A core diaphragm of a four-way valve

Abstract

The utility model relates to a core diaphragm of four-way valve, including rubber injection moulding's core diaphragm body, 4 through -holes are arranged in the middle interval of core diaphragm body and set up the installation bending adaptation groove structure outside core diaphragm body, the installation bending adaptation groove structure includes the segmented groove body structure on the core diaphragm body of being arranged in the inside of through -hole and the end butt joint groove body structure of being arranged in the both ends of core diaphragm body, the segmented groove body structure includes the longitudinal bending groove on the core diaphragm body and the group interval segmented convex edge body of being arranged in the outside of longitudinal bending groove, each sets up butt joint edge table on the core diaphragm body of being located on the upper and lower end outer rim of through -hole. The installation bending adaptation groove structure of the core diaphragm of four-way valve is connected with the stable valve body, with the built-in structure of valve body can accurate butt joint, just can realize the quick disassembly and replacement of core diaphragm and valve body between the operation of core diaphragm and valve body quite convenient, save the effort. Meanwhile, the core diaphragm of installation bending adaptation groove structure can realize ring body whole pressure connection, ensures the sealing and prevents the water leakage performance.

Description

Technical Field

[0001] This utility model relates to the field of rubber seals, and in particular to a diaphragm for a four-way valve. Background Technology

[0002] A diaphragm valve is a flexible diaphragm or a combination of diaphragms installed inside the valve body and valve cover. Its closing element is a compression device connected to the diaphragm. The valve seat can be weir-shaped or a pipe wall with a straight flow channel. The advantage of diaphragm valves is that their operating mechanism is separated from the medium passage, which not only ensures the purity of the working medium, but also prevents the possibility of the medium in the pipeline impacting the working parts of the operating mechanism.

[0003] The existing diaphragm cores suffer from low assembly precision when connected to four-way valves due to the complex valve body structure, further impacting assembly efficiency and product lifespan. Furthermore, cracks are prone to occur at the bending holes during the bending assembly process. Utility Model Content

[0004] The purpose of this invention is to provide a diaphragm for a four-way valve, which solves the problems of unstable installation, inaccurate docking, and short service life of existing four-way valve diaphragms.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a core diaphragm of a four-way valve, comprising a core diaphragm body formed by rubber injection molding, wherein the core diaphragm body is provided with four through holes at intervals and an installation bending adapter groove structure is provided on the outside of the core diaphragm body, wherein the installation bending adapter groove structure includes a segmented groove structure provided on the core diaphragm body inside the through holes and an end docking groove structure provided at both ends of the core diaphragm body, wherein the segmented groove structure includes a longitudinal bending groove provided on the core diaphragm body and a set of spaced segmented protrusions provided on the outside of the longitudinal bending groove, and a docking edge is provided on the core diaphragm body located at the outer edge of the upper and lower ends of the through holes.

[0006] A first end-separating V-groove is set at the middle section of each docking platform.

[0007] A second end-separating V-groove is provided on the core film at each of the upper and lower outer edges between adjacent segmented convex bodies.

[0008] A third end-separating V-groove is provided on the core film at the upper and lower outer edges of the longitudinal bending groove.

[0009] The inner surface of the through hole is a tapered surface.

[0010] The aforementioned end docking groove structure includes docking trapezoidal platforms disposed on the outside of the core membrane sheet.

[0011] The beneficial effects of this utility model are as follows: The diaphragm of this four-way valve has a secure connection with the valve body via a bending adapter groove structure, allowing for precise alignment with the valve body's internal structure. This enables quick and easy assembly and disassembly of the diaphragm, as well as convenient and labor-saving diaphragm replacement. Furthermore, the bending adapter groove structure allows for a tight, integrated ring connection, ensuring a secure seal and preventing leakage. The bending adapter groove structure also reduces material oxidation and cracking.

[0012] The present invention will be described in more detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 for Figure 1 Top view.

