Double-handle kitchen faucet

Abstract

A double-handle kitchen faucet comprises an installation shell and a water outlet bent pipe, the middle of the installation shell is communicated, two transverse installation bases are arranged, and the two installation bases are each fixedly provided with a valve element base, a switch valve element and a switch handle; the front end of the valve core seat is provided with a water inlet through hole and a water outlet through hole which are respectively communicated with the valve core cavity and are isolated from each other; the switch valve cores are fixed in respective valve core cavities; water inlets and water outlets of the switch valve cores are respectively communicated with the water inlet through hole and the water outlet through hole in a sealing manner; the water outlet elbow is fixed and communicated with the mounting shell through a water outlet joint; a water mixing connector is communicated with the lower portion of the water outlet connector in a sealed mode, the water mixing connector is designed to be of a three-way structure, and the water outlet through holes of the valve element bases on the two sides and the water outlet connector are respectively communicated in a sealed mode. The requirement for the space size of the faucet shell is low, and the application range of the product is large. And the mounting shell is simple in structure, so that the production yield of products is improved, and the production cost of the products is reduced.

Description

Technical Field

[0001] The utility model relates to the field of sanitary wares, and particularly relates to a double-handle kitchen faucet. Background Art

[0002] The faucet is an inseparable household appliance in daily life, and it can be divided into several types such as single-handle type and double-handle type. Among them, the double-handle faucet can be connected to two cold and hot pipes at the same time, and this type of faucet is widely used in bathroom sinks and kitchen vegetable sinks with hot water supply. The existing double-handle faucet has a complex main structure, many machining steps, and some structural designs have more parts and complicated installation steps. Content of the Utility Model

[0003] The utility model aims to provide a double-handle kitchen faucet with fewer parts, simple and firm assembly, and relatively simple production process.

[0004] To achieve the above purpose, the utility model provides a double-handle kitchen faucet, which includes an installation shell and a water outlet elbow. The middle of the installation shell is conducting and is provided with two horizontal mounting seats. Each of the two mounting seats is fixedly assembled with a set of valve core seats, switch valve cores and switch handles. The valve core seat is provided with a middle valve core cavity, and the front end is provided with an inlet through hole and an outlet through hole that are respectively conducting with the valve core cavity and isolated from each other. The switch valve core is fixed in its respective valve core cavity, and the water inlet and outlet of the switch valve core are respectively sealed and conducted with the inlet through hole and the outlet through hole; the water outlet elbow is fixed and conducted with the installation shell through a water outlet joint; a mixing joint is sealed and conducted below the water outlet joint. The mixing joint is designed as a three-way structure, which are a left through pipe, a right through pipe and an upper mixing water pipe respectively. The outlet through holes of the two valve core seats on both sides are respectively sealed and conducted with the left through pipe and the right through pipe, and the water outlet joint is sealed and conducted with the upper mixing water pipe.

[0005] Further, the inlet through hole of the valve core seat is designed as a downward threaded through hole, which is convenient for screwing and fixing the pipe heads of cold or hot water inlet pipes.

[0006] Further, the front end of the valve core seat is separated into an upper part and a lower part by a middle horizontal partition. The upper part is provided with a laterally externally conducting outlet through hole, and the lower part is provided with a vertically downward conducting inlet through hole.

[0007] Further, the outer end of the mounting seat is provided with a first thread, and a locking gland is locked with the mounting seat through an external thread and fixes the valve core seat in the mounting seat.

[0008] Further, the inner wall of the installation shell at the inner end of the mounting seat is provided with a locally protruding limit baffle, and the front end of the valve core seat is correspondingly provided with a limit notch. When the valve core seat is fixed in the mounting seat, the limit notch and the limit baffle are closely matched to achieve the limiting effect of the valve core seat.

