JPH01262736A - Heater attachment device for home hydroponic cultivation equipment - Google Patents

Abstract

PURPOSE:To prevent the dry heating and damage of a heater, the melting of a hydroponic solution tank, etc., by partitioning a bottom of a hydroponic solution tank with a partition wall higher than the hydroponic solution suction port of a pump to form a hydroponic solution retaining chamber and placing a submerged heater in the hydroponic solution retaining chamber. CONSTITUTION:The bottom surface in a hydroponic solution tank 1 is composed of a hydroponic solution suction chamber B having a hydroponic solution suction port 7a of a pump 7 and a hydroponic solution retaining chamber A partitioned with a partition wall 1a higher than the level of the hydroponic solution suction port 7a. The hydroponic solution is heated with a submerged heater 15 placed in the hydroponic solution retaining chamber A. The hydroponic solution retaining chamber A keeps the hydroponic solution even if the hydroponic solution in the hydroponic solution tank is decreased to leave little hydroponic solution to be sucked with the pump.

Description

[Detailed Description of the Invention] Industrial Application Field This invention relates to a hydroponic cultivation device, and in detail,
The present invention relates to a mini hydroponic cultivation device for enjoying the cultivation of vegetables and fruits on a home balcony or indoors, and more specifically relates to the installation of a heater to warm the cultivation nutrient solution.

Conventional technology and its problems Conventionally, mini home-use hydroponic cultivation devices have been known that are equipped with a submersible heater in the nutrient solution tank to warm the cultivation nutrient solution during cultivation in winter. The conventional type was simply installed in the same place as the suction part of the pump in the nutrient tank. Problems to be solved by the invention In the conventional type, the cultivation nutrient solution in the nutrient tank was is decreasing,
When the nutrient solution is pumped into the cultivation tank, and the nutrient solution runs out to the pump's suction port, the heater is exposed above the liquid level and a dry firing phenomenon occurs, causing damage to the heater and damage to the resin nutrient tank. It had the disadvantage that unexpected situations such as melting could occur.

Means for Solving the Problems In order to solve the above-mentioned disadvantages, the present invention provides a cultivation tank 2b on the top of a synthetic resin nutrient solution tank 1 containing a nutrient solution for hydroponic cultivation, and a pump. 7, the cultivation nutrient solution in the nutrient solution tank 1 is sent to the cultivation tank 2b, and the nutrient solution overflowing from the cultivation tank 2 is returned to the nutrient solution tank 1 again. Hold the root side and place the root part in cultivation tank 2.
Soak it in the nutrient solution right! In the small hydroponic cultivation apparatus for home use, the bottom part of the nutrient solution tank 1 is higher than the nutrient solution inlet part MB where the nutrient solution inlet 7a of the pump 7 is located and the nutrient solution inlet 7a. This heater mounting device for a domestic hydroponic cultivation device is characterized in that the nutrient solution residual room A is divided into nutrient solution residual rooms A separated by a partition 1a, and a submersible heater 15 for warming the nutrient solution is provided in the nutrient solution residual room.

Functions and Effects of the Invention According to this invention, even if the cultivation nutrient solution in the nutrient solution tank decreases and there is almost no nutrient solution to be sucked up by the pump, the nutrient solution remains in the nutrient solution residual room where the heater is installed. Therefore, it is possible to prevent the heater from burning out or becoming abnormally high temperature, causing damage to the heater or melting of the nutrient solution tank.

Example An embodiment of the present invention will be described in detail based on the drawings.

Reference numeral 1 denotes a nutrient solution tank, which is a rectangular container made of synthetic resin that can store a cultivation nutrient solution. A nutrient solution residual chamber A is provided approximately in the center of the bottom of this container, surrounded by a partition 1a protruding from the bottom that accommodates a submersible heater, which will be described later. The liquid suction port mB is divided by the partition 1a.

Reference numeral 2 denotes a cultivation frame in which a nutrient solution storage tank 2a and a cultivation tank 2b are integrally formed.The upper part of the nutrient solution tank 1 is covered with a periphery, and hook projections 3 and holes 4 are formed here and there in localized areas. It is engaged and stopped. The nutrient solution M2a is located at one end in the longitudinal direction of the cultivation frame 2, and is arranged around the support base of the pump (-□) and the hole (b) into which the pump's suction pipe can be inserted. A nutrient solution overflow weir 2c is provided on the side of the tank 2b.The cultivation tank 2b has a flat floor (c) locally provided with protrusions 5 for supporting a planting frame, which will be described later. A weir 2d lower than the overflow weir 2c is provided on the opposite side, and a nutrient solution inlet 6 is formed on the opposite side of this weir 2d.

7 is a pump, and the motor part of this pump is mounted on the support base (
A), the suction pipe side is suspended in the nutrient tank 1, the suction port 7a is disposed near the bottom of the nutrient solution suction chamber B, and the discharge port 7b is suspended in the nutrient solution tank 1. It is arranged toward the upper part in the liquid storage tank 2a.

Reference numeral 8 denotes a cover, which is made of a resin material and covers the nutrient solution reservoir 4!2a of the cultivation frame 2 and the upper side of the pump 7 all at once.

The cover 8 has a portion corresponding to the nutrient solution outlet 7b of the pump 7 formed into a dome shape 8a that bulges upward to face the outlet 7b of the pump 7.

