A greenhouse snow removing device

Abstract

The application relates to a greenhouse snow removing device and relates to the technical field of greenhouse snow removing.The greenhouse snow removing device comprises a support frame, a snow blocking assembly, a pushing and turning assembly and a resetting assembly, the support frame is arranged at a greenhouse film of a greenhouse, at least two groups of the snow blocking assembly are sequentially arranged from top to bottom and are arranged on the support frame, the snow blocking assembly comprises a first flexible piece and a snow blocking frame, the first flexible piece is arranged on the snow blocking frame, and the bottom end of the snow blocking frame is hinged to the support frame; the pushing and turning assembly comprises a pushing and turning block and a pushing and turning part, the pushing and turning block is slidingly arranged in a sliding groove arranged in the support frame, the pushing and turning part is used for driving the pushing and turning block to reciprocatingly slide in the sliding groove, and the pushing and turning block can drive each snow blocking frame to turn over in sequence when sliding downwards; at least one group of the resetting assembly is arranged, the resetting assembly is arranged between two adjacent snow blocking frames, and the resetting assembly is used for stably resetting the upper snow blocking frame after turning outwards; and the lowermost snow blocking frame is elastically reset. The application improves the snow removing effect of the greenhouse.

Description

Technical Field

[0001] This application relates to the technical field of greenhouse snow removal, and in particular to a greenhouse snow removal device. Background Technology

[0002] Greenhouses enable plants to be grown during the cold winter months, providing people with fresh vegetables for daily life, and have therefore been widely adopted. However, since greenhouses are primarily designed to withstand the cold winter weather, snow removal after snowfall becomes a major challenge for growers.

[0003] Chinese patent CN115522692A discloses an automatic snow removal device for greenhouses, which includes a railcar, a traveling track, an arc-shaped track, a snow removal rod, and a drive mechanism. The railcar and the traveling track can drive the arc-shaped track and the snow removal rod to move along the length of the greenhouse. The drive mechanism can drive the snow removal rod to slide back and forth along the arc-shaped track. During the sliding process, the snow removal rod can push the snow on the greenhouse to slide off, thereby realizing the snow removal of the greenhouse.

[0004] In the above solution, although the snowplow can push the snow off, the distance between the curved track and the greenhouse makes it difficult for the snowplow to fit the greenhouse surface to remove snow. As a result, snow will still remain in the greenhouse after snow removal, thus reducing the snow removal effect of the greenhouse. Summary of the Invention

[0005] To improve the snow removal effect of greenhouses, this application provides a greenhouse snow removal device.

[0006] This application provides a greenhouse snow removal device, which adopts the following technical solution:

[0007] A greenhouse snow removal device includes a support frame, a snow-blocking component, a pushing and turning component, and a resetting component. The support frame is erected on the greenhouse film. At least two sets of snow-blocking components are arranged from top to bottom and are used to cover the support frame. The snow-blocking component includes a first flexible member and a snow-blocking frame. The first flexible member is arranged on the snow-blocking frame, and the bottom end of the snow-blocking frame is hinged to the support frame.

[0008] The push-rotating assembly includes a push-rotating block and a push-rotating part. The push-rotating block is slidably disposed in a slide track opened on the support frame. The push-rotating part is used to drive the push-rotating block to slide back and forth in the slide track. Part of the push-rotating block is exposed outside the slide track. When sliding down, the exposed part of the push-rotating block can drive each snow-blocking frame to flip in sequence.

[0009] The reset component is provided in at least one set and is located between two adjacent snow-blocking frames. The reset component is used to restrict the upper snow-blocking frame from flipping outward in one direction and to drive the upper snow-blocking frame to reset when the lower snow-blocking frame flips outward.

[0010] The bottom snow-blocking frame springs back to its original position.

[0011] Optionally, the rotating part includes a winch and a rotating rope. The winch is mounted on a support frame, and the rotating rope is threaded through the rotating block. Both ends of the rotating rope are connected and wound around the output shaft of the winch.

