 1 cannot be transmitted to the driven shaft 2.

[0061] The second one-way chainring 5 is suitable for meshing with the first one-way chainring 4. The second one-way chainring 5 can be driven by the first one-way chainring 4 to rotate in the direction where the greenhouse cover is laid, but the first one-way chainring 4 cannot drive the second one-way chainring 5 to rotate in the opposite direction. The second one-way chainring 5 is installed on the second support frame 11, and the second support frame 11 and the first support frame 10 are fixedly installed. The sliding plate 17 is arranged between the first support frame 10 and the second support frame 11, and slides through a plurality of guide posts 18.

[0062] In order to prevent the driven shaft 2 from deflecting in the direction away from the greenhouse cover, a blocking member is further provided in this embodiment, and the blocking member is mounted on the first support frame 10, and a groove abutting against the trip pin 21 is provided on the third support frame 12. When the driven shaft 2 has a moment of deflection in the direction away from the greenhouse cover, the abutment between the trip pin 21 and the groove can prevent the moment from driving the driven shaft 2 to deflect.

[0063] In the above structure, the first support frame 10, the second support frame 11 and the third support frame 12 together form a retaining frame; a support wheel 9 is installed below the retaining frame, and the support wheel 9 is installed at the lower part of the first support frame 10 through a swing arm 20, and a spring 16 is installed between the swing arm 20 and the first support frame 10. The functions of the support wheel 9 and the retaining frame are: on the one hand, to provide a mounting base for the clutch mechanism; on the other hand, to prevent the position of the eccentric wheel 6 and the blocking member in the clutch mechanism from changing relative to the traveling direction of the winding shaft 22, thereby ensuring that the clutch mechanism can always separate when the driven shaft 2 deflects in the traveling direction and merge when it is coaxial with the driving shaft 1.

[0064] The working principle of the above embodiment is that after the original whole reel 22 is split into multiple reels 22, each reel 22 will swing after being subjected to tension, without transmitting the tension to the driving component 23, thereby causing deviation.

[0065] Under the action of the clutch mechanism, when the tension on the driven shaft 2 is too large during the process of winding the greenhouse cover, the driven shaft 2 will swing in the direction of travel of the winding shaft 22. The third support frame 12 rotates along the hinge axis between it and the first support frame 10, driving the connecting rod 7 to push the eccentric wheel 6, and the eccentric wheel 6 then pushes the protrusion 19 of the sliding plate 17, thereby causing the first one-way chainring 4 to compress the spring 16 and move in the direction away from the second one-way chainring 5. When the first one-way chainring 4 and the second one-way chainring 5 are disengaged, the rotational torque on the driving shaft 1 cannot be transmitted to the driven shaft 2. The above structure can be used to achieve that the clutch mechanism is closed when the driven shaft 2 is coaxial with the driving shaft 1, so that the rotational torque on the driving shaft 1 is transmitted to the driven shaft 2; when the driven shaft 2 is deflected in the direction where the greenhouse cover is laid, the clutch mechanism is separated, so that the rotational torque on the driving shaft 1 cannot be transmitted to the driven shaft 2, and the driven shaft 2 stops rotating and moving, and waits in place until the driving shaft 1 moves to a coaxial state with the driven shaft 2, and then the clutch mechanism is closed again, and the driven shaft 2 regains power and keeps coaxial rotation with the driving shaft 1.

[0066] When the tension on the driven shaft 2 is too small, the driving shaft 1 is in a taut state when winding the greenhouse cover. Due to the presence of the trip pin 21 and the groove, the driven shaft 2 cannot deflect away from the greenhouse cover and can only rotate synchronously with the driving shaft 1. The greenhouse cover on the driven shaft 2 completes the rolling curtain in a loose state.

