WO2022061964A1

WO2022061964A1 - Ceramic valve core

Info

Publication number: WO2022061964A1
Application number: PCT/CN2020/119964
Authority: WO
Inventors: 何挺
Original assignee: 何挺
Priority date: 2020-03-19
Filing date: 2020-10-09
Publication date: 2022-03-31
Also published as: CN112253795A; CN212318854U

Abstract

A ceramic valve core, comprising an outer cylinder (1) having an upper opening cavity (1A), a stationary ceramic sheet (2), a movable ceramic sheet (3), a support cover (4), and a valve stem (5). A bottom plate body (10) of the outer cylinder (1) is provided with at least three through holes (100). An annular wall body (11) of the outer cylinder (1) is provided with at least one arc-shaped side hole (110). The stationary ceramic sheet (2) is provided with at least three water passing holes (20), wherein the water passing holes (20) are communicated with the through holes (100). The lower surface of the movable ceramic sheet (3) is provided with a slot (30) and a through opening (31) spaced apart from the slot (30). Two of the through holes (100) are first water inlet positions, and the other through hole (100) is a second water inlet/outlet position. When a rod body (50) of the valve stem (5) is rotated to cause the through hole (100) which is the second water inlet/outlet position and the slot (30) to be communicated with each other, a water path forms a first water flow channel; and when the rod body (50) of the valve stem (5) is rotated to cause the through holes (100) which are the first water inlet positions, the through opening (31), and the arc-shaped side hole (110) to be communicated with each other, the water path forms a second water flow channel. By changing a water inlet and outlet structure, the use is more convenient. The ceramic valve core is applied to a thermostatic faucet, can control the opening and closing of two paths of water, and is adjustable in flow; in addition, a check valve is omitted, thus achieving a water channeling prevention function and low costs.

Description

A ceramic valve core

technical field

The invention relates to a ceramic valve core.

Background technique

At present, there is a ceramic valve core in the prior art, which includes an outer cylinder with an upper opening, a static ceramic sheet, a moving ceramic sheet, a support cover, and a valve stem. The bottom plate of the outer cylinder is provided with at least three through holes. The annular wall body of the outer cylinder is provided with at least one arc-shaped side hole, the static ceramic sheet is provided with at least three water passage holes, and the water passage holes communicate with the through holes. The existing problem is: because the water enters from the arc-shaped side holes, and then flows through the water holes and out through the through holes, this structure is inconvenient to use.

To this end, the present invention provides a ceramic valve core.

SUMMARY OF THE INVENTION

In view of the above problems existing in the prior art, the purpose of the present invention is to provide a ceramic valve core, which changes the existing water inlet and outlet structure and is convenient to use.

The object of the present invention can be realized through the following technical solutions:

A ceramic valve core comprises an outer cylinder with an upper opening, a static ceramic sheet, a moving ceramic sheet, a support cover, and a valve stem. The bottom plate body of the outer cylinder is provided with at least three through holes, and the ring wall body of the outer cylinder is provided with At least one arc-shaped side hole, the static ceramic plate is provided with at least three water-passing holes, the water-passing holes communicate with the through holes, and the lower surface of the movable ceramic plate is provided with a notch and a through opening alternated with the notch, two of which are The through hole is the first water inlet level, and the other through hole is the second water inlet level and water outlet level. When the rod body of the valve stem is rotated to connect the through hole of the second water inlet and water outlet level with the slot, at this time The waterway constitutes a first water flow channel;

When the rod body of the valve stem is rotated so that the through hole, the through hole and the arc-shaped side hole of the first water inlet level are connected, the water channel constitutes the second water flow channel at this time.

The ceramic valve core is special in that: the valve stem includes a rod body and a circumferential table body extending along the end of the rod body, the circumferential table body is arranged in the upper opening cavity, and the rod body extends from the upper opening cavity. Passing through the support cover sleeved on the top of the outer cylinder and extending, the upper surface of the movable ceramic plate is provided with an inserting body, and the inserting body is embedded in the fitting hole of the semi-trapezoidal surface of the circumferential table body.

The special feature of the ceramic valve core is that the end face of the slot and the end face of the through port are annular ports formed by a plurality of arc lengths connected end to end, and the area of the slot is larger than that of the through port. area of the mouth.

As mentioned above, a ceramic valve core involved in the present invention has the following beneficial effects:

In the present invention, after using the above-mentioned ceramic valve core, the two through holes are the first water inlet level, and the other through hole is the second water inlet and water outlet level, and the rod body of the valve stem is rotated to make the second water inlet and outlet water level When the through hole and the notch are connected, the water channel constitutes the first water flow channel; when the through hole, the through hole and the arc-shaped side hole of the first water inlet level are connected by rotating the rod body of the valve stem, the water channel constitutes the first water flow channel. Two water flow channels; due to the adoption of this structure, the existing water inlet and outlet structure is changed, and the use is convenient; at the same time, the ceramic valve core of the present invention can be applied to a thermostatic faucet, which can control the opening and closing of two water channels, and the flow rate is adjustable ; In addition, the check valve that needs to be configured in the existing structure is omitted, and the function of preventing water channeling can also be achieved, and the cost is low.

The present invention will be further described below in conjunction with specific embodiments.