[0012] Optionally, the slide is provided with a clearance section corresponding to the part between two adjacent snow-blocking frames. The clearance section is used to allow the push block to slide over the hinge position between the snow-blocking frame and the support frame.

[0013] Optionally, the reset assembly includes a rack, a gear, and a one-way portion. The rack is connected to the lower snow-blocking frame, the gear is connected to the upper snow-blocking frame through the one-way portion, the rack is used to mesh with the gear, and the one-way portion is used to restrict the gear from rotating in one direction relative to the snow-blocking frame.

[0014] Optionally, the gear is rotatably connected to the snow-blocking frame. The one-way part includes a ratchet, a pawl, and a spring. The ratchet is connected to the snow-blocking frame and is coaxially arranged with the gear. The pawl is rotatably connected to the gear. The spring is arranged between the pawl and the gear. The spring is used to drive the pawl's pawl head to engage in the tooth groove of the ratchet.

[0015] Optionally, one end of the first flexible member is connected to a take-up shaft, the first flexible member is wound around the take-up shaft, the take-up shaft elastically winds up the first flexible member, and the other end of the first flexible member is connected to a pull rod, the pull rod is slidably disposed on the snow shield frame, and the take-up shaft and the pull rod cooperate to unfold the first flexible member on the snow shield frame.

[0016] Optionally, the winding shaft is rotatably connected to the support frame, and a coil spring is provided between the winding shaft and the support frame. The coil spring is used to drive the winding shaft to elastically wind up the first flexible member. A guide rod is connected to the top of the snow-blocking frame, and the first flexible member passes through the snow-blocking frame and rests on the guide rod.

[0017] Optionally, a pull rope is connected to the pull rod, and the other end of the pull rope is used to tie it to the support frame.

[0018] Optionally, an auxiliary assembly is provided between two adjacent snow-blocking frames. The auxiliary assembly includes a second flexible member and a one-way support bar. The second flexible member is disposed between two adjacent snow-blocking frames. Two one-way support bars are provided and are respectively connected to the two ends of the second flexible member. The one-way support bars are connected to the lower snow-blocking frame and are used to restrict the second flexible member from bending unidirectionally away from the snow-blocking frame.

[0019] Optionally, the unidirectional support bar includes a plurality of support short bars that are hinged end to end. One end of the unidirectional support bar is connected to the snow shield frame below. Each pair of adjacent support short bars has a limiting plane on the side of the hinge closest to the snow shield frame. The limiting plane is used to restrict the unidirectional support bar from bending unidirectionally away from the snow shield frame.

[0020] In summary, this application includes at least one of the following beneficial technical effects:

[0021] This application discloses a greenhouse snow removal device comprising a support frame, a snow-blocking component, a pushing and rotating component, and a resetting component. The first flexible component, when unfolded, prevents snow from falling onto the greenhouse film or blankets. After snowfall, the pushing and rotating block slides within a track under the drive of a winch. The sliding pushing and rotating block drives each snow-blocking frame outwards sequentially from top to bottom. When the snow-blocking frame outwards, it pushes off the accumulated snow, allowing it to slide onto the ground. Between adjacent snow-blocking frames, through the unidirectional transmission of ratchet and pawl, the upper snow-blocking frame is less likely to automatically reverse and reset after being outwards, while the lower snow-blocking frame, when outwards, can drive the upper snow-blocking frame to reverse and reset, making the first flexible component less prone to damage. The lowest snow-blocking frame, with the cooperation of the pushing and rotating block and the coil spring, can also stably reset without easily damaging the first flexible component. This makes it easy and quick to remove snow from the greenhouse, and the snow is less likely to remain after removal, improving the snow removal effect of the greenhouse. Attached Figure Description

[0022] Figure 1 This is a structural schematic diagram of an embodiment of this application;

[0023] Figure 2 This is a schematic diagram of the push-rotation component;

