CN112673865A

CN112673865A - Movable telescopic greenhouse

Info

Publication number: CN112673865A
Application number: CN202110097421.0A
Authority: CN
Inventors: 王朝晖; 唐琛晨; 桂青; 陈命男; 史云鹏
Original assignee: Shanghai Investigation Design and Research Institute Co Ltd SIDRI
Current assignee: Shanghai Investigation Design and Research Institute Co Ltd SIDRI
Priority date: 2021-01-25
Filing date: 2021-01-25
Publication date: 2021-04-20

Abstract

The invention relates to a movable telescopic greenhouse, which comprises a greenhouse body, a covering layer and two parallel bottom plates, wherein the covering layer covers the greenhouse body, the two bottom plates are symmetrically arranged left and right and are parallel to each other, the length direction of each bottom plate is along the front-back direction, the greenhouse body comprises a plurality of supporting units which are arranged on the bottom plates and are arranged along the front-back direction, each supporting unit comprises two side supporting frames and a greenhouse top arched beam, the two side supporting frames are respectively arranged on the two bottom plates, the side supporting frames can move back and forth on the bottom plates, and two ends of the greenhouse top arched beam are respectively arranged on the two side supporting frames; the covering layer is connected with the side supporting frames of the supporting units and the shed roof arched beams and stretches along with the movement of the supporting units. The movable telescopic greenhouse can be flexibly opened or closed according to requirements, is flexible to use, and is prevented from being damaged in strong wind and snow days.

Description

Movable telescopic greenhouse

Technical Field

The invention relates to the technical field of agriculture, in particular to a movable telescopic greenhouse.

Background

The 'greenhouse vegetable' industry becomes a new economic growth point in cities and rural areas in China and becomes a new direction for adjusting the industrial structure. The vegetable greenhouse takes the lighting covering material as a whole or partial enclosure structure, can be used for building plants in winter or other seasons which are not suitable for open plant growth, and is tens of thousands of in all parts of the country, and has very wide application. At present, most of vegetable greenhouses are steel structure greenhouses, bamboo greenhouses and the like, and plastic is used as a cover and is a fixed greenhouse. The greenhouse is a frame film-covered structure with excellent heat preservation performance, and the appearance of the greenhouse not only increases the yield of vegetables, but also enables people to eat out-of-season vegetables. The common vegetable greenhouse uses a bamboo structure or a steel structure framework, and one or more layers of heat-insulating plastic films are covered on the framework, so that a greenhouse space is formed. The outer film can well prevent the loss of carbon dioxide generated by the growth of the vegetables inside, so that the greenhouse has a good heat preservation effect.

At present, fixed greenhouses are used, the greenhouses are easily damaged in typhoons and heavy snow, and severe damage to agricultural facilities is frequently caused by severe weather at present. When gushing wind, the fixed greenhouse cannot be moved and disassembled, the greenhouse is easily blown over or the greenhouse is crushed by snow, vegetable farmers are disastrous, and the collapsed greenhouse frame is pressed on tender vegetables and secondarily harms the vegetables. The greenhouse damaged by typhoon and heavy snow is thousands of every year, and the collapse of the greenhouse causes the shortage of vegetables and influences on the life of people. Secondly, the fixed greenhouse cannot be opened in seasons and time periods when the greenhouse is not needed, and natural planting is carried out; or the greenhouse is opened at night to allow the vegetables to directly bear rain and dew; therefore, the greenhouse is not beneficial to the growth of vegetables, natural rain and dew and sunlight can not be utilized timely according to seasons or time intervals, and compared with the open air, the greenhouse has the defects of low illumination, large temperature difference, large humidity, insufficient carbon dioxide, slow air flow, accumulated surface soil salt and the like, and the defects need to be improved by technical means. That is, in a proper season, in a proper time period, "field vegetables" produced by the conventional vegetable planting method are more suitable.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, the present invention provides a mobile retractable greenhouse, which can be flexibly opened or closed and is flexible to use.

