Key water stop structure and shower head

Abstract

The utility model provides a key water stop structure and a shower head. The key water stop structure comprises an installation cavity, a piston and a pressing assembly. A water inlet and a water outlet are formed in the periphery of the mounting cavity, and a water outlet plane is formed in the periphery of the end, facing the interior of the mounting cavity, of the water outlet. And the piston is arranged in the movable mounting cavity and is provided with a water stopping plane parallel to the water outlet plane. The pressing assembly is connected with the piston and drives the piston to move in the installation cavity in a reciprocating mode, the water stopping plane is attached to the water outlet plane to block the water outlet, or the water stopping plane and the water outlet plane are staggered, and the water outlet is reserved. The mode that the water stopping plane is attached to the water outlet plane is adopted, the problems that in a traditional cambered surface attaching mode, size errors exist, and the sealing degree is insufficient can be solved, in the water stopping state, water power of the water inlet can push the water stopping plane to further press the water outlet plane, and therefore the high sealing effect is achieved, and the service life of the water outlet plane is prolonged. A sealing ring does not need to be additionally arranged, and the pressing assembly is more convenient to press.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen and bathroom, in particular to a key water-stopping structure and a shower head. Background Art

[0002] The water-stop function is common in shower heads. When in use, by pressing the water-stop button, the water flow can be cut off at the shower head to achieve the water-stop effect. At present, the water-stop structure corresponding to the water-stop function mostly adopts a cylindrical mounting cavity and a cylindrical piston to cooperate. Through the back-and-forth movement of the piston, the water inlet and outlet holes on both sides of the mounting cavity are connected or blocked to achieve the water-stop and water-passing effects. The above-mentioned water-stop effect has the advantage of simple structure, so it is widely used. However, the above-mentioned water-stop structure has the problem of large pressing resistance and poor user experience. The reason is that in order to achieve the water-stop effect, the dimensions of the cylindrical mounting cavity and the cylindrical piston must be consistent in area. However, processing errors are unavoidable. Therefore, in order to improve the sealing effect, a sealing ring is often set on the periphery of the piston. The sealing effect between the piston and the mounting cavity is improved by squeezing the sealing ring. However, it brings about the problem of large resistance to the reciprocating movement of the piston, resulting in a poor pressing experience of the water-stop key. For this reason, the utility model provides a more lightweight button water-stop structure, which can solve the above technical problems. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a button water-stopping structure which is more convenient to use.

[0004] In a first aspect, a key water-stopping structure is provided, comprising a mounting cavity, a piston and a pressing assembly, wherein:

[0005] A water inlet and a water outlet are arranged on the periphery of the installation cavity, and a horizontal plane is formed on the periphery of one end of the water outlet facing the installation cavity.

[0006] The piston can reciprocate along the axial direction in the installation cavity, and the cross-sections of the installation cavity and the piston are consistent. The piston is provided with a stop surface, the water inlet and the water outlet are respectively located on the two sides of the stop surface, and the stop surface is parallel to the outlet surface.

[0007] The pressing assembly connection drives the piston to reciprocate in the installation cavity: the stop horizontal surface fits the outlet horizontal surface and blocks the water outlet, the water inlet and the water outlet are separated, or the stop horizontal surface is staggered with the outlet horizontal surface and makes way for the water outlet, and the water inlet and the water outlet are connected.

[0008] The water stop structure provided by the utility model adopts a water outlet with a water outlet plane, and a piston with a water stop plane. In the water stop state, through the way that the water stop plane and the water outlet plane are attached, that is, in the way of plane attachment, the problems of dimensional error and insufficient sealing degree existing in the traditional arc surface attachment way can be avoided. And since the water inlet and the water outlet are respectively located on both sides of the water stop plane, in the water stop state, the hydraulic force of the water inlet can push the water stop plane to further press the water outlet plane, so that without additionally arranging a sealing ring under the condition of having a high sealing effect, the blocking feeling brought when the piston moves can be greatly reduced, and the pressing assembly is made more convenient to use.

[0009] Preferably, the water inlet and the water outlet are arranged oppositely, so that the application direction of the hydraulic force of the water inlet on the piston can be perpendicular to the water stop plane, improving the water stop effect.

[0010] Preferably, when the piston blocks the water outlet, it also blocks the water inlet, improving the hydraulic pushing effect.

