WO2019186866A1 - 浄水機能付き吐水ヘッド、浄水カートリッジ及び水栓装置 - Google Patents
浄水機能付き吐水ヘッド、浄水カートリッジ及び水栓装置 Download PDFInfo
- Publication number
- WO2019186866A1 WO2019186866A1 PCT/JP2018/013142 JP2018013142W WO2019186866A1 WO 2019186866 A1 WO2019186866 A1 WO 2019186866A1 JP 2018013142 W JP2018013142 W JP 2018013142W WO 2019186866 A1 WO2019186866 A1 WO 2019186866A1
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- WIPO (PCT)
- Prior art keywords
- water
- water purification
- purification cartridge
- annular packing
- purified water
- Prior art date
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Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/13—Supported filter elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/13—Supported filter elements
- B01D29/15—Supported filter elements arranged for inward flow filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
- B01D29/56—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
- B01D35/04—Plug, tap, or cock filters filtering elements mounted in or on a faucet
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
- B01D35/04—Plug, tap, or cock filters filtering elements mounted in or on a faucet
- B01D35/046—Plug, tap, or cock filters filtering elements mounted in or on a faucet the filtering element being mounted in the faucet plug
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
- E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
- E03C1/02—Plumbing installations for fresh water
- E03C1/10—Devices for preventing contamination of drinking-water pipes, e.g. means for aerating self-closing flushing valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0245—Construction of housing; Use of materials therefor of lift valves with ball-shaped valve members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0263—Construction of housing; Use of materials therefor of lift valves multiple way valves
Definitions
- the present invention relates to a water discharge head with a water purification function, a water purification cartridge, and a faucet device.
- Japanese Patent No. 6186059 discloses a water purifier cartridge that is exchangeably accommodated in a water purifier accommodating portion.
- This cartridge for water purifier has a buffer part which is arranged downstream of the purification material and blocks water hammer from the flow path switching valve to the purification material.
- Japanese Patent No. 6186059 is effective in preventing the purification material from being damaged.
- the technology of Japanese Patent No. 6186059 is effective in preventing the attachment of the water purifier and the water purifier cartridge.
- the present disclosure provides an improved water discharge head, water purification cartridge, and faucet.
- the water purification cartridge is disposed in the water purification cartridge mounting portion of the water discharge head with a water purification function, and has a connection end connected to the connection receiving portion of the water purification cartridge mounting portion.
- the connection end portion has a purified water outlet hole, a first annular packing located on the downstream side of the purified water outlet hole, and a second annular packing located on the upstream side of the purified water outlet hole.
- An outer diameter G1 of the first annular packing is smaller than an outer diameter G2 of the second annular packing.
- the water discharge head with a water purification function includes a discharge port, a raw water flow channel, a water purification flow channel, a switching mechanism that switches between the raw water flow channel and the water purification flow channel, and the water purification flow channel
- the water purification cartridge which produces
- the water purification cartridge mounting part has a connection receiving part connected to the water purification cartridge.
- the water purification cartridge has a connection end connected to the connection receiving portion.
- the connection end portion has a purified water outlet hole, a first annular packing located on the downstream side of the purified water outlet hole, and a second annular packing located on the upstream side of the purified water outlet hole.
- the outer diameter of the first annular packing is smaller than the outer diameter of the second annular packing.
- Another aspect is a faucet device provided with the water discharge head with the water purification function.
- FIG. 1 is a perspective view of a faucet device according to an embodiment.
- FIG. 2 is a front view of a water discharge head in the faucet device of FIG. 3A and 3B are cross-sectional views taken along the line AA in FIG.
- the phase of the water purification cartridge differs between FIG. 3 (a) and FIG. 3 (b).
- 4A is a cross-sectional view taken along the line aa in FIG. 4B
- FIG. 4B is a cross-sectional view taken along the line bb in FIG. 4A.
- 5A is a cross-sectional view taken along the line aa in FIG. 5B
- FIG. 5B is a cross-sectional view taken along the line bb in FIG. 5A.
- FIG. 6 is a perspective view of a water purification cartridge attached to the faucet device of FIG. 7 (a) is a side view of the water purification cartridge of FIG. 6,
- FIG. 7 (b) is a front view of the water purification cartridge viewed from the front (downstream side)
- FIG. 7 (c) is a diagram of FIG. FIG. 7B is a cross-sectional view taken along the line cc in FIG. 7B
- FIG. 7D is a cross-sectional view taken along the line dd in FIG. 7B.
- FIG. 8 is a partially enlarged view of FIG.
- FIG. 9 is a partially enlarged view of FIG.
- FIG. 10 is a partially enlarged view of FIG.
- FIG. 11 is a partially enlarged view of FIG.
- FIG. 12 is a partially enlarged view of FIG.
- FIG. 13 is a partially enlarged view of FIG. 2 of Japanese Patent No. 6186059.
- the radial direction in the present application means the radial direction of the water purification cartridge attached to the regular position.
- the axial direction in the present application means the axial direction of the water purification cartridge attached to the regular position.
- the upstream side in the present application means the upstream side in the water flow
- the downstream side means the downstream side in the water flow.
- the upstream side and the downstream side are determined based on the axial direction. That is, in the water purification cartridge, the axial front end side is the downstream side, and the axial rear end side is the upstream side.
- the downstream side is also referred to as the front
- the upstream side is also referred to as the rear.
- FIG. 13 is a partially enlarged view of FIG. 2 of Japanese Patent No. 6186059.
- two O-rings 13 are arranged on the outer peripheral surface of the connecting cylinder portion 10a of the water purifier cartridge.
- the outer diameter of the downstream O-ring 13a is equal to the outer diameter of the upstream O-ring 13b.
- the outlet 10 e is located at a position that matches the purified water receiving port 11 a of the cartridge receiver 11.
- the outlet 10e extends in the radial direction.
- the connecting tube portion 10 a When the water purification cartridge is mounted, the connecting tube portion 10 a is inserted into the cartridge receiver 11. In this insertion, the downstream O-ring 13 a is rubbed by the first edge 15 and further rubbed by the second edge 16. That is, it is rubbed twice with one insertion. For this reason, the downstream O-ring 13a is likely to be damaged (improvement target 1).
- the axial length of the peripheral portion of the outlet 10e increases. Due to the increase in the axial length, the total length of the water purification cartridge is increased, and the water purification performance (the length of the water purification material) is likely to be sacrificed.
- the purified water discharged outward in the radial direction flows to the downstream side after hitting the surface of the flow path forming member substantially perpendicularly (arrow in FIG. 13). reference). In this case, the channel resistance is likely to increase (improvement target 3).
- Water stains, dirt, and the like can accumulate in the gap 19 between the radial tip 17 of the wall portion and the opposing member located on the upstream side of the downstream O-ring 13a.
- the deposit is scraped out by the downstream O-ring 13a and may enter the water purification channel from the water purification receiving port 11a (improvement target 4).
- the following embodiment can improve the newly found improvement target.
- FIG. 1 is a perspective view of a faucet device 102 according to an embodiment.
- the faucet device 102 is attached to a sink (not shown).
- the description of the part which is not visually recognized, ie, the part inside the sink, is omitted.
- a sink and a bathroom are illustrated in addition to a sink.
- the faucet device 102 has a main body 104, a lever handle 106, and a water discharge head 108 with a water purification function.
- the faucet device 102 is a so-called single lever faucet.
- the temperature of the water discharge can be adjusted by turning the lever handle 106 left and right.
- the amount of water discharged can be adjusted by rotating the lever handle 106 up and down.
- a valve mechanism that allows adjustment of the temperature and the amount of water discharged is incorporated in the main body 104. This valve mechanism is known.
- the faucet device having the faucet device 102 has a hot water introduction pipe and a water introduction pipe.
- the hot water introduction pipe is connected to a pipe extending from the water heater.
- the water introduction pipe is connected to the water supply pipe without passing through the water heater.
- the heated hot water is introduced into the hot water introducing pipe. Heating is performed by a water heater. Unheated water is introduced into the water introduction pipe. The mixing ratio of hot water and water is adjusted by the valve mechanism. By this mixing ratio, temperature control of the water discharge is achieved.
- heated hot water, unheated water, and a mixed liquid thereof are also simply referred to as “water”.
- the water discharge head 108 includes a water guiding unit 110, a switching unit 112, an operation unit 114, a water shape adjusting unit 116, a display unit 120, and a discharge port 122.
- the operation unit 114 is a push button.
- the water guide part 110 also functions as a grip part.
- the water shape adjusting unit 116 can change the shape (water shape) of the discharged water.
- the water shape adjustment unit 116 has a water shape adjustment lever 118.
- the water shape can be changed by operating the water shape adjusting lever 118.
- By operating the water shape adjusting lever 118 two or more types of water shapes can be selected. In the case of a configuration in which two types of water shapes can be selected, it is preferable that a straight water shape and a shower water shape can be selected. In the case of a configuration in which three types of water shapes can be selected, it is preferable that a straight water shape and a first shower water shape and a second shower water shape having different shower water discharge modes can be selected. Configuration is adopted.
- the shower water discharge mode includes a shower water discharge range, a shower water discharge amount, a shower water discharge momentum, and the like.
- the water discharge head 108 has a raw water flow path and a purified water flow path.
- raw water is discharged from the discharge port 122.
- a state in which raw water is discharged is also referred to as a raw water discharge state.
- purified water flow path is selected, purified water is discharged from the discharge port 122.
- the state where purified water is discharged is also referred to as a purified water discharge state.
- the switching unit 112 has a switching mechanism capable of switching whether the discharged water is purified water or raw water by the operation of the operation unit 114. By this switching mechanism, the raw water discharge state or the purified water discharge state can be selected.
