Valve element with non-return function and water outlet device

Abstract

The utility model provides a valve core with a non-return function and a water outlet device, the valve core comprises two water inlet channels, and non-return pieces are arranged in the water inlet channels; the non-return piece is arranged in the water inlet channel, a water inlet flow channel can be formed between the non-return piece and the inner wall of the water inlet channel under the action of water pressure when water flows forwards, and the non-return piece can be tightly attached to the inner wall of the water inlet channel under the action of the water pressure when the water flows backwards, so that the water inlet channel is closed. When water flows in the forward direction, a water inlet flow channel is formed between the water inlet channel and the inner wall of the water inlet channel under the action of water pressure, and normal water outlet is achieved. And when the water flow reversely flows, the non-return piece can be tightly attached to the inner wall of the water inlet channel under the action of water pressure to achieve sealing, so that the water inlet channel is closed to achieve the non-return effect, the non-return effect can be achieved only through one part, the structure is simple, and the cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of faucet valve cores, and in particular to a valve core with a non-return function and a water outlet device. Background Art

[0002] The thermostatic valve core usually adjusts the temperature of the mixed water by adjusting the size of the cold water inlet and the hot water inlet connected to the mixing chamber. In real life, since the water pressure in the cold water tank and the hot water tank is not always balanced, water backflow will inevitably occur when there is no water in use. When the pressure in the cold water tank or the hot water tank fluctuates, the cold water or hot water in the thermostatic valve core mixing chamber will flow back at the water inlet, causing the water to flow from the cold water tank to the hot water tank, or backflow in the opposite direction, causing the temperature of the cold water or hot water in the water tank to change. Regardless of how the backflow occurs, the temperature of the hot water in the hot water tank will drop and then need to be heated again, resulting in more energy consumption.

[0003] Although there are valve cores with a check function in the existing technology, the valve core is usually provided with a separate check valve or a one-way valve in the water inlet channel. The check valve or the one-way valve has a relatively complex structure, many parts, and a relatively high cost. Utility Model Content

[0004] In view of this, the purpose of the present invention is to provide a valve core and a water outlet device with a non-return function to solve the above problems.

[0005] The utility model adopts the following scheme:

[0006] The present application provides a valve core with a non-return function, comprising two water inlet channels, in which a non-return member is arranged; when the water flows in a forward direction, the non-return member can form a water inlet flow channel between the valve core and the inner wall of the water inlet channel under the action of water pressure, and when the water flows in a reverse direction, the non-return member can fit tightly with the inner wall of the water inlet channel under the action of water pressure, thereby closing the water inlet channel.

[0007] Furthermore, the anti-return member is bowl-shaped, and its opening is arranged toward the water outlet of the water inlet channel.

[0008] Furthermore, the anti-return component is made of silicone or rubber.

[0009] Furthermore, a fixing part is also included; it includes an annular outer wall sealedly connected to the inner wall of the water inlet channel, an installation part arranged at the axis center for installing the anti-return part, and multiple first support parts connected between the annular outer wall and the installation part; a water flow channel is formed between the first support parts.

[0010] Furthermore, a mounting hole is provided on the axis of the mounting portion; a connecting portion is provided on the axis of the anti-return member, and a clamping groove adapted to the mounting hole is provided on the connecting portion.

[0011] Furthermore, the first supporting portion is placed upstream of the anti-return member, and its supporting surface is bowl-shaped and matched with the anti-return member.

[0012] Furthermore, a second supporting portion is provided on the water inlet channel, which is provided downstream of the anti-return component and is used to support the anti-return component.

[0013] Furthermore, the fixing member is arranged at the water inlet section of the water inlet channel; a retaining wall is arranged on the water inlet end surface of the water inlet channel, and a sealing groove is formed between the annular outer wall and the retaining wall.

[0014] Furthermore, the water inlet channel is arranged on the base.

[0015] A water outlet device comprises a valve core capable of controlling water temperature, wherein the valve core is the valve core with a non-return function.

[0016] By adopting the above technical solution, the utility model can achieve the following technical effects:

[0017] The utility model provides a valve core with a non-return function. By arranging a non-return component in the water inlet channel, when the water flows in the forward direction, a water inlet flow channel can be formed between the valve core and the inner wall of the water inlet channel under the action of water pressure, thereby achieving normal water discharge; and when the water flows in the reverse direction, the non-return component can fit tightly with the inner wall of the water inlet channel under the action of water pressure, thereby closing the water inlet channel and achieving the non-return effect. The non-return effect can be achieved with only one component, and its structure is simple and the cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show 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 creative work.