[0024] Figure 3 This is a schematic diagram of the reset assembly;

[0025] Figure 4 This is a structural diagram of the snow-blocking component;

[0026] Figure 5 This is a schematic diagram of the coil spring structure;

[0027] Figure 6 This is a structural schematic diagram of a unidirectional support bar.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Support frame; 11. Slide track; 111. Yielding section; 112. Fixed pulley; 2. Snow-blocking assembly; 21. First flexible component; 22. Snow-blocking frame; 23. Winding shaft; 24. Pull rod; 25. Coil spring; 26. Guide rod; 27. Pull rope; 3. Push-rotating assembly; 31. Push-rotating block; 32. Push-rotating part; 321. Winch; 322. Push-rotating rope; 4. Reset assembly; 41. Rack; 42. Gear; 43. One-way part; 431. Ratchet; 432. Pawl; 433. Spring; 5. Auxiliary assembly; 51. Second flexible component; 52. One-way support bar; 521. Support bar; 522. Limiting plane. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0031] This application discloses a snow removal device for greenhouses. (Refer to...) Figure 1 and Figure 2 A greenhouse snow removal device includes a support frame 1, a snow-blocking component 2, a pushing and rotating component 3, and a resetting component 4.

[0032] Reference Figure 1 The support frame 1 is erected on the greenhouse film. Four sets of snow-blocking components 2 are arranged from top to bottom and are used to cover the support frame 1. The snow-blocking component 2 includes a first flexible member 21 and a snow-blocking frame 22. The first flexible member 21 is set on the snow-blocking frame 22, and the bottom end of the snow-blocking frame 22 is hinged to the support frame 1. The first flexible member 21 is used to prevent snow from falling onto the greenhouse film. By flipping each snow-blocking frame 22 from top to bottom, the snow can be concentrated and piled on the ground next to the greenhouse.

[0033] In this embodiment, the accumulated snow, after melting and filtration, can be used as drip irrigation water and heat storage water for the solar greenhouse, thus saving water resources. In this embodiment, the first flexible component 21 is a plastic sheet.

[0034] Reference Figure 2 The push-rotating assembly 3 includes a push-rotating block 31 and a push-rotating part 32. The push-rotating block 31 is spherical and is slidably disposed in the slide 11 opened on the support frame 1. The push-rotating part 32 is used to drive the push-rotating block 31 to slide back and forth in the slide 11. Part of the push-rotating block 31 is exposed outside the slide 11. When sliding down, the exposed part of the push-rotating block 31 can drive each snow-blocking frame 22 to flip in sequence.

[0035] In order to improve the stability of the push-rotation component 3 driving the snow-blocking frame 22, in this embodiment, the push-rotation component 3 is provided in two sets, which are located at both ends of the support frame 1 respectively.

[0036] The reset assembly 4 is provided in three sets, and the three sets of reset assemblies 4 are arranged one-to-one between two adjacent snow-blocking frames 22. The reset assembly 4 is used to restrict the upper snow-blocking frame 22 from flipping outward in one direction, so that the snow-blocking frame 22 can drive the first flexible member 21 to remove snow. The reset assembly 4 is used to drive the upper snow-blocking frame 22 to reset when the lower snow-blocking frame 22 flips outward, so that the upper snow-blocking frame 22 can be driven to reset stably after snow removal.

[0037] Among them, the bottom snow-blocking frame 22 elastically resets, and in conjunction with the pushing action of the push block 31, the bottom snow-blocking frame 22 can stably and elastically reset.

[0038] In use, the support frame 1 is erected on the greenhouse film so that the four first flexible parts 21 can cover the greenhouse film, and the snow will fall onto the first flexible parts 21. After snowfall, the push-rotating part 32 can drive the push-rotating block 31 to slide from top to bottom along the slide 11. The exposed part of the push-rotating block 31 relative to the slide 11 can drive each snow-blocking frame 22 to flip outward in one direction. As the four snow-blocking frames 22 flip in sequence from top to bottom, the snow accumulated on the four first flexible parts 21 can be gradually pushed down to the ground from top to bottom, so that snow can be removed quickly and snow is not easily left behind during snow removal.

