High-vault plastic greenhouse
Through the innovative design of the high-arched plastic greenhouse, including a rope-pulling machine, a solar thermal collection system, a hot water pipe de-icing and snow-melting device, an insulation layer winding system, and a ventilation device, the problems of difficult insulation layer winding, difficult de-icing and snow removal, and poor ventilation in plastic greenhouses have been solved, achieving convenient operation and efficient heat preservation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-24
- Publication Date
- 2026-03-10
AI Technical Summary
Existing plastic greenhouses suffer from difficulties in rolling up the insulation layer, removing ice and snow, poor ventilation, and lack of expansion and contraction capacity in the insulation structure, resulting in complex operations and limited effectiveness.
The design incorporates a high-arched plastic greenhouse with an independent structure using a rope-pulling machine. It is equipped with a solar thermal collection system, a hot water pipe ice-melting and snow-de-snow-melting device, an insulation layer roll-up system, and a ventilation device. Combined with a combined insulation structure and stacked insulation panels, it enables convenient roll-up and unfolding, ice-melting and snow-de-snow-melting, and efficient ventilation.
It improves the ease of operation of the insulation layer, effectively melts snow, ensures ventilation, enhances the structural strength and insulation performance of the plastic greenhouse, and solves the problems in existing technologies.
Smart Images
Figure CN121621157A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of structure design and application of agricultural plastic greenhouse and its auxiliary device, and particularly relates to a high-arched plastic greenhouse. BACKGROUND
[0002] With the increasing improvement of people's living standards, the supply of off-season vegetables has become an important guarantee for people's dietary health. The plastic greenhouse is an important infrastructure for the supply of off-season vegetables. In order to control the construction and operation cost of the plastic greenhouse, especially in the early days in the northern region of China, the necessary daily maintenance requirements for the roof of the greenhouse mainly include the following contents: rolling up or unfolding the thermal insulation layer 7; deicing and snow removal for the roof and the south side structure of the greenhouse; ventilation for the greenhouse; improving the thermal insulation layer of the plastic greenhouse to improve the thermal insulation performance of the greenhouse; setting the thermal insulation board for the plastic greenhouse with better technical effect is the basis for improving and guaranteeing the thermal insulation effect and structural strength of the plastic greenhouse. The following will be described respectively: The existing measures for rolling up the thermal insulation layer of the roof of the plastic greenhouse are generally driven by motor or manually pulled, but there are technical problems of large operation difficulty and limited technical effect, especially how to ensure easy unfolding next time after rolling up the thermal insulation layer, which has been a technical problem that people are eager to solve.
[0003] The existing measures for deicing and snow removal for the roof of the plastic greenhouse are generally manual processing, but there is a technical problem of local freezing, especially at the structural parts, which is easy to accumulate ice and snow and difficult to remove, and people are eager to obtain a device that can help melt ice and snow for the plastic greenhouse.
[0004] The existing ventilation for the plastic greenhouse is generally opened between the ventilation fans, but the effect is not ideal, and people are eager to obtain a device that can help the plastic greenhouse to ventilate.
[0005] The existing thermal insulation layer for the plastic greenhouse is usually a cotton quilt or other layered / membrane thermal insulation structure, but there are some structures that usually do not have the ability to stretch and retract, and the operation is also relatively complex when rolling up or unfolding; the thermal insulation structure is simple but the effect is limited, and people are eager to obtain a combined thermal insulation structure for the plastic greenhouse that can replace the existing thermal insulation layer used inside or outside the greenhouse, which can realize a certain flexibility. The technical effect is limited when the existing plastic greenhouse uses prefabricated thermal insulation boards for construction, and the construction difficulty is relatively large.
[0006] In summary, people are eager to obtain a high-arched plastic greenhouse with better technical effect. SUMMARY
[0007] The present application provides a high-arched plastic greenhouse with better technical effect.
[0008] The technical scheme of the present application is: The high-arched plastic greenhouse mainly has the characteristics of large span and high support, and can be used for planting fruit trees, thereby solving the problems of low land utilization rate and difficulty in planting tall fruit trees in the existing slope plastic greenhouse. The high-arched plastic greenhouse is invented by separating the base structure of the pulling rope machine from the main body of the high-arched plastic greenhouse, thereby avoiding the contact between the high-arched plastic greenhouse and the pulling rope machine, preventing the formation of a cold bridge, and greatly improving the temperature in the greenhouse.
[0009] The biggest problem of the high-arched plastic greenhouse is that it is difficult to clear the accumulated snow and ice, and the greenhouse is easy to collapse. The present application is provided with a solar heat collection system on the south side of the north wall, and a storage device is arranged. Heat pipes are arranged on the framework of the roof and the outside of the rope pocket. Hot water can be sent to the roof through the heat storage system for melting ice and snow. In this way, the arrangement and use of the plastic greenhouse can be protected, and the problem of the high-arched plastic greenhouse is solved.
[0010] Through the innovative arrangement of the pulling rope machine, the thermal insulation cotton quilt can be cleverly arranged near the north wall, which can greatly improve the sunlight irradiation.
[0011] A high-arched plastic greenhouse comprises a south wall 1, a north wall 2, a top support structure 3, a light-transmitting plastic film 4, a thermal insulation layer 7, and outer walls on both sides of the plastic greenhouse; the plastic greenhouse has sufficient structural strength and thermal insulation performance; the top support structure 3 is arranged above the south wall 1 and the north wall 2 and forms a support framework together with the east and west side walls; the light-transmitting plastic film 4 is arranged outside the top support structure 3; the thermal insulation layer 7 used outside the plastic greenhouse is arranged outside the light-transmitting plastic film 4; and the technical key point is that: In the high-arched plastic greenhouse, the top support structure 3 is an arch support structure, and the highest point is arranged above the north wall 2 or on the north wall 2 side of the space between the north wall 2 and the south wall 1; The thermal insulation layer 7 used outside the plastic greenhouse has at least one layer, and the thermal insulation layer 7 used inside the plastic greenhouse has one to multiple layers; The high-arched plastic greenhouse is further provided with a thermal insulation layer winding system for winding and unfolding the thermal insulation layer 7, which comprises a thermal insulation layer winding long rope 7.1, a thermal insulation layer winding long rope reel 7.2, a thermal insulation layer unfolding rope 7.3, and a thermal insulation layer unfolding rope reel 7.4; The heat-insulation layer winding long rope 7.1 for winding the heat-insulation layer 7 is a long rope with each two adjacent parts connected in series, one part of which is arranged outside the heat-insulation layer, and the end thereof is arranged on the heat-insulation layer winding long rope reel 7.2 and can be wound or unwound by the heat-insulation layer winding long rope reel 7.2 as the heat-insulation layer winding long rope reel 7.2 rotates; the remaining part is turned at the cylindrical structure of the wound heat-insulation layer and arranged below the heat-insulation layer and directly fixed to the most northern edge of the heat-insulation layer 7, i.e. the final parking position or the vicinity of the final parking position of the wound heat-insulation layer; The heat-insulation layer unwinding rope 7.3 is also a long rope with each two adjacent parts connected in series; one end of the heat-insulation layer unwinding rope 7.3 is fixedly arranged on the heat-insulation layer 7 on the side deviated to the south at the highest position of the entire plastic greenhouse roof; when the heat-insulation layer 7 is wound by the heat-insulation layer winding long rope 7.1 with most part of the heat-insulation layer winding long rope 7.1 wound on the heat-insulation layer winding long rope reel 7.2 so that the heat-insulation layer 7 is wound, the heat-insulation layer unwinding rope 7.3 can drag the wound heat-insulation layer 7 and make the wound cylindrical heat-insulation layer 7 dragged to the side deviated to the south at the highest position of the entire plastic greenhouse roof, and then the heat-insulation layer 7 is rolled and unwound under the dragging action of the heat-insulation layer unwinding rope 7.3 and / or under the action of gravity, and the heat-insulation layer 7 is unwound and plays a heat-insulation role for the entire plastic greenhouse; the other end of the heat-insulation layer unwinding rope 7.3 can be wound on the heat-insulation layer unwinding rope reel 7.4 in sequence; as the heat-insulation layer unwinding rope reel 7.4 rotates, the heat-insulation layer unwinding rope 7.3 can be wound on the heat-insulation layer unwinding rope reel 7.4 in sequence or separated from the heat-insulation layer unwinding rope reel 7.4.
