Reset valve core and water outlet device

Abstract

The application provides a reset valve core, relates to the technical field of bathroom products, and comprises a main body, a transmission shaft, a gear position assembly and a reset assembly. The main body is provided with a water inlet and a water distribution cavity in communication. The water distribution cavity is internally provided with a moving vane and a fixed vane. The moving vane rotates relative to the fixed vane under the driving of the transmission shaft. The gear position assembly comprises a positioning disc connected with the transmission shaft, a water sealing element for cutting off the water distribution cavity, and an abutting piece rotating with the positioning disc. The main body is provided with a positioning portion. When water flow is opened, the positioning disc moves upward so that the abutting piece abuts against the positioning portion upward. The reset assembly comprises a first return spring and a second return spring. When water flow is closed, the second return spring drives the positioning disc to move downward, and the first return spring drives the transmission shaft to return. The reset assembly further comprises an elastic element capable of applying force to the periphery of the water sealing element so that the periphery of the water sealing element is at least partially deviated in a direction away from the positioning disc, thereby ensuring the automatic reset of the transmission shaft. The application further provides a water outlet device.

Description

Technical Field

[0001] The present invention relates to the technical field of bathroom products, and in particular to a reset valve core and a water outlet device. Background Art

[0002] The patent owner is Kaiping Hansen Sanitary Ware Co., Ltd., and the application number is CN202020180644.4. It discloses an axially driven water diversion return valve core, including a main shell, an upper cover, a base and a transmission shaft; a water inlet is provided on the side wall of the main shell; the upper cover is installed at the upper end of the main shell and can rotate relative to the main shell around the central axis of the main shell; the base is fixedly installed at the lower end of the main shell, and the base is provided with a first water outlet, a second water outlet and a third water outlet; a moving piece is provided in the inner cavity of the main shell above the base, and a connecting groove and a water inlet hole are provided on the moving piece; one end of the transmission shaft passes through the upper cover into the interior of the main shell and is inserted into the connecting groove; a positioning plate and a water sealing part fixedly sleeved on the transmission shaft are provided in the inner cavity of the main shell above the moving piece, and a first abutting platform is provided at one end of the inner cavity of the main shell near the upper end, and a second abutting platform is provided at the other end. A plurality of positioning holes are provided on a supporting platform at equal intervals around the central axis of the main shell; the positioning plate is located between the water sealing member and the first supporting platform and is provided with a plurality of axial holes corresponding to the positioning holes, each axial hole is installed with a spring and a compression spring, and under the action of the compression spring, the upper end of the spring is inserted into the corresponding positioning hole; when liquid enters the inner cavity of the main shell from the water inlet, the liquid pushes the positioning plate and the water sealing member to move upward so that the spring maintains an upward supporting trend, and the liquid acts on the movable plate to maintain a downward movement trend, and the water inlet is connected to the first water outlet correspondingly; the transmission shaft is rotated clockwise or counterclockwise to make the positioning plate rotate accordingly, and the spring overcomes the action of the compression spring and its upper end disengages from the corresponding positioning hole and presses against the first supporting platform until it is inserted into the next positioning hole, and the water inlet is connected to the second water outlet or the third water outlet correspondingly.

[0003] During use, it was found that after the water flow was turned off, the drive shaft was often difficult to reset. Summary of the Invention

[0004] The inventors found in the process of implementing the present invention that the existing reset valve core is difficult to reset due to the following reasons:

[0005] The return spring of the existing valve core is sleeved on the transmission shaft. When returning to its original position, it drives the positioning plate to press the water sealing part downward. The friction between the water sealing periphery of the water sealing part and the shell is relatively large. Therefore, the water sealing part forms a state in which the periphery is stationary and the middle part is elastically deformed, resulting in the positioning plate being unable to move downward as a whole and the elastic column being unable to separate from the positioning hole, which in turn causes the transmission shaft to be unable to reset.

[0006] In view of this, the present invention discloses a reset valve core and a water outlet device, aiming to improve the problem that the existing reset valve core cannot be reset.

[0007] The present invention adopts the following scheme:

[0008] A reset valve core comprises a main body, a transmission shaft, a shift assembly and a reset assembly. The main body is provided with a water inlet and a water diversion chamber which are connected to each other. The water diversion chamber contains a moving plate and a fixed plate. The moving plate rotates relative to the fixed plate under the drive of the transmission shaft.