[0039] Since the snow will fall onto the first flexible member 21, it is not easy for the snow to fall directly onto the greenhouse. Therefore, for greenhouses covered with cotton quilts, this application can not only remove snow quickly and without leaving snow accumulation, but also prevent the snow from wetting the cotton quilts, so that the cotton quilts will not increase in weight and increase the support burden on the greenhouse frame.

[0040] As the push-rotating block 31 gradually approaches the hinge of the snow-blocking frame 22, the angle at which the push-rotating block 31 drives the snow-blocking frame 22 to rotate gradually increases when sliding the same distance. When sliding in the area away from the hinge of the snow-blocking frame 22, the angle at which the push-rotating block 31 drives the snow-blocking frame 22 to rotate is smaller, while when sliding in the area close to the hinge of the snow-blocking frame 22, the angle at which the push-rotating block 31 drives the snow-blocking frame 22 to rotate is larger. This allows the rotation speed of the snow-blocking frame 22 to gradually increase, enabling the snow-blocking frame 22 to rotate slowly at first to allow the snow to slide off first. After some of the snow has slid off, the snow-blocking frame 22 can rotate quickly to allow the remaining snow to slide off quickly. Thus, when the snow accumulation is at its maximum, the snow-blocking frame 22 can remove snow at a slower rotation speed, effectively reducing the probability of damage to the first flexible component 21 during snow removal.

[0041] The reset component 4 enables the upper snow-blocking frame 22 to flip outward normally for snow removal under the drive of the push-rotating block 31. When the push-rotating block 31 slides to the lower snow-blocking frame 22, the upper snow-blocking frame 22 cannot automatically reverse and reset under the restriction of the reset component 4. After the push-rotating block 31 drives the lower snow-blocking frame 22 to flip, the lower snow-blocking frame 22 can drive the upper snow-blocking frame 22 to flip and reset, thereby enabling the snow-blocking frame 22 to be reset stably, making the first flexible member 21 less likely to be damaged when the snow-blocking frame 22 is reset.

[0042] Since the bottom snow-blocking frame 22 can be elastically reset, after the push-rotating block 31 slides down and drives the bottom snow-blocking frame 22 to flip, the push-rotating block 31 will slide up. The sliding push-rotating block 31 and the reset elastic force of the bottom snow-blocking frame 22 cooperate with each other to make the bottom snow-blocking frame 22 stably reset.

[0043] Based on the above analysis, by driving the snow-blocking frame 22 outward one by one by the push-rotating block 31, the snow on the first flexible component 21 can slide down to the ground quickly from top to bottom. The reset component 4 can stably reset the snow-blocking frame 22, reducing the damage rate of the first flexible component 21. Thus, under the snow-blocking and snow-draining functions of the first flexible component 21, the snow removal effect of the greenhouse is improved, making it less likely for snow to remain in the greenhouse after snow removal.

[0044] Specifically, refer to Figure 2 The rotating part 32 includes a winch 321 and a rotating rope 322. The winch 321 is fixedly connected to the bottom end of the support frame 1. The rotating rope 322 is fixedly threaded on the rotating block 31. Both ends of the rotating rope 322 are fixedly connected and wound around the output shaft of the winch 321. When the output shaft of the winch 321 rotates, it can unwind one end of the rotating rope 322 and wind up the other end of the rotating rope 322.

[0045] In order to facilitate the switching of the pulling direction of the push rope 322 at both ends of the slide 11, fixed pulleys 112 are provided at both ends of the slide 11.

[0046] When it is necessary to drive the push block 31 to slide, the output shaft of the winch 321 is rotated, so that one end of the push rope 322 can be wound up and the other end can be unwound. Since the winding and unwinding ends of the push rope 322 can be switched when the output shaft of the winch 321 rotates forward and reverse, the winch 321 can drive the push block 31 to slide up and down through the push rope 322.

