Kitchen shower head with filtering function and pull-out faucet

Abstract

The application discloses a kitchen shower head with a filtering function, which comprises a shower shell, a filter core assembly arranged in the shower shell, a water outlet panel assembly installed at the bottom of the shower shell, a switching device arranged on the shower shell and a threaded structure arranged on the filter core assembly. When the switching device is rotated, the threaded structure can drive the sealing device on the filter core assembly to move up and down, so that raw water entering from a water inlet port is switched between a flow channel passing through the filter core and a flow channel not passing through the filter core.

Description

Technical Field

[0001] This invention relates to kitchen appliances, and more particularly to a kitchen shower head with a filter function and a pull-out faucet. Background Technology

[0002] Kitchen water is primarily used for washing fruits, vegetables, and tableware, as well as for cooking. To ensure the cleanliness of kitchen water, many households filter it before use. Some households further heat the filtered water using a heating device to obtain hot water. However, currently, the filtration device is generally installed before the heating device on the household water supply line, and the water often introduces new impurities as it passes through the heating device. Furthermore, replacing the filter cartridges in current filtration systems is relatively complicated and sometimes requires tools. Summary of the Invention

[0003] In view of the above-mentioned deficiencies of the prior art, the technical problem to be solved by the present invention is to provide an improved kitchen shower head with a filter function and a pull-out faucet.

[0004] To achieve the above objectives, the present invention first provides a kitchen shower head with a filtering function, including a shower head housing with a water inlet at the top for connection to a faucet or hose; a filter element assembly disposed within the shower head housing, including a filter element upper cover, a filter element, and a filter element lower cover, wherein the filter element is a hollow cylinder with a purified water chamber inside and a raw water chamber outside; the filter element assembly can be installed and removed as a whole relative to the shower head housing; a handle for removing the filter element assembly is provided at the bottom of the filter element lower cover; and a water outlet panel assembly installed at the bottom of the shower head housing.

[0005] Furthermore, the filter cartridge top cover seals the top of the purified water chamber inside the filter cartridge, while the filter cartridge bottom cover connects the purified water chamber to the water outlet panel assembly; a sealing ring is provided outside the filter cartridge bottom cover, forming a raw water chamber that communicates with the water inlet between the sealing ring, the filter cartridge, and the shower head housing.

[0006] Furthermore, the water outlet panel assembly includes a gasket, a water outlet panel, and a water outlet panel cover.

[0007] Furthermore, the water outlet panel has multiple water outlet holes arranged in multiple concentric circles, and the diameter of the water outlet hole on the water inlet side is larger than the diameter on the water outlet side.

[0008] Furthermore, the water outlet panel assembly is installed at the bottom of the shower head housing via snap-fit ​​components located on the inner wall of the water outlet panel cover and the outer edge of the bottom of the shower head housing.

[0009] Furthermore, it also includes a switching device installed on the shower head housing and a threaded structure installed on the filter element assembly. The switching device is configured to drive the threaded structure to move the sealing device on the filter element assembly up and down when it is rotated, thereby allowing the raw water entering from the inlet to switch between two flow channels: one through the filter element and one without.

[0010] Furthermore, the upper part of the shower head housing is equipped with a switching ring, and a threaded structure is provided between the switching ring and the filter element cover. The filter element cover and the filter element are in a movable fit. When the switching ring is turned, the threaded structure allows the filter element cover to move up and down between a first position and a second position relative to the filter element. The filter element cover has multiple outer ring openings corresponding to the raw water chamber and multiple inner ring openings corresponding to the purified water chamber. When the filter element cover moves to the first position, the inner ring openings will abut against the lower sealing gasket, while the outer ring openings are disengaged from the upper sealing gasket. Therefore, at this time, the raw water chamber of the filter element is in the open state, while the purified water chamber is in the closed state. The raw water flowing in from the inlet enters the purified water chamber after being filtered by the filter element, and then flows out through the water outlet panel assembly. When the filter element cover moves to the second position, the outer ring opening will abut against the upper sealing gasket, while the inner ring opening is separated from the lower sealing gasket. At this time, the purified water chamber of the filter element is in the open state, while the raw water chamber is in the closed state. The raw water flowing in from the inlet directly enters the purified water chamber and flows out through the water outlet panel assembly.