- FIG. 2 is a front view of the water discharge head 108.
- 3A and 3B are cross-sectional views taken along the line AA in FIG. The difference between FIG. 3A and FIG. 3B is the circumferential position (phase) of the water purification cartridge.
- the operation unit 114 is in the pop-out position.
- 4A, 4B, 5A, and 5B are also cross-sectional views of the water discharge head 108.
- FIG. FIG. 4A is a cross-sectional view along the line aa in FIG.
- FIG. 4B is a cross-sectional view along the line bb in FIG. 4 (a) and 4 (b), the operation unit 114 is in the pop-out position.
- FIG. 4A is a cross-sectional view along the line aa in FIG.
- FIG. 4B is a cross-sectional view along the line bb in FIG. 4 (a) and 4 (b)
- the operation unit 114 is in the pop-out position.
- FIG. 5A is a cross-sectional view taken along the line aa in FIG.
- FIG. 5B is a cross-sectional view taken along line bb in FIG. 5 (a) and 5 (b), the operation unit 114 is in the pushed-in position.
- the description of the line that appears in the background of the cross section is omitted.
- the operation unit 114 functions as a switching button. When switching the flow path, the operation unit 114 is pressed. Every time the operation unit 114 is pressed, switching between the raw water flow path and the purified water flow path is performed. In other words, every time the operation unit 114 is pressed, switching between the raw water discharge state and the purified water discharge state is performed.
- the switching mechanism has an alternate operation type thrust lock mechanism. By this thrust lock, the push button operation of the operation unit 114 is realized. Each time the pressing operation is performed, the push button 114 shifts between the pop-out position and the push-in position. This switching mechanism is known.
- FIG. 3A, FIG. 3B, FIG. 4A and FIG. 4B are raw water discharge states
- FIG. 5A and FIG. 5B are clean water discharge states.
- the purified water may be discharged when the push button 114 is in the protruding position, and the raw water may be discharged when the push button 114 is in the pushed position.
- the water discharge head 108 has a water purification cartridge PC1.
- the water purification cartridge PC1 is disposed inside the water guide section 110.
- the water guide part 110 has an outer cylinder part 124.
- a water purification cartridge PC1 is disposed inside the outer cylinder portion 124.
- a raw water channel WG is formed outside the water purification cartridge PC1.
- a purified water flow path WJ is formed inside the purified water cartridge PC1.
- the raw water that has passed through the raw water flow path WG is discharged from the discharge port 122 via the raw water flow path WG in the switching mechanism.
- the raw water is filtered through the permeation portion 126 of the purified water cartridge PC1 in the process from the outside to the inside of the purified water cartridge PC1 to become purified water.
- the purified water is discharged from the discharge port 122 via the purified water flow path WJ inside the purified water cartridge PC1 and the purified water flow path WJ in the switching mechanism.
- transmission part 126 is an example of a water purifying function part.
- the switching unit 112 of the water discharge head 108 includes a first valve 130 and a second valve 132. Water discharge is switched by opening and closing the two valves.
- the first valve 130 includes a valve seat 130a, a first valve body 130b, a ball holder 130c, and an elastic body 130d.
- the first valve 130 is a ball valve.
- the first valve body 130b is a ball.
- the valve seat 130a is an opening edge of a circular hole.
- the ball 130b is held by a ball holder 130c.
- the ball holder 130c is opened downward.
- An elastic body 130d is disposed between the upper portion of the ball holding body 130c and the ball 130b. This elastic body 130d is a coil spring.
- the ball 130b is always urged toward the valve seat 130a by the elastic body 130d.
- the second valve 132 includes a valve seat 132a, a second valve body 132b, a ball holder 132c, and an elastic body 132d.
- the second valve 132 is a ball valve.
- the second valve body 132b is a ball.
- the valve seat 132a is an opening edge of a circular hole.
- the ball 132b is held by the ball holder 132c.
- the ball holder 132c is opened downward.
- An elastic body 132d is disposed between the upper portion of the ball holder 132c and the ball 132b. This elastic body 132d is a coil spring.
- the ball 132b is always urged toward the valve seat 132a by the elastic body 132d.
- the push button 114 is connected to the ball holding body 130c and the ball holding body 132c through the thrust lock mechanism.
- the ball holder 130c and the ball holder 132c move together with the push button 114.
- the ball 130b moves with the ball holder 130c, and the ball 132b moves with the ball holder 132c.
- the valve seat 130a and the valve seat 132a are juxtaposed in a direction substantially perpendicular to the moving direction of the push button 114, but their positions differ (slightly) in the moving direction.
- the operation unit 114 when the operation unit 114 is in the protruding position, the ball 132b is fitted into the valve seat 132a, and the second valve 132 is closed. At this time, the center of the ball 130b is displaced from the center of the valve seat 130a, and the first valve 130 is open. In this state, raw water is discharged.
- the second valve 132 is a purified water cutoff valve that closes the purified water flow path.
- the first valve 130 is a raw water cutoff valve that closes the raw water flow path.
- the water discharge head 108 has a water purification cartridge mounting part 134.
- the water purification cartridge mounting part 134 has a cylindrical cavity 136 in which an intermediate part of the water purification cartridge PC1 is disposed, and a connection receiving part 138.
- the cylindrical cavity part 136 is formed inside the outer cylinder part 124.
- the connection receiving portion 138 is located on the downstream side of the cylindrical cavity portion 136.
- FIG. 6 is a perspective view of the water purification cartridge PC1.
- FIG. 7 (a) is a side view of the water purification cartridge PC1
- FIG. 7 (b) is a front view of the water purification cartridge PC1
- FIG. 7 (c) is a cross section taken along the line cc of FIG. 7 (b).
- FIG. 7D is a cross-sectional view taken along the line dd in FIG. 7B.
- the water purification cartridge PC1 includes an intermediate portion 150, a connection end portion 152 disposed at the front end portion of the intermediate portion 150, and a rear forming portion 154 disposed at the rear end portion of the intermediate portion 150.
- the connection end 152 is coaxial with the intermediate portion 150.
- the rear forming portion 154 is coaxial with the intermediate portion 150.
- connection end portion 152 is provided on the downstream side of the intermediate portion 150.
- the inside of the connection end 152 is a cavity. This cavity functions as a purified water flow path WJ. That is, the connection end 152 has a purified water flow path WJ therein.
- the material of the connection end 152 is resin.
- the connection end 152 is integrally formed as a whole.
- the connection end 152 is integrally formed of resin.
- the connection end 152 may be formed by combining a plurality of separately molded members.
- the intermediate part 150 has a cylindrical shape.
- the intermediate part 150 has a transmission part 151 that allows water to pass therethrough.
- the intermediate part 150 has a filtration function.
- the intermediate portion 150 has a hollow portion therein. This cavity functions as a purified water flow path WJ.
- the intermediate part 150 may have, for example, an outer filtration layer and an inner filtration layer.
- a water purification material may be disposed between the outer filtration layer and the inner filtration layer.
- the water purification material contains, for example, activated carbon as a main component.
- a nonwoven fabric is used for the outer filtration layer and the inner filtration layer.
- a ceramic having a sterilizing effect may be employed for the outer filtration layer and / or the inner filtration layer.
- An ion exchanger may be employed for the outer filtration layer and / or the inner filtration layer.
- the outer filtration layer may be a plurality of layers.
- the inner filtration layer may be a plurality of layers.
- the intermediate part 150 of this embodiment is an example of a water purification function part (part which exhibits a water purification function).
- the intermediate part 150 may not have a filtration function.
- the intermediate portion 150 may be a cylindrical wall portion that does not allow water to pass therethrough.
- the water purification cartridge PC1 of this embodiment has a purification material capable of removing chlorine.
- An example of the purification material is activated carbon.
- connection end 152 can pass water.
- the internal space of the connection end 152 is a purified water flow path WJ. The purified water generated by passing through the intermediate part 150 passes through the connection end part 152 and reaches the switching part 112.
- the rear forming portion 154 may be configured to allow water to pass therethrough.
- raw water may flow into the intermediate portion 150 from a through hole provided in the rear formation portion 154 of the water purification cartridge PC1.
- the intermediate part 150 can be a non-water-permeable cylindrical wall part.
- connection end portion 152 has a first cylindrical portion 160. Further, the connection end portion 152 has a second cylindrical portion 162. Further, the connection end portion 152 has a third cylindrical portion 164. Further, the connection end portion 152 has a holding cylindrical portion 166.
- the first cylindrical portion 160 is located on the downstream side of the second cylindrical portion 162.
- the second cylindrical portion 162 is located on the downstream side of the third cylindrical portion 164.
- the third cylindrical portion 164 is located on the downstream side of the holding cylindrical portion 166.
- the second cylindrical portion 162 is located between the first cylindrical portion 160 and the third cylindrical portion 164.
- the first cylindrical portion 160 and the second cylindrical portion 162 are coaxial.
- the second cylindrical portion 162 and the third cylindrical portion 164 are coaxial.
- the third cylindrical portion 164 and the holding cylindrical portion 166 are coaxial.
- the center line of the first cylindrical portion 160 coincides with the center line z1 of the water purification cartridge PC1.
- the center line of the second cylindrical portion 162 coincides with the center line z1 of the water purification cartridge PC1.
- the center line of the third cylindrical portion 164 coincides with the center line z1 of the water purification cartridge PC1.
- the center line of the holding cylindrical portion 166 coincides with the center line z1 of the water purification cartridge PC1.
- connection end 152 has a first annular packing s1 and a second annular packing s2.
- first annular packing s1 is an O-ring.
- second annular packing s2 is an O-ring.
- connection end portion 152 has a maximum outer diameter portion.
- the maximum outer diameter portion of the connection end portion 152 is the holding cylindrical portion 166.
