Large-flow cold-start water mixing valve element

Abstract

The utility model discloses a large-flow cold-start water mixing valve element which comprises a shell, a ceramic movable sleeve and a valve seat. The ceramic movable sleeve comprises a movable piece and a movable piece cover installed on the movable piece, a concave groove is formed in the middle of the top face of the movable piece in a sunken mode, a plane edge is formed on the edge of the top face of the movable piece, the bottom of the movable piece extends outwards to form a supporting edge, and a water passing opening penetrating to the bottom face of the movable piece is formed in the concave groove; an abutting-pushing groove for containing the bottom of the protruding rod is formed in the top face of the movable piece cover, the edge of the bottom face of the movable piece cover extends downwards to form an outer pressing edge corresponding to the supporting edge and an inner pressing edge corresponding to the inner edge of the plane edge, and the middle of the bottom face of the movable piece cover extends downwards to form a plurality of grid bars corresponding to the inner walls of the two ends of the water passing opening. A water passing groove is defined by the water passing opening, the concave groove, the inner pressing edge and the bottom surface of the moving plate; the valve seat is provided with two liquid inlets and a liquid outlet, wherein the two liquid inlets and the liquid outlet are communicated in the straight direction. The utility model can shorten the circulation distance and improve the water flow.

Description

Technical Field

[0001] The utility model relates to the technical field of water mixing valve cores, in particular to a large-flow cold-start water mixing valve core. Background Art

[0002] The valve core is a valve part that the valve body uses to achieve the basic functions of direction control, pressure control or flow control. Among them, the water mixing valve core used for liquid flow control is usually moved by a convex rod to move a ceramic sleeve, and the ceramic sleeve is used to adjust the relative position between the two liquid inlets and one liquid outlet of the water channel and the valve seat to mix hot and cold water.

[0003] See also Figure 1 and Figure 2 The structure of the existing ceramic movable sleeve is a lower cover 11 and an upper cover 12 arranged on the lower cover 11. The top surface of the lower cover 11 is a plane and a through hole 101 penetrating to the bottom surface is opened on the top surface. The upper cover 12 is provided with a positioning plug 102 at its bottom that can penetrate into the through hole 101 and seal the top of the through hole 101. The positioning plug 102 and the through hole 101 form a water groove, but the capacity of this water groove is small and cannot accommodate more water flow. For this reason, the two liquid inlets 501 and the one liquid outlet 502 on the existing valve seat mostly adopt an oblique flow design, which increases the flow distance to buffer and reduce the flow of water, and cannot meet the needs of some customers for large flow. Utility Model Content

[0004] The utility model aims to provide a large-flow cold-start water mixing valve core capable of shortening the flow distance.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A large-flow cold-start water mixing valve core comprises a shell, a ceramic movable sleeve and a valve seat, wherein the shell is provided with a shell cavity with upper and lower ends opening, the shell is provided with the valve seat at its lower end, and the lower end opening of the shell cavity is blocked by the valve seat; the shell cavity is provided with the ceramic movable sleeve in a movable manner at its lower part;

[0007] The ceramic movable sleeve comprises a movable plate and a movable plate cover installed on the movable plate, the middle part of the top surface of the movable plate is recessed to form a concave groove and a plane edge is formed on the edge of the top surface, the bottom of the movable plate extends outward to form a supporting edge, and a water outlet that passes through the bottom surface of the movable plate is opened in the concave groove; the bottom surface edges of the movable plate cover respectively extend downward to form an outer pressure edge corresponding to the supporting edge and an inner pressure edge corresponding to the inner edge of the plane edge, and the middle part of the bottom surface of the movable plate cover respectively extends downward to form a plurality of gratings corresponding to the inner walls of both ends of the water outlet, so that the movable plate cover is installed on the movable plate, the outer pressure edge presses against the supporting edge, and the inner pressure edge presses against the inner edge of the plane edge, and the plurality of gratings penetrate into the water outlet and press against the inner walls of both ends of the water outlet, and the water outlet, the concave groove, the inner pressure edge and the bottom surface of the movable plate form a water outlet;

[0008] The valve seat is formed with two straight-flow liquid inlets and a liquid outlet, so that when the ceramic movable sleeve moves in the shell cavity, the water channel can connect only the liquid outlet, connect the liquid outlet with any liquid inlet, or connect the liquid outlet with two liquid inlets.

