CN209914587U

CN209914587U - Large-span three-chord column-free greenhouse skeleton

Info

Publication number: CN209914587U
Application number: CN201920318224.5U
Authority: CN
Inventors: 陈殿奎; 李凤忱; 孙洪亮; 刘朋程; 刘琳立; 吕欢欢
Original assignee: Jilin Yidao Technology Co Ltd
Current assignee: Jilin Yidao Technology Co Ltd
Priority date: 2019-03-13
Filing date: 2019-03-13
Publication date: 2020-01-10
Anticipated expiration: 2029-03-13

Abstract

The utility model discloses a three-chord column-free greenhouse skeleton of large-span, include as the three-chord truss of greenhouse bow member and the cold-proof structure of using as the greenhouse heat preservation usefulness, three-chord truss is formed by three chord members and a plurality of web member welding, the chord member adopts the two-sided twice welding of being connected more firmly with the welding of web member, and its section is isosceles triangle. The utility model has simple structural design, realizes the assembly of the large-span greenhouse, has strong rigidity and strong stability, and can effectively prevent the greenhouse from collapsing; the assembly and disassembly of the greenhouse are simple and convenient, and labor consumption during manpower is reduced.

Description

Large-span three-chord column-free greenhouse skeleton

Technical Field

The utility model relates to the field of agricultural technology, concretely relates to three-chord column-free greenhouse skeleton of large-span.

Background

The greenhouse is a building arrangement originated from the cultivation of vegetable and flower protection places. The cultivation method is widely applied to the field of plant cultivation, not only can be widely applied to cultivation of vegetables and flowers, but also can be widely applied to production processes of crops such as fruits, medicinal herbs and the like, so that the life quality of people is improved, and the planting mode of the crops is optimized.

In the prior art, the greenhouse framework is generally formed by assembling more greenhouse connecting pieces through welding or threaded connection, time and labor are consumed relatively in installation or disassembly, and the greenhouse with the larger span is often influenced by the rigidity of the structure, so that the greenhouse framework is not stable enough, is easily influenced by wind and rain to collapse, and harms the life and property safety of people.

The greenhouse which is convenient to disassemble and has high rigidity is a direction which needs to be researched.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a three-chord column-free greenhouse skeleton with large span.

The utility model discloses a realize above-mentioned purpose and the technical scheme who takes does: a large-span three-chord column-free greenhouse skeleton comprises a three-chord truss serving as a greenhouse arch frame and a heat preservation structure serving as a greenhouse heat preservation structure, wherein the three-chord truss is formed by welding three chord members and a plurality of web members, and the section of the three-chord truss is in an isosceles triangle shape.

Furthermore, the chord member and the web member are welded in a mode of two-sided welding which is firmer in connection.

Further, the warm-keeping structure comprises a cotton quilt used for heat preservation of the greenhouse, a winding and unwinding roller for winding and unwinding the cotton quilt, and a protective greenhouse arranged on the top of the greenhouse and used for preventing the cotton quilt from being corroded by rainwater, wherein the winding and unwinding roller is driven to rotate by a rotating motor.

Furthermore, a ventilation device for ventilating the greenhouse is arranged at the top of the greenhouse.

Furthermore, the ventilation device comprises a ventilation opening arranged at the top of the greenhouse, a cover plate used for covering the ventilation opening and an air cylinder driving the cover plate to open and close, a square inserting plate is arranged around the lower part of the cover plate to form a sealed structure in a shape like a Chinese character 'kou', and a rubber sealing strip is arranged outside the inserting plate; the welded volume all around the vent is with square picture peg complex draw-in groove, the draw-in groove periphery is equipped with the press mold groove.

Furthermore, the greenhouse is provided with an entrance and an exit near the side.

Furthermore, a storage groove with a trapezoidal section is arranged at the bottom right below the three-string truss, and nutrient soil is contained in the storage groove.

Furthermore, each two adjacent three-chord type trusses are provided with a plurality of groups of transverse pull rods.

