Valve core

Abstract

To provide a valve core which is resistant to breakage or deformation. [Solution] The valve core comprises a valve body 10, a valve stem 20, a rotating seat, an inner core 30, a movable valve piece 40, a fixed valve piece 50 and a valve seat 60, the inner core, the movable valve piece and the fixed valve piece are assembled inside the valve body, the inner core is adapted to articulate the movable valve piece under the control of the valve stem, the radial circumferential side of the inner core and the valve body are adjacent to each other, the valve stem and the inner core are joined to each other and extend from the outside of the valve body, the inner core includes a valve member 31 and a retaining member 32, the valve member is made of a resin material, and the valve member is provided with several clamping portions 33 that clamp the movable valve piece, the retaining member is made of a wear-resistant metallic material, the retaining member and the valve member are joined to each other, and the valve member is located within the range of an orthogonal projection of the retaining member along its axial direction.

Description

[Technical field]

[0001] The present invention relates to a pipeline device for controlling a fluid, and in particular to a valve core, which is used to control the flow of a fluid. [Background technology]

[0002] A valve core is a type of pipeline device used to control fluid, which can be applied as a flow control valve or a mixing valve.

[0003] The conventional valve core comprises a valve body, a valve stem, an inner core, a movable valve piece, a fixed valve piece, and a valve seat, wherein the inner core, the movable valve piece, and the fixed valve piece are assembled inside the valve body, the movable valve piece and the fixed valve piece are each made of a ceramic material, the movable valve piece and the fixed valve piece are stacked closely together, the inner core and the movable valve piece, which are made of a resin material, are joined to each other, the valve seat is assembled to one end of the valve body, the fixed valve piece and the valve seat are joined to each other, one end of the valve stem and the inner core are joined to each other, and the other end of the valve stem protrudes from the outside of the valve body.

[0004] The fixed valve piece has several through grooves formed therethrough, and a merging groove is formed on the side of the movable valve piece facing the fixed valve piece. When the valve stem is pulled sideways, the valve stem causes the inner core to slide sideways in a articulated manner, and the inner core cooperates with the movable valve piece to slide sideways, changing the opposing configuration between the merging groove and each of the through grooves. Thus, the fluid that passes through the valve seat and enters at least one of the through grooves controls whether it can enter the merging groove, and then passes through the other through grooves and the valve seat to leave the valve core, thereby controlling whether the fluid can flow through the valve core.

[0005] By manipulating the valve rod and rotating the movable valve piece, the flow path area communicating between the merging groove and each of the through grooves can be changed, thereby controlling the flow rate of the fluid between each of the through grooves and the merging groove, and therefore changing the flow rate of the fluid passing through the valve core. The number and configuration of each of the through grooves can also be changed, and the fluids from different sources can be controlled to mix in a required ratio at the merging groove. Summary of the Invention [Problem to be solved by the invention]

[0006] In the process of moving or rotating the inner core in a piecewise manner using the valve stem, the radial outer periphery of the inner core comes into contact with the valve box, and contact friction occurs between the inner core and the valve box, which can easily cause wear damage to the inner core made of a resin material.

[0007] The primary object of the present invention is to provide a valve core. [Means for solving the problem]

[0008] In order to achieve the above-mentioned object, the present invention adopts the following technical solution: the valve core includes a valve body, a valve stem, a rotating seat, an inner core, a movable valve piece, a fixed valve piece, and a valve seat, in which the rotating seat, the inner core, the movable valve piece, and the fixed valve piece are sequentially installed in the valve body along the axial direction, the movable valve piece and the fixed valve piece are respectively made of ceramic material, the movable valve piece and the fixed valve piece are stacked closely, the fixed valve piece has several through grooves formed therethrough, and a merging groove is formed on the movable valve piece facing the fixed valve piece, the inner core and the movable valve piece are joined together, the inner core articulates the movable valve piece under the control of the valve stem, the radial side of the inner core and the valve body are adjacent to each other, the valve seat is assembled to one end of the valve body, and the fixed valve piece is connected to the movable valve piece. the valve piece and the valve seat are joined to each other, the valve stem and the rotating seat are pivotally connected by an axial rod, one end of the valve stem is pivotally connected to the inner core, one end of the valve stem and the inner core are joined to each other, and the other end of the valve stem extends from the outside of the valve body, the inner core includes a valve member and a retaining member, wherein the valve member is a plate-like structure made of a resin material, and the retaining member is a plate-like structure made of a wear-resistant metal material, the valve member and the retaining member are installed along the axial direction, and the retaining member and the valve member are joined to each other, and several clamping parts are provided on the side of the valve member far away from the retaining member to clamp the movable valve piece, and the valve member is located within the range of the orthogonal projection of the retaining member along the axial direction. Effect of the Invention