[0011] Alternatively, a rotating sleeve is provided between the lower part of the shower head housing and the lower cover of the filter element. The lower edge of the lower cover of the filter element and the inner surface of the rotating sleeve are provided with mutually cooperating guide positioning strips and guide positioning grooves. The water outlet panel cover is installed on the rotating sleeve via a snap-fit. Rotating the water outlet panel cover causes the rotating sleeve to rotate as well, and the rotating sleeve drives the filter element to rotate via the guide strips and guide grooves. A threaded structure is provided between the upper cover of the filter element and the shower head housing. Due to the effect of the threaded structure, the entire filter element assembly moves up and down simultaneously while rotating. The movement allows the sealing ring on the side edge of the filter element's lower cover to switch between a sealed position and a disengaged position. When the sealing ring is in the sealed position, it forms a seal with the inner wall of the rotating sleeve. Water entering the raw water chamber flows through the filter element, is filtered, and then enters the purified water chamber of the filter element before flowing out through the outlet panel. When the sealing ring is in the disengaged position, it disengages from the inner wall of the rotating sleeve, releasing the seal. Water entering the raw water chamber flows directly through the flow channel between the side edge of the filter element's lower cover and the inner wall of the rotating sleeve, and then flows out through the outlet panel.

[0012] Alternatively, the shower head housing has a switching ring on the upper part, with a threaded structure between the switching ring and the filter element cover. The filter element cover and the filter element are tightly fitted together. A sleeve is provided between the lower part of the shower head housing and the lower cover of the filter element. The lower edge of the lower cover of the filter element and the inner side of the sleeve have mutually cooperating guide positioning strips and guide positioning grooves. By turning the switching ring, the sealing ring on the side edge of the lower cover of the filter element can move up and down between a sealing position and a disengaged position under the action of the threaded structure. When the sealing ring is in the sealing position, the sealing ring forms a seal with the inner wall of the sleeve. The water entering the raw water chamber flows through the filter element, is filtered, enters the clean water chamber of the filter element, and then flows out through the water outlet panel. When the sealing ring is in the disengaged position, the sealing ring disengages from the inner wall of the rotating sleeve, the seal is released, and the water entering the raw water chamber flows directly through the flow channel between the side edge of the lower cover of the filter element and the inner wall of the sleeve, and flows out through the water outlet panel.

[0013] Alternatively, the upper part of the shower head housing is provided with a switching ring, and a first thread structure is provided between the inner side of the switching ring and the side edge of the filter element cover. The filter element cover and the filter element are fastened together. A rotating sleeve is provided between the lower part of the shower head housing and the lower cover of the filter element. The lower side edge of the lower cover of the filter element and the inner side of the rotating sleeve are provided with a mutually cooperating second thread structure. The water outlet panel cover is installed on the rotating sleeve by a snap fastener. When the switching ring is turned or the water outlet panel cover is rotated to drive the rotating sleeve to rotate, the first thread structure and the second thread structure work together to achieve the desired effect. This allows the sealing ring located on the upper side edge of the filter element's lower cover to switch between a sealing position and a disengaged position. When the sealing ring is in the sealing position, it forms a seal with the inner wall of the rotating sleeve. Water entering the raw water chamber flows through the filter element, is filtered, and then enters the purified water chamber of the filter element before flowing out through the outlet panel. When the sealing ring is in the disengaged position, it disengages from the inner wall of the rotating sleeve, releasing the seal. Water entering the raw water chamber flows directly through the flow channel between the side edge of the filter element's lower cover and the inner wall of the rotating sleeve, and then flows out through the outlet panel.

[0014] The present invention also provides a pull-out faucet, characterized in that it includes a kitchen shower head with a filtering function and a pull-out hose. The kitchen shower head includes a shower head housing with a water inlet at the top for connection to the hose; a filter element assembly disposed within the shower head housing, including a filter element upper cover, a filter element, and a filter element lower cover, wherein the filter element is a hollow cylinder with a purified water chamber inside and a raw water chamber outside; the filter element assembly can be installed and removed as a whole relative to the shower head housing; a handle for removing the filter element assembly is provided at the bottom of the filter element lower cover; and a water outlet panel assembly installed at the bottom of the shower head housing.

[0015] Furthermore, the filter cartridge top cover seals the top of the purified water chamber inside the filter cartridge, while the filter cartridge bottom cover connects the purified water chamber to the water outlet panel assembly; a sealing ring is provided outside the filter cartridge bottom cover, forming a raw water chamber that communicates with the water inlet between the sealing ring, the filter cartridge, and the shower head housing.

[0016] Furthermore, the water outlet panel assembly includes a gasket, a water outlet panel, and a water outlet panel cover. Furthermore, the water outlet panel has multiple water outlet holes arranged in multiple concentric circles, and the diameter of the water outlet hole on the water inlet side is larger than the diameter on the water outlet side.

