Polytetrafluoroethylene sealing gasket with high sealing performance

Abstract

The utility model relates to the technical field of sealing gaskets, one embodiment of the utility model provides a high-sealing-performance polytetrafluoroethylene sealing gasket which comprises a sealing gasket body and further comprises a supporting frame, two reinforcing nets, a filling mechanism and a fixing mechanism, a cavity matched with the supporting frame is formed in the sealing gasket body, the supporting frame is arranged in the cavity, the number of the reinforcing nets is two, and the filling mechanism is arranged in the cavity. The two reinforcing nets are fixedly connected into the sealing gasket body, the filling mechanism is fixedly connected into the supporting frame and used for supporting the sealing gasket body, the fixing mechanism is arranged on the supporting frame and used for limiting the sealing gasket body, and the filling mechanism comprises a filling plate and a transverse plate. The technical problems that in the prior art, a sealing gasket deforms due to long-time extrusion or friction, the sealing performance of the sealing gasket is reduced, and the sealing effect is affected are solved.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the field of gasket technology, and more specifically, to a high-sealing polytetrafluoroethylene gasket. Background Technology

[0002] Polytetrafluoroethylene (PTFE) has many applications as a sealing material. Due to its high corrosion resistance, stable physical properties, and resistance to high and low temperatures, it has excellent sealing performance and is widely used in the petroleum, chemical, pharmaceutical, power, and steel industries. It is suitable for almost all chemical components, including water, oil, acid solutions, and alkali solutions.

[0003] After prolonged use, polytetrafluoroethylene (PTFE) gaskets are prone to deformation due to prolonged compression or friction, which can reduce their sealing performance and affect the sealing effect. Utility Model Content

[0004] To overcome the above-mentioned defects, the embodiments of this disclosure provide a high-sealing polytetrafluoroethylene gasket, which solves the technical problem in the prior art where the gasket is deformed due to long-term compression or friction, resulting in a decrease in the sealing performance of the gasket and affecting the sealing effect.

[0005] According to one aspect, at least one embodiment of the present disclosure provides a high-sealing polytetrafluoroethylene sealing gasket, including a sealing gasket body, and further including: a support frame, a reinforcing mesh, a filling mechanism, and a fixing mechanism;

[0006] The sealing gasket body has a cavity that matches the support frame, and the support frame is disposed in the cavity;

[0007] Two reinforcing meshes are provided, and both reinforcing meshes are fixedly connected to the sealing gasket body;

[0008] The filling mechanism is fixedly connected inside the support frame and is used to support the sealing gasket body;

[0009] The fixing mechanism is mounted on the support frame and is used to limit the position of the sealing gasket body.

[0010] Preferably, the filling mechanism includes: a filling plate and a cross plate;

[0011] The filling plate is provided in multiple ways, and the multiple filling plates are arranged in a circular manner inside the support frame;

[0012] Each of the filling plates has a horizontal plate fixedly connected to both sides, and multiple horizontal plates are fixedly connected to the support frame.

[0013] Furthermore, the fixing mechanism includes: a limiting ring and a semi-circular surface;

[0014] The limiting ring is provided in multiple ways, and all of the limiting rings are fixedly connected to the surface of the support frame;

[0015] The surfaces of all of the aforementioned limiting rings are semi-circular.

[0016] Furthermore, the support frame is provided with multiple through slots.

[0017] Furthermore, both of the reinforcing meshes are made of metal.

[0018] Furthermore, the plurality of the limiting rings form protrusions on the support frame, and a groove is formed between each pair of adjacent limiting rings.

[0019] Furthermore, the support frame has chamfered edges.

[0020] Furthermore, the support frame and multiple limiting rings are all made of metal.

[0021] Furthermore, the two reinforcing meshes are respectively installed on both sides of the support frame.

[0022] Furthermore, both of the reinforcing meshes have retaining rings on their circumferential surfaces.

[0023] The beneficial effects of the embodiments disclosed herein are as follows:

[0024] In this disclosure, the cooperation between the support frame, reinforcing mesh, filling mechanism and fixing mechanism facilitates the improvement of the strength and stability of the sealing gasket, effectively prevents the sealing gasket from being deformed by compression and friction, and improves the sealing effect of the sealing gasket. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0026] Figure 1 This is a schematic diagram of the overall structure in one embodiment of the present disclosure;

[0027] Figure 2 This is a cross-sectional structural diagram of one embodiment of the present disclosure;

[0028] Figure 3 This is a schematic diagram of the structure of the support frame, filling mechanism and fixing mechanism in one embodiment of the present disclosure;

[0029] Figure 4 This is a cross-sectional structural diagram of the sealing gasket body in one embodiment of the present disclosure.

[0030] In the diagram: 1. Sealing gasket body; 2. Support frame; 3. Reinforcing mesh; 4. Filler plate; 5. Horizontal plate; 6. Limiting ring; 7. Semi-circular surface; 8. Chamfer; 9. Fixing ring. Detailed Implementation

[0031] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0032] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0033] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0034] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0035] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to 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 this disclosure.

