Water faucet

Abstract

The invention discloses a faucet, and relates to the technical field of water heating pipelines. The device comprises a shell, a main body and a screw, a containing cavity is formed in the shell, the main body is embedded in the containing cavity, and a first containing groove and a water outlet channel communicated with a liquid path of the first containing groove are formed in the main body. One part of the screw rod is embedded in the containing cavity and is in threaded connection with the shell, a second containing groove is formed in the end face, close to the main body, of the screw rod, a water inlet channel communicated with a liquid path of the second containing groove is further formed in the screw rod, and the water inlet channel is communicated with the water inlet channel. The first containing groove and the second containing groove are matched to form a filtering cavity, and the filtering cavity is used for assembling a filtering device. Therefore, the filter cavity for mounting the filter element can be formed through the matching of the main body and the screw rod, the space occupied by the external hanging of the filter device can be greatly reduced, and the replacement convenience of the filter element is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of water heating pipes, in particular to a faucet. Background Art

[0002] As people's living standards gradually improve and water quality issues become increasingly serious, the water purification function of faucets, as the direct outlet for daily water, has received increasing attention.

[0003] Currently, most faucets do not have the function of filtering or purifying water. Usually, a filtering device is installed in a pipe connected to the faucet liquid path, or an external filtering device is installed at the water outlet of the faucet to filter domestic water. However, in addition to taking up a large space, the external filtering device also requires the filtering device to be disassembled and the filter element to be replaced, which makes it difficult to disassemble and assemble the filter element. Summary of the invention

[0004] In view of the problems that the current filter device is hung outside the faucet, which takes up a large space and the filter element is difficult to disassemble and assemble, the present invention is proposed to provide a faucet that overcomes the above problems or at least partially solves the above problems.

[0005] The present invention provides a faucet, comprising:

[0006] A housing, wherein the housing is provided with a receiving cavity;

[0007] A main body, the main body is embedded in the accommodating cavity, and a first accommodating groove and a water outlet channel connected with the first accommodating groove are provided inside the main body;

[0008] A screw, a part of which is embedded in the accommodating cavity and is threadedly connected to the outer shell, a second accommodating groove is provided on the end face of the screw close to the main body, wherein a water inlet channel connected to the liquid path of the second accommodating groove is also provided inside the screw, the first accommodating groove and the second accommodating groove cooperate to form a filter cavity, and the filter cavity is used to assemble a filter device.

[0009] An optional invention content, the faucet also includes an external pressure filter device, which is embedded in the filter cavity, wherein after the water in the water inlet channel flows into the filter cavity, it flows from the filter cavity to the interior of the external pressure filter device, and then flows to the water outlet channel through the interior of the external pressure filter device.

[0010] An optional invention content, the external pressure filtering device comprises:

[0011] First filter element;

[0012] A first upper end cover, the first upper end cover is located above the first filter element, the first upper end cover is communicated with the interior of the first filter element, and is communicated with the liquid path of the water outlet channel;

[0013] The first lower end cover is located below the first filter element and forms a seal on the bottom of the first filter element. Water in the filter cavity flows to the interior of the external pressure filter device through a gap between the first upper end cover and the first lower end cover.

[0014] An optional invention content, the external pressure filter device also includes a first sealing ring, and the first sealing ring is sleeved on the first upper end cover to form a pressure seal between the main body and the first upper end cover.

[0015] An optional invention content, the faucet also includes an internal pressure filter device, which is embedded in the filter cavity, wherein after the water in the water inlet channel flows into the interior of the internal pressure filter device, it flows into the filter cavity through the interior of the internal pressure filter device, and then flows from the filter cavity to the water outlet channel.

[0016] An optional invention content, the internal pressure filter device comprises:

[0017] Second filter element;

[0018] A second upper end cover, the second upper end cover is located above the second filter element and has a water hole;

[0019] The second lower end cover is located below the second filter element and is fixedly connected to the second upper end cover. The second lower end cover is communicated with the interior of the second filter element and is communicated with the water inlet channel fluid path, wherein the water in the water inlet channel flows into the interior of the second filter element and then flows into the filter cavity through the water hole.

[0020] An optional invention content, the internal pressure filter device also includes a second sealing ring, and the second sealing ring is sleeved on the second lower end cover to form a pressure seal between the screw and the second lower end cover.

[0021] An optional invention content, the faucet also includes:

[0022] A base, which is sleeved on the screw and located below the shell;

[0023] A nut is sleeved on the screw rod and is threadedly connected to the screw rod. The base and the nut cooperate to clamp the mounting surface so as to fix the faucet on the mounting surface.

[0024] An optional invention content, the faucet also includes a first gasket and a second gasket, the first gasket is located below the base, and the second gasket is located above the nut, when the base and the nut cooperate to clamp the mounting surface, the first gasket and the second gasket are distributed at the upper and lower ends of the mounting surface.

[0025] An optional invention content is that a flange is arranged on the end face of the base close to the shell, and the flange extends into the shell to cooperate with the flange gap through the accommodating cavity between the screw and the shell to form a limit for the base in the radial direction of the screw.

[0026] An optional invention content is that the faucet also includes a ring-shaped member, which is sleeved on the outer surface of the base and wraps the outer surface of the base.

[0027] An optional invention content, the faucet also includes:

[0028] A valve core, the valve core is installed in the water outlet channel;

[0029] A handle is fixedly connected to the valve core so as to operate the handle to control the on and off of the water path of the faucet.

