Water diversion change-over valve

Abstract

A water diversion change-over valve comprises a clamp spring, a valve body, a driving piece, a movable ceramic piece, a static ceramic piece, a silica gel ring, a central water outlet piece and an outer water outlet sleeve, a valve rod part is in running fit with a valve rod channel, is sealed and extends out of the valve body to be matched with the clamp spring, and a circular stop plate is in running fit with a top plate of a water inlet cavity and is sealed; the movable ceramic plate, the static ceramic plate and the silica gel ring are arranged in the valve element cavity, the axial positioning protrusion and the axial positioning groove are embedded, the sealing seat plate is inserted into the upper end of the valve element cavity and sealed, the sealing seat plate and the movable ceramic plate are sealed, and the arc-shaped pin plate and the arc-shaped pin groove are connected in an inserted mode. The annular sealing bulge is inserted into the sealing cavity and is matched with the annular bulge; the water outlet cavity, the valve body at the lower part of the annular sealing bulge and the central water outlet piece form an annular water outlet cavity; the driving piece and the movable ceramic piece rotate, and the central water outlet piece and the annular water outlet cavity are subjected to water outlet conversion. The valve body is matched with the outer water outlet sleeve, the movable ceramic piece and the static ceramic piece are arranged in the valve element cavity, radial water inlet, axial center water outlet and axial annular water outlet are achieved, and conversion is convenient.

Description

Technical Field

[0001] The utility model relates to a shower device, in particular to a water distribution conversion valve for a shower device. Background Art

[0002] In the current prior art, Chinese Patent No. 201920000873.0, a shower head water outlet conversion valve with an indication function, includes a main housing, a rotating handwheel, and a decorative cover. A valve core is installed on the main housing through a valve core gland. A fixed core is sleeved on the valve core inside the valve core gland. The fixed core is fixed by a fixing screw provided on the valve core gland. A central notch is provided on the fixed core, and a rotating central core is installed at the central notch. The rotating central core is sleeved on the valve stem of the valve core; a clamping position is provided inside the rotating handwheel. The rotating handwheel is sleeved on the valve core gland, and the clamping position inside it is stuck on the rotating central core, so that the rotating central core can be driven when the rotating handwheel rotates; a through hole is provided on the end face of the rotating handwheel. A fixing rod is provided inside the decorative cover, and the decorative cover is connected to the fixed core through the fixing rod; an indicating notch is provided on the decorative cover, and an icon or text identification layer is provided on the end face of the rotating handwheel. Water enters from one axial end, and two water outlet holes are provided radially. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a water distribution conversion valve, which has the characteristics of radial water inlet and axial two-way water outlet conversion.

[0004] The utility model is realized as follows: A water distribution conversion valve, characterized in that it includes a snap ring, a valve body, a driving member, a moving ceramic sheet, a static ceramic sheet, a silica gel ring, a central water outlet member, and an outer water outlet sleeve.

[0005] The valve body includes a valve rod channel, a flange, a water inlet cavity, an annular sealing protrusion, and a valve core cavity. A radial water inlet hole is provided on the water inlet cavity, and a radial water outlet hole and an axial positioning groove are provided on the valve core cavity.

[0006] The driving member includes a valve rod part, a circular stop plate, an arc rib, and a sealing seat plate. The arc rib is fixed to the circular stop plate and the sealing seat plate. An axial water guiding hole and a circular arc-shaped pin plate are provided on the sealing seat plate.

[0007] The moving ceramic sheet includes a water collecting cavity with an upper opening, an axial water hole, and a circular arc-shaped pin slot.

[0008] The static ceramic sheet includes a water guiding groove, an axial water guiding hole, and an axial positioning protrusion.

[0009] The central water outlet member includes a circular disc and a central water outlet pipe.

[0010] The outer water outlet sleeve includes a sealing cavity, an annular protrusion, and a water outlet cavity.