[0015] Figure 3 for Figure 1 A three-dimensional image.

[0016] Figure 4 This is an assembly diagram of the present invention.

[0017] Figure 5 for Figure 1 AA sectional view.

[0018] Figure 6 for Figure 2 Sectional view along direction B.

[0019] In the figure: 1. Core membrane body, 2. Through hole, 3. Longitudinal bending groove, 4. Interval segmented convex edge body, 5. Dating platform, 6. First end dividing V groove, 7. Second end dividing V groove, 8. Third end dividing V groove, 9. Inner surface, 10. Dating trapezoidal platform. Detailed Implementation

[0020] The terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end" used in the application text to indicate the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing the present invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example 1, as Figure 1-6 As shown, a diaphragm for a four-way valve includes a rubber injection-molded diaphragm body 1. The diaphragm body has four through holes 2 spaced apart in the middle and an installation bending adapter groove structure on the outside of the diaphragm body. The installation bending adapter groove structure includes a segmented groove structure on the diaphragm body inside the through holes and an end docking groove structure at both ends of the diaphragm body. The segmented groove structure includes a longitudinal bending groove 3 on the diaphragm body and a set of spaced segmented protrusions 4 on the outside of the longitudinal bending groove. A docking platform 5 is provided on the diaphragm body at the outer edges of the upper and lower ends of the through holes.

[0022] A first end-separating V-groove 6 is set at the middle section of each docking platform.

[0023] A second end-separating V-groove 7 is provided on the core film at each of the upper and lower outer edges between adjacent segmented convex bodies.

[0024] A third end-separating V-groove 8 is provided on the core film at the upper and lower outer edges of the longitudinal bending groove.

[0025] The inner surface 9 of the through hole is an oblique conical surface.

[0026] The end docking groove structure includes docking trapezoidal platforms 10 provided on the outside of the core membrane sheet.

[0027] The diaphragm of this four-way valve features a bent-fit groove structure that securely connects to the valve body and precisely aligns with the valve body's internal structure. This allows for quick and easy installation and replacement of the diaphragm, making diaphragm replacement convenient and labor-saving. Furthermore, the bent-fit groove structure ensures a tight, integrated ring connection, guaranteeing a seal and preventing leaks. It also reduces material oxidation and cracking.

[0028] The above embodiments are merely descriptions of preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

[0029] The parts not covered in this utility model are the same as or can be implemented using existing technologies.

Claims

1. A diaphragm sheet for a four-way valve, comprising a diaphragm sheet body injection molded from rubber and formed into a strip, characterized in that: The core membrane sheet has four through holes spaced apart and an installation bending adapter groove structure is provided on the outside of the core membrane sheet. The installation bending adapter groove structure includes a segmented groove structure on the core membrane sheet inside the through holes and an end docking groove structure at both ends of the core membrane sheet. The segmented groove structure includes a longitudinal bending groove on the core membrane sheet and a set of spaced segmented protrusions on the outside of the longitudinal bending groove. A docking platform is provided on the core membrane sheet at the outer edge of the upper and lower ends of the through holes.

2. The diaphragm of the four-way valve as described in claim 1, characterized in that: A first end-separating V-groove is set at the middle section of each docking platform.

3. The diaphragm of the four-way valve as described in claim 1, characterized in that: A second end-separating V-groove is provided on the core film at each of the upper and lower outer edges between adjacent segmented convex bodies.

4. The diaphragm of the four-way valve as described in claim 1, characterized in that: A third end-separating V-groove is provided on the core film at the upper and lower outer edges of the longitudinal bending groove.

5. The diaphragm of the four-way valve as described in claim 1, characterized in that: The inner surface of the through hole is a tapered surface.

6. The diaphragm of the four-way valve as described in claim 1, characterized in that: The aforementioned end docking groove structure includes docking trapezoidal platforms disposed on the outside of the core membrane sheet.

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