Efficient folding and unfolding warm keeping device for agricultural greenhouse

Abstract

The utility model belongs to the technical field of agricultural warm-keeping equipment, and particularly relates to an efficient folding and unfolding warm-keeping device for an agricultural greenhouse, which comprises a greenhouse main body, a folding and unfolding warm-keeping mechanism is mounted at the upper end of the greenhouse main body, and protective sheds are fixedly connected to the left side and the right side of the folding and unfolding warm-keeping mechanism. According to the device, the two winding rotating rods can be driven to rotate relatively through mutual cooperation of the double-shaft motor, the worm and the worm gear, and then the unfolding process of the two warm-keeping blankets can be rapidly achieved in the using process of the device, so that the two warm-keeping blankets can be smoothly laid on the upper portion of the greenhouse body; at the moment, the warm-keeping effect of the greenhouse body in the using process can be improved under the cooperation of the two warm-keeping blankets, correspondingly, after the device is used, the two warm-keeping blankets can be rapidly wound, and therefore the device can be folded and unfolded more conveniently.

Description

Technical Field

[0001] The utility model belongs to the technical field of agricultural warming equipment, and particularly relates to an efficiently retractable and expandable warming device for an agricultural greenhouse. Background Art

[0002] Greenhouse planting is a planting technique, which is a scientific planting method and is used to cultivate strong seedlings. In winter, in order to effectively maintain the temperature of the plants planted in the greenhouse, warming measures will be taken for them.

[0003] Problems existing in the prior art:

[0004] In the process of using the existing greenhouse warming devices, usually straw curtains are hung on the greenhouse, and straw mats and cotton quilts are covered to increase the warming effect of the greenhouse. When using such warming measures, the retraction and expansion process is relatively inconvenient, and a large amount of manpower is required. Content of the Utility Model

[0005] The purpose of the utility model is to provide an efficiently retractable and expandable warming device for an agricultural greenhouse, which can solve the problems that in the process of using the existing greenhouse warming devices, usually straw curtains are hung on the greenhouse, and straw mats and cotton quilts are covered to increase the warming effect of the greenhouse. When using such warming measures, the retraction and expansion process is relatively inconvenient, and a large amount of manpower is required.

[0006] The technical solution adopted by the utility model is specifically as follows:

[0007] An efficiently retractable and expandable warming device for an agricultural greenhouse includes a greenhouse main body. A retractable and expandable warming mechanism is installed at the upper end of the greenhouse main body. Protective sheds are fixedly connected to both the left and right sides of the retractable and expandable warming mechanism. Support and limit mechanisms are installed on both the front and back sides of the retractable and expandable warming mechanism. The left and right sides of the retractable and expandable warming mechanism are respectively sleeved with the left and right ends of the two support and limit mechanisms, and the lower ends of the two support and limit mechanisms are flush with the lower end of the greenhouse main body.

[0008] The retractable and expandable warming mechanism includes a housing. The lower end of the housing is detachably installed at the upper end of the greenhouse main body. The housing is detachably connected to the two support and limit mechanisms respectively through four mounting holes opened in the inner parts of its front and back ends.

[0009] Both the left and right ends of the housing are fixedly connected to the two protective sheds respectively. The housing is movably connected to the left and right sides of two winding rods respectively through two connection holes opened in the inner parts of its left and right ends. The two winding rods are respectively fixedly connected to one ends of two warming blankets.

[0010] The other ends of the two heat-preserving blankets respectively pass through the openings formed at the front and rear ends of the housing and are respectively fixedly connected to the two connecting rods. The left and right ends of the two connecting rods are respectively fixedly connected with I-shaped rods, and clamping sleeve plates are movably connected to the four I-shaped rods.

[0011] The four clamping sleeve plates are respectively sleeved on the left and right ends of the two support and limit mechanisms. One end of a first spring is sleeved on each of the four I-shaped rods. The relatively close ends of the four first springs are respectively fixedly connected to the four clamping sleeve plates, and the relatively far ends of the four first springs are respectively fixedly connected to the relatively far sides of the four I-shaped rods. The upper ends of the two heat-preserving blankets located inside the housing are both lapped with pressing rollers, and the left and right ends of the two pressing rollers are respectively movably connected to the left and right ends of the mounting frame.