- the maximum outer diameter portion (holding cylindrical portion 166) covers the downstream end of the intermediate portion 150.
- the maximum outer diameter portion (holding cylindrical portion 166) holds the end portion on the downstream side of the intermediate portion 150.
- the outer diameter of the first cylindrical portion 160 is smaller than the outer diameter of the second cylindrical portion 162.
- the outer diameter of the second cylindrical portion 162 is smaller than the outer diameter of the third cylindrical portion 164.
- the outer diameter of the third cylindrical portion 164 is smaller than the outer diameter of the holding cylindrical portion 166.
- the connection end 152 has a first annular packing s1 and a second annular packing s2.
- the first annular packing s ⁇ b> 1 is disposed in the first cylindrical portion 160.
- the second annular packing s ⁇ b> 2 is disposed in the second cylindrical portion 162.
- FIG. 8 is a partially enlarged view of FIG.
- FIG. 9 is a partially enlarged view of FIG.
- the first cylindrical portion 160 constitutes an end portion on the downstream side of the connection end portion 152.
- the first cylindrical portion 160 constitutes an end portion on the downstream side of the water purification cartridge PC1.
- the first cylindrical portion 160 constitutes the downstream end of the water purification cartridge PC1.
- the first cylindrical portion 160 constitutes an end portion on the downstream side of the connection end portion 152.
- the connection end 152 has a tip 170.
- the first cylindrical portion 160 is the tip portion 170.
- the tip portion 170 has a first groove 172.
- channel 172 is formed in the outer peripheral surface of the front-end
- the first groove 172 is a circumferential groove.
- the first groove 172 is formed between the front wall portion 173a and the rear wall portion 173b.
- the front wall portion 173 a forms a front side surface of the first groove 172.
- the rear wall portion 173 b forms a rear side surface of the first groove 172.
- the first annular packing s1 is disposed at the tip portion 170.
- the first annular packing s ⁇ b> 1 is disposed in the first groove 172.
- the distal end portion 170 has a distal end surface 174.
- the front end surface 174 is a front end surface of the water purification cartridge PC1.
- the front end surface 174 is a front end surface of the connection end portion 152.
- the tip surface 174 is a flat surface.
- the front end surface 174 extends along the radial direction.
- the distal end surface 174 is annular (see FIG. 7B).
- the tip surface 174 is provided over the entire circumferential direction.
- the center of the front end surface 174 is located on the center line z1 of the water purification cartridge PC1.
- the tip portion 170 is impermeable to water.
- the inner surface of the tip portion 170 faces the purified water flow path WJ.
- the inner surface of the tip portion 170 includes an inner surface 194 described later.
- the outer surface of the tip portion 170 faces the raw water flow path WG.
- the outer surface of the distal end portion 170 includes a distal end surface 174 and a recess 176.
- the outer surface of the tip portion 170 has a recess 176.
- the inner surface and the outer surface of the tip portion 170 are partitioned by the first annular packing s1.
- the center line of the tip portion 170 coincides with the center line z1 of the water purification cartridge PC1.
- the tip portion 170 is disposed at a position that intersects the center line z1 of the water purification cartridge PC1.
- the recess 176 is open to the downstream side.
- the recess 176 is open toward the front in the axial direction.
- the recess 176 is open to the raw water flow path WG.
- the recess 176 is impermeable to water.
- the cross-sectional shape of the recess 176 is circular (see FIG. 7B).
- a distal end surface 174 is disposed around the recess 176 (outside in the radial direction).
- the recess 176 forms a cavity inside the tip portion 170.
- the recess 176 forms a cylindrical cavity.
- the cavity formed by the recess 176 exists on the radially inner side of the first annular packing s1.
- the cavity formed by the recess 176 exists on the radially inner side of the first groove 172.
- the center line of the front end surface 174 coincides with the center line z1 of the water purification cartridge PC1.
- the recess 176 has a side surface 178 and a bottom surface 180.
- the side surface 178 is a circumferential surface.
- the side surface 178 is located on the radially inner side of the first groove 172.
- the bottom surface 180 is a flat surface.
- the bottom surface 180 extends along the radial direction.
- the bottom surface 180 is circular.
- the center of the bottom surface 180 is located on the center line z1 of the water purification cartridge PC1.
- a cavity is formed by a recess 176 on the radially inner side of the first groove 172.
- a cavity is formed by a recess 176 inside the bottom surface 172a in the radial direction.
- the front end portion 170 has a partition wall 190.
- the partition wall 190 is impermeable to water.
- the partition wall 190 is located on the upstream side of the tip surface 174.
- the partition wall 190 extends along the radial direction.
- the center line of the partition wall 190 coincides with the center line z1 of the water purification cartridge PC1.
- the partition wall 190 intersects the center line z1 of the water purification cartridge PC1. That is, the partition wall 190 is provided at a position that intersects the center line z1 of the water purification cartridge PC1. In the present embodiment, the partition wall 190 intersects the center line z1 of the water purification cartridge PC1 at the center thereof. The partition wall 190 may cross the center line z1 of the water purification cartridge PC1 at a position other than its center.
- the partition wall 190 constitutes a bottom surface 180 of the recess 176.
- the bottom surface 180 is the outer surface 192 of the partition wall 190.
- the outer surface of the distal end portion 170 has the concave portion 176 having the outer surface 192 of the partition wall 190 as the bottom surface 180.
- the partition wall 190 partitions the inside and the outside of the water purification cartridge PC1.
- An outer surface 192 of the partition wall 190 constitutes an outer surface of the water purification cartridge PC1.
- the outer surface 192 faces the raw water flow path WG.
- An inner surface 194 of the partition wall 190 constitutes an inner surface of the water purification cartridge PC1.
- the inner surface 194 faces the purified water flow path WJ.
- connection end portion 152 has a connection extension portion 200.
- the connection extending part 200 connects the first cylindrical part 160 and the second cylindrical part 162. As shown in FIGS. 6 and 7B, the plurality of connection extending portions 200 are arranged at equal intervals in the circumferential direction. In this embodiment, the four connection extension parts 200 are arrange
- the connection extending part 200 extends in a direction inclined with respect to the center line z1 of the water purification cartridge PC1.
- the connection extension part 200 is extended so that it may become radial inner side, so that it goes downstream.
- the connection extending part 200 connects the downstream side of the second cylindrical part 162 and the upstream side of the first cylindrical part 160.
- the second cylindrical portion 162 has a second groove 210.
- the second groove 210 is a circumferential groove.
- the second groove 210 is formed on the outer peripheral surface of the second cylindrical portion 162.
- a second annular packing s ⁇ b> 2 is disposed in the second groove 210.
- the inside of the second cylindrical portion 162 is a cavity.
- the inside of the 2nd cylindrical part 162 is the purified water flow path WJ.
- the second cylindrical portion 162 has a downstream end surface 212.
- the downstream end surface 212 is a flat surface.
- the downstream end surface 212 extends along the radial direction.
- the downstream end surface 212 is annular.
- the downstream end face 212 is formed over the entire circumferential direction.
- the downstream end face 212 may be formed continuously without interruption in the entire circumferential direction.
- the downstream side end surface 212 may be formed by arranging the divided portions divided by the connection extending portion 200 in the circumferential direction.
- the downstream side end surface 212 may have a portion formed continuously without interruption in the entire circumferential direction, and a portion in which the divided portions divided by the connection extending portion 200 are arranged in the circumferential direction.
- the downstream side end surface 212 is formed by arranging four divided portions 214 divided by the connection extending portion 200 in the circumferential direction.
- the connecting extension part 200 has an extension part downstream surface 202.
- the extension portion downstream surface 202 is a downstream surface of the connection extension portion 200.
- the extending portion downstream surface 202 includes a configuration 1 that extends so as to be radially inward as it goes downstream.
- the downstream end surface 212 has a configuration 2 that extends in the radial direction, that is, a surface perpendicular to the axial direction.
- the surface of the connecting end portion that presses the pressing portion extends in the radial direction, that is, the surface is perpendicular to the axial direction, so that the pressing of the pressing portion can be performed accurately and / or satisfactorily.
- Effect 2 is possible.
- the effect 2 is manifested by the downstream end surface 212 extending in the radial direction.
- both the effect 1 and the effect 2 can be realized. Furthermore, since both structures are arranged in the same axial direction region of the connecting end 152, as a result, the water discharge head with a water purification function, the water purification cartridge and the faucet device are prevented from being enlarged, and the purification function unit is disposed. An increase in possible area can also be achieved.
- the third cylindrical portion 164 has a circumferential surface 220 and a step surface 222.
- the circumferential surface 220 is a circumferential surface.
- the center line of the circumferential surface 220 is the center line z1 of the water purification cartridge PC1.
- the step surface 222 is a flat surface.
- the step surface 222 extends along the radial direction.
- the step surface 222 is annular.
- the step surface 222 is formed over the entire circumferential direction.
- the inside of the 3rd cylindrical part 164 is the purified water flow path WJ.
- the holding cylindrical portion 166 has a circumferential surface 230 and a step surface 232.
- the circumferential surface 230 is a circumferential surface.
- the center line of the circumferential surface 230 is the center line z1 of the water purification cartridge PC1.
- the step surface 232 is a flat surface.
- the step surface 232 extends along the radial direction.
- the step surface 232 is annular.
- the step surface 232 is formed over the entire circumferential direction.
- the step surface 232 connects the upstream side of the circumferential surface 220 and the downstream side of the circumferential surface 230.
- the connection end 152 has a purified water outlet hole 240.
- the first annular packing s ⁇ b> 1 is located downstream of the purified water outlet hole 240.
- the second annular packing s ⁇ b> 2 is located on the upstream side of the purified water outlet hole 240.
