Pull-out spray head structure for kitchen faucet

Abstract

A pull-out spray head structure for kitchen faucets includes a pull-out spray head having a switching valve. The switching valve has outer and inner flow channels separated by a partition portion. The switching valve has a main flow channel disposed between the outer and inner flow channels, two symmetrical first through-holes through which the main flow channel communicates with the outer flow channel, and two symmetrical second through-holes through which the main flow channel communicates with the inner flow channel. The main flow channel has therein a baffle. The switching valve has a push shaft pressable to push the baffle such that the baffle blocks the first or second through-holes. A valve cover rotatably fixed to the switching valve blocks the main flow channel. Water flows to the outer flow channel via first through-holes to be sprayed and to the inner flow channel via second through-holes to be dispensed.

Description

FIELD

[0001] The present disclosure relates to pull-out spray head structures for kitchen faucets, and more particularly to a pull-out spray head structure for a kitchen faucet, not only switching between different water dispensing modes with a single press of a button, but also featuring ease of installation and use.BACKGROUND

[0002] In our busy modern lifestyle, it is essential that kitchen appliances offer maximum convenience. Kitchen faucets nowadays come with pull-out structures to not only allow for easy washing of fruits and vegetables but also enable a user to pull out a pull-out spray head to conveniently adjust the sprinkling range. Considering the everyday home repair costs for users, a pull-out spray head structure for a kitchen faucet that is easy to assemble, install, and maintain is essential.

[0003] In view of this, the inventor of the disclosure came up with an idea for an invention. To this end, the inventor undertook a design process based on years of experience, conducted extensive discussions, built prototypes to be tested, and made amendments and improvements, culminating in the realization of the invention.SUMMARY

[0004] The disclosure provides a pull-out spray head structure for a kitchen faucet, switching between different water dispensing modes with a single press of a button, featuring ease of installation and use, and being convenient for a user to assemble and repair.

[0005] The disclosure provides a pull-out spray head structure for a kitchen faucet, comprising: a pull-out spray head having a spray head casing, the spray head casing receiving therein a switching valve, the switching valve having a bottom with an outer flow channel and an inner flow channel, with a first partition portion disposed between and configured to separate the outer flow channel and the inner flow channel, with a main flow channel disposed on a right side of the switching valve, wherein the switching valve has two symmetrical first through-holes for allowing the main flow channel to communicate with the outer flow channel and has two symmetrical second through-holes for allowing the main flow channel to communicate with the inner flow channel, wherein the first through-holes and the second through-holes are staggered at 90° intervals, with a baffle disposed in the main flow channel, with a waterproof gasket disposed between the baffle and the switching valve, the baffle being penetrated by two symmetrical flow channel holes, with two symmetrical waterproof edges disposed protrudingly at the baffle and configured to abut against the waterproof gasket, with an axial hole disposed on a left side of the switching valve and configured to communicate with the main flow channel, with a push shaft mounted inside the axial hole and having an end, the end having a button, with two snap-fixing grooves symmetrically, recessedly disposed at an opening of the main flow channel, with two snap-fixing edges symmetrically, protrudingly disposed at a periphery of a round valve cover, the valve cover rotating to allow the snap-fixing edges to be snap-fixed to the snap-fixing grooves, allowing the valve cover to conceal the opening of the main flow channel, with a spring disposed between the valve cover and the baffle, wherein pressing the button causes the push shaft to push and rotate the baffle by 90° to allow the baffle to abut against the waterproof gasket in coordination with the spring to not only allow the flow channel holes to communicate with the first through-holes but also allow the baffle to block the second through-holes or to not only allow the flow channel holes to communicate with the second through-holes but also allow the baffle to block the first through-holes, with an inlet channel disposed at a top of the switching valve and configured to communicate with the main flow channel, wherein the top of the switching valve and a pull-out water pipe are screwed to and mounted on a faucet, wherein a bottom of the switching valve is screwed and fastened to a spray head cover, the spray head cover having a water spraying channel and a water flow channel, with a second partition portion disposed between and configured to separate the water spraying channel and the water flow channel, with a water spraying portion mounted on an opening of the water spraying channel, with a water flow portion mounted on an opening of the water flow channel, with a water spraying ring mounted inside the water spraying channel, with a washer disposed between the water flow portion and the first partition portion and configured to precisely block gaps between the outer flow channel, the inner flow channel, the water spraying channel and the water flow channel, the water spraying portion having a plurality of water spraying heads for dispensing water, and the water spraying ring having a plurality of water spraying holes; wherein, after water has entered the main flow channel via the inlet channel, pressing the button enables the baffle to rotate to cause water to pass through the flow channel holes and the first through-holes and then enter the water spraying channel, allowing the water to be dispersed by the plurality of water spraying holes and the water spraying heads and sprinkled, alternatively, pressing the button enables the baffle to rotate to cause water to pass through the flow channel holes and the second through-holes and then enter the water flow channel, allowing the water to be discharged from the water flow portion.