[0017] Furthermore, the water outlet panel assembly is installed at the bottom of the shower head housing via snap-fit ​​components located on the inner wall of the water outlet panel cover and the outer edge of the bottom of the shower head housing.

[0018] Furthermore, it also includes a switching device installed on the shower head housing and a threaded structure installed on the filter element assembly. The switching device is configured to drive the threaded structure to move the sealing device on the filter element assembly up and down when it is rotated, thereby allowing the raw water entering from the inlet to switch between two flow channels: one through the filter element and one without.

[0019] Furthermore, the upper part of the shower head housing is equipped with a switching ring, and a threaded structure is provided between the switching ring and the filter element cover. The filter element cover and the filter element are in a movable fit. When the switching ring is turned, the threaded structure allows the filter element cover to move up and down between a first position and a second position relative to the filter element. The filter element cover has multiple outer ring openings corresponding to the raw water chamber and multiple inner ring openings corresponding to the purified water chamber. When the filter element cover moves to the first position, the inner ring openings will abut against the lower sealing gasket, while the outer ring openings are disengaged from the upper sealing gasket. Therefore, at this time, the raw water chamber of the filter element is in the open state, while the purified water chamber is in the closed state. The raw water flowing in from the inlet enters the purified water chamber after being filtered by the filter element, and then flows out through the water outlet panel assembly. When the filter element cover moves to the second position, the outer ring opening will abut against the upper sealing gasket, while the inner ring opening is separated from the lower sealing gasket. At this time, the purified water chamber of the filter element is in the open state, while the raw water chamber is in the closed state. The raw water flowing in from the inlet directly enters the purified water chamber and flows out through the water outlet panel assembly.

[0020] Alternatively, a rotating sleeve is provided between the lower part of the shower head housing and the lower cover of the filter element. The lower edge of the lower cover of the filter element and the inner surface of the rotating sleeve are provided with mutually cooperating guide positioning strips and guide positioning grooves. The water outlet panel cover is installed on the rotating sleeve via a snap-fit. Rotating the water outlet panel cover causes the rotating sleeve to rotate as well, and the rotating sleeve drives the filter element to rotate via the guide strips and guide grooves. A threaded structure is provided between the upper cover of the filter element and the shower head housing. Due to the effect of the threaded structure, the entire filter element assembly moves up and down simultaneously while rotating. The movement allows the sealing ring on the side edge of the filter element's lower cover to switch between a sealed position and a disengaged position. When the sealing ring is in the sealed position, it forms a seal with the inner wall of the rotating sleeve. Water entering the raw water chamber flows through the filter element, is filtered, and then enters the purified water chamber of the filter element before flowing out through the outlet panel. When the sealing ring is in the disengaged position, it disengages from the inner wall of the rotating sleeve, releasing the seal. Water entering the raw water chamber flows directly through the flow channel between the side edge of the filter element's lower cover and the inner wall of the rotating sleeve, and then flows out through the outlet panel.

[0021] Alternatively, the shower head housing has a switching ring on the upper part, with a threaded structure between the switching ring and the filter element cover. The filter element cover and the filter element are tightly fitted together. A sleeve is provided between the lower part of the shower head housing and the lower cover of the filter element. The lower edge of the lower cover of the filter element and the inner side of the sleeve have mutually cooperating guide positioning strips and guide positioning grooves. By turning the switching ring, the sealing ring on the side edge of the lower cover of the filter element can move up and down between a sealing position and a disengaged position under the action of the threaded structure. When the sealing ring is in the sealing position, the sealing ring forms a seal with the inner wall of the sleeve. The water entering the raw water chamber flows through the filter element, is filtered, enters the clean water chamber of the filter element, and then flows out through the water outlet panel. When the sealing ring is in the disengaged position, the sealing ring disengages from the inner wall of the rotating sleeve, the seal is released, and the water entering the raw water chamber flows directly through the flow channel between the side edge of the lower cover of the filter element and the inner wall of the sleeve, and flows out through the water outlet panel.

