JPH0344605B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention provides for the following: when a pressure state that changes due to the negative pressure generated when a pool swimmer or the like is sucked into the drainage part of the pool continues for a certain period of time, The present invention relates to a pool filtration device equipped with a safety function to stop a pump in a filtration system to prevent an unexpected situation such as a drowning accident.

(Prior art) Conventionally, the water filled in a pool is easily contaminated by the hair of swimmers, cotton and hair from swimwear, and even bacteria attached to it, and if left untreated, the water will become contaminated. To prevent this, a filtration system is installed to separate hair and sterilize it by filtration.

However, in order to circulate water to the filtration system path,
Normally, water is sucked in from the drainage part at the deepest part of the pool, and the filtered water is returned into the pool from the water supply part that opens on the side wall, so there is always a flow of water from the water supply part to the drainage part inside the pool. In addition, because the bottom surface becomes lower toward the direction of water flow, swimmers are easily attracted to the drainage section, and in order to prevent accidents due to inhalation, etc., a rostre-shaped lid or the like is placed over the drainage section. However, if the lid was removed, people were sometimes sucked in, or even if it was not removed, their bodies were stuck to the lid, making it impossible for them to surface, resulting in problems such as drowning.

In order to eliminate such inconvenience,
-119865 and Utility Model Application Publication No. 60-83014, etc., were previously invented, and both detect changes in water pressure due to negative pressure caused when a person is sucked into the drain and blocks the water pipe, and the pump of the filtration device is activated. It is characterized by stopping.

However, in the case of the conventional example, when the water pressure changes momentarily, for example, when hair etc. are sucked into the water pipe, the drain port in the drainage part may be momentarily blocked.
Even in cases where there is no need to stop the pump of the filtration device, such as when a swimmer momentarily blocks the drain port while swimming, pressure changes may be detected and the pump may stop more than necessary. There was the inconvenience of doing so.

(Problems to be Solved by the Invention) Therefore, the present invention solves the problem that swimmers etc. may be inhaled because the conventional technology only blocks the drainage part with a rostrum-like lid and does not have a safety function in the filtration system. In order to prevent accidents, the system detects when swimmers are inhaled into the drainage area and stops the pump of the filtration system to eliminate the conventional problem and prevent accidents. The purpose of the present invention is to provide a pool water circulation filtration device that can efficiently filter water and reduce failures of circulation pumps, etc. by preventing unnecessary stoppage of the pump of the filtration device. shall be.

(Means for Solving the Problems) That is, the present invention provides for reducing the pressure in the drainage part into the filtration system path, which is formed by disposing a hair collector, a pump, a filter, etc. between the drainage part and the water supply part of the pool. A change in the pressure can be detected, and the abnormal pressure time can be counted and a signal can be generated so that when the abnormal pressure in the drainage section continues for a predetermined period of time, a signal is generated to stop the pump. The above object is achieved by a pool water circulation filtration device which is provided with a detection section equipped with a timer.

(Function) The present invention configured by the above means is such that water in a pool is normally supplied from a water supply section and is contaminated by swimmers, so the water collector, pump, etc.
The water is filtered through a filtration system line formed by piping with a filter, etc., and then supplied again from the water supply section, so that the detection section does not operate under the normal suction pressure of the drainage section at this time. However, in the event that the rostre-like lid of the drainage section comes off, or even if it does not come off, there may be a situation where a swimmer or the like is sucked into it, or is attracted to it and becomes in a dangerous situation where it becomes impossible to float. When detected by the detection unit disposed in the filtration system, the pump is stopped and the filtration system is brought to a water stop state. At that time, a timer is connected to the detection unit, and the timer is activated when the pressure detected by the detection unit in an abnormal state such as when a swimmer is sucked in continues for a preset predetermined time. The pump is configured so that it activates for the first time and issues a signal to stop the pump, so if there is a momentary pressure change when hair etc. is sucked in and there is no need to stop the pump, continues to operate without stopping.

If the abnormal pressure state continues for a predetermined period of time, the timer is activated, and the pump is stopped, the pump is activated and filtration is restarted immediately after the dangerous condition is resolved.

(Example) In order to further clarify the gist of the present invention,
One embodiment will be explained using the drawings.

As shown in FIG. 1, the detection unit 1 includes a hair collector 31 installed on the ground GL near the pool 2,
2. The filter 33 is connected in series through a water pipe 34 that connects to the drainage part 21 that opens at the bottom of the pool 2 through a rooster-shaped lid 211, and the water pipe 34 is further connected to the water supply part 22 on the side wall of the pool 2. In the filtration system 3 which is formed by electrically connecting the pump 32 and the filtration pump control panel 35, a pressure transmission pipe 11 is branched from the water pipe 34 upstream of the capillary collector 31. It is disposed at the tip and is electrically connected to the filtration pump control panel 35 to constitute a pool water circulation filtration device A.

