Water inlet connector easy to clean and faucet

Abstract

The water inlet connector easy to clean comprises a connector body, a water stop plug, a first elastic reset piece and a water filtering switching assembly, and a water inlet cavity, a water outlet cavity and a partition plate with a water guide hole are arranged in the connector body; a first elastic reset piece in the water inlet cavity abuts against the water stop plug so that the water guide hole can be blocked by the water stop plug. The water filtering switching assembly comprises a filter cartridge, a button, a ball and a second elastic reset piece; the filter cartridge penetrates through the first mounting port and extends into the water outlet cavity, an ejector rod is arranged at one end, close to the partition plate, in the filter cartridge, and a button is arranged at the other end; the second elastic reset piece is arranged in the filter cartridge, and two ends of the second elastic reset piece abut against the button and the filter cartridge respectively; a ball penetrates through the side wall of the filter cartridge, a transition face used for abutting against the ball is arranged on the side wall of the button, a positioning groove is formed in the first installation opening, and when the button axially moves, the ball can be disengaged from or clamped into the positioning groove. The invention further discloses a faucet. The water filtering switching assembly is convenient to disassemble, assemble and clean, and water inflow can be automatically stopped when the water filtering switching assembly is disassembled.

Description

[0001] This application is a divisional application with an application date of April 21, 2022, application number 202210421878.7 and invention name “An easy-to-clean water inlet joint and faucet”. Technical Field

[0002] The invention relates to the field of bathroom faucets, and in particular to an easy-to-clean water inlet joint and a faucet. Background Art

[0003] Common shower water inlet curved feet include curved feet without filtering function and curved feet with pre-filtering function.

[0004] Among them, the curved foot without filtering function is the most common water inlet joint curved foot on the market. It does not contain pre-filtering function and cannot filter water to protect water-using equipment. When matching with shower faucets, a filter needs to be installed on the shower faucet fixing nut or control valve core. However, it is easy to get blocked when used in places with poor water quality. After blocking, you can only turn off the main valve and remove the faucet, which is not easy to disassemble and clean.

[0005] For the curved feet with pre-filtering function, some are exposed outside the curved foot decorative cup, with a large size, affecting the overall shape of the product; others use a flat pad filter installed in a nut inside the curved foot decorative cup to filter impurities in the water to protect the shower faucet, but the flat pad filter has a small water flow area and is easy to clog, and when it is disassembled for cleaning, the main valve must be closed first, and then the faucet must be removed to take out the flat pad filter for cleaning. The disassembly and cleaning of this filtering structure are very troublesome. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide an easy-to-clean water inlet joint, which is easy to disassemble and assemble, convenient to clean, and can automatically close the water channel when the water filter switching component is detached.

[0007] The technical problem to be solved by the present invention is also to provide a faucet, which can directly shut off the water inlet through the water filter switching component without closing the main valve when the faucet is leaking or needs maintenance.

[0008] In order to solve the above technical problems, the present invention provides an easy-to-clean water inlet joint, including a joint body, a water stopper, a first elastic reset member and a water filter switching assembly.

[0009] A water inlet cavity and a water outlet cavity are provided in the joint body, and a partition with a water guide hole is provided between the water outlet cavity and the water inlet cavity;

[0010] The water stopper and the first elastic reset member are arranged in the water inlet cavity, and the first elastic reset member abuts against the water stopper so that the water stopper blocks the water guide hole;

[0011] The water filter switching assembly includes a filter cartridge, a button, a ball and a second elastic reset member;

[0012] The water outlet cavity is provided with a first mounting opening, the filter cartridge passes through the first mounting opening and extends into the water outlet cavity, a push rod is provided at one end of the filter cartridge close to the partition, and the button is provided at the other end of the filter cartridge;

[0013] The second elastic reset member is disposed in the filter cartridge and has two ends that abut against the button and the filter cartridge respectively;

[0014] The ball is penetrated through the side wall of the filter cartridge, the side wall of the button is provided with a transition surface for abutting against the ball, the inner wall of the first mounting port is provided with a positioning groove matched with the ball, when the button moves axially in the filter cartridge, the ball can be disengaged from or stuck in the positioning groove, and when the ball is stuck in the positioning groove, the filter cartridge abuts against the partition, and the push rod pushes the water stop plug away from the water guide hole; when the ball is disengaged from the positioning groove, the water filter switching assembly as a whole can be pulled out from the first mounting port.

