Drawing faucet

Abstract

The invention is suitable for the technical field of faucets, and provides a drawing faucet. The drawing faucet comprises a faucet body, a filter element, a water inlet connecting piece and a water outlet connecting piece are arranged in the faucet body, the two ends of the filter element are connected with the water inlet connecting piece and the water outlet connecting piece respectively, and the outer side of the filter element communicates with a first water inlet and outlet of the water inlet connecting piece; the inner side of the filter element is communicated with the second water inlet / outlet of the water outlet connecting piece; the drawing assembly is communicated with the water outlet connecting piece and is used for guiding out water flow; and the clamping assembly is arranged on the outer side of the faucet main body and used for clamping the drawing nozzle of the drawing assembly. Compared with the mode that the filter element is arranged on the drawing head, the filter element is arranged in the faucet body, and a larger filtering area can be set; in addition, the filter element in the embodiment is a hollow filter cartridge, so that the filtering and permeating area is further increased, and the filtering capacity is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of faucets, and in particular relates to a pull-out faucet. Background Art

[0002] The pull-out faucet is a modern bathroom or kitchen device with flexible design and diverse functions. Its core feature is that the water outlet can be freely moved through a pull-out hose (usually made of nylon fiber or stainless steel), thereby expanding the cleaning range to corners that are difficult to cover with traditional fixed faucets. It is usually equipped with a gravity ball or magnetic induction structure to ensure that the hose automatically resets, and supports multiple water outlet modes (such as shower water and bubble water), suitable for scenes such as washing hair, rinsing sinks or cleaning large kitchen utensils.

[0003] Prior art CN212941821U discloses a filter pull-out faucet, which includes a valve switch and a hard conduit, a soft tube is inserted into the hard conduit, a pull-out head is provided at the water outlet of the soft tube, and a filter element is provided inside the pull-out head. This scheme arranges the filter element inside the pull-out head, but the volume of the pull-out head is generally small, and the amount of water filtered by the filter element at one time is limited, resulting in insufficient filtering capacity. Summary of the invention

[0004] The purpose of the embodiments of the present invention is to provide a pull-out faucet, aiming to solve the problem of insufficient filtering capacity of existing filtering pull-out faucets.

[0005] The embodiment of the present invention is implemented as follows: a pull-out faucet, the pull-out faucet comprising: The faucet body is provided with a filter element, a water inlet connector and a water outlet connector inside, the two ends of the filter element are respectively connected to the water inlet connector and the water outlet connector, the outer side of the filter element is connected to the first water inlet and outlet of the water inlet connector, and the inner side of the filter element is connected to the second water inlet and outlet of the water outlet connector; A pull-out assembly, connected to the water outlet connector, for conducting water flow; The clamping assembly is arranged on the outside of the faucet body and is used for clamping the pull-out spray head of the pull-out assembly.

[0006] Furthermore, the faucet body comprises: a first shell; A valve core is arranged in the first housing; A water inlet connector, disposed in the first housing and connected to the water outlet end of the valve core; A water outlet connector is installed at the water outlet end of the first shell; the water inlet connector and / or the water outlet connector is detachably connected to one end of the first shell; The filter element is installed between the water inlet connector and the water outlet connector.

[0007] Furthermore, the water inlet connector is provided with: A first water inlet and outlet, arranged on one side of the water inlet connector; A positioning plate, arranged on one side of the first water inlet and outlet, and the positioning plate connects and supports one end of the filter element; A first connecting column, arranged on the side far from the first water inlet and outlet, and the first connecting column is inserted into the interior of the filter element.

[0008] Furthermore, the water outlet connector is provided with: A second connecting column, arranged on the water outlet connector and inserted into the interior of the filter element; A second water inlet and outlet, arranged inside the second connecting column and communicating with the interior of the filter element.

[0009] Furthermore, a number of grooves are arranged on both the first connecting column and the second connecting column, and sealing rings are arranged in the grooves, and the sealing rings seal the inner side of the filter element.

[0010] Furthermore, an observation port is arranged on the first housing, and a sealing cylinder is sleeved inside the first housing to block the observation port, and the sealing cylinder is made of a transparent material.

[0011] Furthermore, the clamping assembly includes: A connecting frame, used for being fixedly arranged on the faucet main body; A clamping seat, arranged on the connecting frame; A spray head mounting seat, clamped into the clamping seat, the spray head mounting seat is used for docking the pull-out spray head of the pull-out assembly, the interior of the spray head mounting seat is hollow, and the hose of the pull-out assembly passes through the spray head mounting seat.