[0047] Reference Figure 2In order to facilitate the sliding block 31 to slide along the slide 11 past the hinge position of the snow shield frame 22, a clearance section 111 is provided on the slide 11 at the part between two adjacent snow shield frames 22. The clearance section 111 is used to allow the sliding block 31 to slide past the hinge position between the snow shield frame 22 and the support frame 1.

[0048] By setting the clearance section 111, when the push-rotating block 31 slides along the slide 11 to the hinge position of the snow-blocking frame 22, the push-rotating block 31 can release the pushing force on the snow-blocking frame 22 with the help of the clearance section 111, so that the push-rotating block 31 can smoothly slide along the slide 11 into the next snow-blocking frame 22 between the slide 11, thereby enabling the push-rotating block 31 to drive each snow-blocking frame 22 to flip one by one.

[0049] Specifically, refer to Figure 3 The reset assembly 4 includes a rack 41, a gear 42, and a one-way part 43. The rack 41 is fixed to the lower snow-blocking frame 22, and the gear 42 is connected to the upper snow-blocking frame 22 through the one-way part 43. The rack 41 is used to mesh with the gear 42, and the one-way part 43 is used to restrict the gear 42 from rotating in one direction relative to the snow-blocking frame 22.

[0050] In order to make the reset effect of the reset component 4 more stable, two racks 41, gears 42 and one-way parts 43 are provided, and they are located at both ends of the hinge axis of the snow shield frame 22 respectively.

[0051] When the upper snow-blocking frame 22 flips outward, it can rotate relative to the gear 42 through the one-way part 43. At this time, the gear 42 is stationary due to the meshing action of the rack 41. Since the one-way part 43 can restrict the gear 42 from rotating in one direction relative to the snow-blocking frame 22, it is difficult for the snow-blocking frame 22 to automatically reverse after flipping outward. When the lower snow-blocking frame 22 flips outward, it can drive the rack 41 to move, and the rack 41 can drive the gear 42 to rotate. The upper snow-blocking frame 22 can follow the rotation of the gear 42 to reverse and thus enable the snow-blocking frame 22 to stably return to its original position.

[0052] Furthermore, referring to Figure 3 The one-way part 43 includes a ratchet 431, a pawl 432, and a spring 433.

[0053] Gear 42 is rotatably connected to snow shield frame 22, ratchet 431 is fixedly connected to snow shield frame 22 and coaxially arranged with gear 42, pawl 432 is rotatably connected to gear 42, and spring 433 is fixedly arranged between pawl 432 and gear 42. Spring 433 is used to drive the pawl head of pawl 432 to engage in the tooth groove of ratchet 431.

[0054] Spring 433 drives pawl 432 to engage in the tooth groove of ratchet 431, enabling unidirectional transmission between ratchet 431 and gear 42. When the upper snow-blocking frame 22 flips outward, it drives ratchet 431 to rotate relative to gear 42. When the upper snow-blocking frame 22 flips outward to the preset position, gear 42 will be stationary under the restriction of rack 41. Pawl 432 restricts ratchet 431 from rotating in the opposite direction relative to gear 42, thus enabling the upper snow-blocking frame 22 to rotate unidirectionally relative to gear 42.

[0055] Reference Figure 4 In order to prevent the first flexible component 21 from blocking sunlight from reaching the greenhouse, a winding shaft 23 is fixedly connected to one end of the first flexible component 21. The first flexible component 21 is wound around the winding shaft 23, and the winding shaft 23 elastically winds up the first flexible component 21. A pull rod 24 is fixedly connected to the other end of the first flexible component 21. The pull rod 24 is slidably set on the snow-blocking frame 22. The winding shaft 23 and the pull rod 24 cooperate to make the first flexible component 21 unfold on the snow-blocking frame 22.