[0009] The shift assembly is arranged above the moving plate, and includes a positioning plate connected to the transmission shaft, a water sealing member for isolating the water diversion chamber, and an abutment member that rotates with the positioning plate. A positioning portion is provided on the main body. When the water flow is turned on, the positioning plate moves upward so that the abutment member presses against the positioning portion upward.

[0010] The reset assembly includes a first return spring and a second return spring. When the water flow is closed, the second return spring drives the positioning plate to move downward, and the first return spring drives the transmission shaft to return.

[0011] It also includes an elastic member, which can apply force to the periphery of the water sealing member when the water flow is closed so that the periphery of the water sealing member deviates at least partially in a direction away from the positioning plate.

[0012] As a further improvement, an assembly hole is recessed at the end of the positioning plate facing the water sealing member, and the elastic member is accommodated in the assembly hole.

[0013] As a further improvement, a plurality of elastic members are arranged in an array along the center of the positioning plate.

[0014] As a further improvement, the positioning plate is provided with a mounting hole therethrough, and the abutment member is arranged in the mounting hole.

[0015] As a further improvement, the number of the elastic members is the same as the number of the abutting members, so that the force on the periphery of the water sealing member is balanced.

[0016] As a further improvement, the transmission shaft is provided with a limiting portion, the water sealing component is sleeved on the transmission shaft and is limited by the limiting portion.

[0017] As a further improvement, a compression spring is provided between the limiting portion and the movable plate to make the movable plate fit with the stator plate.

[0018] As a further improvement, a gasket for supporting the elastic member and the abutment member is provided between the positioning plate and the water sealing member.

[0019] As a further improvement, the gasket is annular.

[0020] A water outlet device is also provided, comprising a water outlet body and a valve core adapted to the water outlet body, wherein the valve core is the reset valve core as described above.

[0021] By adopting the above technical solution, the present invention can achieve the following technical effects:

[0022] 1. After the water flow is shut off, the second return spring drives the positioning disc downward, while the elastic member simultaneously drives the periphery of the water sealing member downward away from the positioning disc. It's easy to understand that the provision of the elastic member increases the pressure on the periphery of the water sealing member, allowing it to overcome frictional resistance and produce downward elastic deformation, creating space for the overall downward movement of the positioning disc, thereby reducing the abutment force of the abutment member on the positioning portion and ensuring the self-resetting function of the valve core.

[0023] 2. The water sealing member is limited by the limiting portion to keep the height of the water sealing member relative to the moving piece unchanged, thereby avoiding wear of the water sealing member due to the up and down movement of the water sealing member, resulting in a decrease in sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 It is a structural diagram of one embodiment of the present invention;

[0026] Figure 2 yes Figure 1 A cross-sectional view along one of the sections (water flow is turned on);

[0027] Figure 3 yes Figure 2 A magnified view of middle A;

[0028] Figure 4 yes Figure 2 Schematic diagram of the structure when the positioning plate moves downward;

[0029] Figure 5 yes Figure 1 Cross-sectional view along another section (water flow is closed at this time)

[0030] Figure 6 yes Figure 5 Enlarged view of middle B;

[0031] Figure 7 It is a structural schematic diagram of a positioning plate according to one embodiment of the present invention;

[0032] Figure 8 yes Figure 7 Schematic diagram of the structure from another perspective;

[0033] Figure 9 It is a structural schematic diagram of a transmission shaft according to one embodiment of the present invention;

[0034] Figure 10 It is an exploded view of one embodiment of the present invention.

[0035] icon:

[0036] 1-shell; 11-water diversion chamber; 12-water inlet; 13-positioning part;

[0037] 2-base; 21-water outlet;

[0038] 3-fixed plate; 31-water outlet;

[0039] 4-moving piece; 41-water inlet;

[0040] 5- transmission shaft; 51- limiting part;

[0041] 61-positioning plate; 611-assembly hole; 612-mounting hole; 62-water sealing member; 63-abutting member; 631-abutting spring; 632-elastic column; 64-first latch; 65-elastic member; 66-gasket;

[0042] 71 - cover; 72 - first return spring; 73 - second return spring; 74 - second latch; 75 - blocking piece;

[0043] 8-Compression spring. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the invention for which protection is sought, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0045] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0046] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0047] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0048] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0049] Example