[0015] As an improvement of the above solution, the filter cartridge includes a filter frame, and a filter screen, a first water sealing ring and a fixing sleeve sequentially arranged along the axial direction of the filter frame;

[0016] The filter screen is arranged around the circumference of the filter frame, the first water sealing ring is in contact with the inner wall of the circumference of the first installation opening, the fixing sleeve is arranged outside the button, one end of the fixing sleeve is connected to the filter frame, and the other end is provided with a first limiting boss, and the button can move between the first limiting boss and the filter frame;

[0017] The side wall of the fixing sleeve is provided with a ball mounting hole, and the ball is movably arranged in the ball mounting hole.

[0018] As an improvement of the above solution, a connecting column is provided in the filter frame, the push rod is inserted into the connecting column and is threadedly connected to the connecting column, and a second water sealing ring is sleeved on the push rod and abuts against the inner wall of the connecting column in the circumferential direction;

[0019] A driving groove is provided on an end surface of the push rod close to the button, and the button is provided with a driving rod extending into the driving groove. Driving the button to rotate can drive the push rod to rotate relative to the connecting column and generate axial displacement.

[0020] As an improvement of the above solution, a connecting column is provided in the filter frame, the push rod is inserted into the connecting column and is threadedly connected to the connecting column, and a second water sealing ring is sleeved on the push rod and abuts against the inner wall of the connecting column in the circumferential direction;

[0021] The button includes a body and a button cap, the transition surface is arranged on the body, an operation channel is arranged in the body, the button cap covers the operation channel and is detachably connected to the body, and a driving groove is arranged on an end face of the push rod close to the button cap.

[0022] As an improvement of the above solution, the transition surface includes a first frustum surface and a cylindrical surface, and the large diameter end of the first frustum surface is connected to an end of the cylindrical surface away from the second elastic return member; or

[0023] The angle between the transition surface and the axial direction of the button gradually increases in a direction away from the second elastic return member.

[0024] As an improvement of the above solution, the filter frame is provided with a rib plate connected to the connecting column, and the second elastic reset member is sleeved outside the connecting column and abuts against the rib plate.

[0025] As an improvement of the above solution, the surface of the water stopper opposite to the water guide hole is a spherical surface, a conical surface or a second frustum surface, and the end of the water guide hole close to the water inlet cavity is provided with a curved surface adapted to the water stopper;

[0026] A water storage groove is provided on one side of the water stopper away from the water guide hole, and the first elastic reset member extends into the water storage groove and abuts against the water stopper.

[0027] As an improvement of the above solution, the water inlet cavity is provided with a second installation port, the second installation port is provided with a water sealing plug, and the two ends of the first elastic reset member are respectively abutted against the water stop plug and the water sealing plug.

[0028] As an improvement of the above scheme, a decorative cup is also included, the joint body includes a water inlet pipe connected to the water inlet cavity, and a water outlet pipe connected to the water outlet cavity, the decorative cup is sleeved on the water outlet pipe and covers the first mounting port and the second mounting port, and the decorative cup is provided with a button operation hole corresponding to the button.

[0029] In addition, the present invention also provides a faucet, which includes a faucet body and the above-mentioned easy-to-clean water inlet joint, and the water outlet cavity of the joint body is connected to the water inlet end of the faucet body.