Reference numeral 9 denotes a planting frame, which is placed above the cultivation tank 2 and is made of foamed resin or the like, in which a hole 11 is drilled to hold the root portion of the plant P wrapped in a plant root-side holder 10 made of urethane material or the like. It is a panel that doubles as a cover. Furthermore, 9a
is an opening for replenishing the nutrient solution, which is located above the nutrient solution inlet 6, and a mob is provided in this opening 9a.

Reference numeral 12 denotes an intermediate nutrient solution receiver, which is located between the nutrient solution storage tank 2a of the cultivation tank 2 and its upper cover 8, and receives the water pumped by the pump 7 for lifting the nutrient solution in the nutrient solution tank 1 to a predetermined level. Hole 1
This is a vessel for temporarily receiving the nutrient solution supplied from 3 to the lower nutrient solution storage tank 2a. In addition, 14 is a water level gauge.

Reference numeral 15 denotes a submersible heater, which has a rod-like shape with its base and tip, excluding the intermediate heating portion L5a, covered waterproof with a rubber material 15b, and a heater support plate 16 which also serves as a rib provided in the nutrient solution residual portion iA. , 16 for insertion into recesses 16a, 16.
A is formed, and a part of the cover made of the rubber material 15b is fitted to this part, and is supported within the part giA apart from the bottom surface of the nutrient solution residual chamber A. Incidentally, numeral 17 indicates a suction cup for fixing the heater cord to the bottom surface of the nutrient solution tank 1 so that it does not float up.

Next, to explain the upper function in detail, as shown in the drawing, the root side of the plant P to be cultivated is wrapped in the hole 11 of the planting frame 9 with a holder 10 made of foamed urethane or the like. Push it in and hold it, so that the roots of the plant are in cultivation tank 2.
Set it to the state where it is thrown into b. When the nutrient solution mixed with fertilizer is put into the nutrient solution tank 1 and the pump 7 is operated, the cultivation nutrient solution in the nutrient solution tank 1 is pumped up by the pump 7 as shown by the arrow in FIG. The water is poured onto the top and water is sprayed from the discharge port 5.

The fountain is received by the inner surface of the dome 8a of the cover 8 and flows down. This flowing down nutrient solution is once received by the intermediate nutrient solution receiver 12, flows into the nutrient solution storage tank 2a of the cultivation frame 2 through the hole 13 at the bottom, is stored here, and then flows into the cultivation tank 2b. Thereafter, the nutrient solution flows over the weir 2d and flows into the nutrient solution tank 1 from the nutrient solution inlet 7. In this way, the nutrient solution is sequentially circulated into the cultivation tank 2b. Therefore, the roots of the plant A grow by absorbing the nutrient solution flowing in the cultivation tank 2b.

However, in the winter, it is important to warm the nutrient solution to promote root growth. It is preferable to fit a part of the cover made of the rubber material 15b of the heater 15 into the concave portions 16a, 16a of 16.16, to separate it from the bottom surface of the nutrient solution remaining portion MA, and to energize it while being supported within the portion MA. At this time, the electric cord is fixed to the bottom surface of the nutrient solution tank 1 with a suction cup 17 so that it does not float to the bottom surface of the nutrient solution tank 1.

During such cultivation in winter, the nutrient solution gradually decreases and the nutrient solution in the nutrient solution tank 1 becomes low, and if you do not notice this and the nutrient solution ends up being unable to be sucked up by the pump 7,
In conventional devices, unforeseen situations may occur, such as the submersible heater 7 being exposed above the nutrient solution, causing the heater 7 to dry out and being damaged, or the nutrient solution tank 1 to melt due to abnormal heating of the heater 7. According to this invention, even when the amount of nutrient solution in the nutrient solution tank 1 decreases, the remaining portion of the nutrient solution that is not sucked by the pump 7,
Since heater 15 is provided in fiA, heater 1
5 is not exposed from the nutrient solution, which prevents unexpected situations that occur in conventional devices.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, in which Fig. 1 is a side sectional view, Fig. 2 is a partially cutaway plan view, Fig. 3 is a front sectional view, and Fig. 4 is a side view in a cultivated state. 5 is a side sectional view of the main part, FIG. 6 is a plan view of the main part, and FIG. 7 is a slope view of the main part. In the figure, symbol 1 is the nutrient tank, 1a is the partition, 2 is the cultivation frame, 2a is the nutrient solution reservoir, 2b is the cultivation tank, 7 is the pump, 7a is the suction port, 7b is the discharge port, and 1.15 is the submersible heater. , A indicates the nutrient solution residual room, and B indicates the nutrient solution inlet room.

Claims (1)

[Claims] A cultivation tank 2b is provided on the top of a synthetic resin nutrient tank 1 that stores a nutrient solution for hydroponic cultivation, and a pump 7 sends the cultivation nutrient solution in the nutrient tank 1 to the cultivation tank 2b. The nutrient solution overflowing from the cultivation tank 2 is returned to the nutrient solution tank 1 again, and the root side of the cultivated plant is held in the upper part of the cultivation tank 2b, so that the root part of the cultivation tank 2 is immersed in the nutrient solution. In a small hydroponic cultivation device for home use, the bottom of the nutrient solution tank 1 is
It is divided into a nutrient solution suction chamber B where the nutrient solution suction port 7a of the pump 7 is located and a nutrient solution residual chamber A separated by a partition 1a which is higher than the nutrient solution suction port 7a. A heater mounting device for a home hydroponic cultivation device, characterized in that a submersible heater 15 is provided to heat the water.