Dynamic sealing gasket of multi-way valve

Abstract

The utility model discloses a multi-way valve dynamic sealing gasket which comprises an inner lining layer, inner lining convex ribs, an outer lining layer, outer lining convex ribs and slope chamfers, the outer lining layer is fixedly connected outside the inner lining layer, a plurality of through holes are respectively arranged on the inner lining layer and the outer lining layer, the inner lining convex ribs are arranged on the inner sides of the through holes in a protruding mode and located on the inner lining layer, and the slope chamfers are arranged on the outer lining convex ribs. Outer lining convex ribs are arranged in the through holes and located on the outer lining layer in a protruding mode, and a slope chamfer is arranged on the outer ring of the top of the outer lining layer. The novel structure is adopted, the inner lining layer and the outer lining layer which are made of soft rubber in an injection molding mode are arranged, the inner lining protruding ribs and the outer lining protruding ribs are further arranged, sealing and abrasion resistance between the inner lining layer and the valve element in the rotating process can be guaranteed, meanwhile, the leakage performance of other positions can be guaranteed, and the novel ball valve is scientific and reasonable in structure, convenient to use, economical and practical. The use performance is good, the manufacturing cost is low and the practicability is high.

Description

Technical Field

[0001] The utility model relates to a sealing pad, in particular to a dynamic sealing pad for a multi-way valve. Background Art

[0002] A sealing gasket needs to be installed in the multi-way valve. The sealing gasket must ensure the sealing between the inner lining and the valve core during rotational movement, and must also be wear-resistant. While rotating at a certain angle, it must ensure the leakage performance at the pipe mouth. The outer lining and the multi-way valve housing are relatively still, and the leakage performance between the valve core and the pipe mouth must be ensured. The existing sealing gasket has an unreasonable structure, is not wear-resistant, and has poor sealing performance. For this reason, we propose a dynamic sealing gasket for a multi-way valve. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a dynamic sealing pad for a multi-way valve, which solves the problems of unreasonable structure, poor wear resistance and poor sealing performance of the existing sealing pad.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions: a multi-way valve dynamic sealing gasket, comprising an inner lining layer, an inner lining rib, an outer lining layer, an outer lining rib and a slope chamfer, the inner lining layer is fixedly connected to the outer lining layer on the outside, and a plurality of through holes are respectively opened on the inner lining layer and the outer lining layer, the inner side of the through hole is provided with an inner lining rib protruding from the inner lining layer, the inner side of the through hole is provided with an outer lining rib protruding from the outer lining layer, and a slope chamfer is provided on the top outer ring of the outer lining layer.

[0005] Based on the above solution, the inner lining layer and the outer lining layer are formed by injection molding.

[0006] Based on the above solution, the inner lining layer is made of POK+PTFE natural material, and the outer lining layer is made of TPU material.

[0007] Compared with the prior art, the utility model has the following beneficial effects: a multi-way valve dynamic sealing gasket adopts a new structure, is provided with an inner lining layer and an outer lining layer made of soft rubber injection molding, and is also provided with inner lining convex ribs and outer lining convex ribs, which can not only ensure the sealing between the inner lining layer and the valve core during rotational movement, but also is wear-resistant, and can also ensure the leakage performance at other positions. The utility model has a scientific and reasonable structure, good performance, low production cost and strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 This is a structural schematic diagram of a dynamic sealing gasket for a multi-way valve of the utility model;

[0009] Figure 2 This is a schematic diagram of the external structure of a multi-way valve dynamic sealing gasket installed in a multi-way valve housing according to the utility model;

[0010] Figure 3 This is a cross-sectional view of a multi-way valve dynamic sealing gasket installed in a multi-way valve housing according to the utility model.

[0011] The numbers in the figure are: 1-inner lining, 2-inner lining rib, 3-outer lining, 4-outer lining rib, 5-slope chamfer, 6-multi-way valve housing, 7-valve core. DETAILED DESCRIPTION

[0012] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0013] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0014] Reference Figures 1 to 3 It can be seen that: a dynamic sealing gasket for a multi-way valve comprises an inner lining layer 1, an inner lining rib 2, an outer lining layer 3, an outer lining rib 4 and a slope chamfer 5, the inner lining layer 1 is fixedly connected to the outer lining layer 3 on the outside, and a plurality of through holes are respectively opened on the inner lining layer 1 and the outer lining layer 3, the inner side of the through hole is provided with an inner lining rib 2 protruding from the inner lining layer 1, the inner lining rib 2 and the valve core 7 are interference fit to play a sealing role, the inner side of the through hole is provided with an outer lining rib 4 protruding from the outer lining layer 3, the outer lining rib 4 and the multi-way valve housing 6 are interference fit to play a sealing role, thereby ensuring the sealing performance between the valve core 7 and the pipeline on the multi-way valve housing 6, and a slope chamfer 5 is provided on the top outer ring of the outer lining layer 3, the slope chamfer 5 facilitates the insertion of the sealing gasket and the valve core 7 into the multi-way valve housing 6.

[0015] The inner lining layer 1 and the outer lining layer 3 are formed by injection molding, and injection molding is convenient for mass production and has low production cost; the inner lining layer 1 is made of POK+PTFE natural material, and the outer lining layer 3 is made of TPU material. TPU material has good flexibility and is easy to install, and also has good sealing performance.

[0016] Principles and advantages of the utility model: a dynamic sealing gasket for a multi-way valve, when in use, the sealing gasket is installed in the multi-way valve housing 6, the valve core 7 is installed in the inner lining layer 1, an inner lining layer 1 made of POK+PTFE natural material injection molding and an outer lining layer 3 made of TPU material injection molding are provided, and inner lining convex ribs 2 and outer lining convex ribs 4 are also provided, which can not only ensure the sealing during the rotational movement between the inner lining layer 1 and the valve core 7, but also be wear-resistant, and at the same time, during the rotational movement between the inner lining layer 1 and the valve core 7, the leakage performance at the pipe mouth can be guaranteed, the outer lining layer 3 and the multi-way valve housing 6 are relatively still, and the leakage performance between the valve core 7 and the pipe mouth can be guaranteed. The utility model has a scientific and reasonable structure, a low production cost, and is suitable for popularization and use.

[0017] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-way valve dynamic sealing gasket, comprising an inner lining layer (1), an inner lining rib (2), an outer lining layer (3), an outer lining rib (4) and a slope chamfer (5), characterized in that: The outer lining layer (3) is fixedly connected to the outer lining layer (1) on the outside, and a plurality of through holes are respectively provided on the inner lining layer (1) and the outer lining layer (3). An inner lining rib (2) is protruded from the inner lining layer (1) on the inner side of the through hole, and an outer lining rib (4) is protruded from the outer lining layer (3) on the inner side of the through hole. A slope chamfer (5) is provided on the outer ring of the top of the outer lining layer (3).

2. A multi-way valve dynamic sealing gasket according to claim 1, characterized in that: The inner lining layer (1) and the outer lining layer (3) are formed by injection molding.

3. A multi-way valve dynamic sealing gasket according to claim 1, characterized in that: The inner lining layer (1) is made of POK+PTFE natural material, and the outer lining layer (3) is made of TPU material.

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