[0030] An optional invention content, the faucet also includes:

[0031] An electric valve, the electric valve being installed in the water outlet channel;

[0032] An electric switch is electrically connected to the electric valve to control the on / off of the water path of the faucet through the electric switch.

[0033] An optional invention content is that a seal is provided at the connection between the main body and the screw, so as to seal the filter cavity through the seal.

[0034] An optional invention content, the faucet also includes a water outlet pipe, the water outlet pipe extends into the main body and is connected to the water outlet channel fluid path.

[0035] Compared with the prior art, the present invention includes a shell, a main body and a screw, wherein the shell is provided with a receiving cavity, the main body is embedded in the receiving cavity, and a first receiving groove and a water outlet channel connected to the first receiving groove fluid path are provided inside the main body. A portion of the screw is embedded in the receiving cavity and is threadedly connected to the shell, and a second receiving groove is provided on the end face of the screw close to the main body, wherein a water inlet channel connected to the second receiving groove fluid path is also provided inside the screw, and the first receiving groove and the second receiving groove cooperate to form a filter cavity, and the filter cavity is used to assemble a filter device. Therefore, a filter cavity for installing a filter element can be formed by the cooperation of the main body and the screw, which can greatly reduce the space occupied by the external filter device and greatly improve the convenience of replacing the filter element.

[0036] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented according to the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] By reading the detailed description of the preferred embodiment below, various other advantages and benefits will become clear to those of ordinary skill in the art. The accompanying drawings are only used for the purpose of illustrating the preferred embodiment and are not considered to be limitations of the present invention. In addition, the same reference symbols are used to represent the same components throughout the accompanying drawings.

[0038] In the attached picture:

[0039] Figure 1 is a schematic diagram of the cross-sectional structure of a faucet provided by an embodiment of the present invention;

[0040] Figure 2 It is a schematic cross-sectional structure diagram of a faucet provided by an embodiment of the present invention without an external pressure filter device installed;

[0041] Figure 3 is a partial cross-sectional structural schematic diagram of a faucet provided by an embodiment of the present invention;

[0042] Figure 4 It is a schematic cross-sectional structure diagram of an external pressure filtering device provided by an embodiment of the present invention;

[0043] Figure 5 is a schematic cross-sectional structure diagram of another faucet provided by an embodiment of the present invention;

[0044] Figure 6 It is a schematic cross-sectional structure diagram of another faucet provided by an embodiment of the present invention without an internal pressure filter device;

[0045] Figure 7 is a partial cross-sectional structural schematic diagram of another faucet provided by an embodiment of the present invention;

[0046] Figure 8 is a schematic cross-sectional structure diagram of an internal pressure filter device provided by an embodiment of the present invention;

[0047] Figure numerals: 1. outer shell; 101. accommodating cavity; 2. main body; 201. water outlet channel; 202. filter cavity; 3. screw; 301. water inlet channel; 4. external pressure filtering device; 41. first filter element; 42. first upper end cover; 43. first lower end cover; 44. first sealing ring; 5. internal pressure filtering device; 51. second filter element; 52. second upper end cover; 5201. water hole; 53. second lower end cover; 54. second sealing ring; 6. base; 7. nut; 8. first gasket; 9. second gasket; 10. flange; 11. ring; 12. valve core; 13. handle; 14. sealing member; 15. water outlet pipe; 16. water inlet pipe. DETAILED DESCRIPTION

[0048] The exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present invention and to enable the scope of the present invention to be fully communicated to those skilled in the art.

[0049] As people's living standards gradually improve and water quality issues become increasingly serious, the water purification function of faucets, as the direct outlet for daily water, has received increasing attention.

[0050] Currently, most faucets do not have the function of filtering or purifying water. Usually, a filtering device is installed in a pipe connected to the faucet liquid path, or an external filtering device is installed at the water outlet of the faucet to filter domestic water. However, in addition to taking up a large space, the external filtering device also requires the filtering device to be disassembled and the filter element to be replaced, which makes it difficult to disassemble and assemble the filter element.

[0051] Based on the above technical problems, an embodiment of the present invention is proposed. The embodiment of the present invention may include a housing 1, a main body 2 and a screw 3, wherein the housing 1 is provided with a receiving cavity 101, the main body 2 is embedded in the receiving cavity 101, and a first receiving groove and a water outlet channel 201 connected to the first receiving groove liquid path are provided inside the main body 2. A part of the screw 3 is embedded in the receiving cavity 101 and is threadedly connected to the housing 1, and a second receiving groove is provided on the end face of the screw 3 close to the main body 2, wherein a water inlet channel 301 connected to the second receiving groove liquid path is also provided inside the screw 3, and the first receiving groove and the second receiving groove cooperate to form a filter cavity 202, and the filter cavity 202 is used to assemble a filter device. Therefore, the filter cavity 202 for installing a filter element can be formed by the cooperation of the main body 2 and the screw 3, which can greatly reduce the space occupied by the external hanging of the filter device and greatly improve the convenience of replacing the filter element.

[0052] Reference Figure 1-8 The embodiment of the present invention provides a faucet, which may include a shell 1, a main body 2 and a screw 3, wherein the shell 1 is provided with a receiving cavity 101, the main body 2 is embedded in the receiving cavity 101, and a first receiving groove and a water outlet channel 201 communicating with the first receiving groove fluid path are provided inside the main body 2. A portion of the screw 3 is embedded in the receiving cavity 101 and is threadedly connected to the shell 1, and a second receiving groove is provided on the end face of the screw 3 close to the main body 2, wherein a water inlet channel 301 communicating with the second receiving groove fluid path is also provided inside the screw 3, and the first receiving groove and the second receiving groove cooperate to form a filter cavity 202, and the filter cavity 202 is used to assemble a filter device.