[0012] The heat-insulation layer winding long rope reel 7.2 is arranged at the most northern edge of the heat-insulation layer 7 above the roof, and the heat-insulation layer unwinding rope reel 7.4 is arranged above or obliquely above the roof, which can drag the entire heat-insulation layer to the south and has a tendency to drag the entire heat-insulation layer to the south to partially or completely unwind the entire heat-insulation layer.
[0013] The heat-insulation layer winding system for the plastic greenhouse also satisfies one or a combination of the following requirements: Firstly, the installation bases of the heat-insulation layer winding long rope reel 7.2 and the heat-insulation layer unwinding rope reel 7.4 are independently fixedly arranged on the support framework of the plastic greenhouse; The heat-insulation layer winding long rope reel 7.2, which fixes the heat-insulation layer winding long rope 7.1 and is responsible for winding the heat-insulation layer winding long rope 7.1, is arranged at the most northern edge of the heat-insulation layer near the roof; the heat-insulation layer unwinding rope reel 7.4, which fixes the heat-insulation layer unwinding rope 7.3 and is responsible for the heat-insulation layer unwinding rope 7.3; Secondly, in the heat-insulation layer winding system for the plastic greenhouse, an auxiliary redirection cylinder 7.5 is further arranged at the transition connection between the south side and the roof of the entire plastic greenhouse, which is used to help the heat-insulation layer 7 smoothly pass through the position to be wound to the north side of the roof or to be unwound to the south side of the roof. Thirdly, the thermal insulation layer 7 rolled up or unrolled by the thermal insulation layer rolling system for the plastic greenhouse is an external thermal insulation layer arranged outside the plastic greenhouse; the thermal insulation layer rolling long rope reel 7.2 and the thermal insulation layer unrolling rope reel 7.4 are both directly or indirectly connected with a power device driving the rotation thereof; Fourthly, the thermal insulation layer 7 rolled up or unrolled by the thermal insulation layer rolling system for the plastic greenhouse is an internal thermal insulation layer arranged inside the internal space of the light-transmitting plastic film of the plastic greenhouse; the installation bases of the thermal insulation layer rolling long rope reel 7.2 and the thermal insulation layer unrolling rope reel 7.4 are both independently fixedly arranged on the support framework of the plastic greenhouse; The thermal insulation layer rolling long rope reel 7.2 is arranged at or near the final parking position of the thermal insulation layer 7 after rolling up; The thermal insulation layer unrolling rope reel 7.4 is directly or indirectly arranged on the ground base near the south wall of the plastic greenhouse; one end of the thermal insulation layer unrolling rope 7.3 is fixedly arranged at the lowermost edge of the internal thermal insulation layer 7; the other end of the thermal insulation layer unrolling rope 7.3 is fixed on the outer edge of the thermal insulation layer unrolling rope reel 7.4 so as to be sequentially wound on the thermal insulation layer unrolling rope reel 7.4.
[0014] The thermal insulation layer rolling system for the plastic greenhouse has simple structure, and can conveniently and flexibly roll up or unroll the thermal insulation layer 7; it can also be adapted to the high-arch plastic greenhouse, especially the one whose highest point is not above the north wall 2 but at a distance from the north wall 2 on the south side of the north wall 2; it can ensure that the rolling up and unrolling of the thermal insulation layer 7 are both convenient to operate and have excellent technical effects.
[0015] The high-arch plastic greenhouse is also provided with a plastic greenhouse ice and snow melting device arranged at the plastic greenhouse support framework 3; the plastic greenhouse ice and snow melting device comprises: a hot water pipe 9.3 capable of being connected with hot water inside; and an auxiliary fixing structure 12.2 for fixing the hot water pipe 9.3 on the plastic greenhouse support framework; the ice and snow melting is assisted by hot water so as to facilitate the cleaning of the accumulated snow and ice.
[0016] The auxiliary fixing structure 12.2 in the plastic greenhouse ice and snow melting device is a pipe clamp; it is fixedly arranged outside the plastic greenhouse support framework; the fixing structure between the auxiliary fixing structure 12.2 and the plastic greenhouse support framework 3 is one of the following or a combination thereof: a binding structure, an adhesive structure, a magnetic attraction structure, a tubular ring-shaped wrapping structure, and a local ring-shaped half-wrapping structure larger than or equal to a semicircle. It can be simplified as a binding rope structure.
[0017] The plastic greenhouse ice and snow melting device also satisfies one of the following requirements or a combination thereof: One, the auxiliary fixing structure 12.2 is an "S" type pipe clamp 12.2a; the auxiliary fixing structure 12.2 is fixedly arranged on the roof support pipe 3.1 of the plastic greenhouse support framework 3; the hot water pipe 9.3 is located on the one-way outer side of the roof support pipe 3.1; the "S" type pipe clamp 12.2a is clamped on the corresponding cross-section circle center angle of the contact part of the roof support pipe 3.1 of the plastic greenhouse support framework 3, which is greater than 180° to prevent the auxiliary fixing structure 12.2 from falling off; Two, the auxiliary fixing structure 12.2 is a "W" type pipe clamp 12.2b; the auxiliary fixing structure 12.2 is fixedly arranged on the roof support pipe 3.1 of the plastic greenhouse support framework 3; the hot water pipe 9.3 is located on the both sides of the roof support pipe 3.1; the "W" type pipe clamp 12.2b is clamped on the corresponding cross-section circle center angle of the contact part of the roof support pipe 3.1 of the plastic greenhouse support framework 3, which is greater than 180° to prevent the auxiliary fixing structure 12.2 from falling off; Three, the cross-sectional shape of the roof support pipe 3.1 in the plastic greenhouse support framework 3 meets one of the following structural characteristics: circular tube, square tube, channel steel, H steel, angle steel; different structural forms of the roof support pipe 3.1 can be used to set the corresponding available auxiliary fixing structure 12.2; when the cross-sectional shape of the roof support pipe 3.1 in the plastic greenhouse support framework 3 is square tube; the auxiliary fixing structure 12.2 is a structure with a cross-section of "H" type or "X" type; Four, the inside of the roof support pipe 3.1 is also provided with a hot water pipe 9.3; the outside of the sling rope or the inside of the sling rope is also arranged with a hot water pipe 9.3; the sling rope is an external rope used to compress the plastic film; Five, the hot water pipe 9.3 used in cooperation with the "S" type pipe clamp 12.2a or the "W" type pipe clamp 12.2b has a circular or elliptical or semicircular or square cross-section; the "S" type pipe clamp 12.2a or the "W" type pipe clamp 12.2b has corresponding hot water pipe clamping structure and roof support pipe 3.1 clamping structure at the cooperation position with the hot water pipe 9.3.
[0018] The ice and snow melting device for the plastic greenhouse can melt ice and snow at the position where ice and snow is easy to accumulate by means of the hot water pipe 9.3, so that the ice and snow can automatically slide off; even if it cannot automatically slide off, it is also easier to clean; the comprehensive technical effect is excellent. The ice and snow melting device for the plastic greenhouse has simple structure and strong operability; the hot water pipe connection uses a hot water supply device to circulate hot water and improve the utilization rate; the source of hot water can be a solar heat collecting device / electric heating device, etc.
