Thermal insulation device of plastic greenhouse

Abstract

The utility model relates to the technical field of plastic greenhouses, and discloses a plastic greenhouse heat preservation device which comprises a plastic greenhouse, a blind is fixedly connected to the front face of the plastic greenhouse, a pushing and unfolding heat preservation mechanism is arranged outside the plastic greenhouse, and a heating mechanism is arranged on the inner side of the back of the plastic greenhouse. Through the arrangement of the pushing unfolding heat preservation mechanism, the motor is started, the motor drives the screw rod to rotate, in the moving process of the sliding rod, due to the limitation of the arc-shaped sliding groove, the sliding rod moves along the guide of the arc-shaped sliding groove, meanwhile, the heat preservation cloth is synchronously pulled to move in the moving process of the screw rod and the moving process of the sliding rod, and then the heat preservation cloth is automatically opened; the thermal insulation cloth can be quickly and completely spread in the process of laying the thermal insulation cloth, so that the work complexity of workers is reduced, the time required for laying is shortened, the work efficiency is improved, and the thermal insulation cloth can be quickly laid and rolled in the later period.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of plastic greenhouse, concretely is a kind of plastic greenhouse's heat preservation device. BACKGROUND

[0002] Plastic greenhouse plays an important role in agricultural production, and it has low construction cost, fast construction speed and high land utilization rate, which is suitable for climate regions in north and south China. However, the heat preservation performance of plastic greenhouse is relatively low, especially in winter in the north, its heat preservation capacity often cannot meet the needs of crop growth, which restricts its application in winter cultivation, and the traditional heat preservation measures of plastic greenhouse mainly rely on covering materials such as straw mat and thermal blanket. Although these materials can improve the heat preservation performance of the greenhouse to some extent, they have many limitations.

[0003] In the prior art, the plastic greenhouse heat preservation device is manually laid with thermal blanket in the plastic greenhouse, which reduces the heat loss in the plastic greenhouse through the thermal blanket. Then when heating is needed, the hot blast furnace is started, and the hot air generated by the hot blast furnace is transported to the inside of the plastic greenhouse by the air inlet fan for heating treatment. However, in actual use, due to the large size of the plastic greenhouse, the thermal blanket cannot be completely unfolded quickly during manual laying, which increases the work complexity of the workers, increases the time required for laying, and reduces the work efficiency. Therefore, it is necessary to improve a plastic greenhouse heat preservation device. SUMMARY

[0004] The utility model aims at providing a plastic greenhouse heat preservation device to solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a plastic greenhouse heat preservation device, comprising a plastic greenhouse, the front surface of the plastic greenhouse is fixedly connected with a curtain, the outside of the plastic greenhouse is provided with a pushing and unfolding heat preservation mechanism, the inside of the back of the plastic greenhouse is provided with a heating mechanism, the inside of the top of the plastic greenhouse is fixedly connected with a support;

[0006] The pushing and unfolding heat preservation mechanism comprises a pushing assembly and an unfolding heat preservation assembly, the unfolding heat preservation assembly is arranged on the left side of the pushing assembly.

[0007] The pushing assembly comprises a support frame, the support frame is fixedly connected at the left and right sides of the plastic greenhouse, a motor one is fixedly connected at the left side of the support frame, a screw rod is fixedly connected at the output end of the motor one, a moving block is threadedly connected outside the screw rod, a slide column is fixedly connected at the bottom of the moving block, a slide sleeve is slidably connected outside the slide column, a slide rod is rotatably connected at the back of the slide sleeve, an arc-shaped sliding groove is fixedly connected at the top of the support frame, and a limiting frame is fixedly connected at the top of the support frame, so that the heat preservation cloth can be conveniently pulled to be unfolded.

[0008] Preferably, grooves are formed at the corresponding positions of the limiting frame and the moving block, and the moving block is slidably connected in the groove, so that the movement of the moving block is limited.

[0009] Preferably, grooves are formed at the corresponding positions of the arc-shaped sliding groove and the slide rod, and the slide rod is slidably connected in the groove, so that the movement of the slide rod is limited.

[0010] Preferably, the unfolding heat preservation assembly comprises a heat preservation frame, the heat preservation frame is fixedly connected at the left side of the plastic greenhouse, a winding roller is rotatably connected inside the heat preservation frame, a heat preservation cloth is wound outside the winding roller, a first bevel gear is fixedly connected at the front of the winding roller, a second bevel gear is engaged at the bottom of the first bevel gear, a rotating shaft is fixedly connected at the top of the second bevel gear, a third bevel gear is fixedly connected at the top of the rotating shaft, and a fourth bevel gear is engaged at the right side of the third bevel gear, so that the heat preservation cloth can be conveniently wound later.