In order to achieve the purpose, the invention provides a movable telescopic greenhouse, which comprises a greenhouse body, a covering layer and two parallel bottom plates, wherein the covering layer covers the greenhouse body, the two bottom plates are symmetrically arranged left and right and are parallel to each other, the length direction of each bottom plate is along the front-back direction, the greenhouse body comprises a plurality of supporting units which are arranged on the bottom plates and are arranged along the front-back direction, each supporting unit comprises two side supporting frames and a greenhouse top arched beam, the two side supporting frames are respectively arranged on the two bottom plates, the side supporting frames can move back and forth on the bottom plates, and two ends of the greenhouse top arched beam are respectively arranged on the two side supporting frames; the covering layer is connected with the side supporting frames of the supporting units and the shed roof arched beams and stretches along with the movement of the supporting units.

Further, the covering layer is a plastic film, a sun-shading cloth or a waterproof cloth.

Furthermore, the side support frame comprises two side columns symmetrically arranged left and right and a top beam fixed at the tops of the two side columns, and the beam end of the shed roof arched beam is installed on the top beam.

Furthermore, the upper ends of the side supporting frames are provided with lifting lugs, bolt holes are formed in the two ends of the shed roof arched beam, and the shed roof arched beam penetrates through the bolt holes by adopting connecting bolts to be connected with the lifting lugs.

Furthermore, the side support frame is provided with reverse hooks at the left side and the right side of the bottom, the left side and the right side of the bottom plate are provided with the cantilever plate, and the reverse hooks are clamped on the cantilever plate and can slide back and forth along the cantilever plate.

Further, the canopy body still includes scalable coupling mechanism, scalable coupling mechanism sets up between two adjacent side support frames on same bottom plate, and both sides are connected with two side support frames respectively around scalable coupling mechanism, scalable coupling mechanism can stretch out and draw back in the front and back direction.

Furthermore, the telescopic connection mechanism is a cross inclined strut mechanism and comprises two cross inclined struts, the middle parts of the cross inclined struts are hinged, one ends of the cross inclined struts are hinged on one side support frame, and the other ends of the cross inclined struts are arranged on the other side support frame in a vertically sliding mode.

Furthermore, a sliding groove is formed in the upper end of the side support frame, a sliding shaft is arranged at the upper end of the cross inclined support, and the sliding shaft is installed in the sliding groove and can move up and down along the sliding groove.

The greenhouse further comprises a walking driving mechanism, wherein the walking driving mechanism is arranged on the two side supporting frames of the foremost supporting unit and used for driving the side supporting frames to move back and forth on the bottom plate so as to drive the greenhouse to stretch.

Furthermore, the warehouse also comprises a warehouse, one ends of the two bottom plates are positioned in the warehouse, and the supporting units can be accommodated by the warehouse after moving towards the warehouse and closing.

As described above, the mobile retractable greenhouse according to the present invention has the following advantages:

by arranging the two bottom plates and the shed body consisting of the plurality of supporting units arranged in the front-back direction, when the shed body needs to be opened for use, the two side supporting frames of the supporting units are pushed to respectively move forwards on the two bottom plates, the proper distance is kept between the adjacent supporting units, the telescopic greenhouse is opened by moving, and the corresponding locking mechanisms can be arranged to lock the positions of the supporting units. When the movable telescopic greenhouse needs to be folded, the two side supporting frames of the supporting units are pushed to move backwards on the bottom plate respectively, all the supporting units are closed together, and the covering layer between the adjacent supporting units is folded, so that the movable telescopic greenhouse can be folded. The movable telescopic greenhouse can be flexibly opened or closed according to requirements, is flexible to use, and is not easy to damage in windy and rainy days.

Drawings

Fig. 1 is an elevation view showing an opened state of the mobile retractable greenhouse of the present invention.

Fig. 2 is a schematic structural diagram of the supporting unit of the present invention.

Fig. 3 is a schematic structural view of a side support frame of the present invention.

Fig. 4 is a schematic view of the engagement between the reverse hook and the bottom plate in the present invention.

Fig. 5 is a schematic view of the installation of the retractable connecting mechanism and the supporting unit in the present invention.

Fig. 6 is a schematic view of the connection of the shed roof arched beam and the side support frame in the present invention.

Description of the element reference numerals

1 base plate

1a cantilever plate

2 support unit

21 side support frame

211 side column

212 roof beam

213 chute

214 road wheel

215 reverse hook

216 middle beam

22 shed roof arched girder

22a bolt hole

23 lifting lug

24 connecting bolt

3 coating layer

4 telescopic connecting mechanism

41 cross bracing

42 middle hinge shaft

43 fixed hinge shaft

44 sliding shaft

5 traveling driving mechanism

6 gable

7 warehouse

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.

