Anti-fouling valve core

Abstract

The utility model provides a kind of anti-fouling valve core belongs to valve core field.It solves the problem that metal material can generate insoluble matter by chemical reaction in water for a long time, and the insoluble matter such as scale can be attached on valve body, and it is also possible to bring scale into the inside of valve core in the process of valve core telescopic movement, thereby corroding sealing ring, the utility model includes valve body, valve stem and several sealing rings, characterized in that, the valve body is provided with locking cap above, locking cap and valve body are both provided with through hole one and through hole two matched with valve stem, the valve stem is sequentially inserted into the through hole one of locking cap and the through hole two of valve body central part, the through hole on the valve body is provided with several ring grooves for installing sealing ring, several sealing rings are embedded in ring groove, the installation groove is set on the cooperation place of valve body lower side and valve stem, the installation groove is provided with anti-fouling ring, and the anti-fouling ring is divided into two layers.

Description

Technical Field

[0001] This utility model belongs to the field of valve cores, and specifically relates to an anti-scaling valve core. Background Technology

[0002] The valve core is a component of the valve body that enables basic functions such as directional control, pressure control, or flow control through its movement. An improved valve core, published online under publication number CN218761494U, is described. In this application, the valve body is made of copper. Metal materials can undergo chemical reactions in water over a long period of time to generate insoluble substances. Due to the properties of metals, scale and other insoluble substances can adhere to the valve body. During the extension and retraction of the valve core, scale may be carried into the valve core, thereby corroding the sealing ring and affecting the normal use of the valve core. Summary of the Invention

[0003] The purpose of this invention is to address the aforementioned problems in the existing technology by providing an anti-scaling valve core.

[0004] The purpose of this utility model can be achieved through the following technical solution: a scale-proof valve core, including a valve body, a valve stem and several sealing rings, characterized in that a locking cap is provided on the top of the valve body, and both the locking cap and the valve body are provided with a through hole one and a through hole two that cooperate with the valve stem, and the valve stem is sequentially inserted into the through hole one of the locking cap and the through hole two in the center of the valve body.

[0005] The valve body has several annular grooves for installing sealing rings on the through hole. Several sealing rings are embedded in the annular grooves and cooperate with the outside of the valve stem to form a multi-layer sealing structure.

[0006] An installation groove is provided at the lower part of the valve body where it meets the valve stem. An anti-scaling ring is provided in the installation groove. The anti-scaling ring is divided into two layers. One layer is located in the installation groove, and the other layer extends downward from the groove opening into an arc-shaped anti-scaling layer.

[0007] In the aforementioned anti-scaling valve core, a sealing gasket is provided at the lower end of the valve stem, and a pressure plate is embedded at the upper end of the sealing gasket.

[0008] In the aforementioned anti-scaling valve core, the valve body and the locking cap cooperate with each other, and a movable groove is provided between them. A stainless steel spring is provided in the movable groove, and the stainless steel spring is sleeved on the valve stem. A stainless steel clip is provided between the spring groove and the upper part of the spring groove.

[0009] In one of the aforementioned anti-scaling valve cores, a stainless steel shaft clip is provided below the sealing gasket, the valve stem passes through the sealing gasket, and a tapered portion is provided below the sealing gasket for engaging and limiting the movement of the stainless steel shaft clip.

[0010] In the aforementioned anti-scaling valve core, there are two sealing rings, which are arranged coaxially in an upward and downward direction.

[0011] Compared with existing technologies, this anti-scaling valve core prevents scale buildup by installing an anti-scaling ring and anti-scaling surface, reducing the harm of scale to the valve core and greatly increasing its service life. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the main body of this anti-scaling valve core;

[0013] Figure 2 This is a cross-sectional view of the anti-scaling valve core.

[0014] In the diagram, 1. Valve body; 2. Valve stem; 3. Sealing ring; 4. Locking cap; 5. Through hole one; 6. Through hole two; 7. Annular groove; 8. Mounting groove; 9. Anti-scaling ring; 10. Anti-scaling layer; 11. Sealing gasket; 12. Pressure plate; 13. Movable groove; 14. Stainless steel spring; 15. Stainless steel clip; 16. Stainless steel shaft clip; 17. Cone. Detailed Implementation

[0015] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0016] like Figure 1 , Figure 2 As shown, this anti-scaling valve core includes a valve body 1, a valve stem 2, and several sealing rings 3. A locking cap 4 is provided on the top of the valve body 1. Both the locking cap 4 and the valve body 1 have through holes 1 5 and 2 6 that cooperate with the valve stem 2. The valve stem 2 passes through the through hole 1 5 of the locking cap 4 and the through hole 2 6 in the center of the valve body 1 in sequence, so that the valve stem 2 can move along the through hole 1 5 and the through hole 2 6.