[0009] Further, the interior of the water outlet joint is in communication, and at least one sealing ring groove is provided on the outer wall of its upper part, and a threaded joint is provided at the lower part; a sealing ring is fixedly provided on the at least one sealing ring groove, and the water outlet elbow is fixedly sleeved on the upper part of the water outlet joint through a bushing. The upper part of the installation housing is provided with an inwardly extending second thread for locking the threaded joint of the water outlet joint to achieve fixation and positioning.

[0010] Further, a positioning block is provided inside the installation housing, and a positioning screw hole is provided on the positioning block; a fixed pipe sleeve that can move up and down is sleeved on a fixed screw, and a top block is screwed below the fixed pipe sleeve. By rotating the top block, the fixed pipe sleeve can be pushed to move on the fixed screw; the fixed screw is screwed into the positioning screw hole, and the externally connected cold and hot water inlet pipes are clamped together through the fixed pipe sleeve and then screwed and fixed to the water inlet through holes of the corresponding valve element seats. By rotating the top block, the fixed pipe sleeve is pushed into the installation housing to achieve fixation, and the positioning effect of the cold and hot water inlet pipes is better realized.

[0011] The utility model provides a double-handle kitchen faucet. Through modular structure designs such as an installation housing, valve element seats on the left and right sides, switch valve elements on the left and right sides, and a mixing joint, the production and assembly of the product become relatively easy. In particular, the space occupied by the structure of the valve element seat of this patent in the installation housing exactly matches the mixing joint extremely well. The left and right through pipes of the mixing joint just insert into the water outlet through holes of the valve element seat, and can be quickly assembled with the valve element seat to form a complete and stable module, with relatively low requirements for the space size of the faucet housing, making the applicable occasions of this product larger.

[0012] Since the installation housing does not pass water, a zinc alloy material can be selected, and the structure of the installation housing is simple, which improves the production yield of the product and reduces the production cost of the product. The whole set of products is assembled separately, with a simple structure, reducing the production difficulty while improving the quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic exploded view of an embodiment of the utility model;

[0014] Figure 2 is a partial three-dimensional cross-sectional view of an embodiment of the utility model;

[0015] Figure 3 is a cross-sectional view of an embodiment of the utility model;

[0016] Figures 4 - 5 is a partial cross-sectional view of an embodiment of the utility model;

[0017] Figures 6 - 8 is a schematic view of the valve element seat in the utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present utility model, but should not be construed as a limitation of the present utility model.

[0019] As Figures 1 - 8 shown, a double - handle kitchen faucet includes an installation housing 1 and a water outlet elbow 2. The middle of the installation housing 1 is conductive and is provided with two transverse mounting seats 11 opposite to each other. Each of the two mounting seats 11 is locked and assembled with a set of valve core seats 3, switch valve cores 4, and switch handles 5.

[0020] The valve core seat 3 is provided with a middle valve core cavity 31, and at the front end, there are an inlet through - hole 33 and an outlet through - hole 34 that are respectively in communication with the valve core cavity 31 and are isolated from each other. As Figure 6 shown, the front end of the valve core seat 3 is isolated into an upper part and a lower part by a transverse partition 32 in the middle. The upper part is provided with a laterally outward - conducting outlet through - hole 34, and the lower part is provided with a vertically downward - conducting inlet through - hole 33. Such a design facilitates the quick screwing of the cold water inlet pipe 71 and the hot water inlet pipe 72 from the bottom up into the inlet through - hole 33 for fixation. At the same time, the laterally outward - conducting outlet through - hole 34 is designed to match the directions of the two laterally arranged handles.

[0021] The switch valve core 4 is fixed in its respective valve core cavity 31. As Figures 3 - 5 shown, the water inlet 41 and the water outlet 42 of the switch valve core 4 are respectively in sealed communication with the inlet through - hole 33 and the outlet through - hole 34. The switch valve core 4 of this patent adopts a structure with axial water inlet at the front end and lateral water outlet, which is a conventional switch valve core 4 on the market. As Figure 6 shown, the transverse partition 32 of the valve core seat 3 further forms a folded plane 321 in the middle. The end face of the front - end water inlet 41 of the switch valve core 4 closely adheres to the folded plane 321, further ensuring the sealed communication between the water inlet 41 of the switch valve core 4 and the inlet through - hole 33 of the valve core seat 3. The laterally located water outlet 42 of the switch valve core 4 forms a water outlet channel in the valve core cavity 31, and then is in communication with the outlet through - hole 34 of the valve core seat 3 to realize the conduction of the water path to the mixing joint 23.