It should be understood that the structures, proportions, and dimensions shown in the drawings and described herein are for illustrative purposes only and are not intended to limit the scope of the present invention, which is defined by the claims, but rather by the claims. In addition, the terms such as "upper", "lower", "left", "right" and "middle" used in the present specification are for convenience of description only, and are not intended to limit the scope of the present invention, and changes or modifications of the relative relationship thereof may be regarded as the scope of the present invention without substantial changes in the technical contents.

Referring to fig. 1 to 6, the invention provides a movable telescopic greenhouse, which comprises a greenhouse body, a covering layer 3 covering the greenhouse body, and two bottom plates 1 symmetrically arranged left and right and parallel to each other, wherein the length direction of the bottom plates 1 is along the front-back direction, the greenhouse body comprises a plurality of supporting units 2 arranged on the bottom plates 1 and arranged along the front-back direction, the supporting units 2 are parallel to each other, each supporting unit 2 comprises two side supporting frames 21 and a roof arch beam 22, the two side supporting frames 21 are respectively arranged on the two bottom plates 1, the side supporting frames 21 can move back and forth on the bottom plates 1, and two ends of the roof arch beam 22 are respectively arranged on the two side supporting frames 21; the cover 3 is connected to both the side support frames 21 and the ceiling arch 22 of the support unit 2 and telescopes as the support unit 2 moves.

In the invention, the covering layer 3 can be a plastic film, a sun-shading cloth, a waterproof cloth or the like, which is determined according to the use requirement of the greenhouse. The cladding 3 may be adhesively mounted on the outside of the side brackets 21 and the roof arch 22. The whole shed body is covered by the covering layer 3, wherein the covering layer 3 can be a whole block or formed by splicing a plurality of blocks. The covering of the covering 3 on the canopy body is substantially the same as in the prior art and will therefore not be described in greater detail, except that in this application the covering 3 is fixedly attached to both the side support frames 21 and the canopy arch 22 of the support unit 2 and is movable with the support unit 2.

The basic working principle of the movable telescopic greenhouse related by the invention is as follows: referring to fig. 2, a plurality of support units 2 are preferably arranged in parallel to each other to form a main frame of the housing, a roof arch 22 is spanned on two side support frames 21, and a space between the roof arch 22 and the two side support frames 21 is an in-house space. In use, by pushing the two side supporting frames 21 of the supporting unit 2 to move forward on the two bottom plates 1 respectively, the adjacent supporting units 2 keep a proper distance, the telescopic greenhouse can be opened by moving, and the corresponding locking mechanism can be arranged to lock the position of the supporting unit 2. When the movable telescopic greenhouse needs to be folded, the two side supporting frames 21 of the supporting units 2 are pushed to move backwards on the bottom plate 1 respectively, all the supporting units 2 are folded together, the covering layer 3 between the adjacent supporting units 2 is folded, and the movable telescopic greenhouse can be folded, so that the movable telescopic greenhouse can be stretched in the front-back direction. The movable telescopic greenhouse can be flexibly opened or closed according to requirements, is flexible to use, and is not easy to damage in windy and rainy days.

Referring to fig. 1 to 6, the present invention is further illustrated in a specific embodiment as follows:

in the present embodiment, referring to fig. 1, 2 and 3, the bottom plate 1 is disposed on the ground and located at the left and right sides of the greenhouse, and the length of the bottom plate 1 is determined according to the length of the greenhouse. The bottom plate 1 can be of a reinforced concrete structure, the top surface of the bottom plate 1 can be provided with a track for the side supporting frame 21 to walk as required, and related electric wires and the like can be embedded in the bottom plate 1.

