JP4501284B2 - Faucet direct water purifier - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention comprises a cartridge having a filter medium for filtering impurities in tap water and a changeover switch capable of switching to purified water for discharging filtered water or raw water for discharging tap water as it is through a water passage. This is related to the faucet directly connected water purifier.
[0002]
[Prior art]
In recent years, with the deterioration of tap water quality, consumers' interest in drinking water has increased, and faucet-directly connected water purifiers that purify tap water have become widespread. In addition, the direct connection type water purifier, the stationary type water purifier, and the water conditioner changeover switch that are directly connected to the faucet are desired to be small and light so as not to interfere with kitchen work. The faucet direct-coupled water purifier described below as a prior art has a configuration in which a changeover switch that switches a water passage according to a use and a cartridge that stores a filter medium for filtering tap water are connected. By switching the lever, tap water can be guided to the cartridge and filtered to discharge as purified water, or tap water can be selected as straight water discharged straight as it is or raw water shower discharged as a shower It is.
[0003]
A conventional faucet direct connection type water purifier will be described. FIG. 10 is an external view of a conventional faucet direct-coupled water purifier, and FIG. 11 is a top view and a cross-sectional view of a water supply port of the conventional faucet directly-coupled water purifier. In FIG. 9, 1 is a faucet, 2 is a joint for connecting the faucet 1 and the water purifier, and 3 is a nut for fixing the water purifier and the joint 2. Reference numeral 4 denotes an upper cover of the water purifier, 5 denotes a lower cover of the water purifier, and 6 denotes a cartridge in which a filter medium for filtering tap water is built in and removable from the main body. A raw water straight outlet 7 and a raw water shower outlet 8 for discharging tap water as they are are provided, and a purified water outlet 9 for discharging tap water by filtering it with a cartridge 6 is provided. Reference numeral 10 denotes a switching lever that is connected to a switching switch for switching the water passage and switches from the outside to the raw water straight, the raw water shower, and the purified water according to the use. Here, the flow of water will be briefly described. When the switching lever 10 is in the position for discharging the raw water straight, it flows from A to F, and when it is in the position for discharging the raw water shower, it flows from A to G. When it is in the position where water is discharged, A → B → C → D → E flows.
[0004]
The flow until the purified water is discharged will be described. In FIG. 11, 11 is a changeover switch housing, and 12 is a connecting pipe connecting the changeover switch housing 11 and a cartridge 6 containing a filter medium. Inside the cartridge 6, a first partition plate 15 in which a filter is inserted in order with respect to the water flow direction, a nonwoven fabric 21, an activated carbon layer 13, and a second partition plate 16 in which the filter is inserted are configured on the outer peripheral side. The hollow fiber membrane 14 is disposed on the inner peripheral side. A flow rate checker 17 for notifying the clogging of the hollow fiber membrane 14 to the outside is provided on the secondary side of the cartridge 6. The flow rate checker 17 includes a pressure receiving body 18 that receives the discharge pressure of the purified water discharged from the cartridge 6 and a spring 19 that urges the pressure receiving body 18 from the opposite side to the water flow direction. In order to confirm from the outside, it is covered with a transparent casing 20.
[0005]
When the switching lever 10 is in a position for discharging purified water, the passage of the water is switched to the purified water side by the changeover switch housing 11 and flows into the cartridge 6 through the connecting pipe 12. Then, the first partition plate 15, the nonwoven fabric 21, the activated carbon layer 13, and the second partition plate 16 that are provided on the outer peripheral side of the cartridge 6 are sequentially passed through, where impurities, free residual chlorine, and the like are removed. The purified water, which is reversed at the end of the gas and flows into the hollow fiber membrane 14 and from which fine turbidity, general bacteria, and the like are removed, is discharged from the purified water discharge port 9 after the flow rate is confirmed by the flow rate checker 17.