- the purified water outlet hole 240 is located between the first cylindrical portion 160 (tip portion 170) and the second cylindrical portion 162.
- the 1st cylindrical part 160 is separated from the 2nd cylindrical part 162, and the purified water exit hole 240 is formed by this separation.
- a purified water outlet hole 240 is formed between the connection extending portions 200 adjacent to each other in the circumferential direction.
- FIG. 10 is a partially enlarged view of FIG. FIG. 10 is an enlarged view of the vicinity of the connection end 152.
- the water purification cartridge mounting portion 134 of the water discharge head 108 has the connection receiving portion 138.
- the connection receiving portion 138 includes a first receiving cylindrical portion 254 and a second receiving cylindrical portion 256.
- the first receiving cylindrical portion 254 is located on the downstream side of the second receiving cylindrical portion 256.
- the first receiving cylindrical portion 254 is located on the downstream side of the second receiving cylindrical portion 256.
- the inner diameter of the first receiving cylindrical portion 254 is smaller than the inner diameter of the second receiving cylindrical portion 256.
- the outer diameter of the first receiving cylindrical portion 254 is smaller than the inner diameter of the second receiving cylindrical portion 256.
- connection end portion 152 is connected to the connection receiving portion 138 in a watertight manner.
- the first annular packing s1 and the second annular packing s2 ensure water tightness.
- the first cylindrical portion 160 (tip portion 170) of the connection end portion 152 is inserted inside the first receiving cylindrical portion 254.
- the first annular packing s ⁇ b> 1 is in close contact with the inner peripheral surface of the first receiving cylindrical portion 254.
- the second cylindrical portion 162 of the connection end portion 152 is inserted inside the second receiving cylindrical portion 256.
- the second annular packing s2 is in close contact with the inner peripheral surface of the second receiving cylindrical portion 256.
- An end surface 258 of the second receiving cylindrical portion 256 is in contact with the step surface 222. By this contact, the water purification cartridge PC1 is positioned in the axial direction.
- the connection receiving portion 138 has a purified water passage WJ1 that divides purified water from the purified water outlet hole 240 from the raw water channel WG and constitutes a part of the purified water channel WJ (see FIG. 5B and FIG. 10). ). Moreover, the connection receiving part 138 has the raw
- the partition wall 260 is located on the downstream side of the recess 176.
- the partition wall 260 extends along the radial direction.
- the partition wall 260 forms a raw water passage WG1 between the partition wall 260 and the recess 176.
- the raw water passage WG1 forms a raw water passage WG penetrating in the left-right direction (see FIG. 4A).
- the raw water passage WG1 guides raw water to the front end surface 174 of the water purification cartridge PC1.
- the raw water passage WG1 guides raw water to the recess 176.
- the front end surface 174 faces the raw water flow path WG.
- the recess 176 faces the raw water channel WG.
- the first annular packing s1 and the second annular packing s2 prevent purified water from the purified water outlet hole 240 from flowing into the raw water flow path WG.
- the first annular packing s1 prevents water from the raw water passage WG1 from flowing into the purified water passage WJ.
- the second annular packing s ⁇ b> 2 prevents water from the raw water flow path WG from flowing into the outlet of the purified water outlet hole 240.
- the second annular packing s2 prevents purified water from the purified water outlet hole 240 from flowing into the raw water flow path WG.
- a water-permeable member 270 is installed on the downstream side of the recess 176 (see FIG. 10).
- the water permeable member 270 is disposed so as to face the front end surface 174.
- the water permeable member 270 is installed facing the raw water passage WG1.
- the water permeable member 270 is disposed between the raw water passage WG1 and the distal end surface 174.
- the water permeable member 270 is disposed between the raw water passage WG1 and the recess 176.
- the water permeable member 270 is a net. This net is a metal net (mesh metal net).
- the water permeable member 270 does not hinder the flow of the raw water flow path WG.
- the water flow in the raw water passage WG1 can hit the tip surface 174.
- the water flow in the raw water passage WG1 can flow into the recess 176.
- the water permeable member 270 can prevent foreign matter from entering the raw water passage WG1.
- FIG. 11 is a partially enlarged view of FIG.
- the purified water outlet hole 240 of the purified water cartridge PC1 has an outlet opening edge 242.
- the outlet opening edge 242 has a radially inner edge 242a and a radially outer edge 242b.
- the radially inner edge 242a is a circle as a whole.
- the center of the radially inner edge 242a is located on the center line z1 of the water purification cartridge PC1.
- the radially outer edge 242b is a circle as a whole.
- the center of the radially outer edge 242b is located on the center line z1 of the water purification cartridge PC1.
- the radially inner edge 242a is located more radially inward than the radially outer edge 242b.
- the radially inner edge 242a is located downstream of the radially outer edge 242b.
- FIG. 11 what is indicated by a broken line is a straight line L1 connecting the radially inner edge 242a and the radially outer edge 242b.
- a two-dot chain line indicates a straight line L2 perpendicular to the straight line L1.
- the straight line L2 is inclined so as to go radially outward as it goes downstream.
- ⁇ is an angle formed by the center line z1 of the water purification cartridge PC1 and the straight line L2. This angle ⁇ is also referred to as an opening inclination angle.
- a double-headed arrow S ⁇ b> 1 is the radial opening width of the outlet opening edge 242 of the purified water outlet hole 240.
- the outlet opening edge 242 has a radial opening width S1.
- the radial opening width S1 is a radial distance between the radial inner edge 242a and the radial outer edge 242b.
- a double arrow V indicates the axial width of the outlet opening edge 242.
- the outlet opening edge 242 has an axial width V.
- the axial width V is an axial distance between the radially inner edge 242a and the radially outer edge 242b.
- the purified water outlet hole 240 penetrates in the axial direction. In other words, the purified water outlet hole 240 is connected in the axial direction.
- FIG. 12 is an enlarged cross-sectional view in which a part of FIG. 11 is enlarged.
- the purified water outlet hole 240 can pass a straight line X extending in the axial direction (see arrow y1 in FIG. 12).
- the purified water outlet hole 240 has, as the straight line X, a straight line X1 located on the outermost radial direction and a straight line X2 located on the innermost radial direction.
- the straight line X1 and the straight line X2 are separated in the radial direction.
- the purified water outlet hole 240 has a front-rear penetration width S2.
- the front-rear penetration width S2 is equal to the radial opening width S1.
- the diameter of the cross section of the first annular packing s1 is the cross sectional diameter D1 (mm)
- the diameter of the cross section of the second annular packing s2 is the cross sectional diameter D2 (mm).
- the cross-sectional diameter D1 is a diameter of the first annular packing s1 alone. That is, the cross-sectional diameter D1 is measured in a state where no external force is applied to the first annular packing s1.
- the cross-sectional diameter D2 is a diameter of the second annular packing s2 alone. That is, the cross-sectional diameter D2 is measured in a state where no external force is applied to the second annular packing s2.
- the cross-sectional diameter D1 is smaller than the cross-sectional diameter D2.
- the cross-sectional diameter D1 is smaller than the groove width M1.
- the cross-sectional diameter D2 is smaller than the groove width M2.
- the groove width M1 is larger than the cross-sectional diameter D1 of the first annular packing s1.
- the first annular packing s1 has an axial gap. In the first groove 172, the first annular packing s1 can move in the axial direction.
- the bottom surface 172a of the first groove 172 is a circumferential surface as a whole and has a diameter.
- the diameter of the bottom surface 172a varies depending on the axial position. In the present embodiment, the diameter of the bottom surface 172a is smaller on the downstream side than on the upstream side.
- the first annular packing s ⁇ b> 1 is located on the most upstream side in the first groove 172.
- the first annular packing s1 moves downstream in the first groove 172, the compression of the first annular packing s1 is loosened.
- the first annular packing s1 moves downstream in the first groove 172, the first annular packing s1 has a smaller inner diameter and a smaller outer diameter. The removal of the water purification cartridge PC1 is facilitated by the movement of the first annular packing s1 toward the downstream side.
- the groove width M2 is larger than the cross-sectional diameter D2 of the second annular packing s2.
- the first annular packing s1 has a gap in the axial direction.
- the second annular packing s2 can move in the axial direction.
- the bottom surface 210a of the second groove 210 is a circumferential surface as a whole and has a diameter.
- the diameter of the bottom surface 210a is larger than the diameter of the bottom surface 172a.
- the diameter of the bottom surface 210a does not change depending on the axial position.
- the diameter of the bottom surface 210a is constant.
- the second annular packing s ⁇ b> 2 is located most upstream in the second groove 210. Even if the second annular packing s2 moves in the axial direction in the second groove 210, the degree of compression of the second annular packing s2 does not change.
- FIG. 9 what is indicated by a double arrow G1 is the outer diameter of the first annular packing s1.
- the outer diameter G1 is measured in a state where the first annular packing s1 is installed in the first groove 172 and the water purification cartridge PC1 is not installed in the water discharge head 108. In other words, the outer diameter G1 is measured in the state of the water purification cartridge PC1 alone.
- what is indicated by a double arrow G2 is the outer diameter of the second annular packing s2.
- the outer diameter G2 is measured in a state where the second annular packing s2 is attached to the second groove 210 and the water purification cartridge PC1 is not attached to the water discharge head 108.
- the outer diameter G2 is measured in the state of the water purification cartridge PC1 alone.
- the outer diameters G1 and G2 of the annular packing are the positions where the outer diameter of the bottom surface of the groove is the maximum. Measured in place.
- the outer diameter G1 of the first annular packing s1 is smaller than the outer diameter G2 of the second annular packing s2.
- a double arrow W2 indicates a width obtained by subtracting the cross-sectional diameter D2 from the groove width M2.
- W2 M2-D2.