[0006] Furthermore, the inlet channel has at least one check valve.

[0007] Furthermore, the water flow portion is a ripple generator.

[0008] The first objective of the disclosure is to allow a lateral side of the switching valve to have the main flow channel and the axial hole, allowing the baffle and the push shaft to be conveniently fit to the switching valve laterally. Thus, a user only needs to rotate the valve cover to allow the snap-fixing edges to be snap-fixed into the snap-fixing grooves and thus allow the valve cover to conceal the opening of the main flow channel. Therefore, not only is the pull-out spray head easy to assemble and install, but the valve cover can also be rotated to enter and exit the main flow channel such that blockages or dirt therein can be conveniently removed during a maintenance process.

[0009] The second objective of the disclosure is to not only allow the button to be disposed on a lateral surface of the pull-out spray head and thus can be easily pressed by the user to switch between different water dispensing modes but also allow the push shaft to push the baffle to cause the rotation thereof such that water can enter the main flow channel and then enter the water spraying channel to allow the water to be dispersed by the plurality of water spraying holes and the water spraying heads and sprinkled or cause water to enter the main flow channel and then enter the water flow channel, allowing the water to be discharged from the water flow portion (175), so as to achieve washing purposes through water spray or water flow.

[0010] The other objectives, advantages and novelty of the present invention are depicted with drawings and further described below.BRIEF DESCRIPTION OF THE DRAWINGS

[0011] FIG. 1 is a perspective view of the disclosure.

[0012] FIG. 2 is an exploded view of the disclosure.

[0013] FIG. 3 is a perspective view of a switching valve viewed from another angle according to the disclosure.

[0014] FIG. 4 is a cutaway view of switching valve of the disclosure.

[0015] FIG. 5 is a perspective view of a fully-installed state of the disclosure.

[0016] FIG. 6 is a schematic view of water spraying according to the disclosure.

[0017] FIG. 7 is a cross-sectional view taken along line A-A of FIG. 6 according to the disclosure.

[0018] FIG. 8 is a cross-sectional view taken along line B-B of FIG. 7 according to the disclosure.

[0019] FIG. 9 is a schematic view of switching between water flow dispensing modes according to the disclosure.

[0020] FIG. 10 is a schematic view of water flow dispensing according to the disclosure.

[0021] FIG. 11 is a schematic view of a check valve in the number of two according to the disclosure.DETAILED DESCRIPTION

[0022] Objectives, features, and advantages of the disclosure are herein illustrated with specific embodiments, depicted with drawings, and described below.

