Angle controller and greenhouse roller shutter device

Abstract

An angle controller comprises a first connecting rod, a second connecting rod, a first rack, a first gear, a spring and a second rack, the first end of the first connecting rod is hinged to the first end of the second connecting rod, the first end of the first rack is rotationally connected with the first connecting rod, the second end of the first rack is not in contact with the second connecting rod, and the first gear is rotationally connected with the second connecting rod. One end of the spring is connected with the first connecting rod, the other end of the spring is connected with the first rack, the first rack is meshed with the first gear, the second rack is in sliding connection with the second connecting rod, the first gear drives the second rack to slide relative to the second connecting rod, and the first gear is round. The second end of the first rack does not make contact with the second connecting rod, it is guaranteed that the first rack is engaged with the first gear all the time through spring tension, the requirements for machining precision and installation precision are greatly reduced, the manufacturing cost is reduced, and the greenhouse roller shutter device is further provided.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural greenhouses, and in particular to an angle controller and a greenhouse rolling curtain device. Background Art

[0002] Greenhouse cultivation is increasingly valued by the government and farmers, especially in northern my country, where the area of ​​greenhouses is increasing year by year. In the northern region, the temperature difference between day and night is large in winter and spring. In order to ensure the survival of crops and increase yields, insulation measures are taken for greenhouses. Generally, curtains with insulation properties, such as quilts, are laid on the greenhouses. In order to provide the greenhouse with insulation, lighting, ventilation and sunshade functions, it is necessary to roll up and lower the curtains frequently. The rolling curtain shaft is driven by an electric motor to move along the top of the greenhouse to roll up or unfold the quilt. The rolling curtain shaft may exceed the limit during movement, and the rolling curtain shaft will fall from the top of the greenhouse, causing an accident.

[0003] See also Figures 1 to 4 The applicant previously designed an angle controller, including a first connecting rod, a second connecting rod, a toothed disc, a first gear, a second rack, a trigger element, a limiting element, and a roller, wherein the roller includes a roller shaft, a motor, and a processor, wherein the first end of the first connecting rod is hinged to the first end of the second connecting rod, the second end of the first connecting rod is hinged to the ground, the second end of the second connecting rod is rotatably connected to the roller shaft, the toothed disc is fixed to the first connecting rod, the toothed disc is slidably connected to the second connecting rod, the first gear is rotatably connected to the second connecting rod, the toothed disc is meshed with the first gear, the second rack is slidably connected to the second connecting rod, the first gear drives the second rack to slide relative to the second connecting rod, a trigger element is provided on the second rack, a limiting element is provided on the second connecting rod, the trigger element is in contact with the limiting element, the motor is used to drive the roller shaft to rotate, and the processor is connected to the limiting element and the motor. When the rolling curtain shaft moves, the rolling curtain shaft drives the second connecting rod to move, and the angle between the first connecting rod and the second connecting rod changes. When the rolling curtain shaft exceeds the limit, the angle between the first connecting rod and the second connecting rod reaches the limited angle, the gear plate drives the first gear to rotate, and the first gear drives the second rack to move. The trigger element triggers the limit element to issue a stop command, and the motor stops.

[0004] The disadvantage of the prior design is that the toothed disc is fixedly connected to the first connecting rod. In order to ensure that the toothed disc and the first gear are always meshed, high processing and installation accuracy are required for the toothed disc, the first connecting rod, the second connecting rod and the first gear, which increases the cost. Summary of the invention

[0005] In view of this, it is necessary to propose an angle controller to address the above shortcomings.

[0006] It is also necessary to propose a greenhouse rolling curtain device.

[0007] An angle controller comprises a first connecting rod, a second connecting rod, a first rack, a first gear, a spring, a second rack, a trigger element, and a limiting element. The first end of the first connecting rod is hinged to the first end of the second connecting rod, the first end of the first rack is rotatably connected to the first connecting rod, the second end of the first rack does not contact the second connecting rod, the first gear is rotatably connected to the second connecting rod, one end of the spring is connected to the first connecting rod, and the other end of the spring is connected to the first rack. The first rack is meshed with the first gear, the second rack is slidably connected to the second connecting rod, the first gear drives the second rack to slide relative to the second connecting rod, the second rack is provided with a trigger element, the second connecting rod is provided with a limiting element, the trigger element is in contact with the limiting element, the limiting element issues a control instruction, and the first gear is circular.