[0012] Furthermore, the clamping seat includes: A second housing, fixedly installed on the connecting frame; A spring piece, arranged inside the second housing, and the clamping part of the spring piece extends out of the second housing and is clamped with the spray head mounting seat; A cover, covering the second housing to fix the spring piece inside the second housing.

[0013] Furthermore, the spray head mounting seat includes: A clamping column, clamped into the spring piece; An upper seat, fixedly arranged at the upper end of the clamping column, and the lower end abuts against the second housing; A lower seat, fixedly arranged at the lower end of the clamping column, and the upper end abuts against the second housing; a docking part for docking the pull-out spray head is arranged at the lower end of the lower seat, and the interiors of the upper seat, the clamping column and the lower seat are all hollow for allowing the hose of the pull-out faucet to pass through.

[0014] Further, an internal thread is provided at the bottom of the lower seat for installing the pull-out spray head, and a plurality of symmetric grooves are provided on the lower end surface of the lower seat for positioning the pull-out spray head.

[0015] In the pull-out faucet provided by the embodiment of the present invention, compared with setting the filter element on the pull-out head, in this embodiment, the filter element is set in the faucet body, and a larger filtering area can be set; in addition, the filter element in this embodiment is a hollow filter cartridge, which further increases the filtering penetration area and improves the filtering ability. Description of the Drawings

[0016] Figure 1 is a side view of the pull-out faucet provided by the embodiment of the present invention; Figure 2 is a side view of the faucet body provided by the embodiment of the present invention; Figure 3 is an exploded view of the faucet body provided by the embodiment of the present invention; Figure 4 is a sectional view of the faucet body provided by the embodiment of the present invention; Figure 5 is a perspective view of the water inlet connecting piece provided by the embodiment of the present invention; Figure 6 is a perspective view of the water outlet connecting piece provided by the embodiment of the present invention; Figure 7 is a perspective view of the clamping component provided by the embodiment of the present invention; Figure 8 is a side view of the clamping component provided by the embodiment of the present invention; Figure 9 provided by the embodiment of the present invention Figure 8 sectional view taken along A-A; Figure 10 is an exploded view of the clamping seat and the spray head mounting seat provided by the embodiment of the present invention; Reference Signs: 100, faucet body; 110, first housing; 111, observation port; 120, water inlet connecting piece; 121, first water inlet and outlet; 122, positioning plate; 123, first connecting column; 130, water outlet connecting piece; 131, second connecting column; 132, second water inlet and outlet; 140, filter element; 150, sealing cylinder; 200, pull-out assembly; 210, hose; 220, pull-out spray head; 300, clamping component; 310, connecting frame; 320, clamping seat; 321, second housing; 322, elastic piece; 323, cover; 330, spray head mounting seat; 331, clamping column; 332, upper seat; 333, lower seat. Detailed Embodiments

[0017] In order to make the objectives, technical solutions and advantages of the present invention more clear and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0018] It can be understood that the terms "first", "second", etc. used in the present application may be used herein to describe various elements, but unless otherwise specified, these elements are not limited by these terms. These terms are only used to distinguish the first element from another element.

[0019] As Figures 1-4 shown, in one embodiment, a pull-out faucet is proposed, and the pull-out faucet includes: A faucet body 100, inside which a filter element 140, a water inlet connector 120 and a water outlet connector 130 are arranged. Both ends of the filter element 140 are respectively connected to the water inlet connector 120 and the water outlet connector 130. The outside of the filter element 140 communicates with a first water inlet and outlet 121 of the water inlet connector 120, and the inside of the filter element 140 communicates with a second water inlet and outlet 132 of the water outlet connector 130; A pull-out assembly 200, which communicates with the water outlet connector 130 and is used to conduct water flow; A clamping assembly 300, which is arranged outside the faucet body 100 and is used to clamp the pull-out nozzle 220 of the pull-out assembly 200.

[0020] In this embodiment, the faucet body 100 is an upright tube, and various faucet components are installed inside, including a filter element 140, a water inlet connector 120 and a water outlet connector 130; among them, the water inlet connector 120 is arranged at the water inlet end, the water outlet connector 130 is arranged at the water outlet end, the filter element 140 is a hollow filter cartridge, and the inside and outside of the filter element 140 communicate with the water outlet connector 130 and the water inlet connector 120 respectively. The water flow to be filtered surrounds the outside of the filter element 140, and under the action of water pressure, the water flow penetrates into the inside of the filter element 140 to complete the filtration. Compared with arranging the filter element 140 on the pull-out head, in this embodiment, the filter element 140 is arranged inside the faucet body 100, and a larger filtration area can be set; in addition, the filter element 140 in this embodiment is a hollow filter cartridge, which further increases the filtration penetration area and improves the filtration ability.

