CN221011058U - Single plastic greenhouse suitable for mechanized watermelon - Google Patents
Single plastic greenhouse suitable for mechanized watermelon Download PDFInfo
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- CN221011058U CN221011058U CN202322683496.4U CN202322683496U CN221011058U CN 221011058 U CN221011058 U CN 221011058U CN 202322683496 U CN202322683496 U CN 202322683496U CN 221011058 U CN221011058 U CN 221011058U
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- 239000004033 plastic Substances 0.000 title claims abstract description 24
- 241000219109 Citrullus Species 0.000 title claims description 26
- 235000012828 Citrullus lanatus var citroides Nutrition 0.000 title claims description 26
- 239000002985 plastic film Substances 0.000 claims description 5
- 229920006255 plastic film Polymers 0.000 claims description 5
- 229910001335 Galvanized steel Inorganic materials 0.000 claims description 4
- 239000008397 galvanized steel Substances 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 abstract description 9
- 239000010959 steel Substances 0.000 abstract description 9
- 239000000463 material Substances 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004720 fertilization Effects 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000003971 tillage Methods 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
Landscapes
- Greenhouses (AREA)
Abstract
The utility model relates to the technical field of greenhouse structures, and aims to solve the problem that a general 8-meter cross-steel frame greenhouse in the prior art is poor in snow load resistance; the steel pipe material of the universal single 8-meter span greenhouse is fully utilized, the structure is improved, so that the greenhouse is narrower and higher, the land utilization rate is improved on the premise of ensuring economy, the effective working space inside the greenhouse is increased, and the stability of the greenhouse frame is enhanced. The structure has lower manufacturing cost, simple and convenient assembly and is suitable for popularization. This scheme has reduced the big-arch shelter span, is 7.3 meters by 8 meters adjustment, has improved the inflection point height of big-arch shelter bow member to 2.3 meters, has increased the big-arch shelter shoulder height to 1.8 meters, and the ridge height improves to 3.3 meters by 3.0 meters, increases the inside effective operation space height of big-arch shelter. The width L1 of the shed door 8 is 2.5m, so that common equipment can conveniently enter and exit. Under the same load condition, the extreme stress of the mechanized single plastic greenhouse is reduced by 13.9 percent compared with that of a common single 8-meter span greenhouse, the maximum deformation is reduced by 20.2 percent, and the snow load resistance is obviously improved.
Description
Technical Field
The utility model relates to the technical field of greenhouse structures, in particular to a single-span plastic greenhouse suitable for mechanized watermelon.
Background
The watermelon has high requirements on the growth environment, and the plastic greenhouse can provide the cultivation environment with proper temperature, humidity, illumination and the like for the watermelon, so that the watermelon can be widely used for facility watermelon cultivation. The plastic greenhouse with the size adaptive and structure standard is adopted to carry out watermelon planting, so that the single yield of watermelons can be improved, the watermelons can be marketed in advance, and higher economic benefits are realized.
The watermelon planting needs the assistance of agricultural machines in the links of soil preparation, fertilization, cultivation management, harvesting and the like so as to improve the efficiency. However, the current universal single 8-meter span steel frame greenhouse has limited height at the side wall inside the greenhouse due to the arc-shaped structure, the full coverage of mechanized tillage cannot be completed in the greenhouse, and the snow load resistance of the top of the greenhouse is poor.
Aiming at the problems, the utility model fully utilizes the single 8-meter span greenhouse type steel pipe material to improve the economy on the basis of analyzing the mechanical requirement of the watermelon planting greenhouse, develops the mechanized optimization design of the greenhouse structure, provides enough space for the in-out and internal operation of agricultural machinery and improves the stability of the greenhouse structure.
Disclosure of utility model
Based on the expression, the utility model provides a single plastic greenhouse suitable for mechanized watermelon, which aims to solve the structural design defect of the arc shape of the common steel frame greenhouse in the prior art.
The technical scheme for solving the technical problems is as follows: a suitable mechanized watermelon single-span plastic greenhouse comprises a greenhouse supporting structure, wherein a cover is covered on the upper surface of the greenhouse supporting structure, the greenhouse supporting structure comprises an arch bar, a greenhouse head upright post and a longitudinal pull rod,
The arch bars are symmetrically provided with two groups, one end of each group of the arch bars is fixed with the foundation, the other end of each group of the arch bars is connected with the corresponding group of the arch bars to form the highest point of the greenhouse supporting structure, the middle parts of the arch bars are bent to form ceiling sections and supporting sections on two sides, the included angle between the ceiling sections and the bottom surface is smaller than that of the supporting sections,
The vertical pull rod of multiunit stretches across big-arch shelter bearing structure's both ends and links to each other with the ceiling section, the supporting section of arch bar respectively, the both ends of big-arch shelter bearing structure are located to canopy head stand is vertical, the one end and the ground of canopy head stand are fixed, and the other end is connected with the arch bar, big-arch shelter bearing structure's tip is provided with horizontal connecting rod and links to each other with the arch bar of both sides, the connecting rod links to each other with canopy head stand.