[0022] The water outlet elbow 2 is fixed and communicated with the installation housing 1 through a water outlet joint 21; the inside of the water outlet joint 21 is communicated, at least one sealing ring 212 groove is provided on the upper outer wall thereof, and a threaded joint 213 is provided at the lower part; in this embodiment, a design with three sealing ring 212 grooves is adopted, a sealing ring 212 is fixedly arranged on each sealing ring 212 groove, the water outlet elbow 2 is fixedly sleeved on the upper part of the water outlet joint 21 through a bushing 22, and sealing is achieved through the three sealing rings 212 on the upper outer wall; a second thread 16 extending inwards is provided on the upper part of the installation housing 1 for locking the threaded joint 213 of the water outlet joint 21 to achieve fixation and positioning.

[0023] A water mixing joint 23 is hermetically communicated below the water outlet joint 21. The water mixing joint 23 is designed as a tee structure, which are a left connecting pipe 231, a right connecting pipe 232 and an upper water mixing pipe 233 respectively. The water outlet through holes 34 of the two valve core seats 3 on both sides are hermetically communicated with the left connecting pipe 231 and the right connecting pipe 232 respectively, and the water outlet joint 21 is hermetically communicated with the upper water mixing pipe 233. In this embodiment, the three pipes of the tee structure of the water mixing joint 23 are all designed as quick plugs, that is, a plurality of parallel sealing rings 212 are arranged on the outside. When inserted into the water outlet through hole 34 and the threaded joint 213, it can be quickly inserted and at the same time achieve the effects of positioning, fixation and sealing.

[0024] A first thread 12 is provided at the outer end of the mounting seat 11, and a locking gland 13 is locked with the mounting seat 11 through an external thread 14 and the valve core seat 3 is fixed in the mounting seat 11. As Figure 3 shown, the locking gland 13 is designed with an end flange 131, and a corresponding step edge 36 is provided on the outside of the valve core seat 3. When the locking gland 13 is screwed with the mounting seat 11, the end flange 131 just clasps the step edge 36 of the valve core seat 3.

[0025] A locally protruding limit baffle 15 is provided on the inner wall of the installation housing 1 at the inner end of the mounting seat 11, and a limit notch 35 is correspondingly provided at the front end of the valve core seat 3. When the valve core seat 3 is fixed in the mounting seat 11, the limit notch 35 is closely matched with the limit baffle 15 to achieve the limiting effect of the valve core seat 3. In this embodiment, the limit baffle 15 is only located on the inner wall of the inner end of the mounting seat 11 and protrudes locally. The purpose of the local protrusion is to be provided based on the avoidance of the water outlet through holes 34 of the two valve core seats 3 on both sides, ensuring that the left connecting pipe 231 and the right connecting pipe 232 of the water mixing joint 23 can be quickly inserted into the water outlet through holes 34 of the valve core seat 3.

[0026] Inside the installation housing 1, there is a positioning block 17, and a positioning screw hole 171 is provided on the positioning block 17. A fixed sleeve 61 that can move up and down is sleeved on a fixed screw 6. A top block 62 is screwed below the fixed sleeve 61. By rotating the top block 62, the fixed sleeve 61 can be pushed to move on the fixed screw 6. The fixed screw 6 is screwed into the positioning screw hole 171, and the externally connected cold and hot water inlet pipes 72 are clamped together through the fixed sleeve 61, and then are screwed and fixed to the water inlet through hole 33 of the corresponding valve core seat 3, so as to better achieve the positioning effect and ensure the stability of the cold and hot water inlet pipes 72.