[0053] In an embodiment of the present invention, the faucet may at least include a shell 1, a main body 2 and a screw 3, wherein the shell 1 provides structural support for the installation of the main body 2, and a receiving cavity 101 is provided inside the shell 1, wherein the receiving cavity 101 has at least one opening facing downward, so that the main body 2 can be assembled into the receiving cavity 101 from the opening.

[0054] The main body 2 is provided with a first receiving groove and a water outlet channel 201, wherein the first receiving groove is in fluid communication with the water outlet channel 201. For example, the water outlet channel 201 is provided in a vertical direction, and the notch of the first receiving groove is arranged downward. The portion of the screw 3 close to the main body 2 is embedded in the receiving cavity 101, and the external thread of the screw 3 can cooperate with the internal thread at the opening of the receiving cavity 101 to form a threaded connection between the screw 3 and the housing 1, so that when the main body 2 is assembled into the receiving cavity 101, the main body 2 can be positioned by the threaded connection between the screw 3 and the housing 1.

[0055] The end surface of the screw rod 3 close to the main body 2 is provided with a second receiving groove, and the notch of the second receiving groove is arranged upward, so that a filter cavity 202 for accommodating the filter device can be formed by the cooperation of the first receiving groove and the second receiving groove. Therefore, when the user needs to use the filter device, he can first assemble the main body 2 into the receiving cavity 101, and then install the filter device in the first receiving groove, and limit the filter device through the first receiving groove, and then thread the screw rod 3 with the shell 1, so that the filter device is fixed through the filter cavity 202, and the main body 2 is fixed through the threaded connection between the screw rod 3 and the shell 1. Therefore, the water flowing into the water inlet channel 301 flows to the filter device, and then is filtered by the filter device, and the filtered water flows out through the water outlet channel 201.

[0056] Compared to hanging the filter device on the faucet, the embodiment of the present invention greatly reduces the space occupied by the filter device without adding additional assembly steps, and improves the convenience of disassembly and assembly of the filter device. For example, when the filter device needs to be disassembled, the screw 3 is screwed to separate the screw 3 from the housing 1, and then the filter device is removed downward. Specifically, the space occupied by the filter device is reduced mainly in: reducing the filter housing required for the external filter device, and reducing components such as the filter pipe for the water flow to pass through. The embodiment of the present invention can make the water flow path of the faucet itself partially overlap with the water flow path of the filter device, so as to further reduce the space occupied by the filter device.

[0057] When the user does not need to use the filtering device, the main body 2 can be first assembled into the accommodating cavity 101, and then the screw 3 can be threadedly connected to the outer shell 1. The main body 2 is fixed by the threaded connection between the screw 3 and the outer shell 1. As a result, the water flowing into the water inlet channel 301 flows into the filter cavity 202, and then flows to the water outlet channel 201 through the filter cavity 202. The embodiment of the present invention can increase the product applicability of the faucet. For example, when the user does not want to use the filtering device, the filtering device can be omitted in the filter cavity 202. When the user wants to use the filtering device, the filtering device can be placed in the filter cavity 202. Thereby, the functions of the faucet can be enriched, the user's choice can be convenient, and the user experience can be improved.

[0058] An optional embodiment of the invention, referring to Figure 1 and Figure 3 As shown, the faucet also includes an external pressure filter device 4, which is embedded in the filter cavity 202, wherein after the water in the water inlet channel 301 flows into the filter cavity 202, it flows from the filter cavity 202 to the inside of the external pressure filter device 4, and then flows to the water outlet channel 201 through the inside of the external pressure filter device 4.

[0059] In the embodiment of the present invention, the faucet may further include an external pressure filter device 4, wherein the external pressure filter device 4 may be understood as a filter device in which the filtering path is that the water to be filtered flows from the outside of the filter element to the inside of the filter element, and the filtered water flows out from the inside of the filter element. The external pressure filter device 4 is embedded in the filter cavity 202. For example, the external pressure filter device 4 may be fixedly connected to the external pressure filter device 4 by the bottom of the first accommodating groove of the main body 2, so as to form a vertical limit for the external pressure filter device 4. And there is a certain gap between the bottom of the external pressure filter device 4 and the screw 3, so as to ensure that the water flow can enter the filter cavity 202 from the water inlet channel 301. Then, it flows to the inside of the external pressure filter device 4 through the filter cavity 202, and then flows to the water outlet channel 201 through the inside of the external pressure filter device 4. At this time, when the faucet is turned on, the water flow flowing out of the water outlet channel 201 is the filtered water flow.

[0060] An optional embodiment of the invention, referring to Figure 3 and Figure 4As shown, the external pressure filter device 4 may include a first filter element 41, a first upper end cover 42 and a first lower end cover 43. The first upper end cover 42 is located above the first filter element 41. The first upper end cover 42 is connected to the interior of the first filter element 41 and is connected to the liquid path of the water outlet channel 201. The first lower end cover 43 is located below the first filter element 41 and forms a seal with the bottom of the first filter element 41. The water in the filter cavity 202 flows to the interior of the external pressure filter device 4 through the gap between the first upper end cover 42 and the first lower end cover 43.