[0030] The implementation of the present invention has the following beneficial effects:

[0031] The present invention provides a water stopper and a first elastic reset member for blocking the water guide hole in the water inlet cavity, a first installation port in the water outlet cavity, a positioning groove in the first installation port, a push rod, a second elastic reset member and a button in the filter cartridge, a ball is passed through the side wall thereof, the filter cartridge is passed through the first installation port and extended into the water outlet cavity, the button in the filter cartridge is pressed to move axially in the filter cartridge, the transition surface of the button abuts against the ball, and the ball is separated from or stuck in the positioning groove;

[0032] The water filter switching assembly is inserted into the first installation port as a whole, and when the ball is inserted into the positioning groove, the water filter switching assembly is assembled with the joint body, and the installation is convenient;

[0033] The installed water filter switching assembly has its filter cartridge abutting against the partition, and the push rod pushes the water stopper away from the water guide hole to achieve water inlet. The filter screen of the filter cartridge achieves the water filtering function and is not easy to be blocked.

[0034] When the ball is separated from the positioning groove, the water filter switching assembly rebounds outward as a whole under the action of the first elastic reset member, so that the water filter switching assembly can be pulled out of the first installation opening, thereby realizing convenient disassembly of the water filter switching assembly;

[0035] When the ball is out of the positioning groove, the action between the push rod and the water stopper is eliminated, and the water stopper blocks the water guide hole under the action of the first elastic reset member, realizing the automatic water inlet stop function. The disassembly of the water filter switching assembly does not require the closing of the water channel main valve, which facilitates the disassembly and cleaning of the filter cartridge;

[0036] When the faucet leaks or needs maintenance, there is no need to close the main valve. The water inlet can be directly closed through the water filter switching component, which is convenient for use and maintenance;

[0037] The axial movement of the button in the filter cartridge and the rolling of the ball under the contact of the transition surface are not affected by water pressure. The water filter switching assembly can be ejected as a whole by simply pressing the button.

[0038] The opening and closing degree of the spherical water stopper can be controlled by adjusting the length of the ejector rod extending out of the filter cartridge, so as to adjust the flow rate conveniently.

[0039] The water stopper has a large water flow area and small flow loss;

[0040] The water stopper can automatically guide to the center and seal water, and can seal water even if it is offset, with high reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a schematic diagram of the assembly structure of an embodiment of an easy-to-clean water inlet joint of the present invention;

[0042] Figure 2 yes Figure 1 A schematic structural diagram of a joint body, a water stopper and a first elastic reset member;

[0043] Figure 3 It is a schematic structural diagram of an embodiment of a water filter switching component;

[0044] Figure 4 is a schematic structural diagram of another embodiment of a water filter switching assembly;

[0045] Figure 5 yes Figure 1 A schematic diagram of the structure after the button is pressed;

[0046] Figure 6 yes Figure 5 Schematic diagram of the structure after the button is released. DETAILED DESCRIPTION

[0047] In order to make the objectives, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings.

[0048] like Figure 1 As shown, the present invention discloses an embodiment of an easy-to-clean water inlet joint, comprising a joint body 1, a water stopper 2, a first elastic reset member 3 and a water filter switching assembly. Figure 2 The joint body 1 is provided with a water inlet chamber 11 and a water outlet chamber 12, and a partition 13 with a water guide hole 131 is provided between the water outlet chamber 12 and the water inlet chamber 11, and the water outlet chamber 12 and the water inlet chamber 11 are connected through the water guide hole 131. The water stop plug 2 and the first elastic reset member 3 are provided in the water inlet chamber 11, and the first elastic reset member 3 abuts against the water stop plug 2, so that the water stop plug 2 blocks the water guide hole 131, thereby blocking the water flow from the water inlet chamber 11 into the water outlet chamber 12. Figure 3 and Figure 4 The water filter switching assembly includes a filter cartridge 4, a button 5, a ball 6, and a second elastic reset member 7. The water outlet chamber 12 is provided with a first mounting port 14, the filter cartridge 4 passes through the first mounting port 14 and extends into the water outlet chamber 12, a push rod 8 is provided at one end of the filter cartridge 4 close to the partition 13, and the button 5 is provided at the other end of the filter cartridge 4; the second elastic reset member 7 is provided in the filter cartridge 4, and the two ends thereof are respectively in contact with the button 5 and the filter cartridge 4; the ball 6 is passed through the side wall of the filter cartridge 4, and the side wall of the button 5 is provided with a transition surface 511 for contacting with the ball 6 The inner wall of the first mounting port 14 is provided with a positioning groove 141 adapted to the ball 6. When the button 5 moves axially in the filter cartridge 4, the ball 6 can be disengaged from or stuck in the positioning groove 141. When the ball 6 is stuck in the positioning groove 141, the filter cartridge 4 abuts against the partition 13, and the push rod 8 pushes the water stop plug 2 away from the water guide hole 131. When the ball 6 is disengaged from the positioning groove 141, the water filter switching assembly as a whole can be pulled out from the first mounting port 14.

