A pull-out faucet

Abstract

The present invention relates to the technical field of fluid switches, and in particular to a pull-out faucet, which is configured to provide tap water and purified water, and comprises: a shell; an adapter, which is arranged on the shell along the axial direction of the shell, and the adapter comprises a first cavity for a tap water pipe to be extracted and passed through, and a second cavity connected to a purified water pipe; a tap water supply mechanism, which comprises a support, and the tap water pipe can be passed through the support and supported by the support, and the support is configured to be able to rotate relative to the adapter but cannot move axially; a water outlet, which is sleeved on the adapter and can rotate relative to the adapter, and the water outlet is connected to the second cavity to supply purified water discharged through the adapter to a user; a body, which is arranged in the shell, and the body is configured to have an inlet end and an outlet end to import and export tap water and purified water; a cover, which is located on a side of the adapter away from the shell, and the cover is sleeved on the adapter and limits the axial movement of the water outlet.

Description

Technical Field

[0001] The invention relates to the technical field of fluid switches, and in particular to a draw-out faucet. Background Art

[0002] Existing extractable faucets usually only supply tap water or purified water, and cannot achieve dual-way water supply. The Chinese patent CN206617612U authorized on November 7, 2017 discloses a spring-pull-down faucet structure, which includes a plastic body, a plastic thin shell, a control valve group and a water outlet assembly. There is only a single water supply in the faucet, which cannot achieve dual water supply of purified water and tap water. The tap water used in life is usually treated by processes such as sedimentation, chlorination disinfection, and filtration, but the chlorination method for disinfecting tap water still has certain disadvantages, such as heavy metal pollution, poor quality of water pipe networks, and secondary pollution leading to carcinogenicity and teratogenicity. With the continuous improvement of the quality of life, people's requirements for water quality are getting higher and higher, and purified water (also known as direct drinking water) has gradually become an important choice for residents' drinking water. Due to the lack of dual-way water supply faucets, users can only choose to add additional faucets to supply purified water, or add direct drinking water dispensers.

[0003] Based on this, relevant technical personnel are still committed to designing a pull-out faucet to overcome the defects of the prior art. Summary of the invention

[0004] Therefore, the object of the present invention is to provide a faucet by which the above-mentioned disadvantages of the prior art are overcome.

[0005] In order to accomplish the above-mentioned task, the present invention provides a pull-out faucet, which is configured to provide tap water and purified water, and the faucet comprises: a shell; an adapter, which is arranged on the shell along the axial direction of the shell, and the adapter comprises a first cavity for a tap water pipe to be extractably passed through and a second cavity connected to a purified water pipe; a tap water supply mechanism, which comprises a support, and the tap water pipe can be passed through the support and supported by the support, and the support is configured to be rotatable relative to the adapter but unable to move axially; a water outlet, which is sleeved on the adapter and can rotate relative to the adapter, and the water outlet is connected to the second cavity to supply purified water derived from the adapter to a user; a body, which is arranged in the shell, and the body is configured to have an inlet end and an outlet end to introduce and export tap water and purified water; a cover, which is located on a side of the adapter away from the shell, and the cover is sleeved on the adapter and limits the axial movement of the water outlet.

[0006] Preferably, the faucet further comprises a sleeve, wherein the support member is partially inserted into the sleeve and can rotate relative to the sleeve but cannot move axially, and an end of the sleeve away from the support member is inserted into the adapter seat and is configured to rotate relative to the adapter seat but cannot move axially.

[0007] Preferably, the faucet further includes: a bracket, which is configured to carry the support and enable the support to rotate therewith, and the support can rotate relative to the bracket but cannot move axially; a sleeve, one end of which is inserted into the adapter seat and can rotate relative to the adapter seat but cannot move axially, and the other end of the sleeve is fixedly connected to the bracket and can rotate therewith.

[0008] Preferably, the support member includes: a support seat, which is provided with an annular groove on the circumferential surface; a spring support tube, which is connected to the support seat, and the tap water pipe can pass through the spring support tube and be supported by the spring support tube; a limit member, which is partially inserted in the annular groove of the support seat, and the limit member is configured to move along the annular groove and limit the axial movement of the support seat when the support seat rotates.

[0009] Preferably, the faucet further comprises a limit wear-resistant part, which is arranged at one end of the adapter away from the shell, the cover is threadedly engaged with the adapter and presses the wear-resistant limit part into place, and the wear-resistant limit part is inserted into the sleeve to axially limit the axial movement of the sleeve relative to the adapter.

[0010] Preferably, the water outlet part includes: a seat body, which is sleeved on the adapter seat and defines an annular cavity together with the adapter seat, and the annular cavity is connected to the second cavity; a tube body, which extends radially from the seat body and connects to the annular cavity; the seat body is configured to be rotatable relative to the adapter seat.