[0067] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A self-propelled greenhouse rolling curtain device, characterized in that: include: A reel and a drive assembly, wherein the reel is mounted on an output shaft of the drive assembly, and the drive assembly is adapted to drive the reel to rotate; The reel has multiple sections, and the one of every two adjacent reels that is close to the driving assembly is a driving shaft, and the one that is far from the driving assembly is a driven shaft, and the driven shaft is swingably mounted on the driving shaft along the traveling direction of the reel; The clutch mechanism is arranged between the driven shaft and the driving shaft; the clutch mechanism is suitable for closing when the driven shaft is coaxial with the driving shaft, so that the rotational torque on the driving shaft is transmitted to the driven shaft; the clutch mechanism is suitable for disengaging when the driven shaft deflects in the direction where the greenhouse cover is laid, so that the rotational torque on the driving shaft cannot be transmitted to the driven shaft; A blocking member, installed between the driving shaft and the driven shaft, suitable for preventing the driven shaft from deflecting in a direction where the greenhouse cover is not laid; The clutch mechanism comprises: A first one-way chainring is slidably mounted on the driving shaft along the axial direction of the driving shaft; A second one-way chainring is adapted to mesh with the first one-way chainring and rotate in a direction where the greenhouse cover is laid under the drive of the first one-way chainring, and the second one-way chainring is swingably mounted on the driven shaft along the travel direction of the reel; The eccentric wheel is installed on the clutch mechanism perpendicular to the first one-way toothed disc, and is suitable for driving the first one-way toothed disc to translate in a direction away from the second one-way toothed disc when rotating; The connecting rod has one end hinged to the eccentric wheel and the other end hinged to the driven shaft, and is suitable for driving the eccentric wheel to rotate when the driven shaft deflects toward the direction where the greenhouse covering is laid.

2. The self-propelled greenhouse rolling curtain equipment according to claim 1 is characterized in that: Also includes: A cage is arranged between the driving shaft and the driven shaft, wherein the driving shaft and the driven shaft are respectively mounted on two sides of the cage; The supporting wheels are installed under the retaining frame and are suitable for supporting the retaining frame to walk on the surface of the greenhouse.

3. The self-propelled greenhouse rolling curtain device according to claim 2 is characterized in that: The cage includes: The first support frame, the driving shaft is rotatably mounted on the first support frame A second support frame, wherein the second one-way chainring is rotatably mounted on the second support frame; A third support frame, wherein the driven shaft is rotatably mounted on the third support frame; The third support frame is swingably mounted on the first support frame along the traveling direction of the reel, and the second support frame is fixedly mounted on the first support frame.

4. The self-propelled greenhouse rolling curtain device according to claim 3 is characterized in that: Also includes: A first rotating shaft is rotatably mounted on the first supporting frame, the driving shaft is fixedly mounted on the outer end of the first rotating shaft, and the first one-way chainring is slidably mounted on the other end of the first rotating shaft; The second rotating shaft is rotatably mounted on the third supporting frame, the driven shaft is fixedly mounted on the outer end of the second rotating shaft, and the other end of the second rotating shaft is linked with the second one-way chain disc through a coupling.

5. The self-propelled greenhouse rolling curtain device according to claim 4 is characterized in that: A spring is installed between the first one-way chainring and the first rotating shaft.

6. The self-propelled greenhouse rolling curtain device according to claim 3 is characterized in that: A sliding plate which can slide along the axial direction of the driving shaft is arranged between the first supporting frame and the second supporting frame, the first one-way toothed disc is rotatably mounted on the sliding plate, and the sliding plate is provided with a protrusion which is suitable for frictionally cooperating with the eccentric wheel.

7. The self-propelled greenhouse rolling curtain device according to claim 6, characterized in that: A plurality of guide pillars parallel to the axial direction of the driving shaft are fixedly arranged between the first support frame and the second support frame. The guide pillars pass through the sliding plate and are frictionally matched with the sliding plate.

8. The self-propelled greenhouse rolling curtain device according to claim 2, characterized in that: The supporting wheel is installed below the retaining frame through a swing arm, and a spring is arranged between the swing arm and the retaining frame.

9. A self-propelled greenhouse rolling curtain device according to any one of claims 3 to 8, characterized in that: The blocking member is a trip pin fixedly mounted on the first support frame, and the trip pin is suitable for abutting against the third support frame when the driven shaft is coaxial with the driven shaft and organizing the third support frame to swing in a direction away from the greenhouse cover.

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