[0036] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0037] like Figures 1-4 As shown, a high-sealing polytetrafluoroethylene (PTFE) gasket according to an embodiment of this disclosure includes a gasket body 1, a support frame 2, reinforcing mesh 3, a filling mechanism, and a fixing mechanism. The circumferential surfaces of the two reinforcing meshes 3 are each provided with fixing rings 9. The two reinforcing meshes 3 are respectively disposed on both sides of the support frame 2. A chamfer 8 is provided at the edge of the support frame 2 to prevent the edge of the support frame 2 from cutting the gasket body 1 when the gasket is compressed. Both reinforcing meshes 3 are made of metal, improving the tensile strength of the gasket. Multiple through grooves are provided on the support frame 2 to reduce the weight of the gasket body 1. A cavity matching the support frame 2 is provided inside the gasket body 1, and the support frame 2 is disposed within the cavity. Two reinforcing meshes 3 are provided, both fixedly connected inside the gasket body 1. Through the cooperation between the support frame 2, reinforcing meshes 3, filling mechanism, and fixing mechanism, the strength and stability of the gasket are improved, effectively preventing deformation of the gasket due to compression and friction, and improving the sealing effect of the gasket.

[0038] The filling mechanism is fixedly connected inside the support frame 2 to support the sealing gasket body 1. The filling mechanism includes a filling plate 4 and a horizontal plate 5. There are multiple filling plates 4, which are arranged in a circular pattern inside the support frame 2. Each filling plate 4 has a horizontal plate 5 fixedly connected to both sides. The multiple horizontal plates 5 are fixedly connected to the support frame 2. The support frame 2 is supported by the filling plates 4 and the horizontal plates 5, thereby improving the compressive strength of the support frame 2.

[0039] A fixing mechanism is installed on the support frame 2 to limit the position of the sealing gasket body 1. The fixing mechanism includes a limiting ring 6 and a semi-circular surface 7. The support frame 2 and the multiple limiting rings 6 are made of metal, which improves the overall strength of the sealing gasket. The multiple limiting rings 6 form protrusions on the support frame 2, and a groove is formed between each pair of adjacent limiting rings 6 to prevent the sealing gasket from deviating when it is squeezed. There are multiple limiting rings 6, and the multiple limiting rings 6 are all fixedly connected to the surface of the support frame 2. The surface of the multiple limiting rings 6 is a semi-circular surface 7. The limiting rings 6 form grooves in the sealing gasket body 1 to fix the position of the sealing gasket when the sealing gasket body 1 is in use and prevent the sealing gasket from shifting.

[0040] Working principle: When the sealing gasket is in use, it is supported in the support frame 2 by the filling plate 4 and the horizontal plate 5, and the sealing gasket body 1 is supported by the support plate, thereby improving the pressure resistance of the sealing gasket body 1. The reinforcing mesh 3 and the fixing ring 9 are set in the sealing gasket, thereby improving the tensile strength of the sealing gasket body 1. The limiting ring 6 forms a groove in the sealing gasket body 1, which facilitates the fixing of the position of the sealing gasket when the sealing gasket body 1 is in use and prevents the sealing gasket from shifting.

[0041] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A high-sealing polytetrafluoroethylene sealing gasket, comprising a sealing gasket body (1), characterized in that, Also includes: The support frame (2) has a cavity inside the sealing gasket body (1) that matches the support frame (2), and the support frame (2) is disposed inside the cavity; Reinforcing mesh (3), two reinforcing meshes (3) are provided, and both reinforcing meshes (3) are fixedly connected inside the sealing gasket body (1); A filling mechanism is fixedly connected inside the support frame (2) and is used to support the sealing gasket body (1); A fixing mechanism is provided on the support frame (2) for limiting the sealing gasket body (1).

2. The high-sealing polytetrafluoroethylene sealing gasket according to claim 1, characterized in that, The filling mechanism includes: A plurality of filler plates (4) are provided, and the plurality of filler plates (4) are arranged in a circular pattern within the support frame (2); The horizontal plate (5) is fixedly connected to both sides of each of the filling plates (4), and the multiple horizontal plates (5) are fixedly connected to the support frame (2).

3. The high-sealing polytetrafluoroethylene sealing gasket according to claim 2, characterized in that, The fixing mechanism includes: A plurality of limiting rings (6) are provided, and the plurality of limiting rings (6) are fixedly connected to the surface of the support frame (2); The surfaces of the plurality of limiting rings (6) are all semi-circular (7).

4. The high-sealing polytetrafluoroethylene sealing gasket according to claim 3, characterized in that, The support frame (2) has multiple through slots.

5. A high-sealing polytetrafluoroethylene sealing gasket according to claim 4, characterized in that, Both of the reinforcing meshes (3) are made of metal.

6. A high-sealing polytetrafluoroethylene sealing gasket according to claim 5, characterized in that, The plurality of the limiting rings (6) form protrusions on the support frame (2), and a groove is formed between each pair of adjacent limiting rings (6).

7. A high-sealing polytetrafluoroethylene sealing gasket according to claim 6, characterized in that, The support frame (2) has a chamfer (8) at its edge.

8. A high-sealing polytetrafluoroethylene sealing gasket according to claim 7, characterized in that, The support frame (2) and multiple limiting rings (6) are all made of metal.

9. A high-sealing polytetrafluoroethylene sealing gasket according to claim 8, characterized in that, The two reinforcing meshes (3) are respectively arranged on both sides of the support frame (2).

10. A high-sealing polytetrafluoroethylene sealing gasket according to claim 9, characterized in that, Both of the reinforcing meshes (3) have fixing rings (9) on their circumferential surfaces.

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