[0023] Referring to FIG. 1 through FIG. 8, the disclosure provides a pull-out spray head structure for a kitchen faucet, comprising a pull-out spray head (10). The pull-out spray head (10) has a spray head casing (11). The spray head casing (11) receives therein a switching valve (12). The bottom of the switching valve (12) has an outer flow channel (121) and an inner flow channel (122). The outer flow channel (121) and the inner flow channel (122) are separated by a first partition portion (123) disposed therebetween. The right side of the switching valve (12) has a main flow channel (124). The switching valve (12) has two symmetrical first through-holes (125) for allowing the main flow channel (124) to communicate with the outer flow channel (121). The switching valve (12) has two symmetrical second through-holes (126) for allowing the main flow channel (124) to communicate with the inner flow channel (122). The first through-holes (125) and the second through-holes (126) are staggered at 90° intervals. A baffle (13) is disposed in the main flow channel (124). A waterproof gasket (14) is disposed between the baffle (13) and the switching valve (12). The baffle (13) is penetrated by two symmetrical flow channel holes (131). Two symmetrical waterproof edges (132) are disposed protrudingly at the baffle (13) and configured to abut against the waterproof gasket (14). An axial hole (127) is disposed on the left side of the switching valve (12) and configured to communicate with the main flow channel (124). A push shaft (15) is mounted inside the axial hole (127) and has an end. The end has a button (151). Two snap-fixing grooves (1241) are symmetrically, recessedly disposed at an opening of the main flow channel (124). Two snap-fixing edges (161) are symmetrically, protrudingly disposed at the periphery of a round valve cover (16). The valve cover (16) rotates to allow the snap-fixing edges (161) to be snap-fixed into the snap-fixing grooves (1241) such that the valve cover (16) conceals the opening of the main flow channel (124). A spring (162) is disposed between the valve cover (16) and the baffle (13). When the button (151) is pressed, the push shaft (15) pushes the baffle (13) to cause the baffle (13) to rotate by 90° and thus abut against the waterproof gasket (14) in coordination with the spring (162) to not only allow the flow channel holes (131) to communicate with the first through-holes (125) but also allow the baffle (13) to block the second through-holes (126) or to not only allow the flow channel holes (131) to communicate with the second through-holes (126) but also allow the baffle (13) to block the first through-holes (125). An inlet channel (128) is disposed at the top of the switching valve (12) and configured to communicate with the main flow channel (124). The top of the switching valve (12) and a pull-out water pipe (20) are screwed to and mounted on a faucet (30). The bottom of the switching valve (12) is screwed and fastened to a spray head cover (17). The spray head cover (17) has a water spraying channel (171) and a water flow channel (172). The water spraying channel (171) and the water flow channel (172) are separated by a second partition portion (173) disposed therebetween. A water spraying portion (174) is mounted on an opening of the water spraying channel (171). A water flow portion (175) is mounted on an opening of the water flow channel (172). A water spraying ring (176) is mounted inside the water spraying channel (171). A washer (177) is disposed between the water flow portion (175) and the first partition portion (123) and configured to precisely block the gaps between the outer flow channel (121), the inner flow channel (122), the water spraying channel (171) and the water flow channel (172). The water spraying portion (174) has a plurality of water spraying heads (1741) for dispensing water. The water spraying ring (176) has a plurality of water spraying holes (1761).

[0024] Referring to FIG. 6 through FIG. 8, after water has entered the main flow channel (124) via the inlet channel (128), pressing the button (151) enables the baffle (13) to rotate to cause water to pass through the flow channel holes (131) and the first through-holes (125) and then enter the water spraying channel (171), allowing the water to be dispersed by the plurality of water spraying holes (1761) and the water spraying heads (1741) and sprinkled. Referring to FIG. 9 and FIG. 10, alternatively, pressing the button (151) enables the baffle (13) to rotate to cause water to pass through the flow channel holes (131) and the second through-holes (126) and then enter the water flow channel (172), allowing the water to be discharged from the water flow portion (175).

[0025] Given the aforesaid structures, a lateral side of the switching valve (12) has the main flow channel (124) and the axial hole (127), allowing the baffle (13) and the push shaft (15) to be conveniently fit to the switching valve (12) laterally. A user only needs to rotate the valve cover (16) to allow the snap-fixing edges (161) to be snap-fixed into the snap-fixing grooves (1241) and thus allow the valve cover (16) to conceal the opening of the main flow channel (124). Therefore, not only is the pull-out spray head (10) easy to assemble and install, but the valve cover (16) can also be rotated to enter and exit the main flow channel (124) such that blockages or dirt therein can be conveniently removed during a maintenance process. The button (151) is disposed on a lateral surface of the pull-out spray head (10) and thus can be easily pressed by the user to switch between different water dispensing modes. The push shaft (15) pushes the baffle (13) to cause the rotation thereof such that water can enter the main flow channel (124) and then enter the water spraying channel (171) to allow the water to be dispersed by the plurality of water spraying holes (1761) and the water spraying heads (1741) and sprinkled, or cause water to enter the main flow channel (124) and then enter the water flow channel (172), allowing the water to be discharged from the water flow portion (175), so as to achieve washing purposes through water spray or water flow.

[0026] Referring to FIG. 3 and FIG. 4, the disclosure provides a pull-out spray head structure for a kitchen faucet, in which the inlet channel (128) has at least one check valve (18) for preventing water backflow to enhance the stability of water usage.