[0056] Since the winding shaft 23 can elastically wind up the first flexible member 21, when snow needs to be blocked, external force can be used to move the winding shaft 23 away from the pull rod 24, so that the first flexible member 21 can be unfolded on the snow-blocking frame 22 to block snow; after snow removal, the winding shaft 23 can be brought close to the pull rod 24, and the winding shaft 23 can automatically wind up the first flexible member 21 with elastic force, so that the first flexible member 21 is less likely to block sunlight, thereby improving the flexibility of the snow removal device.

[0057] Furthermore, referring to Figure 4 and Figure 5 To prevent the snow-blocking frame 22 from accidentally flipping over due to wind, the winding shaft 23 is rotatably connected to the support frame 1. A coil spring 25 is fixed between the winding shaft 23 and the support frame 1. The coil spring 25 is used to drive the winding shaft 23 to elastically wind up the first flexible member 21. A guide rod 26 is fixedly connected to the top of the snow-blocking frame 22. The first flexible member 21 slides through the snow-blocking frame 22 and rests on the guide rod 26.

[0058] When snow needs to be blocked, the sliding pull rod 24 slides down, which pulls the first flexible member 21 to unwind from the winding shaft 23. Under the guidance of the guide rod 26, the first flexible member 21 can unfold onto the snow-blocking frame 22, allowing it to block snow. When snow removal is needed, the snow-blocking frame 22 flips outward, and it continues to unwind the first flexible member 21 from the winding shaft 23. At this time, the first flexible member 21 can prevent the snow above from sliding down between the snow-blocking frame 22 and the greenhouse film, thus improving the snow removal effect of the snow removal device.

[0059] When the snow-blocking frame 22 flips back to its original position, under the elastic force of the coil spring 25, the winding shaft 23 can apply a resetting pulling force to the snow-blocking frame 22 through the first flexible member 21, making the resetting of the snow-blocking frame 22 more stable. For the bottom snow-blocking frame 22, the elastic force of the coil spring 25 can make the bottom snow-blocking frame 22 elastically reset, so that the bottom snow-blocking frame 22 does not need to be set with a separate elastic reset structure. When the snow-blocking frame 22 is placed on the support frame 1, the elastic force of the coil spring 25 can be applied to the snow-blocking frame 22 through the first flexible member 21, making the snow-blocking frame 22 less likely to flip outward on its own under the wind, thus improving the stability of the snow-blocking frame 22 when flipping.

[0060] Furthermore, referring to Figure 1 and Figure 4 In order to facilitate the downward movement of the pull rod 24, a pull rope 27 is fixedly connected to the pull rod 24, and the other end of the pull rope 27 is used to tie to the support frame 1. The pull rope 27 enables the planting personnel to pull the pull rod 24 downward on the ground, and tying the pull rope 27 to the support frame 1 makes it easier to fix the position of the pull rod 24 after it has slid down.

[0061] In this embodiment, refer to Figure 4 The pull rope 27 is slidably threaded on the snow-blocking frame 22 and extends out from the side of the snow-blocking frame 22, so that the planter can pull the pull rope 27 from the side of the supporting frame 1. The pull rope 27 is an elastic rope, and its elastic modulus is greater than that of the coil spring 25. That is, the pull rope 27 can pull the pull rod 24 to slide while maintaining its own elastic deformation, and allow the coil spring 25 to accumulate elasticity. On the one hand, the pull rope 27 with elastic deformation ability makes the snow-blocking frame 22 less likely to flip over on its own under the wind, further improving the stability of the snow-blocking frame 22 when it flips. On the other hand, the pull rope 27 with elastic deformation ability does not easily restrict the push block 31 from driving the snow-blocking frame 22 to flip.

[0062] Reference Figure 2 In order to improve the snow removal effect of the snow-blocking component 2, an auxiliary snow removal component 5 is provided between each of the two adjacent snow-blocking frames 22. The auxiliary snow removal component 5 includes a second flexible component 51 and a one-way support bar 52.

