Self-resetting structure, flow change-over switch and water outlet device

Abstract

The utility model provides a self-resetting structure, flow change-over switch and water outlet device, including mounting cavity, change-over lever, seal ring and elastic piece, wherein the seal ring is sleeved on the outer circle of the choke plug of change-over lever, and the outer circle of seal ring is equipped with annular skirt edge, the skirt edge has elasticity and will bend when being extruded, and the elastic piece is fixed in the mounting cavity. And meanwhile, the bent part can also be attached to and extrude the surface to form surface contact type sealing. The sealing ring with the skirt edge is adopted, when the state is switched and the sealing ring is close to the conical opening, the sealing ring can be deformed into a conical state through pushing of the conical opening and is tightly attached to the conical opening, so that a surface contact type sealing structure is formed between the sealing ring and the conical opening, the sealing performance is high, in addition, the sealing ring is prevented from being extruded into an oval shape to achieve sealing, and the sealing effect is good. Therefore, the friction force between the sealing ring or the switching rod and the conical opening can be greatly reduced, and the resetting action is smooth.

Description

TECHNICAL FIELD

[0001] The utility model relates to kitchen and bath technical field especially a self-resetting structure, flow switching switch and water outlet. BACKGROUND

[0002] Self-resetting switch structure is widely used in water outlet, generally including switching rod and elastic member installed in installation cavity, the end of switching rod is equipped with the plug with O type ring, through pressing, the plug can compress the elastic member and block the stepped channel of installation cavity end, when closing water, the plug resets under the action of elastic member. The existing self-reseting structure has the following problems: 1, the plug adopts O type ring, and the O type ring is deformed by extrusion between the opening of stepped channel, and then the sealing property is formed, this kind of sealing structure requires that the depth of plug entering stepped channel is a little big, can let O type ring deform fully, however, when closing water, if the elastic force of elastic member is insufficient or the friction of O type ring and stepped channel support is too big, will lead to reset failure;2, when water pressure is small, switching failure is prone to occur;3, stepped channel must be provided with pressure relief hole or drainage channel, otherwise, when the plug blocks stepped channel, gas will appear in stepped channel, causes the poor sealing property of blocking, and then leads to switching failure or early reset. CONTENT OF UTILITY MODEL

[0003] The utility model discloses a self-resetting structure with good sealing effect and smooth automatic reset action to solve the above technical problems.

[0004] In the first aspect, a self-resetting structure is provided, including installation cavity, switching rod, sealing ring and elastic member, wherein,

[0005] One end of the installation cavity is provided with a mounting port, a first water inlet is arranged in the middle, the other end forms a first inner cavity inside, and a first conical port is arranged towards the mounting port.

[0006] The switching rod is telescopically installed in the installation cavity, and one end provided with a plug is installed in the installation cavity, and the other end extends out of the mounting port and forms a pressing end for users to press.

[0007] The sealing ring is sleeved on the outer ring of the plug, and the outer ring of the sealing ring is provided with an annular skirt, the skirt has elasticity and will be bent when extruded, and the bent part will also adhere to the surface extruded and form a face contact type sealing.

[0008] The elastic member is pre-tightened and installed between the switching rod and the installation cavity, and provides elastic force for the plug to move towards the mounting port through the tendency of restoring deformation.

[0009] The switch rod comprises a first state and a second state: in the first state, the plug is away from the first conical port under the elastic force of the elastic member. The switch rod is switched from the first state to the second state by being pressed, at which time, the plug overcomes the elastic force of the elastic member and blocks the first conical port, while the skirt is bent into a conical shape under the thrust of the first conical port and is in close contact with the conical surface of the first conical port, thereby closing the first conical port. If the first water inlet is in the water passing state, the axial thrust force formed by the water pressure on the switch rod and the sealing ring is balanced with the elastic force, thereby effectively maintaining the second state. In addition, the water pressure also provides a radial force on the skirt formed into a conical shape, so that the skirt is in closer contact with the first conical port, and in turn, the sealing effect of the plug on the first conical port is better. When the water is cut off, the water force is removed, and the switch rod returns to the first state by the elastic force, at which time, the first conical port is opened.