[0011] The valve stem part is rotationally and sealingly fitted with the valve stem passage and extends out of the valve body to cooperate with the snap ring. The circular stop plate is rotationally and sealingly fitted with the top plate of the water inlet cavity. There is a clearance fit between the radial water inlet hole and the two arc ribs. The moving ceramic plate, the static ceramic plate, the silica gel ring and the central water outlet part are stacked from top to bottom. The moving ceramic plate, the static ceramic plate and the silica gel ring are arranged in the valve core cavity. The axial positioning protrusion and the axial positioning groove are engaged. The sealing seat plate is inserted into the upper end of the valve core cavity and sealed. The arc-shaped pin plate and the arc-shaped pin groove are inserted. The annular sealing protrusion is inserted into the sealing cavity and cooperates with the annular protrusion. The water outlet cavity and the valve body and the central water outlet part below the annular sealing protrusion form an annular water outlet cavity. The driving part and the moving ceramic plate rotate, and the central water outlet part and the annular water outlet cavity perform water outlet conversion.

[0012] Preferably: an annular groove is provided in the silica gel ring;

[0013] A retaining ring is further included, and the retaining ring is engaged with the annular groove.

[0014] Preferably: the retaining ring is made of hard plastic or stainless steel material.

[0015] Preferably: the water guide groove is fan-shaped, and the axial water guide hole is arc-shaped;

[0016] The axial water hole is arc-shaped.

[0017] Preferably: a water outlet interface is provided at the end of the water outlet cavity of the outer water outlet sleeve.

[0018] Preferably: a counterbore is provided at one end of the valve stem passage located in the water inlet cavity;

[0019] A wear-resistant ring is further included,

[0020] The wear-resistant ring is arranged in the counterbore and cooperates with the circular stop plate.

[0021] Preferably: a sealing ring is provided on the annular sealing protrusion.

[0022] Preferably: an annular clamping groove is provided in the valve core cavity of the valve body;

[0023] An annular protrusion is provided on the outer circumferential surface of the silica gel ring, and the annular protrusion is engaged with the annular clamping groove.

[0024] Preferably: an annular notch is provided at the lower end of the sealing seat plate, and a sealing ring is provided in the annular notch;

[0025] The sealing ring seals the moving ceramic plate and the valve core cavity.

[0026] For a water distribution and conversion valve of the present utility model, the valve body adopts such a structure that the valve body cooperates with the outer water outlet sleeve. The moving ceramic plate and the static ceramic plate are arranged in the valve core cavity to realize radial water inlet, axial central water outlet and axial annular water outlet, and the conversion is convenient. Description of the Drawings

[0027] Figure 1 is a cross-sectional view of the present utility model.

[0028] Figure 2 is one of the exploded perspective views of the present utility model.

[0029] Figure 3 is another exploded perspective view of the present utility model.

[0030] Figure 4 is still another exploded perspective view of the present utility model.

[0031] Figure 5 is yet another exploded perspective view of the present utility model.

[0032] Figure 6 is a perspective view of the present utility model. Detailed Description of the Embodiment

[0033] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as limiting the present utility model.

[0034] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "mounted", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the communication inside two elements. 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 situations.

[0035] As Figure 1 、 Figure 2 shown, a water diversion conversion valve includes a circlip 1, a valve body 2, a driving member 3, a moving ceramic sheet 4, a static ceramic sheet 5, a silica gel ring 6, a central water outlet member 7 and an outer water outlet sleeve 8.

[0036] The valve body 2 includes a valve rod channel 21, a flange 22, an external thread connection portion 23, a water inlet cavity 24, an annular sealing protrusion 25 and a valve core cavity 26. A radial water inlet hole 241 is provided on the water inlet cavity 24, and a radial water outlet hole 261 and an axial positioning groove 262 are provided on the valve core cavity 26. There are two axial positioning grooves 262 and they are on a diameter line; the diameter of the flange 22 is greater than the diameter of the external thread connection portion 23, and the diameter of the external thread connection portion 23 is greater than the diameter of the annular sealing protrusion.