In this embodiment, referring to fig. 1, 2 and 3, the covering layer 3 is a plastic film, and the greenhouse can be used for vegetable cultivation. Plastic film is adhered or otherwise attached to the outside of the side brackets 21 and the ceiling arch 22. Preferably, in order to facilitate the installation and the folding of the greenhouse, the plastic film is of a block structure, the top of the greenhouse formed by the arched beams 22 of the greenhouse top is bonded with one plastic film, the side supporting frames 21 on the two sides are bonded with one plastic film, the plastic films on the sides and the plastic film on the top are connected into a whole, and the plastic film on the top and the plastic films on the sides can be further spliced by a plurality of blocks. The specification and the size of the plastic film are determined by calculation according to actual conditions, and the front and back stretching directions of the plastic film are arranged according to the equidistant width. Preferably, the plastic films on the side supporting frames 21 are folded towards the inner side of the greenhouse to form a plurality of impressions, the plastic films on the arched beams 22 on the greenhouse top are operated in the same way and folded downwards to form a plurality of impressions, or flexible inhaul cables are additionally arranged, when the plastic films are folded along with the supporting units 2, the plastic films are like rain cloth of an umbrella and are folded or unfolded along with umbrella ribs, and the plastic films on the side surfaces and the top can be orderly folded together, so that the greenhouse is convenient to fold. When the distance between the two supporting units 2 is larger, the plastic film is preferably adhered with a reinforcing tape to increase the strength of the plastic film.

In the present embodiment, referring to fig. 2 and 3, as a preferred design, the side supporting frames 21 are made of two portal frames and section steel, and specifically include two side columns 211 symmetrically arranged left and right and a top beam 212 fixed on the top of the two side columns 211, and the end of the roof arch beam 22 is mounted on the top beam 212. The side support frame 21 is narrow at the top and wide at the bottom, is in an isosceles trapezoid shape, the length of the top bottom and the bottom is determined according to the requirement, and a middle beam 216 is arranged between the two side columns 211, so that the overall structural strength of the side support frame 21 is increased, and the load bearing capacity is good. The height of the side supporting frame 21 is not too high so as to meet the requirement of people on the operation at the side of the greenhouse, and can be about 1.0m generally. The maximum distance between the two support units 2 after being opened is generally 1.0-1.5 m, and is determined by integrating all the elements according to the strength requirements of the side support frames 21, the shed roof arched beams 22 and the plastic film, wherein the strength of the plastic film is a main factor for determining the distance between the support units 2.

In the present embodiment, referring to fig. 2 and 3, the ceiling arched beam 22 has an arched shape, but the ceiling arched beam 22 may have other shapes as needed. The shed roof arched girder 22 is a framework for supporting a plastic film on the top of a shed body and can be made of round steel pipes, and the shed roof arched girder 22 can be formed by a single pipe or two pipes in parallel and is selected after calculation according to the span, the borne load, the diameter of the steel pipes and the like. The arch height and span of the arched beam 22 of the shed roof are designed conventionally, and the steel pipes at two ends are compressed into flat shapes. In the preferred design, referring to fig. 3 and 6, the top beam 212 is provided with lifting lugs 23, bolt holes 22a are provided at both ends of the shed roof arched beam 22, and the shed roof arched beam 22 is connected with the lifting lugs 23 by connecting bolts 24 penetrating through the bolt holes 22 a. The arched beam 22 of the shed roof has two forms, one is that the middle of the arch is provided with a hinge, and the two ends of the arch are hinged with the side supporting frames 21 to form a three-hinged arch which is a static arch, when the arch height is large, the thrust is small, and when the arch height is small, the thrust is large; secondly, the middle of the arch is not provided with a hinge, and two ends of the arch are hinged with the side supporting frame 21 to form two hinged arches which are hyperstatic arches. Both forms of arched roof beams 22 are suitable for use in a shelter and generate horizontal thrust at the hinge at both ends, and therefore the side support frames 21 are designed to withstand this horizontal thrust.

In the present embodiment, referring to fig. 3, as a preferred design, the side support frame 21 is provided with walking wheels 214 at the lower ends of the two side columns 211, and the walking wheels 214 roll on the bottom plate 1, ensuring stable movement of the side support frame 21 on the bottom plate 1. Of course, the side support frame 21 may be moved on the base plate 1 by other means such as a slide rail. In this embodiment, referring to fig. 3, preferably, the side support frame 21 is provided with U-shaped reverse hooks 215 at the left and right sides of the bottom, the two reverse hooks 215 are specifically provided at the lower ends of the two side posts 211, the bottom plate 1 is provided with cantilever plates 1a at the left and right edges, the shape of the cantilever plate 1a is adapted to the shape of the reverse hooks 215, the two reverse hooks 215 are fastened to the cantilever plates 1a at the left and right sides of the bottom plate 1 and can slide back and forth along the cantilever plates 1a, the reverse hooks 215 have fastening and guiding functions, and the cantilever plates 1a on the bottom plate 1 are used during wind loading to provide resistance for the stability of the greenhouse under the side loading.