[0006]
Here, the connection between the main body portion including the changeover switch housing 11 for switching the water passage and the cartridge portion including the filter medium is detachably connected because the connecting pipe 12 and the cartridge 6 are provided with screw structures.
[0007]
[Problems to be solved by the invention]
In a conventional faucet direct-coupled water purifier, the connection between the main body portion incorporating the changeover switch housing 11 for switching the water passage and the cartridge portion incorporating the filter medium is provided with a screw structure in the connecting pipe 12 and the cartridge 6, and the cartridge portion is rotated. It was connected to the main body. There was a problem in assembling because it required several rotations for attachment and detachment. Further, the connecting pipe 12 is provided with an O-ring for preventing external leakage. Since it takes time until the next cartridge replacement, the O-ring is fixed, which causes a problem that the cartridge is hard to attach and detach.
[0008]
Therefore, the present invention solves the above-mentioned conventional problems, and an object of the present invention is to provide a faucet direct-coupled water purifier that is excellent in assembling at the time of attachment / detachment by adopting a new connection structure.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, the faucet direct-coupled water purifier of the present invention is composed of a changeover switch for switching a water passage, a main body composed of upper and lower covers, and a cartridge containing a filter medium for filtering tap water. A coupling structure in a water purifier, wherein the cartridge has concentric shapes with respect to the central axis of the shaft seal portion and a claw having a shape different from the central axis symmetrical position at a position orthogonal to the insertion direction of the shaft seal portion. In addition, two arc ribs are provided at positions orthogonal to the claw, and the main body side has the shaft seal O-ring. The hole into which the claw is fitted and the central axis of the shaft seal portion Two arc ribs are provided at positions that are concentric with each other and perpendicular to the hole, and the cartridge is attached to and detached from the main body by fitting the claw, the hole, and the arc rib. And butterflies. According to the present invention, it is not necessary to perform a rotating operation when connecting the cartridge to the main body, and since there is no sticking of an O-ring or the like, the assembly is easy and the faucet directly connected water purifier can be easily attached and detached. Can be provided.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Invention of Claim 1 is a connection structure in the water purifier comprised by the main body comprised by the changeover switch and upper and lower covers which switch a water passage, and the cartridge which accommodated the filter medium for filtering tap water, The cartridge includes a claw having a shape different from the central axis symmetrical position at a position orthogonal to the insertion direction of the shaft seal portion, and a position concentric to the center axis of the shaft seal portion and perpendicular to the claw. Two circular arc ribs are provided, and the main body has an O-ring for shaft seal. It is concentric with the hole into which the claw fits and the central axis of the shaft seal part, and at a position perpendicular to the hole. Two arc ribs are provided, and the claw and the hole are fitted, and the inner circumferential surface of the arc rib provided on the cartridge side and the outer circumferential surface of the arc rib provided on the main body side are fitted. After, said Cartri And di is rotated 90 degrees around the central axis, the arc rib provided on the cartridge side was possible to attach and detach the cartridge body by saddled arc rib provided on the body side. According to this configuration, it is not necessary to perform an operation such as rotation when the cartridge is attached to or detached from the main body, and since the O-ring or the like is not fixed, the assemblability is good and the cartridge can be easily attached and detached.
[0012]
According to the second aspect of the present invention, the claw is provided with a locking rib. According to this configuration, the cartridge is not easily detached from the main body by fitting the rib into the groove provided in the main body.
[0013]
According to the third aspect of the present invention, the gap between the claw and the receiving surface is made smaller as the cartridge is rotated on the receiving surface of the upper and lower covers constituting the main body that contacts the locking rib provided on the claw. An inclined surface. According to this configuration, no force is required from the beginning of rotating the cartridge, and the cartridge is easily tightened because it is gradually tightened.
[0014]
The invention described in claim 4 has a structure in which the main body and the cartridge are connected by inserting a lock rib provided on the claw elastically onto the main body receiving surface. According to this configuration, when the cartridge is to be removed, a force sufficient to ride on the receiving surface of the main body is required. Therefore, even if an unexpected force is applied in the direction in which the cartridge is removed, the cartridge cannot be removed.
