JPH0449895Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The invention is a container for storing liquid such as a nutrient solution for hydroponic cultivation. a cylindrical connection part and a lid body having a liquid injection port having a smaller diameter than the opening part,
and an annular convex portion and a concave portion formed on a fitting surface between the opening of the container body and the cylindrical connecting portion of the lid, which elastically fit into each other from the axial direction of the opening. Regarding storage containers.

[Conventional technology]

As shown in FIG. 11, this type of liquid storage container has a cylindrical connecting part 2B and a liquid inlet part 2A of the lid 2, as well as a connecting part 2C that connects the lower ends of both 2B and 2A. It is known that they have the same wall thickness and are integrally molded from synthetic resin.

In the case of this conventional container, in order to receive and support the radially inward reaction force when the container body 1 and the lid 2 are fitted together only by the connecting portion 2C, the connecting portion 2C is connected to the container body 1. The opening 1A of the container body 1 is easily deformed in a curved manner in the axial direction, and as a result, the adhesion of the fitting portion between the opening 1A of the container body 1 and the cylindrical connecting portion 2B of the lid body 2, especially the uneven portions 3a and 3b. There was a problem in that the adhesion between the container body 1 and the lid body 2 became weak, and when the entire container was tilted or reversed, the stored liquid leaked from the fitting part between the container body 1 and the lid 2.

In addition, as a method for improving such problems, as shown by the imaginary line in FIG.
It is conceivable to integrally mold reinforcing ribs 4 on the connecting portion 2C so as to extend over the entire width of the cylindrical connecting portion 2B.
Although the reaction force inward in the radial direction at the time of fitting with the lid body 2 can be strongly received by the connecting portion 2C and the reinforcing ribs 4, sink marks (shrinkage) during molding of the reinforcing ribs 4 may occur. ), the four reinforcing ribs of the cylindrical connection part 2B are deformed inward in the radial direction, and as a result, the cylindrical connection part 2B is accommodated through a local gap generated due to the deformation. There is a problem of liquid leakage.

[Problem that the invention attempts to solve]

The present invention has been developed in view of the above-mentioned circumstances, and its purpose is to rationally improve the reinforcing ribs to prevent leakage of stored liquid from the fitting portion between the container body and the lid. The point is to be able to prevent this.

[Means for solving problems]

In the liquid storage container according to the present invention, the connecting portion between the cylindrical connecting portion and the liquid inlet portion of the lid body is reinforced in such a manner that at least the connecting portion of the cylindrical connecting portion does not come into contact with anything other than the base connected to the connecting portion. It is characterized by the continuous provision of ribs, and its effects and effects are as follows.

[Effect]

The reinforcing ribs connected to the connecting portion of the lid body can improve the compressive strength of the connecting portion in the radial direction. In addition, since the reinforcing ribs are formed so as not to contact at least any part other than the base of the cylindrical connection part, the local radial inside of the cylindrical connection part due to sinkage of the reinforcing ribs during molding can be avoided. deformation in the direction can be suppressed.

[Effect of idea]

Therefore, it is possible to strongly absorb the radially inward reaction force when the container body and the lid are fitted together, and to suppress local deformation of the portion corresponding to the continuous reinforcing rib of the cylindrical connection portion. In combination with this ability, the opening of the container body and the cylindrical connection part of the lid can be tightly fitted together, thereby preventing leakage of the stored liquid from the fitting part of the two. can do. Moreover, such leakage prevention is possible.
This could be accomplished by simply and inexpensively modifying the shape of the reinforcing ribs as described above.

〔Example〕

Hereinafter, embodiments of the present invention will be described based on the drawings.

Figures 1 and 2 show a nutrient solution tank T of a hydroponic culture device A, which is an example of a solution storage container, and is made of synthetic resin molded into a cylindrical shape with a bottom, the diameter of which increases slightly toward the top. It consists of a container body 1 made of aluminum, and a lid 2 made of synthetic resin and having a liquid injection port 2A smaller in diameter than the opening 1A of the container body 1.

The opening 1A of the container body 1 is formed to bulge outward in the radial direction, and is configured to be able to fit and hold the lid 2 therein.

The lid body 2 includes the liquid inlet portion 2A, a cylindrical connecting portion 2B that fits into the opening 1A of the container body 1, and a tapered tube that connects the liquid inlet portion 2A and the cylindrical connecting portion 2B. It consists of a connecting part 2C shaped like, and
The center of the liquid injection port 2A is formed to be offset to one side in the radial direction with respect to the center of the container body 1.

An annular convex portion 3a and a concave portion 3b are provided on the fitting surface between the opening portion 1A of the container body 1 and the cylindrical connecting portion 2B of the lid body 2, which elastically fit into each other from the axial direction of the opening portion 1A. At the same time, the cylindrical connection is formed across the horizontal annular portion 2C ₁ of the connecting portion 2C of the lid body 2 that is connected to the cylindrical connection portion 2B and the funnel-shaped portion 2C ₂ that is connected to the liquid injection port 2A. A plurality of reinforcing ribs 4 along the diameter direction of the lid body 2 without contacting the portion 2B, and a positioning protrusion 5 with respect to the hydroponic cultivation device A without contacting the cylindrical connection portion 2B.
are integrally molded.

A pair of the positioning protrusions 5 are arranged on the center line of the liquid inlet portion 2A in the deflection direction, and the reinforcing ribs 4
They are arranged at four locations separated by an angle slightly smaller than 45° in the circumferential direction.

Further, the positioning projection 5 is configured to be slightly higher than the reinforcing rib 4.

A synthetic resin cap 6 having a liquid injection port 6a smaller in diameter than the liquid injection port 2a of the liquid injection port 2A is screwed into the liquid injection port 2A of the lid 2, and A valve body 7 made of rubber is provided within the cap 6 and is capable of opening and closing the liquid injection port 6a.