[0061] In the embodiment of the present invention, the external pressure filter device 4 can be understood as a filter device in which the filtering path is that the water to be filtered flows from the outside of the filter element to the inside of the filter element, and the filtered water flows out from the inside of the filter element. The external pressure filter device 4 is embedded in the filter cavity 202. For example, the external pressure filter device 4 can be limited in the vertical direction by the bottom of the first accommodating groove of the main body 2 and the external pressure filter device 4. And there is a certain gap between the bottom of the external pressure filter device 4 and the screw 3 to ensure that the water flow can enter the filter cavity 202 from the water inlet channel 301. Then it flows to the inside of the external pressure filter device 4 through the filter cavity 202, and then flows to the water outlet channel 201 through the inside of the external pressure filter device 4. At this time, when the faucet is turned on, the water flow flowing out of the water outlet channel 201 is filtered water.

[0062] In some specific embodiments, the external pressure filter device 4 may include a first filter element 41, a first upper end cover 42 and a first lower end cover 43. For example, the first filter element 41 may be a cylindrical structure with a water passage in the middle. The first upper end cover 42 is located above the first filter element 41 and covers the upper end surface of the first filter element 41, wherein the first upper end cover 42 is provided with a water diversion channel connected to the water passage liquid path. The first lower end cover 43 is located below the first filter element 41 and covers the lower end surface of the first filter element 41 and forms a seal on the lower end surface of the first filter element 41. The first upper end cover 42 and the first lower end cover 43 cooperate to form a structural support for the first filter element 41 and define the filtering path of the first filter element 41. For example, the second filter element 51 and the second upper end cover 52 may be an interference fit, and the second filter element 51 and the second lower end cover 53 may also be an interference fit.

[0063] The water flows into the filter cavity 202 from the water inlet channel 301, passes through the area between the first upper end cover 42 and the first lower end cover 43, flows through the first filter element 41 and enters the water passage of the first filter element 41, and completes the filtration of the water. The filtered water flows through the water passage to the water diversion channel of the first upper end cover 42, and flows through the water diversion channel to the water outlet channel 201 connected to the water diversion channel fluid path.

[0064] In some embodiments, a limiting protrusion may be provided on the end surface of the first upper end cover 42 facing the first filter element 41, the water diversion channel may be opened in the limiting protrusion, the limiting protrusion may extend into the water passage of the first filter element 41, and form a clearance fit with the water passage, so that when the first upper end cover 42 and the first filter element 41 are assembled, the first filter element 41 can be assembled and positioned by the limiting protrusion.

[0065] In other embodiments, an assembly protrusion may be provided on the end surface of the first upper end cover 42 away from the first filter element 41, and the water diversion channel may be provided through the assembly protrusion. The assembly protrusion is used to match the shape of the groove wall of the first accommodating groove, so that when assembling the external pressure filter device 4, the external pressure filter device 4 can be assembled and positioned by matching the shape of the assembly protrusion with the first accommodating groove. In other words, the external pressure filter device 4 can be quickly inserted into the main body 2. The limiting protrusion, the assembly protrusion and the first upper end cover 42 can be an integrated structure.

[0066] An optional embodiment of the invention, referring to Figure 3 and Figure 4 As shown, the external pressure filter device 4 further includes a first sealing ring 44 , and the first sealing ring 44 is sleeved on the first upper end cover 42 to form a pressure seal between the main body 2 and the first upper end cover 42 .

[0067] In the embodiment of the present invention, the external pressure filter device 4 further includes a first sealing ring 44. Correspondingly, an annular first sealing groove is provided on the assembly protrusion of the first upper end cover 42. The first sealing ring 44 is sleeved on the assembly protrusion of the first upper end cover 42 and embedded in the first sealing groove. When the first upper end cover 42 is assembled to the main body 2, the first sealing ring 44 is deformed under pressure and forms pressure contact with the groove wall of the first accommodating groove. Thus, the relative position of the first upper end cover 42 and the main body 2 can be locked by the pressure contact force. In addition, the setting of the first sealing ring 44 can also prevent the water flow entering the water outlet channel 201 from flowing back to the filter cavity 202 through the gap between the first upper end cover 42 and the main body 2, thereby ensuring the waterway sealing at the connection between the first upper end cover 42 and the main body 2. In addition, the external pressure filter device 4 is fixed by the deformation force of the first sealing ring 44, which can improve the convenience of disassembly and assembly of the external pressure filter device 4. For example, when the external pressure filter device 4 needs to be disassembled, the screw 3 is pre-screwed to separate it from the main body 2, and then the external pressure filter device 4 is taken out from the first receiving groove of the main body 2. It does not require the aid of any disassembly and assembly tools, and the disassembly and assembly process is simple.

[0068] Those skilled in the art can determine the number of the first sealing rings 44 according to the actual length of the assembly protrusion. For example, the number of the first sealing rings 44 can be 1, 2 or 3, which is not limited here.

[0069] An optional embodiment of the invention, referring to Figure 6 and Figure 7 As shown, the faucet also includes an internal pressure filter device 5, which is embedded in the filter cavity 202, wherein the water in the water inlet channel 301 flows into the interior of the internal pressure filter device 5, flows through the interior of the internal pressure filter device 5 to the filter cavity 202, and then flows from the filter cavity 202 to the water outlet channel 201.

