A double-handle kitchen faucet

Abstract

A double-handle kitchen faucet includes a faucet body, a water outlet elbow, a plastic water inlet and outlet seat, a plastic cold water valve core seat, a cold water valve core, a plastic hot water valve core seat, a hot water valve core, a plastic valve core sleeve, a pressure cap, and a handle assembly. The plastic water inlet and outlet seat is arranged in the faucet body, one end of the plastic cold water valve core seat is embedded in a plastic valve core sleeve, the cold water valve core is screwed into the internal thread of the plastic valve core sleeve, and the plastic cold water valve core seat and the cold water valve core are connected; one end of the plastic hot water valve core seat is embedded in another plastic valve core sleeve, the hot water valve core is screwed into the internal thread of the plastic valve core sleeve, and the plastic hot water valve core seat and the hot water valve core are connected; the valve stems of the cold water valve core and the hot water valve core are respectively fixed to the handle assembly; the water outlet elbow is connected to the water outlet mixing chamber through a water guide pivot assembly. The faucet body adopts such a structure, and the arrangement of the plastic water inlet and outlet seat, the plastic cold water valve core seat, the plastic hot water valve core seat, and the plastic valve core sleeve reduces machining steps, reduces contact between water and metal, and prevents pollution.

Description

Technical Field

[0001] The present invention relates to the field of kitchen faucets, in particular to a double-handle kitchen faucet. Background Art

[0002] The current existing technology, Chinese patent 202021679505.2, a double-handled faucet, includes a faucet body, a cold water inlet pipe, a hot water inlet pipe, an outlet pipe, two valve cores and two handles. The faucet body is formed in one piece, and the middle part of the faucet body has two symmetrical valve chambers, and the valve cores are installed in the valve chambers. The top of the faucet body has a mixing chamber connected to the outlet pipe, and the bottom of the faucet body has symmetrical cold water chambers and hot water chambers. The cold water chamber is adjacent to the hot water chamber, and the cold water chamber is connected to the cold water inlet pipe, and the hot water chamber is connected to the hot water inlet pipe. Both handles are tilted upward, and the handles can drive the valve cores to rotate. The two valve cores are divided into a first valve core and a second valve core. The first valve core can connect the cold water chamber with the mixing chamber, and the second valve core can connect the hot water chamber with the mixing chamber. The existing problems are: the faucet main body structure is complex, the machining steps are many, and the process is complicated; Summary of the Invention

[0003] The purpose of the present invention is to provide a double-handle kitchen faucet which has the characteristics of fewer machining steps, convenient assembly and high work efficiency.

[0004] The present invention is realized as follows: a double-handle kitchen faucet, which is special in that it includes a faucet body, a water outlet elbow, a plastic water inlet and outlet seat, a plastic cold water valve core seat, a cold water valve core, a plastic hot water valve core seat, a hot water valve core, a plastic valve core sleeve, a gland and a handle assembly.

[0005] The plastic water inlet and outlet seat includes a left hot water channel, a right cold water channel, a water outlet mixing chamber, a left channel and a right channel.

[0006] The faucet body consists of a left heat control chamber, a right cold control chamber, a top seat tube and a base tube.

[0007] The plastic cold water valve core seat is provided with a cold water inlet pipe and a cold water outlet pipe, and the plastic hot water valve core seat is provided with a hot water inlet pipe and a hot water outlet pipe;

[0008] The plastic valve core sleeve is provided with an internal thread, and the gland is pre-buried in the plastic valve core sleeve;

[0009] The plastic inlet and outlet seats are arranged in the faucet body and the lower part extends into the base tube. One end of the plastic cold water valve core seat is embedded in a plastic valve core sleeve, the cold water valve core is screwed into the internal thread of the plastic valve core sleeve, the plastic cold water valve core seat and the cold water valve core are docked, the pressure cover is screwed into the internal thread of the right cold control chamber, and the cold water inlet pipe and the cold water outlet pipe are respectively inserted into the right cold water channel and the right channel; one end of the plastic hot water valve core seat is embedded in another plastic valve core sleeve, the hot water valve core is screwed into the internal thread of the plastic valve core sleeve, the plastic hot water valve core seat and the hot water valve core are docked, the pressure cover is screwed into the internal thread of the left thermal control chamber, and the hot water inlet pipe and the hot water outlet pipe are respectively inserted into the left hot water channel and the left channel; the valve stems of the cold water valve core and the hot water valve core are respectively fixed to the handle assembly; the outlet elbow is connected to the outlet mixing chamber through the water guide pivot assembly.