[0022] Alternatively, the upper part of the shower head housing is provided with a switching ring, and a first thread structure is provided between the inner side of the switching ring and the side edge of the filter element cover. The filter element cover and the filter element are fastened together. A rotating sleeve is provided between the lower part of the shower head housing and the lower cover of the filter element. The lower side edge of the lower cover of the filter element and the inner side of the rotating sleeve are provided with a mutually cooperating second thread structure. The water outlet panel cover is installed on the rotating sleeve by a snap fastener. When the switching ring is turned or the water outlet panel cover is rotated to drive the rotating sleeve to rotate, the first thread structure and the second thread structure work together to achieve the desired effect. This allows the sealing ring located on the upper side edge of the filter element's lower cover to switch between a sealing position and a disengaged position. When the sealing ring is in the sealing position, it forms a seal with the inner wall of the rotating sleeve. Water entering the raw water chamber flows through the filter element, is filtered, and then enters the purified water chamber of the filter element before flowing out through the outlet panel. When the sealing ring is in the disengaged position, it disengages from the inner wall of the rotating sleeve, releasing the seal. Water entering the raw water chamber flows directly through the flow channel between the side edge of the filter element's lower cover and the inner wall of the rotating sleeve, and then flows out through the outlet panel.

[0023] The kitchen shower head and pull-out faucet with filtration function disclosed in this invention place the filter element at the very end of the household water supply, which can filter even hot water that has been heated by a device, and the filter element is easy to install and replace. Furthermore, it can be conveniently switched between filtration mode and direct current mode with one hand as needed.

[0024] The following will further explain the concept, specific structure, and technical effects of the present invention in conjunction with the accompanying drawings, so as to fully understand the purpose, features, and effects of the present invention. Attached Figure Description

[0025] Figure 1 This is a perspective view of a kitchen shower head with a filtering function according to the first embodiment of the present invention; Figure 2 This is an exploded view of a kitchen shower head with a filtering function according to the first embodiment of the present invention. Figure 3 This is an assembly diagram of the water outlet panel assembly and the shower head housing in the first embodiment of the present invention; Figure 4 This is a perspective view of the filter element in the first embodiment of the present invention; Figure 5 This is a perspective view of the filter element assembly in the first embodiment of the present invention; Figure 6 This is a schematic diagram of the bottom handle of the filter element cover in the first embodiment of the present invention; Figure 7 This is a perspective view of the water outlet panel in the first embodiment of the present invention; Figure 8This is a cross-sectional view of a kitchen shower head according to the first embodiment of the present invention; Figure 9 This is a schematic diagram of a pull-out faucet according to the first embodiment of the present invention; Figure 10 This is a cross-sectional view of a kitchen shower head in a filtered state according to the second embodiment of the present invention. Figure 11 This is a cross-sectional view of the kitchen shower head in a straight-through state according to the second embodiment of the present invention; Figure 12 This is a side view of the filter element cover in the second embodiment of the present invention; Figure 13 This is a top view of the filter element cover in the second embodiment of the present invention; Figure 14 This is a schematic diagram of a pull-out faucet in the second embodiment of the present invention; Figure 15 This is a cross-sectional view of a kitchen shower head in a filtered state according to the third embodiment of the present invention. Figure 16 This is a cross-sectional view of the kitchen shower head in a straight-through state according to the third embodiment of the present invention; Figure 17 This is a top view of the water outlet panel cover in the third embodiment of the present invention; Figure 18 This is a schematic diagram of a pull-out faucet according to the third embodiment of the present invention; Figure 19 This is a cross-sectional view of the kitchen shower head in the filtering state according to the fourth embodiment of the present invention. Figure 20 This is a cross-sectional view of the kitchen shower head in a straight-through state according to the fourth embodiment of the present invention; Figure 21 This is a schematic diagram of a pull-out faucet according to the fourth embodiment of the present invention; Figure 22 This is a cross-sectional view of the kitchen shower head in the filtering state according to the fifth embodiment of the present invention; Figure 23 This is a cross-sectional view of the kitchen shower head in a straight-through state according to the fifth embodiment of the present invention; Figure 24 This is a top view of the water outlet panel cover in the fifth embodiment of the present invention; Figure 25 This is a schematic diagram of a pull-out faucet according to the fifth embodiment of the present invention; Detailed Implementation The following description, with reference to the accompanying drawings, illustrates several preferred embodiments of the present invention to make its technical content clearer and easier to understand. The present invention can be embodied in many different forms, and the scope of protection of the present invention is not limited to the embodiments mentioned herein.

[0026] See the first embodiment of the kitchen shower head with filtering function according to the present invention. Figure 1-6 .