[0027] Referring to FIG. 3 and FIG. 4, the disclosure provides a pull-out spray head structure for a kitchen faucet, in which the check valve (18) is in the number of one.

[0028] Referring to FIG. 11, the disclosure provides a pull-out spray head structure for a kitchen faucet, in which the check valve (18) is in the number of two to enhance its checking function.

[0029] Referring to FIG. 11, the disclosure provides a pull-out spray head structure for a kitchen faucet, in which the check valve (18) is covered by a check valve sleeve (19), and the check valve sleeve (19) is disposed between the inlet channel (128) and the check valve (18). The check valve sleeve (19) not only enables the check valve (18) to be installed smoothly but also stops water from seeping into the space between the inlet channel (128) and the check valve (18).

[0030] Referring to FIG. 10, the disclosure provides a pull-out spray head structure for a kitchen faucet, in which the water flow portion (175) is a ripple generator for smoothing the water flow.

[0031] Referring to FIG. 2 and FIG. 6, the disclosure provides a pull-out spray head structure for a kitchen faucet, in which an O-Ring (101) is disposed between the switching valve (12) and the spray head cover (17), between the push shaft (15) and the switching valve (12), and between the valve cover (16) and the switching valve (12) to prevent water from seeping out of the switching valve (12).

[0032] Therefore, the present invention not only embodies radical innovation and improvements on prior art but also exhibits high industrial applicability, inventiveness, and novelty.

[0033] The disclosure is disclosed above by a preferred embodiment, but the preferred embodiment is not restrictive of the scope of implementation of the disclosure. All equivalent changes and modifications made to the preferred embodiment according to the claims of the disclosure shall be deemed falling within the scope of the claims of the disclosure.

Examples

Embodiment Construction

[0022]Objectives, features, and advantages of the disclosure are herein illustrated with specific embodiments, depicted with drawings, and described below.

[0023]Referring to FIG. 1 through FIG. 8, the disclosure provides a pull-out spray head structure for a kitchen faucet, comprising a pull-out spray head (10). The pull-out spray head (10) has a spray head casing (11). The spray head casing (11) receives therein a switching valve (12). The bottom of the switching valve (12) has an outer flow channel (121) and an inner flow channel (122). The outer flow channel (121) and the inner flow channel (122) are separated by a first partition portion (123) disposed therebetween. The right side of the switching valve (12) has a main flow channel (124). The switching valve (12) has two symmetrical first through-holes (125) for allowing the main flow channel (124) to communicate with the outer flow channel (121). The switching valve (12) has two symmetrical second through-holes (126) for allowi...

FIELD

[0001] The present disclosure relates to pull-out spray head structures for kitchen faucets, and more particularly to a pull-out spray head structure for a kitchen faucet, not only switching between different water dispensing modes with a single press of a button, but also featuring ease of installation and use.BACKGROUND

[0002] In our busy modern lifestyle, it is essential that kitchen appliances offer maximum convenience. Kitchen faucets nowadays come with pull-out structures to not only allow for easy washing of fruits and vegetables but also enable a user to pull out a pull-out spray head to conveniently adjust the sprinkling range. Considering the everyday home repair costs for users, a pull-out spray head structure for a kitchen faucet that is easy to assemble, install, and maintain is essential.

[0003] In view of this, the inventor of the disclosure came up with an idea for an invention. To this end, the inventor undertook a design process based on years of experience, conducted extensive discussions, built prototypes to be tested, and made amendments and improvements, culminating in the realization of the invention.SUMMARY

[0004] The disclosure provides a pull-out spray head structure for a kitchen faucet, switching between different water dispensing modes with a single press of a button, featuring ease of installation and use, and being convenient for a user to assemble and repair.