[0010] The double-handle kitchen faucet is special in that the left hot water channel includes a horizontal hot water portion and a vertical hot water portion, and the right cold water channel includes a horizontal cold water portion and a vertical cold water portion.

[0011] The special feature of the double-handle kitchen faucet is that a shaft sleeve is provided in the top seat tube, and a countersunk hole is provided at the lower end of the shaft sleeve;

[0012] The water outlet mixing chamber is provided with a water mixing interface pipe;

[0013] The mixing water interface pipe is inserted into the sink hole, the lower end of the water guide pivot assembly is inserted into the mixing water interface pipe, the middle part is rotatably matched with the shaft sleeve, and the upper end is fixed to the water outlet elbow.

[0014] The special feature of the double-handle kitchen faucet is that: the plastic water inlet and outlet seat is provided with two longitudinal protrusions;

[0015] The base tube is provided with two axial positioning grooves on a diameter line;

[0016] The longitudinal protrusion is interference fit with the axial positioning groove.

[0017] The double-handle kitchen faucet is special in that: the plastic cold water valve core seat includes a cold body, a flange, a cold head, the cold water inlet pipe and the cold water outlet pipe, a water guide channel and a water outlet groove; the cold body is inserted into the plastic valve core sleeve and sealed; the flange and the end of the plastic valve core sleeve are matched to stop; the end of the cold head is connected to the cold water valve core;

[0018] The plastic hot water valve core seat includes a hot body, a flange, a hot water head, the hot water inlet pipe and the hot water outlet pipe, a water guide channel and a water outlet groove. The hot body is inserted into the plastic valve core sleeve, and the hot head is connected to the hot water valve core.

[0019] The double-handle kitchen faucet is special in that the handle assembly includes a handle, a first connecting piece, a second connecting piece and a screw.

[0020] The handle comprises a circular base with an open end and a handle, wherein the circular base is provided with a stop cavity and an internal thread cavity;

[0021] The first connecting member includes a first body portion with an open end and a first tooth slot hole, a first external tooth provided on the first body portion, and a flange; a connecting hole is provided on an end plate of the first body portion;

[0022] The second connecting member includes a fixing cavity, a second body with a second tooth slot hole, and an external thread provided on the second body; the fixing cavity includes an annular buckle and a force relief groove provided at an open end;

[0023] The external tooth head on the valve stem of the cold water valve core and the hot water valve core is inserted into the first tooth groove hole of the first body, and the screw passes through the connecting hole and is screwed into the valve stem; the external thread of the second body is screwed into the internal thread cavity of the circular seat, and the fixing cavity is embedded in the stop cavity; the first connecting piece is inserted into the second connecting piece and can be detachably matched, the flange is embedded in the fixing cavity, and the first external tooth is embedded in the second tooth groove hole.

[0024] The special feature of the double-handle kitchen faucet is that the lower end of the base tube of the faucet body is provided with an internal thread;

[0025] It also includes a circular base, a threaded tube, a gasket, an internal thread sleeve and a hand-held tube.

[0026] The annular base is provided with an internal thread of a tooth tube and a top external thread head;

[0027] The internal thread sleeve is embedded in the upper end of the hand-held tube, the top external thread head is screwed with the internal thread of the base tube, and the upper end of the tooth tube is screwed with the internal thread of the tooth tube of the annular seat; the gasket is sleeved on the tooth tube, the internal thread sleeve is screwed with the lower part of the tooth tube and supports the gasket.