[0070] In the embodiment of the present invention, the faucet may further include an internal pressure filter device 5, which may be understood as a filter device in which the filtering path is that the water to be filtered flows from the inside of the filter element to the outside of the filter element, and the filtered water flows out from the outside of the filter element. The internal pressure filter device 5 is embedded in the filter cavity 202. For example, the internal pressure filter device 5 may be fixedly connected to the internal pressure filter device 5 by the bottom of the first accommodating groove of the screw 3, so as to form a vertical limit for the internal pressure filter device 5. And by having a certain interval between the top of the internal pressure filter device 5 and the main body 2, it is ensured that the water can flow out of the filter cavity 202 into the water outlet channel 201. Thus, the water in the water inlet channel 301 first flows to the inside of the internal pressure filter device 5 for filtration, and the filtered water flows from the inside of the internal pressure filter to the filter cavity 202, and then flows from the filter cavity 202 to the water outlet channel 201. At this time, when the faucet is turned on, the water flowing out of the water outlet channel 201 is filtered water.

[0071] An optional embodiment of the invention, referring to Figure 7 and Figure 8 As shown, the internal pressure filter device 5 may include a second filter element 51, a second upper end cover 52 and a second lower end cover 53, wherein the second upper end cover 52 is located above the second filter element 51 and has a water hole 5201. The second lower end cover 53 is located below the second filter element 51 and is fixedly connected to the second upper end cover 52, and the second lower end cover 53 is in communication with the interior of the second filter element 51 and is in communication with the water inlet channel 301, wherein the water in the water inlet channel 301 flows into the interior of the second filter element 51 and then flows into the filter cavity 202 through the water hole 5201.

[0072] In the embodiment of the present invention, the internal pressure filter device 5 can be understood as a filter device in which the filtering path is that the water to be filtered flows from the inside of the filter element to the outside of the filter element, and the filtered water flows out from the outside of the filter element. The internal pressure filter device 5 is embedded in the filter cavity 202. For example, the internal pressure filter device 5 can be fixedly connected to the internal pressure filter device 5 by the bottom of the first accommodating groove of the screw 3, so as to form a limit in the vertical direction of the internal pressure filter device 5. And there is a certain gap between the top of the internal pressure filter device 5 and the main body 2, so as to ensure that the water can flow out of the filter cavity 202 into the water outlet channel 201. As a result, the water in the water inlet channel 301 first flows to the inside of the internal pressure filter device 5 for filtration, and the filtered water flows from the inside of the internal pressure filter to the filter cavity 202, and then flows from the filter cavity 202 to the water outlet channel 201. At this time, when the faucet is turned on, the water flowing out of the water outlet channel 201 is the filtered water.

[0073] In some optional embodiments of the invention, the internal pressure filter device 5 may further include a second filter element 51, a second upper end cover 52 and a second lower end cover 53. For example, at least one water passage may be provided on the second filter element 51. The second upper end cover 52 is located above the second filter element 51 and covers the upper end surface of the second filter element 51, wherein a water passage hole 5201 is provided on the second upper end cover 52, wherein the water passage hole 5201 is in fluid communication with the filter cavity 202, so that water in the water passage of the second filter element 51 can enter the filter cavity 202 through the water passage hole 5201.

[0074] The second lower end cover 53 is located below the second filter element 51 and covers the lower end surface of the second filter element 51, wherein the second upper end cover 52 and the second lower end cover 53 can form a surface contact, thereby ensuring that the water in the second filter element 51 can only flow from the water hole 5201 to the filter cavity 202. The second filter element 51 and the second upper end cover 52 can be an interference fit, and the second filter element 51 and the second lower end cover 53 can also be an interference fit. The second lower end cover 53 is provided with a water inlet protrusion, and the water inlet protrusion extends downward along the end surface of the second lower end cover 53 away from the second filter element 51. The internal pressure filter device 5 is assembled and positioned by the shape matching of the water inlet protrusion and the second receiving groove of the screw 3. In other words, the internal pressure filter device 5 can be quickly inserted into the main body 2. The water inlet protrusion is provided with a channel connecting the water passage and the water inlet channel 301. Water flows from the water inlet channel 301 into the water passage of the second filter element 51, and then flows through the water holes 5201 of the second upper end cover 52, flows through the second filter element 51 and enters the filter cavity 202. The water flowing into the filter cavity 202 is filtered water, and the filtered water flows into the water outlet channel 201. The water inlet protrusion and the second lower end cover 53 may be an integrated structure.

[0075] In the embodiment of the present invention, the first filter element 41 and the second filter element 51 may respectively include at least one of the following types: artificial chemical fiber (Polypropylene Cotton, PP) filter element, polyamide composite activated carbon (Polyamide Composite Activated Carbon filter, PAC) filter element, carbon rod filter element, carbon fiber filter element, ultrafiltration membrane filter element, resin filter element, and filter material filter element. For example, in the case where the first filter element 41 includes two types, the first filter element 41 can be obtained by stacking the two types of filter elements, so that the water flow to be filtered passes through the first filter element 41 in sequence.

[0076] An optional embodiment of the invention, referring to Figure 7 and Figure 8 As shown, the internal pressure filter device 5 further includes a second sealing ring 54 , and the second sealing ring 54 is sleeved on the second lower end cover 53 to form a pressure seal between the screw 3 and the second lower end cover 53 .