[0011] Preferably, a gripping portion is provided at one end of the bracket away from the sleeve, and the gripping portion is configured to accommodate a water nozzle, the water nozzle is connected to a water pipe that can pass through the support, and the water nozzle can rotate with the bracket.

[0012] Preferably, the main body includes: a tube body connecting part, to which is connected an inlet pipe and an outlet pipe for tap water and an inlet pipe and an outlet pipe for purified water; a fluid conducting port, which is arranged on the main body at an angle relative to the tube body connecting part, and includes an inlet and an outlet for tap water and an inlet and an outlet for purified water, and the fluid conducting port is connected one-to-one with each tube connected to the tube body connecting part.

[0013] Preferably, the tube body connection portion is arranged in a direction away from the adapter, the pure water outlet pipe can be connected to the pure water pipe through an adapter, and the pure water pipe can be connected to the adapter.

[0014] Preferably, the tube body connection part includes: a first connection part, which is arranged in a direction toward the adapter and connected to the pure water outlet pipe, the pure water outlet pipe is connected to the adapter, and the pure water pipe can be constructed as the pure water outlet pipe; a second connection part, which is arranged in a direction away from the adapter and connected to the pure water inlet pipe, the tap water inlet pipe, and the outlet pipe.

[0015] Some of the other features and advantages of the present invention will be apparent to those skilled in the art after reading the present invention, and the other parts will be described in the following specific embodiments in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The embodiments of the present invention are described in detail below with reference to the accompanying drawings, wherein:

[0017] Figure 1 is a three-dimensional diagram of the pull-out faucet of the present invention;

[0018] Figure 2 is an exploded view of the pull-out faucet of the present invention;

[0019] Figure 3 It is a partial assembly schematic diagram of the pull-out faucet of the present invention;

[0020] Figure 4 It is a partial exploded schematic diagram of the draw-out faucet of the present invention in the case of pure water return;

[0021] Figure 5 It is a partial exploded schematic diagram of the pull-out faucet of the present invention when the pure water is not turned back;

[0022] Figure 6 is a three-dimensional diagram of the adapter of the pull-out faucet of the present invention;

[0023] Figure 7 It is a schematic diagram of the assembly of the adapter and the housing of the pull-out faucet of the present invention;

[0024] Figure 8 It is a schematic diagram of the adapter being equipped with a pure water pipe in the case of pure water return;

[0025] Fig. 9 It is a schematic diagram of the assembly of the adapter, the main body and the pure water pipe when the pure water is not turned back;

[0026] Fig.10It is a side cross-sectional view of the assembly of the housing, the water outlet, the cover, and the adapter of the pull-out faucet of the present invention;

[0027] Fig.11 It is a schematic diagram of the cooperation between the tap water pipe, the pure water pipe and the adapter of the pull-out faucet of the present invention;

[0028] Fig.12 It is a schematic diagram of the assembly of the support member and the bracket of the pull-out faucet of the present invention;

[0029] Fig.13 is a three-dimensional diagram of the body of the pull-out faucet of the present invention;

[0030] Fig.14 is a three-dimensional diagram of the body of the pull-out faucet of the present invention;

[0031] Fig.15 It is a schematic diagram of the main body of the pull-out faucet of the present invention, the pipes for supplying tap water, and the pipes for supplying pure water when the pure water is not turned back;

[0032] Fig.16 It is a schematic diagram of the main body of the pull-out faucet of the present invention, the pipes for supplying tap water, and the pipes for supplying pure water when pure water is turned back. DETAILED DESCRIPTION

[0033] The exemplary scheme of the pull-out faucet according to the present invention is now described in detail with reference to the accompanying drawings. The accompanying drawings are provided to present multiple embodiments of the present invention, but the accompanying drawings do not have to be drawn according to the size of the specific implementation scheme, and certain features may be enlarged, removed or partially cut away to better illustrate and explain the disclosure of the present invention. Some components in the accompanying drawings can be adjusted in position according to actual needs without affecting the technical effect. The phrase "in the accompanying drawings" or similar terms appearing in the specification do not necessarily refer to all drawings or examples.

[0034] Certain directional terms used to describe the drawings below, such as "inner", "outer", "upper", "lower" and other directional terms will be understood to have their normal meanings and refer to those directions involved when the drawings are normally viewed. Unless otherwise specified, the directional terms described in this specification are basically in accordance with the conventional directions understood by those skilled in the art.

[0035] The terms "first", "first", "second", "second" and the like used in the present invention do not indicate any order, quantity or importance, but are used to distinguish one component from other components.

[0036] The present invention provides a pull-out faucet 1, and in particular provides a spring pull-out faucet 1, such as Figure 1-16As shown, the faucet includes a housing 2, an adapter 3, a tap water supply mechanism (especially a support 4), a water outlet 5, a body 6 and a cover 7. The housing 2 is configured as a three-way pipe body 52. ​​The direction of the housing 2 is described with reference to the faucet shown in the figure, which is only exemplary and not restrictive. Those skilled in the art can also arrange the housing 2 in other ways according to actual use requirements and installation environment.