[0028] The present invention provides a double-handle kitchen faucet. The faucet body adopts such a structure. The arrangement of plastic water inlet and outlet seats, plastic cold water valve core seat, plastic hot water valve core seat and plastic valve core sleeve reduces machining steps, reduces contact between water and metal, and prevents pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a cross-sectional view of the present invention.

[0030] Figure 2 It is a three-dimensional exploded view of the present invention.

[0031] Figure 3 It is one of the partial three-dimensional exploded views of the present invention.

[0032] Figure 4 This is the second partial exploded view of the present invention.

[0033] Figure 5The utility model is a three-dimensional diagram of a novel plastic cold water valve core seat or a plastic hot water valve core seat of the present invention.

[0034] Figure 6 The utility model is a three-dimensional cross-sectional view of a novel plastic cold water valve core seat or a plastic hot water valve core seat of the present invention. DETAILED DESCRIPTION

[0035] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0036] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediary, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0037] like Figure 1 As shown, a double-handle kitchen faucet includes a faucet body 1, a water outlet elbow 2, a plastic inlet and outlet seat 3, a plastic cold water valve core seat 41, a cold water valve core 42, a plastic hot water valve core seat 51, a hot water valve core 52, a plastic valve core sleeve 6, a gland 7 and a handle assembly 8.

[0038] The plastic water inlet and outlet seat 3 includes a left hot water channel 31, a right cold water channel 32, a water outlet mixing chamber 33, a left channel 34 and a right channel 35.

[0039] The faucet body 1 includes a left heat control chamber 11, a right cold control chamber 12, a top seat tube 13 and a base tube 14. The straight line where the left heat control chamber 11 and the right cold control chamber 12 are located is perpendicular to the straight line where the top seat tube 13 and the base tube 14 are located.

[0040] The plastic cold water valve core seat 41 is provided with a cold water inlet pipe 411 and a cold water outlet pipe 412, and the plastic hot water valve core seat 51 is provided with a hot water inlet pipe and a hot water outlet pipe. The plastic cold water valve core seat 41 and the plastic hot water valve core seat 51 have the same structure and shape;

[0041] The plastic valve core sleeve 6 is provided with an internal thread 61, and the gland 7 is cylindrical with both ends open and an external thread provided on the outer circumferential surface. The gland 7 is pre-buried in the plastic valve core sleeve 6;

[0042] The plastic inlet and outlet seat 3 is arranged in the faucet body 1 and the lower part extends into the base tube 14. The left hot water channel 31 and the left channel 34 are opposite to the left heat control chamber 11, and the right cold water channel 32 and the right channel 35 are opposite to the right cold control chamber 12; one end of the plastic cold water valve core seat 41 is embedded in a plastic valve core sleeve 6, and the cold water valve core 42 is screwed with the internal thread of the plastic valve core sleeve 6. The plastic cold water valve core seat 41 and the cold water valve core 42 are docked, and the pressure cover 7 is screwed with the internal thread of the right cold control chamber 12. The cold water inlet pipe 411 and the cold water outlet pipe 412 are respectively inserted into the right cold The hot water valve core seat 51 is inserted into the water channel 32 and the right channel 35; one end of the plastic hot water valve core seat 51 is embedded in the other plastic valve core sleeve 6, and the hot water valve core 52 is screwed into the internal thread of the plastic valve core sleeve 6. The plastic hot water valve core seat 51 and the hot water valve core 52 are connected. The gland 7 is screwed into the internal thread of the left thermal control chamber 11. The hot water inlet and outlet pipes are inserted into the left hot water channel 31 and the left channel 34 respectively. The valve stems of the cold water valve core 42 and the hot water valve core 52 are respectively fixed to the handle assembly 8. The water outlet elbow 2 is connected to the water outlet mixing chamber 33 via the water guide pivot assembly 9. The water outlet elbow 2 can rotate.

