Valve core and water outlet device

Abstract

The application discloses a valve core and a water outlet device, and relates to the technical field of valve cores. The valve core comprises a shell, a switch, a switching seat, a spacer sleeve, a plugging piece and a valve seat. The switching seat has a first position and a second position. When the switching seat is in the first position, a pressure relief channel is communicated with a second water passing hole, and the plugging piece opens a water outlet channel. When the switching seat is in the second position, the switching seat blocks one end of the pressure relief channel, and the plugging piece closes the water outlet channel. The switching seat is driven to rotate by the switch, the opening and closing of the pressure relief channel are realized, the opening and closing of a large-diameter valve is controlled by small energy, the pressing is smoother, the opening speed of the water inlet channel is slower, and the water hammer phenomenon can be better eliminated. When the switching seat rotates to the second position, the two ends of the switching head abut against the first end wall and the mounting portion respectively, so that water is difficult to seep out from the gap between the switching head and the mounting portion, the sealing property of the valve core is ensured, the water seepage and leakage of the valve core is effectively reduced, and the reliability of the valve core is improved.

Description

Technical Field

[0001] This invention relates to the field of valve core technology, and in particular to a valve core and a water outlet device. Background Technology

[0002] A valve core can switch water flow paths, for example, in water outlet devices like faucets. The switching method is pressing a button; pressing once dispenses water, and pressing again shuts off the water. Related valve cores have a switching seat and a valve seat. Rotating the switching seat connects the through-hole on the switching seat to the pressure relief channel on the valve seat, or blocks the pressure relief channel, thus opening and closing the valve core. However, this method results in poor sealing between the switching seat and the valve seat, allowing water to easily seep through the pressure relief channel to other locations, leading to leakage. Summary of the Invention

[0003] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a valve core that can improve the sealing performance of the valve core and effectively reduce water leakage.

[0004] The present invention also proposes a water outlet device having the above-mentioned valve core.

[0005] According to a first aspect of the present invention, a valve core includes:

[0006] case;

[0007] A switching seat is disposed inside the housing. The switching seat includes a valve stem portion and a switching portion connected to each other. The interior of the switching portion defines a water passage cavity. The switching portion has a first end wall. The first end wall is provided with a first water passage hole and a second water passage hole that communicate with the water passage cavity. The second water passage hole and the first water passage hole are spaced apart.

[0008] A switch, connected to the valve stem, drives the switching seat to rotate;

[0009] A spacer includes a sleeve body and a switching head. The sleeve body has a second end wall that contacts and fits with a first end wall. The second end wall has a third water passage hole. The second end wall is recessed in a direction away from the first end wall to form a mounting part. The mounting part has a through hole. The switching head is mounted on the mounting part and forms a second water passage. The second water passage and the through hole form a pressure relief passage.

[0010] The sealing component is slidably connected to the side of the spacer away from the second end wall, and defines a pressure relief cavity between the sealing component and the spacer. The sealing component is provided with a first water passage and a pilot passage.

[0011] The valve seat includes an annular structure and an outer valve body. The outer valve body is connected to the housing and has a water inlet. The annular structure is located inside the outer valve body and defines a water outlet channel inside. A water inlet channel communicating with the water inlet is defined between the annular structure and the outer valve body. The water inlet channel is connected to the pressure relief chamber through the pilot channel. The water passage chamber is connected to the water outlet channel through the first water passage hole, the third water passage hole, the first water passage channel, and the water outlet channel.

[0012] The switching seat has a first position and a second position. When the switching seat is in the first position, the pressure relief chamber is connected to the pressure relief channel, the second water passage hole, and the water passage cavity. The sealing member and the annular structure are separated, and the water inlet channel is connected to the water outlet channel. When the switching seat is in the second position, the two ends of the switching head abut against the first end wall and the mounting part, respectively. The first end wall closes one end of the pressure relief channel, and the sealing member abuts against the annular structure and closes the water outlet channel.