[0077] In the embodiment of the present invention, the internal pressure filter device 5 further includes a second sealing ring 54. Correspondingly, an annular second sealing groove is provided on the water inlet protrusion of the second lower end cover 53. The second sealing ring 54 is sleeved on the water inlet protrusion of the second lower end cover 53 and embedded in the second sealing groove. When the second lower end cover 53 is assembled on the screw rod 3, the second sealing ring 54 is deformed under pressure and forms pressure contact with the groove wall of the second accommodating groove. Thus, the relative position of the second lower end cover 53 and the screw rod 3 can be locked by the pressure contact force. In addition, the provision of the second sealing ring 54 can also prevent the water flow entering the water inlet channel 301 from directly flowing into the filter cavity 202 through the gap between the second lower end cover 53 and the screw rod 3, thereby ensuring the waterway sealing at the connection between the second lower end cover 53 and the screw rod 3. In addition, the internal pressure filter device 5 is fixed by the deformation force of the second sealing ring 54, which can improve the convenience of disassembly and assembly of the internal pressure filter device 5. For example, when the internal pressure filter device 5 needs to be disassembled, the screw 3 is pre-tightened to separate it from the main body 2, and then the internal pressure filter device 5 is taken out from the second receiving groove of the screw 3. It does not require the aid of any disassembly and assembly tools, and the disassembly and assembly process is simple.

[0078] Those skilled in the art can determine the number of the second sealing rings 54 according to the actual length of the water inlet protrusion. For example, the number of the second sealing rings 54 can be 1, 2 or 3, which is not limited here.

[0079] Compared to hanging the filter device on the faucet, the embodiment of the present invention greatly reduces the space occupied by the filter device without adding additional assembly steps, and improves the convenience of disassembly and assembly of the filter device. For example, when the filter device needs to be disassembled, the screw 3 is screwed to separate the screw 3 from the housing 1, and then the filter device is removed downward. Specifically, the space occupied by the filter device is reduced mainly in: reducing the filter housing required for the external filter device, and reducing components such as the filter pipe for the water flow to pass through. The embodiment of the present invention can make the water flow path of the faucet itself partially overlap with the water flow path of the filter device, so as to further reduce the space occupied by the filter device.

[0080] When the user does not need to use the filtering device, the main body 2 can be first assembled into the accommodating cavity 101, and then the screw 3 can be threadedly connected to the outer shell 1. The main body 2 is fixed by the threaded connection between the screw 3 and the outer shell 1. As a result, the water flowing into the water inlet channel 301 flows into the filter cavity 202, and then flows to the water outlet channel 201 through the filter cavity 202. The embodiment of the present invention can increase the product applicability of the faucet. For example, when the user does not want to use the filtering device, the filtering device can be omitted in the filter cavity 202. When the user wants to use the filtering device, the filtering device can be placed in the filter cavity 202. Thereby, the functions of the faucet can be enriched, the user's choice can be convenient, and the user experience can be improved.

[0081] An optional embodiment of the invention, referring to Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 as well as Figure 7 As shown, the faucet may further include a base 6 and a nut 7. The base 6 is sleeved on the screw rod 3 and is located below the housing 1. The nut 7 is sleeved on the screw rod 3 and is threadedly connected to the screw rod 3. The base 6 and the nut 7 cooperate to clamp the mounting surface, so that the faucet is fixed on the mounting surface.

[0082] In the embodiment of the present invention, the faucet may further include a base 6 and a nut 7, wherein the base 6 and the nut 7 are respectively sleeved on the screw rod 3, wherein the top of the base 6 contacts the bottom of the housing 1, and the bottom of the base 6 is used to contact the mounting surface, for example, the mounting surface may include but is not limited to the countertop of a sink, etc. Thus, the contact area between the faucet and the mounting surface can be increased by the base 6, thereby improving the installation stability of the faucet. The nut 7 and the base 6 are spaced apart along the axial direction of the screw rod 3, and the internal thread of the nut 7 matches the external thread of the screw rod 3. When assembling the faucet, the base 6 can be made to form a surface contact with the upper end surface of the mounting surface, and then the nut 7 is screwed from the lower end surface of the mounting surface so that the nut 7 moves close to the base 6. Finally, the mounting surface is clamped by the nut 7 and the base 6, and the position of the nut 7 is locked by the threaded connection between the nut 7 and the screw rod 3, thereby completing the fixing of the faucet on the mounting surface.

[0083] An optional embodiment of the invention, referring to Figure 3 and Figure 7 As shown, the faucet also includes a first gasket 8 and a second gasket 9, the first gasket 8 is located below the base 6, and the second gasket 9 is located above the nut 7. When the base 6 and the nut 7 cooperate to clamp the mounting surface, the first gasket 8 and the second gasket 9 are distributed at the upper and lower ends of the mounting surface.

[0084] In the embodiment of the present invention, the faucet may further include a first gasket 8 and a second gasket 9, wherein the first gasket 8 and the second gasket 9 are disposed between the base 6 and the nut 7, and the first gasket 8 and the second gasket 9 are respectively sleeved on the screw rod 3. When the faucet is fixed to the mounting surface, the first gasket 8 is located on the upper end surface of the mounting surface, and forms pressure contact with the mounting surface and the base 6, respectively. The second gasket 9 is located on the lower end surface of the mounting surface, and forms pressure contact with the mounting surface and the nut 7, respectively. The provision of the first gasket 8 and the second gasket 9 can increase the friction between the base 6 and the mounting surface, and increase the friction between the nut 7 and the mounting surface, which can prevent the faucet from loosening during use and improve the connection stability of the faucet.

[0085] An optional embodiment of the invention, referring to Figure 2 , Figure 3 , Figure 6 as well as Figure 7As shown, a flange 10 is provided on the end face of the base 6 close to the shell 1, and the flange 10 extends into the shell 1, so as to form a limit for the base 6 in the radial direction of the screw 3 through the clearance fit between the accommodating cavity 101 between the screw 3 and the shell 1 and the flange 10.