[0043] The faucet body 1 adopts such a structure, which is simple in structure, has few machining steps and high work efficiency; the plastic inlet and outlet seats 3, the plastic cold water valve core seat 41, the plastic hot water valve core seat 51 and the plastic valve core sleeve 6 are made of plastic materials, which are easy to manufacture and have high work efficiency, and can isolate water from metal to prevent metal from contaminating water;

[0044] Operate the handle assembly 8 and drive the cold water valve core 42 to rotate, and the cold water flows through the right cold water channel 32, the plastic cold water valve core seat 41, and the cold water valve core into the water outlet mixing chamber 33, and finally flows out of the water outlet elbow;

[0045] Operate the handle assembly 8 and drive the hot water valve core 52 to rotate, and the cold water enters the water outlet mixing chamber 33 through the left hot water channel 31, the plastic hot water valve core seat 51, and the hot water valve core 52, and finally flows out of the hot water outlet elbow;

[0046] By operating the handle assembly 8, cold water and hot water are mixed in the water outlet mixing chamber 33, and the cold and hot mixed water flows out of the water outlet elbow.

[0047] The left hot water channel 31 includes a horizontal hot water part and a vertical hot water part, and the vertical hot water part is connected to the hot water inlet pipe; the right cold water channel 32 includes a horizontal cold water part and a vertical cold water part, and the horizontal cold water part is plugged into the cold water inlet interface pipe 411, and the vertical cold water part is connected to the cold water inlet pipe.

[0048] As a further improvement of the present invention: a shaft sleeve 131 is provided in the top seat tube 13, and a countersunk hole is provided at the lower end of the shaft sleeve 131;

[0049] The water outlet mixing chamber 33 is provided with a water mixing interface pipe 331;

[0050] The mixing water interface pipe 331 is inserted into the countersunk hole of the shaft sleeve 131. The lower end of the water guide pivot assembly 9 is inserted into the mixing water interface pipe 331 and is sealed and rotated together. The middle part rotates with the shaft sleeve 131, and the upper end is fixed to the water outlet elbow 2.

[0051] With such a structure, during assembly, the plastic water inlet and outlet seat 3 is inserted into the base tube 14 of the faucet body 1, the mixing water interface pipe 331 is plugged into the countersunk hole of the shaft sleeve 131, and the lower part of the plastic water inlet and outlet seat 3 is interference fit with the base tube 14 to fix the plastic water inlet and outlet seat 3; then the plastic cold water valve core seat 41 or the plastic hot water valve core seat 51 and the plastic valve core sleeve 6 are assembled; finally, the cold water valve core and the hot water valve core are assembled; the assembly is convenient, accurate and reliable.

[0052] The plastic water inlet and outlet seat 3 is provided with two longitudinal protrusions 36;

[0053] The base tube 14 is provided with two axial positioning grooves on a diameter line. The diameter line where the axial positioning grooves are located coincides with the straight line where the left heat control cavity 11 and the right cold control cavity 12 are located when viewed from above.

[0054] The longitudinal projection 36 is interference-fitted with the axial positioning groove. With such a structure, accurate positioning is achieved.

[0055] like Figure 5 、 Figure 6 As shown, the plastic cold water valve core seat 41 includes a cold body portion 413, a flange 414, a cold head portion 415, the cold water inlet pipe 411 and the cold water outlet pipe 412, a water guide channel 416 and a water outlet groove 417, the cold water inlet pipe 411 is connected to the water guide channel 416, and the water outlet groove 417 is connected to the cold water outlet pipe 412; the water outlet groove 416 is provided on the cold head portion 415 and is adjacent to the cold body portion 413; the cold body portion 413 is inserted into the plastic valve core sleeve 6 and sealed, the flange 414 cooperates with the end of the plastic valve core sleeve 6 to stop, and the end of the cold head portion 415 is docked with the cold water valve core 42;

[0056] The cold water enters one end of the cold water valve core through the right cold water channel 32, the cold water inlet pipe 411, and the water guide channel 416, and the cold water valve core radially flows into the gap between the cold water valve core 42 and the plastic valve core sleeve 6; then passes through the water outlet groove 417 and the cold water outlet pipe 412 to enter the water outlet mixing chamber 33. Figure 1 Direction of arrow shown;

[0057] The plastic hot water valve core seat 51 includes a hot body, a flange, a hot head, the hot water inlet pipe and the hot water outlet pipe 412, a water guide channel and a water outlet trough. The hot water inlet pipe is connected to the water guide channel, and the water outlet trough is connected to the hot water outlet pipe.

