JPH0212863Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial field of application This invention is applicable to a vinyl greenhouse constructed by fixing a film material (hereinafter referred to as a vinyl sheet) as a covering material for a greenhouse with a spring wire or the like in a groove of a sheet retaining material. This structure uses a sheet stopper to collect condensation that has formed on the inner surface of the vinyl sheet, or rainwater that has leaked from damaged areas of the vinyl sheet, and then centrally treats the drainage at a certain point on the ground.
More specifically, the present invention relates to a structure for treating dew condensation, etc., using a sheet retaining material and a joint used to connect the sheet retaining material.

Prior Art In vinyl greenhouses, the indoor humidity is extremely high due to the high room temperature and the abundance of water provided to the crops, resulting in a large amount of condensation forming on the inner surface of the vinyl sheets. By the way, usually 0.5 per 1 m ² per night.
It has been reported that condensation may occur. This condensation gradually grows into large droplets, which eventually fall.

As a result, when condensation drips everywhere inside the vinyl greenhouse like rain, it is very unpleasant for the workers working inside the greenhouse. Not only that, but they also have to wear rain jackets to work to prevent condensation, which is inconvenient.

On the other hand, for crops grown in vinyl greenhouses, the condensation that adheres to the vinyl sheets in the form of droplets acts as a lens and causes leaf burns, or the splashing water (muddy water) caused by falling condensation causes damage to the leaves. This often polluted the soil, impairing carbon dioxide assimilation, and causing root rot and disease.

In particular, fruits such as tomatoes, cucumbers, and strawberries are extremely reluctant to be exposed to condensation (water droplets). Particularly in the case of fruits such as strawberries, there is a serious problem in that if even a small amount of liquid droplets are applied to the fruit, the fruit will suffer cracking, deformation, discoloration, etc., resulting in a defective product that cannot be sold as a commercial product.

However, in the past, as a measure to prevent condensation from falling in a vinyl greenhouse, a so-called non-droplet agent was sprayed onto the inner surface of the vinyl sheet, and when the condensation formed into slightly larger droplets, it immediately moved along the inner surface of the sheet due to its gravity. The only thing that has been done is to let the dew slide downwards, thereby alleviating the irregular fall of condensation and the resulting damage to crops.

Problems to be solved by the invention (2) Conventionally, applying a dropless agent to the inner surface of a vinyl sheet has been quite effective in treating dew condensation. However, the reality is that the amount of condensation generated far outweighs the effectiveness of the non-droplet agent, and it must be said that it is not very effective in preventing dripping of condensation.

() Therefore, it is possible to consider using a rail-shaped condensation catcher to catch the condensation and drain it away in the longitudinal direction.

However, it is difficult to set a proper gradient of water flow in a certain direction on the condensation catcher in a vinyl greenhouse that is constructed rather roughly as a temporary structure. Moreover, the length of a vinyl greenhouse in the ridge direction is usually 20m.
Since the length is about 30m, and the longest one is about 50m, there was a problem that the large amount of condensation water that was caught by the condensation catcher could not be completely removed and overflowed and spilled, making the condensation treatment ineffective.

Another problem was that the flow of condensation water was poor and the distance it flowed was long, so the condensation water remained on the condensation catcher for a long time, causing rusting and corrosion of the iron condensation catcher to progress quickly. .

() Furthermore, when it rains heavily or when there is strong wind and rain, rainwater may leak from the damaged parts of the vinyl sheet that is held down by spring wires etc. to the sheet retaining material and drip into the vinyl greenhouse. The problem was that this was often the case.

In any case, conventional measures to prevent condensation from falling in vinyl greenhouses have been completely inadequate, causing serious damage to crops and having a large negative impact on workers.

Means for Solving the Problems As a means for solving the problems of the above-mentioned prior art, the dew condensation treatment structure for a vinyl greenhouse according to this invention is shown in embodiments in FIGS. 1 to 7 of the drawings. As mentioned above, the sheet retaining materials that make up the vinyl greenhouse are made of unit-length sheets that are connected in series with insert-type cutouts. Furthermore, the joint is provided with a water collection port and a drainage nozzle connected to the water collection port, and a hose is attached to the drainage nozzle to guide dew condensation and the like to the ground.

Function: The sheet retaining material 4, which is usually manufactured to a convenient predetermined unit length of about 3 m to 6 m, is attached to the joint 6.
Connect them in series and attach them tightly to frame 2 of the vinyl greenhouse. Therefore, the edges of each sheet stopper 4 do not vary, and the stability and finish quality when the vinyl sheet 3 is fastened is very good.

Moreover, the sheet stop groove 4a or condensation receiving part 4b of each sheet stopper 4 connected by the joint 6 is connected in series with the water collection port 6d of the joint 6, so that the condensed water caught by the condensation receiving part 4b or the sheet Rainwater and condensed water leaking into the stopper groove 4a flow in the longitudinal direction of the sheet stopper 4, flow into the water collection port 6d of the joint 6, and are smoothly discharged to the ground through the drainage nozzle 6e and hose 7.