The reinforcing ribs 4 connected to the connecting portion 2C of the lid 2 increase the compressive strength in the radial direction of the connecting portion 2C, and when the container body 1 and the lid 2 are fitted, The reaction force inward in the radial direction can be strongly received. Moreover, this reinforcing rib 4
is not in contact with the cylindrical connection part 2B, so the influence of the sink of the reinforcing rib 4 during molding does not act on the cylindrical connection part 2B or is very small, and the reinforcing rib of this cylindrical connection part 2B This makes it possible to suppress local deformation at locations corresponding to the continuous arrangement. Therefore, the opening 1A of the container main body 1 and the cylindrical connecting portion 2B of the lid 2 can be strongly fitted and brought into close contact with each other, thereby preventing leakage of the stored nutrient solution from the fitting portion of both 1 and 2. We were able to reliably prevent this.

As shown in FIGS. 3 to 6, the hydroponic cultivation device A includes a cultivation container A ₁ made of synthetic resin and formed into an approximately track shape in plan view, and a recess 8 for storing soil and a nutrient solution. A partition member _A2 made of synthetic resin is placed thereon and has a tank mounting recess 9 for mounting the tank T in an inverted position.

A large number of holes 8b are formed in the bottom plate 8a of the soil storage recess 8 of the partition member _A2 to allow the root hairs of cultivated plants to grow downward.
Legs 8c are integrally molded at multiple locations on the lower surface of a.

At the opening of the tank mounting recess 9 of the partition member _A2 , there are two types of mounting surfaces 9a, 9 with different vertical heights on which the reinforcing ribs 4 of the nutrient solution tank T are mounted.
grooves 9c and 9d into which the positioning protrusions 5 fit are formed in the circumferential center of each of the mounting surfaces 9a and 9b.

Further, on the upper surface of the bottom plate 9e of the tank mounting recess 9, when the reinforcing ribs 4 and the positioning protrusions 5 of the nutrient solution tank T are placed on the upper mounting surface 9a where the nutrient solution level is high, A high protrusion 9f that opens the valve body 7 of the cap 6 of the nutrient solution tank T;
When the reinforcing rib 4 and positioning protrusion 5 of the nutrient solution tank T are placed on the lower mounting surface 9d where the nutrient solution level is low, the low protrusion 9g that opens the valve body 7 of the cap 6 is integrated. In addition, a plurality of nutrient solution supply holes 9h are formed in the bottom plate 9e.

In addition, numeral 10 in the figure is a removable plug made of synthetic resin that closes the drain hole formed near the bottom of the cultivation container _A1 .

Next, another example will be described.

(b) In the above embodiment, the nutrient solution tank T of the hydroponic culture container A was used as an example of the solution storage container, but the solution is not limited to this, and can be used for a wide range of purposes such as drinking water and oil. can be used.

(b) In the liquid storage container shown in FIG. 7, the reinforcing rib 4 is connected from the connecting portion 2C of the lid body 2 and the cylindrical connecting portion 2B to the funnel portion 2C ₂ of the connecting portion 2C. It is connected to the lid body 2 with an outer surface shape parallel to the .

(c) In the liquid storage container shown in FIG. 8, the reinforcing rib 4 is connected to the lid 2 so as to be integrally connected to the base end portion of the cylindrical connecting portion 2B.

(d) In the liquid storage container shown in FIG. 9, the cylindrical connecting portion 2B of the lid body 2 extends downward from the outer peripheral edge of the connecting portion 2C, and the reinforcing rib 4 is connected to the cylindrical connecting portion 2C. Connecting part 2 without contacting part 2B
It is connected to the inner surface of C.

(E) The liquid storage container shown in FIG. 10 has a connecting portion 2C of the lid 2 connected to the cylindrical connecting portion 2B at an intermediate position above and below.

[Brief explanation of the drawing]

1 to 6 show an embodiment of the liquid storage container according to the present invention, FIG. 1 is an exploded perspective view of the nutrient solution tank, FIG. 2 is a sectional view of the nutrient solution tank when assembled, and FIG. Figure 4 is a plan view of the hydroponic cultivation device, Figure 4 is a sectional view of the main parts of the hydroponic cultivation device, Figure 5 is a sectional view showing the state of use when the nutrient solution level is low, and Figure 6 is the sectional view of the main parts of the hydroponic cultivation device. FIG. 3 is a cross-sectional view showing the state of use when the liquid level is raised. 7 to 10 are sectional views of main parts showing different embodiments, and FIG. 11 is a sectional view of main parts of a conventional liquid storage container. DESCRIPTION OF SYMBOLS 1... Container body, 1A... Opening, 2... Lid, 2A... Liquid injection port, 2B... Cylindrical connection part, 2
C... Connecting part, 3a... Convex part, 3b... Concave part, 4
...Reinforcement ribs.

Claims (1)

[Scope of utility model registration request] It consists of a container body 1, a lid body 2 having a cylindrical connection part 2B that fits inside the opening 1A of the container body 1, and a liquid injection port 2A having a smaller diameter than the opening 1A, and the container body 1 opening 1A and lid body 2
The opening 1A is located on the fitting surface with the cylindrical connecting portion 2B.
A liquid storage container is formed with an annular convex portion 3a and a concave portion 3b that elastically fit into each other from the axial direction, and the cylindrical connecting portion 2B and the liquid inlet portion 2A of the lid body 2 A liquid storage container in which a reinforcing rib 4 is provided in a row on a connecting portion 2C of the cylindrical connecting portion 2B in such a manner that it does not contact at least the base portion of the cylindrical connecting portion 2B that is continuous with the connecting portion 2C.