On the basis of the technical scheme, the utility model can be improved as follows.
Further, the length of the arch bar is 6m, the height of the arch bar from the bottom point where the arch bar contacts with the ground to the position of 0.5m of the central axis of the greenhouse is defined as shoulder height, the shoulder height is 1.8m, the height from the highest point of the arch bar to the foundation is defined as ridge height, and the ridge height is 3.3m.
Further, the length of the supporting section is 2.3m, the supporting section is inserted into the foundation, the insertion depth is 0.4m, the width between the contact points of the supporting section and the foundation on two sides is defined as a span, and the span is 7.3m.
Further, the arch bar is a hot dip galvanized steel pipe with the diameter of 25mm and the wall thickness of 1.5mm, and the ceiling section is bent into an arc shape by using a pipe bender.
Further, the end point of the longitudinal pull rod is connected with a diagonal pull support, the diagonal pull support extends towards the other end of the longitudinal pull rod and the direction of the foundation, the other end of the diagonal pull support is connected with the foundation, and the diagonal pull support is connected with the passing arch bar and the longitudinal pull rod.
Further, the longitudinal pull rod and the connecting rod which are arranged on the supporting section are provided with clamping grooves for clamping the covering.
Further, a shed door is formed between shed head stand columns at the end part of the greenhouse supporting structure, and the width of the shed door is 2.5m.
Further, the width between the adjacent canopy head stand columns at two sides of the canopy door is 0.8m.
Further, the cover is a plastic film.
Compared with the prior art, the technical scheme of the application has the following beneficial technical effects:
The steel pipe material of the universal single 8-meter span greenhouse is fully utilized, the structure of the greenhouse is improved, so that the greenhouse is narrower and higher, the land utilization rate is improved on the premise of ensuring economy, the effective working space inside the greenhouse is increased, the stability of the greenhouse framework is enhanced, the mechanical access is also facilitated due to the design of the greenhouse door, and the requirement of mechanical planting of watermelons on the greenhouse structure is met. The structure has lower manufacturing cost, simple and convenient assembly and is suitable for popularization.
Drawings
Fig. 1 is a schematic structural diagram of an arch bar connection according to an embodiment of the present utility model;
Fig. 2 is a schematic structural diagram of a shed door according to an embodiment of the present utility model;
Fig. 3 is a schematic diagram of the overall structure of a greenhouse supporting structure according to an embodiment of the present utility model;
In the drawings, the list of components represented by the various numbers is as follows:
1. Arch bars; 2. a shed head upright post; 3. a longitudinal tie rod; 4. a foundation; 5. a ceiling section; 6. a support section; 7. diagonal bracing; 8. a canopy door; 9. and (5) connecting a rod.
Detailed Description
In order that the application may be readily understood, a more complete description of the application will be rendered by reference to the appended drawings. Embodiments of the application are illustrated in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
It will be appreciated that spatially relative terms such as "under …," "under …," "under …," "over …," "over" and the like may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use and operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements or features described as "under" or "beneath" other elements would then be oriented "on" the other elements or features. Thus, the exemplary terms "below …" and "under …" may include both an upper and a lower orientation. Furthermore, the device may also include an additional orientation (e.g., rotated 90 degrees or other orientations) and the spatial descriptors used herein interpreted accordingly.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or be connected to the other element through intervening elements. In the following embodiments, "connected" is understood to mean "electrically connected", "communicatively connected", and the like, if the connected circuits, modules, units, and the like have electrical or data transferred therebetween.
As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," and/or the like, specify the presence of stated features, integers, steps, operations, elements, components, or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or groups thereof.
As shown in fig. 1-3, the single plastic greenhouse suitable for the mechanized watermelon comprises a greenhouse supporting structure, wherein a covering is covered on the upper surface of the greenhouse supporting structure, and a plastic film is generally selected as the covering. The greenhouse supporting structure comprises an arch bar 1, a greenhouse head upright post 2 and a longitudinal pull rod 3, and forms a frame structure. Wherein, arch bars 1 symmetry is provided with two sets of, and every group arch bar 1 is located one side and equidistant setting, overlap joint forms arch structure between two groups arch bars 1. The lower end of each group of arch bars 1 is fixed with the foundation 4, and the upper end is connected with the pair of groups of arch bars 1 to form the highest point of the greenhouse supporting structure. If the foundation 4 is a land, the end part of the arch bar 1 is inserted into the ground, and the other end of the arch bar 1 is connected through a connecting pipe to form a basic supporting framework of the greenhouse.