[0037] See also Figure 7 The housing 2 is provided with a supporting wall 20 at the top end, and the supporting wall 20 is configured as a flange extending radially inwardly of the housing 2, and the flange has a substantially U-shaped escape opening to escape the pure water pipe 607 connected to the adapter 3 described below. The flange is provided with fixing holes on both sides of the escape opening, and the adapter 3 is seated on the flange and fixed to the housing 2 by the cooperation of fasteners (such as screws) and the fixing holes.

[0038] like Figures 6 to 11 As shown, the adapter 3 is schematically configured in a cylindrical shape, which includes a first cavity 30 and a second cavity 31. The first cavity 30 is used for the tap water pipe 606 to pass through, and the tap water pipe 606 can be reciprocated and reset in the first cavity 30, while the second cavity 31 is used to connect the pure water pipe 607, and the pure water pipe 607 can guide the pure water derived from the body 6 to the second cavity 31, and then the pure water is supplied to the user through the water outlet 5 described below.

[0039] Reference Figures 1 to 3 , Fig.11 , a water outlet 5 for supplying pure water is sleeved on the adapter seat 3 and can rotate relative to the adapter seat 3. Specifically, the water outlet 5 includes a seat body 50 and a tube body 52. ​​The seat body 50 is sleeved on the adapter seat 3 and defines an annular cavity 54 together with the adapter seat 3, and the annular cavity 54 is connected to the second cavity 31 of the adapter seat 3. The tube body 52 extends radially from the seat body 50 and is connected to the annular cavity 54. The seat body 50 of the water outlet 5 can rotate freely relative to the adapter seat 3, so that pure water can be provided to users at various positions, increasing the scope of use.

[0040] like Figures 1 to 3 , Fig.12As shown, the support member 4 can be an elastic support member, which includes a support seat 40, a spring support tube 42 and a stopper 44, and the spring support tube 42 is connected to the support seat 40. The two can be an integral part or a split part. In the embodiment where the two are detachable split parts, the spring support tube 42 can be threadedly connected to the support seat 40. In order to prevent the threaded engagement between the spring support tube 42 and the support seat 40 from loosening when the spring support tube 42 rotates with the support seat 40, an adhesive can be further used to assist in fixing them. The tap water pipe 606 can pass through the spring support tube 42 and be supported by the spring support tube 42. The tap water pipe 606 can move freely in the spring support tube 42, such as pulling and resetting. The water outlet end of the tap water pipe 606 can be connected to the tap water nozzle 92. The support seat 40 can rotate together with the spring support tube 42. The stopper 44 can limit the axial movement of the support seat 40 from the component supporting it in the axial direction, while not affecting the rotation of the support seat 40 relative to the component. Among them, the component can be an adapter seat 3, a sleeve 8 or a bracket 9. That is, the support seat 40 can be directly installed in the adapter seat 3, or installed in the sleeve 8, or installed in the bracket 9. The support member 4 will be described below in combination with various embodiments.

[0041] In one embodiment, the support seat 40 can be arranged in the housing 2. Specifically, the support seat 40 is stepped and can be placed in the adapter seat 3. The part placed on the adapter seat 3 can be regarded as the shaft part, and the part sitting on the adapter seat 3 can be regarded as the boss part. The shaft part of the support seat 40 is arranged with an annular groove in the circumferential direction, and the limiter passes through the adapter seat 3 and is positioned in the annular groove of the support seat 40, and the part of the limiter inserted into the annular groove is slightly smaller than the size of the annular groove. The limiter is, for example, a limit screw or other replaceable component with a limit function. When the support seat 40 rotates relative to the adapter seat 3, the axial movement of the support seat 40 is limited by the cooperation between the screw and the annular groove, but it does not interfere with the rotation of the support seat 40 relative to the adapter seat 3. In addition, wear-resistant parts can also be provided in the annular groove, and the axial width of the annular groove accommodating the wear-resistant parts can be designed to be wider and does not need to be limited by the size of the limiter. The screw can pass through the adapter seat 3 and extend into the wear-resistant part accommodated in the annular groove. The screw limits the axial displacement of the wear-resistant part but does not affect the rotation of the wear-resistant part. Specifically, the wear-resistant part also abuts against the flange (which defines an annular groove on the support seat 40) to apply the axial limitation of the wear-resistant part by the screw to the support seat 40, thereby also achieving the axial limitation of the support seat 40. The boss portion of the support seat 40 presses against the adapter seat 3, and a wear-resistant gasket can be arranged between the boss portion and the upper end of the adapter seat 3 to prevent excessive wear of the two when the support seat 40 rotates relative to the adapter seat 3.

