JPH0585490U - Safety device of water purifier - Google Patents

Abstract

(57) [Summary] [Purpose] In a water purifier, to stabilize the purification action and prevent damage to the cartridge containing the water purification material. [Constitution] At the lower end of a cartridge 1 containing a water-purifying material, there is a water passage connecting portion 2 which serves as an inflow port. On the other hand, there is a water passage coupling seat 11 on the upper surface of the mounting bracket 10, and both can be coupled and detached. Water passage 1 for mounting bracket 10
From 3, a drainage channel 34 having a safety device 30 is branched. The safety device 30 includes a ball 31 for stopping water and a pressing spring 32.
Have and. By rotating the nipple 35, the pressing force of the pressing spring 32 can be adjusted. Drainage is drain hose 4
Discard by 0.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a safety device for a water purifier that is used by being connected to a faucet for water supply in general households.

[0002]

[Prior Art]

 Household water purifiers are used by connecting to the water supply. However, the water pressure of the water supply is maintained at a nearly constant value in the mains of the water supply, but there is a considerable difference in the water pressure at the faucet. Especially, it is low in high-rise housing and high in lowlands.

In conventional water purifiers, little consideration is given to this difference in water pressure, and it is common to simply connect the faucet and the water purifier directly through a hose. Most of them, however, have been proposed with a simple pressure control valve installed in the attachment connected to the faucet.

[0004]

[Problems to be solved by the device]

 In this way, in conventional household water purifiers, no technical measures have been taken regarding the difference in water pressure of the water supply that differs for each house.Therefore, in the case of low water pressure, the water purifier has the designed water purification function. In the case of failure and high water pressure, there was a problem that the cartridge containing the purified water material might be damaged.

Further, in the case where the valve is incorporated in the connection attachment, the water pressure cannot be adjusted sufficiently, and in addition, the drainage generated by the pressure adjustment at the time of overpressure is mixed into the purified water due to the structure. There is.

In view of the above, the present invention provides a safety device for a water purifier that is not affected by the difference in water pressure of the water supply that is different for each house and can always expect the water purification function as designed. It is something to do.

[0007]

[Means for Solving the Problems]

 The technical means of the safety device of the water purifier of the present invention is that the raw water of the tap water is sent to the inlet of the cartridge containing the water purification material and the purified water is taken out from the outlet of the cartridge. The drainage channel is provided as a branch in the water channel of the mounting bracket that is connected to the inflow port, and a check valve mechanism with adjustable back elastic pressure is installed in this drainage channel, and the water pressure in the water channel becomes overpressure. Occasionally, water was drained to the drainage channel, and this drainage was discarded as it was.

[0008]

[Action]

 In the safety device of the water purifier of the present invention, the raw water from the water supply enters the cartridge through the water passage of the mounting bracket, receives the purification action of the water purification material, becomes purified water, and exits from another outlet of the cartridge.

In the water passage of the mounting bracket, a drainage channel is provided in a branched shape, and the raw water of the tap water can also flow toward the drainage channel. However, this drainage channel is equipped with a check valve mechanism, and when the water pressure in the channel is below the set value, the drainage channel will be closed and no drainage will occur.

When the water pressure of the raw water is high and the pressure in the water passage exceeds the set value, water overcomes the back elastic pressing force of the check valve to open the valve and flows out through the discharge passage. As a result of this outflow, the water pressure in the waterway decreases, and it will always be kept below the set value.

Since the back elastic pressing force of the check valve is adjustable, the set water pressure value can be adjusted freely. In addition, the drainage that flows out through the drainage channel should be discarded without being mixed with purified water.

[0012]

【Example】

 A safety device for a water purifier according to the present invention will be described with reference to an embodiment of the drawings. 1 is a cartridge containing a water purification material such as activated carbon or hollow fiber membrane. The cartridge 1 is a separate body from the water purifier body and is detachable from the water purifier body, and can be freely replaced with a new one when the life of the water purification material has passed. At the lower end of the cartridge 1 is provided a water flow connecting portion 2 which serves as an inflow port.

Reference numeral 10 denotes a mounting bracket, which is mounted on the water purifier body in a fixed or slightly movable state. A water-permeable coupling seat 11 is provided on the upper surface of the mounting bracket 10, and the water-permeable coupling portion 2 of the cartridge 1 is fitted therein to connect the both. The cartridge 1 is detachable, and water can be passed from the mounting bracket 10 to the cartridge 1 in the coupled state.