In addition, the detection unit 1 disposed at the tip of the pressure transmission tube 11
As shown in FIG. 2, a bellows 12 that can be expanded and contracted by changes in water pressure is fitted inside the tip of the pressure transmission tube 11, and the expansion and contraction are controlled by a lever 13,
The mercury is transmitted through the rod 14 as a swinging motion of the mercury switch 15 to connect or disconnect the power source. Further, in order to regulate the amount of change in water pressure to be transmitted, a spring 16 for setting a desired pressure (hereinafter referred to only as a setting spring) and a spring 17 for setting a desired operation gap between set pressures are provided.
(hereinafter simply referred to as clearance spring) to restrict the movement of the rod 14, and only when the pressure generated when a swimmer or the like is sucked into the drainage section 21, the mercury switch 15 is made to swing. It is configured so that the switch is turned on. A timer 18 is connected to the mercury switch 15, and the timer 18 counts the time the mercury switch 15 is in the ON state for a desired number of seconds, and when the abnormal pressure state, that is, the ON state of the switch 15 continues for the predetermined period, It is configured to operate for the first time, transmits a signal to the filtration pump control panel 35 via the relay 19, stops the pump 32, and emits an alarm sound and a warning light to alert the pool manager etc. Here, the timer 18 counts a desired time, and the pump is stopped only when the abnormal pressure state continues for the desired time, so that the swimmer or the like can instantly
When swimming with the pump 11 blocked, the pump operates immediately and does not repeatedly stop the pump unnecessarily.

Next, the operation of this embodiment will be explained. First, while operating the pump 32, a situation where a swimmer or the like is sucked into the drainage section 21 using a dummy or the like is simulated, and the pressure change at that time causes the mercury switch 1 to be turned off.
5 operates, the setting spring 16 and clearance spring 17
After adjusting the adjustment part (not shown), the pool 2
released to swimmers. Even if the pool filtration device A is operated at any time after release, there may be instantaneous water pressure changes due to the start of the pump 32, pulsating water pressure changes when hair etc. is inhaled, or instantaneous water pressure changes caused by swimmers etc. The pump does not stop when swimming with the rostrtle-like lid 211 closed, but the pump is stopped only in an emergency such as when a swimmer is sucked in, and a warning is given with an alarm sound, a warning light, etc. When the inhaled swimmers and the like are removed and the water pressure in the water pipe is restored, the mercury switch 15 returns to its original state and turns off the power, so that the purification action is automatically restarted.

In this embodiment, the detection unit is installed in the existing filtration system, and the bellows expands and contracts due to changes in water pressure, which is transmitted to the installation spring and gap spring via the screw and rod.
Although a method for detecting a change in water pressure caused by a swimmer or the like being sucked into a drainage section has been described, the present invention is not limited to this embodiment. As long as the above-mentioned purpose, operation, and effects of the invention described below are achieved, any suitable detection unit may be used, and when a new circulating filtration system is installed, the detection unit and timer may be incorporated into the filtration pump control panel. Pressure changes due to inhalation by swimmers, etc. may be detected using a sensor, etc., and the switch may be arbitrarily determined, and none of these changes will change the gist of the present invention. Needless to say.

(Effects of the Invention) As explained in detail above, the present invention is capable of absorbing changes in the water pressure flowing through the circulation filtration system that should circulate and purify the water in the pool, such as those caused by swimmers etc. detects only the occurrence of
In addition, it is equipped with a detection unit that emits an alarm sound or a warning light to alert the pool manager, etc., to ensure the safety function. The pump does not malfunction due to instantaneous pressure changes such as those caused by inhalation clothing or swimmers who momentarily block the lostle-shaped lid of the drainage section while swimming, so the pump does not malfunction frequently. The pump will not stop and confuse the pool manager, and the pump motor will not be damaged. Furthermore, when a swimmer or the like is sucked into the drainage section, the system detects abnormal pressure that continues for a desired period of time and quickly stops, making it possible for most of the swimmers to surface on their own. Because managers and others who are alerted to a dangerous situation immediately jump in or take other action, accidents that lead to drowning can be virtually eliminated, and this has a significant effect on human life safety.

Furthermore, it can be installed in any filtration system, whether existing or new, and the detection unit itself with safety functions has a simple structure and low cost, so there is no need for large installation costs. , it can be easily implemented and it must be said that it is a very useful invention.

[Brief explanation of drawings]

The drawings show one embodiment of the pool water circulation filtration device of the present invention, and FIG. 1 is a schematic diagram showing the overall arrangement, and FIG. 2 is a front view showing the main parts of the detection section. A... Pool filtration device, 1... Detection section, 2...
Pool, 21...drainage section, 22...water supply section, 3...
...filtration system line, 32...pump.

Claims (1)

[Claims] 1. A pressure change in the drainage part can be detected into a filtration system path consisting of a hair collector, a pump, a filter, etc. arranged between the drainage part and the water supply part of the pool, and The pump is characterized by being provided with a detection section that is equipped with a timer that can count the abnormal pressure time and issue a signal so that the pump is stopped by issuing a signal when the abnormal pressure continues for a predetermined period of time. Pool water circulation filtration device.