[0050] Combine Figures 1 to 10This embodiment provides a reset valve core, including a main body, a transmission shaft 5, a shift assembly, and a reset assembly. The main body includes a housing 1 and a base 2. A water diversion chamber 11 is formed between the housing 1 and the base 2. A water inlet 12 connected to the water diversion chamber 11 is provided on the side of the housing 1. The base 2 is provided with at least two water outlets 21. The water diversion chamber 11 contains a movable plate 4 and a fixed plate 3. The water outlet holes 31 of the fixed plate 3 are connected to the water outlets 21 on the base 2 in a one-to-one correspondence. The movable plate 4 is provided with a water inlet hole 41 and an assembly groove. The water inlet hole 41 is connected to the water diversion chamber 11. The tail end of the transmission shaft 5 is inserted into the assembly groove so that the movable plate 4 rotates accordingly to select one of the water outlet holes 31 for connection. Water flows into the water diversion chamber 11 from the water inlet 12, then connects to the water outlet hole 31 through the water inlet hole 41, and finally flows out from the water outlet 21 connected to the water outlet hole 31.

[0051] The shift assembly includes a positioning plate 61, a water sealing member 62, and an abutment member 63. The positioning plate 61 is connected to the drive shaft 5 via a first latch 64 for interlocking operation with the drive shaft 5. The abutment member 63 rotates with the positioning plate 61. The water sealing member 62 is used to isolate the water diversion chamber 11. A positioning portion 13 is provided on the housing 1 corresponding to the water outlet 31. When the water sealing member 62 is subjected to hydraulic pressure, the positioning plate 61 moves upward, causing the abutment member 63 to press upward against the positioning portion 13 on the housing 1. The sealing cross-section of the water sealing member 62 can be V-shaped, with its opening facing the water diversion chamber 11.

[0052] The reset assembly includes a cover 71, a first return spring 72, and a second return spring 73. The cover 71 is connected to the transmission drawer through a second latch 74, so that the cover 71 and the transmission shaft 5 are configured in a linkage manner. The first return spring 72 is preferably a torsion spring, which is sleeved on the housing 1, and the pin of the torsion spring is clamped at the opening of the cover 71 to drive the cover 71 to rotate and return. The second return spring 73 is sleeved on the transmission shaft 5 and abuts between the housing 1 and the baffle 75 to drive the positioning plate 61 to move downward when the water flow is closed. An elastic member 65 is abutted between the positioning plate 61 and the water sealing member 62. The elastic member 65 can apply force to the periphery of the water sealing member 62 to overcome the friction resistance between the periphery of the water sealing member 62 and the housing 1, so that the periphery of the water sealing member 62 deviates at least partially in the direction away from the positioning plate 61, and the corresponding positioning plate 61 can move downward as a whole.

[0053] When the water flow is turned on, the water flow in the water diversion chamber 11 generates upward pressure on the water sealing member 62, pushing the positioning plate 61 upward, causing the abutment member 63 to abut the positioning portion 13. At this time, due to the large abutting force of the abutment member 63 on the positioning portion 13, the first return spring 72 cannot drive the cover body 71 to automatically return the transmission shaft 5. After the water flow is turned off, the second return spring 73 drives the positioning plate 61 downward, and at the same time, the elastic member 65 drives the peripheral edge of the water sealing member 62 to elastically deform downward. It is easy to understand that the provision of the elastic member 65 can increase the pressure on the water sealing member 62, allowing the peripheral edge of the water sealing member 62 to overcome frictional resistance and deviate away from the positioning plate 61, ensuring the overall downward movement of the positioning plate, thereby reducing the abutting force of the abutment member on the positioning portion 13 and ensuring the self-resetting function of the valve core.

[0054] In one embodiment, the end of the positioning plate 61 facing the water sealing member 62 is recessed with an assembly hole 611, and an elastic member 65 (preferably a spring) is accommodated in the assembly hole 611. And a plurality of elastic members 65 are arranged along the central array of the positioning plate 61, for example, three, four, five, etc., without specific limitation. The positioning plate 61 is provided with a mounting hole 612 through which the abutment member 63 is arranged. The abutment member 63 includes an abutment spring 631 and an elastic column 632. The mounting hole 612 is provided through which the elastic force of the abutment member 63 on the water sealing member 62 is increased, thereby increasing the driving force on the periphery of the water sealing member 62. Preferably, the number of elastic members 65 is the same as the number of abutment members 63, so that the periphery of the water sealing member 62 is subjected to balanced force.