[0012] The mounting frame is movably connected to four limiting rods respectively through four limiting holes formed in the mounting frame. The upper and lower ends of the four limiting rods are respectively fixedly connected to the upper and lower inner side surfaces of the housing.

[0013] One end of a second spring is sleeved on each of the four limiting rods. The lower ends of the four second springs are respectively fixedly connected to the bottom surface inside the housing, and the upper ends of the four second springs are all fixedly connected to the mounting frame. The left and right ends of the two winding rotating rods are respectively fixedly connected with worm wheels, the four worm wheels are respectively in meshing transmission with four worm shafts, and the relatively close ends of the four worm shafts are respectively fixedly connected to two output shafts arranged on the two double-shaft motors.

[0014] The two double-shaft motors are respectively fixedly connected to the left and right ends of the housing. The relatively far ends of the four worm shafts are movably connected with support plates, and the relatively close ends of the four support plates are respectively fixedly connected to the left and right ends of the housing.

[0015] Each of the two support and limit mechanisms includes a cross bar and two mounting vertical plates. The four mounting vertical plates are respectively detachably mounted on the front and rear ends of the housing through two mounting bolts arranged thereon. The left and right ends of the two cross bars are respectively sleeved on the four clamping sleeve plates, and arc-shaped rods are fixedly connected to the relatively far ends of the four mounting vertical plates.

[0016] Concave sleeves are sleeved on the four arc-shaped rods. The lower ends of the four concave sleeves are respectively fixedly connected to the two cross bars, the lower ends of the four arc-shaped rods are respectively fixedly connected to two support bottom plates, and the lower ends of the two support bottom plates are flush with the lower end of the greenhouse main body.

[0017] The technical effects achieved by the present utility model are:

[0018] The utility model can drive two winding rods to rotate relatively through the mutual cooperation among the provided double-shaft motor, worm and worm wheel, so as to quickly realize the unfolding process of two thermal blankets during the use of the device, enabling the two thermal blankets to be smoothly laid above the greenhouse main body. At this time, with the cooperation of the two thermal blankets, the heat preservation effect of the greenhouse main body during use can be increased. Correspondingly, when the device is not in use, the winding process of the two thermal blankets can be quickly realized, making the unfolding and winding process of the device more convenient. During the winding process of the thermal blankets, the mutual cooperation among the provided second spring, limiting rod and mounting bracket can make the lower ends of the two pressure rollers always respectively lap with the upper ends of the two thermal blankets, thus avoiding the situation of wrinkles during the unfolding and winding of the thermal blankets, and at the same time enabling the two thermal blankets to be tightly wound on the two winding rods. Through the mutual cooperation among the provided arc rod, concave sleeve, cross bar, I-shaped rod, first spring, clamping sleeve plate and connecting rod, the stability of the thermal blankets during the unfolding and winding process can be increased, and at the same time, the stability of the thermal blankets during use is ensured, greatly avoiding the situation that the thermal blankets are lifted and offset by the wind during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the front perspective structural schematic diagram of the utility model;

[0020] Figure 2 is the left perspective structural schematic diagram of the utility model;

[0021] Figure 3 is the front cross-sectional perspective structural schematic diagram of the unfolding and winding thermal insulation mechanism of the utility model;

[0022] Figure 4 is the right cross-sectional perspective structural schematic diagram of the unfolding and winding thermal insulation mechanism of the utility model;

[0023] Figure 5 is the right perspective structural schematic diagram of the unfolding and winding thermal insulation mechanism of the utility model;

[0024] Figure 6 is the left perspective structural schematic diagram of the support and limit mechanism of the utility model.

[0025] In the drawings, the list of components represented by each reference numeral is as follows:

[0026] 1. Main body of the greenhouse; 2. Support and limit mechanism; 21. Support bottom plate; 22. Arc rod; 23. Cross bar; 24. Concave sleeve; 25. Installation vertical plate; 26. Installation bolt; 3. Protective shed; 4. Folding and warming mechanism; 41. Housing; 42. Limiting rod; 43. Second spring; 44. Warming blanket; 45. Pressing roller; 46. Installation frame; 47. Winding rotating rod; 48. Biaxial motor; 49. Support plate; 410. Connecting rod; 411. Clamping sleeve plate; 412. I-shaped rod; 413. First spring; 414. Worm gear; 415. Worm. Detailed implementation mode

[0027] In order to make the purpose and advantages of the present utility model clearer, the following takes examples to specifically illustrate the present utility model. It should be understood that the following text only describes one or several specific implementation modes of the present utility model, and does not strictly limit the specific protection scope claimed by the present utility model.