[0010] Preferably, to improve the smoothness of automatically returning to the first state when the water is cut off, the outer diameter of the plug and the main body part of the sealing ring is equal to the diameter of the first inner cavity, which can reduce the friction between the switch rod and the mounting cavity during the recovery process. In addition, when switched to the second state, the plug and the main body part of the sealing ring pass through the first conical port and partially enter the first inner cavity in the second state, so that the smaller diameter port in the first conical port can be bent at the root of the skirt, allowing the skirt to have more contact area with the first conical port, thereby forming a better sealing effect.

[0011] Preferably, to improve the installation stability of the sealing ring, the outer ring of the plug is provided with an annular groove, and the sealing ring is sleeved in the annular groove.

[0012] Preferably, the first inner cavity has only the first conical port as the communication hole with the outside, without the need to additionally open a pressure relief hole, which is easy to form. When switched to the second state, as the plug gradually blocks the first conical port, the pressure inside the first inner cavity is too large, and the air or water inside can be discharged to the outside of the first conical port by opening the skirt, thereby achieving the pressure relief effect.

[0013] Preferably, the elastic member is a spring.

[0014] Preferably, the spring is compressed and installed between the end of the plug and the end of the mounting cavity, which is easy to assemble and has a simple and easy-to-form assembly structure.

[0015] Preferably, to improve the stability of the spring in use, the end of the plug is provided with a receiving groove, and one end of the spring is inserted into the receiving groove. The end of the first inner cavity is provided with a protruding column, and the other end of the spring is sleeved outside the protruding column.

[0016] In the second aspect, the flow switching switch is provided with the self-resetting structure in the first aspect.

[0017] Preferably, the first water inlet is provided with a throttling plate, which can effectively reduce the water inflow of the first water inlet, so that the water outflow of the water outlet meets the international water outflow standard.

[0018] In the third aspect, the water outlet is provided with the self-resetting structure in the first aspect or the flow switching switch in the second aspect.

[0019] Preferably, the water outlet is provided with the flow switching switch, the first water outlet switching switch and the second water outlet switching switch in sequence, and has rich water outflow modes, specifically, the water outlet switches the water outflow through the flow switching switch, switches the spray gun water or the shower water through the first water outlet switching switch, and switches the bubble water or the ordinary shower water through the second water outlet switching switch.

[0020] From the above description of the utility model, the utility model has the following beneficial effects:

[0021] When the switching state is close to the conical port, the sealing ring with the skirt can be deformed into a conical state by the conical port and tightly adhere to the conical port, so that a surface contact type sealing structure is formed between the sealing ring and the conical port, the sealing property is high, the current water outflow state can be effectively maintained, in addition, the sealing ring is not pressed into an elliptical shape to realize sealing, so that the friction between the sealing ring or the switching rod and the conical port can be greatly reduced, and the resetting action of the switching rod is very smooth when water is cut off.

[0022] Under the action of water force, the skirt can be more closely attached to the conical port, so that the sealing effect of the conical port is better in the water passing state, and the current water outflow state is more beneficial to be maintained.

[0023] The first inner cavity is only provided with the first conical port, and does not need to be additionally provided with a pressure relief hole, so that the first inner cavity is easy to be formed.