[0019] The high-arched plastic greenhouse is also provided with a ventilation device for the plastic greenhouse, which comprises a ventilation pipe 11.1, an external air inlet 11.2, and an internal air inlet 11.3; wherein: the ventilation pipe 11.1 is connected to the atmosphere outside the south wall 1 of the greenhouse and the inside of the greenhouse through the ground foundation surface below the south wall 1 of the greenhouse, that is, the external air inlet 11.2 is arranged outside the south wall 1 of the greenhouse; and a switch device 11.4 is arranged at the internal air inlet 11.3. The ventilation device design can ensure the ventilation effect. The number of the external air inlet 11.2 and the internal air inlet 11.3 is one to multiple, which can share the ventilation pipe 11.1 or use independent ventilation pipes 11.1; The ventilation device for the plastic greenhouse also satisfies one or a combination of the following requirements: Firstly, the external air inlet 11.2 and / or the internal air inlet 11.3 is also provided with a height adjustment structure 11.6 capable of adjusting the height thereof, which is specifically a telescopic pipe capable of lifting or a pull pipe capable of relative pulling; Secondly, the ventilation device for the plastic greenhouse is also provided with a north-side ventilation pipe 11.7 passing through the north wall 2 and connecting the inside space of the greenhouse and the outside of the north wall 2; and the exhaust design is an optimized design structure based on the air inlet device on the south side; Thirdly, the ventilation device for the plastic greenhouse is also provided with a strong exhaust pump 11.5 connected to the ventilation pipe 11.1 and used for exhausting air outside or / and inside the greenhouse; wherein: The ventilation pipe 11.1 connecting the inside of the greenhouse and the space outside the south wall 1 is provided with a strong exhaust pump 11.5 used for exhausting air into the greenhouse; The ventilation pipe 11.1 connecting the inside of the greenhouse and the space outside the north wall 1 is provided with a strong exhaust pump 11.5 used for exhausting air outside the greenhouse; the active opening of the forced ventilation can significantly improve the efficiency; Fourthly, the ventilation device for the plastic greenhouse is also provided with a ventilation pipe heat preservation layer 11.8 arranged outside the ventilation pipe outside the greenhouse or / and underground; so as to prevent freezing and heat preservation of the outdoor part of the pipe; Fifthly, the outlet of the ventilation pipe 11.1 arranged outside the greenhouse, that is, the opening of the external air inlet 11.2, faces the ground or the south or the ground obliquely downward to the south side; Sixthly, the outlet of the ventilation pipe 11.1 arranged outside the greenhouse, that is, the opening of the external air inlet 11.2, is provided with a door curtain 11.2a, and a frost prevention structure 11.2b is arranged between the door curtain 11.2a and the tubular body of the external air inlet 11.2; the frost prevention structure 11.2b is a ring-shaped hot water pipe 9.3 connected to a hot water source and capable of circulating hot water; so as to prevent the ventilation pipe from being frozen and unable to open the ventilation passage; The plastic greenhouse ventilation device ingeniously realizes the extraction of fresh air from the outside to the inside of the greenhouse without damaging the light surface of the south wall, and sets a structure for forced exhaust outside the north wall; it is also provided with a keep ring switch, a strong exhaust pump 11.5 and the like to open the switch according to the demand and improve the air intake and exhaust efficiency. The plastic greenhouse ventilation device has simple structure, excellent technical effect and good comprehensive benefit.
[0020] The high-arch plastic greenhouse is also provided with a combined heat preservation structure for plastic greenhouse; the combined heat preservation structure for plastic greenhouse is particularly used for replacing the existing heat preservation layer 7 used inside or outside the greenhouse; and the combined heat preservation structure for plastic greenhouse comprises elastic strip-shaped unit bases 5.1 and elastic strip fixing members 5.2; wherein: a plurality of elastic strip-shaped unit bases 5.1 are combined and connected into an integrated combined heat preservation structure through the elastic strip fixing members 5.2; at least one elastic strip fixing member 5.2 is connected between two adjacent elastic strip-shaped unit bases 5.1; the elastic strip-shaped unit base 5.1 is provided with an anti-disengagement connecting groove 5.1a with a large inner diameter and a small outer diameter in the transverse direction, and the elastic strip fixing member 5.2 comprises a rigid convex strip 5.2a, a base 5.2b and a mounting strip 5.2c; wherein: the rigid convex strip 5.2a is fixedly connected with the base 5.2b as a whole, and the rigid convex strip 5.2a is provided with an embedding structure corresponding to the anti-disengagement connecting groove 5.1a; the base 5.2b is fixedly arranged on the mounting strip 5.2c; and the mounting strip 5.2c is fixedly arranged on the elastic strip-shaped unit base 5.1.
[0021] The combined heat preservation structure for plastic greenhouse also satisfies one or a combination of the following requirements: Firstly, the adhesive layer 2.3 is also pre-buried with a base cloth 5.3; the base 5.2b is fixed with the base cloth 5.3 through a nylon cloth 5.4 or directly fixed with the base cloth 5.3; and the elastic strip fixing member 5.2 fixedly connects the elastic strip-shaped unit base 5.1 and the base cloth 5.3 as a whole; Secondly, in the combined heat preservation structure for plastic greenhouse, the base cloth 5.3 is provided with a pre-buried member 5.5, which can be directly fixed on the base cloth 5.3 or fixed on the base cloth 5.3 through other connecting members; Thirdly, in the combined heat preservation structure for plastic greenhouse, the protruding part of the rigid convex strip 5.2a has one of the following cross-sectional shapes: a triangle; wherein: one corner extends away from the base 5.2b in the forward direction; the opposite side of the corner is connected with the base 5.2b as a whole; and the angle of the corner extending forward is 5°~160°; a semicircle; wherein: the arc part extends away from the base 5.2b in the forward direction, and the chord length part is connected with the base 5.2b as a whole; trapezoidal; wherein: the trapezoidal is that the longer bottom of the two parallel bottoms extends away from the base 5.2b, and the other bottom is connected with the base 5.2b as a whole; or the trapezoidal is that the shorter bottom of the two parallel bottoms extends away from the base 5.2b, and the other bottom is connected with the base 5.2b as a whole; "T" type; wherein: the upper large head of the "T" type extends away from the base 5.2b, and the lower part of the "T" type is connected with the base 5.2b as a whole; arrow type; wherein: the arrowhead points to the side away from the base 5.2b, and the arrow structure has single-row or double-row or multi-row structure; Fourthly, in the combined heat preservation structure for the plastic greenhouse, the gap between the plurality of elastic strip-shaped unit bases 5.1 is varied between 1mm and 20mm, and the gap between the adjacent two elastic strip-shaped unit bases 5.1 is provided with a sealing edge 5.5, the sealing edge 5.5 is fixed on the side wall of one of the elastic strip-shaped unit bases 5.1, and the convex part of the elastic strip-shaped unit base 5.1 is arranged in close contact with the side wall of the other elastic strip-shaped unit base 5.1 to form a sealing structure.
[0022] The combined heat preservation structure for the plastic greenhouse can realize good expansion performance of the heat preservation layer while still maintaining the thickness substantially unchanged, and the overall surface still maintains flatness. The combined heat preservation structure for the plastic greenhouse can be used arbitrarily according to needs, is convenient to disassemble and maintain, and can replace part of the structure to realize maintenance and repair. The combined heat preservation structure for the plastic greenhouse has strong operability, high cost performance, and excellent comprehensive technical effect.
[0023] The high-arched plastic greenhouse further comprises a plastic greenhouse superimposed heat preservation plate, which is fixedly connected with the installation base, i.e., the bearing frame 2.1, as a whole. The plastic greenhouse superimposed heat preservation plate is formed by superimposing a plurality of heat preservation layers 2.2, and the number n of the heat preservation layers 2.2 is greater than or equal to 2. An adhesive layer 2.3 is arranged between the adjacent two heat preservation layers 2.2, and the number of the adhesive layers 2.3 is n-1. The adhesive layer 2.3 physically separates the heat preservation layers 2.2.
[0024] The plastic greenhouse superimposed heat preservation plate further satisfies one or a combination of the following requirements: Firstly, in the plastic greenhouse superimposed heat preservation plate, the heat preservation layer 2.2 and the adhesive layer 2.3 are both fixed on the bearing frame 2.1. The bearing frame 2.1 is embedded in the heat preservation layer 2.2 or / and the adhesive layer 2.3 or arranged on one side in the greenhouse. The purpose of not using the filling structure is to avoid the cold bridge and facilitate heat diffusion outside the greenhouse. Secondly, in the plastic greenhouse superimposed insulation board, the side of the thermal insulation layer 2.2.2 close to the bonding layer 2.3 is provided with a dovetail groove, the bonding layer 2.3 is a cement mortar layer prepared by pouring, which penetrates into the dovetail groove of the thermal insulation layer 2.2.2 on both sides to form a stable support connection structure; the north wall 2 and the east and west side walls 6 are combined wall structures; and the plastic greenhouse superimposed insulation board has good thermal insulation effect and better support stiffness. Thirdly, in the plastic greenhouse superimposed insulation board, the side edges of the entire plastic greenhouse superimposed insulation board are provided with a concave-convex matching structure 2.4 between the adjacent two insulation boards. Fourthly, in the plastic greenhouse superimposed insulation board, the bonding layer 2.3 is a cement mortar layer; the bonding layer 2.3 is provided with a pre-embedded part 2.5; the pre-embedded part 2.5 is a plate-shaped structure or / and a connecting part 2.5, the connecting part 2.5 is a bolt or an expansion bolt or a rivet; the connecting part 2.5 embedded in the bonding layer 2.3 is away from the outer side of the thermal insulation layer 2.2.2, so as to prevent the occurrence of cold bridge and reduce heat dissipation as much as possible; the distance between the connecting part 2.5 and the outer side is greater than or equal to 1 cm. Fifthly, in the plastic greenhouse superimposed insulation board, the innermost side or / and the outermost surface of the thermal insulation layer 2.2.2 is provided with a surface protection layer 2.2a; so as to enhance the surface wear resistance and surface support stiffness thereof. Sixthly, the pre-embedded part 2.5 is one of the following structures or a combination thereof: a plate-shaped structure, a T-shaped structure, and a structure in which a plate and a pipe are vertically fixedly connected.