The utility model has the advantages that:

1. the utility model has simple structure design and strong practicability;

2. the truss adopts a novel three-chord welding machine mode instead of the traditional two-chord welding, so that the rigidity of the truss is enhanced; meanwhile, the weight of the greenhouse frame is increased, and the wind and snow resistance of the greenhouse frame is improved;

3. the ventilation device is simple in design, does not directly contact with the greenhouse film, and does not damage the surrounding greenhouse film;

4. and in rainy and snowy weather, the arrangement of the protective shed prevents the cotton quilt from being eroded by wind and snow.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged schematic view of the structure A of FIG. 1 according to the present invention;

FIG. 3 is a schematic structural view of the ventilation device of the present invention;

fig. 4 is a cross-sectional view of the middle vent of the present invention in a top view;

fig. 5 is a cross-sectional view of the middle three-string truss of the present invention.

The figures in the drawings represent:

1. the device comprises a three-string truss 101, a chord 102, a web member 2, an entrance 3, an article holding groove 4, a transverse pull rod 5, a PE film 6, a quilt 7, a receiving and releasing roller 8, a protective shed 9, a soft rope 10, a rotating motor 11, a vent 12, a cover plate 13, a cylinder 14, a piston rod 15, an inserting plate 16, a rubber sealing strip 17, a clamping groove 18 and a film pressing groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be understood that the terms "front", "back", "vertical", "left", "right", "up", "down", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element being referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

As shown in figure 1, the large-span three-chord column-free greenhouse skeleton comprises a three-chord truss 1 used as a greenhouse arch frame and a heat preservation structure used for greenhouse heat preservation, the three-chord truss 1 is formed by welding three chord members 101 and a plurality of web members 102, wherein the chord members 101 are round tubes, the web members 102 are round bars, the distance between two adjacent groups of web members 102 can be set according to actual needs, in order to enhance the welding firmness, a double-sided and double-time welding mode is adopted, as shown in fig. 5, the cross section formed by welding is an isosceles triangle, and the triangular stabilizing principle is applied to the connection of the three-chord truss 1, so that the three-chord truss 1 has stronger stability and rigidity, in the actual assembly of the greenhouse, the transverse pull rods 4 are arranged between the upper end chords 101 between two adjacent three-chord type trusses 1, so that the stability of the greenhouse skeleton is further enhanced, and meanwhile, the PE film 5 of the greenhouse is further supported.

As shown in fig. 1 and 2, the heat insulation structure mentioned above includes a quilt 6 for greenhouse heat insulation, a receiving and releasing roller 7 for receiving and releasing the quilt 6, and a protection shed 8 arranged on the top of the greenhouse for preventing the quilt 6 from being corroded by rainwater, the receiving and releasing roller 7 is provided with two groups (the rotating roller and the rotating motor 10 arranged on the bottom of the greenhouse are not shown in the figure), the bottom and the top of one side of the greenhouse are provided with one group, the bottom and the top of the other side of the greenhouse are provided with one group, and the receiving and releasing of the quilt 6 are realized by the combined action of the rotating motor 10. The specifications of the rotating roll and the rotating electrical machine 10 used in the present invention must be the same, and the rotation speeds of the rotating electrical machines 10 must be the same. Cotton quilt 6 end fixing be soft rope 9, the other end of soft rope 9 is connected fixedly with the rotatory roller of footing department, when the cotton quilt 6 that stretches out keeps warm to the big-arch shelter and operates, the rotating electrical machines 10 that footing department set up drive and receive 7 rotations of roll of putting, the winding of pulling soft rope 9 is on the rotatory roller that footing department set up, and then the pulling cotton quilt 6 is along big-arch shelter face downwardly extending, the slope that roller 7 and rotating electrical machines 10 are mainly prevented the big-arch shelter top surface is not enough in receipts that footing department set up, the cotton quilt 6 that stretches out can be piled up in a department and influence the heat preservation effect.

