JPS5841383B2 - Equipment for preventing freezing of water pipes and checking conditions in cold regions - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION It is well known that in cold regions, water pipes and the like freeze during the cold winter season, causing great inconvenience and expense to residents.

The object of the present invention is to provide a simple and inexpensive device that can prevent water pipes from freezing in such cold regions, and can also confirm the presence or absence of freezing.

In Hokkaido and Aomori prefectures, water and sewage water supplies freeze during the cold winter months, causing great inconvenience in daily life, so drainers are installed on underground water supply pipes, and when there is a risk of freezing, water pipes are removed. Water is drained to prevent freezing, but there are many accidents where water pipes freeze due to improper operation of the water drainage device or equipment failure, etc.At present, there is no method to detect in advance whether there is water in the water pipes or whether it has frozen. Not known at all.

Therefore, the current situation is that we are forced to spend a lot of money and cause a lot of inconvenience in repairing the accident only to find out about it after the accident has occurred.

The present invention aims to prevent such freezing accidents by using an extremely inexpensive device and check the situation in the jurisdiction in advance to eliminate the great inconvenience and loss of expense that residents have suffered in the past. It is.

The gist of the present invention is that both terminals a are inserted into a water pipe.

A first circuit L0 is connected to the anode terminal a, and a second circuit L2 is connected to the cathode terminal a. and a main switch M is provided between them, and the second circuit L2 is provided with two gate circuit-connected integrated circuit ICs and a transistor Tr for amplifying the potential of the cathode terminal. connected so that the amplified output is applied to the base B of this transistor,
Further, a third circuit L3 is branched from the first circuit L1, and a transmitting indicator LD such as a light emitting diode or a buzzer and a self-contact holding relay RL are connected in series to this circuit L3 and connected to the emitter E of the transistor Tr. , the above relay RL
The self-contact l is connected in parallel with the main switch M so that when electricity is applied between the terminals a and b, the transistor Tr is activated and the transmission indicator LD is activated.
This is a situation checking device for a water pipe antifreeze plate in a cold region, characterized in that a reset switch R8W directed to the ground is provided in the circuit L2.

The present invention will be described with reference to examples.

FIG. 1 shows an outline of a longitudinal side view of a house in which the present invention is implemented, with a connection diagram to water pipes in accordance with the present invention added thereto.

In the figure, 1 is the road 2, the boundary wall 3, the site surface 4 is the floor surface, and in this house, three rise pipes 5, 5, 5 connect the kitchen 6, bathtub 7, and toilet 8. The kitchen and bathtub are each equipped with a faucet 9 at the end of the riser pipe, and the toilet bowl is equipped with a system tank 11 at the top of the riser pipe through a valve 10 to supply water to the toilet bowl.

And the water supply from the water pipe is a large diameter water pipe 1 buried in the ground.
Water is supplied from the second water supply pipe 13 to the kitchen riser pipe 5 through the first water supply pipe 15 via the water meter 14 with a stop valve, and from the second water supply pipe 16 to the bathtub riser pipe 5. Water is supplied to the riser pipe 5 of the toilet bowl through a third water supply pipe 17 branched from the water supply pipe 15, and at the same time, water is shared by a water stop valve 18 and a water drain valve 19 at the connection point with each riser pipe 5. A drain valve 20 is provided, a handle operating rod 21 extends upward from each drain valve 20, and an operating handle 22 is attached to the upper end of the bar on the floor. The water supply is opened to supply water to the kitchen 6 or bathtub 7 through an equal-sized riser pipe, or to the toilet bowl 8 by operating the system tank 11, or when there is a risk of freezing, the handle 2 is opened.
2 to operate the water drain valve 20, and then turn on the water stop valve 1.
8, open the drain valve 19 and drain each riser 5.
It is designed to release the water inside.

Needless to say, each faucet 9 or valve 10 should be opened in advance for this discharge.

The above is a routine method used in cold regions.

However, it is not always possible to predict that a standpipe freezing accident will occur.

Therefore, residents suffer great inconvenience and hardship when freezing occurs.