[0008] Preferably, the spring is used to pull the first rack to rotate so that the first rack is in close contact with the first gear.

[0009] Preferably, the connection point between the spring and the first rack is offset from the hinge point between the first rack and the first connecting rod.

[0010] Preferably, the first rack is arc-shaped.

[0011] Preferably, the first rack is linear.

[0012] Preferably, the angle controller further comprises a second gear, the first gear and the second gear are coaxially arranged, and the first gear and the second gear rotate synchronously.

[0013] Preferably, the angle controller further comprises a third gear and a fourth gear, the third gear and the fourth gear are coaxially arranged, the third gear and the fourth gear rotate synchronously, and the second gear and the third gear are meshed.

[0014] Preferably, the angle controller further comprises a fifth gear and a sixth gear, the fifth gear and the sixth gear are coaxially arranged, the fifth gear and the sixth gear rotate synchronously, the fourth gear is meshed with the fifth gear, and the sixth gear is meshed with the second rack.

[0015] A greenhouse rolling curtain device comprises an angle controller and a curtain roller, wherein the curtain roller comprises a curtain shaft, the second end of the first connecting rod is hinged to the ground, and the second end of the second connecting rod is rotatably connected to the curtain shaft.

[0016] Preferably, the roller blind device further comprises a motor and a processor, wherein the motor is used to drive the roller blind shaft to rotate, and the processor is connected to the limiting element and the motor.

[0017] Beneficial effects: The first rack is used to replace the toothed disc, the first rack is rotatably connected to the first connecting rod, the second end of the first rack does not contact the second connecting rod, and the spring tension is used to make the first rack always close to the first gear, thereby ensuring that the first rack is always meshed with the first gear, and the processing accuracy of the first rack, the first connecting rod, the second connecting rod, and the first gear, as well as the installation accuracy requirements among the first rack, the first connecting rod, the second connecting rod, and the first gear are greatly reduced, thereby reducing the cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the previously designed angle controller.

[0019] Figure 2 It is a schematic diagram of the assembly of the angle controller and the greenhouse.

[0020] Figure 3 It is an axonometric view of the angle controller at a first angle.

[0021] Figure 4 It is an axonometric view of the second angle of the angle controller.

[0022] In the figure: angle controller 10, first connecting rod 11, second connecting rod 12, first rack 13, first gear 14, spring 15, second rack 16, trigger element 17, limit element 18, toothed disc 19, second gear 110, third gear 120, fourth gear 130, fifth gear 140, sixth gear 150, first mounting plate 160, second mounting plate 170, U-shaped clip 180, roller shutter 20, roller shutter shaft 21, quilt 22, greenhouse body 30, front wall 31, rear wall 32, vertical beam 33, horizontal beam 34, first arc beam 35, second arc beam 36. DETAILED DESCRIPTION

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] See also Figure 3 and Figure 4The embodiment of the present invention provides an angle controller 10, including a first connecting rod 11, a second connecting rod 12, a first rack 13, a first gear 14, a spring 15, a second rack 16, a trigger element 17, and a limiting element 18. The first end of the first connecting rod 11 is hinged to the first end of the second connecting rod 12, the first end of the first rack 13 is rotatably connected to the first connecting rod 11, the second end of the first rack 13 is not in contact with the second connecting rod 12, the first gear 14 is rotatably connected to the second connecting rod 12, one end of the spring 15 is connected to the first connecting rod 11, the other end of the spring 15 is connected to the first rack 13, the first rack 13 is meshed with the first gear 14, the second rack 16 is slidably connected to the second connecting rod 12, the first gear 14 drives the second rack 16 to slide relative to the second connecting rod 12, a trigger element 17 is provided on the second rack 16, a limiting element 18 is provided on the second connecting rod 12, the trigger element 17 is in contact with the limiting element 18, the limiting element 18 issues a control instruction, and the first gear 14 is circular.