In particular, since the sheet retaining material 4 has a unit length of approximately 3 m to 6 m and is connected by the joint 6, rainwater or condensation water received in the sheet retaining groove 4a or condensation receiving portion 4b is absorbed by the sheet retaining material 4. When water flows for a length of at most 3 m in the longitudinal direction, it always flows into the water collection port 6d of the joint 6, so drainage is carried out very smoothly and efficiently, regardless of the quality of the flow gradient set on the sheet stopper 4. It can be done.

Therefore, no matter how much dew condensation occurs, the above-mentioned sheet stopper material 4 and joint 6 cannot be placed inside the vinyl greenhouse.
By arranging them properly, the amount of water mentioned above can be properly removed and damage to crops and workers caused by falling condensation can be prevented.

Further, since condensed water and the like do not remain in the sheet retaining material 4 for a long time, damage caused by rusting and corrosion of the sheet retaining material 4 can be reduced.

Embodiment Next, the embodiment shown in FIGS. 1 to 3 will be described.

First, FIG. 1 shows an embodiment in which the dew condensation treatment structure of this invention is applied to a vinyl greenhouse.

That is, in the frame 2 of the vinyl greenhouse assembled from aggregates such as the pipes 1, etc., there is a sheet stopper 4 for fixing the vinyl sheet 3, which is the covering material of the vinyl greenhouse, at the shoulder part that changes from the roof part to the side wall part, for example. ,
It is attached and fixed to the pipe 1 using a connector or the like which is not shown explicitly.

Incidentally, as shown in detail in FIGS. 2 and 3, the sheet retainer 4 of this embodiment is a sheet retainer having a substantially groove-shaped cross section for retaining the vinyl sheet 3 by a continuous wave-shaped spring wire 5. In addition to the groove 4a, a condensation receiving portion 4b is formed in parallel along one side wall of the sheet retaining groove 4a, and a connector for attaching and fixing the sheet retaining material 4 to the pipe 11 is provided between the two. A condensation abutment surface 4g is formed to catch the condensation that has slid down the inner surface of the vinyl sheet 3.

This sheet stopper 4 is used by being attached to the pipe 1 in such a manner that the condensation receiving portion 4b faces diagonally upward with respect to the slope of the roof of the vinyl greenhouse (FIG. 3).

In addition, the sheet retaining material 4 is manufactured in a unit length of about 3 m to 6 m, which is convenient for use, and is connected in series by a plug-in joint 6, and attached to the frame 2 of the vinyl greenhouse. ing.

The coupling 6 is made, for example, as an injection molded part of plastic. As shown in detail in FIGS. 2 and 3, it has a shape that exactly follows the cross-sectional outer shape of the sheet retaining material 4 (FIG. 3), and has a difference that holds the sheet retaining groove 4a from the outside. An insertion groove 6a and an insertion groove 6b each having a shape that holds the condensation receiving portion 4b from the outside are formed. A protrusion c is formed between these two insertion grooves 6a and 6b to fit into the gap 4c of the sheet stopper 4. In addition, a water collection port 6d is provided in the center of the joint 6 to cross the two insertion grooves 6a and 6b, and a drainage nozzle 6e is provided at the bottom of the water collection port 6d to protrude downward. A hose 7 is attached to the drain nozzle 6e to guide condensation to the ground.

6e in FIG. 2 is an abutment that defines the insertion amount of the sheet stopper 4, and this joint 6 is connected to the insertion groove 6.
The insertion length of a and 6b is approximately 60mm.

As mentioned above, the droplet-shaped condensation that has occurred and adhered to the inner surface of the vinyl sheet 3 and slid down the vinyl sheet 3 first comes into contact with the condensation abutment surface 4g of the sheet stopper 4, and is then deposited on this surface. Along the way, the condensation receiving part 4b is reached. Thus, the condensation receiving part 4b
When the condensed water 8 (Fig. 3) collected in The water flows into the water collection port 6d, and is guided to a specific location on the ground through the drain nozzle 6e and the hose 7.

On the other hand, condensed water that has leaked into the sheet retaining groove 4a due to capillary action, or rainwater that has also leaked into the sheet retaining groove 4a from a place where the vinyl sheet 3 is torn by the spring wire 5, etc., is also absorbed by the sheet retaining material. The water flows in the longitudinal direction of 4 and reaches the water collection port 6d of the joint 6.
and is also properly guided to the ground through the hose 7.

Therefore, by arranging the sheet stopper 4 having the condensation receiving portion 4b and the joint 6 in an appropriate manner on the inner surface of the vinyl sheet 3 in a vinyl greenhouse, dew condensation that adheres to the inner surface of the vinyl sheet 3, Alternatively, rainwater or the like that has leaked into the sheet retaining groove 4a can be reliably and efficiently removed to a certain location on the ground. Therefore, it is possible to almost eliminate damage to crops or discomfort to workers caused by inadvertent dripping such as dew condensation.

