Anti-rollover device for greenhouse heat preservation quilt

Abstract

The utility model discloses an anti-rollover device for a greenhouse heat preservation quilt, and belongs to the technical field of agricultural facilities. The device mainly comprises a heat preservation quilt, the heat preservation quilt is rolled on a thin film layer through a curtain rolling machine, a heat preservation quilt rollover prevention device is installed on the top of the greenhouse and comprises a diameter detection assembly, an over-turning prevention assembly and a mercury limiting stopper, and the diameter detection assembly can accurately judge the diameter state of the heat preservation quilt rolled to the top of the greenhouse; according to the over-turning prevention assembly, two pedal switches which are connected in series and installed in a front-back staggered mode are utilized, signals are sent to a relay by pressing the switches, a mercury limiter triggers an internal circuit according to the inclination angle change when the heat preservation quilt is wound, and the safety and stability of the heat preservation quilt in the winding and unwinding process are greatly improved through multi-directional control; the damage risk caused by rollover is reduced, and the service life of the heat preservation quilt is prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of agricultural facilities, in particular to a heat preservation quilt anti-rollover device for a greenhouse. BACKGROUND

[0002] In the existing greenhouse, the heat preservation quilt is rolled up on the film layer covering the top surface of the greenhouse frame by a roller shutter machine. During the day, the roller shutter machine retracts the heat preservation quilt to allow the crops to fully receive sunlight. At night or during low temperature periods, the roller shutter machine lowers the heat preservation quilt to further increase the temperature inside the greenhouse, thereby playing a heat preservation role.

[0003] However, when the heat preservation quilt is rolled up, if the roller shutter machine rolls up too much, as the diameter of the heat preservation quilt rolled up on the roof gradually increases, without an effective control mechanism, the heat preservation quilt may unfold from the other side of the greenhouse under the action of gravity, resulting in rollover, which not only affects the normal use of the heat preservation quilt, but also may cause damage to the heat preservation quilt.

[0004] Therefore, it is necessary to provide a heat preservation quilt anti-rollover device for a greenhouse to solve the above problems.

[0005] It should be noted that the above information disclosed in the background section is only used to understand the background technology of the present application concept, and therefore, it can contain information that does not constitute prior art. CONTENT OF THE UTILITY MODEL

[0006] The purpose of the present application is to provide a heat preservation quilt anti-rollover device for a greenhouse to solve the problems raised in the background technology.

[0007] The technical solution adopted by the present application to solve its technical problems is:

[0008] A heat preservation quilt anti-rollover device for a greenhouse, the greenhouse comprises an earth wall, a greenhouse frame, a film layer and a heat preservation quilt, the greenhouse frame is built on one side of the earth wall, the film layer covers the top surface of the greenhouse frame, the heat preservation quilt is rolled up on the film layer by a roller shutter machine, the top of the greenhouse is provided with a heat preservation quilt anti-rollover device, the heat preservation quilt anti-rollover device comprises a diameter detection assembly, an anti-overturning assembly and a mercury position limiter.

[0009] The diameter detection assembly is respectively fixedly installed on the top of the greenhouse frame on both sides, the anti-overturning assembly is installed at the top of the earth wall and the greenhouse frame, and the anti-overturning assembly is arranged at the center of the top surface of the greenhouse frame which is not covered by the heat preservation quilt, and the mercury position limiter is bonded on the surface of the heat preservation quilt.

[0010] Preferably, the diameter detection assembly comprises two mounting plates and infrared pairs of devices, the infrared pairs of devices are mounted on the side walls of the mounting plates, the two mounting plates are respectively mounted on the two sides of the top of the greenhouse frame, the two infrared pairs of devices are mirror image arranged on the two sides of the top of the greenhouse frame, and the two infrared pairs of devices receive infrared signals from each other.

[0011] Preferably, the side wall of the mounting plate is provided with an oblong waist groove, the infrared pairs of devices are threadedly connected with nuts through the oblong waist groove, and the nuts abut against the side wall of the mounting plate.

[0012] Preferably, the anti-overturning assembly comprises a fixed plate, a first pedal switch and a second pedal switch, the first pedal switch and the second pedal switch are both mounted on the top surface of the fixed plate, and the fixed plate is fixedly mounted on the greenhouse frame below the film layer.

[0013] Preferably, the first pedal switch and the second pedal switch are installed in a front-rear staggered manner on the top surface of the fixed plate, and the first pedal switch and the second pedal switch are connected in series.

[0014] Preferably, the detection end of the mercury limiter is bonded to the surface of the thermal insulation quilt located on the top surface of the greenhouse frame.

[0015] Preferably, the signal transmitting end of the infrared pairs of devices and the signal receiving end of the controller are electrically connected through wires, the control end of the controller is electrically connected with the relay through wires, and the output end of the relay is electrically connected with the power supply end of the roller shutter machine.