In order to avoid the structural problem in the background technology, the middle part of the arch bar 1 is bent to form the ceiling sections 5 and the supporting sections 6 on two sides, and the included angle between the ceiling sections 5 and the bottom surface is smaller than the supporting sections 6. The included angle between the supporting section 6 and the ground is larger, so that the space at the inner side wall of the shed is larger, the upper barrier is lifted relatively, and the mechanized equipment can conveniently enter the space at the edge to operate.
The vertical pull rod 3 of multiunit spanned greenhouse bearing structure's both ends and link to each other with the ceiling section 5, the supporting section 6 of arch bar 1 respectively, and greenhouse head stand 2 is vertical locates greenhouse bearing structure's both ends, and greenhouse head stand 2's lower extreme is fixed with ground 4, and the upper end is connected with arch bar 1, and greenhouse bearing structure's tip is provided with horizontal connecting rod 9 and links to each other with arch bar 1 of both sides, and connecting rod 9 links to each other with greenhouse head stand 2. The lower end of the canopy head upright post 2 is inserted into the ground, the insertion depth C 3 is 0.4m, the upper end is fixed with the arch bar 1 through a clamp, and the longitudinal pull rod 3 is fixed with the arch bar 1 through a pressing spring or a fixer.
The end point of the longitudinal pull rod 3 is connected with a diagonal pull support 7, the diagonal pull support 7 extends towards the other end of the longitudinal pull rod 3 and the direction of the foundation 4, the other end of the diagonal pull support 7 is connected with the foundation 4, and the diagonal pull support 7 is connected with the passing arch rod 1 and the longitudinal pull rod 3. The diagonal bracing 7 is fixed with the arch bar 1 through a U-shaped clamp. In one embodiment, the upper part (ceiling section 5) of the greenhouse is provided with three longitudinal pull rods 3, the side part (supporting section 6) is provided with four longitudinal pull rods 3, each greenhouse head is provided with two inclined pull supports 7, and the inclined pull supports 7 are connected with five arch bars 1 comprising the greenhouse head. In order to prevent the plastic film from being influenced by blowing and being not firmly attached to the greenhouse frame, the longitudinal pull rod 3 and the connecting rod 9 arranged on the supporting section 6 are provided with clamping grooves for clamping the plastic film.
Specifically, the length of the arch bar 1 is 6m, the height of the arch bar from the footing point where the arch bar contacts with the ground to the position of 0.5m of the central axis of the greenhouse is defined to be shoulder height H 2, the shoulder height is preferably 1.8m, and the higher shoulder height is beneficial to the agricultural equipment to be closer to the edge of the greenhouse, namely, the larger operation area in the greenhouse can be covered. The height of the highest point of the arch bar 1 from the foundation 4 is defined as the ridge height H 1, which is 3.3m. The length C 1 of the support section 6 is 2.3m, the support section 6 is inserted into the foundation 4, the depth C 2 of insertion is 0.4m, the width between the contact points of the support sections 6 and the foundation 4 defining two sides is a span, and the span is 7.3m. The arch bar 1 is a hot dip galvanized steel pipe with the diameter of 25mm and the wall thickness of 1.5mm, and the ceiling section 5 is bent into a circular arc shape by using a pipe bender.
The steel pipe material of the common single 8-meter span shed in the prior art can be fully utilized by the size design, so that the economy is ensured, the bending point height of the shed arch bar 1 is increased to 2.3 meters, the shed shoulder height is increased to 1.8 meters, the ridge height is increased to 3.3 meters from 3.0 meters, and the effective operation space height in the shed is increased. The span of the greenhouse is reduced, the 8 meters are adjusted to 7.3 meters, and 3 ridges of watermelon cultivated in a climbing manner can be planted in the greenhouse, so that the land utilization rate is improved.
In order to facilitate the mechanical access, a shed door 8 is formed between shed head upright posts 2 at the end part of the greenhouse supporting structure, and the width L 1 of the shed door 8 is 2.5m. The width L 2 between the adjacent canopy head upright posts 2 on two sides of the canopy door 8 is 0.8m, six canopy head upright posts 2 and three connecting rods 9 are arranged on the canopy head, and the connecting rods 9 are vacated at the canopy door 8.
The arch bar shoulder height of this scheme design is 1.8m, can effectively adapt to common several equipment: the external dimensions (length. Width. Height) of the hand-push combine harvester are as follows: 2720 x 1300 x 121mm; the overall dimensions (length, width, height) of the east wind 554-15 greenhouse Wang Tuola machine are: 3475 x 1330 (to the steering wheel) mm; the height of the rear part of the hood of the hammer 504-E greenhouse Wang Tuola machine is 1100mm.