In this embodiment, referring to fig. 1, fig. 3 and fig. 5, as a preferred design, the canopy further includes a telescopic connecting mechanism 4, the telescopic connecting mechanism 4 is disposed between two adjacent side support frames 21 on the same bottom plate 1, and the front and rear sides of the telescopic connecting mechanism 4 are respectively connected to the two side support frames 21, and the telescopic connecting mechanism 4 can be extended and retracted in the front and rear direction. In the present embodiment, the retractable connecting mechanism 4 is a cross bracing mechanism, which includes two cross braces 41, the middle of the two cross braces 41 is hinged by a middle hinge shaft 42, specifically, referring to fig. 5, the lower end of one cross brace 41 is hinged on the front support frame by a fixed hinge shaft 43, the upper end is mounted on the rear support frame in a vertically slidable manner, the other cross brace 41 is opposite, the lower end is hinged on the rear support frame by a fixed hinge shaft 43, and the upper end is mounted on the front support frame in a vertically slidable manner, of course, the cross brace 41 may be hinged at the lower end and the upper end can be mounted in a vertically movable manner. Furthermore, the upper end of the side column 211 of the side support frame 21 is provided with a sliding groove 213, the upper end of the cross brace 41 is provided with a sliding shaft 44, and the sliding shaft 44 is installed in the sliding groove 213 and can move up and down along the sliding groove 213, thereby ensuring that the upper end of the cross brace 41 can slide smoothly. Force transmission is realized between the cross bracing mechanism and the supporting unit 2 through the fixed hinge shaft 43 and the sliding shaft 44.

In this embodiment, a telescopic cross bracing mechanism is adopted to connect two adjacent side supporting frames 21, and the cross bracing mechanism forms a telescopic member of the greenhouse body, on one hand, when the greenhouse is furled, as shown in fig. 5, only the first supporting unit 2 at the front end needs to be pushed to move backwards, the cross bracing mechanism can be gradually furled to drive the second supporting unit 2 at the front end to move backwards, according to the mode, all the supporting units 2 are gradually pushed to be close from front to back, and meanwhile, the cross bracing 41 can assist the furled plastic film, so that the greenhouse is furled more smoothly; on the other hand, in the greenhouse opening process, only the first supporting unit 2 at the front end needs to be pushed, two cross inclined struts 41 of the cross inclined strut mechanism are opened, the supporting unit 2 at the back is driven to move forwards in sequence through the cross inclined strut mechanism, the opening operation is realized, and under the greenhouse opening state, the cross inclined strut mechanism can play a role in stably connecting and supporting two side supporting frames 21, the supporting units 2 can be more stable, the whole greenhouse body is more stable and reliable, and through the telescopic cross inclined strut mechanism, a larger interval can be formed between every two adjacent supporting units 2, and the interval is generally 1.0-1.5 m. The cross inclined strut mechanism enables the greenhouse to be opened and folded more smoothly, the operation is more convenient, and the folded length can be compressed to 1/5-2/5 of the opened length. Of course, in other embodiments, the retractable connecting mechanism 4 may also adopt other existing structures, and the above-mentioned driving of the supporting unit 2 to move and the function of stable support can be achieved.

In the present embodiment, referring to fig. 1, fig. 2 and fig. 5, as a preferred design, the mobile telescopic greenhouse further comprises a walking driving mechanism 5, and the walking driving mechanism 5 is installed on the two side supporting frames 21 of the foremost supporting unit 2 and is used for driving the side supporting frames 21 to move back and forth on the bottom plate 1. The walking driving mechanism 5 comprises a box body, a driving wheel arranged at the bottom of the box body, a motor and a transmission assembly arranged in the box body, the driving wheel is installed on the bottom plate 1, the box body is fixedly connected onto the side supporting frame 21, the box body plays a role in protecting the internal motor and the transmission assembly, the motor rotates to drive the driving wheel to rotate through the transmission assembly, so that the side supporting frame 21 which is the most front end is driven to walk on the bottom plate 1, and the automatic opening and closing of the greenhouse are realized. The walking driving mechanisms 5 on the two side supporting frames 21 are preferably controlled synchronously to ensure that the supporting unit 2 keeps stable when moving forwards and backwards, the two walking driving mechanisms 5 can be controlled by a computer, and the machine is generally stopped when the difference between the two side supporting frames 21 in the front and back direction is 200mm so as to avoid damaging the supporting unit 2 by pulling. Wherein the electric wires of the motor can be laid in the bottom plate 1. In other embodiments, the travel drive mechanism 5 may also take other existing drive configurations. In addition, in some cases, when the walking driving mechanism 5 is not arranged or the walking driving mechanism 5 breaks down, the greenhouse can be opened and closed in a manual pushing mode.