[0024] The two water inlets and the two conical ports arranged in the mounting cavity can realize the flow switching function and the function of automatically restoring the smaller water outflow state. BRIEF DESCRIPTION OF DRAWINGS

[0025] The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:

[0026] Wherein:

[0027] Figure 1 Is the shaft side view of self-resetting structure and flow switching switch Figure 1 ;

[0028] Figure 2 Is the explosion of self-resetting structure and flow switching switch Figure 1 ;

[0029] Figure 3 Is the explosion of self-resetting structure and flow switching switch Figure 2 ;

[0030] Figure 4 Is the explosion of self-resetting structure and flow switching switch Figure 3 ;

[0031] Figure 5 Is the first state diagram of self-resetting structure and flow switching switch Figure 1 ;

[0032] Figure 6 Is the first state diagram of self-resetting structure and flow switching switch Figure 2 ;

[0033] Figure 7 Is the second state diagram of self-resetting structure and flow switching switch Figure 1 ;

[0034] Figure 8 Is the second state diagram of self-resetting structure and flow switching switch Figure 2

[0035] Figure 9 Is the shaft side view of a water outlet device;

[0036] Figure 10 Is the front view of a water outlet device;

[0037] Figure 11 Is the sectional view of a water outlet device;

[0038] Figure 12 Is the sectional view of a water outlet device; Figure 7 Is the sectional view of a water outlet device;

[0039] Figures 1 to 12The identities in the figure are as follows: mounting cavity 1, mounting port 11, first water inlet 12, first inner cavity 13, first tapered port 14, second water inlet 15, water outlet 16, second tapered port 17, throttle plate 18, switching rod 2, plug 21, sealing ring 3, skirt 31, elastic member 4, flow switching switch 5, first water outlet switching switch 6, and second water outlet switching switch 7. DETAILED DESCRIPTION

[0040] In order to make the technical problems, technical solutions and beneficial effects of the utility model clearer and more understandable, the utility model will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and not to limit the utility model.

[0041] Please refer to Figures 1 to 9 A self-resetting structure comprises a mounting cavity 1, a switching rod 2, a sealing ring 3, and an elastic member 4, wherein

[0042] The mounting cavity 1 is provided with a mounting port 11 at one end, a first water inlet 12 at the middle, and a first inner cavity 13 formed at the other end, and is provided with a first tapered port 14 facing the mounting port 11.

[0043] The switching rod 2 is telescopically installed in the mounting cavity 1, and one end provided with a plug 21 is installed in the mounting cavity 1, and the other end extends out of the mounting port 11 and forms a pressing end for a user to press, and a sealing structure is arranged between the pressing end and the mounting port 11 to ensure the sealing effect, and a Y-shaped sealing ring 3 is preferably installed.

[0044] The sealing ring 3 is sleeved on the outer circle of the plug 21, and preferably, to improve the installation stability of the sealing ring 3, the outer circle of the plug 21 is provided with an annular groove, and the sealing ring 3 is sleeved in the annular groove. The outer circle of the sealing ring 3 is provided with an annular skirt 31, the skirt 31 has elasticity and will be bent when being pressed, and the bent part will also adhere to the surface being pressed and form a face contact type sealing.

[0045] The elastic member 4 is pre-tightened and installed between the switching rod 2 and the mounting cavity 1, and provides the plug 21 with a spring force for moving towards the mounting port 11 through the tendency of restoring deformation. Preferably, the elastic member 4 is a spring, which is compressed and installed between the end of the plug 21 and the end of the mounting cavity 1, easy to assemble, and the assembly structure is simple and easy to form. Further, to improve the stability of the spring during use, the end of the plug 21 is provided with a receiving groove, and one end of the spring is inserted into the receiving groove. The end of the first inner cavity 13 is provided with a protruding column, and the other end of the spring is sleeved outside the protruding column.

[0046] The switching rod 2 comprises a first state and a second state:

[0047] In the first state, the plug 21 is away from the first tapered port 14 under the elastic force of the elastic member 4.

[0048] The switching rod 2 is switched from the first state to the second state by being pressed, at this time, the plug 21 overcomes the elastic force of the elastic member 4 and blocks the first tapered port 14, while the skirt 31 is bent into a tapered shape under the pushing action of the first tapered port 14 and fits the tapered surface of the first tapered port 14, thereby closing the first tapered port 14. If it is in the water inlet state of the first water inlet 12, the water pressure balances the axial pushing force and the elastic force formed by the switching rod 2 and the sealing ring 3, thereby effectively maintaining the second state, in addition, the water pressure also provides a radial force to the skirt 31 formed in a tapered shape, so that the skirt 31 fits the first tapered port 14 more tightly, and in turn the sealing effect of the plug 21 on the first tapered port 14 is also better, and when the water is off, the water force is removed, the switching rod 2 restores to the first state by the elastic force, at this time, the first tapered port 14 is opened.