- Width W1 is larger than width W2. In other words, the difference (M1-D1) is larger than the difference (M2-D2).
- the annular packings s1 and s2 can be easily deformed when the water purification cartridge PC1 is removed. For this reason, detachability improves. Further, the annular packings s1 and s2 can move in the groove. Therefore, the fixing part is peeled off step by step, and the detachability is improved.
- This embodiment has the following effects.
- this configuration improves the improvement object 2 described above. Since the outer diameter G1 of the first annular packing s1 is small, the outer diameter of the first cylindrical portion 160 in which the first annular packing s1 is disposed is also small (see FIG. 7A). Therefore, in the initial stage of insertion of the water purification cartridge PC1, even if the center line z1 of the water purification cartridge PC1 is inclined, the probability that the first cylindrical portion 160 hits the inner surface of the second receiving cylindrical portion 256 is low (see FIG. 10). For this reason, the damage of the inner surface of the connection receiving part 138 is suppressed (the effect of suppressing the damage of the receiving part).
- G1 ⁇ G2 makes it easy to incline the straight line L2 (FIG. 11), which is the direction of the purified water outlet hole 240, and to easily penetrate the purified water outlet hole 240 in the axial direction. Therefore, this configuration also contributes to the improvement of the improvement object 3 and the improvement object 4.
- the outer diameter G1 of the first annular packing s1 is preferably 7 mm or more, more preferably 9 mm or more, and still more preferably 10 mm or more. If the outer diameter G1 is excessively large, the water purification cartridge PC1 and the water discharge head 108 become large, and the faucet tends to be large. In this respect, the outer diameter G1 is preferably equal to or less than 18 mm, more preferably equal to or less than 15 mm, and still more preferably equal to or less than 13 mm. In the above embodiment, the outer diameter G1 is 11 mm.
- the outer diameter G2 of the second annular packing s2 is preferably equal to or greater than 12 mm, more preferably equal to or greater than 14 mm, and still more preferably equal to or greater than 16 mm. If the outer diameter G2 is excessively large, the water purification cartridge PC1 and the water discharge head 108 become large, and the faucet tends to be large. In this respect, the outer diameter G2 is preferably equal to or less than 25 mm, more preferably equal to or less than 23 mm, and still more preferably equal to or less than 21 mm. In the above embodiment, the outer diameter G2 is 18.8 mm.
- the difference (G2 ⁇ G1) is preferably 3 mm or more, more preferably 4 mm or more, and further preferably 6 mm or more. If the difference (G2-G1) is excessive, the water purification cartridge PC1 and the water discharge head 108 become large, and the faucet tends to be large. In this respect, the difference (G2 ⁇ G1) is preferably 15 mm or less, more preferably 12 mm or less, and still more preferably 10 mm or less. In the above embodiment, the difference (G2 ⁇ G1) is 7.8 mm.
- G2 / G1 is preferably equal to or greater than 1.2 mm, more preferably equal to or greater than 1.3 mm, and still more preferably equal to or greater than 1.5 mm. If G2 / G1 is excessive, the water purification cartridge PC1 and the water discharge head 108 become large, and the faucet tends to be large.
- G2 / G1 is preferably equal to or less than 2.5 mm, more preferably equal to or less than 2.3 mm, and still more preferably equal to or less than 1.9 mm. In the above embodiment, G2 / G1 is 1.7 mm.
- This opening inclination angle ⁇ improves the improvement object 3 described above.
- the opening inclination angle ⁇ allows the purified water to flow obliquely forward through the purified water outlet hole 240 while suppressing the axial length of the purified water outlet hole 240. Since the axial direction length of the purified water outlet hole 240 is suppressed, it is suppressed that the full length of the purified water cartridge PC1 becomes long or the water purification performance (the length of the purified water material) is sacrificed (axial direction). Length suppression effect).
- the purified water since the purified water is discharged obliquely forward from the purified water outlet hole 240, the purified water can be prevented from hitting the surface of the flow path forming member perpendicularly, and the flow path resistance can be reduced (flow path resistance reduction effect).
- the opening inclination angle ⁇ improves the improvement object 4 described above.
- FIG. 13 in the embodiment of FIG.
- the opening inclination angle ⁇ is less than 90 °, and due to this angle ⁇ , a water flow obliquely forward can occur at the purified water outlet hole 240 (see arrow y2 in FIG. 12).
- This diagonally forward water stream includes a component that is axially forward and easily flows into the gap 280 between the rear wall portion 173b and the first receiving cylindrical portion 254. Therefore, water does not easily stay in the gap 280, and water stains and dirt are less likely to accumulate in the gap 280.
- the deposit is scraped by the first annular packing s1 when the water purification cartridge PC1 is taken out, and easily enters the water purification flow path WJ from the water purification outlet hole 240.
- the deposit is suppressed, and the inconvenience that the scraped-out deposit flows into the purified water flow path WJ is suppressed (deposit suppression effect).
- the opening inclination angle ⁇ is preferably 30 ° or more, more preferably 40 ° or more, and further preferably 50 ° or more. If the opening inclination angle ⁇ is excessive, the flow resistance reduction effect and the deposit suppression effect are reduced. In this respect, the opening inclination angle ⁇ is preferably 80 ° or less, more preferably 70 ° or less, and still more preferably 60 ° or less. In the present embodiment, the opening inclination angle ⁇ is 56 °.
- the front-rear penetration width S2 is preferably 1.05 mm or more, and more preferably 1.1 mm or more. If the front-rear penetration width S2 is excessive, the outer diameter G2 of the second annular packing s2 is increased, and the water purification cartridge PC1 and the water discharge head 108 are increased in size. Further, when the outer diameter G2 is increased, the water tightness generated by the second annular packing s2 is likely to be lowered. From these viewpoints, the front-rear penetration width S2 is preferably 5 mm or less, more preferably 3 mm or less, and still more preferably 2 mm or less. In the present embodiment, the front-rear penetration width S2 is 1.1 mm.
- the radial opening width S1 is preferably equal to or greater than 1.05 mm, and more preferably equal to or greater than 1.1 mm. If the radial opening width S1 is excessive, the outer diameter G2 of the second annular packing s2 is increased, and the water purification cartridge PC1 and the water discharge head 108 are increased in size. Further, when the outer diameter G2 is increased, the water tightness generated by the second annular packing s2 is likely to be lowered. From these viewpoints, the radial opening width S1 is preferably 5 mm or less, more preferably 3 mm or less, and still more preferably 2 mm or less. In the present embodiment, the radial opening width S1 is 1.1 mm.
- the outer diameter of the annular packing is small, the handling of the annular packing is reduced, for example, the work of extending the annular packing becomes difficult. For this reason, it is difficult to attach the annular packing having a small outer diameter to the groove. That is, the mounting property of the annular packing having a small outer diameter is low, and the mounting property of the annular packing having a large outer diameter is high.
- the cross-sectional diameter of the annular packing When the cross-sectional diameter of the annular packing is small, the annular packing is easy to extend and easy to install in the groove. That is, the mountability of the annular packing having a small cross-sectional diameter is high. An annular packing having a large cross-sectional diameter is difficult to stretch and has low mounting properties.
- An annular packing with a small cross-sectional diameter has a small possible crushing margin and a low sealing performance.
- An annular packing having a large cross-sectional diameter can increase the crushing margin, and therefore has high sealing performance. Moreover, if the crushing allowance is large, it is easy to ensure the sealing performance even if a manufacturing dimension error of the peripheral member occurs.
- the first annular packing s1 on the downstream side may be deteriorated in mountability due to the small outer diameter G1. For this reason, wearability is improved by reducing the cross-sectional diameter D1.
- the second annular packing s2 on the upstream side is highly mountable due to the large outer diameter G2, and there is a sufficient mountability. For this reason, the cross-sectional diameter D2 is increased to improve the sealing performance.
- the cross-sectional diameter D1 of the first annular packing s1 is preferably 1.0 mm or more, more preferably 1.2 mm or more, and further preferably 1.3 mm or more. From the viewpoint of wearability, the cross-sectional diameter D1 is preferably 2.0 mm or less, more preferably 1.9 mm or less, and even more preferably 1.7 mm or less. In the above embodiment, the cross-sectional diameter D1 is 1.5 mm.
- the cross-sectional diameter D2 of the second annular packing s2 is preferably 1.3 mm or more, more preferably 1.5 mm or more, and even more preferably 1.7 mm or more.
- the cross-sectional diameter D2 is preferably equal to or less than 3.0 mm, more preferably equal to or less than 2.5 mm, and still more preferably equal to or less than 2.3 mm.
- the cross-sectional diameter D2 is 1.9 mm.
- the difference (D2 ⁇ D1) is preferably equal to or greater than 0.1 mm, more preferably equal to or greater than 0.2 mm, and still more preferably equal to or greater than 0.3 mm.
- the difference (D2 ⁇ D1) is preferably 1.0 mm or less, more preferably 0.8 mm or less, and further preferably 0.6 mm or less. In the above embodiment, the difference (D2 ⁇ D1) is 0.4 mm.
- the ratio (D2 / D1) is preferably equal to or greater than 1.05, more preferably equal to or greater than 1.1, and still more preferably equal to or greater than 1.2. If the cross-sectional diameter D2 is excessive or the cross-sectional diameter D1 is excessively small, the overall performance of the watertightness and the wearability is deteriorated. In this respect, the ratio (D2 / D1) is preferably equal to or less than 2.0, more preferably equal to or less than 1.5, and still more preferably equal to or less than 1.3. In the above embodiment, the ratio (D2 / D1) is 1.27.
- the second annular packing s2 on the upstream side has a large cross-sectional diameter D2, it is easily deformed when the water purification cartridge PC1 is removed. Therefore, the second annular packing s2 is unlikely to cause a decrease in detachability.
