CN2428966Y

CN2428966Y - Device for rolling up and down straw curtains on plastic tunnels

Info

Publication number: CN2428966Y
Application number: CN00215361U
Authority: CN
Inventors: 刘召纯
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-07-03
Filing date: 2000-07-03
Publication date: 2001-05-09
Anticipated expiration: 2010-07-03

Abstract

The utility model relates to a device for rolling the straw curtains on vegetable greenhouses up and down. One end of a curtain rolling rope 1 is tied to a support 4, then the curtain rolling rope passes through the bottom face of a straw curtain 2 and goes back through the top face, and the curtain rolling rope is wound around a reel 3 on the support 4. The reel 3 is directly driven by a power device 5. The straw curtain 2 is in the state of rolling up or rolling down when a motor rotates clockwise or counterclockwise. When the weather abruptly changes to be a windy day or a rainy day or a snowy day or a hail day, the greenhouse can be quickly covered, and at the same time the vegetable growers' labor intensity is greatly reduced. The utility model is especially suitable for rolling the straw curtains of winter warm type greenhouses up and down.

Description

Vegetable canopy straw curtain rolling and spreading device

The utility model relates to a kind of vegetable canopy straw curtain rolling and spreading device, and the volume that is specially adapted to the winter warm type big shack straw screen or mat is put.

At present, the winter warm type green house of vegetables is very general in China, and the winter warm type green house of vegetables is general to adopt a plurality of straw screen or mat series connection to cover, and receives on the support that curtain rope one end ties up to wall behind the booth, from the straw screen or mat bottom surface walk around after above return, straw screen or mat can be rolled with pulling the moving curtain rope of receiving; With openhanded receipts curtain rope, the promptly reliable deadweight of straw screen or mat rolls down along booth is domatic, thereby booth is covered.This reeling-up reeling-out device structure is simpler, cost is low, easy to use, but meeting wind, rain, snow, the situation of hail weather sudden change, be difficult in time large quantities of straw screen or mat be put down, so just may damage vegetable grower's interests, simultaneously, also because the present scale of operation of vegetable grower is increasing, the situation that peasant manages a plurality of booths is very common, adds that a booth needs tens straw screen or mat again, therefore realize roller shutter with traditional this device, put curtain, labour intensity has also become distinct issues, and this just makes the vegetable grower be difficult to take out more energy booth is carried out scientific management, thereby also is difficult to guarantee the income of booth.

The purpose of this utility model is to provide a kind of improved, vegetable canopy straw curtain rolling and spreading device that automaticity is higher, and it can overcome the drawback that speed is slow, labour intensity is big that above-mentioned manual roller blind device exists, thereby realizes that effectively volume is put curtain rapidly.

For achieving the above object, solution of the present utility model is: put on the basis of curtain device at common manual volume, increase the power drive part, drive the receipts curtain rope that is wrapped on the reel and move up and down, roll and put down two kinds of duties thereby straw screen or mat is in.

As a kind of improvement project of the present utility model, be overcoat slip ring on the central shaft that straw screen or mat is rolled, slip ring is drawn by curtain-loosening rope, and the curtain-loosening rope other end is entangled on the take-up pulley after walking around the low headwall body of canopy body.

As the further improvement of the utility model scheme, be that the take-up pulley that twines curtain-loosening rope is fixed on the same axle with the reel that twines receipts curtain rope.

As the utility model improvement project further, take-up pulley is also directly driven by power set.When adopting motor as power source, the motor logical reel of just transferring makes winding receipts curtain rope thereon move up along domatic, thereby makes straw screen or mat be in roll-up state; Take-up pulley is connected in the motor counter-rotating, winding curtain-loosening rope pulling curtain volume central shaft is thereon moved down along booth is domatic, thereby make straw screen or mat be in down state.

Because the utility model adopted power input device, thus straw screen or mat roll and put down very convenient, fast, the infringement of having avoided weather anomaly to bring greatly reduces labour intensity simultaneously.

The utility model has adopted curtain-loosening rope traction roller shutter center spindle structure owing to reaching in improvement project, further improvement project further in the improvement project, thereby makes putting down rapidly of straw screen or mat obtain more reliable assurance.

Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.

Fig. 1 is the structure principle chart of first embodiment of the utility model;

Fig. 2 is the structure principle chart of second embodiment of the utility model;

Fig. 3 is the structure principle chart of the 3rd embodiment of the utility model.

