JP3032805U - Water tap for under sink type water purifier - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To obtain a faucet for an under-sink type water purifier having a novel configuration that can clean not only purified water but also a cleaning cartridge. SOLUTION: One fixed disk 1 provided in the faucet body with a switching mechanism for switching among three states of water purification, backwashing, and water stoppage by operating one switching lever 17 respectively.
8 and one movable disk 19.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 This invention has a purification cartridge filled with a filter for removing microorganisms such as bacteria and mold that cause turbidity, substances such as red rust and mud, and activated carbon for removing residual chlorine. It relates to the faucet of an undersink type water purifier installed in a domestic sink.

[0002]

[Problems to be solved by the invention]

 The idea is to purify the raw water that has passed through the under-sink water purifier by discharging the purified water and purify the cleaning cartridge by washing the raw water from the opposite direction to the raw water. The backwashing function that discharges the impurities adhering to the cartridge for hot water with hot water, and the water blocking function that shuts off the flow path to the water purifier for both the raw water and the raw water can be easily switched by operating one switching lever. In addition to being able to perform purified water, it is also possible to obtain a faucet for an undersink type water purifier with a new configuration that is capable of cleaning not only purified water but also a cleaning cartridge.

[0003]

[Means for Solving the Problems]

 This device is equipped with a fixed mechanism and a movable mechanism in the faucet body, which has a switching mechanism for switching between three states of water purification, backwashing, and water stopping by operating one switching lever. A faucet of an under-sink type water purifier installed on a domestic sink, which is composed of a disc, wherein the fixed disc communicates with a first water passage communicating with a raw water extraction passage and a raw water extraction passage. In addition to having four water passage holes including a second water passage hole, the movable disk has a long groove at a central position on the lower surface, the long groove having a size capable of simultaneously communicating with the two water passage holes. When it is installed slidably with respect to the fixed disk and is in a purified water state, the raw water take-out flow path is blocked by the raw hot water take-out flow path blocking part on the lower surface of the movable disk, and the raw water is passed through the first water passage through the first water passage hole. Flowed into 3 water holes The movable disk is located so that the long groove covers the first and third water passage holes from the upper surface side, and the raw water that has been passed through the raw water inlet of the water purifier is purified and then purified through the outlet of the water purifier. While discharging water, in the reverse cleaning state, the raw water is flown from the second water passage hole to the fourth water passage hole in a state where the raw water take-out flow passage is blocked by the raw water take-out flow passage blocking portion on the lower surface of the movable disk. The movable disk is positioned so that the long groove covers the second and fourth water passage holes from the upper surface side for flowing, and the cleaning cartridge is washed with the raw water passed from the outlet to adhere to the cleaning cartridge. Impurities are discharged together with hot water through the raw water inlet, and when the movable disk is slid so that the long groove does not overlap the four water passage holes, the water stops and the raw water and the raw water flow. It is configured to shut off the flow path to the water purifier.

Further, from another point of view of the present invention, a switching mechanism is provided in the faucet body for switching between three states of water purification, backwashing, and water shutoff by operating one switching lever. A faucet for an undersink type water purifier provided in a domestic sink, which is composed of a hollow cylinder and a cylindrical movable valve that is rotatably fitted in the cylinder. The switching lever is fixed to a rotary shaft provided at one end of the movable valve, and a partition wall for partitioning the two chambers is formed in a central portion in the longitudinal direction inside the movable valve, and is close to the rotary shaft. The chamber on the side communicates with the outside through four water passages formed on the body wall of the movable valve, and one of the four water passages communicates with the faucet when in the backwash state. Functioning as the first internal discharge port, The chamber on the other side communicates with the outside through four water passages formed in the body wall of the movable valve, and one of the four water passages communicates with the faucet when the water is clean. While functioning as a second internal outlet, the hollow cylindrical body is fixedly arranged horizontally in the faucet body, and six water passage holes are formed in the body wall of the cylindrical body to provide a purified water state. And a water passage hole as an external outlet communicating with the second internal outlet of the movable valve, and a water outlet serving as an external outlet communicating with the first internal outlet of the movable valve when in a reverse cleaning state. , Three water holes that communicate with the three water holes of the movable valve when in the purified water state, and three water holes that respectively communicate with the three water holes of the movable valve when in the backwash state. Provided is a faucet for an undersink type water purifier characterized by having a water passage hole.

In this invention, when the switching lever is switched to the purified water state, only raw water can be passed to the under-sinking water purifier. In this case, the raw water that has passed through the raw water inlet is purified by a water purifier, and the purified water obtained is discharged from the faucet through the outlet.