[0015]
According to the fifth aspect of the present invention, the upper and lower covers constituting the main body are provided with grooves into which the locking ribs provided on the claws are fitted when the cartridge is rotated and fixed. According to this configuration, since the locking rib provided on the claw of the cartridge is fitted in this groove, the cartridge is difficult to be detached from the main body.
[0016]
According to a sixth aspect of the present invention, the cartridge has a shape in which the tip of the connecting portion fitted into the main body is narrowed. According to this structure, when fitting with a main body, since the front-end | tip of a connection part is thin, it becomes easy to insert in a counterpart.
[0017]
According to the seventh aspect of the present invention, when the cartridge is fixed, the cartridge main body and the claws provided on the cartridge sandwich the upper and lower covers constituting the main body. In the assembled state, since the claw provided on the cartridge is securely fitted into the main body, the cartridge does not come off in the insertion direction.
[0018]
In the invention according to claim 8 , the two holes formed in accordance with the claw shapes provided in the upper and lower covers constituting the main body have different shapes. According to this configuration, the cartridge is prevented from being reversely inserted, and is not erroneously attached.
[0019]
【Example】
Hereinafter, an embodiment of the faucet direct-coupled water purifier of the present invention will be described in detail with reference to the drawings.
[0020]
FIG. 1 is an external view of a faucet directly connected water purifier according to an embodiment of the present invention, FIG. 2A is a cross-sectional view of a faucet directly connected water purifier according to an embodiment of the present invention, and FIG. Fig. 3 is a longitudinal sectional view of a faucet direct-coupled water purifier according to an embodiment of the present invention. Fig. 3 is a view of a main body connecting portion before mounting a cartridge of the faucet directly-coupled water purifier according to an embodiment of the present invention. Is a top view of the cartridge of the faucet directly connected water purifier in one embodiment of the present invention, FIG. 4B is a side view of the cartridge of the faucet directly connected water purifier in one embodiment of the present invention, FIG. ) Is a rear view of the upper cover constituting the faucet direct-coupled water purifier body in one embodiment of the present invention, and FIG. 5B is a lower cover constituting the faucet directly-coupled water purifier body in one embodiment of the present invention. FIG. 6 is a faucet direct connection type according to an embodiment of the present invention. An inclined surface (C portion in FIGS. 5 and 6), a receiving surface, and a perspective view of a groove, FIG. 7 is a perspective view of a main body connecting portion when a cartridge is attached to a faucet-directly connected water purifier in one embodiment of the present invention Fig. 8 (cartridge claw and arc rib come to the position of slanted line), Fig. 8 is a deformation diagram of the claw when the cartridge claw is attached by the elasticity of the claw when the main body is connected, and Fig. 9 is a direct connection of the faucet in one embodiment of the present invention The figure of a main-body connection part at the time of completion of cartridge attachment of a type water purifier (a cartridge nail and an arc rib come to the position of an oblique line). In addition, in embodiment shown below, the member corresponding to the water purifier demonstrated with the prior art was attached | subjected the same code | symbol.
[0021]
In FIG. 1, 1 is a faucet, 2 is a joint, 3 is a nut, 4 is an upper cover, 5 is a lower cover, 6 is a cartridge, 9 is a purified water discharge port, 33 is a raw water discharge port, and 10 is a switching lever. The raw water discharge port 33 may not be integrally formed with the lower cover 5. When the switching lever 10 is in the raw water mode, water flows from A to F, and when it is in the purified water mode, it flows from A to B, C, D, and E. The description of the faucet direct-coupled water purifier in one embodiment of the present invention is two modes of purified water and raw water, but a plurality of modes may be used.