[0027] Figure 1 This is a 3D view of a kitchen shower head 100 with a filter function. Figure 1 As can be seen, the kitchen shower head 100 is bell-shaped. Figure 2 An exploded view of a 100mm kitchen shower head. Figure 2 As can be seen, the kitchen shower head 100 includes a shower head housing 101. The top of the shower head housing 101 has a threaded inlet 102. The threaded inlet 102 is used to connect a faucet or hose. A filter assembly is installed inside the shower head housing 101. The filter assembly includes a filter upper cover 103, a filter element 104, and a filter lower cover 105. An O-ring 106 is provided on the outside of the filter lower cover 105. The filter element 104 is a cylinder with a purified water chamber 114. The filter upper cover 103 seals the top of the purified water chamber 114 inside the filter element 104, while the filter lower cover 105 communicates with the purified water chamber 114. The assembled filter assembly forms a single unit, such as... Figure 5 As shown. The bottom of the filter element cover 105 is provided with a handle 111 for easy removal of the entire filter element assembly, as shown. Figure 6 As shown. The kitchen shower head 100 also includes a water outlet panel assembly disposed at the bottom of the shower head housing 101. The water outlet panel assembly includes a washer 107, a water outlet panel 108, and a water outlet panel cover 109. Figure 3 As shown, the water outlet panel assembly is installed at the bottom of the shower head housing 101 via a snap-fit ​​component 110 located on the inner wall of the water outlet panel cover 109 and the outer edge of the bottom of the shower head housing 101. Figure 7 As shown, the water outlet panel 108 has a plurality of water outlet holes 113. The water outlet holes 113 are arranged in a plurality of concentric circles. The diameter of the water outlet hole 113 on the water inlet side is larger than the diameter on the water outlet side. Figure 8 This is a cross-sectional view of a 100mm kitchen shower head. Figure 8 As shown, water entering from the top of the kitchen shower head 100 flows around the filter cartridge cover 103 and enters the raw water chamber 115 between the filter cartridge 104 and the shower head housing 101 through the circumferential gaps of the filter cartridge cover 103. Since the bottom of the raw water chamber 115 is sealed by the O-ring 106, the inner wall of the water outlet panel cover 109, the gasket 107, and the water outlet panel 108, the water only flows through the filter cartridge 104, enters the purified water chamber 114 of the filter cartridge 104 after filtration, and then flows out through the water outlet hole 113 via the filter cartridge cover 105 and the water outlet panel 108.

[0028] Furthermore, according to the first type of pull-out faucet of the present invention, such as... Figure 9 As shown, the pull-out faucet uses a kitchen shower head 100 with a filtering function according to the present invention.

[0029] See the second embodiment of the kitchen shower head with filtering function according to the present invention. Figure 10-14 .

[0030] like Figure 10-13 As shown, in this embodiment, a switching ring 206 is provided on the shower head housing. The switching ring 206 has an internal thread on its inner side, while the filter element cover 201 has an external thread on its side edge that mates with the internal thread of the switching ring 206. The filter element cover 201 and the filter element are in a movable fit. By moving the switching ring 206, the filter element cover 201 can move up and down between a first position and a second position relative to the filter element under the action of the threaded engagement 207. The filter element cover 201 has multiple outer ring openings 202 corresponding to the raw water chamber 208, and multiple inner ring openings 203 corresponding to the purified water chamber 209. Figure 10 As shown, when the filter cartridge cover 201 moves downward to the first position, the inner ring opening 203 abuts against the lower sealing gasket 205, while the outer ring opening 202 is disengaged from the upper sealing gasket 204. Therefore, the raw water chamber 208 of the filter cartridge is open, while the purified water chamber 209 is closed. Water flowing from the top of the showerhead enters the purified water chamber 209 after being filtered by the filter cartridge from the raw water chamber 208, and then flows out through the perforated panel. This method yields high-quality filtered water. Figure 11 As shown, when the filter cartridge cover 201 moves upward to the second position, the outer ring opening 202 abuts against the upper sealing gasket 204, while the inner ring opening 203 is disengaged from the lower sealing gasket 205. At this time, the purified water chamber 209 of the filter cartridge is open, while the original water chamber 208 is closed. The water flowing in from the top of the shower head flows directly through the purified water chamber 209 and out through the perforated panel without being filtered by the filter cartridge. Although this method does not involve filtration by the filter cartridge, the absence of the filter cartridge's flow resistance results in a larger flow rate and higher water pressure, making it suitable for general rinsing scenarios where water quality requirements are not high. Apart from the above, the other parts of the shower head in the second embodiment are the same as those in the first embodiment.

[0031] Furthermore, according to the second type of pull-out faucet of the present invention, such as... Figure 14 As shown, this pull-out faucet uses a kitchen shower head 200 with a filtering function according to the present invention. A switching ring 206 is provided on the upper part of the shower head housing. Users can switch the shower head between clean water and rinsing modes by rotating the switching ring 206. This is especially convenient for users who... Figure 14When holding the shower head (palm up), the user's thumb can easily reach and flick the switching ring 206, meaning that the user can switch the shower head's working state with one hand.