[0021] In this embodiment, the pull-out assembly 200 is a conventional technology, generally including a pull-out nozzle 220, a hose 210 and a retracting device. The pull-out nozzle 220 is arranged at the water outlet end of the hose 210, and the retracting device can be a counterweight ball, which is installed in the middle section of the hose 210 and pulls the hose 210 back to the main body by gravity. The pull-out assembly 200 in this embodiment belongs to conventional technology and will not be elaborated herein.

[0022] In this embodiment, the clamping component 300 can be selected from the following several types: First, the hook-ring type clamping. A hook groove is preset at the connection part, and the connection is achieved by embedding the clamping part of another component. It is convenient for installation and disassembly. Second, the cantilever snap. The hook-shaped structure at the end of the cantilever beam is embedded into the groove. Third, the elastic sheet clamping structure, which will be specifically described in the following embodiments.

[0023] In an optimized solution, as Figures 2-4 shown, the structure of the faucet body 100 is specifically defined. The faucet body 100 includes: The first housing 110; A valve core, which is arranged inside the first housing 110; An inlet connection part 120, which is arranged inside the first housing 110 and docks with the water outlet end of the valve core; An outlet connection part 130, which is installed at the water outlet end of the first housing 110; The inlet connection part 120 and / or the outlet connection part 130 are detachably connected to one end of the first housing 110; A filter element 140, which is installed between the inlet connection part 120 and the outlet connection part 130.

[0024] In this optimized solution, at least one of the inlet connection part 120 and the inlet connection part 120 is set in a detachable manner. When the filter element 140 needs to be replaced, by removing one of the inlet connection part 120 and the inlet connection part 120, the filter element 140 can be taken out, which is convenient for later maintenance. In this optimized solution, an observation port 111 is provided on the first housing 110, and a sealing cylinder 150 is sleeved inside the first housing 110 to block the observation port 111. The sealing cylinder 150 is made of a transparent material. The setting of the sealing cylinder 150 facilitates installation, and the transparent observation port 111 can observe the usage condition of the filter element 140, which is convenient for later replacement of the filter element 140.

[0025] In an optimized solution, as Figure 5 and Figure 6 shown, the structures of the inlet connection part 120 and the outlet connection part 130 are specifically defined. The inlet connection part 120 is provided with: A first water inlet and outlet 121, which is arranged on one side of the inlet connection part 120; A positioning plate 122, which is arranged on one side of the first water inlet and outlet 121, and the positioning plate 122 connects and supports one end of the filter element 140; A first connecting column 123, which is arranged on the side far from the first water inlet and outlet 121, and the first connecting column 123 is inserted into the interior of the filter element 140.

[0026] The outlet connection part 130 is provided with: The second connecting column 131 is disposed on the water outlet connecting member 130 and inserted into the interior of the filter element 140; The second water inlet / outlet 132 is disposed within the second connecting column 131 and is in communication with the interior of the filter element 140.

[0027] In this optimized solution, the faucet body 100 is Figure 1 a columnar shape as shown. The water inlet connecting member 120 is disposed at the bottom of the first housing 110, with one end communicating with the valve core. The positioning plate 122 is used to support and position the filter element 140. A space for water flow is left on one side of the positioning plate 122, such that the first water inlet / outlet 121 communicates with the outside of the filter element 140. The filter element 140 is selected to have a hollow cylindrical structure. The first connecting column 123 and the second connecting column 131 are respectively inserted into both ends of the filter element 140, playing a role in connection and fixation, and improving the installation stability of the filter element 140. In this optimized solution, a plurality of grooves are provided on both the first connecting column 123 and the second connecting column 131, and sealing rings are disposed within the grooves. The sealing rings seal the inner side of the filter element 140. The function of the sealing rings is to prevent unfiltered water from directly entering the interior of the filter element 140, improving the filtering and purification effect. To facilitate the replacement of the filter element 140, the water outlet connecting member 130 is threadedly connected to the first housing 110, and anti-slip threads are provided on the outer side of the water outlet connecting member 130.

[0028] In this optimized solution, a plurality of grooves are provided on both the first connecting column 123 and the second connecting column 131, and sealing rings are disposed within the grooves. The sealing rings seal the inner side of the first housing 110. The function of the grooves and the sealing rings is to seal the gaps between the first housing 110 and the water inlet connecting member 120 and the water outlet connecting member 130, preventing water from overflowing.

