JPH03123689A - Water purifier - Google Patents

Abstract

PURPOSE:To replace a cartridge by simple work only by operating a sleeve pipe and the cartridge by constituting a water purifier so that the cartridge is fixed to a main body-fixing stand by the slidable sleeve pipe. CONSTITUTION:In a water purifier 1 removing the residual chlorine in tap water, as a cartridge 3, one having a water pressure-resistant container structure is used. By connecting the water passing port of either one of the inlet and outlet parts of the cartridge to a slidable sleeve pipe, the water purifier wherein the cartridge is mounted to a fixing stand 2 in a water-sealable manner is obtained. When the cartridge 3 is replaced, the sleeve pipe 4 is slid upwardly and, next, the cartridge 3 is rotated and a connection screw 16 is loosened to detach the cartridge. The new cartridge 3 is mounted by the reverse procedure.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention particularly relates to a cartridge connection structure for a water purifier incorporated in a sink.

[Conventional technology]

In conventional water purifiers built into sinks, the cartridge is housed in a case that is a water pressure resistant container, and the cartridge removes residual chlorine and other substances by passing water through it, as shown in the catalog of ``R Insta Pure Under Sink Water Filter.'' When the cartridge reached the end of its lifespan and its ability to do so had declined, the case was first removed from the main body, such as a mounting bracket, and then the case was reinstalled after replacing the cartridge.

[The burden that the invention attempts to solve]

The above conventional technology has a structure in which a case filled with water is attached and detached, and when the case is removed, a considerable amount of water filling the space between the outer case of the cartridge and the mounting bracket is removed. There was also the problem that cartridge replacement was difficult, as water would spill out of the case, staining the inside of the sink with water, and it was necessary to use car tools to install and remove the case.

The present invention facilitates cartridge replacement work, and
The purpose is to provide a water purifier that can minimize the amount of water spilled when replacing cartridges.

[Means for Solving the Problems] In order to achieve the above object, the water purifier of the present invention has the cartridge itself as a water pressure resistant container, and the cartridge is fixed to the main body fixing base with a sliding sleeve tube. Now, the cartridge replacement process is as simple as connecting the cartridge to the fixing base and connecting the sleeve pipe, and the amount of water spilled during the cartridge replacement process is reduced from the small space inside the cartridge connection part and the sleeve pipe. It requires only water and can be easily disposed of by soaking it in cloth or the like.

[Function] The cartridge can be replaced simply by connecting and fixing one of the inlet or outlet sides of the cartridge to a fixed base and connecting the other side by sliding the sleeve tube, and it is also easy to attach and detach the cartridge. This makes it possible to limit the amount of water that sometimes spills to the small volume of the connection part, including the inside of the sleeve pipe, eliminating the need to attach and detach parts on the main body side, such as the fixing stand, and making cartridge replacement a minimal and easy task. Moreover, the water inside the main unit does not spill out.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1, 2, and 3. The water purifier 1 has a fixed base 2, a cartridge 3, and a sleeve pipe 4 as main components. The cartridge 3 is a water-sealed container by screwing together a case 6 having an inlet 5 and a cap 8 having an outflow lower, and sealing the case with an O-ring 9. Reference numerals 10 and 11 designate a first filter and a second filter in the form of a mesh, respectively, and 613, which serves as the inlet and outlet of the activated carbon layer 12, is a hollow filter housed in the filter case 14. The inlet 5 is provided with a mounting screw 15, which can be screwed together with a connecting screw 16 of the cartridge of the fixing base 2 and an O-ring 17 so as to be watertight. An O-ring 18 is attached to the outside of the outflow lower and can be joined to the joint 4 in a water-tight manner. An inflow side pipe 20 is fixed to the inflow passage 19 of the fixed base 2 with a nut 22 so as to be watertightly sealed with a packing 21. Also.

A water seal valve 23 is provided so as to be pressed against a valve seat 25 by a spring 24 so as to be water sealable. When the cartridge 3 of the fixed base 2 is not attached, the water seal valve 23 is pressed against the valve seat 25 as shown in FIG. 3 to seal off water that is about to overflow from the inlet pipe. When the cartridge 3 is attached to the fixed base 2, the water seal valve 23 is pushed down by the first filter 10, as shown in FIG. 1, so that water can pass through. An outflow side pipe 27 is fixed to the outflow passage 26 of the fixed base 2 with a nut 29 so as to be watertight with a gasket 28. A check valve 30 is provided at the inflow portion of the outflow path 26 so as to be water-sealable between it and a valve seat 31, and an O-ring 33 is provided on the guide portion 32 on the outer periphery, so that the sleeve pipe 4 can be water-sealed. It is designed to slide. When the outflow path 26 is not in a state where water is flowing, the check valve 30 is seated on the valve seat 31 as shown in FIG. 3, and the backflow of water from the outflow side pipe 27 is prevented. When water is flowing, the check valve 30 is pushed up by the water flow as shown in FIG. 1, allowing water to flow.

Raise the joint 4 as shown in FIG. 3, attach the cartridge 3 to the fixing base 2 as shown in FIG. Can be fixed to allow water to pass through.