[0032] See the third embodiment of the kitchen shower head with filtering function according to the present invention. Figure 15-18 .

[0033] like Figure 15-17 As shown, the filter element upper cover 301 has an external thread on its side edge, while the shower head housing has a matching internal thread, forming a threaded fit 302. A rotating sleeve 304 is provided between the lower part of the shower head housing and the filter element lower cover 303. The lower side edge of the filter element lower cover 303 and the inner surface of the rotating sleeve 304 are provided with mutually cooperating guide positioning strips and guide positioning groove structures 306. The water outlet panel cover 309 is installed on the rotating sleeve 304 by a snap fastener. Rotating the water outlet panel cover 309 will cause the rotating sleeve 304 to rotate as well. The rotation of the rotating sleeve 304 will drive the filter element to rotate as well through the guide strips and guide positioning groove structures 306. Furthermore, due to the threaded fit 302 between the filter element upper cover 301 and the shower head housing, the filter element assembly moves up and down while rotating, causing the sealing ring 305 located on the upper side edge of the filter element lower cover 303 to switch between a sealing position and a disengaged position. When the sealing ring 305 is in such a position as Figure 15 When the sealing position is shown, the sealing ring 305 forms a seal with the inner wall of the rotating sleeve 304. Water entering the raw water chamber 307 only flows through the filter element, and after filtration, enters the purified water chamber 308 of the filter element, then flows out through the outlet panel. This method yields high-quality filtered water. When the user rotates the outlet panel cover 309, the sealing ring 305 rises to the position shown. Figure 16 When the device is in the disengaged position as shown, the sealing ring 305 disengages from the inner wall of the rotating sleeve 304, and the seal is released. The water flowing into the raw water chamber 307 no longer passes through the filter element into the purified water chamber 308, but instead flows directly through the flow channel between the side edge of the filter element lower cover 303 and the inner wall of the rotating sleeve 304, and exits through the water outlet panel. In this way, although the water is not filtered by the filter element, there is no flow resistance from the filter element, resulting in a larger flow rate and higher water pressure, suitable for general rinsing scenarios where water quality requirements are not high. Except for the above-mentioned parts, the other parts of the shower head in the third embodiment are the same as in the first embodiment.

[0034] Furthermore, according to the third type of pull-out faucet of the present invention, such as... Figure 18 As shown, this pull-out faucet uses a kitchen shower head 300 with a filtering function according to the present invention. Users can switch between the shower head's clean water and rinsing modes by rotating the water outlet panel cover 309. This is especially convenient for users who... Figure 18When the shower head is held in reverse (palm down), the user's thumb can easily reach and move the water outlet panel cover 309, meaning that the user can switch the shower head's working state with one hand.

[0035] See the fourth embodiment of the kitchen shower head with filtering function according to the present invention. Figure 19-21 As shown.

[0036] like Figures 19-20 As shown, in this embodiment, a switching ring 402 is provided on the shower housing. The switching ring 402 has an internal thread on its inner side, while the side edge of the filter element cover 401 has an external thread that mates with the internal thread of the switching ring 402. The filter element cover 401 and the filter element are fastened together. A sleeve 405 is provided between the lower part of the shower housing and the lower filter element cover 403. The lower side edge of the lower filter element cover 403 and the inner surface of the sleeve 405 are provided with mutually cooperating guide positioning strips and guide positioning groove structures 406. By moving the switching ring 402, the filter element assembly can move up and down relative to the sleeve 405 between a sealed position and a disengaged position under the action of the threaded engagement 409. When the filter element assembly is in such a position... Figure 19 When the filter element is in the sealing position as shown, the sealing ring 404 located on the upper side edge of the filter element lower cover 403 forms a seal with the inner wall of the sleeve 405. Water entering the raw water chamber 407 only flows through the filter element, is filtered, enters the purified water chamber 408 of the filter element, and then flows out through the outlet panel. This method yields high-quality filtered water. When the user turns the switching ring 402, the filter element assembly is in the position shown... Figure 20 When the shower head is in the disengaged position shown, the sealing ring 404 disengages from the sleeve 405, and the seal is released. The water flowing into the raw water chamber 407 no longer passes through the filter element into the purified water chamber 408, but instead flows directly through the chamber between the side edge of the filter element lower cover 403 and the sleeve 405, and out through the water outlet panel. Although this method bypasses the filter element, it eliminates the flow resistance of the filter element, resulting in a larger flow rate and higher water pressure, suitable for general rinsing scenarios where water quality requirements are not high. Except for the above-mentioned parts, the other parts of the shower head in the fourth embodiment are the same as in the first embodiment.