[0058] The handle assembly 8 includes a handle 81, a first connecting member 82, a second connecting member 83 and a screw 84.

[0059] The handle 81 includes a circular seat 811 with an open end and a handle 812. The circular seat 811 is provided with a stop cavity 8111 and an internal thread cavity 8112.

[0060] The first connecting member 82 includes a first body 821 with an open end and a first tooth slot hole, a first external tooth provided on the first body, and a flange 822; a connecting hole is provided on the end plate of the first body 821;

[0061] The second connecting member 83 includes a fixing cavity 831, a second body portion 832 with a second tooth slot hole, and an external thread provided on the second body portion; the fixing cavity 831 includes an annular hook 8311 and a force relief groove 8312 provided at an open end;

[0062] The external teeth on the valve stems of the cold water valve core and the hot water valve core 52 are inserted into the first tooth slot holes of the first body 821, and screws are passed through the connecting holes and screwed into the valve stems; the external threads of the second body 832 are screwed into the internal thread cavity 8112 of the circular seat 811, and the fixing cavity 831 is engaged with the stop cavity 8111; the first connecting member 82 is inserted into the second connecting member 83 for detachable fit, the flange 822 is engaged with the fixing cavity 831, and the annular hook 8311 is engaged with the flange 822; the first external teeth are engaged with the second tooth slot holes;

[0063] With such a structure, the handle 81 and the second connecting member 83 are connected as one body, and the second connecting member and the first connecting member are detachable and matched; when maintenance is required, the handle 81 and the second connecting member 83 are disassembled together, and there is no need to set a connecting hole in the circular seat 811 of the handle 81 to connect with screws. It is easy to disassemble and assemble without any tools.

[0064] As a further improvement of the present invention: the lower end of the base tube 14 of the faucet body 1 is provided with an internal thread;

[0065] It also includes a circular base 91, a threaded tube 92, a gasket 93, an internal threaded sleeve 94 and a hand-held tube 95.

[0066] The annular base 91 is provided with an internal thread of the threaded tube and a top external threaded head 911;

[0067] The internal threaded sleeve 94 is pre-buried in the upper end of the hand-held tube 95, and the top external threaded head 911 is screwed with the internal thread of the base tube 14. The annular base 91 supports the base tube 14; the upper end of the tooth tube 92 is screwed with the internal thread of the tooth tube on the annular base 91; the gasket 94 is sleeved on the tooth tube 92, and the internal threaded sleeve 94 is screwed with the lower part of the tooth tube 92 and supports the gasket 94;

[0068] When such a structure is used for installation, the hand-held tube 95 can be rotated by hand without any tools.

[0069] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A two-handle kitchen faucet, characterized by: It includes faucet body, water outlet elbow, plastic inlet and outlet seat, plastic cold water valve core seat, cold water valve core, plastic hot water valve core seat, hot water valve core, plastic valve core sleeve, gland and handle assembly. The plastic water inlet and outlet seat includes a left hot water channel, a right cold water channel, a water outlet mixing chamber, a left channel and a right channel. The faucet body consists of a left heat control chamber, a right cold control chamber, a top seat tube and a base tube. The plastic cold water valve core seat is provided with a cold water inlet pipe and a cold water outlet pipe, and the plastic hot water valve core seat is provided with a hot water inlet pipe and a hot water outlet pipe; The plastic valve core sleeve is provided with an internal thread, and the gland is pre-buried in the plastic valve core sleeve; The plastic inlet and outlet seats are arranged in the faucet body and the lower part extends into the base tube. One end of the plastic cold water valve core seat is embedded in a plastic valve core sleeve, the cold water valve core is screwed into the internal thread of the plastic valve core sleeve, the plastic cold water valve core seat and the cold water valve core are docked, the pressure cover is screwed into the internal thread of the right cold control chamber, and the cold water inlet pipe and the cold water outlet pipe are respectively inserted into the right cold water channel and the right channel; one end of the plastic hot water valve core seat is embedded in another plastic valve core sleeve, the hot water valve core is screwed into the internal thread of the plastic valve core sleeve, the plastic hot water valve core seat and the hot water valve core are docked, the pressure cover is screwed into the internal thread of the left thermal control chamber, and the hot water inlet pipe and the hot water outlet pipe are respectively inserted into the left hot water channel and the left channel; the valve stems of the cold water valve core and the hot water valve core are respectively fixed to the handle assembly; the outlet elbow is connected to the outlet mixing chamber through the water guide pivot assembly.