[0019] Figure 1 This is a schematic diagram of the cross-sectional structure of a valve core with a non-return function in an embodiment of the utility model. Figure 1 ;

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of a valve core with a non-return function in an embodiment of the utility model. Figure 2 ;

[0021] Figure 3This is a schematic diagram of the base structure of a valve core with a non-return function according to an embodiment of the utility model;

[0022] Figure 4 This is a schematic structural diagram of a fixing member of a valve core with a non-return function according to an embodiment of the utility model;

[0023] Figure 5 This is a schematic structural diagram of a non-return component of a valve core with a non-return function according to an embodiment of the utility model;

[0024] Figure 6 This is a schematic cross-sectional view of a valve core with a check function according to another embodiment of the present invention;

[0025] Figure 7 This is a schematic diagram of the bottom structure of a valve core with a non-return function in another embodiment of the present invention;

[0026] Icons: water inlet channel 1, check member 2, base 3, fixing member 4, annular outer wall 5, mounting portion 6, first support portion 7, connecting portion 8, snap-in groove 9, mounting hole 10, mounting groove 11, positioning step surface 12, retaining wall 13, sealing groove 14, sealing ring 15, movable valve disc 16, static valve disc 17, operating lever 18, water flow channel 19, second support portion 20. DETAILED DESCRIPTION

[0027] 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 in 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 utility model for which protection is sought, but merely represents the selected embodiments of the present invention. Based on the embodiments in 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.

[0028] Example

[0029] Combine Figures 1 to 7As shown, this embodiment provides a valve core with a non-return function, including two water inlet channels 1, and a non-return member 2 is arranged in the water inlet channel 1; the non-return member 2 can form a water inlet flow channel between it and the inner wall of the water inlet channel 1 under the action of water pressure when the water flows in the forward direction, and can fit tightly with the inner wall of the water inlet channel 1 under the action of water pressure when the water flows in the reverse direction, thereby closing the water inlet channel 1.

[0030] By arranging a non-return component 2 in the water inlet channel 1, when the water flows in the forward direction, a water inlet flow channel can be formed between the water and the inner wall of the water inlet channel 1 under the action of water pressure, thereby achieving normal water discharge; and when the water flows in the reverse direction, the non-return component 2 can fit tightly with the inner wall of the water inlet channel 1 under the action of water pressure, thereby closing the water inlet channel 1 and achieving the non-return effect. The non-return effect can be achieved with only one component, and its structure is simple and the cost is low.

[0031] Specifically, if Figures 1 to 3 As shown, in this embodiment, the water inlet channel is provided on the base 3. The anti-return member 2 is made of silicone or rubber and is bowl-shaped, with its opening facing the water outlet of the water inlet channel 1. When the water flows in the forward direction, the bowl-shaped anti-return member 2 contracts toward the axis under the action of water pressure, forming a water inlet channel between the anti-return member 2 and the inner wall of the water inlet channel 1, thereby achieving normal water discharge. When the water flows in the reverse direction, the anti-return member 2 can closely fit with the inner wall of the water inlet channel 1 under the action of water pressure to achieve side sealing, thereby closing the water inlet channel 1 and achieving the anti-return effect.

[0032] In this embodiment, a fixing member 4 is also included; Figure 4 As shown, it includes an annular outer wall 5 sealed with the inner wall of the water inlet channel 1, a mounting portion 6 provided at the axis for mounting the anti-return member 2, and a plurality of first support portions 7 connected between the annular outer wall 5 and the mounting portion 6; a water flow channel 19 is formed between the first support portions 7; and a mounting hole 10 is provided at the axis of the mounting portion 6. Figure 5 As shown, a connecting portion 8 is provided on the axis of the anti-return member 2, and a snap-in groove 9 adapted to the mounting hole 10 is provided on the connecting portion 8. The first supporting portion 7 is in the shape of a strip, which connects the annular outer wall 5 and the mounting portion 6. The supporting surface of the first supporting portion 7 is in the shape of a bowl adapted to the anti-return member 2, so as to better support the anti-return member 2. The inner diameter of the annular outer wall 5 is consistent with the inner diameter of the water inlet channel 1, and after the fixing member 4 and the anti-return member 2 are installed in the water inlet channel 1, the upper end surface of the anti-return member 2 is higher than the upper end surface of the annular outer wall 5, so that the anti-return member 2 can abut against the inner wall of the water inlet channel 1.