[0037] The driving member 3 includes a valve stem portion 31, a circular stop plate 32, an arc rib 33, and a sealing seat plate 34. The arc rib 33 is fixed to the circular stop plate 32 and the sealing seat plate 34. The sealing seat plate 34 is provided with an axial water guide hole 341 and an arc-shaped pin plate 342;

[0038] The moving ceramic sheet 4 includes a water collecting cavity 41 with an upper opening, an axial water hole 42, and an arc-shaped pin groove 43. The axial water hole 42 is arranged in the radial direction;

[0039] The static ceramic sheet 5 includes a water guide groove 51, an axial water guide hole 52, and an axial positioning projection 53. The water guide groove 51 has a top opening and a side opening;

[0040] The central water outlet member 7 includes a circular disc 71 and a central water outlet pipe 72;

[0041] The outer water outlet sleeve 8 includes a sealing cavity 81, an annular projection 82, and a water outlet cavity 83;

[0042] The valve stem portion 31 is rotationally and sealingly engaged with the valve stem passage 21 and extends out of the valve body 2. The clamping groove on the valve stem portion 31 is engaged with the snap ring 1. The circular stop plate 32 is rotationally and sealingly engaged with the top plate of the water inlet cavity 24 to prevent the valve stem portion from moving axially; the radial water inlet hole 241 is in clearance fit with the gap between the two arc ribs 33; the moving ceramic sheet 4, the static ceramic sheet 5, the silicone rubber ring 6, and the central water outlet member 7 are stacked from top to bottom. The moving ceramic sheet 4, the static ceramic sheet 5, and the silicone rubber ring 6 are arranged in the valve core cavity 26. The axial positioning projection 53 is engaged with the axial positioning groove 262. The sealing seat plate 34 is inserted into the upper end of the valve core cavity 26 and sealed. The sealing seat plate 34 is sealed with the moving ceramic sheet 4, and the arc-shaped pin plate 342 and the arc-shaped pin groove 43 are plugged; the annular sealing projection 25 is inserted into the sealing cavity 81 and cooperates with the annular projection 82. The water outlet cavity 83 and the valve body 2 and the central water outlet member 7 below the annular sealing projection 25 form an annular water outlet cavity; the circular disc 71 is in contact with the lower end of the valve body 2 and is sealed and cooperated with the silicone rubber ring 6; the driving member 3 and the moving ceramic sheet 4 rotate, and the central water outlet member 7 and the annular water outlet cavity perform water outlet conversion.

[0043] As a further improvement of the present invention: An annular clamping groove 263 is provided in the valve core cavity 26 of the valve body 2;

[0044] An annular projection 61 is provided on the outer circumferential surface of the silicone rubber ring 6, and the annular projection 61 is engaged with the annular clamping groove 263;

[0045] An annular groove 62 is provided in the silicone rubber ring 6;

[0046] It further includes a retaining ring 9. The retaining ring 9 is made of a hard plastic or stainless steel material, and the retaining ring 9 is engaged with the annular groove 62. It effectively prevents the silicone rubber ring 6 from deforming or displacing and maintains the sealing performance.

[0047] The water guiding groove 51 is fan-shaped, and the axial water guiding holes 52 are arc-shaped;

[0048] The axial water holes 42 are arc-shaped.

[0049] As a further improvement of the present utility model: an outlet interface 84 is provided at the end of the water outlet cavity 83 of the outer water outlet sleeve 8, and the central water outlet pipe 72 extends out of the outlet interface 84.

[0050] As a further improvement of the present utility model: a counterbore 211 is provided at one end of the valve rod passage 21 located in the water inlet cavity 24;

[0051] It further includes a wear-resistant ring 10,

[0052] The wear-resistant ring 10 is arranged in the counterbore 211 and cooperates with the circular stop plate 32.

[0053] As a further improvement of the present utility model: a sealing ring is provided on the annular sealing protrusion 25.

[0054] An annular notch 343 is provided at the lower end of the sealing seat plate 34, and a sealing ring is provided in the annular notch 343;

[0055] The sealing ring seals with the moving ceramic sheet 4 and the valve core cavity 26.