[0009] As a further technical solution of the utility model: the support edge is provided with a plurality of slots at intervals on its upper part, and the outer pressure edge is provided with a block corresponding to each slot, so that when the movable plate cover is installed on the movable plate, the block is engaged with the slot correspondingly.

[0010] As a further technical solution of the utility model: a sealing O-ring is provided between the outer pressure edge and the inner pressure edge.

[0011] As a further technical solution of the utility model: the liquid outlet is in the shape of a water drop that is narrow at the top and wide at the bottom, and the two liquid inlets are located on both sides of the upper narrow end of the liquid outlet and are mirror-arranged relative to the symmetry axis of the liquid outlet, and each liquid inlet is in the shape of a minor arc; the water outlet is in the shape of a gourd that is inclined relative to the liquid outlet, wide at the top and narrow at the bottom.

[0012] As a further technical solution of the utility model: the valve seat comprises a bottom shell and a static plate arranged on the bottom shell, the bottom shell is provided with two liquid inlet lower ports and a liquid outlet lower port in a middle part thereof which straightly pass through its top surface and bottom surface, the top surface of the bottom shell is provided with convex edges along the edges of the liquid inlet lower port and the liquid outlet lower port, and a matching water inlet sealing ring is sleeved on each convex edge; the static plate is provided with two liquid inlet upper ports and a liquid outlet upper port in a middle part thereof which straightly pass through its top surface and bottom surface, each liquid inlet upper port corresponds to the liquid inlet lower port, and the liquid outlet upper port corresponds to the liquid outlet lower port; the bottom surface of the static plate is provided with positioning grooves for accommodating the convex edges and the water inlet sealing ring corresponding to the two liquid inlet upper ports and the liquid outlet upper port, so that each corresponding liquid inlet upper port is directly connected to the liquid inlet lower port as a liquid inlet, and each liquid outlet upper port is directly connected to the liquid outlet lower port as a liquid outlet.

[0013] As a further technical solution of the utility model: the bottom shell is provided with a plurality of hooks for hanging with the outer shell and a plurality of positioning pieces for positioning the static piece at intervals along its edge, and a positioning opening is recessed on the edge of the static piece corresponding to each hook and positioning piece.

[0014] As a further technical solution of the utility model: the bottom surface of the bottom shell is provided with sealing grooves along the edges of the two lower liquid inlet ports and the lower liquid outlet ports, and a bottom sealing ring matching the sealing grooves is installed.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model proposes a large-flow cold-start water mixing valve core which, through the cooperation among the outer shell, the convex rod, the convex rod sleeve, the ceramic movable sleeve and the valve seat, can form a water channel with sufficient space with the water outlet, the concave groove, the inner pressure edge and the bottom surface of the movable plate, so that two straight-flow type liquid inlets and one liquid outlet can be formed on the valve seat, which effectively shortens the flow distance and increases the water flow rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the valve seat of the existing water mixing valve core.

[0017] Figure 2 It is a schematic diagram of a ceramic movable sleeve of an existing water mixing valve core.

[0018] Figure 3 This is a schematic diagram of a large flow cold start mixing water valve core.

[0019] Figure 4 It is an assembly diagram of the convex rod, convex rod sleeve, ceramic movable sleeve and valve seat.

[0020] Figure 5 This is a first-person exploded view of the ceramic movable set.

[0021] Figure 6 This is the second perspective exploded view of the ceramic movable set.

[0022] Figure 7 It is a schematic diagram of a large-flow cold-start water mixing valve core, in which the water inlet is in a gourd shape that is wide at the top and narrow at the bottom and is inclined relative to the liquid outlet.

[0023] Figure 8 This is the first perspective exploded view of the valve seat.

[0024] Fig. 9 This is the second perspective exploded view of the valve seat. DETAILED DESCRIPTION

[0025] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the protection scope of the present invention.