[0022]
The flow until the purified water is discharged will be described. In FIG. 2A, reference numeral 11 denotes a changeover switch housing, and 27 denotes a cartridge connecting portion that connects the changeover switch housing 11 and a cartridge 6 containing a filter medium. Reference numeral 34 denotes an O-ring attached to the changeover switch housing 11, which seals a connection portion when the cartridge is rotationally attached with the cartridge insertion direction as an axis. Inside the cartridge 6, the nonwoven fabric 21, the first partition plate 15, the activated carbon layer 13, the nonwoven fabric 21, and the second partition plate 16 are configured on the outer peripheral side in order with respect to the direction of water flow. A hollow fiber membrane 14 is disposed. A flow rate checker 17 for notifying the clogging of the hollow fiber membrane 14 to the outside is provided on the secondary side of the cartridge 6. The flow rate checker 17 includes a pressure receiving body 18 that receives the discharge pressure of the purified water discharged from the cartridge 6 and a spring 19 that urges the pressure receiving body 18 from the opposite side to the water flow direction. In order to confirm from the outside, it is covered with a transparent casing 20.
[0023]
When the switching lever 10 is in a position to discharge purified water, the passage is switched to the purified water side by the changeover switch housing 11 and flows into the cartridge 6 through the cartridge connecting portion. Then, the first partition plate 15, the nonwoven fabric 21, the activated carbon layer 13, and the second partition plate 16 that are provided on the outer peripheral side of the cartridge 6 are sequentially passed through, where impurities, free residual chlorine, and the like are removed. The purified water, which is reversed at the end of the gas and flows into the hollow fiber membrane 14 and from which fine turbidity, general bacteria, and the like are removed, is discharged from the purified water discharge port 9 after the flow rate is confirmed by the flow rate checker 17.
[0024]
Next, the connection between the faucet direct-coupled water purifier body and the cartridge will be described in detail. 2 (b), FIG. 3, FIG. 4 (a), (b), FIG. 5 (a), (b), FIG. 6, FIG. 7, and FIG. Claws of different shapes provided in the vertically symmetrical position, 23 is an arc rib provided at a position of 90 degrees with respect to the claw 22, and 24 is in a position symmetrical to the main body insertion axis and in the shape of the claw 22 of the cartridge 6. A groove-like hole 25 provided together is an arc rib provided on the main body side. Reference numeral 26 denotes a protrusion provided in at least one of the grooves provided in the main body to prevent reverse insertion of the cartridge. When the cartridge is inserted, the claw 22 of the cartridge is aligned with the groove-shaped hole 24 of the main body. At this time, the claw 22 of the cartridge 6 comes to the position of the hatched portion a shown in FIG. 7, and the arc rib 23 of the cartridge 6 comes to the position of the hatched portion b shown in FIG. When the cartridge 6 is inserted into the main body, the diameter of the A portion of the connecting portion 27 of the cartridge 6 is smaller than the diameter of the B portion (see FIG. 4), so that the cartridge 6 can be easily inserted. Then, after inserting until it hits the changeover switch housing 11, it is rotated 90 degrees in the normal direction. At this time, the stopper 6 is provided on the upper and lower covers so that the cartridge 6 does not rotate in the direction opposite to the normal direction.
[0025]
Then, as the cartridge 6 is inserted and rotated in the normal direction, the rib 29 provided on the claw 22 of the cartridge 6 comes into contact with the inclined surface 30 of the upper and lower covers and then rides on the receiving surface 31 of the upper and lower covers (the claw 22 And the rib 29 provided on the claw 22 of the cartridge 6 is finally fitted into the groove 32 of the upper and lower covers. Further, after the connection is completed, the stopper 28 of the upper and lower covers prevents the cartridge 6 from further rotating.