Other Embodiments () The cross-sectional shape of the sheet retaining groove 4a is not limited to the above-mentioned dovetail groove shape. For example, channel steel with a lip (C-shaped steel), which is known as a sheet retaining material.
Or something with a circular bulge in the middle to use a coiled sheet fastening wire.
It may also be in other forms. In short, this can be easily implemented by changing the shape of the insertion portion of the joint 6 to a shape that allows it to be held from the outside.

() Although the joint 6 of the above embodiment is provided with the water collection port 6d in the center thereof, the present invention is not limited to this. Since there is no need to connect the sheet retaining materials 4 to each other in the gable part where the roof surface and gable surface of a vinyl greenhouse change, the joints 6 used here are as follows:
It is convenient to simply provide a water collection port 6d and a drainage nozzle 6e at one end of the water outlet in order to meet the requirements for dew condensation treatment.

() Although the joint 6 shown in FIG. 2 is configured such that the edge of the water collection port 6d and the edge of the inserted sheet stopper 4 substantially match, this is not the case.

The water collection port 6d may have a wide shape that is deeply hollowed out below the inserted sheet stopper 4. Alternatively, the water collection port 6d may have an inclined structure in which it descends in the longitudinal direction of the sheet stopper 4 toward the position of the drainage nozzle 6e.

() The joint 6 is not limited to the plug-in type. It may be of a type that is tied with a band or the like, or of a type that is tightened with a wedge or the like.

() In the above embodiment, the two sheet stoppers 4, 4 are connected at substantially the same level, but this is not the case. That is, a joint 6 in which two sheet stoppers 4, 4 are connected in a stepped manner with different heights can also be implemented.

Second Embodiment FIG. 4 shows a structure for dealing with condensation, etc., in which a sheet stopper ₄₁ having no condensation receiving portion is butted and connected at the insertion groove 6d of the insertion type joint 6.

Other Embodiments FIG. 5 shows the sheet retaining groove 4a and the condensation receiving part 4.
b, but does not have the spacing portion 4c in the first embodiment (FIG. 3).
₂ and a plug-in joint 6 ₂ that connects the two.

Fig. 6, sheet retaining groove 4a and condensation receiving part 4b
In addition, there is a hanging wall 4 on the opposite side of the sheet retaining groove 4a.
This figure shows a dew condensation treatment structure consisting of a sheet stopper 4 ₃ having a diameter d and a plug-in joint 6 ₃ connected to the sheet stopper 4 3 .

FIG. 7 shows both side walls 4e of the sheet retaining groove 4a,
4e formed into a symmetrical box shape, and a plug-in joint 6 ₄ that connects the sheet retaining material 4 ₄
The figure shows a dew condensation treatment structure consisting of the following.

FIG. 8 shows a valley gutter-shaped sheet retaining material 4 whose cross section as a whole has a valley gutter shape that substantially matches the valley of a multi-building vinyl greenhouse, and has sheet retaining grooves 4a, 4a in the upper portions of both side walls. ₅ and a plug-in joint 6 ₅ connected to the dew condensation treatment structure.

Effects of the present invention As described above in detail together with the embodiments, the structure for treating dew condensation, etc. in a vinyl greenhouse according to this invention consists of a sheet stopper 4, a joint 6 connecting this, and other parts. Since it does not require any parts and does not increase the number of assembly steps, it can be easily implemented using conventional technology.

At the same time, since dew condensation, etc. can be properly and efficiently removed to a specific location on the ground at the position of each joint 6, damage to crops and discomfort caused to workers due to careless falling of condensation in vinyl greenhouses can be greatly improved. Can be done. Therefore, the yield, quality, etc. of crops can be greatly improved.

On the other hand, since the drainage effect is good and there is almost no chance that a large amount of condensed water will remain on the sheet retaining material 4 for a long time, damage caused by rusting and corrosion of the sheet retaining material 4 can be greatly reduced, and the service life of the vinyl greenhouse can be extended. It can be greatly improved.

[Brief explanation of the drawing]

Figure 1 is a perspective view of a vinyl greenhouse to which the dew condensation treatment structure of this invention is applied, Figure 2 is an exploded perspective view of the main parts of the condensation treatment structure, Figure 3 is a cross-sectional view of the same, and Figure 4.
The figure is an exploded perspective view of the second embodiment, and FIGS. 5 to 8 are cross-sectional views of other embodiments.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) The sheet retaining materials constituting the vinyl greenhouse are connected by a joint, and the joint is provided with a water collection port and a drainage nozzle connected to it, and the drainage nozzle is free from condensation. Condensation treatment structure for vinyl greenhouses, characterized by the installation of a hose that guides the water to the ground. (2) The sheet retaining material described in Claim 1 of the Utility Model Registration Claim has a sheet retaining groove and a condensation receiving part that press and secure a vinyl sheet etc. with a spring wire, etc. has an insertion part shaped to hold the sheet stopper groove portion of the sheet stopper material from the outside, and an insertion part shaped to hold the condensation receiving part from the outside,
A vinyl greenhouse with a dew condensation treatment structure characterized by both insertion parts being connected to water collection ports.