JP3775085B2 - Water purifier - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a water purifier having a configuration in which a filtration cartridge is screwed into a water purifier body to be connected and coupled.
[0002]
[Prior art]
In recent years, interest in water has increased, and the spread of water purifiers is remarkable in each home and workplace. In particular, a water purifier that is directly connected to a water tap or the like has become widely used because it is small, light and easy to attach and use.
[0003]
Many of the water purifiers directly connected to the water tap have a configuration in which a filtration cartridge is screwed into a water purifier body to be connected and coupled. In addition, the state of the water to be discharged can be switched by switching the switching device as if turning the faucet faucet. Depending on the application, the raw water can be discharged straight as it is, or it can be discharged as a shower, or purified water. It is designed to switch easily whether to discharge water.
[0004]
Hereinafter, a conventional water faucet directly connected water purifier will be described with reference to the drawings.
FIG. 3 is an external perspective view of a conventional water purifier, and FIG. 4 is a cross-sectional view of the conventional water purifier.
[0005]
As shown in FIG. 1, a conventional water faucet direct-coupled water purifier comprises a main body portion composed of a water purifier upper case 7 and a water purifier lower case 6, and has a filtration cartridge 8 on its side, and a top portion. While having the joint pipe 9, it has the spout cap 4 and the purified water spout part 5 in the lower part, and also has the operation lever 3 for water discharge switching. The joint pipe 9 is fitted and connected to the water tap 1, and the fixing nut 2 is tightened to be fixed to the water tap 1.
[0006]
In this water faucet directly connected water purifier, the raw water from the faucet 1 flows from arrow A to F, and when the operating lever 3 is in the position for discharging the purified water, it flows from arrow A to B, C, D, E. That is, it flows into the filtration cartridge 8, is filtered to become purified water, and is discharged from the purified water discharge unit 5.
[0007]
The filtration cartridge 8 will be described in more detail. As shown in FIG. 4, the filtration cartridge 8 is disposed in the pressure-resistant case 8b on the inlet side, and has a water outlet joint hole 13a in the center and water in the surrounding area. A top partition plate 13 having an inlet 13b, a bottom partition plate 16 disposed on the bottom side, a hollow fiber membrane portion 17 disposed in the center portion, and a granular activated carbon 15 disposed in the periphery thereof. The felt 14 arranged on the inlet side is provided, and the inner side of the pressure-resistant case 8b on the inlet side is formed outside the spiral screw 8d formed on the inner side and the cylindrical cartridge joint 8a. The cylindrical cartridge joint 8 is coupled by screwing with the spiral screw 8d.
[0008]
On the other hand, the water purifier main body is provided with a coupling joint 12 having an inner pipe 12b into which the outlet coupling hole 13a portion of the filtration cartridge 8 fits. 8a is configured such that the helical male screw 12e and the helical female screw 8c are screwed together to be fitted.
[0009]
In the above configuration, the raw water that has flowed into the filtration cartridge 8 passes through the felt 14 from the water inlet 13b, and residual chlorine, organic matter, and the like in the raw water are removed by the granular activated carbon 15. After finishing the treatment with the granular activated carbon 15, it passes through the bottom partition plate 16, proceeds to the hollow fiber membrane portion 17, and is physically filtered to remove foreign substances in the raw water, and then returns to the top partition plate 13 again. It is discharged from the water outlet 5.
[0010]
[Problems to be solved by the invention]
By the way, in the said conventional water purifier, when a user removes or attaches the filtration cartridge 8 from the coupling joint 12 by a screw method, the top | upper surface partition plate 13 inside the filtration cartridge 8 is the inner side in the coupling coupling 12. Since it may not rotate due to frictional resistance with the pipe line 12b and relative sliding occurs inside the filtration cartridge 8, an unpleasant internal sliding sound due to the granular activated carbon 15 such as “Jari, Jari” is generated. was there.