[0033] In this embodiment, the check member 2 is first mounted on the fixing member 4. The fixing member 4 is then mounted in the mounting groove 11 on the water inlet section of the water inlet channel 1, with one end face of the annular outer wall 5 abutting against the positioning step surface 12 of the mounting groove 11. Connection is achieved by ultrasonic welding or structural adhesive. A retaining wall 13 is provided around the water inlet end face of the water inlet channel 1. One end of the annular outer wall 5 protrudes outward, with the end face flush with the retaining wall 13. A sealing groove 14 is formed between the retaining wall 13 for accommodating a sealing ring 15.

[0034] Of course, the valve core with the non-return function includes components such as a movable valve plate 16, a static valve plate 17 and an operating rod 18, which are all existing technologies and will not be elaborated in detail here.

[0035] Preferably, if Figure 6 and Figure 7 As shown, the water inlet channel 1 is further provided with a second support portion 20, which is disposed downstream of the anti-return member and is used to support the anti-return member. Specifically, the second support portion 20 is columnar and extends from the upper end surface of the water inlet channel 1 of the base 3, abutting against the center of the bowl-shaped opening of the anti-return member 2 to support the anti-return member 2, thereby preventing the anti-return member 2 from being dislodged from the fixing member 4 by high water pressure, or even being damaged by high water pressure.

[0036] It should be noted that the upstream or downstream mentioned above refers to the upstream or downstream when the water flows forward in the water inlet channel 1, that is, the water flows into the water inlet channel 1 from the outside and then flows out from the water outlet channel.

[0037] The present utility model also provides a water outlet device, including a valve core that can control the water temperature. The valve core is the valve core with a non-return function. By adopting this valve core, the cold water or hot water in the mixing chamber of the temperature control valve core can be prevented from flowing back at the water inlet, so that the water flows from the cold water tank to the hot water tank, or flows back in the opposite direction, causing the temperature of the cold water or hot water in the water tank to change, and then the temperature of the hot water in the hot water tank drops, requiring repeated or continuous heating, thereby generating more energy consumption.

[0038] The above are only preferred implementations 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 fall within the protection scope of the present invention.

[0039] 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, and do not indicate or imply 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 a limitation on the present invention.

[0040] 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 specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0041] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, 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 this utility model based on specific circumstances.

[0042] 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. Moreover, 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.

Claims

1. A valve core with a check function, comprising two water inlet channels, characterized in that: A non-return member is provided in the water inlet channel; the non-return member is bowl-shaped, and its opening is arranged toward the water outlet of the water inlet channel; the non-return member can form a water inlet flow channel between the non-return member and the inner wall of the water inlet channel under the action of water pressure when the water flows in the forward direction, and can fit tightly with the inner wall of the water inlet channel under the action of water pressure when the water flows in the reverse direction, thereby closing the water inlet channel.

2. The valve core with a check function according to claim 1, characterized in that: The anti-return component is made of silicone or rubber.

3. The valve core with a check function according to claim 1, characterized in that: It also includes a fixing part; the fixing part includes an annular outer wall sealedly connected to the inner wall of the water inlet channel, an installation part arranged at the axis center for installing the anti-return part, and multiple first support parts connected between the annular outer wall and the installation part; a water flow channel is formed between the first support parts.

4. The valve core with a check function according to claim 3, characterized in that: The axis of the mounting portion is provided with a mounting hole; the axis of the anti-return member is provided with a connecting portion, and the connecting portion is provided with a clamping groove adapted to the mounting hole.

5. The valve core with a check function according to claim 4, characterized in that: The first supporting portion is placed upstream of the anti-return member, and the supporting surface thereof is in a bowl shape that is compatible with the anti-return member.

6. The valve core with a check function according to claim 5, characterized in that: The water inlet channel is further provided with a second supporting portion, which is arranged downstream of the anti-return component and is used to support the anti-return component.

7. The valve core with a check function according to claim 3, characterized in that: The fixing member is arranged at the water inlet section of the water inlet channel; a retaining wall is arranged on the water inlet end surface of the water inlet channel, and a sealing groove is formed between the annular outer wall and the retaining wall.

8. The valve core with a non-return function according to any one of claims 1 to 7, characterized in that: The water inlet channel is arranged on the base.

9. A water outlet device, comprising a valve core capable of controlling water temperature, characterized in that: The valve core is a valve core with a non-return function as described in any one of claims 1 to 8.

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