[0011] Preferably, the second bevel gear is rotatably connected at the inner side of the bottom of the support frame, the third bevel gear is rotatably connected inside the support frame, the fourth bevel gear is fixedly connected outside the screw rod, and the right end of the heat preservation cloth is fixedly connected at the bottom of the slide rod, so that the winding roller can be driven to rotate synchronously.

[0012] Preferably, the temperature rising mechanism comprises a hot blast furnace, the hot blast furnace is fixedly connected at the inner side of the back of the plastic greenhouse, an air inlet fan is fixedly connected at the top of the hot blast furnace, an air outlet pipe is fixedly connected at the front of the air inlet fan, and a connecting column is fixedly connected at the top of the air outlet pipe, so that the temperature inside the plastic greenhouse can be increased according to requirements.

[0013] Preferably, grooves are formed at the corresponding positions of the plastic greenhouse and the connecting column, and the connecting column is fixedly connected in the groove, so that the air outlet pipe can be fixed.

[0014] Compared with the prior art, the heat preservation device of the plastic greenhouse has the following beneficial effects:

[0015] 1. The heat preservation device of the plastic greenhouse, by setting the push to expand the heat preservation mechanism, the motor is started, the screw rod is driven by the motor to rotate, so that the slide rod moves in the process, due to the limitation of the arc-shaped chute, and then moves along the arc-shaped chute guide, at the same time, the heat preservation cloth is pulled synchronously in the process of moving with the slide rod in the process of moving, and then the heat preservation cloth is automatically opened, so that it is attached to the outside of the plastic greenhouse, the heat preservation effect is realized, and the heat preservation cloth can be quickly and completely expanded during the laying process, thereby reducing the tediousness of the staff, reducing the time required for laying, thereby improving the work efficiency, and quickly completing the rapid laying and later winding of the heat preservation cloth.

[0016] 2. The heat preservation device of the plastic greenhouse, by setting the temperature rising mechanism, when the temperature in the plastic greenhouse needs to be raised, the hot blast furnace is started, hot air is generated by the hot blast furnace, and the hot air is transported to the inside of the air outlet pipe by the air inlet fan, and the hot air is uniformly transported to the inside of the heat preservation greenhouse through the air outlet holes on the left and right sides of the air outlet pipe, so as to further ensure the stability of the temperature in the plastic greenhouse, and avoid affecting the daily growth of crops. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained according to these drawings without creative labor for those skilled in the art:

[0018] Figure 1 It is the appearance structure diagram of the present application;

[0019] Figure 2 It is the front view structure diagram of the present application;

[0020] Figure 3 It is the appearance structure diagram of the push to expand the heat preservation mechanism of the present application;

[0021] Figure 4 It is the expansion structure diagram of the push assembly of the present application;

[0022] Figure 5 It is the expansion structure diagram of the expansion heat preservation assembly of the present application;

[0023] Figure 6 It is the appearance structure diagram of the temperature rising mechanism of the present application.

[0024] In the figure: 1, plastic greenhouse; 2, curtain; 3, push to expand the heat preservation mechanism; 4, temperature rising mechanism; 5, support; 31, push assembly; 32, expand heat preservation assembly; 311, support frame; 312, motor one; 313, screw rod; 314, moving block; 315, slide column; 316, slide sleeve; 317, arc-shaped sliding groove; 318, slide rod; 319, limiting frame; 321, heat preservation frame; 322, winding roller; 323, heat preservation cloth; 324, No. 1 bevel gear; 325, No. 2 bevel gear; 326, rotating shaft; 327, No. 3 bevel gear; 328, No. 4 bevel gear; 41, hot blast furnace; 42, air inlet fan; 43, air outlet pipe; 44, connecting column. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0026] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0027] Embodiment one:

[0028] Based on the prior art existing at present, due to the large volume of the plastic greenhouse, and in the process of manually laying the heat preservation cloth, the heat preservation cloth cannot be completely expanded quickly, which easily increases the work complexity of the workers, increases the laying time, and reduces the work efficiency, and cannot quickly complete the rapid laying and later winding of the heat preservation cloth, please refer to Figures 1-6 The present application provides a technical scheme: a heat preservation device for a plastic greenhouse, which comprises a plastic greenhouse 1, a curtain 2 fixedly connected to the front of the plastic greenhouse 1, a push-to-expand heat preservation mechanism 3 arranged outside the plastic greenhouse 1, a temperature rising mechanism 4 arranged on the inner side of the back of the plastic greenhouse 1, and a support 5 fixedly connected to the inner side of the top of the plastic greenhouse 1.