[0011]
The present invention pays attention to the above-mentioned conventional problems, eliminates the internal sliding sound of the filtration cartridge in the assembly process by screwing the filtration cartridge to the water purifier body, and does not cause the user to feel uncomfortable when removing or installing the filtration cartridge. The purpose is to provide a water purifier.
[0012]
[Means for Solving the Problems]
In order to achieve the above object, the present invention is a water purifier configured to connect and couple a filtration cartridge to a water purifier main body, provided with a coupling joint having a cylindrical portion in the water purifier main body, and the filtration cartridge having a cylindrical shape A space for storing a filter medium or the like by forming a groove with a triangular cross section at the corner of the rear end of the cylindrical cartridge joint in the filtration cartridge. A rectangular parallelepiped protrusion whose end is chamfered on the top partition plate, and the cartridge joint is screwed into a pressure-resistant case equipped with the top partition plate, and the end of the protrusion chamfered and the groove To obtain a water purifier in which the internal components of the filtration cartridge are integrated.
[0013]
According to the present invention, when the filtration cartridge is connected to and coupled to the water purifier main body with a screwed structure, the protrusion of the top partition plate and the groove of the cartridge joint are fitted, so that the internal components of the filtration cartridge are integrated. Since the internal structural members do not slide by the rotation when screwing, the internal sliding noise can be eliminated, so that it is possible to provide a water purifier that does not make the user feel uncomfortable when removing or installing the filtration cartridge. .
[0014]
DETAILED DESCRIPTION OF THE INVENTION
The invention according to claim 1 of the present invention is a water purifier having a configuration in which a filtration cartridge is connected to and coupled to a water purifier main body, and a cylindrical cartridge joint on the filtration cartridge side is connected to a coupling joint on the water purifier main body side. And a groove having a triangular cross section is formed at the corner of the rear end of the cylindrical cartridge joint in the filtration cartridge, and the end is chamfered on the top partition plate that divides the space for storing the filter medium and the like. The cartridge joint is screwed into a pressure-resistant case equipped with the top partition plate and the chamfered end of the protrusion and the groove are fitted together to integrate the internal components of the filtration cartridge. This is a water purifier that integrates the internal components of the filtration cartridge and eliminates internal sliding noise in the process of connecting and coupling the filtration cartridge to the water purifier body. It has the effect that it can be. In addition, the shape of the groove and the projection has an effect of making it possible to obtain a necessary fitting depth in a narrow portion.
[0016]
According to a second aspect of the present invention, in the water purifier according to the first aspect, the groove is provided at a plurality of locations on the rear end portion of the cylindrical cartridge joint, and a plurality of protrusions to be fitted therewith are also provided. When the cylindrical cartridge joint is rotated by a screw method, the plurality of grooves and projections approach each other and can be fitted to each other at an arbitrary position.
[0017]
The invention according to claim 3 of the present invention is the water purifier according to claim 1 or 2 , wherein the raw water straight water discharge channel for discharging the supplied raw water as it is, the raw water shower water discharge channel for discharging water as a shower, and the purified water It is provided with a water switch that is selectively connected to any of the roads, and has the effect that any of raw water, shower water, and purified water can be discharged arbitrarily.
[0018]
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
(Embodiment 1)
FIG. 1 is a cross-sectional view of the water purifier according to Embodiment 1 of the present invention, and FIG. 2 is a detailed perspective view of a filtration cartridge portion of the water purifier. In addition, in a drawing and an explanatory note, the same code | symbol is used for the same component as the component of the conventional water purifier. Moreover, since the external appearance of a water purifier is the same as FIG. 3 of the prior art, it demonstrates in common with FIG.
[0019]
The water purifier of the first embodiment is formed in the same manner as the conventional water purifier shown in FIG. In FIG. 3, 1 is a water tap, 2 is a fixing nut, 3 is an operation lever for switching water discharge, 4 is a water discharge cap, 5 is a water purifier, 6 is a water purifier lower case, and 7 is a water purifier upper case. , 8 is a filtration cartridge, and 9 is a joint pipe. The structure and the flow of raw water and purified water are the same as in the prior art, and the description thereof will be omitted.