[0049] In an embodiment, in order to improve the fluency of automatically restoring the first state when the water is off, the outer diameter of the plug 21 and the main part of the sealing ring 3 is equal to the diameter of the first inner cavity 13, which can reduce the friction between the switching rod 2 and the mounting cavity 1 during the recovery process, in addition, when switched to the second state, the plug 21 and the main part of the sealing ring 3 pass through the first tapered port 14 and partially enter the first inner cavity 13 in the second state, so that the smaller diameter of the first tapered port 14 can be bent at the root of the skirt 31, so that the skirt 31 and the first tapered port 14 have more contact area, thereby forming a better sealing effect. Please refer to Figure 12 In the second state, the water forms a pushing force F1 to the plug and a pushing force F2 to the skirt 31 of the sealing ring 3, under the action of the pushing force F2, the skirt 31 will further fit the tapered surface of the first tapered port 14, at this time, the following effects will occur, when the water pressure is small or changes suddenly, the spring 4 has a tendency to push the plug 21 out, at this time, the static friction is formed between the skirt 31 and the tapered surface, which helps to maintain the state of the plug 21, thereby reducing the influence of the decrease or sudden change of water pressure and maintaining the current gear, and when the water is off, the tightness between the skirt 31 and the tapered surface is reduced, and in turn the friction is also reduced, and compared with the friction formed by the traditional sealing ring being extruded into an elliptical shape (which does not change even if the water force is removed), it can be or slightly, thereby improving the fluency of the reset of the switching rod 2.

[0050] On the basis of the above-mentioned embodiments, in an embodiment, the first inner cavity 13 communicates with the external hole only through the first tapered port 14, without the need to additionally open a pressure relief hole, and is easy to form. When switched to the second state, when the plug 21 gradually blocks the first tapered port 14, because the first inner cavity 13 forms a sealed cavity, the pressure inside is too large, and the air or water inside can be discharged to the outside of the first tapered port 14 through the top opening skirt 31, thereby achieving a pressure relief effect.

[0051] Please refer to Figures 1 to 9 In an embodiment, a flow switching switch 5 is also provided, which adopts the self-resetting structure described in the above-mentioned embodiments. The peripheral part of the mounting cavity 1 of the self-resetting structure is further provided with a second water inlet 15 and a water outlet 16. The second water inlet 15 is located between the mounting port 11 and the first water inlet 12, and the inner ring of the mounting cavity 1 is further provided with a second tapered port 17 between the first water inlet 12 and the second water inlet 15. The profile of the second tapered port 17 is consistent with that of the first tapered port 14, and is opposite to the first tapered port 14. The water outlet 16 is arranged between the first tapered port 14 and the second tapered port 17.

[0052] In the first state, the water outlet 16 communicates with the first water inlet 12. Preferably, a throttling piece 18 is mounted in the first water inlet 12, which can effectively reduce the water inflow of the first water inlet 12, so that the water inflow of the water outlet 12 in the first water inlet 12 is more in line with international water standards.

[0053] In the second state, the water outlet 16 simultaneously communicates with the first water inlet 12 and the second water inlet 15, so as to form a larger water outlet.

[0054] Therefore, the flow switching switch 5 provided in the embodiment can adjust the flow size by pressing the switching rod 2.

[0055] Please refer to Figures 1 to 11 In an embodiment, a water outlet device is also provided, which adopts the self-resetting structure or the flow switching switch 5 described in the above-mentioned embodiments.