[0029] The push-to-expand heat preservation mechanism 3 comprises a push assembly 31 and an expand heat preservation assembly 32, and the expand heat preservation assembly 32 is arranged on the left side of the push assembly 31.

[0030] The pushing assembly 31 comprises a support frame 311 fixedly connected to the left and right sides of the plastic greenhouse 1, a motor one 312 fixedly connected to the left side of the support frame 311, a screw rod 313 fixedly connected to the output end of the motor one 312, a moving block 314 threadedly connected to the outside of the screw rod 313, a sliding column 315 fixedly connected to the bottom of the moving block 314, a sliding sleeve 316 slidingly connected to the outside of the sliding column 315, a sliding rod 318 rotatably connected to the back of the sliding sleeve 316, an arc-shaped sliding groove 317 fixedly connected to the top of the support frame 311, and a limiting frame 319 fixedly connected to the top of the support frame 311, so as to facilitate the expansion of the thermal blanket 323.

[0031] Further, a groove is formed at the corresponding position of the limiting frame 319 and the moving block 314, and the moving block 314 is slidingly connected in the groove, so as to facilitate the movement of the moving block 314.

[0032] Further, a groove is formed at the corresponding position of the arc-shaped sliding groove 317 and the sliding rod 318, and the sliding rod 318 is slidingly connected in the groove, so as to facilitate the movement of the sliding rod 318.

[0033] Further, the expansion thermal assembly 32 comprises a thermal frame 321 fixedly connected to the left side of the plastic greenhouse 1, a winding roller 322 rotatably connected to the inside of the thermal frame 321, a thermal blanket 323 wound on the outside of the winding roller 322, a first bevel gear 324 fixedly connected to the front of the winding roller 322, a second bevel gear 325 engaged with the bottom of the first bevel gear 324, a rotating shaft 326 fixedly connected to the top of the second bevel gear 325, a third bevel gear 327 fixedly connected to the top of the rotating shaft 326, and a fourth bevel gear 328 engaged with the right side of the third bevel gear 327, so as to facilitate the winding of the thermal blanket 323 in the later stage.

[0034] Further, the second bevel gear 325 is rotatably connected to the inside of the bottom of the support frame 311, the third bevel gear 327 is rotatably connected to the inside of the support frame 311, the fourth bevel gear 328 is fixedly connected to the outside of the screw rod 313, and the right end of the thermal blanket 323 is fixedly connected to the bottom of the sliding rod 318, so as to facilitate the synchronous rotation of the winding roller 322.

[0035] Example two:

[0036] Based on the existing prior art for adjusting the internal temperature, please refer to Figure 6 , and combined with example one, it is further obtained that the second bevel gear 325 is rotatably connected to the inside of the bottom of the support frame 311, the third bevel gear 327 is rotatably connected to the inside of the support frame 311, the fourth bevel gear 328 is fixedly connected to the outside of the screw rod 313, and the right end of the thermal blanket 323 is fixedly connected to the bottom of the sliding rod 318, so as to facilitate the synchronous rotation of the winding roller 322.

[0037] Further, the plastic greenhouse 1 is provided with a groove at the position corresponding to the connecting column 44, and the connecting column 44 is fixedly connected in the groove, so as to facilitate the fixation of the air outlet pipe 43.

[0038] In actual operation, when the device is used, first, when the plastic greenhouse 1 needs to be heat-insulated in the low-temperature weather during the daily use, the heat-insulating mechanism 3 is pushed to start the motor, the screw rod 313 is driven to rotate by the motor, the moving block 314 is driven to move by the screw rod 313, the slide column 315 is driven to move synchronously by the moving block 314, the slide sleeve 316 is driven to move by the slide column 315, the slide rod 318 is driven to move synchronously by the slide sleeve 316, the slide rod 318 is driven to move along the arc-shaped sliding groove 317 due to the limitation of the arc-shaped sliding groove 317, the fourth bevel gear 328 is driven to rotate synchronously by the screw rod 313, the third bevel gear 327 is driven to rotate by the fourth bevel gear 328, the rotating shaft 326 is driven to rotate by the third bevel gear 327, the second bevel gear 325 is driven to rotate synchronously by the rotating shaft 326, the first bevel gear 324 is driven to rotate by the second bevel gear 325, the winding roller 322 is driven to rotate synchronously by the first bevel gear 324, the heat-insulating cloth 323 is driven to rotate and expand by the winding roller 322, the slide rod 318 is driven to move synchronously by the heat-insulating cloth 323, the heat-insulating cloth 323 is automatically opened, the heat-insulating cloth 323 is attached to the outside of the plastic greenhouse 1, the heat-insulating effect is realized, the temperature inside the plastic greenhouse 1 needs to be raised, the heating mechanism 4 is started, the hot blast furnace 41 generates hot air, the hot air is transported to the air outlet pipe 43 by the air inlet fan 42, and the hot air is uniformly transported to the inside of the heat-insulating greenhouse by the air outlets on the left and right sides of the air outlet pipe 43.