[0020]
The features of the water purifier of the first embodiment are the connection configuration of the filtration cartridge to the water purifier body and the internal configuration of the filtration cartridge.
[0021]
Hereinafter, the configuration will be described with reference to FIGS. 1 and 2.
The filtration cartridge 8 is disposed on the inlet side in the pressure-resistant case 8b, and has a top partition plate 13 having a water outlet joint hole 13a in the center and a water inlet 13b in the periphery, and a bottom side. Are provided with a bottom partition plate 16, a hollow fiber membrane portion 17 disposed at the center, a granular activated carbon 15 disposed around the bottom partition plate 16, and a felt 14 disposed on the inlet side. Further, the inner side of the pressure-resistant case 8b on the inlet side is coupled by screwing of a helical screw 8d formed on the inner side and a helical screw 8d formed on the outer side of the cylindrical cartridge joint 8a.
[0022]
An O-ring 20 for keeping confidentiality with the pressure-resistant case 8b is attached to the outside of the cartridge joint 8a, and the end face of the cartridge joint 8a on the side close to the top partition plate 13 and a cylindrical hollow portion Twelve grooves 8e are provided at the inner corners. The groove 8e has a triangular cross-sectional shape (FIG. 2).
[0023]
A filter 13c is provided at the water inlet 13b of the top partition plate 13 for the purpose of removing the infiltrated coarse foreign matter and preventing outflow of granular activated carbon 15 described later. Further, six ribs 13d for reinforcement are provided radially at the water inlet 13b, and further, pins 13e protrude from the rib 13d toward the downstream side in the water flow direction. The pin 13e keeps the distance between the felt 14 and the filter 13c constant, and forms a small room 13f here. Then, the raw water that has entered from the inlet 13b functions to pass uniformly through the felt 14 and to flow uniformly into the granular activated carbon 15 disposed downstream of the felt 14.
[0024]
Further, among the six radial reinforcing ribs 13d of the top surface partition plate 13, two 180-degree opposing ribs are provided with rectangular parallelepiped protrusions 13h, respectively. The part is chamfered 13j. Then, the chamfer 13j of the protrusion 13h, that is, the triangular portion is slid into the triangular groove 8e in the cartridge joint 8a to be fitted.
[0025]
The bottom partition plate 16 is provided with a filter 16a, and a space 16b is formed between the filter 16a and the bottom of the pressure-resistant case 8b. The filter 16a has radial reinforcing ribs in the same manner as the filter 13c.
[0026]
The hollow fiber membrane part 17 is the core structural member of the water purifier, like the granular activated carbon 15, and physically filters foreign substances in the raw water. The hollow fiber membrane portion 17 is constituted by a cylindrical hollow fiber membrane case 17a that forms an outer shell and a hollow fiber membrane 17b that is a hollow cylindrical membrane, and the surface of the hollow fiber membrane 17b is covered with powdered activated carbon 18. More accurate filtration is performed than the granular activated carbon 15 described above.
[0027]
Further, the upper part of the hollow fiber membrane case 17 a is configured to be fitted into the top partition plate 13. A space 13g is formed inside the top surface partition plate 13 into which the hollow fiber membrane case 17a is fitted, and the outlet joint of the above-described top surface partition plate 13 that is also the outlet of the filtration cartridge 8 is formed on the top surface of the space 13g. A hole 13a is provided, and the outlet joint hole 13a is fitted into the inner pipe 12b of the connecting joint 12 described above.
[0028]
On the other hand, the water purifier main body is provided with a coupling joint 12 having an inner pipe 12b into which the outlet coupling hole 13a portion of the filtration cartridge 8 fits. 8a is configured such that the helical male screw 12e and the helical female screw 8c are screwed together to be fitted.
[0029]
The filtration cartridge 8 is provided with a screw fitting loosening screw 19 so as not to rotate together when the filtration cartridge 8 is attached to or removed from the coupling joint 12.