[0016] Preferably, the output ends of the first pedal switch and the second pedal switch connected in series are electrically connected with the input end of the relay through wires.

[0017] Preferably, the mercury limiter is electrically connected with the main switch through wires, and the main switch is electrically connected with the input end of the relay.

[0018] The beneficial effects of the present application are as follows:

[0019] The diameter detection assembly, the anti-overturning assembly and the mercury limiter work cooperatively to effectively avoid the problem that the thermal insulation quilt is overturned due to improper operation of the roller shutter machine.

[0020] The diameter detection assembly can accurately judge the diameter state of the thermal insulation quilt rolled to the top of the greenhouse, and once the infrared rays are blocked, a signal is sent to the control circuit to stop the roller shutter machine from rolling, thereby preventing over-rolling. The anti-overturning assembly uses two pedal switches connected in series and installed in a front-rear staggered manner, and when the thermal insulation quilt is unrolled and covered, the pedal switches are pressed to send a signal to the relay to stop the roller shutter machine from unrolling, thereby preventing over-unrolling. The mercury limiter triggers the internal circuit according to the change of the inclination angle when the thermal insulation quilt is rolled, and the roller shutter machine is stopped by the main switch and the relay.

[0021] Multi-directional control greatly improves the safety and stability of the thermal blanket in the process of folding and unfolding, reduces the damage risk caused by rollover, and prolongs the service life of the thermal blanket.

[0022] In addition to the purposes, features and advantages described above, the present application has other purposes, features and advantages. The present application will be further described below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0023] The drawings accompanying the specification of this application form a part thereof, serve to provide further understanding of the application, and together with the description of the exemplary embodiments of the application, serve to explain the application, and do not constitute improper limitations on the application.

[0024] In the drawings:

[0025] Figure 1 It is a whole one side structure schematic view of the anti-rollover device for the thermal blanket of the greenhouse;

[0026] Figure 2 It is a whole other side structure schematic view of the anti-rollover device for the thermal blanket of the greenhouse;

[0027] Figure 3 It is a whole other side structure schematic view of the anti-rollover device for the thermal blanket of the greenhouse; Figure 2 The enlarged structure schematic view of A in the middle;

[0028] Figure 4 It is a diameter detection assembly structure schematic view of the anti-rollover device for the thermal blanket of the greenhouse;

[0029] Figure 5 It is a diameter detection assembly structure schematic view of the anti-rollover device for the thermal blanket of the greenhouse;

[0030] Figure 6 It is a system block diagram of the anti-rollover device for the thermal blanket of the greenhouse.

[0031] In the drawings, various reference signs are:

[0032] 1, greenhouse frame;

[0033] 2, film layer;

[0034] 3, thermal blanket;

[0035] 4, diameter detection assembly; 41, mounting plate; 42, long circular waist groove; 43, infrared emitter-receiver device;

[0036] 5, anti-rollover assembly; 51, fixed plate; 52, first pedal switch; 53, second pedal switch;

[0037] 6, mercury position limiter;

[0038] 7. Controller;

[0039] 8. Relay;

[0040] 9. Roller shutter machine;

[0041] 10. Master switch. DETAILED DESCRIPTION

[0042] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The technical solutions in the embodiments of the present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0043] In order for those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the scope of protection of the present application.

[0044] Please refer to Figures 1-6 , the embodiments provided by the utility model have the advantages of simple structure, convenient use, low cost, and the like.

[0045] As Figure 1 shown, a device for preventing the heat preservation quilt of a greenhouse from overturning includes a diameter detection assembly 4, an anti-overturning assembly 5, and a mercury position limiter 6.

[0046] In order to prevent the heat preservation quilt 3 from overturning due to improper operation of the roller shutter machine 9 during the rolling process, a heat preservation quilt anti-overturning device is installed on the top of the greenhouse. The heat preservation quilt anti-overturning device includes a diameter detection assembly 4, an anti-overturning assembly 5, and a mercury position limiter 6.

[0047] As Figure 1 and Figure 4As shown, the diameter detection assembly 4 is fixedly installed on the top of the two sides of the greenhouse frame 1, and the diameter detection assembly 4 includes two mounting plates 41 and infrared transmitting and receiving devices 43, the infrared transmitting and receiving devices 43 are installed on the side walls of the mounting plates 41, the two mounting plates 41 are installed on the top of the two sides of the greenhouse frame 1, the two infrared transmitting and receiving devices 43 are mirror image arranged on the top of the two sides of the greenhouse frame 1, and the infrared signals are received by each other, when the thermal blanket 3 is rolled up to the roof of the greenhouse by the roller shutter machine 9, the rolling diameter gradually increases, and finally the infrared rays between the two infrared transmitting and receiving devices 43 are blocked, by detecting whether the infrared rays are blocked, the diameter state of the thermal blanket 3 rolled up to the roof of the greenhouse can be accurately judged, and once the infrared rays are blocked, a signal can be sent to the subsequent control circuit to stop the work of the roller shutter machine 9 to avoid the thermal blanket 3 from being rolled up too much to cause the thermal blanket 3 to overturn.