[0056] In a specific embodiment, the water outlet device is sequentially provided with a flow switching switch 5, a first water outlet switching switch 6, and a second water outlet switching switch 7, and has rich water outlet modes. Specifically, the water outlet device switches the water inflow through the flow switching switch 5, switches the water gun or the shower through the first water outlet switching switch 6, and switches the bubble water or the ordinary shower through the second water outlet switching switch 7.

[0057] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0058] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0059] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or in communication with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication or interaction relationship of two elements, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0060] In the utility model, unless otherwise specifically defined and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0061] In the present application, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms is not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, the skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0062] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and cannot be understood as limiting the present application, and the changes, modifications, replacements and modifications of the above embodiments made by the person skilled in the art are within the protection scope of the present application.

Claims

1. A self-resetting structure, characterized by, The installation cavity, the switching rod, the sealing ring and the elastic member are included; The installation cavity is provided with an installation opening at one end, a first water inlet at the middle part, and a first inner cavity formed at the other end and provided with a first tapered opening facing the installation opening; The switching rod is provided with a plug end installed in the installation cavity, and the other end is a pressing end extending out of the installation opening; The sealing ring is sleeved on the outer ring of the plug, and the outer ring of the sealing ring is provided with an annular skirt; The elastic member is pre-tightened and installed between the switching rod and the installation cavity, and provides the plug with elastic force for moving towards the installation opening; The switching rod includes a first state and a second state; in the first state, the plug moves away from the first tapered opening under the action of the elastic force; the switching rod is switched from the first state to the second state by pressing; the plug overcomes the elastic force and blocks the first tapered opening; the skirt is changed into a tapered shape and fits the tapered surface of the first tapered opening; when water flows through the first water inlet, the axial thrust of the water on the switching rod and the sealing ring is balanced with the elastic force; when the water is cut off, the switching rod returns to the first state by the elastic force.

2. A self-righting structure according to claim 1, wherein, The outer diameter of the plug and the main part of the sealing ring is equal to the diameter of the first inner cavity, and the plug and the main part of the sealing ring pass through the first tapered opening and partially enter the first inner cavity in the second state.

3. A self-righting structure according to claim 1, wherein, The outer ring of the plug is provided with an annular groove, and the sealing ring is sleeved in the annular groove.

4. A self-righting structure according to claim 1, wherein, The first inner cavity is only connected with the first tapered opening, and the first inner cavity forms a sealed cavity in the second state.

5. A self-righting structure according to claim 1, wherein, The elastic member is a spring, which is compressed and installed between the end of the plug and the end of the installation cavity.

6. A self-righting structure according to claim 5, wherein, The end of the plug is provided with a receiving groove, one end of the spring is inserted into the receiving groove, and the other end of the spring is sleeved outside the convex column.

7. A flow switch, characterized in that The self-resetting structure of any one of claims 1 to 6 is adopted; the peripheral part of the installation cavity of the self-resetting structure is further provided with a second water inlet and a water outlet, the second water inlet is located between the installation opening and the first water inlet, the inner ring of the installation cavity is further provided with a second tapered opening between the first water inlet and the second water inlet, the contour of the second tapered opening is consistent with and opposite to that of the first tapered opening, and the water outlet is arranged between the first tapered opening and the second tapered opening; in the first state, the water outlet is in communication with the first water inlet, and in the second state, the water outlet is in communication with the first water inlet and the second water inlet at the same time.

8. A flow switch according to claim 7, wherein, A throttling plate is installed in the first water inlet.

9. A water dispenser, characterized by The self-resetting structure of any one of claims 1 to 6 is adopted, or the flow switching switch of claim 7 or 8 is adopted.

10. A water dispenser as claimed in claim 9, wherein The water outlet device is provided with a flow switching switch, a first water outlet switching switch and a second water outlet switching switch in sequence, the water outlet device switches the water outlet flow through the flow switching switch, switches the spray gun water or the shower water through the first water outlet switching switch, and the shower water switches the bubble water or the ordinary shower water through the second water outlet switching switch.

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