[0013] The valve core according to embodiments of the present invention has at least the following beneficial effects:

[0014] The switching seat has a first position and a second position. When the switch drives the switching seat to the first position, the pressure relief chamber is connected through the pressure relief channel, the second water passage hole, and the water passage cavity. Water enters the pressure relief chamber from the inlet channel through the pilot channel, then sequentially through the pressure relief channel, the second water passage hole, the water passage cavity, the first water passage hole, the third water passage hole, and the first water passage channel, finally entering the outlet channel. This causes the pressure in the pressure relief chamber to decrease, resulting in a pressure greater in the inlet channel than in the pressure relief chamber. This causes the sealing element to slide open the outlet channel, allowing the inlet channel to directly connect to the outlet channel, and water is discharged from the water outlet device. When the switch drives the switching seat to the second position, the first end wall blocks the pressure relief channel. Water entering the pressure relief chamber from the inlet channel cannot be discharged from the outlet channel, resulting in a pressure less in the inlet channel than in the pressure relief chamber. This causes the sealing element to abut against the annular structure, closing the outlet channel and shutting off the water from the water outlet device. The pressure relief channel is opened and closed by rotating the switching seat driven by a switch, controlling the large-diameter valve with less energy. This results in smoother pressing, easier switching, and a slower opening of the inlet channel, effectively eliminating water hammer. When the switching seat rotates to the second position, both ends of the switching head abut against the first end wall and the mounting part respectively, making it difficult for water to seep out from the gap between the switching head and the mounting part. This ensures the valve core's sealing, effectively reducing leakage and improving its reliability.

[0015] According to some embodiments of the present invention, the spacer further includes a first elastic member, the two ends of which abut against the bottom wall of the switching head and the mounting portion, respectively.

[0016] According to some embodiments of the present invention, the end of the switching head facing the first end wall is provided with a boss, the boss being able to be positioned and engaged with the second water passage hole, and the second water passage passing through the boss.

[0017] According to some embodiments of the present invention, the periphery of the boss is provided with a first guide slope, and the periphery of the end of the second water passage facing the switching head is provided with a second guide slope.

[0018] According to some embodiments of the present invention, a plurality of second water passage holes are provided, and the plurality of second water passage holes are arranged at circumferential intervals along the first water passage hole.

[0019] According to some embodiments of the present invention, the switching head is made of an elastic material.

[0020] According to some embodiments of the present invention, the spacer has an annular portion on the side facing the sealing member, the annular portion defining a guide cavity, the sealing member having a guide post slidably connected to the guide cavity, and the guide cavity communicating with the third water passage and the first water passage.

[0021] According to some embodiments of the present invention, the guide post is provided with a sealing element, which is disposed around the guide post to allow the guide post and the annular portion to slide and seal.

[0022] According to some embodiments of the present invention, the sealing member includes a pilot diaphragm and a support base, the outer periphery of the pilot diaphragm is connected to the spacer and the valve seat, the inner periphery of the pilot diaphragm is connected to the support base, and the pilot diaphragm is capable of abutting or separating from the annular structure.

[0023] The water outlet device according to a second aspect of the present invention includes the valve core described in the above embodiment.

[0024] The water outlet device according to embodiments of the present invention has at least the following beneficial effects:

[0025] The switching seat has a first position and a second position. When the switch drives the switching seat to the first position, the pressure relief chamber is connected through the pressure relief channel, the second water passage hole, and the water passage cavity. Water enters the pressure relief chamber from the inlet channel through the pilot channel, then sequentially through the pressure relief channel, the second water passage hole, the water passage cavity, the first water passage hole, the third water passage hole, and the first water passage channel, finally entering the outlet channel. This causes the pressure in the pressure relief chamber to decrease, resulting in a pressure greater in the inlet channel than in the pressure relief chamber. This causes the sealing element to slide open the outlet channel, allowing the inlet channel to directly connect to the outlet channel, and water is discharged from the water outlet device. When the switch drives the switching seat to the second position, the first end wall blocks the pressure relief channel. Water entering the pressure relief chamber from the inlet channel cannot be discharged from the outlet channel, resulting in a pressure less in the inlet channel than in the pressure relief chamber. This causes the sealing element to abut against the annular structure, closing the outlet channel and shutting off the water from the water outlet device. The pressure relief channel is opened and closed by rotating the switching seat driven by a switch, controlling the large-diameter valve with less energy. This results in smoother pressing, easier switching, and a slower opening of the inlet channel, effectively eliminating water hammer. When the switching seat rotates to the second position, both ends of the switching head abut against the first end wall and the mounting part respectively, making it difficult for water to seep out from the gap between the switching head and the mounting part. This ensures the valve core's sealing, effectively reducing leakage and improving its reliability.

[0026] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0028] Figure 1 This is a schematic diagram of the valve core structure according to an embodiment of the present invention;

[0029] Figure 2 yes Figure 1 A schematic diagram of the structure of the valve core hidden in the housing;

[0030] Figure 3 yes Figure 1 A cross-sectional view of the valve core;

[0031] Figure 4 yes Figure 3 A schematic diagram showing the connection between the inlet and outlet channels of the central valve core;

[0032] Figure 5 This is an exploded view of a portion of the valve core structure according to an embodiment of the present invention;

[0033] Figure 6 This is a schematic diagram of the valve core switching seat according to an embodiment of the present invention;

[0034] Figure 7 yes Figure 6 Another structural diagram of the switching seat in the middle;

[0035] Figure 8 This is an exploded schematic diagram of the spacer sleeve of the valve core according to an embodiment of the present invention;

[0036] Figure 9 yes Figure 8 A schematic diagram from another perspective of the spacer;

[0037] Figure 10 yes Figure 4 Enlarged diagram of point A in the middle.

[0038] Figure label:

[0039] Valve core 1000;

[0040] Casing 100;

[0041] Switch 200; Button 210; First mating post 211; Rotating seat 220; Second mating post 221; Limiting cavity 222; Second elastic element 230;

[0042] Switching seat 300; valve stem portion 310; water passage cavity 320; first water passage hole 330; second water passage hole 340; second guide slope 341; switching part 350; first end wall 351;

[0043] Pressure relief chamber 401; partition sleeve 410; pressure relief channel 411; third water passage hole 412; sleeve body 413; mounting part 4131; opening 4132; through hole 4133; switching head 414; boss 4141; second water passage 4142; first guide slope 4143; first elastic element 415; annular part 416; guide cavity 4161; second end wall 417; sealing element 420; first water passage 421; guide post 422; sealing ring 423; pilot diaphragm 424; support base 425; pilot channel 4251; valve seat 430; water inlet channel 431; water outlet channel 432; annular structure 433; outer valve body 434; water inlet 435; water outlet 436; cleaning spring 440; cleaning rod 441; spiral part 442;

[0044] Filter size 500. Detailed Implementation

[0045] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0046] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0047] In the description of this invention, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0048] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0049] Reference Figure 1 and Figure 2 As shown, the valve core 1000 of one embodiment of the present invention can be used in a water outlet device to control the on / off state of the water circuit. For example, the water outlet device can be a kitchen faucet or a shower faucet, and the control method can be pressing, rotating, gesture control, etc. All subsequent embodiments of the present invention take pressing as an example; pressing once dispenses water, and pressing again shuts off the water, making operation simple and convenient.

[0050] Reference Figure 3 As shown, the valve core 1000 of this embodiment includes a housing 100, a switching seat 300, a switch 200, a spacer 410, a sealing member 420, and a valve seat 430. The switching seat 300 is disposed inside the housing 100, as shown in the figure. Figure 6 and Figure 7As shown, the switching seat 300 includes a valve stem portion 310 and a switching portion 350 fixedly connected. For example, the valve stem portion 310 and the switching portion 350 are integrally formed, or connected by fasteners. The switching portion 350 internally defines a water passage cavity 320, and the end of the switching portion 350 opposite to the valve stem portion 310 is a first end wall 351. The first end wall 351 is provided with first water passage holes 330 and second water passage holes 340, both of which pass through the water passage cavity 320. There can be one or more second water passage holes 340, and when there are multiple second water passage holes 340, they are spaced circumferentially along the first water passage holes 330. For example, there are four second water passage holes 340, evenly spaced along the first end wall 351. A portion of the switch 200 is disposed inside the housing 100 and connected to the valve stem portion 310, while another portion protrudes from the housing 100 for easy pressing. The switch 200 is used to drive the switching seat 300 to rotate. For example, pressing the switch 200 once will cause the valve stem 310 to rotate by a preset angle. Since the valve stem 310 and the switching seat 300 are fixedly connected, the rotation of the valve stem will also cause the switching seat 300 to rotate by a preset angle.

[0051] Continue to refer to Figure 3 As shown, the housing 100 has a step-like structure. A spacer 410 is disposed within the housing 100 and abuts against the step. The spacer 410 has a pressure relief channel 411 and a second end wall 417 at one end facing the switching seat 300. The second end wall 417 has a third water passage 412, and the second end wall 417 contacts and engages with the first end wall 351. A sealing member 420 is disposed within the housing 100 and slidably connected to the side of the spacer 410 away from the second end wall 417, defining a pressure relief chamber 401 between the sealing member 420 and the spacer 410. The sealing member 420 has a first water passage 421 and a pilot passage 4251. The valve seat 430 includes an annular structure 433 and an outer valve body 434. The outer valve body 434 is connected to the housing 100 and has a water inlet 435. The annular structure 433 is located inside the outer valve body 434, and the interior of the annular structure 433 defines a water outlet channel 432. A water inlet channel 431 is defined between the annular structure 433 and the outer valve body 434, and the water inlet channel 431 is connected to the water inlet 435. The water inlet channel 431 is connected to the pressure relief chamber 401 through a pilot channel 4251, meaning that water enters the water inlet channel 431 from the water inlet 435 and then enters the pressure relief chamber 401 through the pilot channel 4251. The pressure relief chamber 401 is connected to the water passage chamber 320 through a pressure relief channel 411. The water passage chamber 320 is connected to the water outlet channel 432 through a first water passage hole 330, a third water passage hole 412, the first water passage channel 421, and the water outlet channel 432.

[0052] The switch 300 has a first position and a second position, and switching between the first position and the second position is achieved by pressing the switch 200. When the switch 300 is in the first position, for example... Figure 4 At this position, the pressure relief chamber 401 is connected through the pressure relief channel 411, the second water passage 340, and the water passage 320. Water sequentially passes through the inlet 435, the inlet channel 431, the pilot channel 4251, the pressure relief chamber 401, the pressure relief channel 411, the second water passage 340, the water passage 320, the first water passage 330, the third water passage 412, and the first water passage 421, finally entering the pressure relief channel 411. Therefore, the pressure in the inlet channel 431 is greater than the pressure in the pressure relief chamber 401, causing the sealing element 420 to move upwards, separating it from the annular structure 433. The inlet channel 431 then directly connects to the outlet channel 432, and the water is discharged from the outlet 436 of the outlet channel 432, which is equivalent to turning on a faucet.

[0053] When switch 200 is pressed again, switch 300 switches to the second position, for example... Figure 3 At the designated position, the first end wall 351 can seal one end of the pressure relief channel 411, meaning the second through hole 4133 and the pressure relief channel 411 are no longer connected. At this time, water in the pressure relief chamber 401 cannot enter the water chamber 320 through the pressure relief channel 411, meaning the water in the pressure relief chamber 401 cannot be discharged. Since the pressure in the inlet channel 431 is less than the pressure in the pressure relief chamber 401, the sealing member 420 moves downward and abuts against the annular structure 433, thereby sealing the outlet channel 432, which means the faucet is turned off.

[0054] Understandably, multiple second water passages 340 are spaced circumferentially along the first water passage 330. Therefore, when the switch 200 is pressed once, one of the second water passages 340 connects to the pressure relief channel 411. When the switch 200 is pressed again, the pressure relief channel 411 is closed by the first end wall 351. By converting the linear motion of the switch 200 into the rotational motion of the switching seat 300, the pressure relief channel 411 is opened and closed. This method controls the opening and closing of a large-diameter valve with less energy, is unaffected by water pressure, provides smoother pressing and easier switching, and allows the inlet channel 431 to open slowly, effectively eliminating water hammer. Furthermore, water pressure fluctuations have minimal impact on the position of the switching seat 300, effectively mitigating the increased wear between the switching seat 300 and the spacer 410 caused by water pressure fluctuations, thereby improving the reliability of the switching seat 300 in controlling the opening and closing of the pressure relief channel 411.

[0055] Reference Figure 2As shown, in an embodiment of the present invention, the switch 200 includes a button 210 and a rotating base 220. The rotating base 220 is disposed within the housing 100 and has a limiting cavity 222. The valve stem portion 310 is inserted into the limiting cavity 222 so that the rotating base 220 can drive the valve stem portion 310 to rotate. For example, the cross-section of the valve stem portion 310 is polygonal, and the cross-section of the limiting cavity 222 is also polygonal, or other shapes that can cooperate with the valve stem portion 310 so that the rotating base 220 can drive the valve stem portion 310 to rotate. The button 210 and the rotating base 220 are connected, and part of the structure is disposed outside the housing 100. The button 210 has an internal thread, which facilitates the connection between the faucet switch and the button 210, improving versatility. The button 210 has multiple first mating posts 211, which are spaced apart circumferentially along the button 210. The rotating seat 220 has multiple second mating posts 221, which are spaced apart circumferentially along the rotating seat 220. The housing 100 has multiple grooves (not shown in the figure) inside, and the multiple first mating posts 211 and multiple second mating posts 221 respectively mate with the multiple grooves, which serve as guides and limiters. The opposite ends of the first mating posts 211 and the second mating posts 221 are both provided with inclined surfaces, so that when the button 210 is pressed down, the rotating seat 220 rotates due to the abutting engagement of the inclined surfaces, thereby driving the valve stem 310 to rotate. A second elastic element 230 is provided between the rotating seat 220 and the switching seat 300. The second elastic element 230 is a spring, or elastic rubber or silicone, etc. The second elastic element 230 is sleeved on the valve stem portion 310, and its two ends abut against the rotating seat 220 and the switching portion 350 respectively, so that the rotating seat 220 can move upward or return to its original position under the action of elastic force. This pressing structure is similar to the pressing method of a ballpoint pen, which can realize the automatic extension and locking of the switch 200, and the pressing is smooth and reliable.

[0056] Reference Figure 8 and Figure 9As shown, in an embodiment of the present invention, the spacer 410 includes a sleeve body 413 and a switching head 414. The sleeve body 413 is generally bottle cap shaped and has a second end wall 417. The second end wall 417 is recessed in a direction away from the first end wall 351 to form a mounting portion 4131. The mounting portion 4131 forms a receiving cavity and has an opening 4132 facing the first end wall 351 and a through hole 4133 communicating with the pressure relief cavity 401. The through hole 4133 is located on the bottom wall of the receiving cavity. The switching head 414 is installed in the receiving cavity of the mounting portion 4131 and forms a second water passage 4142. The second water passage 4142 and the through hole 4133 communicate to form a pressure relief channel 411. Therefore, when the switching seat 300 is in the first position, the water in the pressure relief chamber 401 can sequentially pass through the through hole 4133, the second water passage 4142, and the second water passage 340 before entering the water passage chamber 320. When the switching seat 300 rotates to the second position, the two ends of the switching head 414 abut against the first end wall 351 and the mounting part 4131 respectively. Therefore, water is unlikely to seep out from the gap between the switching head 414 and the mounting part 4131, thus ensuring the sealing of the valve core 1000, effectively reducing the leakage of the valve core 1000, and improving the reliability of the valve core 1000.

[0057] To further enhance the sealing effect and reduce the possibility of water entering the second water passage 340 through the gap between the switching head 414 and the first end wall 351, in one embodiment of the present invention, the switching head 414 is elastic and made of silicone or rubber material. Both ends of the switching head 414 abut against the bottom wall of the first end wall 351 and the mounting portion 4131, respectively, thereby ensuring the sealing effect between the switching head 414 and the first end wall 351 and preventing water from seeping out between the switching head 414 and the inner wall of the receiving cavity, effectively improving the leakage situation. Alternatively, refer to... Figure 8 and Figure 9 As shown, in another embodiment of the present invention, the spacer 410 further includes a first elastic member 415. The two ends of the first elastic member 415 abut against the bottom walls of the switching head 414 and the mounting portion 4131, respectively. The first elastic member 415 can be a spring, silicone, rubber, or other elastic material. Taking a spring as an example, one possible installation configuration is: the switching head 414 is sleeve-shaped, and the spring is disposed within the second water passage 4142, with its two ends abutting against the inner wall of the switching head 414 and the bottom wall of the mounting portion 4131, respectively.

[0058] Reference Figure 10As shown, in an embodiment of the present invention, a boss 4141 is provided at the end of the switching head 414 facing the first end wall 351, and a second water passage 4142 passes through the boss 4141. The boss 4141 can be positioned and engaged with the second water passage 340. For example, when the switching seat 300 is in the first position, the boss 4141 is located inside the second water passage 340, and the second water passage 4142 communicates with the second water passage 340; when the switching seat 300 is in the second position, the end faces of the first end wall 351 and the boss 4141 abut against each other to close the second water passage 4142. It can be understood that the engagement of the boss 4141 and the first end wall 351 reduces the engagement area between the first end wall 351 and the switching head 414, thereby improving the sealing performance when the switching head 414 and the first end wall 351 abut against each other. (Refer to...) Figure 3 As shown in the embodiment of the present invention, the height of the switching head 414 in the vertical direction is less than the height of the receiving cavity of the mounting part 4131, so that the switching head 414 can be fully housed in the receiving cavity, effectively avoiding the boss 4141 protruding too high and causing the switching seat 300 to tilt. Therefore, the design of the switching head 414 is reasonable and has high reliability.

[0059] Reference Figure 10 As shown in the embodiment of the present invention, the periphery of the boss 4141 is provided with a first guide slope 4143, and the periphery of the end of the second water passage 340 facing the switching head 414 is provided with a second guide slope 341. When the switching seat 300 rotates, the first guide slope 4143 can slide and engage with the second guide slope 341 to improve the smoothness of the rotation of the switching seat 300 and effectively reduce the phenomenon of jamming.

[0060] Reference Figure 3 and Figure 9 As shown in the embodiment of the present invention, the spacer 410 has an annular portion 416 on the side facing the sealing member 420, the annular portion 416 defining a guide cavity 4161. The sealing member 420 has a guide post 422, the guide post 422 and the guide cavity 4161 are slidably connected, and the guide cavity 4161 communicates with the third water passage 412 and the first water passage 421. Therefore, water in the water passage 320 can pass through the first water passage 330, the third water passage 412, the guide cavity 4161, the first water passage 421 in sequence, and finally enter the water outlet channel 432. The first water passage 421 can extend into the interior of the guide post 422 and communicate with the guide cavity 4161, which is beneficial for water to enter the first water passage 421 from the guide cavity 4161. The guide post 422 and the guide cavity 4161 are slidably connected, which facilitates the movement of the sealing member 420 along the length of the guide cavity 4161. Therefore, the guide cavity 4161 has a guiding function, so that the sealing member 420 can accurately abut or separate from the annular structure 433, thereby improving reliability.

[0061] Reference Figure 5 As shown in the embodiment of the present invention, the guide post 422 is provided with a sealing element, which can be a sealing ring 423. The sealing ring 423 is sleeved on the guide post 422, that is, the sealing ring 423 is arranged around the guide post 422. When the guide post 422 and the guide cavity 4161 are slidably connected, the sealing ring 423 and the inner wall of the guide cavity 4161 abut and seal, effectively improving the leakage situation. There can be multiple sealing rings 423, for example, two, and the two sealing rings 423 are spaced apart along the axial direction of the guide post 422. Multiple sealing rings 423 can improve the sealing effect, further reduce the probability of leakage, and improve the reliability of the valve core 1000.

[0062] Reference Figure 4 and Figure 5 As shown in the embodiment of the present invention, the sealing member 420 includes a pilot diaphragm 424 and a support base 425. The outer periphery of the pilot diaphragm 424 is connected to the spacer 410 and the valve seat 430, and the inner periphery of the pilot diaphragm 424 is connected to the support base 425. The connection method can be snap-fit ​​or fasteners such as screws or bolts. The support base 425 is provided with a guide post 422, which is slidably connected to the guide cavity 4161. Therefore, the support base 425 can drive the pilot diaphragm 424 to move up and down, so that the pilot diaphragm 424 and the annular structure 433 abut or separate. The pilot diaphragm 424 can be made of elastic materials such as rubber or silicone to improve the sealing effect when it abuts against the annular structure 433.

[0063] Continue to refer to Figure 4 and Figure 5 As shown, in an embodiment of the present invention, a cleaning spring 440 is further provided between the sealing member 420 and the spacer 410. The two ends of the cleaning spring 440 abut against the sealing member 420 and the spacer 410 respectively. Therefore, the cleaning spring 440 can apply a downward elastic force to the sealing member 420 to improve the sealing effect when the sealing member 420 abuts against the annular structure 433. The cleaning spring 440 includes a helical portion 442 and a cleaning rod 441. The cleaning rod 441 and the helical portion 442 are connected. The helical portion 442 is sleeved on the guide rod, while the cleaning rod 441 passes through the pilot channel 4251. It is understandable that since the sealing component 420 moves up and down when the valve core 1000 is opened or closed, the cleaning rod 441 can be understood as moving up and down along the pilot channel 4251, thereby pushing out impurities, moss and other substances in the pilot channel 4251, effectively reducing the blockage of the pilot channel 4251 and improving the reliability of the valve core 1000.

[0064] Reference Figure 2 and Figure 3As shown in the embodiment of the present invention, the valve core 1000 further includes a filter screen 500, which surrounds the outer periphery of the outer valve body 434 and covers the water inlet 435. The filter screen 500 has multiple filter holes, which effectively filter impurities in the water and improve the quality of the output water.

[0065] This invention provides a water outlet device according to one embodiment, including the valve core 1000 described in the above embodiments. The water outlet device can be a faucet for bathrooms, a wall-mounted shower faucet, or a recessed shower faucet, etc., with different application scenarios. In this embodiment, the water outlet device uses the valve core 1000 described above. The switching seat 300 of the valve core 1000 is disposed within the housing 100 and connected to a switch 200, and the switch 200 can rotate the switching seat 300 by pressing it. The switching portion 350 of the switching seat 300 defines a water passage cavity 320, a first water passage hole 330, and a second water passage hole 340. The spacer 410 and the sealing member 420 define a pressure relief chamber 401. The spacer 410 is provided with a pressure relief channel 411 and a third water passage 412. The sealing member 420 is provided with a first water passage 421. The valve seat 430 defines an inlet channel 431 and an outlet channel 432. The sealing member 420 can abut against or separate from the annular structure 433 of the valve seat 430, so that the inlet channel 431 and the outlet channel 432 are isolated or connected, thereby realizing a water passage.

[0066] The switching seat 300 has a first position and a second position. By pressing the switch 200, the switching seat 300 is rotated to the first position. At this time, the pressure relief chamber 401 is connected through the pressure relief channel 411, the second water passage 340, and the water passage 320. Therefore, water enters the pressure relief chamber 401 from the water inlet channel 431 through the pilot channel 4251, and then sequentially passes through the pressure relief channel 411, the second water passage 340, the water passage 320, the first water passage 330, the third water passage 412, and the first water passage 421, and finally enters the water outlet channel 432. This causes the pressure in the pressure relief chamber 401 to drop, so the pressure in the water inlet channel 431 will be greater than the pressure in the pressure relief chamber 401. This causes the sealing member 420 to slide open the water outlet channel 432. At this time, the water inlet channel 431 can be directly connected to the water outlet channel 432, and the water outlet device opens to discharge water. When switch 200 is pressed again, switch 300 rotates to the second position. At this time, the two ends of switch head 414 abut against the first end wall 351 and the mounting part 4131 respectively. The first end wall 351 of switch 300 will block the pressure relief channel 411. Water entering the pressure relief chamber 401 from the water inlet channel 431 cannot be discharged from the water outlet channel 432. Therefore, the pressure in the water inlet channel 431 is less than the pressure in the pressure relief chamber 401, so that the sealing part 420 and the annular structure 433 abut against each other to close the water outlet channel 432, thereby shutting off the water outlet device.

[0067] Understandably, multiple second water passages 340 are spaced circumferentially along the first water passage 330. Therefore, when the switch 200 is pressed once, one of the second water passages 340 connects to the pressure relief channel 411. When the switch 200 is pressed again, the pressure relief channel 411 is closed by the first end wall 351. By converting the linear motion of the switch 200 into the rotational motion of the switching seat 300, the pressure relief channel 411 is opened and closed. This allows for controlling the opening and closing of a large-diameter valve with less energy, smoother pressing, less effort required for switching, and allows the inlet channel 431 to open slowly, effectively eliminating water hammer. Furthermore, water pressure fluctuations have minimal impact on the position of the switching seat 300, effectively mitigating the increased wear between the switching seat 300 and the spacer 410 caused by water pressure fluctuations, thereby improving the reliability of the switching seat 300 in controlling the opening and closing of the pressure relief channel 411. When the switching seat 300 rotates to the second position, the two ends of the switching head 414 abut against the first end wall 351 and the mounting part 4131 respectively. Therefore, water is difficult to seep out from the gap between the switching head 414 and the mounting part 4131, thereby ensuring the sealing of the valve core 1000 and effectively reducing the leakage of the valve core 1000.