[0005] The disclosure provides a pull-out spray head structure for a kitchen faucet, comprising: a pull-out spray head having a spray head casing, the spray head casing receiving therein a switching valve, the switching valve having a bottom with an outer flow channel and an inner flow channel, with a first partition portion disposed between and configured to separate the outer flow channel and the inner flow channel, with a main flow channel disposed on a right side of the switching valve, wherein the switching valve has two symmetrical first through-holes for allowing the main flow channel to communicate with the outer flow channel and has two symmetrical second through-holes for allowing the main flow channel to communicate with the inner flow channel, wherein the first through-holes and the second through-holes are staggered at 90° intervals, with a baffle disposed in the main flow channel, with a waterproof gasket disposed between the baffle and the switching valve, the baffle being penetrated by two symmetrical flow channel holes, with two symmetrical waterproof edges disposed protrudingly at the baffle and configured to abut against the waterproof gasket, with an axial hole disposed on a left side of the switching valve and configured to communicate with the main flow channel, with a push shaft mounted inside the axial hole and having an end, the end having a button, with two snap-fixing grooves symmetrically, recessedly disposed at an opening of the main flow channel, with two snap-fixing edges symmetrically, protrudingly disposed at a periphery of a round valve cover, the valve cover rotating to allow the snap-fixing edges to be snap-fixed to the snap-fixing grooves, allowing the valve cover to conceal the opening of the main flow channel, with a spring disposed between the valve cover and the baffle, wherein pressing the button causes the push shaft to push and rotate the baffle by 90° to allow the baffle to abut against the waterproof gasket in coordination with the spring to not only allow the flow channel holes to communicate with the first through-holes but also allow the baffle to block the second through-holes or to not only allow the flow channel holes to communicate with the second through-holes but also allow the baffle to block the first through-holes, with an inlet channel disposed at a top of the switching valve and configured to communicate with the main flow channel, wherein the top of the switching valve and a pull-out water pipe are screwed to and mounted on a faucet, wherein a bottom of the switching valve is screwed and fastened to a spray head cover, the spray head cover having a water spraying channel and a water flow channel, with a second partition portion disposed between and configured to separate the water spraying channel and the water flow channel, with a water spraying portion mounted on an opening of the water spraying channel, with a water flow portion mounted on an opening of the water flow channel, with a water spraying ring mounted inside the water spraying channel, with a washer disposed between the water flow portion and the first partition portion and configured to precisely block gaps between the outer flow channel, the inner flow channel, the water spraying channel and the water flow channel, the water spraying portion having a plurality of water spraying heads for dispensing water, and the water spraying ring having a plurality of water spraying holes; wherein, after water has entered the main flow channel via the inlet channel, pressing the button enables the baffle to rotate to cause water to pass through the flow channel holes and the first through-holes and then enter the water spraying channel, allowing the water to be dispersed by the plurality of water spraying holes and the water spraying heads and sprinkled, alternatively, pressing the button enables the baffle to rotate to cause water to pass through the flow channel holes and the second through-holes and then enter the water flow channel, allowing the water to be discharged from the water flow portion.

[0006] Furthermore, the inlet channel has at least one check valve.

[0007] Furthermore, the water flow portion is a ripple generator.

[0008] The first objective of the disclosure is to allow a lateral side of the switching valve to have the main flow channel and the axial hole, allowing the baffle and the push shaft to be conveniently fit to the switching valve laterally. Thus, a user only needs to rotate the valve cover to allow the snap-fixing edges to be snap-fixed into the snap-fixing grooves and thus allow the valve cover to conceal the opening of the main flow channel. Therefore, not only is the pull-out spray head easy to assemble and install, but the valve cover can also be rotated to enter and exit the main flow channel such that blockages or dirt therein can be conveniently removed during a maintenance process.

[0009] The second objective of the disclosure is to not only allow the button to be disposed on a lateral surface of the pull-out spray head and thus can be easily pressed by the user to switch between different water dispensing modes but also allow the push shaft to push the baffle to cause the rotation thereof such that water can enter the main flow channel and then enter the water spraying channel to allow the water to be dispersed by the plurality of water spraying holes and the water spraying heads and sprinkled or cause water to enter the main flow channel and then enter the water flow channel, allowing the water to be discharged from the water flow portion (175), so as to achieve washing purposes through water spray or water flow.

[0010] The other objectives, advantages and novelty of the present invention are depicted with drawings and further described below.BRIEF DESCRIPTION OF THE DRAWINGS

[0011] FIG. 1 is a perspective view of the disclosure.

[0012] FIG. 2 is an exploded view of the disclosure.

[0013] FIG. 3 is a perspective view of a switching valve viewed from another angle according to the disclosure.

[0014] FIG. 4 is a cutaway view of switching valve of the disclosure.