[0026]
On the other hand, the arc rib 23 provided on the cartridge 6 rotates in the direction of the arrow (see FIG. 7) from when the cartridge 6 is set in the main body, and is in the position shown in FIG. At this time, since the arc ribs 23 of the cartridge 6 hold both ends of the arc ribs 25 of the main body in the vertical direction, the upper and lower covers can be removed even if a force is applied to open the upper and lower covers in the vertical direction. Is gone. Further, the claw 22 provided in the cartridge 6 is in a position (left and right direction) where the groove-like hole 24 on the main body side is present when the cartridge 6 is inserted, but the claw 22 when the connection is completed by rotating the cartridge. The position is the position in the vertical direction (FIG. 2B), and the cartridge 6 and the claw 22 are in a positional relationship sandwiching the upper and lower covers, so the cartridge 6 does not come out in the insertion axis direction.
[0027]
Here, the shape of the claw 22 provided in the cartridge 6 is not limited to the shape of the present embodiment, and may be another shape such as a sector shape. Moreover, the positional relationship of the nail | claw 22 should just be provided in one or more places even if it is not a symmetrical position.
[0028]
The protrusion 26 of the groove-like hole 24 on the main body side prevents the cartridge 6 from being inserted in the reverse direction. However, the present invention is not limited to this. For example, the width of the claw 22 provided on the cartridge 6 may be different, It may be possible to prevent reverse insertion by varying the thickness. Further, the ribs 29 provided on the claws 22 of the cartridge 6 are provided on the two claws 22, but may be provided on at least one of them. Further, the positional relationship between the claw 22 and the arc rib 23 of the cartridge 6 is provided symmetrically in the vertical direction, but the position relationship between the claw 22 and the arc rib 23 is shifted by 90 degrees (the claw and the arc rib are switched). May be a position). In this case, the main body side may be provided with groove-like holes 24 and arc ribs 25 in accordance with the claws 22 and arc ribs 23 of the cartridge 6. The angle of the inclined surface 30 of the upper and lower covers with which the rib 29 provided on the claw 22 of the cartridge 6 contacts is not particularly limited, but if the angle is steep, it becomes hard when the cartridge 6 is mounted, so that the angle is as gentle as possible. Is desirable. In the present embodiment, the connection method between the main body and the cartridge 6 is described using the elastic deformation of the claw 22 provided in the cartridge. However, a connection method by elastic deformation of the main body side connection portion may be used.
[0029]
【The invention's effect】
A connection structure in a water purifier composed of a main body composed of a changeover switch for switching a water passage and upper and lower covers, and a cartridge containing a filter medium for filtering tap water, wherein the cartridge includes a shaft seal portion Claws having different shapes at the center axis symmetrical position at a position orthogonal to the insertion direction of the shaft, and two circular arc ribs at positions concentrically with respect to the center axis of the shaft seal portion and orthogonal to the claw The shaft seal O-ring is provided on the main body side, and a circular arc is formed concentrically with the hole into which the claw is fitted and the central axis of the shaft seal portion and perpendicular to the hole. After two ribs are provided, the claw and the hole are fitted, and the inner circumferential surface of the arc rib provided on the cartridge side and the outer circumferential surface of the arc rib provided on the main body side are fitted The above The cartridges is rotated by 90 degrees around the central axis, and wherein the linking said cartridge to said main body by an arc rib provided on the cartridge side is saddled the arc rib provided on the main body side . According to the present invention, when the cartridge is mounted and fixed, the upper and lower covers are prevented by providing the arc rib that holds the arc rib formed on the main body at a position orthogonal to the claw. Since the holding upper and lower covers are prevented from coming off, the cartridge can be reliably connected to the main body. This eliminates the need for several rotations and other operations when the cartridge is attached to or detached from the main body, and since there is no need for an O-ring, there is no sticking and the faucet directly connected water purifier can be easily attached and detached. Can be provided.