[0011] Preferably, a water passing groove is arranged on the water stop plane and / or the water outlet plane. When the water stop plane is attached to the water outlet plane, the water passing groove forms a water passing gap, and the water passing gap communicates the installation cavity and the water outlet, so that in the water stop state, the shower head can maintain a dripping state.

[0012] Preferably, the water stop plane and / or the water outlet plane adopt materials such as metal, ceramic, engineering plastic or rubber, which can improve the attachment effect between the water stop plane and the water outlet plane.

[0013] Preferably, a contact piece is arranged on the water stop plane and / or the water outlet plane, and the contact piece adopts materials such as metal, ceramic, engineering plastic or rubber.

[0014] Preferably, the pressing assembly adopts a ballpoint pen progressive switching mechanism, and the switching operation of water stop is simple.

[0015] Preferably, the pressing assembly includes a guide sleeve, a pressing rod, a top rod, a spring and a button. The guide sleeve is fixedly arranged at the opening at the end of the installation cavity, and a switching groove with an opening facing the inside of the installation cavity is arranged in the middle. A through hole is arranged in the middle of the switching groove, and a plurality of axial guide bars are arranged on the periphery. A bevel gear is arranged at the bottom of the guide bar. The pressing rod is telescopically installed in the through hole, and a rotation limiting structure is arranged between the pressing rod and the guide sleeve. An upper ratchet tooth distributed annularly is arranged at the bottom of the pressing rod. The top rod is movably installed in the switching groove, a guide opening for the guide bar to pass through is arranged on the periphery, and a lower ratchet tooth distributed annularly is arranged at the top. The spring is compressively arranged in the installation cavity and pushes the piston to closely adhere to the top rod. The button is arranged at the head of the pressing rod extending out.

[0016] Preferably, a plug is provided at the opening of the end of the installation cavity. The plug is fixedly installed by threads and presses the guide sleeve against the opening at the end of the installation cavity.

[0017] In a second aspect, a shower head is provided, which adopts the key water stop structure described in the first aspect.

[0018] As can be seen from the above description of the present invention, the present invention has the following beneficial effects:

[0019] The water stop structure provided by the present invention adopts a water outlet with a water outlet plane and a piston with a water stop plane. In the water stop state, by the way that the water stop plane and the water outlet plane are attached, that is, in a plane attachment manner, the problems of dimensional error and insufficient sealing degree in the traditional arc surface attachment manner can be avoided;

[0020] Since the water inlet and the water outlet are respectively located on two sides of the water stop plane, in the water stop state, the hydraulic force of the water inlet can further push the water stop plane to tightly press the water outlet plane, so that without additionally arranging a sealing ring under the condition of having a high sealing effect, the blocking feeling brought by the movement of the piston can be greatly reduced, and the pressing assembly is more convenient to use;

[0021] The water inlet and the water outlet are arranged oppositely, so that the application direction of the hydraulic force of the water inlet on the piston can be perpendicular to the water stop plane, improving the water stop effect;

[0022] The water stop plane and / or the water outlet plane are provided with water overflow grooves, and a dripping effect can be formed in the water stop state;

[0023] The water stop plane and / or the water outlet plane are made of metal, ceramic, engineering plastic or rubber materials, which can improve the attachment effect between the water stop plane and the water outlet plane and are more wear-resistant. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings described herein are used to provide a further understanding of the present invention, and constitute a part of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention.

[0025] Among them:

[0026] Figure 1 is an explosion of a key water stop structure Figure 1 ;

[0027] Figure 2 is an explosion of a key water stop structure Figure 2 ;

[0028] Figure 3 is an explosion of a key water stop structure Figure 3;

[0029] Figure 4 is a front-side view of a shower head;

[0030] Figure 5 is a cross-section of a button water-stop structure Figure 1 ; (at the A-A position of Figure 4 , water-stop state)

[0031] Figure 6 is a cross-section of a button water-stop structure Figure 2 ; (water flowing state)

[0032] Figures 1 to 6 The markings in

[0033] are respectively: mounting cavity 1, water inlet 11, water outlet 12, water outlet plane 13,

[0034] piston 2, water-stop plane 21,

[0035] pressing assembly 3, guide sleeve 31, pressing rod 32, ejector rod 33, spring 34, button 35, plug 36. Specific embodiments

[0036] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0037] Please refer to Figures 1 to 6 , in a first aspect, a button water-stop structure is provided, including a mounting cavity 1, a piston 2 and a pressing assembly 3, wherein,

[0038] The circumferential part of the mounting cavity 1 is provided with a water inlet 11 and a water outlet 12, and a water outlet plane 13 is formed at the circumferential part of the end of the water outlet 12 facing the inside of the mounting cavity 1.