In order to ensure the ventilation of the greenhouse, a ventilation device is arranged at the top of the greenhouse, as shown in fig. 3 and 4, the ventilation device comprises a ventilation opening 11 formed at the top of the greenhouse, a cover plate 12 used for covering the ventilation opening 11 and an air cylinder 13 used for driving the cover plate 12 to open and close, a square insertion plate 15 is arranged around the lower part of the cover plate 12 to form a sealed structure in a shape like a Chinese character 'kou', a rubber sealing strip 16 is arranged outside the insertion plate 15, and the rubber sealing strip 16 is in contact with the PE film 5 when the cover plate 12 covers the ventilation opening 11, so that the excellent sealing performance when the cover plate 12 covers the ventilation opening 11 is further ensured; the periphery of the ventilation opening 11 is provided with a clamping groove 17 matched with the square insertion plate 15 in a welded mode, the periphery of the clamping groove 17 is provided with film pressing grooves 18, and the film pressing grooves 18 are respectively fixed on the upper chord 101 and the two adjacent transverse pull rods 4 on the three-chord truss. When the cover plate 12 is opened to ventilate the greenhouse, the piston rod 14 of the cylinder 13 extends out, the cover plate 12 rises to lose the covering and sealing effect on the ventilation opening 11, and the greenhouse can be ventilated; when ventilation is not needed, the piston rod 14 of the air cylinder 13 is retracted until the inserting plate 15 is clamped into the clamping groove 17.

In addition, an access 2 is arranged at the position of the greenhouse close to the side; the bottom right below the three-chord truss 1 is provided with a storage tank 3 with a trapezoidal section, and nutrient soil is contained in the storage tank 3, so that the loss of nutrient soil nutrients can be avoided.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a three-chord column-free greenhouse skeleton of large-span which characterized in that: the greenhouse comprises a three-chord truss serving as a greenhouse arch frame and a heat-insulating structure serving as a greenhouse heat-insulating structure, wherein the three-chord truss is formed by welding three chord members and a plurality of web members, and the section of the three-chord truss is in an isosceles triangle shape.

2. The large-span three-chord column-free greenhouse skeleton of claim 1, wherein: the chord member and the web member are welded in a mode of two-side welding twice, wherein the two sides of the chord member and the web member are connected more firmly.

3. The large-span three-chord column-free greenhouse skeleton as claimed in claim 1 or 2, wherein: the warm-keeping structure comprises a quilt used for keeping the temperature of the greenhouse, a winding and unwinding roller for winding and unwinding the quilt, and a protective greenhouse arranged on the top of the greenhouse and used for preventing the quilt from being corroded by rainwater, wherein the winding and unwinding roller is driven to rotate by a rotating motor.

4. The large-span three-chord column-free greenhouse skeleton of claim 3, wherein: and a ventilation device for ventilating the greenhouse is arranged at the top of the greenhouse.

5. The large-span three-chord column-free greenhouse skeleton as claimed in claim 4, wherein: the ventilation device comprises a ventilation opening arranged at the top of the greenhouse, a cover plate used for covering the ventilation opening and an air cylinder driving the cover plate to open and close, a square inserting plate is arranged around the lower part of the cover plate to form a sealed square-shaped structure, and a rubber sealing strip is arranged outside the inserting plate; the welded volume all around the vent is with square picture peg complex draw-in groove, the draw-in groove periphery is equipped with the press mold groove.

6. The large-span three-chord column-free greenhouse skeleton of claim 2, wherein: and the greenhouse is provided with an entrance and an exit near the side.

7. The large-span three-chord column-free greenhouse skeleton of claim 1, wherein: and a storage groove with a trapezoidal section is arranged at the bottom right below the three-chord truss, and nutrient soil is contained in the storage groove.

8. The large-span three-chord column-free greenhouse skeleton of claim 1, wherein: and a plurality of groups of transverse pull rods are arranged between every two adjacent three-string trusses.