[0086] In an embodiment of the present invention, a flange 10 is provided on the end surface of the base 6 close to the shell 1, and the flange 10 and the base 6 can be an integral structure. The flange 10 extends into the accommodating cavity 101 of the shell 1, thereby, the base 6 can be sleeved on the screw 3 so that the flange 10 is embedded in the dissolution cavity, so that the screw 3 and the shell 1 can be combined to form a limit on the base 6 in the radial direction of the screw 3, so as to prevent the base 6 from moving in the radial direction of the screw 3, and the flange 10 is used for assembly positioning of the base 6.

[0087] An optional embodiment of the invention, referring to Figure 3 and Figure 7 As shown, the faucet further includes a ring-shaped member 11 , which is sleeved on the outer surface of the base 6 and wraps the outer surface of the base 6 .

[0088] In an embodiment of the present invention, the faucet may further include an annular member 11, which is sleeved on the outer surface of the base 6 and wraps the outer surface of the base 6, wherein the annular member 11 can be fixed with the base 6 by interference fit, and the annular member 11 wraps the outer surface of the base 6, thereby covering the appearance of the base 6 in appearance. For example, the annular member 11 can improve the aesthetics of the faucet by setting different colors or different patterns, textures, etc., which is conducive to improving the user experience of the faucet.

[0089] An optional embodiment of the invention, referring to Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 as well as Figure 7 As shown, the faucet may further include a valve core 12 and a handle 13, wherein the valve core 12 is installed in the water outlet channel 201. The handle 13 is fixedly connected to the valve core 12, so that the handle 13 is operated to control the on and off of the water channel of the faucet.

[0090] In an embodiment of the present invention, the faucet may further include a valve core 12 and a handle 13, wherein the valve core 12 is installed in the water outlet channel 201, and the handle 13 is fixedly connected to the valve core 12, thereby controlling the on-off of the water path in the water outlet channel 201, i.e., controlling the on-off of the water path of the faucet, by screwing the handle 13 or pressing the handle 13.

[0091] In an optional embodiment of the invention, the faucet may further include an electric valve and an electric switch. The electric valve is installed in the water outlet channel 201, and the electric switch is electrically connected to the electric valve to control the on-off of the water channel of the faucet through the electric switch.

[0092] In the embodiment of the present invention, the faucet may further include an electric valve and an electric switch, wherein the electric valve is installed in the water outlet channel 201, wherein the electric valve may be an electric valve, a solenoid valve, etc. The electric switch may be integrated on a circuit board, and the electric switch is electrically connected to the electric valve, and the water passage in the water outlet channel 201 is controlled to be on and off by pressing the electric switch, that is, the water passage of the faucet is controlled to be on and off.

[0093] An optional embodiment of the invention, referring to Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 as well as Figure 7 As shown, a seal 14 is provided at the connection between the main body 2 and the screw 3 so as to seal the filter cavity 202 through the seal 14 .

[0094] In the embodiment of the present invention, the sealing member 14 may include but is not limited to a sealing ring, etc., a portion of the screw rod 3 may extend into the first receiving groove of the main body 2, and a pressure seal is formed at the connection between the screw rod 3 and the main body 2 through the sealing member 14. Thus, it is possible to prevent the water in the filter cavity 202 from flowing out through the connection between the main body 2 and the screw rod 3, thereby improving the water channel sealing of the faucet.

[0095] An optional embodiment of the invention, referring to Figure 1 , Figure 2 , Figure 5 as well as Figure 6 As shown, the faucet further includes a water outlet pipe 15 , which extends into the main body 2 , in which a water outlet connection portion is provided, and the water outlet pipe 15 is connected to the water outlet connection portion and is in fluid communication with the water outlet channel 201 .

[0096] In some embodiments, the faucet may further include a water inlet pipe 16, which extends into the screw rod 3, in which a water inlet connection portion is provided, and the water inlet pipe 16 is connected to the water inlet connection portion and forms a liquid path connection with the water inlet channel 301 in the screw rod 3.

[0097] In summary, the embodiment of the present invention discloses a faucet, which may include a housing 1, a main body 2 and a screw 3, wherein the housing 1 is provided with a receiving cavity 101, the main body 2 is embedded in the receiving cavity 101, and a first receiving groove and a water outlet channel 201 connected to the first receiving groove fluid path are provided inside the main body 2. A portion of the screw 3 is embedded in the receiving cavity 101 and is threadedly connected to the housing 1, and a second receiving groove is provided on the end surface of the screw 3 close to the main body 2, wherein a water inlet channel 301 connected to the second receiving groove fluid path is also provided inside the screw 3, and the first receiving groove and the second receiving groove cooperate to form a filter cavity 202, and the filter cavity 202 is used to assemble a filter device. Therefore, the filter cavity 202 for installing a filter element can be formed by the cooperation of the main body 2 and the screw 3, which can greatly reduce the space occupied by the external hanging of the filter device and greatly improve the convenience of replacing the filter element.

[0098] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0099] It is easy for a person skilled in the art to think that any combination of the above embodiments is feasible, so any combination of the above embodiments is an implementation scheme of the present invention. However, due to space limitations, this specification will not describe them in detail here.

[0100] In the description provided herein, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

[0101] Similarly, it should be understood that in order to streamline the present invention and aid in understanding one or more of the various inventive aspects, in the above description of exemplary embodiments of the present invention, various features of the present invention are sometimes grouped together into a single embodiment, figure, or description thereof.

[0102] In addition, those skilled in the art will appreciate that, although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present invention and form different embodiments. For example, in the claims, any one of the claimed embodiments can be used in any combination.