[0026] See also Figure 3 , Figure 4 A large-flow cold-start water mixing valve core comprises a shell 10, a convex rod 20, a convex rod sleeve 30, a ceramic movable sleeve 40 and a valve seat 50. The shell 10 is provided with a shell cavity with upper and lower openings. The shell 10 is hung with the valve seat 50 at its lower end to block the lower opening of the shell cavity; the shell cavity is provided with the convex rod sleeve 30 at its upper part and the ceramic movable sleeve 40 is movably provided at its lower part; the convex rod 20 is swungly mounted on the convex rod sleeve 30, the top of the convex rod 20 passes through the upper opening of the shell cavity, and the bottom of the convex rod 20 can drive the ceramic movable sleeve 40 to move in the shell cavity;

[0027] Combined with reference Figure 5 , Figure 6 The ceramic movable sleeve 40 includes a movable plate 41 and a movable plate cover 42 installed on the movable plate 41. The middle part of the top surface of the movable plate 41 is recessed to form a concave groove 411 and a flat edge 412 is formed on the edge of the top surface. The bottom of the movable plate 41 extends outward to form a supporting edge 413. The concave groove 411 is provided with a water passage 414 that passes through the bottom surface of the movable plate 41; the top surface of the movable plate cover 42 is formed with a push groove 400 for accommodating the bottom of the convex rod 20, and the bottom surface edges of the movable plate cover 42 extend downward to form external pressure edges corresponding to the supporting edge 413. 421 and an inner pressure edge 422 corresponding to the inner edge of the plane edge 412, the middle of the bottom surface of the movable plate cover 42 respectively extends downward to form a plurality of gratings 423 corresponding to the inner walls of the two ends of the water opening 414, for the movable plate cover 42 to be installed on the movable plate 41, the outer pressure edge 421 presses against the supporting edge 413, the inner pressure edge 422 presses against the inner edge of the plane edge 412, and the plurality of gratings 423 penetrate into the water opening 414 and press against the inner walls of the two ends of the water opening 414, and the water opening 414, the concave groove 411, the inner pressure edge 422 and the bottom surface of the movable plate 41 form a water groove;

[0028] Combined with reference Figure 8 , Fig. 9 The valve seat 50 is formed with two straight-flow type liquid inlets 501 and a liquid outlet 502, so that when the protruding rod 20 drives the ceramic movable sleeve 40 to move in the shell cavity, the water groove can connect only the liquid outlet 502, connect the liquid outlet 502 with any liquid inlet 501, or connect the liquid outlet 502 with two liquid inlets 501.

[0029] Furthermore, in this embodiment, the support edge 413 is recessed with a plurality of bayonet holes 401 at intervals on its upper portion, and the outer pressure edge 421 is protruding with a block 402 corresponding to each bayonet hole 401, so that when the movable plate cover 42 is installed on the movable plate 41, the block 402 and the bayonet hole 401 are correspondingly engaged, thereby improving the installation tightness between the movable plate cover 42 and the movable plate 41.

[0030] Furthermore, in this embodiment, a sealing O-ring 403 is provided between the outer pressure edge 421 and the inner pressure edge 422 to improve the sealing performance of the water channel.

[0031] Furthermore, in this embodiment, the liquid outlet 502 is in the shape of a water droplet with a narrow top and a wide bottom, and the two liquid inlets 501 are located on both sides of the upper narrow end of the liquid outlet 502 and are mirror-imaged relative to the symmetry axis of the liquid outlet 502, and each liquid inlet 501 is in the shape of a minor arc; Figure 7 The water passage 414 is in a gourd shape that is wide at the top and narrow at the bottom and is inclined relative to the liquid outlet 502, so that the water passage can connect only the liquid outlet 502, connect the liquid outlet 502 with any liquid inlet 501, or connect the liquid outlet 502 with two liquid inlets 501.