[0037] Furthermore, according to the fourth type of pull-out faucet of the present invention, such as... Figure 21 As shown, this pull-out faucet uses a kitchen shower head 400 with a filtering function according to the present invention. A switching ring 402 is provided on the upper part of the shower head housing. Users can switch the shower head between clean water and rinsing modes by rotating the switching ring 402. This is especially convenient for users who... Figure 21 When holding the shower head (palm up), the user's thumb can easily reach and flick the switching ring 402, meaning that the user can switch the shower head's working state with one hand.

[0038] See the fifth embodiment of the kitchen shower head with filtering function according to the present invention. Figure 22-25 As shown.

[0039] like Figure 22-24 As shown, in this embodiment, a switching ring 503 is provided on the upper part of the shower head housing. The switching ring 503 has an internal thread on its inner side, while the side edge of the filter element cover 501 has an external thread that mates with the internal thread of the switching ring 503. The filter element cover 501 and the filter element are fastened together. A rotating sleeve 506 is provided between the lower part of the shower head housing and the lower filter element cover 504. The lower side edge of the lower filter element cover 504 and the inner surface of the rotating sleeve 506 have mating threaded structures 507. The water outlet panel cover 509 is attached to the rotating sleeve 506 by a snap-fit. When the switching ring 503 is turned or the water outlet panel cover 509 is rotated, thereby driving the rotating sleeve 506 to rotate, the sealing ring 505 located on the upper side edge of the lower filter element cover 504 switches between a sealing position and a disengaged position due to the action of the threaded structure 502 or the threaded structure 507. When the sealing ring 505 is in the following position... Figure 22 When the sealing position is as shown, the sealing ring 505 forms a seal with the inner wall of the rotating sleeve 506. Water entering the raw water chamber 510 only flows through the filter element, and after filtration, enters the purified water chamber 508 of the filter element, then flows out through the outlet panel. This method yields high-quality filtered water. When the sealing ring 505 rises to the position shown... Figure 23 When the device is in the disengaged position as shown, the sealing ring 505 disengages from the inner wall of the rotating sleeve 506, and the seal is released. The water flowing into the raw water chamber 510 no longer passes through the filter element into the purified water chamber 508, but instead flows directly through the chamber between the side edge of the filter element lower cover 504 and the inner wall of the rotating sleeve 506, and out through the water outlet panel. In this way, although the water is not filtered by the filter element, there is no flow resistance from the filter element, resulting in a larger flow rate and higher water pressure, suitable for general rinsing scenarios where water quality requirements are not high. Except for the above-mentioned parts, the other parts of the shower head in the fifth embodiment are the same as in the first embodiment.

[0040] Furthermore, according to the fifth type of pull-out faucet of the present invention, such as... Figure 25 As shown, the pull-out faucet uses a kitchen shower head 500 with a filter function according to the present invention. The upper part of the shower head housing is provided with a switching ring 503, and the lower part is provided with a rotatable water outlet panel cover 509. At this time, whether the user holds the shower head upright (palm up) or backward (palm down), the user can easily switch the working state of the shower head with one hand.

[0041] In this invention, raw water refers to water that has not been filtered by the filter element of this invention, and purified water refers to water that has been filtered by the filter element of this invention.

[0042] The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A kitchen shower head with a filtering function, characterized in that, include Shower head housing, the top of the shower head housing has a water inlet that can be connected to a faucet or hose; The filter cartridge assembly is housed within the shower head housing and includes an upper filter cover, a filter cartridge, and a lower filter cover. The filter cartridge is a hollow cylinder with a purified water chamber inside and a raw water chamber outside. The filter cartridge assembly can be installed and removed as a whole relative to the shower head housing. A handle for removing the filter cartridge assembly is provided at the bottom of the lower filter cover. A water outlet panel assembly is installed at the bottom of the shower head housing; the water outlet panel assembly includes a gasket, a water outlet panel, and a water outlet panel cover; the water outlet panel has multiple water outlet holes arranged in multiple concentric circles, and the diameter of the water outlet hole on the inlet side is larger than the diameter on the outlet side. It also includes a switching device installed on the shower head housing and a threaded structure installed on the filter element assembly. The switching device is configured to drive the threaded structure to move the sealing device on the filter element assembly up and down when it is rotated, thereby allowing the raw water entering from the inlet to switch between two flow channels: one with the filter element and one without. The upper part of the shower head housing has a switching ring. A first threaded structure is provided between the inner side of the switching ring and the side edge of the filter element cover. The filter element cover and the filter element are tightly fitted together. A rotating sleeve is provided between the lower part of the shower head housing and the lower filter element cover. A second threaded structure is provided between the lower side edge of the lower filter element cover and the inner side of the rotating sleeve. The water outlet panel cover is installed on the rotating sleeve by a snap-fit. When the switching ring is moved or the water outlet panel cover is rotated, thereby causing the rotating sleeve to rotate, the action of the first and second threaded structures causes… The sealing ring located on the upper side edge of the filter element's lower cover switches between a sealing position and a disengaged position. When the sealing ring is in the sealing position, it forms a seal with the inner wall of the rotating sleeve. Water entering the raw water chamber flows through the filter element, is filtered, and then enters the purified water chamber of the filter element before flowing out through the outlet panel. When the sealing ring is in the disengaged position, it disengages from the inner wall of the rotating sleeve, the seal is released, and water entering the raw water chamber flows directly through the flow channel between the side edge of the filter element's lower cover and the inner wall of the rotating sleeve, flowing out through the outlet panel.