[0025] The plastic greenhouse superimposed insulation board has good thermal insulation effect, good fireproof effect and support strength; the dovetail groove can make the bonding layer 2.3 and the thermal insulation layer 2.2.2 have good combination strength; the surface protection layer 2.2a can better provide surface wear resistance and surface support stiffness; and the pre-embedded part 2.5 can help installation and arrangement while avoiding the occurrence of cold bridge. The present application has simple structure and excellent technical effect.
[0026] In the present application, a solar heat collecting device can also be arranged on the inner side of the north wall 2, and water or other medium can be used to store energy, so as to provide an energy source for indoor temperature compensation and outdoor ice and snow melting; other new unit technologies that can be applied to the plastic greenhouse can also be applied on this basis. The detailed content will not be described here.
[0027] The high-arch plastic greenhouse uses an arch-shaped top structure, and creatively applies multiple structure units with innovative features to the plastic greenhouse, which has strong practicability and operability; the technical details are relatively simple, and the comprehensive technical effect is excellent. BRIEF DESCRIPTION OF DRAWINGS
[0028] Figure 1 It is a schematic diagram of the plastic greenhouse insulation layer rolling system structure. Figure 2 for Figure 1 enlarged view of the middle part; Figure 3 for Figure 1 enlarged view of the upper right corner; Figure 4 for the overall structure of the ventilation device for the plastic greenhouse according to Embodiment 1; Figure 5 for the structure of the air inlet device arranged at the south wall 1 in the ventilation device for the plastic greenhouse according to Embodiment 1; Figure 6 for the structure of the air outlet device arranged at the north wall 2 in the ventilation device for the plastic greenhouse according to Embodiment 1; Figure 7 for the structure of the ice and snow melting device for the plastic greenhouse according to Embodiment 1 using the "S" type pipe clamp 12.2a; Figure 8 for the structure of the ice and snow melting device for the plastic greenhouse according to Embodiment 2 using the "W" type pipe clamp 12.2b; Figure 9 for the cooperation arrangement principle between the auxiliary fixing structure 12.2 with the cross section shape of "H" type structure or "X" type structure and the roof support pipe 3.1 when the cross section shape of the roof support pipe 3.1 is square pipe type; Figure 10 for the structure of the superimposed insulation board for the plastic greenhouse according to Embodiment 1; Figure 11 for Figure 10 enlarged view of the upper right corner; Figure 12 for the structure of the combined insulation structure for the plastic greenhouse according to Embodiment 1; Figure 13 for the structure of the elastic strip fixing member 5.2 in Embodiment 2.
[0029] Figure 14 for the cross section of the elastic strip unit base 5.1; Figure 15 for the structure of the protruding part of the rigid convex strip 5.2a with the cross section shape of triangle; Figure 16 for the structure of the protruding part of the rigid convex strip 5.2a with the cross section shape of single row arrow type; Figure 17 for the structure of the protruding part of the rigid convex strip 5.2a with the cross section shape of double row arrow type. DETAILED DESCRIPTION
[0030] The present application is further described below in conjunction with the embodiments and the drawings of the specification, but is not limited thereto.
[0031] Embodiment 1 A high-arched plastic greenhouse is composed of a south wall 1, a north wall 2, a top support structure 3, a light-transmitting plastic film 4, a heat-insulating layer 7, and outer walls on both east and west sides of the plastic greenhouse, which requires sufficient structural strength and heat-insulating performance; wherein: the arch support structure 3 is arranged above the south wall 1 and the north wall 2, and together with the side walls arranged on the east and west sides, it forms the support framework of the high-arched plastic greenhouse; the light-transmitting plastic film 4 is arranged outside the arch support structure 3, and the heat-insulating layer 7 used outside the plastic greenhouse is arranged outside the light-transmitting plastic film 4. In the high-arched plastic greenhouse, the top support structure 3 above is an arch support structure, and its highest point is arranged above the north wall 2 or on the north wall 2 side above the space between the north wall 2 and the south wall 1. The high-arched plastic greenhouse is also provided with a heat-insulating layer winding system for conveniently winding and unwinding the heat-insulating layer 7, which includes a heat-insulating layer winding long rope 7.1, a heat-insulating layer winding long rope reel 7.2, a heat-insulating layer unwinding rope 7.3, and a heat-insulating layer unwinding rope reel 7.4; wherein: The heat-insulating layer winding long rope 7.1 for winding the heat-insulating layer 7 is a long rope with each two adjacent parts connected in series, one part of which is arranged outside the heat-insulating layer, and its end is arranged on the heat-insulating layer winding long rope reel 7.2 and can be wound or unwound by the heat-insulating layer winding long rope reel 7.2 as it rotates; the remaining part turns at the cylindrical structure of the heat-insulating layer winding and is arranged below the heat-insulating layer and directly fixed to the northernmost edge of the heat-insulating layer 7, i.e., the final parking position or the vicinity of the parking position after winding. The heat-insulating layer unwinding rope 7.3 is also a long rope with each two adjacent parts connected in series; one end of the heat-insulating layer unwinding rope 7.3 is fixedly arranged on the heat-insulating layer 7 on the south side of the highest point of the plastic greenhouse roof; when the heat-insulating layer 7 is wound with the heat-insulating layer winding long rope 7.1, most of which is wound on the heat-insulating layer winding long rope reel 7.2, so that the heat-insulating layer 7 is wound, the heat-insulating layer unwinding rope 7.3 can pull the wound heat-insulating layer 7 and make the wound cylindrical heat-insulating layer 7 be pulled to the south side of the highest point of the plastic greenhouse roof, and then the heat-insulating layer 7 rolls and unwinds under the pulling action of the heat-insulating layer unwinding rope 7.3 or / and under the action of gravity, and the heat-insulating layer 7 unwinds and plays a heat-insulating role for the entire plastic greenhouse; the other end of the heat-insulating layer unwinding rope 7.3 can be wound on the heat-insulating layer unwinding rope reel 7.4 in sequence; as the heat-insulating layer unwinding rope reel 7.4 rotates, the heat-insulating layer unwinding rope 7.3 can be wound on the heat-insulating layer unwinding rope reel 7.4 in sequence or separated from it.
[0032] The heat preservation layer winding long rope reel 7.2 is arranged at the most northern edge of the heat preservation layer 7 above the shed roof, and the heat preservation layer unwinding rope reel 7.4 is arranged above or obliquely above the shed roof, which can drag the entire heat preservation layer to the south and has a tendency to partially or completely unwind the entire heat preservation layer.
[0033] The heat preservation layer winding system for the plastic greenhouse further satisfies one or a combination of the following requirements: First, the installation bases of the heat preservation layer winding long rope reel 7.2 and the heat preservation layer unwinding rope reel 7.4 are independently arranged on the support framework of the plastic greenhouse. The heat preservation layer winding long rope reel 7.2, which is fixed with the heat preservation layer winding long rope 7.1 and is responsible for winding the heat preservation layer winding long rope 7.1, is arranged at the most northern edge of the heat preservation layer near the shed roof. The heat preservation layer unwinding rope reel 7.4, which is fixed with the heat preservation layer unwinding rope 7.3 and is responsible for winding the heat preservation layer unwinding rope 7.3, is arranged at the most southern edge of the heat preservation layer near the shed roof. Second, in the heat preservation layer winding system for the plastic greenhouse, an auxiliary redirection roller 7.5 is further arranged at the transition connection between the southern side of the entire plastic greenhouse and the shed roof above, which is used to help the heat preservation layer 7 smoothly pass through the place to the north side of the shed roof or to the south side of the shed roof. Third, the heat preservation layer 7 wound or unwound by the heat preservation layer winding system for the plastic greenhouse is an external heat preservation layer arranged outside the plastic greenhouse. The heat preservation layer winding long rope reel 7.2 and the heat preservation layer unwinding rope reel 7.4 are both directly or indirectly connected with power devices that drive their rotation. Fourth, the heat preservation layer 7 wound or unwound by the heat preservation layer winding system for the plastic greenhouse is an internal heat preservation layer arranged inside the transparent plastic film of the plastic greenhouse. The installation bases of the heat preservation layer winding long rope reel 7.2 and the heat preservation layer unwinding rope reel 7.4 are independently arranged on the support framework of the plastic greenhouse. The heat preservation layer winding long rope reel 7.2 is arranged at the final parking position or near the final parking position after the heat preservation layer 7 is wound. The heat preservation layer unwinding rope reel 7.4 is directly or indirectly arranged on the ground near the southern wall of the plastic greenhouse. One end of the heat preservation layer unwinding rope 7.3 is fixedly arranged at the lowermost edge of the internal heat preservation layer 7. The other end of the heat preservation layer unwinding rope 7.3 is fixed on the outer edge of the heat preservation layer unwinding rope reel 7.4 so that it can be sequentially wound on the heat preservation layer unwinding rope reel 7.4.