[0032] Furthermore, in this embodiment, the valve seat 50 includes a bottom shell 51 and a static sheet 52 arranged on the bottom shell 51. The bottom shell 51 is provided with a plurality of hooks 511 for hanging with the outer shell 10 and a plurality of positioning sheets 512 for positioning the static sheet 52 at intervals along its edge. The bottom shell 51 is provided with two liquid inlet ports 513 and a liquid outlet port 514 that penetrate the top and bottom surfaces thereof in a straight direction in the middle thereof. The top surface of the bottom shell 51 is provided with convex edges 515 along the edges of the liquid inlet ports 513 and the liquid outlet ports 514, respectively, and a matching water inlet sealing ring 516 is sleeved on each convex edge 515; the edge of the static sheet 52 corresponds to each hook 511 and the positioning sheet 512. 12 is recessed with a positioning port 521, and the static plate 52 is provided with two liquid inlet upper ports 522 and a liquid outlet upper port 523 which are straightly connected with the top surface and the bottom surface thereof in the middle thereof, each liquid inlet upper port 522 corresponds to the liquid inlet lower port 513, and the liquid outlet upper port 523 corresponds to the liquid outlet lower port 514; the bottom surface of the static plate 52 is recessed with a positioning groove 524 for accommodating the convex edge 515 and the water inlet sealing ring 516 corresponding to the two liquid inlet upper ports 522 and the one liquid outlet upper port 523, so that each corresponding liquid inlet upper port 522 is directly connected with the liquid inlet lower port 513 to form the liquid inlet port 501, and the liquid outlet upper port 523 is directly connected with the liquid outlet lower port 514 to form the liquid outlet port 502.

[0033] Furthermore, in this embodiment, a sealing groove 503 is recessed along the edges of the two lower liquid inlet ports 513 and the lower liquid outlet ports 514 on the bottom surface of the bottom shell 51 , and a bottom sealing ring 504 matching the sealing groove 503 is installed.

[0034] Furthermore, the specific structure of the convex rod 20 and the convex rod sleeve 30 includes but is not limited to adopting the existing design or flexibly designing according to actual needs.

[0035] It can be understood that the working principle of a large-flow cold-start mixing water valve core of the utility model is as follows: the convex rod 20 drives the ceramic movable sleeve 40 to move in the shell cavity, so that the water trough only connects the liquid outlet 502, connects the liquid outlet 502 with any liquid inlet 501, or connects the liquid outlet 502 with two liquid inlets 501; and when the water trough connects the liquid outlet 502 with any liquid inlet 501 or connects the liquid outlet 502 with two liquid inlets 501, water can flow directly into the water trough from the liquid inlet 501, and the water trough formed by the water outlet 414, the concave groove 411, the inner pressure edge 422 and the bottom surface of the movable plate 41 has enough space to accommodate the water flow flowing directly in, and can use a plurality of grid bars 423 to play the role of noise reduction and silencing, and then the water flows out from the liquid outlet 502 directly connected to the water trough, effectively shortening the flow distance and increasing the water flow rate.

[0036] To sum up, the utility model is a large-flow cold-start mixing water valve core, through the cooperation between the outer shell 10, the convex rod 20, the convex rod sleeve 30, the ceramic movable sleeve 40 and the valve seat 50, which can form a water channel with sufficient space with the water port 414, the concave groove 411, the inner pressure edge 422 and the bottom surface of the movable plate 41, so that two straight-flow type liquid inlets 501 and a liquid outlet 502 can be formed on the valve seat 50, which effectively shortens the flow distance and increases the water flow rate.

[0037] As long as it does not violate the creative idea of ​​the utility model, any combination of various different embodiments of the utility model should be regarded as the content disclosed by the utility model; within the technical concept of the utility model, any simple modification of the technical solution and any combination of different embodiments that do not violate the creative idea of ​​the utility model should be within the protection scope of the utility model.