[0039] The piston 2 can reciprocate axially in the mounting cavity 1, and the cross-sections of the mounting cavity 1 and the piston 2 are the same. The piston 2 is provided with a water-stop plane 21, the water inlet 11 and the water outlet 12 are respectively located on both sides of the water-stop plane 21, and the water-stop plane 21 is parallel to the water outlet plane 13.

[0040] In one embodiment, the water inlet 11 and the water outlet 12 are oppositely arranged, so that the direction of the hydraulic force applied by the water inlet 11 to the piston 2 can be perpendicular to the water-stop plane 21, improving the water-stop effect. In another embodiment, when the piston 2 blocks the water outlet 12, it also blocks the water inlet 11, improving the hydraulic pushing effect.

[0041] Based on the above embodiments, in one embodiment, the water stop surface 21 and / or the water outlet surface 13 are provided with a water flow groove. When the water stop surface 21 is in contact with the water outlet surface 13, the water flow groove forms a water flow gap. The water flow gap connects the installation cavity 1 and the water outlet 12, so that in the water stop state, the shower head can maintain a dripping state.

[0042] In addition, in order to improve the water-stopping effect and the wear resistance of the plane, the stop surface 21 and / or the exit surface 13 are made of metal, ceramic, engineering plastic or rubber, which can improve the fitting effect between the stop surface 21 and the exit surface 13. Alternatively, the stop surface 21 and / or the exit surface 13 are provided with a contact sheet, and the contact sheet is made of metal, ceramic, engineering plastic or rubber.

[0043] The pressing assembly 3 is connected to drive the piston 2 to reciprocate in the installation cavity 1: the stop water surface 21 fits the outlet water surface 13 and blocks the water outlet 12, and the water inlet 11 and the water outlet 12 are separated, or the stop water surface 21 is staggered with the outlet water surface 13 and makes way for the water outlet 12, and the water inlet 11 and the water outlet 12 are connected.

[0044] In one embodiment, the pressing component 3 adopts a ballpoint pen progressive switching mechanism, and the water-stop switching operation is simple.

[0045] The pressing assembly 3 includes a guide sleeve 31, a pressing rod 32, a push rod 33, a spring 34 and a button 35. The guide sleeve 31 is fixedly arranged at the opening at the end of the installation cavity 1, and a switching groove with an opening toward the inside of the installation cavity 1 is provided in the middle. A through hole is provided in the middle of the switching groove, and a plurality of guide strips along the axial direction are provided on the periphery. The bottom of the guide strip is provided with helical teeth. The pressing rod 32 is telescopically installed in the through hole, and a rotation limiting structure is provided between the pressing rod 32 and the guide sleeve 31. The bottom of the pressing rod 32 is provided with an annularly distributed upper ratchet. The push rod 33 is movably installed in the switching groove, and a guide opening for the guide strip to pass through is provided on the periphery, and a lower ratchet distributed in an annular manner is provided on the top. The spring 34 is compressed and arranged in the installation cavity 1, and pushes the piston 2 to be close to the push rod 33. The button 35 is arranged at the head extending from the pressing rod 32.

[0046] On the basis of the above embodiment, a plug 36 is provided at the opening at the end of the installation cavity 1 . The plug 36 is fixedly installed by threads and presses the guide sleeve 31 at the opening at the end of the installation cavity 1 .

[0047] In another embodiment, a shower head is provided, which adopts the key water-stopping structure described in the above embodiment.

[0048] The water stop structure provided by the present utility model adopts a water outlet 12 with a water outlet plane 13 and a piston 2 with a water stop plane 21. In the water stop state, by means of the fitting of the water stop plane 21 and the water outlet plane 13, that is, in a plane fitting manner, the problems of dimensional error and insufficient sealing degree existing in the traditional arc surface fitting manner can be avoided. Since the water inlet 11 and the water outlet 12 are respectively located on both sides of the water stop plane 21, in the water stop state, the hydraulic force of the water inlet 11 can push the water stop plane 21 to further press the water outlet plane 13, so that without additionally installing a sealing ring, a relatively high sealing effect can be achieved, and thus the blocking feeling caused by the movement of the piston 2 can be greatly reduced, making the pressing assembly 3 more convenient to use.