When the switching lever is switched to the reverse cleaning state, the raw hot water flows through the purification passage in the opposite direction to the case of the raw water. In other words, the raw water is passed through the outlet of the water purifier, the purification cartridge is washed while flowing through the water purifier in the opposite direction to the case of the raw water, and hot water containing impurities is discharged from the faucet through the raw water inlet. To be done.

When the switching lever is switched to the water stop state, both the raw water and the raw water are stopped at the inflow portion of the faucet. That is, it is possible to block the passage of raw water and raw water to the water purifier, and avoid connecting the outside air and the water purifier through the faucet.

[0008]

[Embodiment of the invention]

 An embodiment of the present invention will be described below. However, this invention is not limited by it. 1 to 5 show one fixed disk and one fixed disk provided inside the faucet body with a switching mechanism that switches between three states: clean water, backwash, and water stop by operating one switching lever. 1 shows a first embodiment of the present invention composed of a single movable disk. 1 to 5, 1 is an under-sink type water purifier provided in a domestic sink or the like, which is a filter for removing bacteria such as bacteria and fungi that cause turbidity and substances such as red rust and mud. A cleaning cartridge (not shown) filled with activated carbon for removing residual chlorine and the like is replaceably housed. Reference numeral 2 denotes a hot and cold water mixing tap attached to a mounting base 3 such as a domestic sink, which is branched from a hot water supply passage 5 communicating with the hot water supply pipe 4 and a hot water supply passage 7 communicating with the hot water supply pipe 6, and branched water supply pipes 8 A raw water extraction flow path 9 and a raw hot water extraction flow path 11 of the branch hot water supply pipe 10 are provided. This hot and cold water mixing valve 2 is provided with a valve mechanism (not shown) provided in the hot and cold water mixing valve main body 2a for the water in the water channel 5 and the hot water in the hot channel 7 and a lever 12 having a flow rate adjusting and water discharging / stopping function. By the switching operation, the water is mixed at an appropriate ratio and the mixed water can be discharged from the hot water faucet 13. In FIGS. 1 and 4, 14a and 14b are water shutoff taps that open and close the water supply passage 5 and the raw water discharge passage 9, and 14c and 14b are water shutoffs that open and close the hot water supply passage 7 and the raw water discharge passage 11. It is a stopper.

Reference numeral 15 denotes a faucet for connecting the raw water take-out flow passage 9 and the raw hot water take-out flow passage 11 to the water purifier 1, which is interlocked with a switching operation of one switching lever 17 provided in the faucet body 16. One movable disk 19 slides in the direction indicated by arrow A with respect to one fixed disk 18 fixedly arranged in the faucet body 16, so that the raw water extraction flow passage 9 is connected to the raw water inlet 20 of the water purifier 1. From the water purifier 1 through the outlet 21 of the water purifier 1 to the purified water flow passage K formed between the water passage holes d (described later) of the fixed disk 18, and the raw hot water extraction flow passage 11 communicated with the purified water flow passage K. The back-washing state is switched to the back-washing state in which the raw water take-out flow passage 9 and the raw hot water take-out flow passage 11 are prevented from communicating with the purified water flow passage.

The fixed disc 18 has four water passage holes a, b, c, d, while the movable disc 19 has a size such that it can be communicated with two water passage holes at the central position of the lower surface at the same time. It has a long groove 23. The long groove 23 is slidably installed on the fixed disk 18 so that the longitudinal direction is parallel to the direction perpendicular to the sliding direction indicated by the arrow A, and the water passage hole (first water passage hole) a is taken out from the raw water. On the other hand, the water passage (second water passage) c communicates with the flow passage 9 (see FIG. 4).

When the raw water C is in the purified water state, the long groove 23 allows the raw water C to flow from the water passage hole (first water passage hole) a to the water passage hole (third water passage hole) b. The movable disk 19 is positioned so as to cover from the upper surface 18a side (see FIG. 5 (A)), and the raw water C that has passed through the water passage b reaches the raw water inlet 20 in the water purifier 1 through the raw water flow passage 22 and Purified water 30 purified by the vessel 1 passes from the outlet 21 through the purified water flow path K to the water passage hole d 1 of the fixed disk 18. The water passage d communicates with the purified water discharge passage 31 (see FIG. 4) branched from the faucet 29, and the purified water 30 is discharged from the faucet 29. The raw hot water discharge passage 11 communicating with the water passage c is blocked by the raw hot water discharge passage blocking portion S (see FIG. 3) of the lower surface 19a of the movable disk.