In this embodiment, a control mechanism may be provided to control the movement of the travel driving mechanism 5, the control mechanism is composed of a control box and a desk controller, the control box is fixed in the box and connected with the motor, the control box receives the instruction sent by the desk controller, and then controls the motor to rotate, so as to drive the driving wheel to roll, and the desk controller may be used by the person on duty in the duty room to realize remote control. In addition, a handle remote controller can be configured, and the greenhouse can be flexibly controlled to be opened and closed within 10-30 m around the walking driving mechanism 5 according to the field radio communication environment. Preferably, a limit switch is arranged in the control mechanism, and in the opening process, the motor is controlled to act, the limit mechanism acts after the support unit 2 at the foremost end is driven to move forwards for a specified stroke, and the motor stops, so that the greenhouse just reaches the opening state.

In the present embodiment, referring to fig. 1 and 5, the front and rear end support units 2 are fixed with the gable walls 6, and the two gable walls 6 constitute walls at the front and rear ends of the greenhouse, so that the two gable walls 6 can move along with the support units 2. Of course, in some cases, the gable 6 may not be provided, but may be replaced by a plastic film.

In the present embodiment, referring to fig. 1, the mobile telescopic greenhouse further comprises a warehouse 7, the rear ends of the two bottom plates 1 extend into the warehouse 7, and the warehouse 7 can accommodate the supporting units 2. The warehouse 7 main part can adopt the steel construction, and the panel encloses and seals, and the roofing can adopt various steel sheet, and when needs utilized warehouse 7 to plant, the roofing can adopt light printing opacity material. When the greenhouse is furled, the supporting units 2 are moved backwards, the furled supporting units 2 are all accommodated in the warehouse 7, and the warehouse 7 plays a role in accommodating and protecting. And the left side and the right side of the warehouse 7 are both provided with inserting plate grooves, when the warehouse 7 needs to be closed, the inserting plates are arranged in the grooves, and the greenhouse is closed in the warehouse 7 by the inserting plates. While the warehouse 7 can be used to house other supporting equipment.

The movable telescopic greenhouse of the embodiment can be provided with corresponding supporting equipment such as a spraying, drip irrigation and fertilization system, a computer comprehensive control system, a top spraying system and the like when being used for planting vegetables. The facilities are arranged in the greenhouse and are arranged in a vertical rod or a buried mode, and the facilities are not connected with the movable telescopic greenhouse main body in a hanging mode, so that the greenhouse main body is not influenced when being moved in a telescopic mode.

Compared with the existing traditional greenhouse, the movable telescopic greenhouse in the embodiment has the following advantages:

1. the greenhouse can be flexibly opened and closed according to actual needs, and the greenhouse is prevented from being destroyed in extreme weather of typhoon and heavy snow, so that great economic loss is avoided; under the guidance of weather forecast, the greenhouse is already folded into the warehouse 7 before typhoon and snowstorm occur, so that the design does not need to be considered according to the worst wind and snow load, and the design and construction cost of the greenhouse can be greatly reduced; when the greenhouse is used as a vegetable greenhouse, the flexibility of planting can be improved, two different planting modes of a greenhouse or an open air can be provided for vegetable growers, and the greenhouse is switched to be used.

2. The side supporting frames 21 and the shed roof arched beams 22 can adopt standard components, have universality, can be manufactured in factories and installed on site, only need to construct the bottom plate 1, install and paste a covering plastic film on site, are convenient to construct and have short construction period.