[0028] As Figure 1-6 shown, an efficient folding and warming device for agricultural greenhouses includes the main body 1 of the greenhouse. A folding and warming mechanism 4 is installed at the upper end of the main body 1 of the greenhouse. Protective sheds 3 are fixedly connected to both the left and right sides of the folding and warming mechanism 4. Support and limit mechanisms 2 are installed on both the front and back sides of the folding and warming mechanism 4. The left and right sides of the folding and warming mechanism 4 are respectively sleeved with the left and right ends of the two support and limit mechanisms 2, and the lower ends of the two support and limit mechanisms 2 are flush with the lower end of the main body 1 of the greenhouse. By setting the folding and warming mechanism 4, it can be quickly unfolded during use, thereby achieving the warming effect on the main body 1 of the greenhouse. Correspondingly, when the device is not in use, the folding and warming mechanism 4 can be quickly stored, making the folding and unfolding process of the device more convenient and increasing the flexibility during the use of the device. By setting the support and limit mechanism 2, the stability of the folding and warming mechanism 4 during the folding and unfolding process can be increased, and at the same time, it can provide a certain supporting effect on the folding and warming mechanism 4.

[0029] Further, the retractable and expandable heat preservation mechanism 4 includes a housing 41. The lower end of the housing 41 is detachably installed at the upper end of the greenhouse main body 1. The housing 41 is detachably connected to the two support and limit mechanisms 2 respectively through four installation holes opened in the inner parts of its front and rear ends. The left and right ends of the housing 41 are fixedly connected to the two protective sheds 3 respectively. The housing 41 is movably connected to the left and right sides of the two winding rods 47 respectively through two connection holes opened in the inner parts of its left and right ends. The two winding rods 47 are respectively fixedly connected to one end of the two heat preservation blankets 44. The other ends of the two heat preservation blankets 44 respectively pass through the openings opened in the front and rear ends of the housing 41 and are respectively fixedly connected to the two connecting rods 410. The left and right ends of the two connecting rods 410 are fixedly connected with I-shaped rods 412. Clamping sleeve plates 411 are movably connected to the four I-shaped rods 412. The four clamping sleeve plates 411 are respectively sleeved on the left and right ends of the two support and limit mechanisms 2. Spring 1 413 is sleeved on the four I-shaped rods 412. Through the mutual cooperation among the set spring 1 413, I-shaped rod 412 and clamping sleeve plate 411, the connection process between the connecting rod 410 and the support and limit mechanism 2 can be quickly achieved. Furthermore, with the cooperation of the set connecting rod 410, the stability of the heat preservation blanket 44 during the retractable and expandable process can be effectively increased. Through the rotation of the two winding rods 47, the retractable and expandable process of the two heat preservation blankets 44 can be achieved with the cooperation of the two set winding rods 47.

[0030] At the upper ends inside the housing 41, two heat preservation blankets 44 are each lapped with a pressure roller 45. The left and right ends of the two pressure rollers 45 are respectively movably connected to the left and right ends of the mounting frame 46. The mounting frame 46 is movably connected to four limiting rods 42 respectively through four limiting holes opened inside it. The upper and lower ends of the four limiting rods 42 are respectively fixedly connected to the upper and lower side surfaces inside the housing 41. Spring two 43 is sleeved on each of the four limiting rods 42. At the left and right ends of the two winding rotating rods 47, worm gears 414 are fixedly connected. The four worm gears 414 are respectively in meshing transmission with four worm shafts 415. The relatively close ends of the four worm shafts 415 are respectively fixedly connected to two output shafts provided on each of the two double-shaft motors 48. The two double-shaft motors 48 are respectively fixedly connected to the left and right ends of the housing 41. The relatively far ends of the four worm shafts 415 are each movably connected to a support plate 49. The relatively close ends of the four support plates 49 are respectively fixedly connected to the left and right ends of the housing 41. Through the mutual cooperation among the spring two 43, the limiting rods 42 and the mounting frame 46, the effect of driving the two pressure rollers 45 to move downward can be achieved. Furthermore, with the cooperation of the two pressure rollers 45 provided, the situation of wrinkles appearing during the winding process of the heat preservation blanket 44 can be avoided, and the heat preservation blanket 44 can be tightly wound on the winding rotating rod 47. By the rotation of the output shafts of the two double-shaft motors 48, the four worm shafts 415 are driven to rotate. Furthermore, with the action of the four worm gears 414 provided, the effect of driving the two winding rotating rods 47 to rotate relatively can be achieved. Through the protective shed 3 provided, the equipment installed at the left and right ends of the housing 41 can be protected.