[0042] In another embodiment, the faucet further comprises a sleeve 8, and the sleeve 8 is provided with joints at both ends, one of which is inserted in the adapter seat 3. The other joint of the sleeve 8 away from the adapter seat 3 is used to accommodate the support seat 40 of the support member 4, that is, the support seat 40 can be placed in the sleeve 8. The sleeve 8 can be provided with a support portion extending radially inward. The support seat 40 is seated on the support portion and can rotate relative to the sleeve 8 but cannot move axially. The support seat 40 is provided with an annular groove on the circumferential surface, and the limiting member passes through the sleeve 8 and is inserted into the annular groove, and the portion of the limiting member inserted into the annular groove is slightly smaller than the size of the annular groove. The limiting member is, for example, a limiting screw or other replaceable member with a limiting function. When the support seat 40 rotates relative to the sleeve 8, the screw passes through the annular groove of the rotating support seat 40, and the cooperation between the annular groove and the screw limits the axial movement of the support seat 40, but does not interfere with the rotation of the support seat 40 relative to the sleeve 8. In addition, a wear-resistant part can also be arranged in the annular groove, and the axial width of the annular groove accommodating the wear-resistant part can be designed to be relatively wide and does not need to be limited by the size of the limiter. The wear-resistant part (taking the wear-resistant ring as an example) can, on the one hand, avoid friction loss between the support seat 40 and the sleeve 8 when the support seat 40 rotates relative to the sleeve 8, and on the other hand, a radial hole can be arranged on the sleeve 8 to accommodate the limiter. Specifically, the screw passes through the adapter seat 3 and extends into the wear-resistant part. The screw limits the axial displacement of the wear-resistant part and presses the support seat 40 (especially the flange defining the annular groove on the support seat 40) against the support portion through the wear-resistant part, so that the support seat 40 can rotate relative to the sleeve 8 but cannot move axially.

[0043] The axial limit of the sleeve 8 relative to the adapter 3 is achieved in this way. The joint of the sleeve 8 is provided with a slot on the circumferential surface, and the adapter 3 is provided with a limit wear-resistant member 70 at the end away from the housing 2. The limit wear-resistant member 70, such as a limit gasket, can cooperate with the slot. Fig.11 . The limit gasket abuts against the upper end of the adapter seat 3, and the cover 7 (thread) mentioned above passes through the sleeve 8 and is engaged to the adapter seat 3, that is, the cover 7 is located on the side of the adapter seat 3 away from the shell 2, thereby pressing the limit gasket into place. Since the cover 7 fixes the limit gasket, the limit gasket can limit the up and down movement of the sleeve 8 when the sleeve 8 rotates relative to the adapter seat 3 (follows the rotation of the support seat 40). The cover 7 is arranged axially above the water outlet part 5, that is, it is farther away from the shell 2 than the water outlet part 5. Since the cover 7 is placed above the water outlet part 5 and the cover 7 is fixed relative to the adapter seat 3, and the adapter seat 3 is fixed on the shell 2, the water outlet part 5 is restricted by the cover 7 and cannot move in the axial direction.

[0044] In yet another embodiment, Figures 1 to 3 , Figure 5 , Fig.10 , Fig.12As shown, the faucet further includes a sleeve 8 and a bracket 9. The bracket 9 is used to carry the support member 4, specifically, the bracket 9 carries the support seat 40. The bracket 9 is partially inserted into the sleeve 8, especially (threaded) engaged with the joint at one end of the sleeve 8 away from the adapter seat 3, the joint has a ring built in, and the bracket 9 is threadedly connected with the ring to fix the bracket 9 to the sleeve 8. In order to prevent the bracket 9 from being separated from the sleeve 8 when rotating, an adhesive can be further applied to consolidate the connection between the bracket 9 and the sleeve 8, and the sleeve 8 can rotate with the bracket 9. In addition, the sleeve 8 and the bracket 9 can also be constructed as an integral part.

[0045] exist Fig.12 In the embodiment, an annular groove is arranged in the circumferential direction of the support seat 40, and a plug hole is arranged in the radial direction of the bracket 9. The limiter 44 passes through the plug hole and is inserted into the annular groove, so that when the support seat 40 rotates relative to the bracket 9, the limiter 44 moves along the annular groove, thereby meeting the rotation requirement of the support seat 40 and limiting the axial movement of the support seat 40 relative to the bracket 9. Since the bracket 9 supports the support seat 40, when the bracket 9 rotates, the support seat 40 can rotate with the bracket 9. However, the support seat 40 of the support member 4 can also rotate independently relative to the bracket 9 when the bracket 9 remains stationary.

[0046] like Figure 2 , 3 As shown, one end of the bracket 9 is rotatably positioned relative to the adapter 3, and the other end of the bracket 9 is provided with a grip 90, which is used to position and support the water nozzle 92 of the water pipe 606. The water nozzle 92 is placed in the grip 90 when not in use. Magnetic parts can be selectively provided on the grip 90 and the water nozzle 92 to facilitate the positioning of the grip 90. The water nozzle 92 in the grip 90 can rotate with the bracket 9, so that the user can switch to use tap water between different sinks. The water nozzle 92 can be optionally connected to the water pipe 606 in a threaded connection. The water pipe 606 passes through the spring support tube 42 after passing through the adapter 3. The spring support tube 42 forms a good support for the water pipe 606 and less restricts the rotation direction of the faucet when it is used, that is, it can achieve more precise adjustment, has a relatively wide deformation range, and has a wider range of application.

