Booth plastic foil retractable apparatus
Technical field
The utility model relates to a kind of agricultural tools that is applied on the green house, specifically a kind of booth plastic foil retractable apparatus.
Background technology
Green house has obtained fast development since occurring, in order to satisfy the different purposes needs of people, green house no longer is confined to the single kind of traditional cob wall formula now, and day by day as diversified development.Some plastic tunnels are good at extraneous sunlight, plastic film roll need to be got up when temperature is high, realizing ventilating in the canopy and regulating the needs of temperature, then need plastic foil is put down when low to evening or temperature, are in suitable level with the temperature of keeping in the canopy.At present, the folding and unfolding of plastic foil mostly relies on manually and finishes, and not only labour intensity is large, and easily plastic foil is caused damage during artificial folding and unfolding.
The utility model content
The purpose of this utility model is to provide a kind of booth plastic foil retractable apparatus, and this device can be assisted the plastic foil of people's folding and unfolding booth, and is easy to operate, can not cause damage to plastic foil.
The technical scheme in the invention for solving the technical problem is: booth plastic foil retractable apparatus, comprise housing and guide post, the housing activity is nested with on vertical guide post, the inside of housing is provided with a gear drive, one end of gear drive connects a rocking handle, and the other end of gear drive connects the plastic foil folding and unfolding bar of level.
Described gear drive comprises the first gear, the second gear and the 3rd gear of successively external toothing, and the wheel shaft of the first gear is connected with described rocking handle, and the wheel shaft of the 3rd gear is connected with described plastic foil folding and unfolding bar.
In the described gear drive, the diameter of the first gear is greater than the diameter of the 3rd gear.
Be connected by bearing pin between the wheel shaft of described rocking handle and the first gear.
Be respectively equipped with directive wheel between the both sides of described guide post and the described housing.
One side of described housing is provided with a dead lever.
Compared with prior art, the utlity model has following beneficial effect: can realize the folding and unfolding of plastic foil by hand rocking handle, simple to operate laborsaving, alleviated people's work, plastic foil is wrapped on the plastic foil folding and unfolding bar, can be not damaged in the folding and unfolding process.
Description of drawings
Fig. 1 is the structural representation of the utility model outside;
Fig. 2 is the structural representation of the utility model gear drive.
Among the figure: 1 housing, 2 rocking handles, 3 guide posts, 4 directive wheels, 5 plastic foil folding and unfolding bars, 6 dead levers, 7 plastic foils, 8 first gears, 9 second gears, 10 the 3rd gears.
Embodiment
As shown in Figure 1 and Figure 2, booth plastic foil retractable apparatus, comprise housing 1 and guide post 3, housing 1 activity is nested with on vertical guide post 3, the inside of housing 1 is provided with a gear drive, one end of gear drive connects a rocking handle 2, and the other end of gear drive connects the plastic foil folding and unfolding bar 5 of level.Described gear drive comprises that the wheel shaft of the first gear 8, the second gear 9 and the 3rd gear 10, the first gears 8 of successively external toothing is connected with described rocking handle 2, and the wheel shaft of the 3rd gear 10 is connected with described plastic foil folding and unfolding bar 5.
In the described gear drive, the diameter of the first gear 8 is greater than the diameter of the 3rd gear 10.Like this 2 every one weeks of rotation of rocking handle, plastic foil folding and unfolding bar 5 rotated greater than a week, and is more laborsaving.
Be connected by bearing pin between the wheel shaft of described rocking handle 2 and the first gear 8.The bearing pin connected mode is so that the flexibility of rocking handle 2 is better.
Be respectively equipped with directive wheel 4 between the both sides of described guide post 3 and the described housing 1.
One side of described housing 1 is provided with a dead lever 6.
During use, according to smooth being fixedly attached on the plastic foil folding and unfolding bar 5 as shown in Figure 1, guide post 3 is fixed on the ground of canopy body one end with the bottom of plastic foil 7.In the time of plastic foil 7 need to being packed up, shake rocking handle 2, gear drive can drive plastic foil folding and unfolding bar 5 and rotate, and plastic foil 7 is rolled.Housing 1 can be driven when plastic foil 7 is rolled and move up along guide post 3, be rolled onto correct position after, rocking handle 2 rotated around bearing pin takes on the dead lever 6, also both can be strapped to one, realize the locking of position.In the time of plastic foil 7 need to being put down, rocking handle 2 is separated with dead lever 6, shake rocking handle 2 to opposite direction, plastic foil 7 can put down.
The above, principles more of the present utility model just explain through diagrams, this specification be not be the utility model to be confined to shown in described concrete structure and the scope of application, so every corresponding modify that might be utilized and equivalent all belong to the claim that the utility model is applied for.
Except the described technical characterictic of specification, all the other technical characterictics are those skilled in the art's known technology.