Description of drawings

1 is a front view of a ceramic valve core;

Figure 2 is an exploded view of the structure of a ceramic valve core.

detailed description

The embodiments of the present invention are described below by specific embodiments, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

It should be noted that the structures, proportions, sizes, etc. shown in the accompanying drawings of this specification are only used to cooperate with the contents disclosed in the specification for the understanding and reading of those who are familiar with the technology, and are not used to limit the conditions for the implementation of the present invention. , therefore does not have technical substantive significance, any structural modification, proportional relationship change or size adjustment, without affecting the effect that the present invention can produce and the purpose that can be achieved, should still fall within the scope of the present invention. The technical content can cover the scope. At the same time, the terms such as "up", "down", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and are not used to limit the present invention. The practicable scope and the change or adjustment of the relative relationship thereof shall also be regarded as the practicable scope of the present invention without substantially changing the technical content. The specific structure can be described with reference to the drawings of the patent application.

In the following embodiments, the left side of the paper is the left direction, the right side of the paper is the right direction, the upper side of the paper is the upper direction, the lower side of the paper is the downward direction, and the front side of the paper is perpendicular to the front of the paper. The side is the front direction, and the back side perpendicular to the paper is the rear direction.

The present invention provides a ceramic valve core, please refer to FIG. 1 and FIG. 2, which includes an outer cylinder 1 with an upper opening 1A, a static ceramic sheet 2, a movable ceramic sheet 3, a support cover 4, a valve stem 5, an outer cylinder The bottom plate body 10 of 1 is provided with at least three through holes 100 , the annular wall body 11 of the outer cylinder 1 is provided with at least one arc-shaped side hole 110 , and the static ceramic sheet 2 is provided with at least three water passage holes 20 , through which the water passes through. The hole 20 is communicated with the through hole 100. The lower surface of the movable ceramic piece 3 is provided with a slot 30 and a through opening 31 between the slot 30. Two through holes 100 are the first water inlet level, and the other through hole 100 is the second water inlet. Two water inlet and outlet levels, when the rod body 50 of the valve rod 5 is rotated to make the through hole 100 of the second water inlet and outlet water level communicate with the slot 30, the waterway constitutes the first water flow channel at this time;

When the rod body 50 of the valve rod 5 is rotated to connect the through hole 100, the through hole 31 and the arc-shaped side hole 110 of the first water inlet level, the water channel constitutes a second water flow channel. Compared with the prior art, the present invention adopts such a structure, which changes the existing water inlet and outlet structures and is convenient to use. At the same time, the ceramic valve core of the present invention can be applied to a thermostatic faucet, which can control the opening and closing of two channels of water, and the flow rate is adjustable; in addition, the check valve that needs to be configured in the existing structure is omitted, and the function of preventing water blowing can also be achieved. low cost.

1 and 2, in this embodiment, the valve rod 5 includes a rod body 50 and a circumferential table body 51 extending along the end of the rod body 50, and the circumferential table body 51 is disposed in the upper opening 1A, The rod body passes through the support cover 4 sleeved on the top of the outer cylinder 1 from the upper opening 1A and protrudes. The upper surface of the movable ceramic plate 3 is provided with an insertion body 32, and the insertion body 32 is embedded in the circumferential table body. 51 into the fitting hole 510 of the semi-trapezoidal surface.

As shown in FIG. 1 and FIG. 2 , in this embodiment, the end face of the slot 30 and the end face of the through port 31 are annular ports formed by connecting a plurality of arc lengths end to end. The area is larger than that of the through opening 31 .

In the present invention, after using the above-mentioned ceramic valve core, the two through holes are the first water inlet level, and the other through hole is the second water inlet and water outlet level, and the rod body of the valve stem is rotated to make the second water inlet and outlet water level When the through hole and the notch are connected, the water channel constitutes the first water flow channel; when the through hole, the through hole and the arc-shaped side hole of the first water inlet level are connected by rotating the rod body of the valve stem, the water channel constitutes the first water flow channel. Two water flow channels; due to the adoption of this structure, the existing water inlet and outlet structures are changed, and the use is convenient.

To sum up, the present invention effectively overcomes various shortcomings in the prior art and has high industrial utilization value.

The above-mentioned embodiments merely illustrate the principles and effects of the present invention, but are not intended to limit the present invention. Anyone skilled in the art can make modifications or changes to the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed in the present invention should still be covered by the claims of the present invention.

Claims

A ceramic valve core comprises an outer cylinder with an upper opening, a static ceramic sheet, a moving ceramic sheet, a support cover, and a valve stem. The bottom plate body of the outer cylinder is provided with at least three through holes, and the ring wall body of the outer cylinder is provided with At least one arc-shaped side hole, the static ceramic plate is provided with at least three water-passing holes, and the water-passing holes are communicated with the through holes. , two of the through holes are the first water inlet level, and the other through hole is the second water inlet level and water outlet level, and the rod body of the valve stem is rotated to connect the second water inlet and water outlet level through holes and the notch At this time, the waterway constitutes the first water flow channel;

When the rod body of the valve stem is rotated so that the through hole, the through hole and the arc-shaped side hole of the first water inlet level are connected, the water channel constitutes the second water flow channel at this time.
The ceramic valve core according to claim 1, wherein the valve rod comprises a rod body and a circumferential table body extending along the end of the rod body, the circumferential table body is arranged in the upper opening cavity, and the rod body opens from the top The oral cavity passes through the support cover sleeved on the top of the outer cylinder and protrudes, and the upper surface of the movable ceramic plate is provided with an insertion body, and the insertion body is embedded in the fitting hole of the semi-trapezoidal surface of the circumferential table body.
The ceramic valve core according to claim 1 or 2, wherein the end face of the notch and the end face of the through port are annular ports formed by a plurality of arc lengths connected end to end, and the area of the notch larger than the area of the opening.