In this case, conventionally, as an unavoidable measure, a power supply line of 100V was applied between the water faucet 9 and the drain valve 20 to heat the frozen material to thaw it and release water, but this cost and cost was high. The inconvenience is enormous.

Therefore, in order to prevent such disadvantageous losses, many well-known households have no choice but to open the faucet 9 slightly throughout the night and continue the continuous flow of water. This is not only a loss, but also a considerable loss given the preciousness of water resources.

The present invention provides a system that can prevent and confirm freezing accidents in cold regions as described above using a simple and inexpensive device.

Embodiments of the invention are illustrated in FIGS. 2 to 6.

As shown in the figure, in the present invention, a dry battery DC of about 6 cm is used as a power source.

That is, the power supply battery does not cause any harm to human beings, and only one battery is sufficient for day and night use, making it extremely labor-saving.

Then, for this dry battery DC, as shown in the fourth figure, an insertion connection plug 23 having an anode a and a cathode S is made, and the insertion connection plug 23
are screwed 25 into the T-shaped water pipes 24, and the water pipes 24 are connected to the lower part of each riser pipe 5 by screws 26, so that when water exists in the riser pipes 5, both terminals a and b are in the water. If there is no water in the pipe, both terminals a and b
The anode terminal a is arranged so as to face the inner space of the tube, and the anode terminal a is arranged as shown in FIG.
To this, the first circuit L1 from the anode of the dry battery DC described above is connected via the lead wire a', and the main switch M is inserted into the circuit L□, and the first circuit L1 from the anode of the dry battery DC is connected via the lead wire b'. Two circuits L2 are derived, and an integrated circuit IC connected to two gate circuits for amplifying the potential of the cathode is connected to the second circuit L2 to adjust the amplified output of the IC circuit. B, and then from the first circuit to the main switch M to the third circuit L.
A light emitting diode LD and a self-contact holding relay RL are inserted in series into the circuit L3, and this is connected to the emitter E of the transistor Tr so that the collector C is grounded, and the self-contact l of the relay RL is connected to the emitter E of the transistor Tr. is connected in parallel with the main switch M, and when water is present in the riser pipe 5, current is passed between both terminals a and b, and the potential of the cathode terminal when the current is applied is amplified by the IC circuit. The voltage is applied to the base B of the transistor Tr to open the emitter E and collector C, and therefore the third circuit L is connected from the dry cell DC to the third circuit L.
3, so that the light emitting diode LD emits light in the drum, and at the same time, the contact 1 of the relay RL automatically closes the contact to ensure that the circulation circuit is self-maintained even when the main switch M is opened. Also, when there is no more water in the riser pipe, no current flows between terminals a and b, so no voltage is applied to the transistor Tr, so the operating body naturally stops and the entire circuit returns to its original state. The reset switch R8W is connected to the starting part of the second circuit L2 and grounded directly.If the main switch M is pressed incorrectly, the reset switch R8W can be pressed. The entire circuit is returned to its original state by stopping the transistor Tr.

A buzzer may be used in place of or in combination with the light emitting diode LD described above, but in this case, the presence or absence of residual water can be determined by the sound of the buzzer.

In the figure, TD is a Zener diode that adjusts and changes the voltage of 1oov to about 6cm.
This is provided to protect the IC circuit when the frozen object is thawed by applying AC 100V when it freezes.HD has a small resistance to the current flowing from the anode, so there is almost no current flow. In any case, if the current is in the opposite direction, the resistance becomes small and the current passes through it.Therefore, a protective diode is provided to protect the self-contact holding relay RL, and Vcc is the power source for operating the IC.

R2 is stronger than the resistance of water, but smaller than the resistance of the IC, and is provided to protect the IC circuit.

Fig. 3 shows a detection box 27 which houses the device shown in Fig. 2 which shows the gist of the present invention, 28 is a card holder showing the place of use, and 29 is the connection of IJ-wires a' and b'. It is a terminal.

FIG. 5 is a wiring diagram of the present invention when water is supplied to three places, a kitchen, a bathtub, and a toilet as shown in FIG. 1, and FIG. 6 shows how each circuit device shown in FIG. Shows what is stored in.