[0034] The heat preservation layer winding system for the plastic greenhouse has a simple structure and can flexibly and conveniently wind or unwind the heat preservation layer 7. It can also adapt to the arched plastic greenhouse, especially the highest point not being above the northern wall 2 but being a distance away from the southern side of the northern wall 2 and the northern wall 2. It can ensure that the winding and unwinding of the heat preservation layer 7 are both convenient to operate and have excellent technical effects.
[0035] The high-arched plastic greenhouse is also provided with a plastic greenhouse ice-melting and snow-removing device arranged at the plastic greenhouse support framework 3; the device comprises a hot water pipe 9.3 capable of being connected to hot water inside, and an auxiliary fixing structure 12.2 for fixing the hot water pipe 9.3 on the plastic greenhouse support framework; the ice-melting and snow-removing is assisted by hot water to facilitate the cleaning of accumulated snow and ice.
[0036] The auxiliary fixing structure 12.2 of the plastic greenhouse ice-melting and snow-removing device is a pipe clamp; it is fixedly arranged outside the plastic greenhouse support framework; the fixing structure between the auxiliary fixing structure 12.2 and the plastic greenhouse support framework 3 is one of the following structures or a combination thereof: a binding structure, a bonding structure, a magnetic attraction structure, a tubular ring-shaped wrapping structure, and a local ring-shaped half-wrapping structure greater than or equal to a semicircle. It can be simplified as a binding rope structure.
[0037] The plastic greenhouse ice-melting and snow-removing device also satisfies one of the following requirements or a combination thereof: Firstly, the auxiliary fixing structure 12.2 is an "S"-shaped pipe clamp 12.2a; the auxiliary fixing structure 12.2 is fixedly arranged on the roof support pipe 3.1 of the plastic greenhouse support framework 3; the hot water pipe 9.3 is located on the one-way outside of the roof support pipe 3.1; the "S"-shaped pipe clamp 12.2a is clamped on the corresponding contact part of the roof support pipe 3.1 on the plastic greenhouse support framework 3, and the central angle of the cross section is greater than 180° to prevent the auxiliary fixing structure 12.2 from falling off; Secondly, the auxiliary fixing structure 12.2 is a "W"-shaped pipe clamp 12.2b; the auxiliary fixing structure 12.2 is fixedly arranged on the roof support pipe 3.1 of the plastic greenhouse support framework 3; the hot water pipe 9.3 is located on the double-side outside of the roof support pipe 3.1; the "W"-shaped pipe clamp 12.2b is clamped on the corresponding contact part of the roof support pipe 3.1 on the plastic greenhouse support framework 3, and the central angle of the cross section is greater than 180° to prevent the auxiliary fixing structure 12.2 from falling off; Thirdly, the cross-sectional shape of the roof support pipe 3.1 in the plastic greenhouse support framework 3 conforms to one of the following structural features: a circular tube, a square tube, a channel steel, an H steel, and an angle steel; different structural forms of the roof support pipe 3.1 can be used, and the corresponding available auxiliary fixing structure 12.2 can be arranged; when the cross-sectional shape of the roof support pipe 3.1 in the plastic greenhouse support framework 3 is a square tube, the auxiliary fixing structure 12.2 is a structural member with a cross section in the shape of "H" or "X"; Fourthly, the inside of the roof support pipe 3.1 is also provided with a hot water pipe 9.3; the outside of the bag rope or the inside of the bag rope is also arranged with a hot water pipe 9.3; the bag rope is an external rope used for pressing the plastic film; Fifth, the cross-section of the hot water pipe 9.3 used in conjunction with the "S" type pipe clamp 12.2a or the "W" type pipe clamp 12.2b is circular, elliptical, semi-circular or square; the "S" type pipe clamp 12.2a or the "W" type pipe clamp 12.2b has a corresponding hot water pipe clamping structure and a ceiling support pipe 3.1 clamping structure at the point where it mates with the hot water pipe 9.3.
[0038] The aforementioned ice-melting and snow-removing device for plastic greenhouses can melt ice and snow in areas prone to accumulating ice and snow using hot water pipes 9.3, allowing the ice and snow to slide off automatically; even if they do not slide off automatically, they are easier to clean up; the overall technical effect is excellent. The device has a simple structure and is highly operable; the hot water pipes are connected to a hot water supply device, which can circulate hot water, improving its utilization rate; the hot water source can be a solar collector / electric heating device, etc.
[0039] The high-arched plastic greenhouse is also equipped with a ventilation system, which includes: a ventilation pipe 11.1, an external vent 11.2, and an internal vent 11.3. The ventilation pipe 11.1 connects the inside of the greenhouse to the outside atmosphere below the south wall 1 of the greenhouse, passing below the ground foundation. The external vent 11.2 is located outside the south wall 1 of the greenhouse. An on / off device 11.4 is installed at the internal vent 11.3. This ventilation system design ensures effective ventilation. There can be one or more external vents 11.2 and internal vents 11.3, which can share the ventilation pipe 11.1 or use their own independent ventilation pipes 11.1. The ventilation device for the plastic greenhouse also meets one or a combination of the following requirements: Firstly, the external air vent 11.2 and / or the internal air vent 11.3 are also equipped with a height adjustment structure 11.6 that can adjust its height, specifically a telescopic tube that can be raised and lowered or a pull-out tube that can be pulled out relatively. Secondly, the ventilation device for the plastic greenhouse is also equipped with a north ventilation pipe 11.7 that passes through the north wall 2 and connects the space inside the greenhouse with the outside of the north wall 2; the exhaust design is an optimized design structure based on the south air intake device. Thirdly, the ventilation device for the plastic greenhouse is also equipped with a forced exhaust pump 11.5 connected to the ventilation pipe 11.1 for exhausting air to the outside and / or inside of the greenhouse; wherein: A forced exhaust pump 11.5 for drawing air into the shed is installed on the plastic ventilation pipe 11.1 that connects the space inside the shed to the space outside the south wall 1. A powerful exhaust pump 11.5 is installed on the plastic ventilation pipe 11.1 that connects the space inside the shed and the space outside the north wall 1 to draw air out of the shed; actively activating the power ventilation can significantly improve efficiency. Fourth, the ventilation device for the plastic greenhouse is also equipped with a ventilation pipe insulation layer 11.8 located outside the ventilation pipe in the greenhouse or / and underground, so as to prevent freezing and keep the outdoor part of the pipe warm; Fifth, the outlet of the ventilation pipe 11.1 arranged outside the greenhouse, i.e. the opening of the external air vent 11.2, faces the ground or south or the ground diagonally downward to the south. Sixth, a curtain 11.2a is installed at the outlet of the ventilation pipe 11.1 outside the greenhouse, i.e., the opening of the external air vent 11.2. An antifreeze structure 11.2b is installed between the curtain 11.2a and the tubular body of the external air vent 11.2. The antifreeze structure 11.2b is a ring-shaped hot water pipe 9.3, which is connected to a hot water source and can circulate hot water to prevent the ventilation pipe from freezing and preventing the ventilation passage from being opened. The ventilation system for the plastic greenhouse cleverly draws fresh air from the outside into the greenhouse without damaging the south wall's light-transmitting surface, and features a forced exhaust structure on the north wall. It also includes a retaining ring switch and a forced exhaust pump (11.5) to allow for on / off operation as needed, improving air intake and exhaust efficiency. The ventilation system for the plastic greenhouse has a simple structure, excellent technical performance, and good overall benefits.