[0047] The spring support tube 42 includes a spring tube 420 and a support tube 422, which can be an integral part or a split part. Figure 2 , 12 As shown, the outer periphery of the support tube 422 is provided with a spiral groove extending along the axial direction thereof, and the spring tube 420 is fixedly connected with the support tube 422 by utilizing the spacing between the spring coils and the matching of the spiral groove (such matching is similar to threaded engagement). Specifically, the support tube 422 is threadedly engaged with the support seat 40, and the spring tube 420 is sleeved on the support tube 422.

[0048] The connector at the other end of the sleeve 8 is inserted into the adapter seat 3. As mentioned above, the connector is provided with a slot on the circumference, and a limiter (limiting gasket) is provided in the slot. Fig.11 As shown, the limiting gasket abuts against the upper end of the adapter seat 3, and the cover member 7 (thread) mentioned above passes through the sleeve 8 and is engaged to the adapter seat 3, thereby fixing the limiting gasket. Due to the fixing of the limiting gasket by the cover member 7 and the axial limiting of the limiting gasket to the joint, when the sleeve 8 rotates relative to the adapter seat 3 (following the rotation of the support seat 40), the possible up and down movement of the sleeve 8 is avoided.

[0049] See again Fig.11 The body 6 is arranged in the housing 2, specifically, it can be located on the side of the housing 2 away from the support 4 and roughly aligned with the radial side pipe of the housing 2. The body 6 includes an inlet end and an outlet end, and is mainly used to introduce and export fluid (tap water, purified water). The body 6 is usually matched with a valve core placed in the radial side pipe of the housing 2 to realize the on-off control of each water channel of the faucet.

[0050] Specifically, the body 6 includes a tube body connection portion 60 and a fluid conducting port 61. These tube body connection portions and the fluid conducting port can be regarded as the inlet and outlet ends of the body. Figures 13 to 16 As shown, the pipe body connection part 60 can connect the water inlet pipe 602 and the water outlet pipe 603 for tap water and the introduction pipe 600 and the outlet pipe 601 for pure water. The water inlet pipe 602 of tap water may include a cold water inlet pipe 602 and a hot water inlet pipe 602. The water outlet pipe 603 of tap water can be responsible for exporting cold water or hot water when there is only a single water inlet pipe 602, and can also be responsible for exporting mixed water mixed by the valve core when both the cold water inlet pipe 602 and the hot water inlet pipe 602 exist. Pure water is obtained by filtering and purifying the tap water supplied by the cold water inlet pipe 602 of tap water.

[0051] After the main body 6 is installed in the shell 2, the tube body connection part 60 is usually arranged along the axial direction of the shell 2, and the fluid conduction port 61 is usually arranged along the radial direction of the shell 2, that is, aligned with the radial side tube of the shell 2. Because the tube body 52 is usually arranged in the axial direction of the shell 2, and the valve core is generally arranged in the radial direction of the shell 2, the fluid conduction port 61 of the main body 6 needs to cooperate with the corresponding flow guide port on the valve core to realize the on-off control of the water path by the valve core. However, the positional relationship between the fluid conduction port 61 and the tube body connection part 60 is not limited to the situation described above. The fluid conduction port 61 can be arranged at an angle relative to the tube body connection part 60, and the angle is not limited to 90 degrees. The fluid conduction port 61 includes conduction ports for water pipes for tap water and purified water connected to the tube body connection part 60 that correspond one to one. Specifically, these conducting ports may be a water inlet 614 for tap water (one or two, when there are two water inlets 614, they may be a cold water inlet 614 and a hot water inlet 614 respectively, in the present invention, a main body 6 having two tap water inlets 614 is described as an example), a water outlet 616 (also referred to as a mixing water port), and an inlet 610 and an outlet 612 for pure water.

[0052] In one embodiment, the tube body connection portion 60 is arranged downward in the shell 2, that is, arranged in a direction away from the adapter 3. The outlet pipe 601 of pure water is connected to the pure water pipe 607 through an adapter arranged under the table, and then the pure water pipe 607 is connected to the second cavity 31 of the adapter 3. The pure water flows through the second cavity 31 to the annular cavity 54 and then enters the tube body 52 of the water outlet 5 to realize the supply of pure water. Specifically, the adapter 3 connects the second cavity 31 to the annular cavity 54 through an outlet arranged in its radial direction. Of course, the outlet is not limited to being arranged in the radial direction, and those skilled in the art can make adaptive adjustments according to actual needs.