Further, in the backwashing state, the long groove 23 has the water passage holes c and d for flowing from the water passage H (second water passage hole) c to the water passage hole (fourth water passage hole) d. The movable disk 19 is positioned so as to cover the upper surface 18a from the upper surface 18a side (see FIG. 5B), and the raw hot water H that has passed through the water passage holes d flows through the purified water flow passage K toward the outlet 21 of the water purifier 1, The water enters the water purifier 1 from 21, and the purification cartridge is washed with the raw water H while flowing through the water purification passage K to the inlet 20. After that, the impurities adhering to the purification cartridge pass through the raw water flow path 22 together with the hot water to reach the water passage b of the fixed disk 18. The water passage b communicates with the other impurity water discharge passage 28 (see FIG. 4) branched from the faucet 29, and the hot water containing impurities is discharged from the faucet 29. The raw water withdrawal passage 9 communicating with the water passage a is blocked by the raw water withdrawal passage blocking portion P (see FIG. 3) of the lower surface 19a of the movable disk.

Further, when the movable disk 19 is slid so that the long groove 23 comes to a position where it does not overlap the four water passage holes a, b, c, d, a water stop state is obtained [see FIG. 5 (C)]. .

As described above, the handle 17a is switched between the upper, middle, and lower positions of the three states of purified water, backwash, and still water, by operating one switching lever 17 as described above. For example, in FIG. 2 showing the backwashing state, the handle 17a is switched to the lower position. In FIG. 2, reference numeral 35 denotes a valve rod, which has a recess 37 formed at the center of a lower surface 36a of a slide body 36 fixed to the lower end of the valve rod 35, and a protrusion provided at a central portion of an upper surface 19b of the movable disk 19. The engagement of 39 causes the valve rod 35 to rotate in response to the switching operation of the switching lever 17, and the movable disk 19 slides in the sliding direction (direction A) by the sliding of the slide body 36.

When the switching lever 17 is switched to the purified water state, only the raw water C can be passed to the water purifier 1. In this case, the raw water C that has passed through the inlet 20 is purified by the water purifier 1, and the purified water obtained is discharged from the faucet 29 through the outlet 21.

When the switching lever 17 is switched to the reverse cleaning state, the raw water H flows through the purification passage K in the direction opposite to the case of the raw water C. In other words, the raw water H is passed through the outlet 21, and the purification cartridge is washed while flowing through the water purifier 1 in the opposite direction to the case of the raw water C, and hot water containing impurities is passed through the inlet 20 and out of the faucet 29. Spit water.

When the switching lever 17 is switched to the water-stopped state, both the raw water C and the raw hot water H are stopped at the inflow portion of the faucet. That is, the passage of the raw water C and the raw hot water H to the water purifier 1 is blocked, and it is possible to avoid the connection between the outside air and the water purifier 1 through the faucet.

FIGS. 6 to 11 show a single hollow structure in which a switching mechanism is provided in the faucet body for switching among three states of water purification, backwashing, and water stoppage by operating one switching lever. 2 shows a second embodiment of the present invention, which is composed of a cylindrical body and a movable valve that is rotatably fitted in the cylindrical body. 6 to 11, a switching lever 40 is fixed to a rotary shaft 41a provided at one end of a cylindrical movable valve 41. The movable valve 41 is rotatably loosely fitted in the hollow cylindrical body 53. A partition wall 44 for partitioning the two chambers 42, 43 is formed in the movable valve 41 at the center in the longitudinal direction. The chamber 42 on the side closer to the rotating shaft 41a communicates with the outside through four water passage holes 45, 46, 47, 48 formed in the body wall of the movable valve 41. Further, the chamber 43 on the side far from the rotating shaft 41a communicates with the outside through four water passage holes 49, 50, 51, 52 formed in the body wall of the movable valve 41.

The three water passage holes 45, 46, 49 are arranged so as to be aligned in a line in the longitudinal direction (hereinafter, referred to as A row), and similarly, the three water passage holes 47, 50, 51 (hereinafter, B row). (Also called rows) are also arranged in a line in the longitudinal direction. Moreover, the water passage holes 45, 46, 49 of the row A are located on the side closer to the rotating shaft 41a, and the water passage holes 47, 50, 51 of the row B are located on the side farther from the rotating shaft 41a. The water passage hole 52 functions as an internal outlet communicating with the faucet 29 in the purified water state (see FIG. 7). Further, the water passage hole 48 functions as an internal discharge port that communicates with the faucet 29 in the reverse cleaning state (see FIG. 7).