[0049] In this embodiment, a water stopper 2 and a first elastic reset member 3 for blocking the water guide hole 131 are arranged in the water inlet chamber 11, a first installation port 14 is arranged in the water outlet chamber 12, a positioning groove 141 is arranged in the first installation port 14, a push rod 8, a second elastic reset member 7 and a button 5 are arranged in the filter cartridge 4, a ball 6 is penetrated in the side wall thereof, the filter cartridge 4 is passed through the first installation port 14 and extended into the water outlet chamber 12, and the button 5 in the filter cartridge 4 is pressed to make the button 5 move axially in the filter cartridge 4, and the transition surface 511 of the button 5 abuts against the ball 6, so that the ball 6 is separated from or stuck in the positioning groove 141; when the water filter switching assembly is inserted into the first installation port 14 as a whole and the ball 6 is stuck in the positioning groove 141, the water filter switching assembly is assembled with the joint body 1, the filter cartridge 4 abuts against the partition plate 13, and the push rod 8 pushes the water stopper 2 away from the water guide hole 131, so that the water inlet and water filtering functions are realized, and the installation is convenient; combined with Figure 5 and Figure 6 When the ball 6 is separated from the positioning groove 141, under the action of the first elastic reset member 3, the water filter switching assembly rebounds outward as a whole, so that the water filter switching assembly can be withdrawn from the first mounting port 14, and at the same time, the action between the top rod 8 and the water stop plug 2 is eliminated. The water stop plug 2 blocks the water guide hole 131 under the action of the first elastic reset member 3, thereby realizing the convenient disassembly of the water filter switching assembly and the automatic water inlet stop function. The disassembly of the water filter switching assembly does not require the additional closure of the water channel main valve, which is convenient for cleaning the filter cartridge 4.

[0050] The joint body 1 of this embodiment is provided with a water inlet pipe 15 and a water outlet pipe 16 , wherein the water inlet cavity 11 is communicated with the water inlet pipe 15 , and the water outlet cavity 12 is communicated with the water outlet interface pipe.

[0051] When the easy-to-clean water inlet joint of this embodiment is used for the installation of shower water inlet, the water inlet pipe 15 is used to connect with the hot and cold pipes, and the water outlet pipe 16 is used to connect with the shower faucet. The horizontal axis drop between the water inlet pipe 15 and the water outlet pipe 16 is designed as a universal standard, so that the shower faucet can still be installed normally even if there is a certain range of deviation in the distance between the pre-buried hot and cold pipes.

[0052] To facilitate the assembly of the first elastic reset member 3 and the water stop plug 2 in the water inlet chamber 11, the water inlet chamber 11 of this embodiment is provided with a second installation port 17, and the second installation port 17 is provided with a water sealing plug 9, and the two ends of the first elastic reset member 3 are respectively abutted against the water stop plug 2 and the water sealing plug 9.