[0025] The trigger element 17 and the limit element 18 can be general components, which will not be described in detail. Through the connection relationship between the first rack 13, the first gear 14, and the second rack 16, the angle change is converted into the distance change of the first rack 13, which satisfies the angle precision control between the first connecting rod 11 and the second connecting rod 12.

[0026] Beneficial effect: the first rack 13 is used to replace the toothed disc 19, the first rack 13 is rotatably connected to the first connecting rod 11, the second end of the first rack 13 is not in contact with the second connecting rod 12, and the tension of the spring 15 is used to make the first rack 13 always close to the first gear 14, thereby ensuring that the first rack 13 is always meshed with the first gear 14, and the processing accuracy of the first rack 13, the first connecting rod 11, the second connecting rod 12, and the first gear 14 and the installation accuracy requirements among the first rack 13, the first connecting rod 11, the second connecting rod 12, and the first gear 14 are greatly reduced, thereby reducing the manufacturing cost.

[0027] See also Figure 3 and Figure 4 Furthermore, the spring 15 is used to pull the first rack 13 to rotate so that the first rack 13 and the first gear 14 are in close contact.

[0028] See also Figure 3 and Figure 4 Further, the connection point between the spring 15 and the first rack 13 is set away from the hinge point between the first rack 13 and the first connecting rod 11.

[0029] See also Figure 3 and Figure 4 Further, the first rack 13 is arc-shaped. Using an arc-shaped rack to replace the previously designed toothed disc 19 can reduce the size.

[0030] Exemplarily, the curvature of the first rack 13 gradually increases from the first end to the second end, so as to reduce the size of the first rack 13 .

[0031] See also Figure 3 and Figure 4 , further, the first rack 13 is linear.

[0032] In one embodiment, the first gear 14 is an ellipse. When the first gear 14 rotates relative to the first rack 13, the first rack 13 will swing significantly, and it can be implemented to detect whether the first gear 14 and the first rack 13 are in a meshing state.

[0033] See also Figure 3 and Figure 4 Furthermore, the angle controller 10 also includes a second gear 110, the first gear 14 and the second gear 110 are coaxially arranged, and the first gear 14 and the second gear 110 rotate synchronously.

[0034] See also Figure 3 and Figure 4 Further, the angle controller 10 also includes a third gear 120 and a fourth gear 130 , the third gear 120 and the fourth gear 130 are coaxially arranged, the third gear 120 and the fourth gear 130 rotate synchronously, and the second gear 110 and the third gear 120 are meshed.

[0035] See also Figure 3 and Figure 4 Further, the angle controller 10 also includes a fifth gear 140 and a sixth gear 150, the fifth gear 140 and the sixth gear 150 are coaxially arranged, the fifth gear 140 and the sixth gear 150 rotate synchronously, the fourth gear 130 and the fifth gear 140 are meshed, and the sixth gear 150 is meshed with the second rack 16.

[0036] The combined design of the first gear 14 , the second gear 110 , the third gear 120 , the fourth gear 130 , the fifth gear 140 , and the sixth gear 150 meets the magnification requirement and improves the angle control accuracy.

[0037] Exemplarily, the first rack 13 and the spring 15 are mounted on the first mounting plate 160, and the first gear 14, the second gear 110, the third gear 120, the fourth gear 130, the fifth gear 140, the sixth gear 150, the second rack 16, the trigger element 17, and the limiting element 18 are mounted on the second mounting plate 170. The first mounting plate 160 and the second mounting plate 170 are respectively fixed to the first connecting rod 11 and the second connecting rod 12 by means of U-shaped clips 180 for easy disassembly and assembly.

[0038] See also Figure 2An embodiment of the present invention provides a greenhouse rolling shutter device, including an angle controller 10 and a roller shutter 20, the roller shutter 20 includes a roller shutter shaft 21, the second end of the first connecting rod 11 is hinged to the ground, and the second end of the second connecting rod 12 is rotatably connected to the roller shutter shaft 21.