On the other hand, the hollow cylindrical body 53 is fixedly arranged in the water faucet body 16 in a horizontally placed state. Six water passage holes 52, 55, 56, 57, 58 and 59 are formed on the body wall of the cylindrical body 53. That is, in the purified water state, it communicates with the water passage hole 54 of the movable valve 41 (see FIG. 7) that communicates with the water passage hole 52 of the movable valve 41, and with the water passage hole 48 of the movable valve 41 in the backwash state. A water passage hole 55 serving as an external outlet, and water passage holes 56, 57 and 58 (hereinafter, referred to as row C), which communicate with the water passage holes 45, 46 and 49 of the A row of the movable valve 41 when in a purified state. In the reverse cleaning state, the movable valve 41 has water passage holes 57, 58 and 59 (hereinafter referred to as row D) which communicate with the water passage holes 47, 50 and 51 of the row B, respectively.

An O-ring m is formed on the outer portion of the body wall in the eight water passage holes 45, 46, 47, 48, 49, 50, 51, 52 formed in the movable valve 41. This is to ensure that the water passage holes in the A and B rows and the water passage holes in the C and D rows of the tubular body 53 communicate with each other to prevent water leakage or hot water leakage. O-rings n for stopping water are also formed on the outside of the barrel wall of the movable valve 41 and on the outside of the barrel wall of the tubular body 53.

When the switching lever 40 is switched to the purified water state, as shown in FIGS. 7 and 9, the water passage hole 56 of the tubular body 53 and the water passage of the movable valve 41, which communicate with the raw water withdrawal flow passage 9, are obtained. Raw water C enters the chamber 42 through the hole 45. Then, raw water can be passed from the raw water flow path 22 to the water purifier 1 through the water passage hole 46 of the movable valve 41 and the water passage hole 57 of the cylindrical body 53. In this case, the raw water that has passed through the inlet 20 is purified by the water purifier 1, and the purified water obtained passes through the outlet 21 and from the purification channel K through the water passage 58 and the water passage 49 that communicates therewith. Purified water enters the chamber 43. Subsequently, the purified water reaches the faucet 29 from the purified water discharge passage 31 and is discharged through the water passage 52 and the water passage 54 communicating with the water passage 52. The raw hot water withdrawal passage 11 communicating with the water passage hole 59 of the tubular body 53 is blocked by the body of the movable valve 41.

When the switching lever 41 is switched to the reverse cleaning state, the raw water H flows in the purification channel K in the direction opposite to that of the case of the raw water C, as shown in FIGS. That is, the raw hot water H enters the chamber 43 from the raw hot water take-out passage 11 through the water passage holes 59 and 51, flows through the purification passage K through the water passage holes 50 and 58 toward the outlet 21, and the purified water is obtained. Reach vessel 1. Then, the purifying cartridge is washed while flowing through the water purifier 1 in the direction opposite to the case of the raw water C, and hot water containing impurities flows through the inlet 20 in the raw water flow path 22 in the reverse direction, and the water passage holes 57, Enter the chamber 42 via 47. Subsequently, hot water containing impurities is discharged from the impurity water discharge passage 28 to the faucet 29 through the water holes 48 and the water holes 55 communicating with the water holes 48. The raw water extraction flow passage 9 communicating with the water passage hole 56 of the tubular body 53 is blocked by the body of the movable valve 41.

Further, as shown in FIG. 11, when the switching lever 41 is switched to the water stop state, both the raw water C and the raw hot water H are stopped at the inflow portion of the faucet. That is, it is possible to prevent the raw water C and the hot water H from flowing to the water purifier 1 and prevent the outside air from being connected to the water purifier 1 through the faucet.

[0025]

[Effect of the invention]

 As explained above, a switching mechanism that switches between three states of water purification, backwashing, and water stoppage by operating one switching lever is provided in the faucet body, one fixed disk and one Since it is composed of a movable disk or a hollow cylinder provided inside the faucet body and a cylindrical movable valve that is rotatably fitted in the cylinder, the under-sink type purified water The water purification function that purifies the raw water that has been passed through the vessel and discharges the purified water, and the raw water that has been passed from the opposite direction to the raw water is used to wash the purification cartridge and attach it to the purification cartridge. It is possible to easily switch between the backwash function that discharges impurities with hot water and the water stop function that shuts off the flow path to the water purifier for both the raw water and the raw water by operating a single switching lever. Purification cartridge Cleaning is also done, it can contribute to the maintenance of the purification cartridge.

[Brief description of the drawings]

FIG. 1 is an overall perspective view showing a first embodiment of the present invention.

FIG. 2 is an explanatory diagram of a main part configuration in the embodiment.

FIG. 3 is an exploded perspective view of a main part in the embodiment.