In order to quantitatively show the advantages of the greenhouse structure, the stress conditions of the universal single 8-meter span greenhouse and the mechanized single plastic greenhouse when bearing snow load are compared and analyzed through finite element software. The diameter of the greenhouse steel pipe is 25mm, the wall thickness is 1.5mm, and the material is hot dip galvanized steel pipe Q235A. According to GB/T51183-2016 agricultural greenhouse structural load Specification, the basic snow pressure and roof snow distribution coefficient of a plastic greenhouse designed for the service life of 10 years in the Hubei Zhaoxiang region are determined, and the snow load standard value is calculated and obtained, and meanwhile, the structural dead weight is applied. As a result of calculation, the extreme stress in the universal single 8-meter span greenhouse is 129.8MPa, and the extreme stress in the mechanized single plastic greenhouse is 111.7MPa. The maximum deformation of the mechanized single plastic greenhouse is reduced from 24.2mm to 19.3mm of the general single 8-meter span greenhouse. Under the same external load condition, the extreme stress born by steel in the mechanized single plastic greenhouse is reduced by 13.9% compared with that born by a common single 8-meter span greenhouse, the maximum deformation is reduced by 20.2%, the material can bear larger external load before failure, and the snow load resistance is obviously improved.
The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.
Claims (9)
1. A suitable mechanized watermelon single-span plastic greenhouse comprises a greenhouse supporting structure, wherein a covering is covered on the upper surface of the greenhouse supporting structure, the plastic greenhouse is characterized in that the greenhouse supporting structure comprises arch bars, greenhouse head upright posts and longitudinal pull rods,
The arch bars are symmetrically provided with two groups, the lower end of each group of arch bars is fixed with a foundation, the upper end of each group of arch bars is connected with the corresponding group of arch bars to form the highest point of the greenhouse supporting structure, the middle parts of the arch bars are bent to form ceiling sections and supporting sections on two sides, the included angle between the ceiling sections and the bottom surface is smaller than that of the supporting sections,
The vertical pull rod of multiunit stretches across big-arch shelter bearing structure's both ends and links to each other with the ceiling section, the supporting section of arch bar respectively, the both ends of big-arch shelter bearing structure are located to canopy head stand is vertical, the lower extreme of canopy head stand is fixed with the ground, and the upper end is connected with the arch bar, big-arch shelter bearing structure's tip is provided with horizontal connecting rod and links to each other with the arch bar of both sides, the connecting rod links to each other with canopy head stand.
2. The motorized watermelon single-span plastic greenhouse according to claim 1, wherein the length of the arch bars is 6m, the height of the arch bars from the bottom point of the arch bars, which is defined as the position, where the arch bars are contacted with the ground, to the central axis of the greenhouse, is 0.5m, the height of the arch bars from the highest point of the arch bars is defined as the height of the ridge, which is 1.8m, and the height of the ridge is defined as 3.3m.
3. The motorized watermelon single-span plastic greenhouse of claim 2, wherein the length of the support section is 2.3m, the support section is inserted into the foundation to a depth of 0.4m, and the width between the contact points of the support sections and the foundation defining the two sides is a span of 7.3m.
4. A motorized watermelon single-span plastic house according to claim 3, wherein the arches are hot dip galvanized steel pipes 25mm in diameter and 1.5mm in wall thickness, and the ceiling sections are curved into circular arcs using a pipe bender.
5. The mechanical watermelon single-span plastic greenhouse according to claim 1, wherein the end point of the longitudinal pull rod is connected with a diagonal pull support, the diagonal pull support extends towards the other end of the longitudinal pull rod and the direction of the foundation, the other end of the diagonal pull support is connected with the foundation, and the diagonal pull support is connected with the passing arch bars and the longitudinal pull rod.
6. The motorized watermelon single-span plastic greenhouse of claim 1, wherein the longitudinal tie and the connecting rod on the support section are provided with clamping grooves for clamping the covering.
7. The motorized watermelon single-span plastic greenhouse of claim 1, wherein a greenhouse door is formed between the greenhouse head upright posts at the end of the greenhouse support structure, and the width of the greenhouse door is 2.5m.
8. The motorized watermelon single-span plastic tent of claim 7, wherein the width between adjacent tent head posts on either side of the door is 0.8m.
9. The motorized watermelon single-span plastic tent of claim 1, wherein the cover is a plastic film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322683496.4U CN221011058U (en) | 2023-09-30 | 2023-09-30 | Single plastic greenhouse suitable for mechanized watermelon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322683496.4U CN221011058U (en) | 2023-09-30 | 2023-09-30 | Single plastic greenhouse suitable for mechanized watermelon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221011058U true CN221011058U (en) | 2024-05-28 |
Family
ID=91178687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322683496.4U Active CN221011058U (en) | 2023-09-30 | 2023-09-30 | Single plastic greenhouse suitable for mechanized watermelon |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221011058U (en) |
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2023
- 2023-09-30 CN CN202322683496.4U patent/CN221011058U/en active Active
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