Claims

1. A large-flow cold-start water mixing valve core, comprising a housing (10), a ceramic movable sleeve (40) and a valve seat (50), wherein the housing (10) is provided with a housing cavity with upper and lower openings, and the housing (10) is provided with the valve seat (50) at its lower end, and the lower opening of the housing cavity is blocked by the valve seat (50); the housing cavity is provided with the ceramic movable sleeve (40) in a movable manner at its lower part; Features: The ceramic movable sleeve (40) comprises a movable plate (41) and a movable plate cover (42) mounted on the movable plate (41); a concave groove (411) is formed in the middle of the top surface of the movable plate (41) and a plane edge (412) is formed on the edge of the top surface; the bottom of the movable plate (41) extends outward to form a supporting edge (413); a water passage (414) is provided in the concave groove (411) and passes through the bottom surface of the movable plate (41); the bottom edge of the movable plate cover (42) extends downward to form an outer pressure edge (421) corresponding to the supporting edge (413) and an inner edge (412) corresponding to the inner edge (412) of the plane edge (412). The inner pressure edge (422) of the movable plate cover (42) is formed in the middle of the bottom surface of the movable plate cover (42) and extends downward to form a plurality of gratings (423) corresponding to the inner walls of the two ends of the water passage (414), so that the movable plate cover (42) is installed on the movable plate (41), the outer pressure edge (421) presses against the supporting edge (413), the inner pressure edge (422) presses against the inner edge of the plane edge (412), and the plurality of gratings (423) penetrate into the water passage (414) and press against the inner walls of the two ends of the water passage (414), and the water passage (414), the concave groove (411), the inner pressure edge (422) and the bottom surface of the movable plate (41) form a water passage; The valve seat (50) is formed with two liquid inlets (501) and a liquid outlet (502) for straight flow, so that when the ceramic movable sleeve (40) moves in the shell cavity, the water channel can connect only the liquid outlet (502), connect the liquid outlet (502) with any liquid inlet (501), or connect the liquid outlet (502) with two liquid inlets (501).

2. The large flow cold start water mixing valve core according to claim 1, characterized in that: The supporting edge (413) is provided with a plurality of bayonet holes (401) at intervals on its upper portion, and the outer pressing edge (421) is provided with a bayonet block (402) corresponding to each bayonet hole (401), so that when the movable plate cover (42) is installed on the movable plate (41), the bayonet block (402) is correspondingly engaged with the bayonet hole (401).

3. The large flow cold start water mixing valve core according to claim 1, characterized in that: A sealing O-ring (403) is provided between the outer pressing edge (421) and the inner pressing edge (422).

4. The large flow cold start water mixing valve core according to claim 1, characterized in that: The liquid outlet (502) is in the shape of a water droplet that is narrow at the top and wide at the bottom. The two liquid inlets (501) are located on both sides of the upper narrow end of the liquid outlet (502) and are arranged in a mirror image relative to the symmetry axis of the liquid outlet (502). Each liquid inlet (501) is in the shape of a minor arc. The water passage (414) is in the shape of a gourd that is inclined relative to the liquid outlet (502) and wide at the top and narrow at the bottom.

5. The large flow cold start water mixing valve core according to claim 1, characterized in that: The valve seat (50) comprises a bottom shell (51) and a static plate (52) arranged on the bottom shell (51); the bottom shell (51) is provided with two liquid inlet lower ports (513) and a liquid outlet lower port (514) in the middle thereof, which are straight through the top surface and the bottom surface thereof; the top surface of the bottom shell (51) is provided with convex edges (515) along the edges of the liquid inlet lower ports (513) and the liquid outlet lower ports (514), and a matching water inlet sealing ring (516) is sleeved on each convex edge (515); the static plate (52) is provided with two liquid inlet upper ports (522) and a liquid outlet upper port in the middle thereof, which are straight through the top surface and the bottom surface thereof. (523), each liquid inlet upper port (522) corresponds to a liquid inlet lower port (513), and each liquid outlet upper port (523) corresponds to a liquid outlet lower port (514); the bottom surface of the static plate (52) is concavely provided with a positioning groove (524) for accommodating a convex edge (515) and a water inlet sealing ring (516) corresponding to two liquid inlet upper ports (522) and one liquid outlet upper port (523), so that each corresponding liquid inlet upper port (522) and liquid inlet lower port (513) are directly connected to form a liquid inlet (501), and the liquid outlet upper port (523) and liquid outlet lower port (514) are directly connected to form a liquid outlet (502).

6. The large flow cold start water mixing valve core according to claim 5, characterized in that: The bottom shell (51) is provided with a plurality of buckle hooks (511) for hanging with the outer shell (10) and a plurality of positioning pieces (512) for positioning the static piece (52) at intervals along its edge, and a positioning opening (521) is recessed on the edge of the static piece (52) corresponding to each buckle hook (511) and positioning piece (512).

7. The large flow cold start water mixing valve core according to claim 5, characterized in that: The bottom surface of the bottom shell (51) is provided with a sealing groove (503) along the edges of the two lower liquid inlet ports (513) and the lower liquid outlet port (514), and a bottom sealing ring (504) matching the sealing groove (503) is installed.

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