[0053] In addition, the easy-to-clean water inlet connector of the present embodiment further includes a decorative cup 10, the connector body 1 includes a water inlet pipe 15 connected to the water inlet chamber 11, and a water outlet pipe 16 connected to the water outlet chamber 12, the decorative cup 10 is sleeved on the water outlet pipe 16, and covers the first mounting port 14 and the second mounting port 17, and a button operation hole 101 corresponding to the button 5 is provided on the decorative cup 10 to facilitate the installation of the water filter switching assembly.

[0054] The easy-to-clean water inlet joint of this embodiment does not change the current standard installation and connection method of the pipe and shower faucet, and the water filter switching assembly is arranged in the decorative cup 10, which has a compact structure and does not affect the overall shape of the product.

[0055] The first installation opening 14 of this embodiment is arranged opposite to the water guide hole 131. The filter cartridge 4 specifically comprises a filter frame 41, and a filter screen 42, a first water sealing ring 43 and a fixing sleeve 44 arranged in sequence along the axial direction of the filter frame 41.

[0056] The filter screen 42 is arranged around the circumference of the filter frame 41. When the filter cylinder 4 abuts against the partition 13 and the push rod 8 pushes the water stop plug 2 away from the water guide hole 131, the filter frame 41 with the filter screen 42 is covered around the water guide hole 131. The filter screen 42 spans the entire water outlet cavity 12. The water flowing out through the water guide hole 131 is filtered by the filter screen 42 and then flows to the water outlet pipe 16.

[0057] The first water sealing ring 43 abuts against the inner wall of the first installation opening 14 in the circumferential direction, thereby sealing water between the water outlet cavity 12 and the first installation opening 14 .

[0058] The fixing sleeve 44 is sleeved on the outside of the button 5, one end of the fixing sleeve 44 is connected to the filter frame 41, and the other end is provided with a first limiting boss 441, and the button 5 can move between the first limiting boss 441 and the filter frame 41; the side wall of the fixing sleeve 44 is provided with a ball mounting hole 442, and the ball 6 is movably arranged in the ball mounting hole 442.

[0059] Specifically, a buckle for connecting with the fixing sleeve 44 is provided at one end of the filter holder 41 , and an inner hook groove is provided on the inner wall of one end of the fixing sleeve 44 close to the filter holder 41 , and the inner hook groove is used to cooperate with the buckle of the filter holder 41 .

[0060] The filter support 41 protrudes toward the inner wall of the fixing sleeve 44 , and can limit the position of the fixing sleeve 44 when the button 5 is pressed.

[0061] The inner wall of the first mounting port 14 near one end of the water outlet chamber 12 is provided with a second limiting boss 142 abutting against the filter frame 41. After the water filter switching assembly and the joint body 1 are assembled, the filter frame 41 abuts against the second limiting boss 142, and at the same time, the ball 6 is inserted into the positioning groove 141, and the filter cartridge 4 abuts against the partition 13.

[0062] The filter frame 41 is provided with a connecting column 411 in the filter frame 41 , and the filter frame 41 is provided with a rib plate connected to the connecting column 411 . The second elastic reset member 7 is sleeved outside the connecting column 411 and abuts against the rib plate.

[0063] The push rod 8 is inserted into the connecting column 411 and is threadedly connected to the connecting column 411 . A second water sealing ring 81 is sleeved on the push rod 8 and abuts against the inner wall of the connecting column 411 in the circumferential direction.

[0064] The water sealing function of the first water sealing ring 43 and the second water sealing ring 81 can prevent the water flow in the water outlet chamber 12 from entering the first installation port 14. The axial movement of the button 5 in the filter cartridge 4 and the rolling of the ball 6 under the abutment of the transition surface 511 are not affected by the water pressure. The water filter switching assembly can be ejected as a whole by simply pressing the button 5.