[0053] The adapter is mainly used in the case where pure water is returned under the table and then supplied to the user, such as Fig.14 As shown, the adapter includes three inner cavities, which are respectively connected to the pure water inlet pipe 600, the outlet pipe 601, and the pure water pipe 607. Among them, the inner cavities of the pure water outlet pipe 601 and the pure water pipe 607 are connected to change the flow direction of the pure water exported through the body 6 before supplying it. The setting of pure water returning under the table and then supplying it to the user is mainly to facilitate the pure water pipe 607 to rotate with the adapter 3.

[0054] In another embodiment, see Fig.13 , Fig.15, the tube body connection part 60 includes a first connection part 604 and a second connection part 605. Among them, the first connection part 604 is located above the main body 6 when the main body 6 is arranged along the axial direction of the shell 2, that is, it is arranged toward the adapter seat 3, and the second connection part 605 is located below the main body 6 at this time, that is, it is arranged away from the adapter seat 3. The first connection part 604 is used to connect the outlet pipe 601 of pure water. In this embodiment, the pure water no longer undergoes the under-table return, but is directly guided to the second cavity 31 of the adapter seat 3 through the outlet pipe 601 of pure water. Here, the outlet pipe 601 of pure water can also be called a pure water pipe 607. The second connection part 605 can be used to connect the pure water inlet pipe 600, the tap water inlet pipe 602 (cold inlet pipe 602, hot inlet pipe 602), and the outlet pipe 603 (mixing water pipe).

[0055] In the above embodiment, the water inlet pipe 602 of the tap water can be fixed to the body 6 by threaded connection. Fig.16 As shown, in the example of pure water under-counter return, the joint ends of the pure water inlet pipe 600, outlet pipe 601 and the tap water mixing pipe are sleeved with metal sheets, and after the joint ends are inserted into the corresponding connecting parts, the metal sheets are fixed to the body 6 by screws, thereby fixing the pure water inlet pipe 600, outlet pipe 601 and the tap water mixing pipe to the body 6. In the example where the pure water does not need to be under-counter returned, the pure water inlet pipe 600 and the tap water mixing pipe are fixedly connected to the body 6 in this way.

[0056] The body 6 is concave at one side away from the fluid conducting port 61 to form an escape zone 62. The pipe body connecting portion 60 may be arranged partially around the escape zone 62 or the pipe body connecting portion 60 may be arranged to form the escape zone 62. Fig.13 The avoidance area 62 is mainly used to accommodate the tap water pipe 606 (also called the extraction pipe) and the pure water outlet pipe 601 (in the case where the pure water undergoes a return under the stage). The extraction pipe is provided with a ferrule and a weight. The weight facilitates the resetting of the extraction pipe, and the ferrule is used to place the weight.

[0057] exist Figures 1 to 2 In the embodiment, the housing 2 is also provided with an indicator light to remind the user whether the pure water filter element should be replaced in time.

[0058] The following schematically describes the installation process of the pull-out faucet of the present invention, wherein only an embodiment in which the faucet includes both the sleeve 8 and the bracket 9 is described.

[0059] Assemble the main body 6 with the tap water inlet pipe 602, outlet pipe 603 and the purified water inlet pipe 600, outlet pipe 601, and selectively install the purified water outlet pipe 601 and adapter according to the two embodiments of under-counter folding and non-folding of purified water.

[0060] The main body 6 with multiple tubes is installed in the shell 2 from the bottom of the shell 2, and the installation of the main body 6 and the shell 2 is mainly achieved by clamping the part of the main body 6 facing the valve core (the seat part of the main body 6) with the fluid conducting port 61 on the shell 2 (especially the flange arranged in the radial cavity of the shell 2).

[0061] Install the valve core into the radial side tube of the housing 2 so that each flow guide port of the valve core corresponds to each flow guide port on the main body 6. The valve core is engaged with the radial side tube of the housing 2 by a threaded clamping ring and a valve cover, so as to realize the positioning of the valve core relative to the housing 2. The handle is connected to the valve core and controls the flow of the fluid by controlling the valve stem of the valve core. Since two water circuits are provided, the control of the fluid by the valve core is also divided into two zones, such as the tap water control zone and the pure water control zone. In the respective control zones, users can only control the tap water or pure water accordingly without affecting the flow of the other water circuit, and at the same time, it will not cause the contamination of the pure water by the tap water.

[0062] The adapter seat 3 is fixed to the housing 2 by screws, and then the water outlet 5 is sleeved on the adapter seat 3, the cover 7 is sleeved on the sleeve 8, and the sleeve 8 is inserted into the adapter seat 3. The position-limiting wear-resistant part 70 is clamped in the clamping groove provided on the peripheral surface of the sleeve 8, so that the cover 7 is threadedly engaged with the adapter seat 3, and the position-limiting wear-resistant part 70 is pressed against the top of the adapter seat 3. The threaded cover 7 and the adapter seat 3 fix the position-limiting wear-resistant part 70 in place, and the sleeve 8 can only rotate relative to the adapter seat 3 under the action of the position-limiting wear-resistant part 70 but cannot move axially.