[0039] Furthermore, the roller blind 20 further includes a motor and a processor. The motor is used to drive the roller blind shaft 21 to rotate. The processor is connected to the limiting element 18 and the motor.

[0040] The processor is, for example, a single chip microcomputer, a CPU, etc. When the limiting element 18 issues a "stop" instruction, the processor receives the "stop" instruction and controls the motor to stop.

[0041] See also Figure 2 In one embodiment, the greenhouse rolling curtain device includes a greenhouse body 30, which includes a front wall 31, a rear wall 32, a vertical beam 33, a horizontal beam 34, a first curved beam 35, and a second curved beam 36. The lower end of the vertical beam 33 is connected to the rear wall 32, the upper end of the vertical beam 33 is connected to the first end of the horizontal beam 34, the second end of the horizontal beam 34 is connected to the first end of the second curved beam 36, the second end of the second curved beam 36 is connected to the front wall 31, the first end of the first curved beam 35 is connected to the first end of the horizontal beam 34, and the second end of the first curved beam 35 is connected to the second end of the horizontal beam 34. The first curved beam 35 and the horizontal beam 34 form a triangular stable structure, and the second curved beam 36 bulges upward to withstand a heavier quilt 22.

[0042] The steps in the method of the embodiment of the present invention can be adjusted in order, combined or deleted according to actual needs.

[0043] The modules or units in the device of the embodiment of the present invention may be combined, divided or deleted according to actual needs.

[0044] What is disclosed above is only a preferred embodiment of the present invention, which certainly cannot be used to limit the scope of rights of the present invention. A person skilled in the art can understand that all or part of the processes of the above embodiments and equivalent changes made according to the claims of the present invention still fall within the scope of the invention.

Claims

1. An angle controller, characterized in that: It includes a first connecting rod, a second connecting rod, a first rack, a first gear, a spring, a second rack, a trigger element, and a limiting element. The first end of the first connecting rod is hinged to the first end of the second connecting rod, the first end of the first rack is rotatably connected to the first connecting rod, the second end of the first rack does not contact the second connecting rod, the first gear is rotatably connected to the second connecting rod, one end of the spring is connected to the first connecting rod, and the other end of the spring is connected to the first rack. The first rack is meshed with the first gear, the second rack is slidably connected to the second connecting rod, the first gear drives the second rack to slide relative to the second connecting rod, the second rack is provided with a trigger element, the second connecting rod is provided with a limiting element, the trigger element is in contact with the limiting element, the limiting element issues a control instruction, and the first gear is circular.

2. The angle controller according to claim 1, characterized in that: The spring is used to pull the first rack to rotate so that the first rack is in close contact with the first gear.

3. The angle controller according to claim 2, characterized in that: The connection point between the spring and the first rack is offset from the hinge point between the first rack and the first connecting rod.

4. The angle controller according to claim 1, characterized in that: The first rack is arc-shaped.

5. The angle controller according to claim 1, characterized in that: The first rack is linear.

6. The angle controller according to claim 1, characterized in that: The angle controller further comprises a second gear, the first gear and the second gear are coaxially arranged, and the first gear and the second gear rotate synchronously.

7. The angle controller according to claim 6, characterized in that: The angle controller also includes a third gear and a fourth gear, the third gear and the fourth gear are coaxially arranged, the third gear and the fourth gear rotate synchronously, and the second gear is meshed with the third gear.

8. The angle controller according to claim 7, characterized in that: The angle controller also includes a fifth gear and a sixth gear, the fifth gear and the sixth gear are coaxially arranged, the fifth gear and the sixth gear rotate synchronously, the fourth gear is meshed with the fifth gear, and the sixth gear is meshed with the second rack.

9. A greenhouse rolling curtain device, characterized in that: It comprises the angle controller and roller shutter as claimed in claim 1, wherein the roller shutter comprises a roller shutter shaft, the second end of the first connecting rod is hinged to the ground, and the second end of the second connecting rod is rotationally connected to the roller shutter shaft.

10. The greenhouse rolling curtain device according to claim 9, characterized in that: The roller blind device further comprises a motor and a processor. The motor is used to drive the roller blind shaft to rotate. The processor is connected with the limiting element and the motor.

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