[0055] Furthermore, a gasket 66 for supporting the elastic member 65 and the abutment 63 is provided between the positioning plate 61 and the water sealing member 62. The gasket 66 is annular and is sleeved on the transmission shaft 5. It is preferably a stainless steel sheet, so that the elastic member 65 and the abutment 63 can abut on the gasket 66, that is, the elastic member 65 and the abutment 63 can both apply elastic force to the gasket 66, thereby increasing the pushing force on the water sealing member 62, so that the periphery of the water sealing member 62 can produce elastic deformation when the positioning plate 61 moves downward, providing space for the abutment 63 to move out of the positioning portion 13.

[0056] In a preferred embodiment, the transmission shaft 5 is provided with a stopper 51, and the water sealing member 62 is sleeved on the transmission shaft 5 and restrained by the stopper 51. When the positioning plate 61 moves downward, the water sealing member 62 elastically deforms under the restraining action of the stopper 51. Furthermore, in this embodiment, the stopper 51 restrains the water sealing member 62, maintaining a constant height relative to the rotor 4. This prevents wear on the water sealing member 62 due to its upward and downward movement, which could lead to a decrease in sealing performance.

[0057] Preferably, a compression spring 8 is provided between the limiting portion 51 and the movable plate 4 to make the movable plate 4 fit with the stator 3, thereby ensuring that the movable plate 4 and the stator 3 fit and seal, and preventing the movable plate 4 and the stator 3 from loosening and causing the valve core to fail.

[0058] Another embodiment provides a water outlet device, comprising a water outlet body and a valve core adapted for the water outlet body, wherein the valve core is a reset valve core as described in any of the above embodiments. For example, the water outlet body is a faucet having three water outlet channels therein, and the base 2 of the valve core is provided with three water outlets 21, each corresponding to the three water outlet channels. The first water outlet channel is connected to a shower head, the second water outlet channel is connected to a top spray, and the third water outlet channel is connected to a bottom spout. The initial position of the valve core is such that the water inlet hole 41 on the movable plate 4 is connected to the first water outlet channel. When the water flow is turned on, the shower head is used by default, and the top spray or bottom spout can be switched to water flow by rotating the transmission shaft 5. After the water flow is turned off, the valve core automatically resets to the initial position, thereby ensuring that the shower head is used each time the faucet is turned on, without the need for switching.

[0059] The above are only preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention.

Claims

1. A reset valve core, comprising a main body, a transmission shaft, a shift assembly, and a reset assembly. The main body is provided with a water inlet and a water diversion chamber in communication. The water diversion chamber houses a movable plate and a fixed plate. The movable plate rotates relative to the fixed plate under the drive shaft. The shift assembly is arranged above the moving plate, and includes a positioning plate connected to the transmission shaft, a water sealing member for isolating the water diversion chamber, and an abutment member that rotates with the positioning plate. A positioning portion is provided on the main body. When the water flow is turned on, the positioning plate moves upward so that the abutment member presses against the positioning portion upward. The reset assembly includes a first return spring and a second return spring. When the water flow is closed, the second return spring drives the positioning plate to move downward, while the first return spring drives the transmission shaft to return. It is characterized in that: It also includes an elastic member, which can apply force to the periphery of the water sealing member when the water flow is closed so that the periphery of the water sealing member deviates at least partially in the direction away from the positioning plate; the positioning plate is provided with a recessed assembly hole at the end facing the water sealing member, and the elastic member is accommodated in the assembly hole; the number of the elastic members configured is the same as the number of the abutment members, so that the periphery of the water sealing member is subjected to balanced force.

2. The reset valve core according to claim 1, characterized in that: A plurality of elastic members are arranged in an array along the center of the positioning plate.

3. The reset valve core according to claim 1, characterized in that: The positioning plate is provided with a mounting hole therethrough, and the abutment member is arranged in the mounting hole.

4. The reset valve core according to claim 1, characterized in that: The transmission shaft is provided with a limiting portion, and the water sealing component is sleeved on the transmission shaft and is limited by the limiting portion.

5. The reset valve core according to claim 4, characterized in that: A compression spring is provided between the limiting portion and the movable plate to make the movable plate fit the stator plate.

6. The reset valve core according to any one of claims 1 to 5, characterized in that: A gasket for supporting the elastic member and the abutting member is provided between the positioning plate and the water sealing member.

7. The reset valve core according to claim 6, characterized in that: The gasket is annular.

8. A water outlet device, characterized in that: It comprises a water outlet body and a valve core adapted to the water outlet body, wherein the valve core is the reset valve core according to any one of claims 1 to 7.

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