[0027] In this embodiment, the tee structure of the mixing joint 23 is designed as a planar structure, that is, the left connecting pipe 231, the right connecting pipe 232 and the upper mixing pipe 233 are located in the same plane. In actual applications, it is also allowed that the left connecting pipe 231 and the right connecting pipe 232 present a certain included angle to cooperate with the structure in which the double handles are designed to present some included angles (non-planar setting) in some designs. The mixing joint 23 of this patent adopts an integrated tee structure. The production process of the integrated structure is simple, and it has stable stress capabilities both horizontally and vertically, making its stability excellent, greatly increasing the yield rate of the product and extending the service life.

[0028] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A double-handle kitchen faucet, comprising an installation housing and a water outlet elbow pipe. The middle of the installation housing is conductively connected and is provided with two horizontal mounting seats. Each of the two mounting seats is fixedly assembled with a set of valve core seats, a switch valve core and a switch handle. It is characterized in that: The valve core seat is provided with a middle valve core cavity, and at the front end, there are a water inlet through hole and a water outlet through hole that are respectively communicated with the valve core cavity and isolated from each other. The switching valve core is fixed in its respective valve core cavity, and the water inlet and water outlet of the switching valve core are respectively sealed and communicated with the water inlet through hole and the water outlet through hole; the water outlet elbow is fixed and communicated with the installation housing through a water outlet joint; a mixing joint is sealed and communicated below the water outlet joint. The mixing joint is designed as a three-way structure, namely a left through pipe, a right through pipe, and an upper mixing water pipe. The water outlet through holes of the two valve core seats are respectively sealed and communicated with the left through pipe and the right through pipe, and the water outlet joint is sealed and communicated with the upper mixing water pipe.

2. The dual-handle kitchen faucet according to claim 1, characterized in that: The water inlet through hole of the valve core seat is designed as a downward threaded through hole, which is convenient for the pipe head of the cold or hot water inlet pipe to be screwed and fixed.

3. The dual-handle kitchen faucet according to claim 2, wherein: The front end of the valve core seat is isolated into an upper part and a lower part by a horizontal partition in the middle. The upper part is provided with a horizontally outwardly communicated water outlet through hole, and the lower part is provided with a vertically downwardly communicated water inlet through hole.

4. A double-handle kitchen faucet according to claim 1, characterized in that: The outer end of the mounting seat is provided with a first thread, and a locking gland is locked with the mounting seat through an external thread and fixes the valve core seat in the mounting seat.

5. The double-handle kitchen faucet according to claim 1, wherein: The inner wall of the installation housing at the inner end of the mounting seat is provided with a locally protruding limit baffle, and the front end of the valve core seat is correspondingly provided with a limit notch. When the valve core seat is fixed in the mounting seat, the limit notch and the limit baffle are closely matched to achieve the limiting effect of the valve core seat.

6. The double-handle kitchen faucet according to claim 1, characterized in that: The inside of the water outlet joint is communicated. At least one sealing ring groove is provided on the upper outer wall thereof, and a threaded joint is provided at the lower part; at least one sealing ring is fixed on the sealing ring groove. The water outlet elbow is fixed and sleeved on the upper part of the water outlet joint through a bushing. The upper part of the installation housing is provided with an inwardly extending second thread for locking the threaded joint of the water outlet joint to achieve fixation and positioning.

7. The dual-handle kitchen faucet according to claim 1, characterized in that: A positioning block is provided inside the installation housing, and a positioning screw hole is provided on the positioning block; a movable fixing sleeve is sleeved on a fixing screw. A top block is screwed below the fixing sleeve. By rotating the top block, the fixing sleeve can be pushed to move on the fixing screw; the fixing screw is screwed into the positioning screw hole, and the externally connected cold and hot water inlet pipes are clamped together through the fixing sleeve and then screwed and fixed to the water inlet through holes of the corresponding valve core seats. By rotating the top block, the fixing sleeve is pushed into the installation housing to achieve fixation, and better achieve the positioning effect of the cold and hot water inlet pipes.

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