[0048] Further, the side wall of the mounting plate 41 is provided with an oblong waist groove 42, the infrared transmitting and receiving device 43 is connected with the nut through the oblong waist groove 42 by a screw, the nut abuts against the side wall of the mounting plate 41, and the oblong waist groove 42 allows the installation position of the infrared transmitting and receiving device 43 to be adjusted, the position of the infrared transmitting and receiving device 43 on the mounting plate 41 can be flexibly adjusted according to the size of the actual greenhouse, the best position of the thermal blanket 3 rolled up and other factors, so as to improve the accuracy and adaptability of detection.

[0049] As shown in Figure 1 and Figure 5 As shown, the anti-overturning assembly 5 is installed at the top of the interface between the earth wall and the greenhouse frame 1, and the anti-overturning assembly 5 is arranged at the central position of the top surface of the greenhouse frame 1 which is not covered by the thermal blanket 3, specifically, the anti-overturning assembly 5 includes a fixed plate 51, a first pedal switch 52 and a second pedal switch 53, the first pedal switch 52 and the second pedal switch 53 are both installed on the top surface of the fixed plate 51, and the fixed plate 51 is fixedly installed on the greenhouse frame 1 below the film layer 2, when the thermal blanket 3 is unrolled to the position of the anti-overturning assembly 5 on the top surface of the greenhouse frame 1 which is not covered, the first pedal switch 52 and the second pedal switch 53 will be pressed in sequence to make the series circuit conductive, through the action of the pedal switch being pressed to make the circuit conductive, a signal is sent to the relay 8, and then the roller shutter machine 9 is controlled to stop unrolling;

[0050] Further, the first pedal switch 52 and the second pedal switch 53 are installed in front of and behind the top surface of the fixed plate 51 in a staggered manner, the first pedal switch 52 and the second pedal switch 53 are connected in series, and the two pedal switches are installed in front of and behind the top surface of the fixed plate 51 in a staggered manner and connected in series, which can prevent the switch from being actuated due to accidental factors (such as wind blowing the film), improve the reliability of control, and effectively avoid the thermal blanket 3 from being unrolled too much to cause the thermal blanket 3 to overturn.

[0051] As shown in Figure 2As shown, the mercury positioner 6 is bonded to the surface of the thermal insulation 3, specifically, the detection end of the mercury positioner 6 is bonded to the surface of the thermal insulation 3 located at the top of the greenhouse frame 1, when the thermal insulation 3 is rolled up, its inclination angle changes, so that the mercury position in the mercury positioner 6 changes, thereby triggering the circuit in the mercury positioner 6 to conduct.

[0052] As shown in Figure 6 In order to realize the control of the thermal insulation anti-rollover device to start and stop the roller shutter machine 9, to prevent the thermal insulation 3 from rolling up and causing the thermal insulation 3 to roll over, the signal emitting end of the infrared emitter-receiver device 43 and the signal receiving end of the controller 7 are electrically connected by wires, the control end of the controller 7 is electrically connected with the relay 8 through wires, and the output end of the relay 8 is electrically connected with the power supply end of the roller shutter machine 9. When the infrared rays are blocked by the rolling up of the thermal insulation 3, the signal emitting end outputs a signal to the controller 7, the control end of the controller 7 is connected with the relay 8, and the controller 7 receives the signal and outputs a control signal through the control end to make the relay 8 act, the output end of the relay 8 controls the power supply end of the roller shutter machine 9, realizes the on-off control of the power supply of the roller shutter machine 9, and stops the roller shutter machine 9 from rolling up.

[0053] The output ends of the first and second pedal switches 52 and 53 connected in series are electrically connected with the input end of the relay 8 through wires, and the output ends of the first and second pedal switches 52 and 53 are connected to the input end of the relay 8. When the two pedal switches are pressed in turn by the thermal insulation 3 to conduct, the signal is transmitted to the relay 8, the relay 8 is actuated to control the power supply end of the roller shutter machine 9, and the roller shutter machine 9 is stopped from unrolling.

[0054] The mercury positioner 6 is electrically connected with the main switch 10 through wires, the main switch 10 is electrically connected with the input end of the relay 8, the mercury positioner 6 is electrically connected with the main switch 10, and the main switch 10 is connected with the input end of the relay 8. When the mercury positioner 6 is triggered to conduct, the main switch 10 is actuated, and then the relay 8 is controlled, and finally the roller shutter machine 9 is stopped from working.