- the first annular packing s1 on the downstream side has a small cross-sectional diameter D1, it is difficult to deform when removing the water purification cartridge PC1. Therefore, the 1st annular packing s1 tends to become a factor which reduces removability. Therefore, the detachability is improved by making the width W1 related to the first annular packing s1 which is difficult to deform larger than the width W2.
- width W1 and width W2 are enlarged, the axial direction length of the connection edge part 152 will become large, and will cause the lengthening of the water purification cartridge PC1 or the fall of water purification performance (length of water purification material). These disadvantages are suppressed by making the width W2 smaller than the width W1.
- the width W1 is preferably 0.7 mm or more, more preferably 0.9 mm or more, and even more preferably 1.1 mm or more. From the viewpoint of suppressing the lengthening of the water purification cartridge PC1 and the deterioration of the water purification performance, the width W1 is preferably 2.0 mm or less, more preferably 1.8 mm or less, and even more preferably 1.5 mm or less. In the present embodiment, the width W1 is 1.3 mm.
- the width W2 is preferably 0.2 mm or more, more preferably 0.3 mm or more, and still more preferably 0.4 mm or more. From the viewpoint of suppressing the lengthening of the water purification cartridge PC1 and the deterioration of the water purification performance, the width W2 is preferably 1.5 mm or less, more preferably 1.1 mm or less, and still more preferably 0.8 mm or less. In the present embodiment, the width W2 is 0.6 mm.
- the difference (W1 ⁇ W2) is preferably 0.1 mm or more, more preferably 0.3 mm or more, and further preferably 0.5 mm or more.
- the difference (W1 ⁇ W2) is preferably 1.5 mm or less, more preferably 1.2 mm or less, and still more preferably 0.8 mm or less.
- the difference (W1-W2) is 0.7 mm.
- the ratio (W2 / W1) is preferably equal to or greater than 0.2, more preferably equal to or greater than 0.3, and still more preferably equal to or greater than 0.4. From the viewpoint of suppressing the excessive width W2 and the excessive width W1, the ratio (W2 / W1) is preferably 0.9 or less, more preferably 0.8 or less, and still more preferably 0.6 or less. In the present embodiment, the ratio (W2 / W1) is 0.46.
- the outer surface of the front end portion 170 of the water purification cartridge PC1 has the recess 176 (see FIG. 9).
- the distal end portion 170 Since the first annular packing s1 is disposed at the distal end portion 170, the distal end portion 170 requires a predetermined axial length. Further, the first groove 172 is disposed in the tip portion 170, and the dimensional accuracy of the bottom surface 172a is an important factor for improving the sealing performance by the first annular packing s1.
- sink marks molding shrinkage
- This phenomenon can occur regardless of whether it is a thermoplastic resin or a thermosetting resin.
- sink marks may occur during cooling.
- sink marks may occur when the resin is cured.
- prescribed axial direction length is solid, the variation in the dimension between individuals will become large.
- the above-mentioned sink is suppressed by providing a cavity inside the packing arrangement portion in the radial direction, and variation in dimensions is also suppressed. Therefore, the dimensional accuracy of the bottom surface 172a of the first groove 172 is increased, and the sealing performance by the first annular packing s1 is improved.
- the recess located on the radially inner side of the packing arrangement portion can be provided on the outer surface of the tip portion 170 as in the case of the water purification cartridge PC1, but can also be provided on the inner surface of the tip portion 170.
- this recessed part will face the purified water flow path WJ. Purified water can flow into this recess and stay. In view of hygiene, it is not preferable that the purified water from which chlorine has been removed stay in this recess.
- the concave portion 176 is provided on the outer surface of the distal end portion 170. The recess 176 faces the raw water channel WG. It is raw water that stays in the recess 176. In this embodiment, the situation where the purified water from which chlorine was removed stays in the recess is avoided.
- the concave portion when the concave portion is provided on the inner surface of the distal end portion 170, the concave portion makes the shape of the flow path on the radially inner side of the purified water outlet hole 240 complicated, and turbulent flow is likely to occur. Due to this turbulent flow, the flow rate in the purified water outlet hole 240 can be reduced. Since the purified water passes through the purified water function part of the purified water cartridge PC1, the water pressure of the purified water passage WJ is lower than the water pressure of the raw water passage WG. When the flow rate at the purified water outlet hole 240 is reduced due to the turbulent flow, the flow rate of the purified water passage WJ is further reduced. In the present embodiment, such a situation is avoided.
- the shortest distance T is the shortest distance between the bottom surface 172a of the first groove 172 and the recess 176 (side surface 178). If the shortest distance T is too small, the strength may decrease and the sealing performance may decrease due to the deformation of the bottom surface 172a.
- the shortest distance T is preferably 0.5 mm or more, more preferably 1.0 mm or more, and further preferably 1.2 mm or more. If the shortest distance T is excessive, the above-mentioned sink becomes large.
- the shortest distance T is preferably 3.0 mm or less, more preferably 2.0 mm or less, and even more preferably 1.8 mm or less. In the above embodiment, the shortest distance T is 1.5 mm.
- the first valve 130 raw water cutoff valve
- the second valve 132 purified water cutoff valve
- the raw water flow path WG having a high water pressure is momentarily cut off, so that the water hammer or high water pressure is supplied from the first valve 130 (raw water cut-off valve) to the raw water flow path WG. Is transmitted upstream.
- the outer surface of the tip portion 170 faces the raw water flow path WG. (See FIG. 11).
- the water hammer or high water pressure acts on the tip portion 170, so that the water purification cartridge PC1 can swing. This oscillation can occur every time the water discharge is switched. By this swinging, the sticking of the packings s1 and s2 can be suppressed.
- the partition wall 190 is provided at the distal end portion 170.
- the partition wall 190 is impermeable to water.
- the partition wall 190 is provided in the position which cross
- the partition wall 190 may extend along the radial direction, but may not extend along the radial direction. In the above embodiment, the partition wall 190 extends along the radial direction. For this reason, the water hammer or high water pressure which acted on the partition wall 190 can be effectively converted into an axial force. This axial force can effectively swing the water purification cartridge PC1 in the axial direction (front-rear direction).
- the center line of the partition wall 190 may coincide with the center line z1 of the water purification cartridge PC1, but may not coincide with the center line z1 of the water purification cartridge PC1. In the above embodiment, the center line of the partition wall 190 coincides with the center line z1 of the water purification cartridge PC1. For this reason, the pressure which acted on the partition wall 190 can be effectively transmitted to the water purification cartridge PC1.
- the concave portion 176 is provided on the outer surface of the tip portion 170. Compared to a flat surface or the like having no recess, the recess 176 can efficiently capture water hammer or high water pressure. The recess 176 can promote the swinging of the water purification cartridge PC1. Therefore, the sticking of the packings s1 and s2 can be effectively suppressed.
- the raw water passage WG1 extends along the radial direction.
- the recess 176 can effectively capture water hammer or high water pressure in the raw water passage WG1 extending along the radial direction.
- the recess 176 has a side surface 178 and a bottom surface 180.
- the bottom surface 180 extends in the radial direction. Therefore, the water hammer or high water pressure that has acted on the bottom surface 180 can cause an axial swing.
- the side surface 178 extends in the axial direction. Therefore, the water hammer or high water pressure that has acted on the side surface 178 can cause rocking in the radial direction. Due to the swing in the two directions, the sticking of the packings s1 and s2 can be effectively suppressed.
- O-rings are used as the annular packings s1 and s2.
- the cross-sectional shape of this O-ring is a circle.
- the cross-sectional shape of the annular packing may not be circular.
- an O-ring having an elliptical cross section may be used as the annular packing.
- the annular packing is not limited to an O-ring.
- the cross-sectional shape of the annular packing is not limited.
- a rectangular packing having a square cross section, a U packing having a U cross section, a V packing having a V cross section, a Y packing having a Y cross section, an X packing having a X cross section may be used.
- an O-ring is preferable, and an O-ring having a circular cross section is particularly preferable in terms of the overall surface of the water purification cartridge, the peripheral member and the annular packing, and the securing of sealing performance (watertightness).
- the material of the connection end 152 is resin or metal. From the viewpoint of cost, when the material is a metal, the manufacturing method of the connection end 152 is preferably sintering, casting or forging. Resin is preferable to metal from the viewpoint of cost. Examples of this resin include thermoplastic resins and thermosetting resins. A thermoplastic resin that is easy to mold is preferred. From the viewpoint of moldability, polyoxymethylene (POM), polyphenylene sulfide (PPS), acrylonitrile butadiene styrene copolymer (ABS) and polypropylene (PP) are more preferable. From the viewpoint of moldability and cost, acrylonitrile butadiene styrene copolymer (ABS) and polypropylene (PP) are particularly preferred.
- POM polyoxymethylene
- PPS polyphenylene sulfide
- ABS acrylonitrile butadiene styrene copolymer
- PP polypropylene
- the material of the tip portion 170 may be resin or metal. From the viewpoint of cost, when the material is metal, the manufacturing method of the tip portion 170 is preferably sintering, casting or forging. Resin is preferable to metal from the viewpoint of cost. Examples of this resin include thermoplastic resins and thermosetting resins. A thermoplastic resin that is easy to mold is preferred. From the viewpoint of moldability, polyoxymethylene (POM), polyphenylene sulfide (PPS), acrylonitrile butadiene styrene copolymer (ABS) and polypropylene (PP) are more preferable. From the viewpoint of moldability and cost, acrylonitrile butadiene styrene copolymer (ABS) and polypropylene (PP) are particularly preferred.