[0015] FIG. 5 is a perspective view of a fully-installed state of the disclosure.

[0016] FIG. 6 is a schematic view of water spraying according to the disclosure.

[0017] FIG. 7 is a cross-sectional view taken along line A-A of FIG. 6 according to the disclosure.

[0018] FIG. 8 is a cross-sectional view taken along line B-B of FIG. 7 according to the disclosure.

[0019] FIG. 9 is a schematic view of switching between water flow dispensing modes according to the disclosure.

[0020] FIG. 10 is a schematic view of water flow dispensing according to the disclosure.

[0021] FIG. 11 is a schematic view of a check valve in the number of two according to the disclosure.DETAILED DESCRIPTION

[0022] Objectives, features, and advantages of the disclosure are herein illustrated with specific embodiments, depicted with drawings, and described below.

[0023] Referring to FIG. 1 through FIG. 8, the disclosure provides a pull-out spray head structure for a kitchen faucet, comprising a pull-out spray head (10). The pull-out spray head (10) has a spray head casing (11). The spray head casing (11) receives therein a switching valve (12). The bottom of the switching valve (12) has an outer flow channel (121) and an inner flow channel (122). The outer flow channel (121) and the inner flow channel (122) are separated by a first partition portion (123) disposed therebetween. The right side of the switching valve (12) has a main flow channel (124). The switching valve (12) has two symmetrical first through-holes (125) for allowing the main flow channel (124) to communicate with the outer flow channel (121). The switching valve (12) has two symmetrical second through-holes (126) for allowing the main flow channel (124) to communicate with the inner flow channel (122). The first through-holes (125) and the second through-holes (126) are staggered at 90° intervals. A baffle (13) is disposed in the main flow channel (124). A waterproof gasket (14) is disposed between the baffle (13) and the switching valve (12). The baffle (13) is penetrated by two symmetrical flow channel holes (131). Two symmetrical waterproof edges (132) are disposed protrudingly at the baffle (13) and configured to abut against the waterproof gasket (14). An axial hole (127) is disposed on the left side of the switching valve (12) and configured to communicate with the main flow channel (124). A push shaft (15) is mounted inside the axial hole (127) and has an end. The end has a button (151). Two snap-fixing grooves (1241) are symmetrically, recessedly disposed at an opening of the main flow channel (124). Two snap-fixing edges (161) are symmetrically, protrudingly disposed at the periphery of a round valve cover (16). The valve cover (16) rotates to allow the snap-fixing edges (161) to be snap-fixed into the snap-fixing grooves (1241) such that the valve cover (16) conceals the opening of the main flow channel (124). A spring (162) is disposed between the valve cover (16) and the baffle (13). When the button (151) is pressed, the push shaft (15) pushes the baffle (13) to cause the baffle (13) to rotate by 90° and thus abut against the waterproof gasket (14) in coordination with the spring (162) to not only allow the flow channel holes (131) to communicate with the first through-holes (125) but also allow the baffle (13) to block the second through-holes (126) or to not only allow the flow channel holes (131) to communicate with the second through-holes (126) but also allow the baffle (13) to block the first through-holes (125). An inlet channel (128) is disposed at the top of the switching valve (12) and configured to communicate with the main flow channel (124). The top of the switching valve (12) and a pull-out water pipe (20) are screwed to and mounted on a faucet (30). The bottom of the switching valve (12) is screwed and fastened to a spray head cover (17). The spray head cover (17) has a water spraying channel (171) and a water flow channel (172). The water spraying channel (171) and the water flow channel (172) are separated by a second partition portion (173) disposed therebetween. A water spraying portion (174) is mounted on an opening of the water spraying channel (171). A water flow portion (175) is mounted on an opening of the water flow channel (172). A water spraying ring (176) is mounted inside the water spraying channel (171). A washer (177) is disposed between the water flow portion (175) and the first partition portion (123) and configured to precisely block the gaps between the outer flow channel (121), the inner flow channel (122), the water spraying channel (171) and the water flow channel (172). The water spraying portion (174) has a plurality of water spraying heads (1741) for dispensing water. The water spraying ring (176) has a plurality of water spraying holes (1761).