[0063] The bracket 9 is placed in the sleeve 8, and the bracket 9 is threadedly engaged with the joint at the top of the sleeve 8. The spring tube 420, the support tube 422 and the support seat 40 are assembled to form the support member 4. The support member 4 (especially the shaft portion of the support seat 40) is placed in the bracket 9. The bracket 9 is provided with an opening in the radial direction. During installation, the opening is aligned with the annular groove provided on the peripheral surface of the support seat 40, so that the limit screw is inserted through the opening and the support seat 40 is axially positioned relative to the bracket 9 by the limit screw. After the screw is installed, the opening can be sealed with a rubber plug to prevent foreign matter from entering.

[0064] The tap water pipe 606 passing through the adapter 3 continues to pass through the sleeve 8, the bracket 9, the support seat 40, the spring support tube 42, and then connects to the tap water nozzle 92. The pure water pipe 607 is installed to the adapter 3 in two situations: folding back and not folding back. Specifically, the pure water pipe 607 passes through the supporting wall 20 of the shell 2 and the connector of the pure water is clamped on the supporting wall 20. While the adapter 3 is fixed to the supporting wall 20, the connector of the pure water pipe 607 is inserted into the adapter 3. The screw passes through the adapter 3 and is engaged with the supporting wall 20 of the shell 2. In this way, the screw can both fix the adapter 3 and prevent the pure water pipe 607 from being detached from the adapter 3 and leaking.

[0065] The housing 2 is placed on the table and fixed relative to the table by a base, and the mounting pipe is threadedly engaged with the base. The base has a guide structure to facilitate the replacement of pipes in various waterways.

[0066] The pull-out faucet of the present invention integrates dual water channels including tap water and purified water, which no longer requires users to install additional faucets or additional direct drinking water dispensers, saving the user's usage costs and meeting the user's many requirements for high efficiency, convenience, and easy operation of the pull-out faucet. In the present invention, separate water outlet structures for tap water and purified water are provided, the tap water pipe can be separated from the bracket and moved or rotated with the bracket, and the pure water outlet can be rotated independently. The use of tap water and purified water can be achieved independently without affecting each other.

[0067] When using tap water, the tap water nozzle can be taken out from the grip of the bracket, and the tap water nozzle can be connected to the tap water pipe and pulled out from the spring support tube. The pull-out faucet of the present invention is more flexible than the ordinary hard tube pull-out faucet. When the tap water nozzle is placed on the bracket, the rotating bracket can realize the use of tap water in different positions, and the support member rotates with the bracket. When the tap water nozzle is separated from the bracket, the use of tap water in different positions allows the support member to rotate horizontally independently relative to the bracket. Due to the spring tube of the support member, the faucet of the present invention is also more widely used in the vertical direction than the ordinary hard tube pull-out faucet, and the faucet can even basically achieve universal rotation, and it can even be used to clean large civil or industrial products. In addition, the grip of the bracket overcomes the elastic force of the spring tube to hold the tap water nozzle. After fixing the tap water nozzle, the user can freely free his hands during the cleaning process.

[0068] Although the present invention is described in detail with only a limited number of embodiments, it should be readily understood that the present invention is not limited to such disclosed embodiments. On the contrary, the present invention may be modified by incorporating any number of previously undescribed variations, changes, substitutions or equivalent devices, but this is comparable to the spirit and scope of the present invention. In addition, although various different embodiments of the present invention have been described, it is understood that aspects of the present invention may include only some of the embodiments. Therefore, the present invention is not considered to be limited by the foregoing description, but is only limited by the appended claims.