Even if it falls down, it can be easily and quickly operated and used by attaching it to a kitchen or the like.

The present invention is constructed as described above, and when it is desired to prevent the water in the water pipes from freezing during the cold winter season, the main switch M of the detection box is pressed.

If water remains in the pipe, a.
b A current passes between both terminals and the light emitting diode emits light, so all you have to do is operate the drain valve handle to release the remaining water.
When the water discharge is finished and there is no remaining water, the current passing between terminals a and b becomes zero and the light emitting diode turns off by itself, so that freezing can be prevented and the presence or absence of remaining water can be clearly confirmed.

In the unlikely event that the remaining water has been removed, it is not always possible for water to flow into the pipe again due to an incomplete drain valve, etc., so if you press the main switch to reconfirm after a few minutes, the water will be removed. It is convenient to be able to clearly determine whether or not there is re-inflow into the pipe.

For example, if you press the wrong main switch by mistake, pressing the reset switch will stop the current and restore the entire circuit to its original state, which not only makes it easy to correct the mistake, but also prevents unnecessary consumption of electricity. .

As described above, the present invention not only makes it possible to prevent water pipes from freezing, which has been considered extremely difficult in the past, but also makes it possible to confirm whether or not the equipment inside the water pipes is completely defective. This has the great effect of eliminating the great amount of inconvenience and repair costs that have been incurred.

Furthermore, since the present invention uses a dry cell battery of several volts as a power source, there is no danger to human beings, and it has the advantage of being an extremely simple, inexpensive, and labor-saving device.

[Brief explanation of the drawing]

The attached FIG. 1 is a vertical sectional side view of a house showing the conventional water supply state of the house, in which the present invention is to be implemented. Fig. 2 shows a wiring diagram of the present invention, Fig. 3 is a partially cutaway perspective view of a detection box in which the various instruments used in Fig. 2 are housed in one box, and Fig. 4 shows the device of the present invention. A is a vertical cross-sectional view in the longitudinal direction, and the opening is a vertical cross-sectional end view of the connection part. FIG. 5 is a wiring diagram of the present invention when freezing is to be prevented at three locations in a house, and FIG. 6 is a perspective view of a detection box containing the various devices used in FIG. 5. 3... Ground surface, 4... Floor surface, 5...
・・・Rise pipe, 6... Kitchen, 7...
Bathtub, 8...Toilet, 9...Water faucet, 10
...Systank, 12...Water pipe, 1
5゜16.17... Water supply pipe, 20...
A water drain valve having a water stop valve 18 and a water drain valve 19, 2
2...Operation handle, DC...Dry battery, M...Main switch, a, b...
Anode and cathode terminals, a', b'...Both terminals a, b
Lead wire from, IC integrated circuit, Tr...transistor, LD...light emitting diode, RL...
...Self-contact holding relay, l...RL
Contact, R8W... Reset switch, TD.
...Zener diode, HD...Protection diode.

Claims (1)

[Claims] 1. Both terminals a and b are provided to be inserted into the water pipe, the first circuit 0 is connected to the anode terminal a, the second circuit L2 is connected to the cathode terminal, and the first circuit L1 is connected to a dry battery power supply with the cathode grounded. D
A main switch M is connected between C and a power supply Vcc for operating an integrated circuit IC, which will be described later, and a main switch M is provided between them, and the second circuit L2 includes an integrated circuit connected to two gate circuits for amplifying the potential of a cathode terminal. An IC and a transistor Tr are provided and connected so that the amplified output of the integrated circuit IC is applied to the base B of this transistor, and a third circuit L3 is branched from the first circuit L1 and a light emitting diode or A transmission indicator LD such as a buzzer and a self-contact holding relay RL are provided in series and connected to the emitter E of the transistor Tr, and the self-contact L of the relay RL is connected in parallel with the main switch M to connect both terminals. When electricity is applied between a and b, the transistor Tr is activated and the transmission indicator L
A situation checking device for a water pipe antifreeze plate in a cold region, characterized in that a reset switch R8W is provided in the second circuit L2 so that the circuit D is activated, and a reset switch R8W directed toward the ground is provided in the second circuit L2.