2. The kitchen shower head with filtering function as described in claim 1, wherein, The top cover of the filter element seals the top of the purified water chamber inside the filter element, while the bottom cover of the filter element connects the purified water chamber to the water outlet panel assembly; a sealing ring is provided outside the bottom cover of the filter element, forming a raw water chamber that communicates with the water inlet between the sealing ring, the filter element and the shower head housing.

3. The kitchen shower head with filtering function as described in claim 1, wherein, The water outlet panel assembly is installed at the bottom of the shower head housing via snap-fit ​​components located on the inner wall of the water outlet panel cover and the outer edge of the bottom of the shower head housing.

4. A pull-out faucet, characterized in that, Includes a kitchen shower head with a filter and a pull-out hose. The kitchen shower head includes... Shower head housing, with a water inlet on the top for connection to a hose; The filter cartridge assembly is housed within the shower head housing and includes an upper filter cover, a filter cartridge, and a lower filter cover. The filter cartridge is a hollow cylinder with a purified water chamber inside and a raw water chamber outside. The filter cartridge assembly can be installed and removed as a whole relative to the shower head housing. A handle for removing the filter cartridge assembly is provided at the bottom of the lower filter cover. A water outlet panel assembly is installed at the bottom of the shower head housing; the water outlet panel assembly includes a gasket, a water outlet panel, and a water outlet panel cover; the water outlet panel has multiple water outlet holes arranged in multiple concentric circles, and the diameter of the water outlet hole on the inlet side is larger than the diameter on the outlet side. It also includes a switching device installed on the shower head housing and a threaded structure installed on the filter element assembly. The switching device is configured to drive the threaded structure to move the sealing device on the filter element assembly up and down when it is rotated, thereby allowing the raw water entering from the inlet to switch between two flow channels: one with the filter element and one without. The upper part of the shower head housing has a switching ring. A first threaded structure is provided between the inner side of the switching ring and the side edge of the filter element cover. The filter element cover and the filter element are tightly fitted together. A rotating sleeve is provided between the lower part of the shower head housing and the lower filter element cover. A second threaded structure is provided between the lower side edge of the lower filter element cover and the inner side of the rotating sleeve. The water outlet panel cover is installed on the rotating sleeve by a snap-fit. When the switching ring is moved or the water outlet panel cover is rotated, thereby causing the rotating sleeve to rotate, the action of the first and second threaded structures causes… The sealing ring located on the upper side edge of the filter element's lower cover switches between a sealing position and a disengaged position. When the sealing ring is in the sealing position, it forms a seal with the inner wall of the rotating sleeve. Water entering the raw water chamber flows through the filter element, is filtered, and then enters the purified water chamber of the filter element before flowing out through the outlet panel. When the sealing ring is in the disengaged position, it disengages from the inner wall of the rotating sleeve, the seal is released, and water entering the raw water chamber flows directly through the flow channel between the side edge of the filter element's lower cover and the inner wall of the rotating sleeve, flowing out through the outlet panel.

5. The pull-out faucet as described in claim 4, wherein, The top cover of the filter element seals the top of the purified water chamber inside the filter element, while the bottom cover of the filter element connects the purified water chamber to the water outlet panel assembly; a sealing ring is provided outside the bottom cover of the filter element, forming a raw water chamber that communicates with the water inlet between the sealing ring, the filter element and the shower head housing.

6. The pull-out faucet as described in claim 4, wherein, The water outlet panel assembly is installed at the bottom of the shower head housing via snap-fit ​​components located on the inner wall of the water outlet panel cover and the outer edge of the bottom of the shower head housing.

Images