2. The double-handle kitchen faucet according to claim 1, characterized in that: The left hot water channel includes a horizontal hot water portion and a vertical hot water portion, and the right cold water channel includes a horizontal cold water portion and a vertical cold water portion.

3. The double-handle kitchen faucet according to claim 1, characterized in that: A shaft sleeve is provided in the top seat tube, and a countersunk hole is provided at the lower end of the shaft sleeve; The water outlet mixing chamber is provided with a water mixing interface pipe; The mixing water interface pipe is inserted into the sink hole, the lower end of the water guide pivot assembly is inserted into the mixing water interface pipe, the middle part is rotatably matched with the shaft sleeve, and the upper end is fixed to the water outlet elbow.

4. The double-handle kitchen faucet according to claim 3, characterized in that: The plastic water inlet and outlet seat is provided with two longitudinal protrusions; The base tube is provided with two axial positioning grooves on a diameter line; The longitudinal protrusion is interference fit with the axial positioning groove.

5. The double-handle kitchen faucet according to claim 1, characterized in that: The plastic cold water valve core seat includes a cold body, a flange, a cold head, the cold water inlet pipe and the cold water outlet pipe, a water guide channel and a water outlet groove. The cold body is inserted into the plastic valve core sleeve and sealed, the flange and the end of the plastic valve core sleeve are matched to stop, and the end of the cold head is connected to the cold water valve core; The plastic hot water valve core seat includes a hot body, a flange, a hot water head, the hot water inlet pipe and the hot water outlet pipe, a water guide channel and a water outlet groove. The hot body is inserted into the plastic valve core sleeve, and the hot head is connected to the hot water valve core.

6. The double-handle kitchen faucet according to claim 1, characterized in that: The handle assembly includes a handle, a first connecting member, a second connecting member and a screw. The handle comprises a circular base with an open end and a handle, wherein the circular base is provided with a stop cavity and an internal thread cavity; The first connecting member includes a first body portion with an open end and a first tooth slot hole, a first external tooth provided on the first body portion, and a flange; a connecting hole is provided on an end plate of the first body portion; The second connecting member includes a fixing cavity, a second body with a second tooth slot hole, and an external thread provided on the second body; the fixing cavity includes an annular buckle and a force relief groove provided at an open end; The external tooth head on the valve stem of the cold water valve core and the hot water valve core is inserted into the first tooth groove hole of the first body part, and the screw passes through the connecting hole and is screwed into the valve stem; the external thread of the second body part is screwed into the internal thread cavity of the circular seat, and the fixing cavity is embedded in the stop cavity; the first connecting piece is inserted into the second connecting piece for detachable fit, the flange is embedded in the fixing cavity, and the first external tooth is embedded in the second tooth groove hole.

7. A two-handle kitchen faucet according to claim 1, 2, 3, 4, 5 or 6, characterized in that: The lower end of the base tube of the faucet body is provided with an internal thread; It also includes a circular base, a threaded tube, a gasket, an internal thread sleeve and a hand-held tube. The annular base is provided with an internal thread of a tooth tube and a top external thread head; The internal thread sleeve is embedded in the upper end of the hand-held tube, the top external thread head is screwed with the internal thread of the base tube, and the upper end of the tooth tube is screwed with the internal thread of the tooth tube; the gasket is sleeved on the tooth tube, the internal thread sleeve is screwed with the lower part of the tooth tube and supports the gasket.

Images