[0024] Referring to FIG. 6 through FIG. 8, after water has entered the main flow channel (124) via the inlet channel (128), pressing the button (151) enables the baffle (13) to rotate to cause water to pass through the flow channel holes (131) and the first through-holes (125) and then enter the water spraying channel (171), allowing the water to be dispersed by the plurality of water spraying holes (1761) and the water spraying heads (1741) and sprinkled. Referring to FIG. 9 and FIG. 10, alternatively, pressing the button (151) enables the baffle (13) to rotate to cause water to pass through the flow channel holes (131) and the second through-holes (126) and then enter the water flow channel (172), allowing the water to be discharged from the water flow portion (175).

[0025] Given the aforesaid structures, a lateral side of the switching valve (12) has the main flow channel (124) and the axial hole (127), allowing the baffle (13) and the push shaft (15) to be conveniently fit to the switching valve (12) laterally. A user only needs to rotate the valve cover (16) to allow the snap-fixing edges (161) to be snap-fixed into the snap-fixing grooves (1241) and thus allow the valve cover (16) to conceal the opening of the main flow channel (124). Therefore, not only is the pull-out spray head (10) easy to assemble and install, but the valve cover (16) can also be rotated to enter and exit the main flow channel (124) such that blockages or dirt therein can be conveniently removed during a maintenance process. The button (151) is disposed on a lateral surface of the pull-out spray head (10) and thus can be easily pressed by the user to switch between different water dispensing modes. The push shaft (15) pushes the baffle (13) to cause the rotation thereof such that water can enter the main flow channel (124) and then enter the water spraying channel (171) to allow the water to be dispersed by the plurality of water spraying holes (1761) and the water spraying heads (1741) and sprinkled, or cause water to enter the main flow channel (124) and then enter the water flow channel (172), allowing the water to be discharged from the water flow portion (175), so as to achieve washing purposes through water spray or water flow.

[0026] Referring to FIG. 3 and FIG. 4, the disclosure provides a pull-out spray head structure for a kitchen faucet, in which the inlet channel (128) has at least one check valve (18) for preventing water backflow to enhance the stability of water usage.

[0027] Referring to FIG. 3 and FIG. 4, the disclosure provides a pull-out spray head structure for a kitchen faucet, in which the check valve (18) is in the number of one.

[0028] Referring to FIG. 11, the disclosure provides a pull-out spray head structure for a kitchen faucet, in which the check valve (18) is in the number of two to enhance its checking function.

[0029] Referring to FIG. 11, the disclosure provides a pull-out spray head structure for a kitchen faucet, in which the check valve (18) is covered by a check valve sleeve (19), and the check valve sleeve (19) is disposed between the inlet channel (128) and the check valve (18). The check valve sleeve (19) not only enables the check valve (18) to be installed smoothly but also stops water from seeping into the space between the inlet channel (128) and the check valve (18).

[0030] Referring to FIG. 10, the disclosure provides a pull-out spray head structure for a kitchen faucet, in which the water flow portion (175) is a ripple generator for smoothing the water flow.

[0031] Referring to FIG. 2 and FIG. 6, the disclosure provides a pull-out spray head structure for a kitchen faucet, in which an O-Ring (101) is disposed between the switching valve (12) and the spray head cover (17), between the push shaft (15) and the switching valve (12), and between the valve cover (16) and the switching valve (12) to prevent water from seeping out of the switching valve (12).

[0032] Therefore, the present invention not only embodies radical innovation and improvements on prior art but also exhibits high industrial applicability, inventiveness, and novelty.

[0033] The disclosure is disclosed above by a preferred embodiment, but the preferred embodiment is not restrictive of the scope of implementation of the disclosure. All equivalent changes and modifications made to the preferred embodiment according to the claims of the disclosure shall be deemed falling within the scope of the claims of the disclosure.

Examples

Embodiment Construction

[0022]Objectives, features, and advantages of the disclosure are herein illustrated with specific embodiments, depicted with drawings, and described below.

[0023]Referring to FIG. 1 through FIG. 8, the disclosure provides a pull-out spray head structure for a kitchen faucet, comprising a pull-out spray head (10). The pull-out spray head (10) has a spray head casing (11). The spray head casing (11) receives therein a switching valve (12). The bottom of the switching valve (12) has an outer flow channel (121) and an inner flow channel (122). The outer flow channel (121) and the inner flow channel (122) are separated by a first partition portion (123) disposed therebetween. The right side of the switching valve (12) has a main flow channel (124). The switching valve (12) has two symmetrical first through-holes (125) for allowing the main flow channel (124) to communicate with the outer flow channel (121). The switching valve (12) has two symmetrical second through-holes (126) for allowi...