[0030]
The water purifier main body side has a connecting pipe 11, and the connecting pipe 11 and the connecting joint 12 each have two parallel water channels. The water channels are fitted into each other, and the two water channels are located on the primary side and the secondary side of the filtration cartridge 8. Further, the coupling joint 12 is also connected to the filtration cartridge 8, and this connection portion has a double pipe structure so as to match the structure of the filtration cartridge 8. The double pipe portion is composed of an inner conduit 12b and an outer conduit 12a. The inner conduit 12b and the outer conduit 12a are primary water channels 12c, and the inner conduit 12b has two interiors. This is the secondary water channel 12d.
[0031]
In the water purifier having the above-described configuration, when raw water flows in the direction B from the switching valve, the raw water passes through the connecting joint 12 from the connecting pipe 11 and further enters the filtration cartridge 8 from the primary water channel 12c. The raw water that has flowed in is treated with the granular activated carbon 15, and then passes through the filter 16 a provided on the bottom partition plate 16 and enters the space 16 b at the bottom of the pressure-resistant case.
[0032]
The raw water that has reached the space 16b changes its direction of travel by 180 degrees and proceeds to the hollow fiber membrane portion 17. The hollow fiber membrane part 17 is the core structural member of the water purifier, like the granular activated carbon 15, and physically filters foreign substances in the raw water. Powdered activated carbon 18 is coated on the surface of the hollow fiber membrane 17b, and filtration with higher accuracy than the granular activated carbon 15 described above is performed. The raw water is purified by removing foreign matter when passing through the pores from the outside to the inside of the hollow fiber membrane and then passing upward through the inner water channel of the hollow fiber membrane, and the top where the hollow fiber membrane case 17a is fitted. It goes out to the space 13g inside the surface partition plate 13. Since the outlet joint hole 13a of the top partition plate 13 which is also the outlet of the cartridge is located on the top surface of the space 13g, the outlet joint hole 13a is fitted into the inner pipe line 12b of the connecting pipe joint 12. The purified water passes through the secondary side water channel 12 d of the connection pipe 11 and the connection joint 12 and is discharged from the purified water discharge unit 5.
[0033]
Next, with respect to the component surface, the object is such that the rectangular parallelepiped protrusion 13h formed on the reinforcing rib 13d of the top partition plate 13 and the triangular groove 8e of the cartridge joint 8a are fitted. This is to prevent unpleasant internal sliding noise caused by the rotation of the filtration cartridge 8 that occurs when the cartridge 8 is removed from or attached to the coupling joint 12 by a screw method.
[0034]
The internal sliding sound means that the top partition plate 13 does not rotate synchronously due to the frictional resistance caused by the fitting between the inner pipe 12b and the outlet joint hole 13a when the pressure-resistant case 8b and the cartridge joint 8a are rotated. This is a sliding sound generated between the rotating system component member and the stationary system component member. More specifically, the rotational system components are the pressure-resistant case 8b, the cartridge joint 8a, and the bottom partition plate 16, and the stationary system components are the top surface partition plate 13 and the hollow fiber membrane portion 17. The sliding sound is a sound generated when the granular activated carbon 15 enters the sliding portion between the bottom partition plate 16 and the hollow fiber membrane portion 17 and rubs against sand called “Jari”.
[0035]
The reason why the rectangular parallelepiped protrusion 13h having the chamfer 13j formed on the reinforcing rib 13d in the top surface partition plate 13 is fitted into the triangular groove 8e in the cartridge joint 8a is that the top surface partition plate of the cartridge joint 8a. This is because the thickness of the flange 8f for holding the O-ring 20 is not reduced because the O-ring 20 is attached in the vicinity of the end face on the side close to 13, and the necessary fitting is achieved by making the groove 8e triangular. It is possible to obtain the depth.