[0040] The high-arched plastic greenhouse is also equipped with a combined insulation structure for plastic greenhouses; this combined insulation structure is specifically used to replace the existing insulation layer 7 used inside or outside the greenhouse; it includes: elastic strip-shaped unit bases 5.1 and elastic strip fixing members 5.2; wherein: multiple elastic strip-shaped unit bases 5.1 are combined and connected into a whole combined insulation structure through elastic strip fixing members 5.2; adjacent two elastic strip-shaped unit bases 5.1 are connected by at least one elastic strip fixing member 5.2; elastic strip The elastic strip base 5.1 is provided with an anti-detachment connecting groove 5.1a with a larger inner diameter and a smaller outer diameter in the cross-sectional direction. The elastic strip fixing member 5.2 includes: a rigid protrusion 5.2a, a base 5.2b, and a mounting strip 5.2c; wherein: the rigid protrusion 5.2a and the base 5.2b are fixedly connected as one piece, and the rigid protrusion 5.2a is provided with an embedded structure corresponding to the anti-detachment connecting groove 5.1a; the base 5.2b is fixedly arranged on the mounting strip 5.2c; the mounting strip 5.2c is fixedly arranged on the elastic strip base 5.1.
[0041] The combined insulation structure for plastic greenhouses also meets one or a combination of the following requirements: Firstly, a base fabric 5.3 is pre-embedded in the adhesive layer 2.3; the base 5.2b is fixed by the nylon cloth 5.4 and the base fabric 5.3 or directly fixed to the base fabric 5.3; the elastic strip fastener 5.2 fixes the elastic strip-shaped unit base 5.1 and the base fabric 5.3 into one piece; Secondly, in the combined insulation structure for the plastic greenhouse, a pre-embedded part 5.5 is provided on the bottom fabric 5.3. The pre-embedded part 5.5 can be directly fixed on the bottom fabric 5.3 or fixed on the bottom fabric 5.3 through other connecting parts; Thirdly, in the combined insulation structure for the plastic greenhouse, the cross-sectional shape of the protruding part of the rigid convex strip 5.2a is one of the following: a triangle; wherein: one corner extends forward away from the base 5.2b; the opposite side of the corner is connected to the base 5.2b as a whole; the angle of the protruding corner is 5°~160°; A semicircle; wherein: the arc portion extends forward away from the base 5.2b, and the chord portion is connected to the base 5.2b as a whole; Trapezoid; wherein: the trapezoid is formed by the longer of the two parallel bases extending forward away from the base 5.2b, and the other base being connected to the base 5.2b as a whole; or the trapezoid is formed by the shorter of the two parallel bases extending forward away from the base 5.2b, and the other base being connected to the base 5.2b as a whole; The "T" shape is characterized by: the large head at the top of the "T" shape extending forward away from the base 5.2b; and the lower part of the "T" shape being integrated with the base 5.2b. Arrowhead shape; wherein: the arrowhead points away from the base 5.2b, and the arrowhead structure has a single row, two rows or multiple rows; Fourth, in the combined insulation structure for the plastic greenhouse, the gaps between multiple elastic strip-shaped unit bases 5.1 vary between 1mm and 20mm, and a sealing edge 5.5 is provided at the gap between two adjacent elastic strip-shaped unit bases 5.1. The sealing edge 5.5 is fixed on the side wall of one of the elastic strip-shaped unit bases 5.1, and the outer side of the protruding part of the elastic strip-shaped unit base 5.1 is arranged to closely adhere to the side wall of another elastic strip-shaped unit base 5.1 to form a sealing structure.
[0042] The aforementioned modular insulation structure for plastic greenhouses achieves good expansion and contraction performance of the insulation layer while maintaining a relatively constant thickness and a smooth overall surface. Furthermore, this modular insulation structure can be arbitrarily combined and used as needed, facilitating disassembly, maintenance, and replacement of parts for repair and upkeep; it is highly operable, cost-effective, and offers excellent overall technical performance.
[0043] The high-arched plastic greenhouse is also equipped with a stacked insulation board for the plastic greenhouse, which is fixedly connected to the installation foundation, i.e., the pressure-bearing frame 2.1. The stacked insulation board for the plastic greenhouse is a structure composed of multiple layers of insulation layers 2.2, with the number of insulation layers 2.2 n≥2. An adhesive layer 2.3 is provided between two adjacent insulation layers 2.2, and there are n-1 adhesive layers 2.3. An adhesive layer 2.3 is arranged between each pair of adjacent insulation layers 2.2 to physically separate the insulation layers 2.2.
[0044] The aforementioned superimposed insulation board for plastic greenhouses also meets one or a combination of the following requirements: Firstly, in the aforementioned superimposed insulation board for plastic greenhouses, both the insulation layer 2.2 and the adhesive layer 2.3 are fixed to the pressure-bearing frame 2.1; the pressure-bearing frame 2.1 is embedded in the insulation layer 2.2 and / or the adhesive layer 2.3 or arranged on one side inside the greenhouse; the purpose of not using a filled structure is to avoid cold bridges and facilitate heat diffusion to the outside of the greenhouse. Secondly, in the superimposed insulation board for the plastic greenhouse, the insulation layer 2.2 has a dovetail groove on the side facing the adhesive layer 2.3. The adhesive layer 2.3 is a cement mortar layer prepared by pouring, which seeps into the dovetail grooves of the insulation layers 2.2 on both sides to form a stable support connection structure; the north wall 2 and the east and west side walls 6 are composite wall structures; it has good insulation effect and good support rigidity; Thirdly, in the aforementioned superimposed insulation board for plastic greenhouses, the side edge of the entire superimposed insulation board for plastic greenhouses is provided with a convex-concave mating structure 2.4 between two adjacent insulation boards; Fourth, in the superimposed insulation board for the plastic greenhouse, the adhesive layer 2.3 is a cement mortar layer; embedded parts 2.5 are provided in the adhesive layer 2.3; the embedded parts 2.5 are plate-shaped structural components and / or connectors 2.5, the connectors 2.5 are bolts, expansion bolts or rivets; the embedded connectors 2.5 in the adhesive layer 2.3 are far away from the outer surface of the insulation layer 2.2 in order to prevent cold bridges and minimize heat dissipation by being as close to the inside as possible; the distance between the connectors 2.5 and the outer surface is ≥1cm; Fifth, in the superimposed insulation board for the plastic greenhouse, a surface protective layer 2.2a is provided on the innermost and / or outermost surface of the insulation layer 2.2 to enhance its surface wear resistance and surface support rigidity; Sixth, the embedded part 2.5 is specifically one of the following structures or a combination thereof: plate-shaped structural parts, T-shaped structural parts, and structures in which the plate and the pipe are vertically fixed and connected as one unit.
[0045] The superimposed insulation board used in the plastic greenhouse has good thermal insulation effect, as well as good fire resistance and supporting strength. The dovetail groove design ensures good bonding strength between the adhesive layer 2.3 and the insulation layer 2.2. The surface protective layer 2.2a provides better surface wear resistance and surface supporting rigidity. The embedded part 2.5 avoids cold bridging and facilitates installation. This invention has a simple structure and excellent technical performance.
[0046] The high-arched plastic greenhouse described in this embodiment uses an arched top structure, creatively applying multiple innovative structural units to the greenhouse. It is highly practical and operable; the technical details are relatively simple, and the overall technical effect is excellent.
[0047] The scope of protection of the technical content claimed by this invention includes, but is not limited to, the scope of the technical content described in this specification, and other technical content extended thereon is also within the scope of protection.
Claims
1. A high-arch plastic greenhouse, which is composed of a south wall (1), a north wall (2), a top support structure (3), a light-transmitting plastic film (4), a heat-insulating layer (7), and a side wall, wherein: The arched roof support structure (3) is arranged above the south wall (1) and the north wall (2) and forms a support framework of the high-arched roof plastic greenhouse together with the side walls arranged on the east and west sides; the light-transmitting plastic film (4) is arranged outside the arched roof support structure (3), the light-transmitting plastic film (4) is arranged outside the arched roof support structure (3) or the south wall (1), and the heat preservation layer (7) used outside the plastic greenhouse is arranged outside the light-transmitting plastic film (4); characterized in that: In the high-arched roof plastic greenhouse, the top support structure (3) above is an arched roof support structure, the highest point of which is arranged above the north wall (2) or on the north wall (2) side of the space between the north wall (2) and the south wall (1); The high-arched roof plastic greenhouse is also provided with a heat preservation layer winding system for conveniently winding and unwinding the heat preservation layer (7), which comprises a heat preservation layer winding long rope (7.1), a heat preservation layer winding long rope winding shaft (7.2), a heat preservation layer unwinding rope (7.3), and a heat preservation layer unwinding rope shaft (7.4); wherein: The heat preservation layer winding long rope (7.1) for winding the heat preservation layer (7) is a long rope with each two parts connected in sequence, one part of which is arranged outside the heat preservation layer, and the end thereof is arranged on the heat preservation layer winding long rope winding shaft (7.2) and can be wound or unwound by the heat preservation layer winding long rope winding shaft (7.2) with the rotation of the heat preservation layer winding long rope winding shaft (7.2); the remaining part is turned at the cylindrical structure of the wound heat preservation layer and arranged below the heat preservation layer and directly fixed to the most northern edge of the heat preservation layer (7), that is, the final parking position or the parking position near the wound heat preservation layer; The heat preservation layer unwinding rope (7.3) is also a long rope with each two parts connected in sequence; one end of the heat preservation layer unwinding rope (7.3) is fixedly arranged on the heat preservation layer (7) on the south side of the highest point of the entire plastic greenhouse roof; when the heat preservation layer 7 is wound on the heat preservation layer winding long rope winding shaft (7.2) with most of the heat preservation layer winding long rope (7.1) being wound, the heat preservation layer unwinding rope (7.3) can drag the wound heat preservation layer 7 and make the wound cylindrical heat preservation layer (7) be dragged to the south side of the highest point of the entire plastic greenhouse roof, and then the heat preservation layer 7 is rolled and unwound under the dragging action of the heat preservation layer unwinding rope (7.3) and / or under the action of gravity, and the heat preservation layer 7 is unwound and plays a heat preservation role on the entire plastic greenhouse; the other end of the heat preservation layer unwinding rope (7.3) can be sequentially wound on the heat preservation layer unwinding rope shaft (7.4); with the rotation of the heat preservation layer unwinding rope shaft (7.4), the heat preservation layer unwinding rope (7.3) can be sequentially wound on the heat preservation layer unwinding rope shaft (7.4) or separated from the heat preservation layer unwinding rope shaft (7.4); the heat preservation layer winding long rope winding shaft (7.2) is arranged at the most northern edge of the heat preservation layer (7) above the roof, and the heat preservation layer unwinding rope shaft (7.4) is arranged above or obliquely above the roof, which can drag the entire heat preservation layer to the south and has a tendency to partially or completely unwind the entire heat preservation layer.
2. The high-arched plastic greenhouse according to claim 1, characterized in that: The heat preservation layer winding system for the plastic greenhouse also meets one or a combination of the following requirements: One, the installation base of the heat preservation layer winding long rope reel (7.2) and the heat preservation layer unwinding rope reel (7.4) is independently fixed and arranged on the support framework of the plastic greenhouse; The heat preservation layer winding long rope reel (7.2) which is fixed with the heat preservation layer winding long rope (7.1) and is responsible for winding the heat preservation layer winding long rope (7.1) is arranged at the most north side near edge of the heat preservation layer near the roof of the greenhouse; The heat preservation layer unwinding rope reel (7.4) which is fixed with the heat preservation layer unwinding rope (7.3) and is responsible for; Second, in the heat preservation layer winding system for the plastic greenhouse, an auxiliary redirection cylinder (7.5) is further arranged at the south side of the entire plastic greenhouse and the transition connection between the upper roof, the auxiliary redirection cylinder (7.5) is used to help the heat preservation layer 7 to smoothly pass through the place to the north side of the roof or to the south side of the roof. Third, the heat preservation layer (7) wound or unwound by the heat preservation layer winding system for the plastic greenhouse is an external heat preservation layer arranged outside the plastic greenhouse; The heat preservation layer winding long rope reel (7.2) and the heat preservation layer unwinding rope reel (7.4) are directly or indirectly connected with a power device for driving the rotation thereof. Fourth, the heat preservation layer (7) wound or unwound by the heat preservation layer winding system for the plastic greenhouse is an internal heat preservation layer arranged inside the internal space of the light-transmitting plastic film of the plastic greenhouse; The installation base of the heat preservation layer winding long rope reel (7.2) and the heat preservation layer unwinding rope reel (7.4) is independently fixed and arranged on the support framework of the plastic greenhouse; The heat preservation layer winding long rope reel (7.2) is arranged at the final parking position or near the parking position after the heat preservation layer (7) is wound; The heat preservation layer unwinding rope reel (7.4) is directly or indirectly arranged on the ground near the south wall of the plastic greenhouse; One end of the heat preservation layer unwinding rope (7.3) is fixed and arranged at the lowermost edge of the internal heat preservation layer (7); The other end of the heat preservation layer unwinding rope (7.3) is fixed on the outer edge of the heat preservation layer unwinding rope reel (7.4) so that it can be sequentially wound on the heat preservation layer unwinding rope reel (7.4).
3. The high arched plastic tunnel as claimed in claim 1, wherein: The high-arch plastic greenhouse is further provided with a plastic greenhouse ice and snow melting device, which is arranged at the plastic greenhouse support framework (3); It comprises: a hot water pipe (9.3) capable of being connected to hot water inside, and an auxiliary fixing structure (12.2) for fixing the hot water pipe (9.3) on the plastic greenhouse support framework; The auxiliary fixing structure (12.2) in the plastic greenhouse ice and snow melting device is a pipe clamp; It is fixed and arranged outside the plastic greenhouse support framework; The fixing structure between the auxiliary fixing structure (12.2) and the plastic greenhouse support framework (3) is one of the following or a combination thereof: a binding structure, an adhesive structure, a magnetic attraction structure, a tubular ring wrapping structure, and a local ring half wrapping structure greater than or equal to a semicircle.
4. The high arched plastic tunnel according to claim 3, characterized in that: The plastic greenhouse ice and snow melting device also satisfies one of the following requirements or a combination thereof: One, the auxiliary fixing structure (12.2) is an "S" type pipe clamp (12.2a); the auxiliary fixing structure (12.2) is fixedly arranged on the roof support pipe (3.1) of the plastic greenhouse support framework (3); the hot water pipe (9.3) is located on the one-way outer side of the roof support pipe (3.1); the "S" type pipe clamp (12.2a) is clamped on the roof support pipe (3.1) of the plastic greenhouse support framework (3); the corresponding cross-sectional circle central angle of the contact part is greater than 180° to prevent the auxiliary fixing structure (12.2) from falling off; Two, the auxiliary fixing structure (12.2) is a "W" type pipe clamp (12.2b); the auxiliary fixing structure (12.2) is fixedly arranged on the roof support pipe (3.1) of the plastic greenhouse support framework (3); the hot water pipe (9.3) is located on the double-side outer side of the roof support pipe (3.1); the "W" type pipe clamp (12.2b) is clamped on the roof support pipe (3.1) of the plastic greenhouse support framework (3); the corresponding cross-sectional circle central angle of the contact part is greater than 180° to prevent the auxiliary fixing structure (12.2) from falling off; Three, the cross-sectional shape of the roof support pipe (3.1) in the plastic greenhouse support framework (3) meets one of the following structural characteristics: circular tube, square tube, channel steel, H steel, angle steel; when the cross-sectional shape of the roof support pipe (3.1) in the plastic greenhouse support framework (3) is square tube; the auxiliary fixing structure (12.2) is a structure with a cross-sectional "H" type structure or an "X" type structure; Four, the inside of the roof support pipe (3.1) is also provided with a hot water pipe (9.3); the outside of the sling or the inside of the sling is also provided with a hot water pipe (9.3); Five, the hot water pipe (9.3) used with the "S" type pipe clamp (12.2a) or the "W" type pipe clamp (12.2b) has a circular or elliptical or semicircular or square cross section; the "S" type pipe clamp (12.2a) or the "W" type pipe clamp (12.2b) has corresponding hot water pipe clamping structure and roof support pipe (3.1) clamping structure.