[0039] It should be noted that, in the present document, the terms such as first and second, etc., are merely used to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations, the element defined by the statement "including a" does not exclude the presence of another identical element in the process, method, article or equipment including the element.

Claims

1. A heat retaining device for a plastic greenhouse, comprising a plastic greenhouse (1), characterized in that: The plastic greenhouse (1) front fixedly connected with curtain (2), the plastic greenhouse (1) outside is provided with push open thermal insulation mechanism (3), the plastic greenhouse (1) back inside is provided with heating mechanism (4), the plastic greenhouse (1) top inside fixedly connected with support (5); The push open thermal insulation mechanism (3) includes push assembly (31) and expansion thermal insulation assembly (32), the expansion thermal insulation assembly (32) is arranged in push assembly (31) left side; The push assembly (31) includes support frame (311), the support frame (311) is fixedly connected on the left and right sides of the plastic greenhouse (1), the support frame (311) left side is fixedly connected with motor one (312), the motor one (312) output end is fixedly connected with screw rod (313), the screw rod (313) outside is threadedly connected with moving block (314), the moving block (314) bottom is fixedly connected with slide column (315), the slide column (315) outside is slidably connected with slide sleeve (316), the slide sleeve (316) back is rotatably connected with slide rod (318), the support frame (311) top is fixedly connected with arc-shaped sliding groove (317), the support frame (311) top is fixedly connected with limiting frame (319).

2. The heat retaining device for a plastic greenhouse according to claim 1, wherein: The limiting frame (319) and moving block (314) corresponding position is provided with slot, and the moving block (314) is slidably connected in the slot.

3. The heat retaining device for a plastic greenhouse according to claim 1, wherein: The arc-shaped sliding groove (317) and slide rod (318) corresponding position is provided with slot, and the slide rod (318) is slidably connected in the slot.

4. The heat retaining device for plastic greenhouse according to claim 1, characterized in that: The expansion thermal insulation assembly (32) includes thermal insulation frame (321), the thermal insulation frame (321) is fixedly connected on the left side of the plastic greenhouse (1), the thermal insulation frame (321) inside is rotatably connected with winding roller (322), the winding roller (322) outside is wound with thermal insulation cloth (323), the winding roller (322) front is fixedly connected with primary conical gear (324), the primary conical gear (324) bottom is engaged with secondary conical gear (325), the secondary conical gear (325) top is fixedly connected with rotating shaft (326), the rotating shaft (326) top is fixedly connected with tertiary conical gear (327), the tertiary conical gear (327) right side is engaged with fourth conical gear (328).

5. The heat retaining device for a plastic greenhouse according to claim 4, wherein: The secondary conical gear (325) is rotatably connected on the inside bottom of the support frame (311), and the tertiary conical gear (327) is rotatably connected in the support frame (311), and the fourth conical gear (328) is fixedly connected on the outside of the screw rod (313), and the thermal insulation cloth (323) right end is fixedly connected on the bottom of the slide rod (318).

6. The heat retaining device for a plastic greenhouse according to claim 1, wherein: The heating mechanism (4) includes hot blast furnace (41), the hot blast furnace (41) is fixedly connected on the inside back of the plastic greenhouse (1), the hot blast furnace (41) top is fixedly connected with air inlet fan (42), the air inlet fan (42) front is fixedly connected with air outlet pipe (43), the air outlet pipe (43) top is fixedly connected with connecting column (44).

7. The heat retaining device of a plastic greenhouse according to claim 6, wherein: The plastic greenhouse (1) is provided with a groove at the position corresponding to the connecting column (44), and the connecting column (44) is fixedly connected in the groove.

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