[0065] In order to adjust the water inlet flow rate, the present invention provides two implementation methods, and the opening and closing degree of the water stopper 2 is controlled by adjusting the length of the push rod 8 extending out of the end of the filter cylinder 4 close to the partition 13.

[0066] Combination Figure 3 In one embodiment, a driving groove is provided on an end surface of the push rod 8 close to the button 5, and the button 5 is provided with a driving rod 512 extending into the driving groove. Driving the button 5 to rotate can drive the push rod 8 to rotate relative to the connecting column 411 and generate axial displacement.

[0067] Combination Figure 4 In another embodiment, the button 5 includes a body 51 and a button cap 52, the transition surface 511 is arranged on the body 51, an operation channel 513 is arranged in the body 51, the button cap 52 covers the operation channel 513 and is detachably connected to the body 51, and a driving groove is arranged on the end surface of the push rod 8 close to the button cap 52. By removing the button cap 52 and inserting a tool into the driving groove to drive the push rod 8 to rotate, the length of the push rod 8 extending out of the filter cartridge 4 can be adjusted, thereby adjusting the position of the water stopper 2 and controlling the amount of water.

[0068] The driving grooves in the above two embodiments can be common slots, cross slots, hexagonal slots, etc.

[0069] When there is a large pressure difference ratio between the cold and hot water pipes, the cold and hot water inlet ratio of the shower product will change, resulting in a change in the outlet water temperature. For example, when the thermostat is adjusted to the original outlet water temperature of 40 degrees, the actual outlet water temperature will no longer be 40 degrees, affecting the user experience. In the case of a large pressure difference between the cold and hot water pipes in the user's home, the present invention can balance the water outlet ratio of the cold and hot water pipes by adjusting the opening and closing degree of the water inlet joint water stopper 2 and the water guide hole 131 on the side with greater pressure, so that the actual outlet water temperature is close to the prompt temperature at the location of the thermostat, which can solve the problem that the large difference in the inlet flow rate of the cold and hot pipes affects the outlet water temperature experience of the shower product.

[0070] When the button 5 moves axially in the filter cartridge 4 , the ball 6 abuts against different positions of the transition surface 511 , thereby changing the relative position of the ball 6 and the positioning groove 141 .

[0071] The button 5 is slidably matched with the inner wall of the fixing sleeve 44 to prevent the button 5 from swinging and causing the movements of different balls 6 to be asynchronous.

[0072] The transition surface 511 of the button 5 may be a first frustum surface 511 a and a cylindrical surface 511 b connected to each other, wherein the large diameter end of the first frustum surface 511 a is connected to an end of the cylindrical surface 511 b away from the second elastic return member 7 .

[0073] When the water filter switching assembly is assembled with the joint body 1, when the button 5 is pressed, the button 5 contacts the ball 6 with the large diameter end of the cylindrical surface 511b or the first truncated table surface 511a (such as Figure 1 ) until the small diameter end of the first circular table surface 511a contacts the ball 6 (such as Figure 5 ), the ball 6 is disengaged from the positioning groove 141, and the water filter switching assembly is unlocked from the first mounting opening 14 as a whole; see Figure 6 When the button is released, the first elastic reset member 3 immediately drives the water stop plug 2 to stop water, and drives the water filter switching assembly to rebound.

[0074] When assembling the water filter switching assembly with the connector body 1, press again Figure 6 The button 5 is inserted into the first installation opening 14 until the filter frame 41 of the filter switching assembly abuts against the second limiting boss 142. At this time, the button 5 is released. When the second elastic reset member 7 drives the button 5 to reset, the button 5 abuts against the ball 6 at the small diameter end of the first round table surface 511a (such as Figure 5 ) until the large diameter end of the first truncated table surface 511a and the cylindrical surface 511b abut against the ball 6 (such as Figure 1 ), the ball 6 is gradually squeezed and stuck into the positioning groove 141, at this time, the filter cartridge 4 is in contact with the partition 13, and the push rod 8 pushes the water stopper 2 away from the water guide hole 131, and the filtering water inlet function is turned on.