Claims

1. A faucet, characterized in that: The faucet comprises: A housing (1), wherein the housing (1) is provided with a receiving cavity (101); A main body (2), the main body (2) being embedded in the accommodating cavity (101), and the main body (2) being provided with a first accommodating groove and a water outlet channel (201) in fluid communication with the first accommodating groove; A screw (3), a portion of which is embedded in the accommodating cavity (101) and is threadedly connected to the housing (1); a second accommodating groove is provided on the end face of the screw (3) close to the main body (2); a water inlet channel (301) is also provided inside the screw (3) and is connected to the liquid path of the second accommodating groove; the first accommodating groove and the second accommodating groove cooperate to form a filter cavity (202); and the filter cavity (202) is used to assemble a filter device.

2. The faucet according to claim 1, characterized in that: The faucet further comprises an external pressure filter device (4), wherein the external pressure filter device (4) is embedded in the filter cavity (202), wherein after the water in the water inlet channel (301) flows into the filter cavity (202), it flows from the filter cavity (202) to the interior of the external pressure filter device (4), and then flows through the interior of the external pressure filter device (4) to the water outlet channel (201).

3. The faucet according to claim 2, characterized in that: The external pressure filtering device (4) comprises: A first filter element (41); A first upper end cover (42), the first upper end cover (42) being located above the first filter element (41), the first upper end cover (42) being in communication with the interior of the first filter element (41), and being in communication with a liquid path of the water outlet channel (201); A first lower end cover (43), wherein the first lower end cover (43) is located below the first filter element (41) and forms a seal with the bottom of the first filter element (41), and water in the filter cavity (202) flows into the interior of the external pressure filter device (4) through a gap between the first upper end cover (42) and the first lower end cover (43).

4. The faucet according to claim 3, characterized in that: The external pressure filtering device (4) further comprises a first sealing ring (44), wherein the first sealing ring (44) is sleeved on the first upper end cover (42) so as to form a pressure seal between the main body (2) and the first upper end cover (42).

5. The faucet according to claim 1, characterized in that: The faucet further comprises an internal pressure filter device (5), wherein the internal pressure filter device (5) is embedded in the filter cavity (202), wherein after the water in the water inlet channel (301) flows into the interior of the internal pressure filter device (5), it flows into the filter cavity (202) through the interior of the internal pressure filter device (5), and then flows from the filter cavity (202) into the water outlet channel (201).

6. The faucet according to claim 5, characterized in that: The internal pressure filtering device (5) comprises: A second filter element (51); A second upper end cover (52), the second upper end cover (52) is located above the second filter element (51) and is provided with a water hole (5201); A second lower end cover (53), the second lower end cover (53) is located below the second filter element (51) and is fixedly connected to the second upper end cover (52), the second lower end cover (53) is communicated with the interior of the second filter element (51), and is communicated with the liquid path of the water inlet channel (301), wherein water in the water inlet channel (301) flows into the interior of the second filter element (51) and then flows into the filter cavity (202) through the water through hole (5201).

7. The faucet according to claim 6, characterized in that: The internal pressure filtering device (5) further comprises a second sealing ring (54), wherein the second sealing ring (54) is sleeved on the second lower end cover (53) so as to form a pressure seal between the screw (3) and the second lower end cover (53).

8. The faucet according to claim 1, characterized in that: The faucet also includes: A base (6), the base (6) being sleeved on the screw rod (3) and located below the housing (1); A nut (7), wherein the nut (7) is sleeved on the screw rod (3) and is threadedly connected to the screw rod (3), and the base (6) and the nut (7) cooperate to clamp the mounting surface, so as to fix the faucet on the mounting surface.

9. The faucet according to claim 8, characterized in that: The faucet further comprises a first gasket (8) and a second gasket (9), wherein the first gasket (8) is located below the base (6), and the second gasket (9) is located above the nut (7), and when the base (6) and the nut (7) cooperate to clamp the mounting surface, the first gasket (8) and the second gasket (9) are distributed at the upper and lower ends of the mounting surface.

10. The faucet according to claim 8, characterized in that: A flange (10) is provided on the end surface of the base (6) close to the outer shell (1), and the flange (10) extends into the outer shell (1) so as to form a limit for the base (6) in the radial direction of the screw rod (3) through the clearance fit between the accommodating cavity (101) between the screw rod (3) and the outer shell (1) and the flange (10).

11. The faucet according to claim 8, characterized in that: The faucet further comprises an annular member (11), wherein the annular member (11) is sleeved on the outer surface of the base (6) and wraps the outer surface of the base (6).

12. The faucet according to claim 2 or 5, characterized in that: The faucet also includes: A valve core (12), the valve core (12) being installed in the water outlet channel (201); A handle (13) is fixedly connected to the valve core (12) so as to operate the handle (13) to control the on and off of the water path of the faucet.

13. The faucet according to claim 2 or 5, characterized in that: The faucet also includes: An electric valve, the electric valve being installed in the water outlet channel (201); An electric switch is electrically connected to the electric valve to control the on / off of the water path of the faucet through the electric switch.

14. The faucet according to claim 1, characterized in that: A sealing member (14) is provided at the connection between the main body (2) and the screw rod (3), so as to seal the filter cavity (202) through the sealing member (14).

15. The faucet according to claim 1, characterized in that: The faucet further comprises a water outlet pipe (15), wherein the water outlet pipe (15) extends into the main body (2) and is fluidly connected to the water outlet channel (201).

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