[0036]
The groove 8e and the protrusion 13h are fitted in the process of screwing the cartridge joint 8a into the pressure-resistant case 8b when the cartridge 8 is assembled. The groove 8e is fitted so as to slide into the projection 13h of the top partition plate 13 that has been incorporated in the case 8b in advance. After the fitting, the cartridge joint 8a and the top partition plate 13 are synchronized. The spiral screw 8d is provided with a screw start end and a terminal end, and the screwing is completed when the screw reaches a position where the start end and the terminal end coincide with each other.
[0037]
The cartridge joint 8a serves to seal the components inside the pressure-resistant case 8b by fitting with the pressure-resistant case 8b and the helical screw 8d. Another role of the spiral screw 8d is that the filtration cartridge 8 can be disassembled. Although the cartridge is replaceable, it is possible to regenerate the cartridge and recycle the resin by disassembling the cartridge that has reached the end of its life.
[0038]
【The invention's effect】
As is clear from the above description, the present invention is a water purifier having a configuration in which a filtration cartridge is connected to and coupled to a water purifier main body, and a cylindrical cartridge on the filtration cartridge side is connected to a coupling joint on the water purifier main body side. At the same time as screwing the cartridge joint into a pressure-resistant case equipped with a top surface partition plate, the groove is formed on the rear end surface of the cylindrical cartridge joint in the filtration cartridge, and a projection is provided on the top surface partition plate. Since the internal components of the filtration cartridge are integrated by fitting the protrusions and grooves, it is possible to eliminate internal sliding noise in the connection and connection of the filtration cartridge. It has the effect of not causing discomfort.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a water purifier according to a first embodiment of the present invention. FIG. 2 is a detailed perspective view of a filtration cartridge portion of the water purifier. FIG. 3 is a conventional and a water purifier according to a first embodiment of the present invention. [Fig. 4] Cross-sectional view of a conventional water purifier [Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Water faucet 2 Fixing nut 3 Operation lever 4 for switching water discharge Spout cap 5 Water purifier discharge part 6 Water purifier lower case 7 Water purifier upper case 8 Filtration cartridge 8a Cartridge joint 8b Pressure-resistant case 8c Spiral female thread 8d Spiral male thread 8e Groove 8f Head 9 Joint pipe 10 Switching device case 11 Connection pipe 12 Connection joint 12a Outer pipe path 12b Inner pipe path 12c Primary side water path 12d Secondary side water path 12e Spiral male screw 13 Top face partition plate 13a Outlet joint hole 13b Water inlet 13c Filter 13d Reinforcing rib 13e Pin 13f Small chamber 13g Space 13h Projection 13j Chamfer 14 Felt 15 Granular activated carbon 16 Bottom partition plate 16a Filter 16b Space 17 Hollow fiber membrane part 17a Hollow fiber membrane case 17b Hollow fiber membrane 18 Powdered activated carbon 19 Loosening prevention Screw 20 O-ring

Claims (3)

A water purifier having a configuration in which a filtration cartridge is connected to and coupled to the water purifier main body, and a cylindrical cartridge joint on the filtration cartridge side is screwed into a coupling joint on the water purifier main body side, and the cylinder in the filtration cartridge Forming a groove with a triangular cross section at the corner of the rear end of the cartridge joint, and providing a rectangular parallelepiped protrusion with a chamfered end on the top partition plate that divides the space for storing the filter medium, etc. A water purifier, wherein the cartridge coupling is screwed into a pressure-resistant case equipped with a plate, and the end portion of the protrusion is chamfered and the groove is fitted to integrate the internal components of the filtration cartridge. The water purifier according to claim 1 , wherein the groove is provided at a plurality of locations on the rear end portion of the cylindrical cartridge joint, and a plurality of protrusions that are fitted to the groove are also provided. Raw water straight water discharge flow path directly spouted supplied raw water, characterized by comprising raw water shower water discharge passage to the water discharge in the shower, and the water switch for selectively connecting to one of the purified water passage claim 1 Or the water purifier of 2 description .

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