3. The structure performance is good, the structure is stable and firm, the earthquake and the impact of wind and snow can be resisted, and the foundation differential settlement can be adapted.

4. The application span is not limited, and the movable telescopic greenhouse can be used regardless of the width or the width of the greenhouse; besides being used as a vegetable greenhouse, the greenhouse can also be used as a greenhouse with other functions.

5. Can be folded to a length of about 2/5 times the length of the folded greenhouse, so that the required length of the warehouse 7 is small, the arrangement is convenient, the investment is saved, and the maintenance of the greenhouse in the warehouse 7 is convenient.

In conclusion, the present invention effectively overcomes various disadvantages of the prior art and has high industrial utilization value.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. The utility model provides a remove telescopic big-arch shelter, includes the canopy body and cover overburden (3) on the canopy body, its characterized in that: the shed is characterized by further comprising two bottom plates (1) which are oppositely arranged left and right and are parallel to each other, the length direction of the bottom plates (1) is along the front-back direction, the shed body comprises a plurality of supporting units (2) which are arranged on the bottom plates (1) in the front-back direction, each supporting unit (2) comprises two side supporting frames (21) and a shed roof arched beam (22), the two side supporting frames (21) are respectively arranged on the two bottom plates (1), the side supporting frames (21) can move on the bottom plates (1) back and forth, and two ends of the shed roof arched beam (22) are respectively arranged on the two side supporting frames (21); the covering layer (3) is connected with both the side supporting frames (21) and the shed roof arched beams (22) of the supporting units (2) and stretches along with the movement of the supporting units (2).

2. The mobile telescopic greenhouse of claim 1, wherein: the covering layer (3) is a plastic film, sun-shading cloth or waterproof cloth.

3. The mobile telescopic greenhouse of claim 1, wherein: the side support frame (21) comprises two side columns (211) symmetrically arranged left and right and a top beam (212) fixed to the tops of the two side columns (211), and the beam end of the shed roof arched beam (22) is installed on the top beam (212).

4. The mobile telescopic greenhouse of claim 1 or 3, wherein: lifting lugs (23) are arranged at the upper ends of the side supporting frames (21), bolt holes (22a) are formed in the two ends of the shed roof arched beam (22), and the shed roof arched beam (22) is connected well through the bolt holes (22a) and the lifting lugs (23) through connecting bolts (24).

5. The mobile telescopic greenhouse of claim 1, wherein: the side support frame (21) is provided with reverse hooks (215) on the left side and the right side of the bottom, the left side and the right side of the bottom plate (1) are provided with a cantilever plate (1a), and the reverse hooks (215) are clamped on the cantilever plate (1a) and can slide back and forth along the cantilever plate (1 a).

6. The mobile telescopic greenhouse of claim 1, wherein: the canopy body still includes scalable coupling mechanism (4), scalable coupling mechanism (4) set up between two adjacent collateral branch strut frames (21) on same bottom plate (1), and both sides are connected with two collateral branch strut frames (21) respectively around scalable coupling mechanism (4), scalable coupling mechanism (4) can stretch out and draw back in the front and back direction.

7. The mobile telescopic greenhouse of claim 6, wherein: the telescopic connecting mechanism (4) is a cross inclined strut mechanism and comprises two cross inclined struts (41) with the middle parts hinged, one end of each cross inclined strut (41) is hinged on one side support frame (21), and the other end of each cross inclined strut is arranged on the other side support frame (21) in a vertically sliding mode.

8. The mobile telescopic greenhouse of claim 7, wherein: the upper end of the side supporting frame (21) is provided with a sliding groove (213), the upper end of the cross inclined support (41) is provided with a sliding shaft (44), and the sliding shaft (44) is installed in the sliding groove (213) and can move up and down along the sliding groove (213).

9. The mobile telescopic greenhouse of claim 1 or 6, wherein: the walking mechanism is characterized by further comprising a walking driving mechanism (5), wherein the walking driving mechanism (5) is installed on the two side supporting frames (21) of the foremost supporting unit (2) and used for driving the side supporting frames (21) to move back and forth on the bottom plate (1).

10. The mobile telescopic greenhouse of claim 1, wherein: still include warehouse (7), the one end of two bottom plates (1) extends to in warehouse (7), support element (2) can be held by warehouse (7) after moving to warehouse (7) and drawing close.