5. The high-arched plastic greenhouse according to claim 3, characterized in that: The high-arch plastic greenhouse is also provided with a plastic greenhouse ventilation device, which comprises: a ventilation pipe (11.1), an external air inlet (11.2), and an internal air inlet (11.3); wherein: the ventilation pipe (11.1) communicates the inside of the greenhouse with the atmosphere outside the south wall (1) of the greenhouse through the ground foundation surface below the south wall (1) of the greenhouse, that is, the external air inlet (11.2) is arranged outside the south wall (1) of the greenhouse; the internal air inlet (11.3) is provided with a switch device (11.4).
6. The high-arched plastic tunnel according to claim 5, characterized in that: The plastic greenhouse ventilation device also meets one or a combination of the following requirements: One, the external air inlet (11.2) or / and the internal air inlet (11.3) is also provided with a height adjusting structure (11.6) that can adjust its height, which is specifically a telescopic pipe that can be lifted or a pull pipe that can be relatively pulled; Two, the plastic greenhouse ventilation device is also provided with a north side ventilation pipe (11.7) that passes through the north wall (2) and communicates the inside of the greenhouse with the outside of the north wall (2). Thirdly, the ventilation device for the plastic greenhouse is further provided with a strong exhaust pump (11.5) connected with the ventilation pipe (11.1) and used for exhausting air outside or / and inside the greenhouse; The ventilation pipe (11.1) connected with the inside of the greenhouse and the outside of the south wall (1) is provided with the strong exhaust pump (11.5) used for exhausting air inside the greenhouse; The ventilation pipe (11.1) connected with the inside of the greenhouse and the outside of the north wall (1) is provided with the strong exhaust pump (11.5) used for exhausting air outside the greenhouse; Fourthly, the ventilation device for the plastic greenhouse is further provided with a ventilation pipe heat preservation layer (11.8) arranged outside the ventilation pipe and underground or / and outside the greenhouse; Fifthly, the opening of the outlet, i.e. the external air outlet (11.2), of the ventilation pipe (11.1) arranged outside the greenhouse faces the ground or the south or the ground obliquely downward to the south; Sixthly, the opening of the outlet, i.e. the external air outlet (11.2), of the ventilation pipe (11.1) arranged outside the greenhouse is provided with a door curtain (11.2a), and a frost prevention structure (11.2b) is arranged between the door curtain (11.2a) and the tubular main body of the external air outlet (11.2); the frost prevention structure (11.2b) is a ring-shaped hot water pipe (9.3) connected with a hot water source.
7. The high-arched plastic tunnel according to claim 1, characterized in that: The high-arch plastic greenhouse is further provided with a combined heat preservation structure for the plastic greenhouse, which is used for replacing the existing heat preservation layer (5) used inside or outside the greenhouse and comprises: an elastic strip-shaped unit base body (5.1) and an elastic strip fixing member (5.2); wherein: a plurality of elastic strip-shaped unit base bodies (5.1) are combined and connected into an integrated combined heat preservation structure by the elastic strip fixing member (5.2); two adjacent elastic strip-shaped unit base bodies (5.1) are connected by at least one elastic strip fixing member (5.2); the elastic strip-shaped unit base body (5.1) is provided with a anti-disengagement connecting groove (5.1a) with a large inner diameter and a small outer diameter in the cross-sectional direction, and the elastic strip fixing member (5.2) comprises: a rigid protruding strip (5.2a), a base (5.2b), and a mounting strip (5.2c); wherein: the rigid protruding strip (5.2a) is fixedly connected with the base (5.2b) as a whole, and the rigid protruding strip (5.2a) is provided with an embedded structure corresponding to the anti-disengagement connecting groove (5.1a); the base (5.2b) is fixedly arranged on the mounting strip (5.2c); and the mounting strip (5.2c) is fixedly arranged on the elastic strip-shaped unit base body (5.1).
8. The high-arched plastic tunnel according to claim 7, characterized in that: The combined heat preservation structure for the plastic greenhouse further satisfies one or a combination of the following requirements: Firstly, a base cloth (5.3) is embedded in the adhesive layer (2.3); the base (5.2b) is fixed with the base cloth (5.3) directly or through a nylon cloth (5.4); and the elastic strip fixing member (5.2) fixedly connects the elastic strip-shaped unit base body (5.1) and the base cloth (5.3) as a whole; Secondly, the combined heat preservation structure for the plastic greenhouse is provided with a pre-embedded part (5.5) on the base cloth (5.3), which can be fixed on the base cloth (5.3) directly or through other connecting members; Third, the plastic greenhouse combined with the structure, the rigid convex strip (5.2a) protruding part cross-sectional shape is one of the following: triangle; wherein: one corner forward away from the base (5.2b) stretch out; the opposite side of the corner and the base (5.2b) is integrated; the angle of the corner stretching forward is 5°~160°; semicircular; wherein: the circular arc part forward away from the base (5.2b) stretch out, chord length part and the base (5.2b) is integrated; trapezoidal; wherein: the trapezoidal is the longer side of the two parallel sides forward away from the base (5.2b) stretch out, the other side and the base (5.2b) is integrated; or the trapezoidal is the shorter side of the two parallel sides forward away from the base (5.2b) stretch out, the other side and the base (5.2b) is integrated; "T" type; wherein: the big head of "T" type upper part forward away from the base (5.2b) stretch out, "T" type lower part and the base (5.2b) is integrated; arrow type; wherein: the arrowhead points to the side away from the base (5.2b), the arrow structure has single row or two rows or multiple rows structure; Fourth, the plastic greenhouse combined with the structure, the gap between the plurality of elastic strip unit base body (5.1) between each other changes between 1mm~20mm, and the gap between the two adjacent elastic strip unit base body (5.1) between each other is provided with sealing edge (5.5), sealing edge (5.5) is fixed on one of the elastic strip unit base body (5.1) side wall, the protruding part of the elastic strip unit base body (5.1) outside closely arranged with the side wall of another elastic strip unit base body (5.1) to form a sealed structure.
9. The high-arched plastic tunnel according to claim 1, characterized in that: The high arch plastic greenhouse is also provided with a plastic greenhouse superposition heat preservation plate, which is fixedly connected with the installation foundation, i.e. the bearing frame (2.1) as a whole; the plastic greenhouse superposition heat preservation plate is formed by the superposition of a plurality of heat preservation layers (2.2), and the number of heat preservation layers (2.2) is n≥2; an adhesive layer (2.3) is arranged between the two adjacent heat preservation layers (2.2), and the adhesive layer (2.3) has n-1 layers.
10. The high-arched plastic tunnel according to claim 9, characterized in that: The plastic greenhouse superposition heat preservation plate also satisfies one or a combination of the following requirements: First, in the plastic greenhouse superposition heat preservation plate, the heat preservation layer (2.2) and the adhesive layer (2.3) are both fixed on the bearing frame (2.1); the bearing frame (2.1) is embedded in the heat preservation layer (2.2) or / and the adhesive layer (2.3) or arranged on one side in the greenhouse; Second, in the plastic greenhouse superposition heat preservation plate, the side surface of the heat preservation layer (2.2) close to the adhesive layer (2.3) is provided with a dovetail groove, and the adhesive layer (2.3) is a cement mortar layer formed by pouring, which penetrates into the dovetail grooves of the two heat preservation layers (2.2) to form a stable support connection structure; Third, in the plastic greenhouse superposition heat preservation plate, the side edges of the whole plastic greenhouse superposition heat preservation plate are provided with a concave-convex matching structure (2.4) between the two adjacent heat preservation plates. Fourth, the plastic greenhouse with superimposed insulation board, the adhesive layer (2.3) is a cement mortar layer; the adhesive layer (2.3) is provided with a pre-embedded part (2.5); the pre-embedded part (2.5) is a plate-shaped structural part or / and a connecting part (2.5), the connecting part (2.5) is a bolt or an expansion bolt or a rivet; the connecting part (2.5) embedded in the adhesive layer (2.3) is away from the outer side of the insulation layer (2.2), and the distance between the connecting part (2.5) and the outer side is greater than or equal to 1 cm; Fifth, the plastic greenhouse with superimposed insulation board, the innermost side or / and the outermost layer of the insulation layer (2.2) is provided with a surface protection layer (2.2a); Sixth, the pre-embedded part (2.5) is one of the following structures or a combination structure: a plate-shaped structural part, a T-shaped structural part, and a structure in which a plate and a pipe are vertically fixedly connected as a whole.