[0017] A number of annular grooves 7 for installing sealing rings 3 are provided on the through hole located on the valve body 1. The sealing rings 3 are embedded in the annular grooves 7 and cooperate with the outside of the valve stem 2 to form a multi-layer sealing structure.

[0018] An installation groove 8 is provided at the lower part of the valve body 1 where it meets the valve stem 2. An anti-scalding ring 9 is provided in the installation groove 8. The anti-scalding ring 9 is divided into two layers. One layer is located in the installation groove 8, and the other layer extends downward from the groove opening of the installation groove 8 into an arc-shaped anti-scalding layer 10. The anti-scalding ring 9 located in the installation groove 8 can effectively cooperate with the installation groove 8, so that the anti-scalding ring 9 is fixed and limited.

[0019] A sealing gasket 11 is provided at the lower end of the valve stem 2, and a pressure plate 12 is embedded at the upper end of the sealing gasket 11. After the valve body 1 and the locking cap 4 cooperate with each other, a movable groove 13 is opened between them. A stainless steel spring 14 is provided in the movable groove 13. The stainless steel spring 14 is sleeved on the valve stem 2, and a stainless steel clip 15 is provided between the spring groove and the upper part of the spring groove. The stainless steel clip has a closed-loop structure, so there is no risk of it falling off after it is inserted.

[0020] A stainless steel shaft clip 16 is provided below the sealing gasket 11, the valve stem 2 passes through the sealing gasket 11, and a cone 17 is provided below the sealing gasket 11 for engaging and limiting the movement of the stainless steel shaft clip 16.

[0021] Preferably, the locking cap 4 is made of plastic to reduce production costs.

[0022] Preferably, both the anti-scaling ring 9 and the anti-scaling surface are made of plastic. Because the surface of plastic is smooth, it does not easily adsorb minerals or form deposits. In addition, plastic materials do not react chemically in water like metals to form insoluble substances, thus preventing the formation of scale.

[0023] Preferably, there are two sealing rings 3, which are arranged coaxially in an upward and downward direction. The multi-layer sealing structure effectively increases the sealing performance.

[0024] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0025] Although this document frequently uses terms such as valve body 1, valve stem 2, sealing ring 3, locking cap 4, through hole one 5, through hole two 6, annular groove 7, mounting groove 8, anti-scaling ring 9, anti-scaling layer 10, sealing gasket 11, pressure plate 12, movable groove 13, stainless steel spring 14, stainless steel clip 15, stainless steel shaft clip 16, and cone 17, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A scale-resistant valve core, comprising a valve body (1), a valve stem (2), and a plurality of sealing rings (3), characterized in that, A locking cap (4) is provided on the top of the valve body (1). Both the locking cap (4) and the valve body (1) are provided with a through hole 1 (5) and a through hole 2 (6) that cooperate with the valve stem (2). The valve stem (2) is inserted into the through hole 1 (5) of the locking cap (4) and the through hole 2 (6) at the center of the valve body (1) in sequence. A number of annular grooves (7) for installing sealing rings (3) are provided on the through hole located on the valve body (1). The sealing rings (3) are embedded in the annular grooves (7) and cooperate with the outside of the valve stem (2) to form a multi-layer sealing structure. An installation groove (8) is provided at the lower part of the valve body (1) where it meets the valve stem (2). An anti-scalding ring (9) is provided in the installation groove (8). The anti-scalding ring (9) is divided into two layers. One layer is located in the installation groove (8), and the other layer extends downward from the groove opening of the installation groove (8) into an arc-shaped anti-scalding layer (10).

2. The anti-scaling valve core according to claim 1, characterized in that, The valve stem (2) is provided with a sealing gasket (11) at its lower end, and a pressure plate (12) is embedded at the upper end of the sealing gasket (11).

3. The anti-scaling valve core according to claim 1, characterized in that, The valve body (1) and the locking cap (4) are engaged with each other, and a movable groove (13) is provided between them. A stainless steel spring (14) is provided in the movable groove (13). The stainless steel spring (14) is sleeved on the valve stem (2), and a stainless steel flower clip (15) is provided between the upper part of the spring groove.

4. The anti-scaling valve core according to claim 2, characterized in that, A stainless steel shaft clip (16) is provided below the sealing gasket (11), the valve stem (2) passes through the sealing gasket (11), and a cone (17) is provided below the sealing gasket (11) for engaging and limiting with the stainless steel shaft clip (16).

5. The anti-scaling valve core according to claim 1, characterized in that, The sealing ring (3) consists of two rings, which are arranged coaxially in the upper and lower directions.

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