[0009] In the process of using the valve stem to move or rotate the inner core in a rhythmic manner, when the retaining member, which is made of a wear-resistant metal material, comes into contact with the valve body and generates contact friction, the retaining member is not easily damaged or deformed, and the articulating member can maintain a predicted trajectory to articulately operate the movable valve piece, thereby achieving practical advances. [Brief description of the drawings]

[0010] [Figure 1] FIG. 1 is a perspective view of a first embodiment of the present invention. [Diagram 2] FIG. 1 is an exploded perspective view of a first embodiment of the present invention. [Diagram 3] FIG. 2 is an exploded perspective view of an inner core according to a first embodiment of the present invention. [Figure 4] FIG. 2 is a partial cross-sectional view of the first embodiment of the present invention. [Diagram 5] FIG. 2 is a side view of an inner core according to a second embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] With reference to the accompanying drawings, the following are examples of the valve core of the present invention. These examples are for illustrative purposes only, and the utility model application should not be construed as being limited to these structures.

[0012] [Example 1] As shown in FIG. 1 to FIG. 4, the first embodiment of the valve core includes a valve body 10, a valve stem 20, a rotating seat 25, an inner core 30, a movable valve piece 40, a fixed valve piece 50, and a valve seat 60, among which, the rotating seat 25, the inner core 30, the movable valve piece 40, and the fixed valve piece 50 are sequentially installed in the valve body 10 along the axial direction, the movable valve piece 40 and the fixed valve piece 50 are each made of a ceramic material, the movable valve piece 40 and the fixed valve piece 50 are closely stacked, the fixed valve piece 50 has several through grooves 52 formed therethrough, the movable valve piece 40 has a merging groove 42 formed on the side facing the fixed valve piece 50, and the inner The core 30 and the movable valve piece 40 are joined together, the inner core 30 is controlled by the valve stem 20 to articulate the movable valve piece 40, the radial circumferential side of the inner core 30 and the valve body 10 are adjacent to each other, the valve seat 60 is assembled to one end of the valve body 10, the fixed valve piece 50 and the valve seat 60 are joined together, the valve stem 20 and the rotating seat 25 are pivotally connected by a shaft 26, one end of the valve stem 20 is pivotally connected to the inner core 30, and the other end of the valve stem 20 protrudes from the outside of the valve body 10. The above-mentioned configuration is an existing technology that is well known to those skilled in the art in the technical field to which the present invention belongs.

[0013] The fixed valve piece 50 is formed with three through grooves 52, so that the first embodiment can be used as a mixing valve for adjusting the liquid mixing ratio of two different water temperatures, i.e., cold water and hot water. By changing the number of the through grooves 52, it can be configured to select another conversion implementation as a flow control valve for adjusting the amount of water.

[0014] The inner core 30 includes a pneumatic member 31 and a retaining member 32, of which the pneumatic member 31 is a plate-like structure made of a resin material, and is provided on the side of the movable valve piece 40 that is farther away from the fixed valve piece 50. The pneumatic member 31 is provided with several clamping portions 33 that clamp the movable valve piece 40. The retaining member 32 is a plate-like structure made of a wear-resistant metal material, and the movable valve piece 40, the pneumatic member 31, and the retaining member 32 are provided in sequence along the axial direction. The retaining member 32 is provided on the side of the articulating member 31 that is farther away from the movable valve piece 40, and the retaining member 32 and the articulating member 31 are joined to each other. The articulating member 31 is located within the range of the orthogonal projection of the retaining member 32 along its axial direction. Specifically, the radial dimension of the articulating member 31 is smaller than or equal to the radial dimension of the retaining member 32. In this example, the radial dimension of the articulating member 31 is equal to the radial dimension of the retaining member 32.

[0015] In the process of moving or rotating the inner core 30 in a nodular manner by the valve stem 20, the nodular member 31 is located within the range of the orthogonal projection of the retaining member 32 along its axial direction. Therefore, when the retaining member 32, which is made of a wear-resistant metal material, comes into contact with the valve box 10 and generates contact friction, the nodular member 31 can maintain a predicted trajectory that nodularly operates the movable valve piece 40, and the retaining member 32 is not easily damaged or deformed.

[0016] When the embodiment 1 is applied as the mixing valve capable of adjusting the mixing ratio of two liquids of different temperatures, a part of the thermal energy abundant in the high-temperature liquid passes through the fixed valve piece 50 and is transferred to the inner core 30. This thermal energy may cause a dimensional change due to the temperature change of the articulating member 31. Therefore, the articulating member 31 and the retaining member 32 are respectively made of different materials, so that the influence of this thermal energy on the dimensions of the retaining member 32 can be reduced, and the articulating member 31 can maintain the predicted trajectory that articulately operates the movable valve piece 40.