[0029] In an optimized solution, as Figure 7 and Figure 8 shown, the structure of the clamping assembly 300 is specifically defined. The clamping assembly 300 includes: A connecting frame 310, which is fixedly disposed on the faucet body 100; A clamping seat 320, which is disposed on the connecting frame 310; A spray head mounting seat 330, which is snapped into the clamping seat 320. The spray head mounting seat 330 is used to dock with the pull-out spray head 220 of the pull-out assembly 200. The interior of the spray head mounting seat 330 is hollow, and the hose 210 of the pull-out assembly 200 passes through the spray head mounting seat 330.

[0030] In this optimization solution, the connecting frame 310 is the support frame of the clamping component 300 of this optimization solution, and is horizontally arranged on one side of the faucet body 100. One end of the connecting frame 310 is fixed on the faucet body 100, and the other end is fixedly connected to the clamping seat 320. The clamping seat 320 is detachably installed with the nozzle mounting seat 330. Specifically, the nozzle mounting seat 330 is snapped into the clamping seat 320 by a clamping method. When the pull-out nozzle 220 is in use, it needs to be disassembled from the nozzle mounting seat 330, and when it is not in use, it needs to be fixed on the nozzle mounting seat 330. Frequent disassembly and assembly are likely to cause mechanical damage. Therefore, in this embodiment, a detachable nozzle mounting seat 330 is provided - when replacement is needed, the nozzle mounting seat 330 can be directly replaced, without replacing the entire faucet outlet elbow, reducing the cost of later maintenance.

[0031] In an optimization solution, as Figure 9 and Figure 10 shown, the structure of the clamping seat 320 is specifically defined. The clamping seat 320 includes: The second housing 321 is fixedly installed on the connecting frame 310; The elastic piece 322 is arranged inside the second housing 321. The clamping portion of the elastic piece 322 extends out of the second housing 321 and is clamped with the nozzle mounting seat 330; The cover 323 covers the second housing 321 and fixes the elastic piece 322 inside the second housing 321.

[0032] In this optimization solution, the elastic piece 322 is fixedly installed inside the second housing 321. Two round holes are provided on the elastic piece 322. The cover 323 seals the bottom of the second housing 321. The elastic piece 322 is fixed inside the second housing 321 by passing a pin or a bolt through the cover 323, the elastic piece 322 and the second housing 321 in sequence. The elastic piece 322 is not completely surrounded by the second housing 321, and a part of the elastic piece 322 extends out of the second housing 321. As Figure 10 shown, the second housing 321, the elastic piece 322 and the cover 323 are all in a "C" - shaped structure, and this structure is beneficial to clamping the cylindrical nozzle mounting seat 330. The structure of the clamping seat 320 given in this embodiment is simple, convenient to install, and can stably fix the nozzle mounting seat 330. In addition, a slot is provided on the second housing 321, which is inserted into the connecting frame 310 and fixed by a bolt or a pin.

[0033] In an optimization solution, as Figure 9 and Figure 10 shown, the structure of the nozzle mounting seat 330 is specifically defined. The nozzle mounting seat 330 includes: The clamping post 331 is snapped into the elastic piece 322; The upper seat 332 is fixedly arranged at the upper end of the clamping post 331, and its lower end abuts against the second housing 321. The lower seat 333 is fixedly arranged at the lower end of the clamping post 331, and its upper end abuts against the second housing 321; a docking portion for docking with the pull-out nozzle 220 is arranged at the lower end of the lower seat 333. The upper seat 332, the clamping post 331, and the lower seat 333 are all hollow inside, for allowing the hose 210 of the pull-out faucet to pass through.

[0034] Internal threads are provided at the bottom of the lower seat 333 for installing the pull-out nozzle 220, and a plurality of symmetric grooves are arranged on the lower end surface of the lower seat 333 for positioning the pull-out nozzle 220.

[0035] In this optimized solution, the upper seat 332 and the lower seat 333 are substantially symmetric with respect to the clamping post 331, and the outer diameters of the upper seat 332 and the lower seat 333 are larger than the outer diameter of the clamping post 331, so that the second housing 321 of the clamping seat 320 can be clamped between the upper seat 332 and the lower seat 333 to achieve stable fixation. Internal threads are provided at the bottom of the lower seat 333 for installing the pull-out nozzle 220. A plurality of symmetric grooves are arranged on the lower end surface of the lower seat 333 for positioning the pull-out nozzle 220.