FIG. 4 shows an example of the usage state of the water purifier 1 according to an embodiment of the present invention, in which screws 36 are attached to the side wall 35 of the sink 34.
Setting can be performed by fixing the fixing base 2 at 37. A water purification faucet 39 and a mixed faucet 40 are provided on the rear side of the sink 38, and the mixed faucet 40 has a hot water stop faucet 4.
A hot water pipe 42 that passes hot water from 1 to a cold water faucet 43
A water supply pipe 44 through which tap water flows is connected.

A raw water pipe 45 branches off from the water supply pipe 44, and an inflow pipe 20. Water purification faucet 3 along with outflow side pipe 27
9 is connected. By operating the lever 46, the raw water pipe 45. Inflow side pipe 20. Water purifier 1. Water is passed through the outflow side pipe 27, and purified water can be obtained from the nozzle 47. At this time, in the water purifier 1, the first filter 10
The tap water that has passed through has chlorine and organic substances removed in an activated carbon layer 12, and then passes through a second filter 11 to a hollow filter 13, where turbidity components are removed, and it flows out from an outflow lower as purified water. Note that the arrows in the figure indicate the direction in which water flows.

To replace the cartridge 3, slide the sleeve tube 4 upwards, then rotate the cartridge 3 and loosen the connecting screw 16 to remove it. and new cartridge 3
Install in reverse order.

When water is passed through the water purifier 1, the activated carbon in the activated carbon layer 12 will eventually adsorb chlorine and organic substances, and the removal performance of these substances will deteriorate, or the hollow filter 13 will sufficiently capture turbid components and become clogged. This causes water flow to decrease. When the cartridge 3 becomes unusable, it must be replaced with a new one. If a large amount of water is spilled when replacing the cartridge 3, the spilled water will wet the bottom of the storage area of the water purifier 1 in the sink 34, and even if the cartridge 3 is removed, it will leave a stain afterwards, which is a problem. In the present invention, the water in the inflow side pipe 20 and the outflow side pipe 27 is prevented from flowing out even if the cartridge 3 is removed by using the overflow prevention valve 23 and the check valve 30. It is only necessary to spill a small amount of water inside the inlet 5 and the sleeve pipe 4, and the interior of the sink 34 will not get wet and dirty with spilled water, just by placing a cloth or the like underneath. Moreover, since the car 1 to the cartridge 3 can be replaced by simply attaching and detaching the upper and lower sleeve pipes 4 and the mounting screws 15, even an amateur can easily replace the cartridge 3.

FIG. 5 shows a water purifier 1a according to another embodiment of the present invention, in which a fixed base 2a is attached to a cylindrical inlet 5a of the water purifier 3a.
Insert the cylindrical connecting part 16a of the sleeve tube 4a.
The cartridge 3a can be fixed by screwing a mounting screw 47 into the upper part of the fixing base 2a and tightening the connecting screw 48 of the fixing base 2a. Other structures and symbols are the same as in FIG. According to this embodiment, the sleeve pipe 4a
Simply loosen or tighten the upper and lower mounting screws 47.
In other words, the cartridge 3a can be removed by simply operating the sleeve pipe 4a.
can be replaced, making the replacement work easier. Also, spillage of water can be minimized as in the embodiment shown in FIG.

[Effects of the Invention] According to the present invention, the sleeve pipe 4 and the cartridge 3.3a
Since the cartridges 3 and 3a can be replaced only by the operation of
This has the effect that the amount of water spilled when replacing the cartridges 3, 3a can be minimized.

[Brief explanation of drawings]

FIG. 1 is a longitudinal cross-sectional view of a water purifier according to an embodiment of the present invention, FIG. 2 is a partial cross-sectional view of a cartridge according to an embodiment of the present invention, and FIG.
The figure is a vertical cross-sectional view of a fixed base according to an embodiment of the present invention, FIG. 4 is an external view showing an example of a water purifier according to an embodiment of the present invention attached to a sink, and FIG. 5 is another embodiment of the present invention. FIG. 2 is a longitudinal cross-sectional view of an example water purifier. 1.1a...Water purifier, 2,2a...Fixed stand, 3,3
a... Cartridge, 4, 4a... Sleeve pipe, 5
゜5a・Inlet, 15... Mounting screw, 16... Connection screw, No. (2) No. Kasumi

Claims (1)

[Claims] 1. In a water purifier for the purpose of removing residual chlorine, etc. from tap water, the cartridge has a water pressure container structure, and the water passage port on at least one of the inlet side and the outlet side can be slid. A water purifier characterized in that it can be attached to a fixed base in a water-sealable manner by connecting it to a sleeve pipe. 2. The water purifier according to claim 1, wherein either the inlet side or the outlet side is fixed to a fixed base by means such as screwing, and the other side is connected by the sleeve pipe. . 3. In the water purifier according to claim 1, either the inlet side or the outlet side is engaged in a water-sealing manner, and the other side is connected to the sleeve pipe, and the sleeve pipe is fixed to a fixed base. A water purifier featuring: