Valve element and water outlet device

Abstract

The utility model discloses a valve element and a water outlet device. The valve element comprises a body, a first operation piece and a second operation piece. The first operating piece rotates around a rotating axis relative to the body so as to switch water on and off or adjust the water outlet temperature of the valve element; the second operating part is arranged in the first operating part in the direction of the rotating axis, and the second operating part is suitable for moving relative to the first operating part in the extending direction of the rotating axis under the action of external force so as to adjust the water outlet flow of the valve element; the water outlet device is provided with the valve element of the structure. Compared with a valve element in the prior art, due to the fact that the second operation piece is arranged in the first operation piece and can be operated through a tool, a handle does not need to be additionally arranged, only the first operation piece is exposed in appearance, cost is saved, and the appearance is more concise.

Description

Technical Field

[0001] This utility model relates to the field of sanitary ware technology, specifically to a valve core and a water outlet device. Background Technology

[0002] In existing technology, an adjustable flow mixing valve core includes a valve body, a fixed valve plate, a movable valve plate, a piston, a temperature regulating valve rod, and a flow regulating valve rod. The fixed valve plate has a cold water through-hole, a hot water through-hole, and an outlet through-hole. The temperature regulating valve rod is sleeved on the flow regulating valve rod. The movable valve plate is driven by the temperature regulating valve rod to rotate around its own axis. The movable valve plate has a mixing cavity, which has a central cavity and a side cavity connected through the valve port. The central cavity is connected to the outlet through-hole. The rotation of the movable valve plate allows the side cavity to connect with the cold water through-hole and / or the hot water through-hole. The movable valve plate has a through-hole, through which the piston passes and is driven by the flow regulating valve rod, which can rotate around its own axis, to move up and down in the central cavity, thereby changing the flow area of ​​the valve port and adjusting the flow rate. Since the temperature and flow rate are adjusted by rotating the temperature regulating valve rod and the flow regulating valve rod respectively, each temperature regulating valve rod and the flow regulating valve rod needs to be equipped with a handwheel for easy rotation, which is costly and has a complex appearance. Utility Model Content

[0003] The purpose of this utility model is to provide a valve core and a water outlet device. Compared with the prior art, the product only has one handwheel, which is lower in cost and simpler in appearance.

[0004] To achieve the above objectives, the present invention and its related embodiments adopt the following technical solutions, but are not limited to the following solutions:

[0005] The first technical solution relates to a valve core, characterized in that it includes a body, a first operating member, and a second operating member; the first operating member rotates relative to the body about a rotation axis to switch the water supply on / off or adjust the outlet water temperature of the valve core; the second operating member is disposed inside the first operating member along the rotation axis direction, and the second operating member is adapted to move relative to the first operating member in the direction extending along the rotation axis under the action of an external force to adjust the outlet water flow of the valve core.

[0006] The second technical solution is based on the first technical solution, wherein the main body is provided with a cold water inlet, a hot water inlet, an outlet, and a water passage cavity, the water passage cavity includes a first cavity and a second cavity that are interconnected, the second cavity being always connected to the outlet; when the first operating member rotates relative to the main body, it changes the water passage area of ​​the cold water inlet and the hot water inlet connected to the first cavity.

[0007] The third technical solution is based on the second technical solution, wherein the first operating member is provided with a mounting cavity and an operating hole, the mounting cavity is adapted to accommodate the second operating member and communicate with the second cavity; the operating hole communicates with the mounting cavity and is adapted to insert a tool to manipulate the second operating member, so that the second operating member and the first operating member are screwed together to enter or exit the second cavity, thereby changing the flow area from the first cavity to the second cavity.

[0008] The fourth technical solution is based on the second technical solution, wherein the body includes a housing, a moving valve plate, and a fixed valve plate; the housing is provided with a cold water inlet, a hot water inlet, and an outlet; the moving valve plate is provided with a water passage chamber; the fixed valve plate is provided with a cold water passage port, a hot water passage port, and an outlet passage port; the cold water passage port is connected to the cold water inlet, the hot water passage port is connected to the hot water inlet, and the outlet passage port is connected to the second chamber and the outlet; the first operating member passes through the housing and is anti-rotatingly connected to the moving valve plate, the fixed valve plate is anti-rotatingly connected to the housing and cooperates with the first operating member to restrict the movement of the moving valve plate in the axial direction of the housing.

[0009] The fifth technical solution is based on the first technical solution, wherein the second operating member is provided with an operating mating hole, and the tool is adapted to engage with the operating mating hole to prevent rotation, so as to drive the second operating member and the first operating member to engage in a helical connection.

[0010] The sixth technical solution is based on the fourth technical solution, wherein the housing includes an outer shell and a base; the outer shell is provided with a slot and a guide ramp, and the base is provided with a snap-fit ​​connector; the snap-fit ​​connector is adapted to move relative to the guide ramp to enter the slot, so that the outer shell engages with the base.

[0011] The seventh technical solution is based on the sixth technical solution, wherein the outer shell is provided with a first positioning groove, the base is provided with a positioning block, and the positioning block is adapted to be inserted into the first positioning groove so that the card connector corresponds to and is inserted into the card groove.

[0012] The eighth technical solution is based on the sixth technical solution, wherein the outer shell is provided with a first stop block, the first operating member is provided with a second stop block, and the first stop block and the second stop block cooperate to stop the first operating member from rotating relative to the body between a first position and a second position; in the first position, the water passage cavity is only connected to one of the cold water inlet and the hot water inlet; in the second position, the water passage cavity is only connected to the other of the cold water inlet and the hot water inlet.

[0013] The ninth technical solution relates to a water outlet device, which includes a first valve and a valve core as described in any one of the second to eighth technical solutions. The valve core is installed in the first valve. The first valve is provided with a cold water inlet channel, a hot water inlet channel and a first water outlet channel respectively connected to the cold water inlet, the hot water inlet and the water outlet. The first water outlet channel has a first water outlet connector.

[0014] The tenth technical solution is based on the ninth technical solution, and it further includes a second valve, the second valve having at least two second water outlet connectors, the second water outlet connectors being connected to the first water outlet connector; the second valve includes a switch valve core corresponding to each second water outlet connector, to control the on / off water flow of each second water outlet connector respectively.

[0015] Compared with existing technologies, the above technical solution has the following beneficial effects:

[0016] In the first technical solution, when switching the water supply or adjusting the outlet water temperature or flow rate of the valve core, the first or second operating component can be operated accordingly. Since the first operating component rotates relative to the main body around the rotation axis, it can be operated by rotation. The second operating component is located inside the first operating component and is suitable for moving relative to the first operating component along the rotation axis under the action of external force. Therefore, a tool can be inserted into the first operating component to operate the second operating component, thereby controlling its movement relative to the first operating component to adjust the outlet water flow rate. Compared with the valve core of the prior art, since the second operating component is located inside the first operating component and is operated by a tool, there is no need to set an additional handle. Only the first operating component is exposed in appearance, which saves costs and has a simpler appearance.

[0017] In the second technical solution, by manipulating the first operating component to rotate relative to the main body, the water flow area connecting the cold water inlet and the hot water inlet to the first cavity is changed, thereby changing the water inflow ratio of cold and hot water into the first cavity and achieving temperature regulation.

[0018] In the third technical solution, a tool is inserted into the installation cavity through the operating hole to control the second operating component, so that the second operating component and the first operating component are screwed together to enter or exit the second cavity, changing the flow area from the first cavity to the second cavity. The second cavity is always connected to the water outlet, thereby changing the water flow rate and realizing the regulation of the flow rate.

[0019] In the fourth technical solution, the first operating element is connected to the moving valve plate to prevent rotation, thereby controlling the rotation of the moving valve plate. The fixed valve plate is connected to the housing to prevent rotation and cooperates with the first operating element to restrict the axial movement of the moving valve plate relative to the housing, thus preventing the water circuit seal from failing.

[0020] In the fifth technical solution, the operating hole is suitable for engaging with the tool to prevent rotation, which facilitates the control of the second operating member to make it move spirally relative to the first operating member.

[0021] In the sixth technical solution, the housing includes an outer shell and a base, which are fixedly connected by a snap-fit ​​mechanism; the guide slope makes the assembly of the outer shell and the base convenient and labor-saving.

[0022] In the seventh technical solution, the positioning block and the first positioning groove are inserted into each other so that the card connector corresponds and is inserted into the card groove, which can quickly connect the outer shell and the base and improve assembly efficiency.

[0023] In the eighth technical solution, the stop of the first stop and the stop of the second stop make the first operating member rotate between the first position and the second position. In the first position and the second position, either only the cold water inlet is connected to the water passage cavity, or only the hot water inlet is connected to the water passage cavity. Therefore, the user can adjust the water temperature by controlling the ratio of cold and hot water flow by simply relying on the position of the hand. This is quite convenient.

[0024] In the ninth technical solution, the water outlet device has a valve core as described in any one of the second to eighth technical solutions, and has the corresponding technical effect.

[0025] In the tenth technical solution, the second valve has at least two second water outlet connectors controlled by the switch valve core, which allows the water outlet device to connect multiple end water outlets as needed, expanding its functionality and facilitating operation. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a perspective view of the valve core in Example 1;

[0028] Figure 2 This is an exploded view of the valve core in Example 1;

[0029] Figure 3 This is a perspective view of the outer shell in Embodiment 1;

[0030] Figure 4 This is a top view of the outer casing in Embodiment 1;

[0031] Figure 5 This is a first-view perspective perspective view of the base in Embodiment 1;

[0032] Figure 6 This is a second-view perspective perspective view of the base in Embodiment 1;

[0033] Figure 7 This is a perspective view of the valve plate in Example 1;

[0034] Figure 8 This is a perspective view of the moving valve plate in Example 1;

[0035] Figure 9 This is a cross-sectional view of the moving valve plate in Example 1;

[0036] Figure 10 This is a cross-sectional view of the first operating component in Embodiment 1;

[0037] Figure 11 This is a perspective view of the second operating component in Embodiment 1;

[0038] Figure 12 This is a schematic diagram of the first state of the second operating component in Embodiment 1;

[0039] Figure 13 This is a schematic diagram of the second state of the second operating element in Embodiment 1;

[0040] Figure 14 This is a partial perspective view of the water outlet device in Example 2;

[0041] Figure 15 This is a partial longitudinal sectional view of the water outlet device in Embodiment 2;

[0042] Figure 16 This is a cross-sectional view of the water outlet device in Example 2.

[0043] Explanation of key figure labels:

[0044] First operating component 1, operating hole 11, mounting cavity 12, connecting part 13, second stop block 131, second insert block 132, third sealing groove 133; Second operating component 2, operating mating hole 21, fourth sealing groove 22; Outer shell 3, first shell part 31, first stop block 311, slot 312, first positioning groove 313, guide slope 314; Second shell part 32, moving valve plate 4, second slot 41, second positioning groove 42, water passage cavity 43, first cavity 431, second cavity 432, stop block 44; Fixed valve plate 5, first slot 51, allowing 52, slot 53, cold water inlet 53, hot water inlet 54, outlet 55; sealing ring 6; base 7, cold water inlet 71, hot water inlet 72, outlet 73, groove 74, positioning block 75, snap connector 76, first insert block 77, first sealing groove 78, second sealing groove 79; first valve 8, cold water inlet channel 81, cold water inlet connector 82, hot water inlet channel 83, hot water inlet connector 84, first outlet channel 85, first outlet connector 86, handwheel 87; second valve 9, button 91, switch valve core 92. Detailed Implementation

[0045] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are preferred embodiments of the present utility model and should not be considered as excluding other embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0046] Unless otherwise expressly defined, the use of terms such as "first," "second," or "third" in the claims, description, and drawings of this utility model is for distinguishing different objects and not for describing a specific order.

[0047] Unless otherwise expressly defined, in the claims, description, and accompanying drawings of this utility model, the use of directional terms such as "center," "lateral," "longitudinal," "horizontal," "vertical," "top," "bottom," "inner," "outer," "upper," "lower," "front," "rear," "left," "right," "clockwise," and "counterclockwise" to indicate orientation or positional relationships is based on the orientation and positional relationships shown in the accompanying drawings and is only for the convenience of describing the invention and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the specific scope of protection of the invention.

[0048] Unless otherwise expressly defined, the terms "fixed connection" or "fixed connection" used in the claims, description and drawings of this utility model shall be interpreted broadly to refer to any connection in which there is no displacement or relative rotation relationship between the two parties, including non-removable fixed connection, detachable fixed connection, integral connection and fixed connection through other devices or components.

[0049] In the claims, description and accompanying drawings of this utility model, the terms "comprising", "having", and variations thereof are used to mean "including but not limited to".

[0050] Example 1

[0051] See Figure 1 , 2 The figures show a perspective view and an exploded view of an embodiment of a valve core provided by this utility model. As shown, the valve core includes a housing, a fixed valve plate 5, a movable valve plate 4, a first operating member 1, and a second operating member 2; wherein the housing includes an outer shell 3 and a base 7.

[0052] like Figure 2-4As shown, the outer shell 3 includes a first shell portion 31 and a second shell portion 32 connected together. Both the first shell portion 31 and the second shell portion 32 are hollow cylindrical bodies with openings at both ends and have the same center line. The second shell portion 32 is located above the first shell portion 31, and the diameter of the second shell portion 32 is smaller than the diameter of the first shell portion 31. The lower end of the second shell portion 32 extends into the cavity of the first shell portion 31 (here, "above" and "below" refer to...). Figure 2 The outer shell 3 is positioned above and the base 7 is positioned below (the above and below positions are the same below). It forms an annular groove with the inner wall of the first shell portion 31. A first stop 311 extending along the side wall of the first shell portion 31 is provided on the lower inner wall of this annular groove. In this embodiment, there are two first stop blocks 311, distributed circumferentially along the annular groove. The side wall of the first shell portion 31 is provided with several through slots 312 circumferentially. In this embodiment, there are two slots 312, symmetrically positioned relative to the center line of the outer shell 3. A first positioning groove 313 opening downwards is provided at the lower edge of the side wall of the first shell portion 31. The first positioning groove 313 and the slots 312 are staggered circumferentially. In this embodiment, there are two first positioning grooves 313, one larger and one smaller, serving a foolproof function. In this embodiment, a guide slope 314 is provided at the lower end of the inner side wall of the first shell portion 31. This guide slope 314 extends downwards and slopes away from the center line of the outer shell.

[0053] See Figure 2 , Figure 5-6As shown in the figure, the base 7 is a cylindrical component. Near its radial edge, it has two arc-shaped water inlets, a cold water inlet 71 and a hot water inlet 72, both identical in shape and size. Near the center of the base 7, it has an outlet 73. The outlet 73, cold water inlet 71, and hot water inlet 72 are arranged in a triangular pattern. The outlet 73, cold water inlet 71, and hot water inlet 72 are connected to each other and around each other by a groove 74. This groove 74 is used to install the sealing ring 6 of the base 7, thus isolating the outlet 73, cold water inlet 71, and hot water inlet 72 from each other. On the outer edge of the base 7, there are two positioning blocks 75 corresponding to the first positioning grooves 313. In this embodiment, there are two positioning blocks 75, each corresponding in size to one of the two first positioning grooves 313. An annular connecting strip is provided circumferentially on the inner side of the positioning block 75. The annular connecting strip has a snap-fit ​​connector 76 corresponding to the snap-fit ​​groove 312. The snap-fit ​​connector 76 includes a post and a snap head. The post extends upward from the upper surface of the annular connecting strip, and the snap head is located at the end of the post and faces radially. The post can provide the elasticity required for the deformation of the snap-fit ​​connector 76. In this embodiment, the snap-fit ​​connector 76 is adapted to slide along the guide slope 314 to enter the snap-fit ​​groove 312. The annular connecting strip is also provided with a plurality of first inserts 77. In this embodiment, there are four first inserts 77, arranged in pairs, adjacent to the snap-fit ​​connector 76. The outer side wall of the base 7 is provided with an annular first sealing groove 78 for installing a sealing ring to seal and prevent leakage when connected with the outer shell 3. The lower end of the base 7 is provided with two connecting posts that extend downward to fix the valve core and valve body together. The lower end of the base 7 is also provided with two downward-extending cylindrical cavities that connect the cold water inlet 71 and the hot water inlet 72 to the external water passage respectively. The lower end of the cavity wall of the cylindrical cavity is provided with an annular second sealing groove 79 for installing a sealing ring to achieve sealing of the water passage when the valve core is connected to the external water passage.

[0054] The base 7 and the lower opening size of the outer shell 3 are adapted. By inserting the positioning block 75 into the first positioning groove 313, the snap connector 76 slides along the guide slope 314 into the snap groove 312 and engages with the snap groove 312, so that the base 7 and the outer shell 3 can be fixedly connected and a cavity is formed between them.

[0055] See Figure 2 , 7As shown in the figure, the fixed valve plate 5 is a cylindrical component with several recessed first slots 51 and relief grooves 52 extending through its lower wall along its outer side. The first slots 51 are adapted to be inserted into the first insert block 77, and the relief grooves 52 are adapted to be inserted into the locking connector 76 to engage with the locking groove 312. In this embodiment, four first slots 51 corresponding to the first insert block 77 and two relief grooves 52 corresponding to the locking connector 76 are provided. The fixed valve plate 5 has cold water inlets 53, hot water inlets 54 and water outlets 55 arranged in a triangular pattern, all of which extend through the fixed valve plate 5 in the vertical direction, and their shapes correspond to the cold water inlet 71, hot water inlet 72 and water outlet 73, respectively. By inserting the first insert 77 into the first slot 51, the fixed valve plate 5 and the base 7 can be connected to prevent rotation, thereby connecting the cold water inlet 53, the hot water inlet 54 and the water outlet 55 to the cold water inlet 71, the hot water inlet 72 and the water outlet 73 respectively.

[0056] See Figure 2 , 8 -9, as shown in the figure, the moving valve plate 4 is a cylindrical component. Several recessed second slots 41 and a second positioning groove 42 are provided circumferentially along its outer wall and penetrate its upper wall. In this embodiment, there are three second slots 41, and the second positioning groove 42 is located between two of the second slots 41. The moving valve plate 4 is provided with a water passage cavity 43, which includes a first cavity 431 and a second cavity 432 that are connected. The second cavity 432 is located in the middle of the moving valve plate 4 and penetrates the upper and lower walls of the moving valve plate 4. A stop block 44 perpendicular to its center line is provided at the lower end of the inner wall of the second cavity 432. The first cavity 431 penetrates the lower wall of the moving valve plate 4, and its cross-section is arc-shaped, with dimensions approximately equal to the dimensions of the cold water inlet 53 and the hot water inlet 54 of the fixed valve plate 5. The lower wall of the moving valve plate 4 is in contact with the upper wall of the fixed valve plate 5, and the second cavity 432 is always connected to the water outlet 55 of the fixed valve plate 5. When the moving valve plate 4 rotates, the position of the first chamber 431 changes accordingly. For example, when rotating counterclockwise, the first chamber 431 sequentially connects to the cold water inlet 53 alone, partially connects to the cold water inlet 53 and partially connects to the hot water inlet 54, connects to the hot water inlet 54 alone, and completely cuts off the connection with the cold water inlet 53 and the hot water inlet 54.

[0057] See Figure 2 , 10As shown in the figure, the first operating member 1 is adapted to pass through the outer casing 3 and extend outside the outer casing 3, and is used to switch the water flow of the valve core or adjust the water outlet temperature of the valve core. The first operating member 1 can rotate relative to the outer casing 3 about its own rotation axis. In this embodiment, the rotation axis coincides with the center line of the outer casing 3. The first operating member 1 includes three connected parts: upper, middle and lower, whose diameter increases from top to bottom, forming a stepped structure. The upper part is adapted to be fitted with a handle for easy operation of the first operating member 1. In this embodiment, the upper part is a square prism; the upper part is provided with an operating hole 11. The cavities of the middle and lower parts together form a mounting cavity 12, which communicates with the operating hole 11. The cross-sectional dimensions of the mounting cavity 12 are adapted to the cross-sectional dimensions of the second cavity 432. The cavity wall of the middle part of the mounting cavity 12 is provided with internal threads; the lower end of the outer side wall of the lower part extends radially outward to form a connecting part 13. When the first operating member 1 is inserted into the outer casing 3, its upper and middle parts extend out of the second shell portion 32 of the outer casing 3, and its lower part is accommodated in the cavity of the second shell portion 32. The connecting portion 13 extends into the cavity of the first shell portion 31 and abuts against the lower end face of the second shell portion 32. A second stop block 131 and several second insert blocks 132 are provided circumferentially on the outer side wall of the connecting portion 13. The second insert blocks 132 extend downward and are adapted to be inserted into the second slot 41 so that the first operating member 1 is connected to the moving valve plate 4 to prevent rotation. Thus, by rotating the first operating member 1, the moving valve plate 4 is controlled to rotate relative to the fixed valve plate 5. When the first operating member 1 is connected to the moving valve plate 4 to prevent rotation, the mounting cavity 12 is connected to the second cavity 432. In this embodiment, there are three second insert blocks 132 corresponding to the number of second slots 41. The second stop 131 protrudes radially outward and is adapted to be inserted into the second positioning groove 42 so that the first operating member 1 can be inserted into the moving valve plate 4. The second stop 131 is adapted to cooperate with the first stop 311 to stop the first operating member 1 so that the first operating member 1 can rotate between the first position and the second position. In the first position and the second position, either only the cold water inlet 53 is connected to the first cavity 431, or only the hot water inlet 54 is connected to the first cavity 431. In this embodiment, when the first operating member 1 rotates to the first position and the second position, the second stop 131 is respectively cooperated with the two first stop 311 stops. The lower wall of the connecting part 13 is provided with an annular third sealing groove 133 to install a sealing ring to achieve water circuit sealing when the first operating member 1 is connected to the moving valve plate 4.

[0058] See Figure 2 , 11As shown in the figure, the second operating component 2 is cylindrical, comprising two connected upper and lower parts. It is adapted to be installed in the mounting cavity 12 of the first operating component 1 along the direction of the rotation axis, for adjusting the water flow rate of the valve core. The upper side wall of the second operating component 2 is provided with an external thread, which is adapted to cooperate with the internal thread of the wall of the mounting cavity 12, so that the second operating component 2 and the first operating component 1 are screwed together to enter or exit the second cavity 432, thereby changing the communication area of ​​the first cavity 431 and the second cavity 432; wherein, the helical direction is parallel to or coincides with the rotation axis. In this embodiment, the helical direction coincides with the rotation axis. The upper end of the upper part of the second operating component 2 is provided with a circular groove, and the circular groove is provided with an operating mating hole 21 for cooperating with the tool to prevent rotation, so as to facilitate the operation of the second operating component 2; in this embodiment, the operating mating hole 21 is an internal hexagonal hole; the lower side wall of the second operating component 2 is provided with two annular fourth sealing grooves 22 for installing sealing rings, so that the second operating component 2 and the first operating component 1 are sealed together to prevent water leakage. In other embodiments, the second operating member 2 can slide and engage with the first operating member 1, and be driven by a stop structure or a ballpoint pen-style pressing structure. This is prior art in the field and will not be described in detail here.

[0059] During installation, the second operating component 2 is fitted with a sealing ring, then the first operating component 1 is screwed in, and the sealing ring is then installed on the first operating component 1. Next, the sealing ring 6 is installed on the base 7, and then the fixed valve plate 5 and the base 7 are inserted together. The movable valve plate 4 is then stacked on top of the fixed valve plate 5. Then, the first operating component 1 and the movable valve plate 4 are inserted together, and then the outer shell 3 is fitted onto the first operating component 1, so that the outer shell 3 is snapped and fixed to the base 7. Finally, the sealing ring is installed on the lower end of the base 7, forming a shape as shown in the image. Figure 1 The valve core mentioned above.

[0060] In use, rotating the first operating component 1 causes the moving valve plate 4 to rotate relative to the fixed valve plate 5, thereby controlling the ratio of hot and cold water inflow to adjust the outlet water temperature, or controlling the opening and closing of the inlet water path; rotating the second operating component 2 adjusts the outlet water flow rate. For details, see [link to relevant documentation]. Figure 12-13 Hold the handle (not shown in the figure) mounted on the upper part of the first operating member 1 with one hand, and insert the tool (in this embodiment, the tool is a screwdriver with an external hexagonal end) into the operating hole 11 with the other hand, so that the tool engages with the operating mating hole 21. Rotating the tool will cause the second operating member 2 to move spirally relative to the first operating member 1. The second operating member 2 enters or exits the second cavity 432 through the mounting cavity 12 through the spiral movement. By changing the size of the flow area connecting the first cavity 431 and the second cavity 432, the water flow rate of the second cavity 432 is changed, and ultimately the water flow rate of the outlet 73 is changed. When the tool is rotated clockwise, so that the second operating member 2 abuts against the upper surface of the stop block 44 of the second cavity 432, the flow area is the smallest and the water flow rate is also the smallest; when the tool is rotated counterclockwise, causing the second operating member 2 to rotate and exit the second cavity 432, the flow area is the largest and the water flow rate is also the largest.

[0061] Compared with the prior art, this embodiment has the following beneficial effects:

[0062] In this embodiment, the housing includes an outer shell 3 and a base 7. The outer shell 3 is provided with a slot 312 and a guide slope 314. The base 7 is provided with a snap-fit ​​connector 76. The snap-fit ​​connector 76 engages with the slot 312 to achieve a fixed connection between the outer shell 3 and the base 7. The guide slope 314 is suitable for the snap-fit ​​connector 76 to slide along it to enter the slot 312, making the connection between the outer shell 3 and the base 7 convenient and effortless.

[0063] In this embodiment, two positioning blocks 75 of different sizes are respectively inserted into two corresponding first positioning slots 313, which has a foolproof effect and improves the assembly efficiency of the base 7 and the outer shell 3.

[0064] In this embodiment, the first operating element 1 is anti-rotatingly connected to the moving valve plate 4, so that the moving valve plate 4 can be rotated by the first operating element 1; the moving valve plate 4 is fitted with the fixed valve plate 5, and the fixed valve plate 5 is anti-rotatingly connected to the base 7. This connection structure allows the fixed valve plate 5 and the first operating element 1 to cooperate together, restricting the axial movement of the moving valve plate 4 relative to the housing and avoiding water circuit sealing failure.

[0065] In this embodiment, by manipulating the first operating element 1 to drive the moving valve plate 4 to rotate relative to the fixed valve plate 5, the water flow area of ​​the cold water inlet 71 and the hot water inlet 72 connected to the first cavity 431 is changed, thereby changing the water inlet ratio of cold and hot water flowing into the first cavity 431 to achieve temperature regulation; or the connection state between the cold and hot water inlets and the first cavity 431 is adjusted to control the opening and closing of the water inlet path.

[0066] In this embodiment, the stop block 131 and the two first stop blocks 44 cooperate to allow the user to adjust the water temperature or turn the water on and off simply by feeling the position with their hand and controlling the ratio of hot and cold water flow, which is quite convenient.

[0067] In this embodiment, the operating hole 21 is engaged with the tool anti-rotation mechanism, which facilitates the manipulation of the second operating member 2 to make it move spirally relative to the first operating member 1.

[0068] In this embodiment, the second operating member 2 is screwed into or out of the second cavity 432 in conjunction with the first operating member 1, thereby changing the flow area from the first cavity 431 to the second cavity 432, thus changing the water flow rate and achieving flow rate regulation. The structure is relatively simple.

[0069] In this embodiment, the second operating member 2 is housed in the mounting cavity 12 of the first operating member 1 and is screwed into the first operating member 1, with its helical axis coinciding with the rotation axis. When operating the second operating member 2, a screwdriver is inserted into the mounting cavity 12 through the operating hole 11 and inserted into the operating mating hole 21 of the second operating member 2. Rotating the screwdriver causes the second operating member 2 to rotate relative to the first operating member 1 and move along the helical axis to enter or exit the second cavity 432. Compared with the valve core of the prior art, since the second operating member 2 is housed in the mounting cavity 12 and the water flow is adjusted by operating with a screwdriver, there is no need to set an additional handle. Only the first operating member 1 is exposed in appearance, which saves costs and makes the appearance simpler.

[0070] Example 2

[0071] See Figure 14-16 The figure shows an embodiment of a water outlet device provided by this utility model; as shown, the water outlet device includes a mounting box, a first valve 8, and a second valve 9; the first valve 8 and the second valve 9 are fixed to the mounting box by screws. The first valve 8 is equipped with the valve core described in Embodiment 1; the first valve 8 includes a handwheel 87, which is sleeved on the upper part of the first operating member 1 through the first through hole of the mounting box and covers the first through hole. The handwheel 87 is anti-rotatingly connected to the first operating member 1. The handwheel 87 is provided with a second through hole to connect to the operating hole 11, and a decorative cover is provided on the second through hole; the first valve 8 is provided with a cold water inlet channel 81, a hot water inlet channel 83, and a first water outlet channel 85; one end of the cold water inlet channel 81 is provided with a cold water inlet connector 82, and the other end is connected to a cold water inlet 71; one end of the hot water inlet channel 83 is provided with a hot water inlet connector 84, and the other end is connected to a hot water inlet 72; one end of the first water outlet channel 85 is connected to the water outlet 73, and the other end of the first water outlet channel 85 is provided with a first water outlet connector 86. The second valve 9 is provided with a second water outlet channel, which is provided with a water inlet connector and several second water outlet connectors. The second water outlet connectors are used to connect to the terminal water outlet appliance. The water inlet connector is adapted to be fixedly connected to the first water outlet connector 86 so that the first water outlet channel 85 is connected to the second water outlet channel. In this embodiment, the water inlet connector and the first water outlet connector 86 are connected via a threaded connector. The second valve 9 includes several switch valve cores 92, which are set corresponding to the second water outlet connectors to control the on / off water flow of the corresponding second water outlet connectors. Each switch valve core 92 is equipped with a corresponding button 91 for operating the switch valve core 92. In this embodiment, the second valve 9 is provided with three second water outlet connectors, three corresponding switch valve cores 92, and three buttons 91. The three second water outlet connectors are used to connect to the shower head, aerator, and hose, respectively.

[0072] In this embodiment, the water outlet device has the valve core described in Embodiment 1, which has the corresponding technical effect. Furthermore, since the second valve 9 is provided with multiple second water outlet connectors, its functionality is expanded, and the switch valve core 92 facilitates the control of water flow.

[0073] The foregoing description of the specifications and embodiments is intended to explain the scope of protection of this utility model, but does not constitute a limitation on the scope of protection of this utility model. Modifications, equivalent substitutions, or other improvements to the embodiments of this utility model or a portion thereof that can be obtained by those skilled in the art through logical analysis, reasoning, or limited experimentation, based on the teachings of this utility model or the foregoing embodiments, should all be included within the scope of protection of this utility model.

Claims

1. A valve core, characterized in that, It includes a body, a first operating member (1) and a second operating member (2); the first operating member (1) rotates relative to the body about a rotation axis to switch the water supply or adjust the outlet water temperature of the valve core; the second operating member (2) is disposed inside the first operating member (1) along the rotation axis and is adapted to move relative to the first operating member (1) in the direction of extending along the rotation axis under the action of external force to adjust the outlet water flow of the valve core.

2. The valve core according to claim 1, characterized in that, The main body is provided with a cold water inlet (71), a hot water inlet (72), an outlet (73), and a water passage cavity (43). The water passage cavity (43) includes a first cavity (431) and a second cavity (432) that are interconnected. The second cavity (432) is always connected to the outlet (73). When the first operating member (1) rotates relative to the main body, it changes the water passage area of ​​the cold water inlet (71) and the hot water inlet (72) connected to the first cavity (431).

3. A valve core according to claim 2, characterized in that, The first operating member (1) is provided with a mounting cavity (12) and an operating hole (11). The mounting cavity (12) is adapted to accommodate the second operating member (2) and communicate with the second cavity (432). The operating hole (11) communicates with the mounting cavity (12) and is adapted to allow a tool to be inserted to manipulate the second operating member (2), so that the second operating member (2) and the first operating member (1) are screwed together to enter or exit the second cavity (432), thereby changing the flow area from the first cavity (431) to the second cavity (432).

4. A valve core according to claim 2, characterized in that, The main body includes a housing, a moving valve plate (4), and a fixed valve plate (5); the housing is provided with a cold water inlet (71), a hot water inlet (72), and an outlet (73); the moving valve plate (4) is provided with a water passage chamber (43); the fixed valve plate (5) is provided with a cold water passage port (53), a hot water passage port (54), and an outlet water passage port (55); the cold water passage port (53) is connected to the cold water inlet (71), the hot water passage port (54) is connected to the hot water inlet (72), and the outlet water passage port (55) is connected to the second chamber (432) and the outlet (73); the first operating member (1) passes through the housing and is anti-rotatingly connected to the moving valve plate (4), the fixed valve plate (5) is anti-rotatingly connected to the housing and cooperates with the first operating member (1) to restrict the movement of the moving valve plate (4) in the axial direction of the housing.

5. A valve core according to claim 1, characterized in that, The second operating member (2) is provided with an operating mating hole (21), and the tool is adapted to engage with the operating mating hole (21) to drive the second operating member (2) and the first operating member (1) to engage in a helical connection.

6. A valve core according to claim 4, characterized in that, The housing includes an outer shell (3) and a base (7); the outer shell (3) is provided with a slot (312) and a guide ramp (314), and the base (7) is provided with a snap-fit ​​connector (76); the snap-fit ​​connector (76) is adapted to move relative to the guide ramp (314) to enter the slot (312) so that the outer shell (3) is snapped into the base (7).

7. A valve core according to claim 6, characterized in that, The outer shell (3) is provided with a first positioning groove (313), and the base (7) is provided with a positioning block (75). The positioning block (75) is adapted to be inserted into the first positioning groove (313) so that the snap-fit ​​connector (76) corresponds to and is inserted into the snap-fit ​​slot (312).

8. A valve core according to claim 6, characterized in that, The outer casing (3) is provided with a first stop (311), and the first operating member (1) is provided with a second stop (131). The first stop (311) and the second stop (131) cooperate to stop each other, so that the first operating member (1) can rotate relative to the body between a first position and a second position. In the first position, the water passage cavity (43) is only connected to one of the cold water inlet (53) and the hot water inlet (54). In the second position, the water passage cavity (43) is only connected to the other of the cold water inlet (53) and the hot water inlet (54).

9. A water outlet device, characterized in that, It includes a first valve (8) and a valve core as described in any one of claims 2-8, the valve core being installed in the first valve (8), the first valve (8) having a cold water inlet channel (81), a hot water inlet channel (83) and a first outlet channel (85) respectively communicating with the cold water inlet (71), the hot water inlet (72) and the outlet (73), the first outlet channel (85) having a first outlet connector (86).

10. A water outlet device according to claim 9, characterized in that, It also includes a second valve (9), which has at least two second water outlets connected to the first water outlet (86); the second valve (9) includes a switch valve core (92) corresponding to each second water outlet to control the on / off water flow of each second water outlet respectively.

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