[0075] The transition surface 511 of the button 5 may also change continuously and evenly, and the angle between the transition surface 511 and the axial direction of the button 5 gradually increases in the direction away from the second elastic return member 7 .

[0076] When the water filter switching assembly and the joint body 1 are assembled, when the button 5 is pressed, the button 5 moves from the end where the transition surface 511 and the button 5 have a smaller axial angle with the ball 6 to the end where the transition surface 511 and the button 5 have a larger axial angle with the ball 6, and the ball 6 disengages from the positioning groove 141, and the water filter switching assembly as a whole is unlocked from the first mounting port 14; when the button is released, the first elastic reset member 3 drives the water stop plug 2 to stop water, and drives the water filter switching assembly to rebound.

[0077] When assembling the water filter switching assembly with the joint body 1, press the button 5 and insert the water filter switching assembly into the first mounting port 14 until the filter frame 41 of the water filter switching assembly abuts against the second limiting boss 142. At this time, release the button 5. When the second elastic reset member 7 drives the button 5 to reset, the button 5 moves from the transition surface 511 and the end with a larger axial angle between the button 5 and the ball 6 to the transition surface 511 and the end with a smaller axial angle between the button 5 and the ball 6. The ball 6 is gradually squeezed and stuck into the positioning groove 141. At this time, the filter cartridge 4 abuts against the partition 13, and the push rod 8 pushes the water stop plug 2 away from the water guide hole 131, and the filtered water inlet function is turned on.

[0078] The diameter of the ball mounting hole 442 preferably increases gradually from the inner wall to the outer wall of the fixing sleeve 44 , so that the ball 6 keeps rolling toward the button 5 in the fixing sleeve 44 , ensuring that the ball 6 can smoothly escape from the positioning groove 141 .

[0079] The surface of the water stopper 2 in this embodiment opposite to the water guide hole 131 is a spherical surface, a conical surface or a second truncated cone surface, and the end of the water guide hole 131 close to the water inlet chamber 11 is provided with an arc surface adapted to the water stopper 2. Among them, the spherical surface, the conical surface and the second truncated cone surface sealing water stop structure can automatically guide the centering water to seal, and can seal water even if the water stopper is offset, and will not cause the problem of the existing T-shaped rod water stopper structure being unable to seal water due to eccentricity caused by water impact when sealing water. The automatic water stop function of the water stopper 2 of this application has high reliability.

[0080] In addition, the spherical sealing water-stop structure has a large water flow area and small flow loss.

[0081] In order to protect the surface of the water stopper 2 , the push rod 8 of this embodiment is provided with a sheath 82 for abutting against the surface of the water stopper 2 .

[0082] A water storage groove 21 is provided on the side of the water stop plug 2 away from the water guide hole 131. On the one hand, it can facilitate the installation of the first elastic return member 3. The first elastic return member 3 extends into the water storage groove 21 and abuts against the water stop plug 2; on the other hand, the water pressure of the water inlet chamber 11 can help the water stop plug 2 and the water guide hole 131 of the partition 13 to fit and seal water.

[0083] The present invention also discloses a faucet, which includes a faucet body and the above-mentioned easy-to-clean water inlet joint, wherein the water outlet cavity of the joint body is connected to the water inlet end of the faucet body. When the faucet leaks or needs maintenance, the water inlet can be directly closed through the water filter switching component without closing the main valve, which is convenient for use and maintenance.