Claims

1. A pull-out spray head structure for a kitchen faucet, comprising:a pull-out spray head having a spray head casing, the spray head casing receiving therein a switching valve, the switching valve having a bottom with an outer flow channel and an inner flow channel, with a first partition portion disposed between and configured to separate the outer flow channel and the inner flow channel, with a main flow channel disposed on a right side of the switching valve, wherein the switching valve has two symmetrical first through-holes for allowing the main flow channel to communicate with the outer flow channel and has two symmetrical second through-holes for allowing the main flow channel to communicate with the inner flow channel, wherein the first through-holes and the second through-holes are staggered at 90° intervals, with a baffle disposed in the main flow channel, with a waterproof gasket disposed between the baffle and the switching valve, the baffle being penetrated by two symmetrical flow channel holes, with two symmetrical waterproof edges disposed protrudingly at the baffle and configured to abut against the waterproof gasket, with an axial hole disposed on a left side of the switching valve and configured to communicate with the main flow channel, with a push shaft mounted inside the axial hole and having an end, the end having a button, with two snap-fixing grooves symmetrically, recessedly disposed at an opening of the main flow channel, with two snap-fixing edges symmetrically, protrudingly disposed at a periphery of a round valve cover, the valve cover rotating to allow the snap-fixing edges to be snap-fixed to the snap-fixing grooves, allowing the valve cover to conceal the opening of the main flow channel, with a spring disposed between the valve cover and the baffle, wherein pressing the button causes the push shaft to push and rotate the baffle by 90° to allow the baffle to abut against the waterproof gasket in coordination with the spring to not only allow the flow channel holes to communicate with the first through-holes but also allow the baffle to block the second through-holes or to not only allow the flow channel holes to communicate with the second through-holes but also allow the baffle to block the first through-holes, with an inlet channel disposed at a top of the switching valve and configured to communicate with the main flow channel, wherein the top of the switching valve and a pull-out water pipe are screwed to and mounted on a faucet, wherein a bottom of the switching valve is screwed and fastened to a spray head cover, the spray head cover having a water spraying channel and a water flow channel, with a second partition portion disposed between and configured to separate the water spraying channel and the water flow channel, with a water spraying portion mounted on an opening of the water spraying channel, with a water flow portion mounted on an opening of the water flow channel, with a water spraying ring mounted inside the water spraying channel, with a washer disposed between the water flow portion and the first partition portion and configured to precisely block gaps between the outer flow channel, the inner flow channel, the water spraying channel and the water flow channel, the water spraying portion having a plurality of water spraying heads for dispensing water, and the water spraying ring having a plurality of water spraying holes;wherein, after water has entered the main flow channel via the inlet channel, pressing the button enables the baffle to rotate to cause water to pass through the flow channel holes and the first through-holes and then enter the water spraying channel, allowing the water to be dispersed by the plurality of water spraying holes and the water spraying heads and sprinkled, alternatively, pressing the button enables the baffle to rotate to cause water to pass through the flow channel holes and the second through-holes and then enter the water flow channel, allowing the water to be discharged from the water flow portion.

2. The pull-out spray head structure for a kitchen faucet according to claim 1, wherein the inlet channel has at least one check valve.

3. The pull-out spray head structure for a kitchen faucet according to claim 2, wherein the check valve is in the number of one.

4. The pull-out spray head structure for a kitchen faucet according to claim 2, wherein the check valve is in the number of two.

5. The pull-out spray head structure for a kitchen faucet according to claim 2, wherein the check valve is covered by a check valve sleeve, and the check valve sleeve is disposed between the inlet channel and the check valve.

6. The pull-out spray head structure for a kitchen faucet according to claim 1, wherein the water flow portion is a ripple generator.

7. The pull-out spray head structure for a kitchen faucet according to claim 1, wherein an O-Ring is disposed between the switching valve and the spray head cover, between the push shaft and the switching valve, and between the valve cover and the switching valve to prevent water from seeping out of the switching valve.

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