The mounting bracket 10 is provided with a raw water inlet 12 to which the raw water supply hose 20 is connected. The other end of the raw water supply hose 20 is connected to a water faucet via an attachment (not shown). Therefore, tap water is guided from the faucet through the hose 20 to the raw water inlet 12. A water passage 13 is provided in the mounting bracket 10, and the raw water inlet 12 and the water connecting seat 11 communicate with each other. Therefore, when the cartridge 1 is loaded, the raw water flows into the cartridge 1.

Raw water that has entered from the water-flow coupling portion 2 at the lower end, which is the inlet of the cartridge 1, moves upward in the cartridge 1 and, during that time, is subjected to a purification action by the water purification material contained in the cartridge 1. .. Then, the purified water exits from an outlet (not shown) provided in the upper portion of the cartridge 1, passes through a purified water supply hose (not shown), and returns to the original water faucet attachment, and from there. Water is supplied. However, it is possible to freely change the design of the method of sending purified water and its water supply position.

A safety device 30 is incorporated in the mounting bracket 10. The main body of this safety device 30 is a check valve mechanism, 31 is a ball which is a water shutoff valve body, 32 is a push spring which is a rear pressing elastic body, 33 is a valve seat, 34 is a drainage channel, 35 is a nipple, and 40 is It is a drain hose. Then, when the water pressure in the water passage 13 of the mounting bracket 10 is equal to or lower than the set value, the ball 31 is brought into close contact with the valve seat 33 and the drain passage 34 is shut off by the back surface pushing force of the pushing spring 32. Further, when the water pressure is in the overpressure state of the set value or more, the ball 31 is pushed by the water pressure, is separated from the valve seat 33, and drainage occurs, thereby lowering the water pressure in the water passage 13.

By rotating the nipple 35, the screwing amount with the mounting bracket 10 is changed, and the pressing force of the pressing spring 32 can be adjusted. Therefore, the set water pressure value for starting drainage can be freely adjusted from the outside. The drainage drained from the safety device 30 passes through the drain hose 40 and is discharged to a kitchen sink or the like. Therefore, this drain will not be mixed with the purified water.

It should be noted that the present invention is not limited to the above-mentioned embodiment, and the design can be freely changed within the range described in the scope of claims for utility model registration. In particular, the form of the safety device 30, that is, the types and shapes of the water shutoff valve body 31 and the back surface pressing elastic body 32, the structure of the nipple 35, and the like can be freely adopted as long as the same operation can be achieved.

[0019]

[Effect of the device]

 The safety device of the water purifier of this invention is provided on the mounting bracket, and the pressure can be adjusted immediately before the raw water enters the cartridge, so that the water pressure in the cartridge can always be maintained at an appropriate pressure state, and It does not cause any abnormal operation or breakage or damage of the cartridge. In addition, since the safety device is built into the mounting bracket, it is possible to use a check valve with sufficient capacity without being restricted by space, as compared to the system that is built into a conventional faucet attachment, and it is possible to use a check valve for water supply. It can sufficiently cope with abnormally high water pressure.

Further, since the back surface elastic pressing force of the check valve can be freely adjusted, the pressure value for starting drainage can be freely set, which is practically convenient. Moreover, since the drainage drain is discarded as it is and is not mixed into the purified water, clean purified water can always be obtained.

[Brief description of drawings]

FIG. 1 is a sectional view of an embodiment of a safety device for a water purifier according to the present invention.

[Explanation of Codes] 1 Cartridge 2 Water-passage coupling portion 10 Mounting bracket 11 Water-passage coupling seat 12 Raw water inlet 13 Water passage 20 Raw water supply hose 30 Safety device 31 Ball 32 Push spring 33 Valve seat 34 Drainage passage 35 Nipple 40 Drain hose

Claims (1)

[Scope of utility model registration request] 1. In a water purifier adapted to feed raw tap water into an inlet of a cartridge containing a purified water material, and to take out purified water from the outlet of the cartridge, a passage of a mounting bracket connected to the inlet of the cartridge. A drainage channel is provided in the waterway, and a check valve mechanism with adjustable back elastic pressure is installed in this drainage channel, and when the water pressure in the waterway becomes overpressure, water is drained toward the drainage channel. A safety device for a water purifier that is designed to be released and to discard this waste water as it is.