- POM polyoxymethylene
- PPS polyphenylene sulfide
- ABS acrylonitrile butadiene styrene copolymer
- PP polypropylene
- the intermediate portion 150 has a transmission portion 151 through which water can permeate from the outer peripheral surface of the water purification cartridge PC1.
- the configuration of the intermediate unit 150 is not limited to this mode.
- the outer peripheral surface of the water purification cartridge PC1 may be formed of a non-water-permeable outer peripheral wall, and a transmission part may be provided inside the outer peripheral wall.
- the inflow of water from the rear end of the water purification cartridge PC1 may be allowed.
- an inlet can be provided at the upstream end (rear end) of the water purification cartridge PC1.
- This inflow port can be provided in the rear forming portion 154. Water can flow into the water purification cartridge PC1 from this inflow port, pass through the permeation portion, and reach the connection end portion 152.
- the water purification function unit is a permeation unit, and purified water is generated by allowing raw water to permeate through the permeation unit.
- transmission part is only an example of the water purification function part.
- the purified water may be generated without passing through the transmission part.
- the purified water cartridge can have a metal material, and purified water can also be generated by releasing metal ions having an effect of sterilization, antibacterial activity, sterilization, or bacterial growth suppression from the metal material.
- purified water is a concept including the generated water (1) and (2) below.
- the purified water in the present application is a concept including water generated by the following function A and / or function B.
- the water purification function unit in the present application is a concept including a function unit having the following function A and / or function B.
- the function A is one or more functions selected from the group consisting of A1, A2, A3, A4, and A5 below.
- A1 A function of adsorbing and removing substances in water using an adsorbent such as activated carbon.
- A2 A function of filtering substances in water using a filter medium.
- the filter medium is a filtration membrane such as a reverse osmosis membrane, an ultrafiltration membrane, a microfiltration membrane, a nanofiltration membrane, or a porous hollow fiber membrane, and a function of filtering substances in water using the filtration membrane.
- A3 A function of taking in and removing metal ions in water using an ion exchange resin or the like.
- A4 A function of releasing metal ions having an effect of sterilizing, antibacterial, sterilizing and / or inhibiting the growth of bacteria from a metal material.
- A5 A function of generating active oxygen by releasing metal ions from a metal material and incorporating the electrons generated along with the release of the metal ions into oxygen in water.
- water substances to be purified include chlorine, volatile organic compounds, pesticide substances, musty odor substances, and heavy metals.
- one or more selected from the group consisting of chlorine, volatile organic compounds, pesticide substances, musty odor substances and heavy metals are removed.
- chlorine is a concept including residual chlorine in tap water. This residual chlorine includes free residual chlorine and combined residual chlorine. Examples of free residual chlorine include hypochlorous acid and hypochlorite ions. Examples of bound residual chlorine include monochloramine, dichloramine, and trichloramine. When chlorine gas is dissolved in water for the purpose of disinfecting water, these residual chlorines can be generated.
- volatile organic compound examples include chloroform, bromodichloromethane, dibromochloromethane, bromoform, tetrachloroethylene, trichloroethylene, 1,1,1-trichloroethane, total trihalomethane, and the like.
- one or more selected from the group consisting of chloroform, bromodichloromethane, dibromochloromethane, broroform, tetrachloroethylene, trichloroethylene, 1,1,1-trichloroethane, total trihalomethane is removed.
- Examples of the agrochemical substance include 2-chloro-4,6-bistilamino-1,3,5-triazine.
- 2-Chloro-4,6-bisylamino-1,3,5-triazine is preferably removed.
- Examples of the musty odor substance include 2-methylisoborneol, geosmin, phenols and the like. Preferably, one or more selected from the group consisting of 2-methylisoborneol, geosmin and phenols is removed.
- the heavy metal examples include lead, mercury, copper, arsenic, and cadmium.
- the heavy metal Preferably, one or more selected from the group consisting of lead, mercury, copper, arsenic and cadmium is removed.
- Zinc ions and silver ions are exemplified as the metal ions in the function A4.
- one or more selected from the group consisting of zinc ions and silver ions are released.
- bacteria in the function A4 examples include Escherichia coli and staphylococci, and also include miscellaneous bacteria defined (inclusive) as general bacteria. It is preferred that one or more of these bacteria is deterred, antibacterial, sterilized, or proliferated.
- the active oxygen in the function A5 can decompose organic substances such as bacteria.
- this bacterium include Escherichia coli and staphylococci, and also include miscellaneous bacteria defined (inclusive) as general bacteria. It is preferred that one or more of those bacteria be degraded.
- a water purification cartridge having the function A1 is preferable.
- it can also be set as the water purification cartridge provided with one or more functions chosen from function A2, A3, A4, and A5 and function A1.
- Function B is “Six water purifier” in Appendix 2 (related to Article 2) of the General Goods Industrial Product Quality Labeling Regulations (Revised Date: March 30, 2017 / Effective Date: April 1, 2017) This is a function of performing water purification using a specified filter medium and / or medium.
- the water purification cartridge is the “Six Purified Water” in Appendix 2 (related to Article 2) of the General Goods Industrial Goods Quality Labeling Regulations (Revision Date: March 30, 2017 / Effective Date: April 1, 2017). It is preferable to provide the water purification function part which performs water purification using the filter medium and / or medium which are defined in a "container".
- the water purification function part which has the said function A and / or the function B may comprise some water purification flow paths, may be arrange
- the water purification cartridge may be an integral type in which the whole is integrated so as not to be separated, or a composite type constituted by a plurality of members that can be separated from each other.
- the composite type may have, for example, an adapter member and a cartridge main body.
- the adapter member may be connectable to the cartridge body or may not be connectable.
- the adapter member may be mountable on the cartridge body or may not be mountable on the cartridge body.
- the adapter member may be detachably attached to the cartridge body or may be detachably attached.
- the function of the adapter member is not limited.
- the adapter member may have a function related to the operability of the operation unit (push button) 114.
- the configurations of the adapter member and the cartridge main body are not limited, and may be any of the following configurations B1 to B4, for example.
- B1 A configuration in which the adapter member is attached to the cartridge attachment portion in a state where the adapter member is attached to the cartridge body.
- B2 A configuration in which the adapter member is first mounted on the cartridge mounting portion, and then the cartridge body is mounted on the adapter member.
- B3 A configuration in which the adapter member is mounted on a part of the cartridge mounting portion and the cartridge body is mounted on the other portion of the cartridge mounting portion.
- B4 A configuration in which the adapter member is first mounted on a part of the cartridge mounting portion, and then the cartridge body is mounted on the adapter member and the other portion of the cartridge mounting portion.
- the adapter member may be configured to be detachably attached to the cartridge mounting portion, or may be configured to be detachably attached.
- the adapter member is preferably removably attached to the cartridge mounting portion.
- the purified water outlet hole has an outlet opening edge;
- the outlet opening edge has a radially inner edge and a radially outer edge;
- the straight line L2 is The water purification cartridge according to appendix 1, which is inclined so as to go radially outward as going downstream.
- Appendix 3 The water purification cartridge according to appendix 1 or 2, wherein the water purification outlet hole penetrates in the axial direction.
- connection end portion has a first groove in which the first annular packing is disposed and a second groove in which the second annular packing is disposed; A width M1 of the first groove is larger than the cross-sectional diameter D1; A width M2 of the second groove is larger than the cross-sectional diameter D2, The water purification cartridge according to appendix 4, wherein the difference (M1-D1) is larger than the difference (M2-D2).
- Appendix 6 It has a purification material that can remove chlorine,
- the connecting end has a water-impermeable tip where the first annular packing is disposed;
- the material of the tip is resin,
- the inner surface of the tip portion faces the water purification flow path,
- the outer surface of the tip portion faces the raw water flow path,
- the outer surface of the tip has a recess,
- the water purification cartridge according to any one of appendices 1 to 5, wherein a cavity formed by the recess is present on a radially inner side of the first annular packing.
- [Appendix 7] A discharge port; Raw water flow path, A water purification channel, A switching mechanism for switching between the raw water channel and the purified water channel; A water purification cartridge for producing the purified water in the purified water flow path; A water purification cartridge mounting portion on which the water purification cartridge is disposed; Have The water purification cartridge mounting part has a connection receiving part connected to the water purification cartridge, The water purification cartridge has a connection end connected to the connection receiving portion, The connection end is It has a purified water outlet hole, a first annular packing located on the downstream side of the purified water outlet hole, and a second annular packing located on the upstream side of the purified water outlet hole, A water discharge head with a water purifying function, wherein an outer diameter of the first annular packing is smaller than an outer diameter of the second annular packing.
- a faucet device comprising the water discharge head with a water purifying function according to appendix 7.
