CN2261476Y

CN2261476Y - Plastic tunnel

Info

Publication number: CN2261476Y
Application number: CN 96202430
Authority: CN
Inventors: 吴进庆
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-01-10
Filing date: 1996-01-10
Publication date: 1997-09-03
Anticipated expiration: 2006-01-10

Abstract

The utility model relates to a string instrument type greenhouse. Mainly, two large arched units and two small arched units are arranged in parallel on both ends of a rectangular field along the same direction. Inlet and outlet doors are arranged in the large arched units. Transmitting lines driven simultaneously by rotary shafts are arranged on two corresponding vertical surfaces of the inner sides of the large arched units. A plurality of cables are bridged over and pressed on sliding pillows in the large arched units. Both ends of each cable are connected with sliding wheels on the small arched units. Two contiguous cables are connected by chains. One of the two cables at the furthest sides is served as a leading cable, and coverings are fixed on the cables. The utility model is mainly used in protective agricultural cultivation and has the advantages of low cost, easy fabrication, easy installation, easy maintenance and wide application range.

Description

String qin formula booth

The utility model relates to a kind of string qin formula booth, and it is mainly used in the protectiveness agricultural cultivation.

Existing booth, it is the arch spare that becomes semicircle or semicircular with steel tube bending, use several same arch spare balanced arrangement then together, between the adjacent two arch parts with some cross bars connect (booth that has encircle part below also to add pole some), bedding overburden (as shading net, film etc.) and building up above it again.Be applied as the master in the protectiveness planting agriculture of these booths with the modern times, other field also has.Use in agricultural cultivation, this equipment has played and has resisted extraneous adverse circumstances preferably, improves output, quality, the effect of additional income.But, because building, the booth of this form is difficult for, cost is quite high (builds a 300M ²Booth, expense does not wait for about 1～30,000 yuan), change overburden, maintenance is quite taken time and energy again, also be difficult at present popularize use, and obducent switching, switching degree can not light controls freely, fail to satisfy the requirement on using.

The purpose of this utility model is to provide a kind of and builds easily, the maintain and replace overburden can satisfy use easily, again and go up the light string qin formula booth that overburden opens and closes, cost is low of controlling freely.

The utility model is to realize like this, two big arch parts and two little arch spares are stood on the two ends in a rectangle place by cocurrent and parallel, little arch spare leans against the outside of big arch spare, install inlet/outlet in the big arch part, on inboard two vertical planes in opposite directions of two big arch parts, shape according to two big arch parts is installed drive line respectively, and drive line is by same rotating shaft driven in synchronism; Several hawsers are respectively on the sliding pillows of cross-pressures in two big arch parts, and the two ends of hawser are connected with movable pulley on the little arch spare, and the junction is provided with spiral and tightens device hawser is tightened, and two adjacent hawsers are with the chain connection of same length; The leading hawser of a row culture in two hawsers on limit makes it parallel back with the side in rectangle place and is connected with two drive lines, and the driving rotating shaft is fixed on overburden on the hawser with fixture, drives hawser with drive line, controls the switching of booth.

Below in conjunction with drawings and Examples the utility model is described in detail.

Fig. 1 is the full closeding state front view of the utility model.

Fig. 2 is the full-gear lateral view of the utility model.

Consult Fig. 1, shown in Figure 2, the little arch spare of semicircle (2) of the big arch spare of the semicircle of two radial track grooves (1) and two axial grooves is stood on the two ends in a rectangle place by cocurrent and parallel, the little arch spare of semicircle (2) leans against the outside of the big arch spare of semicircle (1), installing inlet/outlet (7) in the big arch spare of semicircle (1), on two vertical planes in opposite directions of the inboard of the big arch spare of two semicircles (1), install drive line (9) respectively according to the shape of the big arch spare track of semicircle, drive line (9) is by same rotating shaft (8) driven in synchronism; Several hawsers (3) disperse on the sliding pillow (4) of cross-pressure in the big arch spare rail groove of semicircle, the two ends of hawser (3) are connected with movable pulley (5) on the little arch spare of semicircle (2), the junction is provided with spiral and tightens device hawser is tightened, and two adjacent hawsers connect with the chain of same length; The leading hawser (10) of a row culture in two hawsers on limit, making it parallel back with the side in rectangle place is connected with two drive lines (9), drive rotating shaft (8), make all hawsers move to the big arch spare of two semicircles (1) the same side, at this moment leading hawser is in the top, and the initial line that rises of soft overburden (as shading net, plastic foil film etc.) is fixed on the leading hawser (10) with fixture, and continuous then root such as method are fixed, fix one and be dragged into a case forward with leading hawser and put, until all fixing.One by hawser (3) do crossbeam, lay uniformly, overburden can control the string qin formula booth that it opens and closes degree easily by rotating shaft (8).

During operation, only need to drive rotating shaft (8) and can arbitrarily control switching with external force.

The utlity model has following advantage:

1. cost is low. Owing to adopt hawser to replace a large amount of steel pipe fittings, thereby reduced the cost of raw material, manufacturing, transportation, installation etc., overall cost is reduced greatly.

2. owing to adopt hawser to replace a large amount of steel pipe fittings, and it can move in orbit, thereby makes manufacturings, installations, uses, keep in repair easily, and especially covering can automatically be raised or close, and tool has very important significance in production.

3. superior performance can be provided with multilayer coatingn, satisfies the various requirement in using to a greater extent.

4. wide application, design is used in available this design widely, as: the tent of the ceiling in large-scale amusement place, all size of travelling and some simple and easy factory buildings etc.

Claims

1. string qin formula booth, it is characterized in that two big arch parts and two little arch spares are stood on the two ends in a rectangle place by cocurrent and parallel, little arch spare leans against the outside of big arch spare, install inlet/outlet in the big arch part, on inboard two vertical planes in opposite directions of two big arch parts, shape according to two big arch parts is installed drive line respectively, and drive line is by same rotating shaft driven in synchronism; Several hawsers disperse on the sliding pillows of cross-pressures in two big arch parts, and the two ends of hawser are connected with movable pulley on the little arch spare, and the junction is provided with spiral and tightens device hawser is tightened, and two adjacent hawsers are with the chain connection of same length; The leading hawser of a row culture in two hawsers on limit makes it parallel back with the side in rectangle place and is connected with two drive lines, and the driving rotating shaft is fixed on overburden on the hawser with fixture, drives hawser with drive line, controls the switching of booth.