[0084] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. An easy-to-clean water inlet joint, characterized in that: It includes a joint body, a water stopper, a first elastic reset member and a water filter switching assembly. A water inlet cavity and a water outlet cavity are provided in the joint body, and a partition with a water guide hole is provided between the water outlet cavity and the water inlet cavity; The water stopper and the first elastic reset member are arranged in the water inlet cavity, and the first elastic reset member abuts against the water stopper so that the water stopper blocks the water guide hole; The water filter switching assembly includes a filter cartridge, a button, a ball and a second elastic reset member; The water outlet cavity is provided with a first mounting opening, the filter cartridge passes through the first mounting opening and extends into the water outlet cavity, a push rod is provided at one end of the filter cartridge close to the partition, and the button is provided at the other end of the filter cartridge; The second elastic reset member is disposed in the filter cartridge and has two ends that abut against the button and the filter cartridge respectively; The ball is penetrated through the side wall of the filter cartridge, the button is in contact with the ball, and the inner wall of the first mounting port is provided with a positioning groove matched with the ball. When the button moves axially in the filter cartridge, the ball can be disengaged from or stuck in the positioning groove, and when the ball is stuck in the positioning groove, the filter cartridge is in contact with the partition, and the push rod pushes the water stop plug away from the water guide hole; when the ball is disengaged from the positioning groove, the water filter switching assembly as a whole can be pulled out from the first mounting port.

2. The easy-to-clean water inlet joint according to claim 1, wherein the filter cartridge comprises a filter frame, and a filter screen, a first water sealing ring and a fixing sleeve arranged in sequence along the axial direction of the filter frame; the filter screen is arranged around the circumference of the filter frame, the first water sealing ring abuts against the inner wall of the circumference of the first mounting opening, the fixing sleeve is sleeved outside the button, one end of the fixing sleeve is connected to the filter frame, and the other end is provided with a first limiting boss, and the button can move between the first limiting boss and the filter frame; The side wall of the fixing sleeve is provided with a ball mounting hole, and the ball is movably arranged in the ball mounting hole.

3. The easy-to-clean water inlet joint according to claim 2, characterized in that: A buckle for connecting with the fixing sleeve is provided at one end of the filter frame, and an inner hook groove is provided on the inner wall of one end of the fixing sleeve close to the filter frame, and the inner hook groove is used to cooperate with the buckle.

4. The easy-to-clean water inlet joint according to claim 2, characterized in that: The filter frame protrudes toward the inner wall of the fixing sleeve.

5. The easy-to-clean water inlet joint according to claim 2, characterized in that: A second limiting boss abutting against the filter support is provided on the inner wall of the first installation opening close to one end of the water outlet cavity.

6. The easy-to-clean water inlet joint according to claim 2, characterized in that: The diameter of the ball mounting hole gradually increases along the direction from the inner wall to the outer wall of the fixing sleeve.

7. The easy-to-clean water inlet joint according to claim 2, characterized in that: A connecting column is arranged in the filter frame, the push rod is passed through the connecting column and is threadedly connected to the connecting column, and a second water sealing ring is sleeved on the push rod and abuts against the inner wall of the connecting column in the circumferential direction.

8. The easy-to-clean water inlet joint according to claim 7, characterized in that: A driving groove is provided on an end surface of the push rod close to the button, and the button is provided with a driving rod extending into the driving groove. Driving the button to rotate can drive the push rod to rotate relative to the connecting column and generate axial displacement.

9. The easy-to-clean water inlet joint according to claim 7, characterized in that: The button includes a body and a button cap, the transition surface is arranged on the body, an operation channel is arranged in the body, the button cap covers the operation channel and is detachably connected to the body, and a driving groove is arranged on an end face of the push rod close to the button cap.

10. The easy-to-clean water inlet joint according to claim 7, characterized in that: The push rod is provided with a sheath for abutting against the water stopper.

11. The easy-to-clean water inlet joint according to claim 1, characterized in that: The surface of the water stopper opposite to the water guide hole is a spherical surface, a conical surface or a second frustum surface, and an end of the water guide hole close to the water inlet cavity is provided with an arc surface matched with the water stopper.

12. The easy-to-clean water inlet joint according to claim 1, characterized in that: A water storage groove is provided on one side of the water stopper away from the water guide hole, and the first elastic reset member extends into the water storage groove and abuts against the water stopper.

Images