[0063] The second flexible member 51 is disposed between two adjacent snow-blocking frames 22. Two one-way support bars 52 are provided and are respectively connected to the two ends of the second flexible member 51. The one-way support bars 52 are connected to the lower snow-blocking frame 22. The one-way support bars 52 are used to restrict the second flexible member 51 from bending in one direction away from the snow-blocking frame 22.

[0064] In this embodiment, the second flexible element 51 is a flexible rubber sheet.

[0065] Under the unidirectional support of the unidirectional support bar 52, on the one hand, the second flexible member 51 can bend as the upper snow-blocking frame 22 flips outward, and on the other hand, the second flexible member 51 can push the snow to slide down as the lower snow-blocking frame 22 flips outward, making it easier to clear the snow between two adjacent snow-blocking frames 22 and improving the snow removal effect of the snow-blocking component 2.

[0066] Furthermore, referring to Figure 6 The unidirectional support bar 52 includes multiple support short bars 521 that are hinged together end to end.

[0067] Reference Figure 2 and Figure 6 One end of the unidirectional support bar 52 has a support bar 521 bolted to the snow shield frame 22 below. Each of the two adjacent support bars 521 has a limiting plane 522 on the side of the hinge closest to the snow shield frame 22. The limiting plane 522 is used to limit the unidirectional support bar 52 from bending in one direction away from the snow shield frame 22.

[0068] In order to prevent the support strip 521 from interfering with the snow shield frame 22 when it is turned outward, the support strip 521 is chamfered at the hinge; the second flexible member 51 is fixedly connected to each support strip 521.

[0069] When the upper snow-blocking frame 22 is flipped outward, the two adjacent support strips 521 can rotate relative to each other, so that the second flexible member 51 can bend with the upper snow-blocking frame 22; when the lower snow-blocking frame 22 is flipped outward, the two adjacent support strips 521 are difficult to rotate relative to each other under the restriction of the limiting plane 522, so that the second flexible member 51 can push the snow to slide down with the lower snow-blocking frame 22.

[0070] The implementation principle of a greenhouse snow removal device according to an embodiment of this application is as follows: In use, the pulling rod 24 is lowered by the pulling rope 27, and the first flexible part 21 is unfolded on the snow-blocking frame 22. After snowfall, the winch 321 is started. The winch 321 drives the push block 31 to slide down through the push rope 322. When the push block 31 slides down, it drives the snow-blocking frame 22 to flip outward one by one, so that the snow can slide down from top to bottom and fall to the ground. The lower snow-blocking frame 22 can drive the upper snow-blocking frame 22 to return to its stable position through the rack 41 and gear 42. The lowest snow-blocking frame 22 can return to its stable position with the cooperation of the push block 31 and the coil spring 25, so that the snow in the greenhouse can be quickly removed and there is not much snow left after removal, thus improving the snow removal effect of the greenhouse.

[0071] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A greenhouse snow removal device, characterized in that: It includes a support frame (1), a snow-blocking component (2), a push-turn component (3) and a reset component (4). The support frame (1) is built on the greenhouse film. The snow-blocking component (2) is arranged in at least two sets from top to bottom and is used to cover the support frame (1). The snow-blocking component (2) includes a first flexible member (21) and a snow-blocking frame (22). The first flexible member (21) is set on the snow-blocking frame (22), and the bottom end of the snow-blocking frame (22) is hinged to the support frame (1). The push-turn assembly (3) includes a push-turn block (31) and a push-turn part (32). The push-turn block (31) is slidably disposed in the slide (11) opened on the support frame (1). The push-turn part (32) is used to drive the push-turn block (31) to slide back and forth in the slide (11). Part of the push-turn block (31) is exposed outside the slide (11). When the exposed part of the push-turn block (31) slides down, it can drive each snow shield frame (22) to flip in sequence. The reset component (4) is provided in at least one set. The reset component (4) is provided between two adjacent snow-blocking frames (22). The reset component (4) is used to restrict the upper snow-blocking frame (22) from flipping outward in one direction. The reset component (4) is used to drive the upper snow-blocking frame (22) to reset when the lower snow-blocking frame (22) flips outward. Among them, the bottom snow-blocking frame (22) is elastically reset; The reset assembly (4) includes a rack (41), a gear (42), and a one-way part (43). The rack (41) is connected to the lower snow-blocking frame (22), and the gear (42) is connected to the upper snow-blocking frame (22) through the one-way part (43). The rack (41) is used to mesh with the gear (42), and the one-way part (43) is used to restrict the gear (42) from rotating in one direction relative to the snow-blocking frame (22). The gear (42) is rotatably connected to the snow shield frame (22). The one-way part (43) includes a ratchet (431), a pawl (432), and a spring (433). The ratchet (431) is connected to the snow shield frame (22) and is coaxially arranged with the gear (42). The pawl (432) is rotatably connected to the gear (42). The spring (433) is arranged between the pawl (432) and the gear (42). The spring (433) is used to drive the pawl (432) to engage in the tooth groove of the ratchet (431).