[0036] Working principle: Water flows through the valve core, passes through the first water inlet and outlet 121 of the water inlet connector 120, and the unfiltered water surrounds the outer periphery of the filter element 140; water continuously penetrates into the filter element 140 and enters the interior of the filter element 140 to form pure water; the pure water is led out through the second water inlet and outlet 132 of the water outlet connector 130, enters the hose 210, and sprays out from the pull-out nozzle 220.

[0037] During installation, the clamping seat 320 is pre-installed and fixed by inserting it into the connecting frame 310; then the nozzle mounting seat 330 is snapped into the C-shaped elastic piece 322, and the elastic piece 322 is slightly expanded outward under force; when the nozzle mounting seat 330 is completely snapped in, the elastic piece 322 resumes its original shape, and the lower end of the upper seat 332 and the upper end of the lower seat 333 respectively abut against both sides of the second housing 321 to achieve fixation; then the pull-out nozzle 220 is connected to the lower seat 333 and is threadedly connected to the bottom of the lower seat 333. When replacement is needed, the nozzle mounting seat 330 can be directly disassembled without replacing the entire water outlet elbow.

[0038] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0039] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A pull-out faucet, characterized in that: The pull-out faucet comprises: The faucet body is provided with a filter element, a water inlet connector and a water outlet connector inside, the two ends of the filter element are respectively connected to the water inlet connector and the water outlet connector, the outer side of the filter element is connected to the first water inlet and outlet of the water inlet connector, and the inner side of the filter element is connected to the second water inlet and outlet of the water outlet connector; A pull-out assembly, connected to the water outlet connector, for conducting water flow; The clamping assembly is arranged on the outside of the faucet body and is used for clamping the pull-out spray head of the pull-out assembly.

2. The pull-out faucet according to claim 1, characterized in that: The faucet body comprises: a first shell; A valve core is arranged in the first housing; A water inlet connector, disposed in the first housing and connected to the water outlet end of the valve core; A water outlet connector is installed at the water outlet end of the first shell; the water inlet connector and / or the water outlet connector is detachably connected to one end of the first shell; The filter element is installed between the water inlet connector and the water outlet connector.

3. The pull-out faucet according to claim 1 or 2, characterized in that: The water inlet connector is provided with: A first water inlet and outlet, arranged on one side of the water inlet connector; A positioning plate, arranged at one side of the first water inlet and outlet, the positioning plate being connected to and supporting one end of the filter element; The first connecting column is arranged on a side away from the first water inlet and outlet, and the first connecting column is inserted into the interior of the filter element.

4. The pull-out faucet according to claim 3, characterized in that: The water outlet connector is provided with: A second connecting column, arranged on the water outlet connecting piece and inserted into the interior of the filter element; The second water inlet and outlet are arranged in the second connecting column and communicated with the interior of the filter element.

5. The pull-out faucet according to claim 4, characterized in that: The first connecting column and the second connecting column are both provided with a plurality of grooves, and sealing rings are provided in the grooves, and the sealing rings seal the inner side of the filter element.

6. The pull-out faucet according to claim 1, characterized in that: The first shell is provided with an observation port, and a sealing tube is sleeved inside the first shell to block the observation port, and the sealing tube is made of transparent material.

7. The pull-out faucet according to claim 1, characterized in that: The clamping assembly comprises: A connecting frame, used for being fixedly arranged on the faucet body; A card connector, arranged on the connecting frame; The nozzle mounting seat is inserted into the clamping seat. The nozzle mounting seat is used to connect the pull-out nozzle of the pull-out assembly. The nozzle mounting seat is hollow inside, and the hose of the pull-out assembly passes through the nozzle mounting seat.

8. The pull-out faucet according to claim 7, characterized in that: The card connector comprises: A second housing is fixedly mounted on the connecting frame; A spring sheet is arranged inside the second shell, and a clamping portion of the spring sheet extends out of the second shell and is clamped with the nozzle mounting seat; The cover covers the second shell and fixes the spring piece inside the second shell.

9. The pull-out faucet according to claim 8, characterized in that: The nozzle mounting seat comprises: A clamping post, clamped into the spring sheet; An upper seat, fixedly arranged at the upper end of the clamping column, with a lower end abutting against the second shell; The lower seat is fixedly arranged at the lower end of the clamping column, and the upper end thereof abuts against the second shell; the lower end of the lower seat is provided with a docking portion for docking the pull-out spray head, and the upper seat, the clamping column and the lower seat are all hollow inside to allow the hose of the pull-out faucet to pass through.

10. The pull-out faucet according to claim 9, characterized in that: The bottom of the lower seat is provided with an internal thread for installing the pull-out spray head, and the lower end surface of the lower seat is provided with a plurality of symmetrical grooves for positioning the pull-out spray head.

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