[0055] In summary, the diameter detection assembly 4 is provided with the infrared emitter-receiver device 43 installed on both sides of the top of the greenhouse frame 1, when the diameter of the thermal insulation 3 is rolled up to block the infrared rays, the signal is transmitted to the controller 7, the roller shutter machine 9 is stopped from rolling up by the relay 8, the anti-rollover assembly 5 is provided with two pedal switches connected in series installed on the top of the greenhouse frame 1 on the side where the thermal insulation 3 is not covered, when the thermal insulation 3 is unrolled to press the switches, the signal makes the relay 8 act to stop the roller shutter machine 9 from unrolling, the mercury positioner 6 is bonded to the top surface of the thermal insulation 3, the rolling up changes its inclination angle, triggers the internal circuit, and stops the roller shutter machine 9 from working through the main switch 10 and the relay 8, thereby finally preventing the thermal insulation 3 from rolling over due to improper operation of the roller shutter machine 9.

[0056] The above descriptions are only the preferred embodiments of the present application, and are not intended to limit the present application. The present application can have various changes and modifications for those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A device for preventing overturning of a greenhouse insulation blanket, the greenhouse comprising an earthen wall, a greenhouse frame (1), a film layer (2), and an insulation blanket (3), wherein the greenhouse frame (1) is erected on one side of the earthen wall, the film layer (2) covers the top surface of the greenhouse frame (1), and the insulation blanket (3) is rolled up on the film layer (2) by a rolling shutter machine (9), characterized in that: The greenhouse roof is provided with a heat preservation quilt anti-rollover device, which comprises a diameter detection assembly (4), an anti-overturning assembly (5) and a mercury limiter (6); The diameter detection assembly (4) is fixedly installed on the top of the greenhouse frame (1) on both sides, the anti-overturning assembly (5) is installed at the top of the interface between the earth wall and the greenhouse frame (1), and the anti-overturning assembly (5) is arranged at the center of the top surface of the greenhouse frame (1) which is not covered by the heat preservation quilt (3), and the mercury limiter (6) is bonded to the surface of the heat preservation quilt (3).

2. The anti-rollover device for the thermal blanket of the greenhouse according to claim 1, characterized in that: The diameter detection assembly (4) comprises two mounting plates (41) and infrared transceiver devices (43), the infrared transceiver devices (43) are installed on the side walls of the mounting plates (41), the two mounting plates (41) are installed on the top of the greenhouse frame (1) on both sides, and the two infrared transceiver devices (43) are mirror image arranged on the top of the greenhouse frame (1) on both sides and receive infrared signals from each other.

3. The anti-rollover device for the thermal blanket of the greenhouse according to claim 2, characterized in that: The side wall of the mounting plate (41) is provided with an oblong waist groove (42), and the infrared transceiver device (43) is connected with the nut through the oblong waist groove (42) by a screw.

4. The anti-rollover device for the thermal blanket of the greenhouse according to claim 2, characterized in that: The anti-overturning assembly (5) comprises a fixed plate (51), a first pedal switch (52) and a second pedal switch (53), the first pedal switch (52) and the second pedal switch (53) are installed on the top surface of the fixed plate (51), and the fixed plate (51) is fixedly installed on the greenhouse frame (1) below the film layer (2).

5. The anti-rollover device for the thermal blanket of the greenhouse according to claim 4, characterized in that: The first pedal switch (52) and the second pedal switch (53) are installed in front of and behind the top surface of the fixed plate (51) in a staggered manner, and the first pedal switch (52) and the second pedal switch (53) are connected in series.

6. The anti-rollover device for a thermal blanket of a greenhouse according to claim 5, characterized in that: The detection end of the mercury limiter (6) is bonded to the surface of the heat preservation quilt (3) on the top surface of the greenhouse frame (1).

7. The anti-rollover device for the thermal blanket of the greenhouse according to claim 5, characterized in that: The signal transmitting end of the infrared transceiver device (43) and the signal receiving end of the controller (7) are electrically connected through wires, the control end of the controller (7) is electrically connected with the relay (8) through wires, and the output end of the relay (8) is electrically connected with the power supply end of the roller shutter machine (9).

8. The anti-rollover device for a thermal blanket of a greenhouse according to claim 7, characterized in that: The output ends of the first pedal switch (52) and the second pedal switch (53) connected in series are electrically connected with the input end of the relay (8) through wires.

9. The anti-rollover device for a thermal blanket of a greenhouse according to claim 8, characterized in that: The mercury limiter (6) is electrically connected with the total switch (10) through wires, and the total switch (10) is electrically connected with the input end of the relay (8).

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