[0069] Reference numerals list

[0070] 1-Pull-out faucet 601-export pipe

[0071] 2- Shell 602- Water inlet pipe

[0072] 20-support wall 603-water outlet pipe

[0073] 3-Adapter 604-First connection part

[0074] 30-first cavity 605-second connection part

[0075] 31-Second chamber 606-Water pipe

[0076] 4-Support 607-Pure water pipe

[0077] 40-support seat 61-fluid conduction port

[0078] 42- Spring support tube 610- Introduction port

[0079] 420-spring tube 612-export port

[0080] 422-support pipe 614-water inlet

[0081] 44-limiting piece 616-water outlet

[0082] 5-Water outlet 62-avoidance area

[0083] 50-seat body 7-cover

[0084] 52-tube body 70-limit wear-resistant parts

[0085] 54-ring cavity 8-casing

[0086] 6-body 9-bracket

[0087] 60-tube connection part 90-grip part

[0088] 600-introduction pipe 92-tap water nozzle

Claims

1. A draw-out faucet (1), the faucet (1) being configured to provide tap water and purified water, characterized in that: The faucet (1) comprises: Housing (2); an adapter seat (3), the adapter seat (3) being arranged on the shell (2) along the axial direction of the shell (2), the adapter seat (3) comprising a first cavity (30) for a tap water pipe (606) to be withdrawable through, and a second cavity (31) connected to a pure water pipe (607); A tap water supply mechanism, the tap water supply mechanism comprising a support member (4), the tap water pipe (606) being able to pass through the support member (4) and being supported by the support member (4), the support member (4) being configured to be able to rotate relative to the adapter seat (3) but unable to move axially; a water outlet member (5), the water outlet member (5) being sleeved on the adapter seat (3) and being rotatable relative to the adapter seat (3), the water outlet member (5) being in communication with the second chamber (31) so as to supply the pure water discharged through the adapter seat (3) to a user; A body (6), the body (6) being arranged in the housing (2), the body (6) being configured to have an inlet end and an outlet end for introducing and exporting tap water and purified water; the body (6) also having a pipe body connecting portion (60), the pipe body connecting portion (60) being connected with a water inlet pipe (602) and a water outlet pipe (603) for tap water and an introduction pipe (600) and an outlet pipe (601) for purified water; A cover member (7), the cover member (7) being located on a side of the adapter seat (3) away from the housing (2), the cover member (7) being sleeved on the adapter seat (3) and limiting the axial movement of the water outlet member (5); A bracket (9), wherein the bracket (9) is configured to carry the support member (4) and enable the support member (4) to rotate therewith, and the support member (4) can rotate relative to the bracket (9) but cannot move axially; A sleeve (8), wherein the support member (4) is partially inserted into the sleeve (8) and can rotate relative to the sleeve (8) but cannot move axially; one end of the sleeve (8) is inserted into the adapter seat (3) and can rotate relative to the adapter seat (3) but cannot move axially, and the other end of the sleeve (8) is fixedly connected to the bracket (9) and can rotate with the bracket (9); Wherein, the support member (4) comprises: A support seat (40), wherein the support seat (40) is provided with an annular groove on its circumferential surface; A spring support tube, the spring support tube being connected to the support seat (40), the water pipe (606) being able to pass through the spring support tube and being supported by the spring support tube; A limiting member (44) is partially inserted into the annular groove of the support seat (40), and the limiting member (44) is configured to move along the annular groove and limit the axial movement of the support seat (40) when the support seat (40) rotates.

2. The faucet (1) according to claim 1, characterized in that: The faucet (1) further comprises a position-limiting wear-resistant part (70), wherein the position-limiting wear-resistant part (70) is arranged at one end of the adapter seat (3) away from the shell (2), the cover member (7) is threadedly engaged with the adapter seat (3) and presses the position-limiting wear-resistant part (70) into place, and the position-limiting wear-resistant part (70) is inserted into the sleeve (8) to limit the axial movement of the sleeve (8) relative to the adapter seat (3) in the axial direction.

3. The faucet (1) according to claim 1, characterized in that: The water outlet member (5) comprises: A seat body (50), wherein the seat body (50) is sleeved on the adapter seat (3) and defines an annular cavity (54) together with the adapter seat (3), wherein the annular cavity (54) is communicated with the second cavity (31); A tube body (52), the tube body (52) extending radially from the seat body (50) and communicating with the annular cavity (54); The seat body (50) is configured to be rotatable relative to the adapter seat (3).

4. The faucet (1) according to claim 1, characterized in that: A gripping portion (90) is provided at one end of the bracket (9) away from the sleeve (8), and the gripping portion (90) is configured to accommodate a water nozzle (92). The water nozzle (92) is connected to a water pipe (606) that can pass through the support, and the water nozzle (92) can rotate with the bracket (9).

5. The faucet (1) according to claim 3, characterized in that: The body (6) comprises: A fluid conducting port (61), the fluid conducting port (61) being arranged on the main body (6) at an angle relative to the tube body (52) connecting piece, the fluid conducting port (61) comprising a water inlet (614) and a water outlet (616) for tap water and an inlet (610) and an outlet (612) for pure water, the fluid conducting port (61) being in one-to-one communication with each tube connected to the tube body connecting portion (60).

6. The faucet (1) according to claim 5, characterized in that: The tube body connection portion (60) is arranged in a direction away from the adapter seat (3); the pure water outlet pipe (601) can be connected to the pure water pipe (607) through an adapter; and the pure water pipe (607) can be connected to the adapter seat (3).

7. The faucet (1) according to claim 5, characterized in that: The tube body connecting portion (60) comprises: A first connection portion (604), the first connection portion (604) being arranged in a direction toward the adapter (3) and connected to the pure water outlet pipe (601), the pure water outlet pipe (601) being connected to the adapter (3), and the pure water pipe (607) being capable of being constructed as the pure water outlet pipe (601); The second connection part (605) is arranged in a direction away from the adapter (3) and connects the pure water inlet pipe (600), the tap water inlet pipe (602), and the outlet pipe (603).

Images