FIG. 4 is a diagram for explaining an overall operation in the embodiment.

FIG. 5 is a diagram for explaining an operation of a main part in the above embodiment.

FIG. 6 is a diagram for explaining the overall operation of the second embodiment of the present invention.

FIG. 7 is a diagram for explaining an operation at the time of water purification in the second embodiment.

FIG. 8 is a diagram for explaining an operation at the time of back washing in the second embodiment.

FIG. 9 is a view of a hollow cylindrical body in which a movable valve is loosely fitted so as to be rotatable as viewed from four water passage holes, in order to explain an operation at the time of water purification in the second embodiment.

FIG. 10 is a view of a hollow cylindrical body in which a movable valve is loosely fitted so as to be rotatable as viewed from four water passage holes in order to explain an operation at the time of back washing in the second embodiment. .

FIG. 11 is a view of a hollow cylindrical body in which a movable valve is loosely fitted so as to be rotatable as viewed from four water passage holes in order to explain an operation at the time of water stoppage in the second embodiment. .

[Explanation of symbols]

1 ... Under sink type water purifier, 9 ... Flow path for taking out raw water,
11: raw water removal flow path, 17: switching lever, 18 ...
Fixed disk, 19: movable disk, 20: raw water inlet,
22 ... Raw water flow passage, 23 ... Long groove, a ... First water passage hole, c ... Second water passage hole, b ... Third water passage hole, d ... Fourth water passage hole, S ... , P ... Raw water extraction passage blocking part, C ... Raw water, H ... Raw hot water.

Claims (2)

[Utility model registration claims] 1. Water purification by operating one switching lever,
An undersink provided in a sink for household use, which is composed of one fixed disk and one movable disk provided inside the faucet body and has a switching mechanism for switching between three states of backwashing and water stoppage. A water faucet of a type water purifier, wherein the fixed disk has four water passage holes including a first water passage hole communicating with the raw water withdrawal passage and a second water passage hole communicating with the raw water withdrawal passage. The movable disc has a long groove at a central position on the lower surface, the long groove having a size capable of communicating with the two water passages at the same time. The long groove is slidably installed on the fixed disc, and when the water is purified, the raw water is removed. In the state where the take-out flow path is blocked by the raw hot water take-out flow path blocking portion on the lower surface of the movable disk, the long grooves form the first and third water flow holes for flowing the raw water from the first water flow hole to the third water flow hole. Before covering from the top side The movable disk is located, the raw water that has been passed through the raw water inlet of the water purifier is purified, and purified water is discharged through the outlet of the water purifier. The long groove covers the second and fourth water passage holes from the upper surface side so that the raw water flows from the second water passage hole to the fourth water passage hole while being blocked by the raw water take-out flow passage blocking portion on the lower surface. A movable disk is located and the purification cartridge is washed with the raw water that has been passed through the outlet to discharge the impurities adhering to the purification cartridge together with the hot water through the inlet of the raw water, and the long groove has four passages When the movable disk is slid so as not to overlap the hole, the movable disk is in a water stop state and is configured to block the flow paths of the raw water and the raw hot water to the water purifier. Under-Sink-type water purifier faucet that. 2. Purifying water by operating one switching lever,
A switching mechanism for switching between three states of backwashing and water stoppage is provided in the faucet body, and a hollow cylinder body and a cylindrical movable body that is rotatably fitted in the cylinder body. A faucet of an under-sink type water purifier provided in a domestic sink, which is composed of a valve, wherein the switching lever is
A partition wall that is fixed to a rotary shaft provided at one end of the movable valve and that divides two chambers in the central portion in the longitudinal direction is formed in the movable valve. It communicates with the outside through four water holes formed in the body wall of the valve, and one of the four water holes functions as a first internal discharge port that communicates with the faucet when in a backwash state. On the other hand, the chamber on the side far from the rotation axis communicates with the outside through the four water passage holes formed in the body wall of the movable valve, and one of the four water passage holes is clean water. In the state, while functioning as a second internal outlet that communicates with the faucet, the hollow cylindrical body is fixedly arranged in a horizontal state in the faucet body, and the body wall of the cylindrical body has six water passages. The outside that communicates with the second internal discharge port of the movable valve when the hole is formed and in the purified water state A water passage hole as a mouth, a water passage hole as an external outlet communicating with the first inner discharge outlet of the movable valve when in a backwash state, and a three water passage hole of the movable valve when in a clean state. A faucet for an under-sink type water purifier, which has three water passages that communicate with each other and three water passages that respectively communicate with the three water passages of the movable valve when in a backwashing state.