[Brief description of the drawings]
FIG. 1 is an external view of a faucet-directly connected water purifier according to an embodiment of the present invention. FIG. 2 (a) is a cross-sectional view of a faucet-directly connected water purifier according to an embodiment of the present invention. Fig. 3 is a longitudinal sectional view of a faucet-directly connected water purifier according to an embodiment. Fig. 3 is a view of a main body connecting portion before mounting a cartridge of a faucet directly-connected water purifier according to an embodiment of the present invention. (B) Cartridge side view of a faucet-directly connected water purifier according to an embodiment of the present invention FIG. 5 (a) Embodiment of the present invention FIG. 6 is a rear view of the lower cover constituting the main body of the faucet-directly connected water purifier in one embodiment of the present invention. Inclination of the upper and lower covers of the faucet direct connection type water purifier in the embodiment Fig. 7 is a perspective view of a surface, a receiving surface, and a groove. Fig. 7 is a diagram of a main body connection portion when a cartridge is attached to a faucet direct-coupled water purifier according to an embodiment of the present invention. Fig. 9 is a diagram of the main body connecting portion when the cartridge installation of the faucet direct connection type water purifier in the embodiment of the present invention is completed. Fig. 10 is an external view of a conventional faucet direct connection type water purifier. FIG. 11 is a top view and a cross-sectional view of a conventional faucet direct-coupled water purifier.
1 faucet 2 joint 3 nut 4 upper cover 5 lower cover 6 cartridge 7 raw water straight outlet 8 raw water shower outlet 9 purified water outlet 10 selector lever 11 selector switch housing 12 connecting pipe 13 activated carbon layer 14 hollow fiber membrane 15 first partition Plate 16 Second partition plate 17 Flow rate checker 18 Pressure receiver 19 Spring
20 Transparent casing 21 Non-woven fabric 22 Claw 23 Cartridge side arc rib 24 Groove hole 25 Main body side arc rib 26 Protrusion 27 Cartridge connection portion 28 Stopper 29 Rib 30 Inclined surface 31 Receiving surface 32 Groove 33 Raw water discharge port 34 O-ring

Claims (8)

A connection structure in a water purifier composed of a main body composed of a changeover switch for switching a water passage and upper and lower covers, and a cartridge containing a filter medium for filtering tap water, wherein the cartridge includes a shaft seal portion Claws having different shapes at the center axis symmetrical position at a position orthogonal to the insertion direction of the shaft, and two circular arc ribs at positions concentrically with respect to the center axis of the shaft seal portion and orthogonal to the claw The shaft seal O-ring is provided on the main body side, and a circular arc is formed concentrically with the hole into which the claw is fitted and the central axis of the shaft seal portion and perpendicular to the hole. After two ribs are provided, the claw and the hole are fitted, and the inner circumferential surface of the arc rib provided on the cartridge side and the outer circumferential surface of the arc rib provided on the main body side are fitted The above The cartridges is rotated by 90 degrees around the central axis, and wherein the linking said cartridge to said main body by an arc rib provided on the cartridge side is saddled the arc rib provided on the main body side Faucet-direct water purifier. The faucet-directly connected water purifier according to claim 1, wherein the claw is provided with a locking rib . The receiving surface of the upper and lower covers constituting the main body that the locking rib provided on the claw contacts is inclined so that the gap between the claw and the receiving surface becomes smaller as the cartridge rotates. The faucet-directly connected water purifier according to claim 2 , The faucet direct-coupled water purifier according to any one of claims 1 to 3, wherein the main body and the cartridge are connected by elastically running a locking rib provided on the claw on the main body receiving surface . . The faucet according to any one of claims 1 to 4 , wherein the upper and lower covers constituting the main body are provided with grooves into which locking ribs provided on the claws are fitted when the cartridge is rotationally fixed. Directly connected water purifier. The faucet direct-coupled water purifier according to any one of claims 1 to 5, wherein the cartridge has a connecting portion inserted into the main body with a thin tip . The said cartridge main body and the said nail | claw provided in the cartridge have pinched | interposed the upper-and-lower cover which comprises the said main-body part when the said cartridge is fixed . Faucet-direct water purifier. The faucet direct connection type water purifier according to any one of claims 1 to 7 , wherein the two holes formed in the claw shape provided in the upper and lower covers constituting the main body have different shapes . .

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