[0056] When the present utility model is in use, in Figure 1 the state, water enters the water inlet cavity 24 through the radial water inlet holes 241; then enters the space between the circular stop plate 32 and the sealing seat plate 34, and then enters the water collecting groove 41 through the axial water guiding holes 341. The water enters the annular water outlet cavity through the axial water holes 42, the water guiding grooves 51, and the radial water outlet holes 261; the path of the water is as Figure 1 the direction of the hollow arrow in;

[0057] In Figure 1 the annular water outlet state, the driving member and the moving ceramic sheet 4 rotate clockwise together by 90 degrees; the axial water holes 42 and the axial water guiding holes 52 are communicated;

[0058] Water enters the water inlet cavity 24 through the radial water inlet holes 241; then enters the space between the circular stop plate 32 and the sealing seat plate 34, and then enters the water collecting groove 41 through the axial water guiding holes 341. The water flows out through the central water outlet pipe 72 of the central water outlet member 7 through the axial water holes 42, the axial water guiding holes 52, and the silica gel ring 6.

[0059] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A water diversion valve, characterized in that: It includes a retaining ring, a valve body, a driving part, a moving ceramic plate, a static ceramic plate, a silicone ring, a central water outlet and an external water jacket. The valve body comprises a valve stem channel, a flange, a water inlet cavity, an annular sealing protrusion and a valve core cavity. The water inlet cavity is provided with a radial water inlet hole, and the valve core cavity is provided with a radial water outlet hole and an axial positioning groove. The driving member comprises a valve stem, a circular stop plate, an arc rib and a sealing seat plate, the arc rib is fixed to the circular stop plate and the sealing seat plate, and the sealing seat plate is provided with an axial water guide hole and an arc-shaped pin plate; The moving ceramic plate comprises a water collecting cavity with an upper opening, an axial water hole and an arc-shaped pin groove; The static ceramic sheet includes a water guide groove, an axial water guide hole and an axial positioning protrusion; The central water outlet part includes a circular plate and a central water outlet pipe; The outgoing water jacket comprises a sealing cavity, an annular protrusion and a water outlet cavity; The valve stem part rotates and seals with the valve stem channel and extends out of the valve body and the retaining spring, the circular stop plate rotates and seals with the top plate of the water inlet chamber, and the radial water inlet hole rotates and seals with the gap between the two arc ribs; the dynamic ceramic plate, the static ceramic plate, the silicone ring and the central water outlet part are stacked from top to bottom, the dynamic ceramic plate, the static ceramic plate and the silicone ring are arranged in the valve core cavity, the axial positioning protrusion and the axial positioning groove are embedded, the sealing seat plate is inserted into the upper end of the valve core cavity and sealed, the sealing seat plate is sealed with the dynamic ceramic plate, and the arc-shaped pin plate and the arc-shaped pin groove are plugged in; the annular sealing protrusion is inserted into the sealing cavity and cooperates with the annular protrusion, and the water outlet cavity and the valve body and the central water outlet part under the annular sealing protrusion constitute an annular water outlet cavity; the driving part and the dynamic ceramic plate rotate, and the water outlet of the central water outlet part and the annular water outlet cavity are switched.

2. A water diversion valve according to claim 1, characterized in that: An annular groove is provided in the silicone ring; The utility model also comprises a retaining ring which is engaged with the annular groove.

3. A water diversion valve according to claim 2, characterized in that: The retaining ring is made of hard plastic or stainless steel.

4. The water diversion valve according to claim 1, characterized in that: The water guide groove is fan-shaped, and the axial water guide hole is arc-shaped; The axial water hole is in an arc shape.

5. The water diversion valve according to claim 1, characterized in that: A water outlet interface is provided at the end of the water outlet cavity of the outgoing water jacket.

6. The water diversion valve according to claim 1, characterized in that: A countersunk hole is provided at one end of the valve stem channel located in the water inlet cavity; Also includes wear rings, The wear-resistant ring is arranged in the countersunk hole and cooperates with the circular stop plate.

7. The water diversion valve according to claim 1, characterized in that: A sealing ring is arranged on the annular sealing protrusion.

8. The water diversion valve according to claim 1, characterized in that: An annular groove is provided in the valve core cavity of the valve body; An annular protrusion is arranged on the outer circumferential surface of the silicone ring, and the annular protrusion is engaged with the annular groove.

9. The water diversion valve according to claim 1, characterized in that: The lower end of the sealing seat plate is provided with an annular notch, and a sealing ring is provided in the annular notch; The sealing ring is sealed with the moving ceramic plate and the valve core cavity.

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