2. The greenhouse snow removal device according to claim 1, characterized in that: The push-rotating part (32) includes a winch (321) and a push-rotating rope (322). The winch (321) is mounted on the support frame (1), and the push-rotating rope (322) is threaded on the push-rotating block (31). Both ends of the push-rotating rope (322) are connected to and wound around the output shaft of the winch (321).

3. A greenhouse snow removal device according to claim 1, characterized in that: The slide (11) is provided with a clearance section (111) corresponding to the part between two adjacent snow-blocking frames (22). The clearance section (111) is used to allow the push block (31) to slide over the hinge position between the snow-blocking frame (22) and the support frame (1).

4. A greenhouse snow removal device according to claim 1, characterized in that: One end of the first flexible member (21) is connected to a take-up shaft (23), the first flexible member (21) is wound around the take-up shaft (23), the take-up shaft (23) elastically winds up the first flexible member (21), the other end of the first flexible member (21) is connected to a pull rod (24), the pull rod (24) is slidably disposed on the snow shield frame (22), the take-up shaft (23) and the pull rod (24) cooperate to make the first flexible member (21) unfold on the snow shield frame (22).

5. A greenhouse snow removal device according to claim 4, characterized in that: The winding shaft (23) is rotatably connected to the support frame (1). A coil spring (25) is provided between the winding shaft (23) and the support frame (1). The coil spring (25) is used to drive the winding shaft (23) to elastically wind up the first flexible member (21). A guide rod (26) is connected to the top of the snow-blocking frame (22). The first flexible member (21) passes through the snow-blocking frame (22) and rests on the guide rod (26).

6. A greenhouse snow removal device according to claim 5, characterized in that: The pull rod (24) is connected to a pull rope (27), and the other end of the pull rope (27) is used to tie it to the support frame (1).

7. A greenhouse snow removal device according to claim 1, characterized in that: An auxiliary assembly (5) is provided between two adjacent snow-blocking frames (22). The auxiliary assembly (5) includes a second flexible member (51) and a one-way support strip (52). The second flexible member (51) covers the two adjacent snow-blocking frames (22). There are two one-way support strips (52), which are respectively connected to the two ends of the second flexible member (51). The one-way support strips (52) are connected to the lower snow-blocking frame (22). The one-way support strips (52) are used to restrict the second flexible member (51) from bending unidirectionally away from the snow-blocking frame (22).

8. A greenhouse snow removal device according to claim 7, characterized in that: The unidirectional support bar (52) includes a plurality of support short bars (521) that are hinged together end to end. One end of the support short bar (521) of the unidirectional support bar (52) is connected to the snow shield frame (22) below. Each of the two adjacent support short bars (521) is provided with a limiting plane (522) on the side of the hinge near the snow shield frame (22). The limiting plane (522) is used to limit the unidirectional support bar (52) from bending in one direction away from the snow shield frame (22).

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