[0031] Furthermore, each of the two support and limit mechanisms 2 includes a cross bar 23 and two mounting vertical plates 25. The four mounting vertical plates 25 are respectively detachably mounted on the front and rear ends of the housing 41 through two mounting bolts 26 provided on them. The left and right ends of the two cross bars 23 are respectively sleeved with four clamping sleeve plates 411. At the relatively far ends of the four mounting vertical plates 25, arc-shaped rods 22 are fixedly connected. Concave sleeves 24 are sleeved on the four arc-shaped rods 22. The lower ends of the four concave sleeves 24 are respectively fixedly connected to the two cross bars 23. The lower ends of the four arc-shaped rods 22 are respectively fixedly connected to two support bottom plates 21. The lower ends of the two support bottom plates 21 are flush with the lower end of the greenhouse main body 1. Through the cooperation of the arc-shaped rods 22, the concave sleeves 24, the cross bar 23 and the connecting rod 410, the stability during the unfolding and winding process of the heat preservation blanket 44 can be increased. Through the mutual cooperation among the mounting vertical plates 25, the arc-shaped rods 22 and the support bottom plates 21, the housing 41 can be supported.

[0032] The working principle of the present utility model is as follows:

[0033] When it is necessary to increase the heat preservation effect during the use of the greenhouse main body 1, first start two double-shaft motors 48 to drive four worm gears 415 to rotate. Through the rotation of the four worm gears 415, with the cooperation of the four worm wheels 414 arranged, two winding rods 47 can be driven to rotate relatively. At this time, the operator pulls two connecting rods 410 and moves downward along the corresponding arc-shaped rods 22 until the two heat preservation blankets 44 are both laid on the greenhouse main body 1. At this time, the heat preservation effect of the greenhouse main body 1 during use can be increased. When the heat preservation blankets 44 need to be stored after use, start the two double-shaft motors 48 to drive the four worm gears 415 to rotate in the reverse direction. Then, with the cooperation of the four worm wheels 414, the two winding rods 47 can be driven to rotate relatively. At this time, the winding and storage process of the two heat preservation blankets 44 can be achieved. During the winding and storage process of the two heat preservation blankets 44, the mutual cooperation among the second spring 43, the limiting rod 42 and the mounting frame 46 can drive the lower ends of the two pressure rollers 45 to always overlap with the upper ends of the heat preservation blankets 44 during the winding and rolling process respectively, thereby avoiding the wrinkling phenomenon of the heat preservation blankets 44 during the unfolding and retracting process, and at the same time enabling the heat preservation blankets 44 to be tightly wound and rolled on the corresponding winding rods 47.

[0034] The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art of this technology, without departing from the principle of the present invention, several improvements and retouches can be made, and these improvements and retouches should also be regarded as the protection scope of the present invention. The structures, devices and operation methods not specifically described and explained in the present invention, unless otherwise specified and limited, are implemented according to the conventional means in the art.

Claims

1. An efficient retractable and expandable thermal insulation device for an agricultural greenhouse, comprising a greenhouse main body (1), characterized in that: A foldable and expandable heat-keeping mechanism (4) is installed at the upper end of the greenhouse body (1), and the left and right sides of the foldable and expandable heat-keeping mechanism (4) are fixedly connected to the protective shed (3), and the front and rear sides of the foldable and expandable heat-keeping mechanism (4) are installed with support and limit mechanisms (2), and the left and right sides of the foldable and expandable heat-keeping mechanism (4) are respectively sleeved with the left and right ends of the two support and limit mechanisms (2), and the lower ends of the two support and limit mechanisms (2) are flush with the lower end of the greenhouse body (1).