[0068] Since the water outlet device adopts all the technical solutions of the valve core 1000 in the above embodiments, it has at least all the beneficial effects brought about by the technical solutions in the above embodiments, which will not be repeated here.

[0069] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A valve core, characterized in that, include: case; A switching seat is disposed inside the housing. The switching seat includes a valve stem portion and a switching portion connected to each other. The interior of the switching portion defines a water passage cavity. The switching portion has a first end wall. The first end wall is provided with a first water passage hole and a second water passage hole that communicate with the water passage cavity. The second water passage hole and the first water passage hole are spaced apart. A switch, connected to the valve stem, drives the switching seat to rotate; A spacer includes a sleeve body and a switching head. The sleeve body has a second end wall that contacts and fits with a first end wall. The second end wall has a third water passage hole. The second end wall is recessed in a direction away from the first end wall to form a mounting part. The mounting part has a through hole. The switching head is mounted on the mounting part and forms a second water passage. The second water passage and the through hole form a pressure relief passage. The sealing component is slidably connected to the side of the spacer away from the second end wall, and defines a pressure relief cavity between the sealing component and the spacer. The sealing component is provided with a first water passage and a pilot passage. The valve seat includes an annular structure and an outer valve body. The outer valve body is connected to the housing and has a water inlet. The annular structure is located inside the outer valve body and defines a water outlet channel inside. A water inlet channel communicating with the water inlet is defined between the annular structure and the outer valve body. The water inlet channel is connected to the pressure relief chamber through the pilot channel. The water passage chamber is connected to the water outlet channel through the first water passage hole, the third water passage hole, the first water passage channel, and the water outlet channel. The switching seat has a first position and a second position. When the switching seat is in the first position, the pressure relief chamber is connected to the pressure relief channel, the second water passage hole, and the water passage cavity. The sealing member and the annular structure are separated, and the water inlet channel is connected to the water outlet channel. When the switching seat is in the second position, the two ends of the switching head abut against the first end wall and the mounting part, respectively. The first end wall closes one end of the pressure relief channel, and the sealing member abuts against the annular structure and closes the water outlet channel.

2. The valve core according to claim 1, characterized in that, The spacer also includes a first elastic element, the two ends of which abut against the bottom wall of the switching head and the mounting part, respectively.

3. The valve core according to claim 1, characterized in that, The switching head has a boss at one end facing the first end wall, the boss can be positioned and engaged with the second water passage hole, and the second water passage is inserted through the boss.

4. The valve core according to claim 3, characterized in that, The boss has a first guide slope around its periphery, and the second water passage hole has a second guide slope around its periphery at the end facing the switching head.

5. The valve core according to claim 1, characterized in that, The second water passage is provided in multiple ways, and the multiple second water passages are arranged at intervals along the circumference of the first water passage.

6. The valve core according to claim 1, characterized in that, The switching head is made of an elastic material.

7. The valve core according to claim 1, characterized in that, The spacer has an annular portion on the side facing the sealing member, the annular portion defining a guide cavity, the sealing member having a guide post slidably connected to the guide cavity, and the guide cavity communicating with the third water passage and the first water passage.

8. The valve core according to claim 7, characterized in that, The guide post is provided with a sealing element, which is arranged around the guide post to allow the guide post and the annular portion to slide and seal.

9. The valve core according to claim 1, characterized in that, The sealing component includes a pilot diaphragm and a support base. The outer periphery of the pilot diaphragm is connected to the spacer and the valve seat, and the inner periphery of the pilot diaphragm is connected to the support base. The pilot diaphragm can abut against or separate from the annular structure.

10. A water outlet device, characterized in that, The valve core includes any one of claims 1 to 9.

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