[0049] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model 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 thus should not be construed as a limitation to the present utility model.

[0050] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0051] In the present utility model, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected with", "fixed" and other terms should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection or communication with each other; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0052] In the present utility model, unless otherwise clearly defined and limited, the first feature being “on” or “under” the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being “above”, “over” and “on top of” the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being “under”, “beneath” and “underneath” the second feature may mean that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is less than that of the second feature.

[0053] In the present utility model, the terms “an embodiment”, “some embodiments”, “exemplifications”, “specific exemplifications” or “some exemplifications” etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or exemplification are included in at least one embodiment or exemplification of the present utility model. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or exemplification. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or exemplifications. In addition, without contradiction, those skilled in the art may combine and combine the different embodiments or exemplifications described in this specification and the features of different embodiments or exemplifications.

[0054] Although the above embodiments have been shown and described, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Any changes, modifications, substitutions and variations made by those of ordinary skill in the art to the above embodiments are within the protection scope of the present utility model.

Claims

1. A key water stop structure, characterized in that, It includes a mounting chamber, a piston and a pressing assembly; A water inlet and a water outlet are provided on the periphery of the installation cavity, and a horizontal surface is formed on the periphery of one end of the water outlet facing the installation cavity; The piston can reciprocate along the axial direction in the installation cavity, and the cross-sections of the installation cavity and the piston are consistent; the piston is provided with a stop surface, the water inlet and the water outlet are respectively located on the two sides of the stop surface, and the stop surface is parallel to the outlet surface; The pressing assembly connection drives the piston to reciprocate in the installation cavity: the stop horizontal surface fits the outlet horizontal surface and blocks the water outlet, the water inlet and the water outlet are separated, or the stop horizontal surface is staggered with the outlet horizontal surface and makes way for the water outlet, and the water inlet and the water outlet are connected.

2. The key water stop structure according to claim 1, characterized in that The water inlet and the water outlet are arranged opposite to each other.

3. A key water stop structure according to claim 1 or 2, characterized in that, When the piston is in a state of blocking the water outlet, it also blocks the water inlet.

4. A key water stop structure according to claim 1, characterized in that, The stop water surface and / or the outlet water surface is provided with a water flow groove. When the stop water surface is in contact with the outlet water surface, the water flow groove forms a water flow gap, and the water flow gap communicates the installation cavity and the water outlet.

5. The key water stop structure according to claim 1, characterized in that, The water stop surface and / or water outlet surface are made of metal, ceramic, engineering plastic or rubber.

6. The key water stop structure according to claim 1, characterized in that, The stop level surface and / or the exit level surface are provided with contact pieces, and the contact pieces are made of metal, ceramic, engineering plastic or rubber.

7. The key water stop structure according to claim 1, characterized in that, The pressing component adopts a ballpoint pen progressive switching mechanism.

8. The key water stop structure according to claim 7, characterized in that, The pressing assembly includes a guide sleeve, a pressing rod, a push rod, a spring and a button; the guide sleeve is fixedly arranged at the opening at the end of the installation cavity, and a switching groove with an opening facing the inside of the installation cavity is provided in the middle part, a through hole is provided in the middle part of the switching groove, and a plurality of guide strips along the axial direction are provided on the periphery, and the bottom of the guide strip is provided with helical teeth; the pressing rod is telescopically installed in the through hole, and a rotation limiting structure is provided between the pressing rod and the guide sleeve, and an annularly distributed upper ratchet is provided at the bottom of the pressing rod; the push rod is movably installed in the switching groove, and a guide opening for the guide strip to pass through is provided on the periphery, and an annularly distributed lower ratchet is provided on the top; the spring is compressed and arranged in the installation cavity, and pushes the piston to fit tightly against the push rod; the button is arranged on the head extending from the pressing rod.

9. The key water stop structure according to claim 8, characterized in that The opening at the end of the installation cavity is provided with a plug, and the plug is fixedly installed by threads, and the guide sleeve is pressed on the opening at the end of the installation cavity.

10. A shower head, characterized in that, A key water-stopping structure as described in any one of claims 1 to 9 is adopted.

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