2. The high-efficiency retractable and expandable thermal insulation device for an agricultural greenhouse according to claim 1, characterized in that: The retractable and expandable heat-keeping mechanism (4) comprises a shell (41), the lower end of which is detachably mounted on the upper end of the greenhouse body (1), and the shell (41) is detachably connected to two supporting and limiting mechanisms (2) through four mounting holes provided inside the front and rear ends thereof.

3. The high-efficiency retractable and expandable heat preservation device for an agricultural greenhouse according to claim 2, wherein: The left and right ends of the shell (41) are respectively fixedly connected to the two protection sheds (3); the shell (41) is movably connected to the left and right sides of two winding rotating rods (47) through two connection holes provided inside the left and right ends; the two winding rotating rods (47) are respectively fixedly connected to one end of the two thermal blankets (44).

4. The high-efficiency retractable and expandable thermal insulation device for agricultural greenhouses according to claim 3, characterized in that: The other ends of the two thermal blankets (44) pass through openings provided at both the front and rear ends of the shell (41) and are fixedly connected to the two connecting rods (410) respectively. The left and right ends of the two connecting rods (410) are fixedly connected to I-shaped rods (412), and the four I-shaped rods (412) are movably connected to a clamping sleeve plate (411).

5. The efficient retractable and expandable thermal insulation device for an agricultural greenhouse according to claim 4, characterized in that: The four snap-fit sleeve plates (411) are respectively sleeved with the left and right ends of the two support and limit mechanisms (2); the four I-shaped rods (412) are sleeved with springs 1 (413); the upper ends of the two thermal blankets (44) located inside the shell (41) are overlapped with pressure rollers (45); the left and right ends of the two pressure rollers (45) are respectively movably connected to the left and right ends of the mounting frame (46).

6. The highly efficient retractable and expandable thermal insulation device for an agricultural greenhouse according to claim 5, wherein: The mounting frame (46) is movably connected to four limiting rods (42) through four limiting holes provided therein, and the upper and lower ends of the four limiting rods (42) are fixedly connected to the upper and lower side surfaces inside the shell (41) respectively.

7. The high-efficiency retractable and expandable heat preservation device for an agricultural greenhouse according to claim 6, characterized in that: The four limiting rods (42) are sleeved with springs 2 (43), the left and right ends of the two winding rotating rods (47) are fixedly connected with worm wheels (414), the four worm wheels (414) are respectively meshed with four worms (415) for transmission, and the relatively close ends of the four worms (415) are respectively fixedly connected with two output shafts provided on two dual-axis motors (48).

8. The highly efficient retractable and expandable thermal insulation device for an agricultural greenhouse according to claim 7, wherein: The two dual-axis motors (48) are respectively fixedly connected to the left and right ends of the housing (41); the relatively remote ends of the four worm gears (415) are movably connected to support plates (49); and the relatively close ends of the four support plates (49) are respectively fixedly connected to the left and right ends of the housing (41).

9. The high-efficiency retractable and expandable thermal insulation device for an agricultural greenhouse according to claim 5, characterized in that: Each of the two support and limit mechanisms (2) includes a cross bar (23) and two mounting vertical plates (25). The four mounting vertical plates (25) are respectively detachably mounted at the front and rear ends of the housing (41) through two mounting bolts (26) provided thereon. The left and right ends of the two cross bars (23) are respectively sleeved with four clamping sleeve plates (411). The relatively remote ends of the four mounting vertical plates (25) are fixedly connected with arc-shaped rods (22).

10. The highly efficient retractable and expandable thermal insulation device for an agricultural greenhouse according to claim 9, wherein: Four concave-shaped sleeves (24) are sleeved on the four arc-shaped rods (22). The lower ends of the four concave-shaped sleeves (24) are respectively fixedly connected with the two cross bars (23). The lower ends of the four arc-shaped rods (22) are respectively fixedly connected with two support bottom plates (21). The lower ends of the two support bottom plates (21) are flush with the lower end of the greenhouse main body (1).

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