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Abstract
Description
図13は、特許第6186059号公報の図2の部分拡大図である。この実施形態では、浄水器用カートリッジの接続筒部10aの外周面に、2つのOリング13が配置されている。下流側のOリング13aの外径は、上流側のOリング13bの外径に等しい。出口10eは、カートリッジ受け11の浄水受け入れ口11aに合致する位置にある。出口10eは、径方向に延びている。
図1は、一実施形態に係る水栓装置102の斜視図である。水栓装置102は、流し台(図示されず)に取り付けられている。図1では、視認されない部分、すなわち、流し台の内部にある部分の記載は省略されている。なお、水栓装置102の設置場所として、流し台の他、洗面台及び浴室が例示される。
浄水カートリッジPC1では、下流側に位置する第1環状パッキンs1の外径G1が、上流側に位置する第2環状パッキンs2の外径G2よりも小さい(図9参照)。
図11が示すように、浄水出口孔240(出口開口縁242)は、開口傾斜角度θを有する。
前述の通り、浄水出口孔240は軸方向に貫通している(図12の矢印y1参照)。このため、水流が隙間280が入り込みやすく、前述の堆積物抑制効果が更に高まる。また、浄水出口孔240を通過する水が軸方向に流れやすいので、前述の流路抵抗低減効果が更に高まる。
前述の通り、第1環状パッキンs1の断面直径D1は、第2環状パッキンs2の断面直径D2よりも小さい。
前述の通り、幅W1は、幅W2よりも大きい。換言すれば、差(M1-D1)は、差(M2-D2)よりも大きい(図9参照)。
前述の通り、浄水カートリッジPC1の先端部170の外面は、凹部176を有している(図9参照)。
(1)水中の物質又はイオンなどが吸着材又はろ過膜などで取り除かれた生成水。
(2)除菌などの機能を水に与える為に金属イオンを水に含ませるなど、水に金属イオン、電子、物質などを含ませて水に有益な機能を付与させた生成水。
機能Aとは、以下のA1、A2、A3、A4及びA5からなる群から選択される1以上の機能である。
A1:活性炭などの吸着材を使用して、水中の物質を吸着して取り除く機能。
A2:ろ材を用いて水中の物質をろ過する機能。好ましくは、このろ材が逆浸透膜、限外ろ過膜、精密ろ過膜、ナノろ過膜、多孔質中空繊維膜などのろ過膜とされ、このろ過膜を使用して水中の物質をろ過する機能。
A3:イオン交換樹脂などを使用して、水中の金属イオンなどを取り込んで除去する機能。
A4:金属材から除菌、抗菌、殺菌、及び/又は、菌の増殖を抑止する効果を有する金属イオンを放出する機能。
A5:金属材から金属イオンを放出させると共に、この金属イオンの放出に伴って発生する電子を水中の酸素に取り込ませることによって活性酸素を生成させる機能。
機能Bは、雑貨工業品品質表示規程(改正日:平成29年3月30日/施行日:平成29年4月1日)の別表第二(第二条関連)の「六 浄水器」に定められるろ材及び/又は媒体を使用して浄水を行う機能である。言い換えると、浄水カートリッジは、雑貨工業品品質表示規程(改正日:平成29年3月30日/施行日:平成29年4月1日)の別表第二(第二条関連)の「六 浄水器」に定められるろ材及び/又は媒体を使用して浄水を行う浄水機能部を備えるのが好ましい。
B1:アダプター部材がカートリッジ本体に装着された状態で、カートリッジ装着部に装着する構成。
B2:先にアダプター部材をカートリッジ装着部に装着して、次にカートリッジ本体をアダプター部材に装着する構成。
B3:アダプター部材をカートリッジ装着部の一部に装着し、カートリッジ本体をカートリッジ装着部の他部に装着する構成。
B4:先にアダプター部材をカートリッジ装着部の一部に装着し、次にカートリッジ本体をアダプター部材及びカートリッジ装着部の他部に装着する構成。
[付記1]
浄水機能付き吐水ヘッドの浄水カートリッジ装着部に配置される浄水カートリッジであって、
前記浄水カートリッジ装着部の接続受け部に接続される接続端部を有しており、
前記接続端部が、浄水出口孔と、前記浄水出口孔よりも下流側に位置する第1環状パッキンと、前記浄水出口孔よりも上流側に位置する第2環状パッキンとを有しており、
前記第1環状パッキンの外径G1が、前記第2環状パッキンの外径G2よりも小さい浄水カートリッジ。
[付記2]
前記浄水出口孔が、出口開口縁を有しており、
前記出口開口縁が、径方向内側縁と、径方向外側縁とを有しており、
前記浄水カートリッジの中心線に沿った断面において、前記径方向内側縁と前記径方向外側縁とを通る直線がL1とされ、前記直線L1に垂直な直線がL2とされるとき、前記直線L2は、下流側にいくに従って径方向外側にいくように傾斜している付記1に記載の浄水カートリッジ。
[付記3]
前記浄水出口孔が、軸方向に貫通している付記1又は2に記載の浄水カートリッジ。
[付記4]
前記第1環状パッキンの断面直径D1が、前記第2環状パッキンの断面直径D2よりも小さい付記1から3のいずれか1項に記載の浄水カートリッジ。
[付記5]
前記接続端部が、前記第1環状パッキンが配置されている第1溝と、前記第2環状パッキンが配置されている第2溝とを有しており、
前記第1溝の幅M1が、前記断面直径D1よりも大きく、
前記第2溝の幅M2が、前記断面直径D2よりも大きく、
差(M1-D1)が、差(M2-D2)よりも大きい付記4に記載の浄水カートリッジ。
[付記6]
塩素を除去しうる浄化材を有しており、
前記接続端部が、前記第1環状パッキンが配置された非通水性の先端部を有しており、
前記先端部の材質が、樹脂であり、
前記先端部の内面が、前記浄水流路に面しており、
前記先端部の外面が、前記原水流路に面しており、
前記先端部の外面が、凹部を有しており、
前記凹部により形成された空洞が、前記第1環状パッキンの径方向内側に存在している付記1から5のいずれか1項に記載の浄水カートリッジ。
[付記7]
吐出口と、
原水流路と、
浄水流路と、
前記原水流路と前記浄水流路との切り換えを行う切換機構と、
前記浄水流路において前記浄水を生成する浄水カートリッジと、
前記浄水カートリッジが配置される浄水カートリッジ装着部と、
を有しており、
前記浄水カートリッジ装着部が、前記浄水カートリッジと接続する接続受け部を有しており、
前記浄水カートリッジが、前記接続受け部に接続される接続端部を有しており、
前記接続端部が、
浄水出口孔と、前記浄水出口孔よりも下流側に位置する第1環状パッキンと、前記浄水出口孔よりも上流側に位置する第2環状パッキンとを有しており、
前記第1環状パッキンの外径が、前記第2環状パッキンの外径よりも小さい浄水機能付き吐水ヘッド。
[付記8]
付記7に記載の浄水機能付き吐水ヘッドを備えた水栓装置。
104・・・本体部
106・・・レバーハンドル
108・・・吐水ヘッド
110・・・導水部
114・・・操作部
134・・・浄水カートリッジ装着部
138・・・接続受け部
152・・・接続端部
154・・・後方形成部
160・・・第1円筒部
162・・・第2円筒部
164・・・第3円筒部
172・・・第1溝
174・・・先端面
176・・・凹部
178・・・凹部の側面
180・・・凹部の底面
190・・・仕切り壁
210・・・第2溝
240・・・浄水出口孔
242・・・出口開口縁
254・・・第1受け円筒部
256・・・第2受け円筒部
PC1・・・浄水カートリッジ
s1・・・第1環状パッキン
s2・・・第2環状パッキン
WJ・・・浄水流路
WJ1・・・浄水通路
WG・・・原水流路
WG1・・・原水通路
Claims (8)
- 浄水機能付き吐水ヘッドの浄水カートリッジ装着部に配置される浄水カートリッジであって、
前記浄水カートリッジ装着部の接続受け部に接続される接続端部を有しており、
前記接続端部が、浄水出口孔と、前記浄水出口孔よりも下流側に位置する第1環状パッキンと、前記浄水出口孔よりも上流側に位置する第2環状パッキンとを有しており、
前記第1環状パッキンの外径G1が、前記第2環状パッキンの外径G2よりも小さい浄水カートリッジ。 - 前記浄水出口孔が、出口開口縁を有しており、
前記出口開口縁が、径方向内側縁と、径方向外側縁とを有しており、
前記浄水カートリッジの中心線に沿った断面において、前記径方向内側縁と前記径方向外側縁とを通る直線がL1とされ、前記直線L1に垂直な直線がL2とされるとき、前記直線L2は、下流側にいくに従って径方向外側にいくように傾斜している請求項1に記載の浄水カートリッジ。 - 前記浄水出口孔が、軸方向に貫通している請求項1又は2に記載の浄水カートリッジ。
- 前記第1環状パッキンの断面直径D1が、前記第2環状パッキンの断面直径D2よりも小さい請求項1から3のいずれか1項に記載の浄水カートリッジ。
- 前記接続端部が、前記第1環状パッキンが配置されている第1溝と、前記第2環状パッキンが配置されている第2溝とを有しており、
前記第1溝の幅M1が、前記断面直径D1よりも大きく、
前記第2溝の幅M2が、前記断面直径D2よりも大きく、
差(M1-D1)が、差(M2-D2)よりも大きい請求項4に記載の浄水カートリッジ。 - 塩素を除去しうる浄化材を有しており、
前記接続端部が、前記第1環状パッキンが配置された非通水性の先端部を有しており、
前記先端部の材質が、樹脂であり、
前記先端部の内面が、前記浄水流路に面しており、
前記先端部の外面が、前記原水流路に面しており、
前記先端部の外面が、凹部を有しており、
前記凹部により形成された空洞が、前記第1環状パッキンの径方向内側に存在している請求項1から5のいずれか1項に記載の浄水カートリッジ。 - 吐出口と、
原水流路と、
浄水流路と、
前記原水流路と前記浄水流路との切り換えを行う切換機構と、
前記浄水流路において前記浄水を生成する浄水カートリッジと、
前記浄水カートリッジが配置される浄水カートリッジ装着部と、
を有しており、
前記浄水カートリッジ装着部が、前記浄水カートリッジと接続する接続受け部を有しており、
前記浄水カートリッジが、前記接続受け部に接続される接続端部を有しており、
前記接続端部が、
浄水出口孔と、前記浄水出口孔よりも下流側に位置する第1環状パッキンと、前記浄水出口孔よりも上流側に位置する第2環状パッキンとを有しており、
前記第1環状パッキンの外径が、前記第2環状パッキンの外径よりも小さい浄水機能付き吐水ヘッド。 - 請求項7に記載の浄水機能付き吐水ヘッドを備えた水栓装置。
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