[0017] A first hole 34 is formed through the retaining member 32 in the axial direction, and a convex portion 35 is provided to protrude and extend from the nodal member 31, and the convex portion 35 is adapted to enter the first hole 34. More specifically, a rectangular hole is selected as the first hole 34, and a rectangular frame-like structure is selected as the convex portion 35 to match the first hole 34, and the convex portion 35 is used to provide a connection with the valve rod 20, and the rectangular convex portion 35 is fitted into the rectangular first hole 34, thereby making it possible to improve the convenience of assembling the nodal member 31 and the retaining member 32.

[0018] Two second holes 36 are formed through the retaining member 32, and two limiting portions 37 are formed in the retaining member 32, each positioned at each of the second holes 36. Two locking and retaining structures 38 are protruding and extending from the articulating member 31, and each of the locking and retaining structures 38 is adapted to enter each of the second holes 36 and is locked and retained by each of the limiting portions 37. Specifically, each of the locking and retaining structures 38 is configured with two locking hooks 39 facing each other, and each of the locking hooks 39 is locked and retained by one of the limiting portions 37 corresponding to it in space.

[0019] Two notches 322 are formed in the retaining member 32, and each of the notches 322 extends to the radial circumferential side of the retaining member 32. Two recesses 312 are recessed from the side of the piecing member 31 facing the retaining member 32 toward the movable valve piece 40, and each of the recesses 312 corresponds to each of the notches 322.

[0020] [Example 2] As shown in FIG. 5, the configuration of the second embodiment that differs from the first embodiment will be mainly described. In the second embodiment, the radial dimension of the articulating member 31 is smaller than the radial dimension of the holding member 32. [Explanation of symbols]

[0021] 10: Valve box 20: Valve stem 25: Swivel seat 26: Axis rod 30: Inner Core 31: Articulating member 312: Recess 32: Holding member 322: Notch 33: Holding part 34: 1st hole 35: Convex 36:Second hole 37: Restriction section 38: Locking and holding structure 39: Locking hook 40: Movable valve piece 42: Merging ditch 50: Fixed valve piece 52: Groove 60: Valve seat

Claims

1. A valve core including a valve body, a valve stem, a rotating seat, an inner core, a movable valve leaf, a fixed valve leaf, and a valve seat, The rotating seat, the inner core, the movable valve piece and the fixed valve piece are sequentially installed in the valve body along the axial direction, the movable valve piece and the fixed valve piece are respectively made of ceramic material, the movable valve piece and the fixed valve piece are closely stacked, the fixed valve piece has several through grooves formed therethrough, and a merging groove is formed on the movable valve piece on the side facing the fixed valve piece, the inner core and the movable valve piece are joined together, the inner core articulates the movable valve piece under the control of the valve stem, the radial circumferential side of the inner core and the valve body are adjacent to each other, the valve seat is assembled to one end of the valve body, the fixed valve piece and the valve seat are joined together, the valve stem and the rotating seat are pivotally connected by a shaft rod, and one end of the valve stem is pivotally connected to the inner core, one end of the valve stem and the inner core are joined together, and the other end of the valve stem is extended from the outside of the valve body, a valve core including an inner core including a nodal member and a retaining member, the nodal member being a disk-like structure made of a resin material, the retaining member being a disk-like structure made of a wear-resistant metallic material, the nodal member and the retaining member being installed along an axial direction, the retaining member and the nodal member being joined to each other, several clamping portions for clamping the movable valve piece are provided on a side of the nodal member that is farther away from the retaining member, and the nodal member is located within a range of an orthogonal projection of the retaining member along the axial direction.

2. 2. The valve core according to claim 1, wherein the radial dimension of the articulating member is smaller than or equal to the radial dimension of the retaining member.

3. 2. The valve core according to claim 1, wherein a first hole is formed through the retaining member along the axial direction, and a protrusion is provided to protrude from the joint member, the protrusion being adapted to enter the first hole.

4. 2. The valve core according to claim 1, wherein the retaining member has two second holes formed therethrough, the retaining member has two limiting portions each positioned at the second holes, two locking structures are protruding and extending from the articulating member, each of the locking structures is configured with two locking hooks facing each other, and each of the locking hooks is locked and held by one of the limiting portions corresponding to it in space.

5. 2. The valve core according to claim 1, wherein the retaining member is formed with two notches, each of which extends to a radial circumferential side of the retaining member, and two recesses are recessed from a side of the articulating member facing the retaining member toward the movable valve piece, each of which corresponds to one of the notches.

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