Fig. 1 shows the structural principle of first embodiment of the utility model.Support 4 wherein is fixed in the top of booth back wall, reel 3 is installed on the support 4, whole reel is arranged along the back wall length direction, on whole booth back wall length direction, arrange some straw screen or mat 2 continuously, each straw screen or mat 2 below is laid and is received curtain rope 1, an end of receiving curtain rope 1 lies on the support 4, and the other end is walked around straw screen or mat 2 backs and returned and be wrapped on the reel 3 from the top, and the power set 5 that reel 3 is made up of motor, reductor, shaft coupling drive.When electric motor starting just changes, drive reel 3 rotations by reductor, shaft coupling, the receipts curtain rope 1 that is wrapped on the reel 3 moves up, and straw screen or mat 2 is rolled to the upper edge of the back wall of booth, and sunlight can shine by the transparent plastic above the booth on the vegetables; When electric motor starting reverses, drive reel 3 counter-rotatings, the receipts curtain rope 1 that is wrapped on the reel 3 unclamps gradually, and the straw screen or mat of rolling up 2 rolls downwards gradually because of the deadweight effect, thereby realizes the covering of straw screen or mat to booth.

The utility model also can be designed the vegetable canopy straw curtain rolling and spreading device of another kind of concrete structure by the structure principle chart of another embodiment, as shown in Figure 2.When straw screen or mat 2 was wherein rolled, the edge, lower end formed a central shaft 6, each overcoat one slip ring 7 of the both ends of central shaft 6, slip ring 7 each free curtain-loosening rope 8 traction, the other end of curtain-loosening rope 8 is wrapped on the take-up pulley 9, and for controlling conveniently, take-up pulley 9 also is located at the position close with motor switch on the wall of back.For guaranteeing curtain-loosening rope 8 operate as normal, should be behind traction slip ring 7 along domatic downward direction operation, vertically downward, the Wire channel in building from the booth bottom passes through again during through the booth front wall, be wrapped in then on the take-up pulley 9 on the back wall, also directive wheel should be set in curtain-loosening rope 8 corners simultaneously.When electric motor starting just changeed, power set 5 drove reel 3 drive straw screen or mat 2 and roll, and drive take-up pulleies 9 by curtain-loosening rope 8 simultaneously and rotate; When electric motor starting reversed, straw screen or mat 2 rolled down by deadweight.For guaranteeing that straw screen or mat 2 rolls down normally, the auxiliary take-up pulley 9 that rotates of available hand makes straw screen or mat 2 in time reach the position of expection.

Also can design the vegetable canopy straw curtain rolling and spreading device of another kind of concrete structure according to structure principle chart shown in Figure 3.Take-up pulley 9 wherein is fixed on the same axle with reel 3.When electric motor starting just changeed, reel 3 drove straw screen or mat 2 and scrolls up, and the central shaft 6 that while straw screen or mat 2 is rolled also drives slip ring 7 traction curtain-loosening ropes 8, and take-up pulley 9 is rotated, because take-up pulley 9 is same with reel 3, so form a closed loop moving chain; When electric motor starting reversed, same because the closed loop moving chain exists, the motion that straw screen or mat 2 puts down also was subjected to receiving the acting in conjunction of curtain rope 1 and curtain-loosening rope 8.Curtain-loosening rope 8 is connected in the straw screen or mat central shaft owing to be wrapped in straw screen or mat volume outer when receiving 1 work of curtain rope, by movement relation as can be known, the impeller diameter ratio of reel 3 and take-up pulley 9 should be 2: 1 can operate as normal, consider device and kinematic error simultaneously, one of directive wheel is designed to elastic telescopic, to satisfy the motion requirement of receiving between curtain rope 1 and the curtain-loosening rope 8.

The utility model also can be designed a kind of concrete vegetable canopy straw curtain rolling and spreading device again according to structural principle shown in Figure 2.Promptly power set 5 are wherein just changeing driving reel 3, and counter-rotating drives take-up pulley 9.This structure still can make straw screen or mat be in and roll and put down two kinds of duties, therefore also belongs to the scope of the utility model protection.

The utility model is not limited to above-mentioned form, and all dynamic devices drive, straw screen or mat is in rolls and put down two kinds of duties, all belongs to protection domain of the present utility model.In addition, the utility model is not only applicable to vegetable canopy straw curtain rolling and spreading device, for other similar booth device for rolling up and down straw curtains, as long as it has adopted power-actuated roller shutter structure, belongs to protection domain of the present utility model yet.

Claims

1, a kind of vegetable canopy straw curtain rolling and spreading device, an end of receiving curtain rope (1) ties up on the support (4), from the bottom surface of straw screen or mat (2) walk around after above return, it is characterized in that: the receipts curtain rope (1) of backspace is entangled on the reel (3) on the support (4), and reel (3) is directly driven by power set (5).

2, vegetable canopy straw curtain rolling and spreading device according to claim 1, it is characterized in that: central shaft (6) overcoat one slip ring (7) of straw screen or mat (2) turned up portion, slip ring (7) is by curtain-loosening rope (8) traction, and the other end of curtain-loosening rope (8) is entangled on the take-up pulley (9) after walking around the low headwall body of canopy body.

3, according to the described vegetable canopy straw curtain rolling and spreading device of claim (2), it is characterized in that: take-up pulley (9) is fixed on the same axle with reel (3).

4, according to the described vegetable canopy straw curtain rolling and spreading device of claim (2), it is characterized in that: take-up pulley (9) is directly driven by power set (5).