Novel flange combined sealing ring

Abstract

The utility model discloses a novel flange combined sealing ring which comprises a metal base, a groove is formed in the top of the metal base, an end cover is arranged above the metal base, a metal framework is arranged between the metal base and the end cover, one side of the metal framework is fixedly connected with a semicircular rubber ring, and the other side of the metal framework is fixedly connected with a sealing ring. The other side of the metal framework is fixedly connected with a lip-shaped sealing elastic body, and a lip-shaped groove is formed in the outer side of the lip-shaped sealing elastic body. According to the novel flange combined sealing ring, efficient sealing can be achieved through the lip-shaped sealing elastic body, the extrusion sealing mode of a pure rubber flange sealing ring (gasket) is changed into the lip-shaped sealing mode, sealing is achieved through enough pre-compression amount when no pressure exists, and when pressure exists, outward tension of the sealing lip is larger, and the sealing performance is more superior. No matter whether the groove is a standard groove or a non-standard groove, the groove can be customized under any working condition, the sealing performance is good, and the service life is longer.

Description

TECHNICAL FIELD

[0001] The utility model relates to flange sealing ring technical field especially relates to a novel flange combination sealing ring. BACKGROUND

[0002] Pure rubber flange sealing ring (pad) has the performance of resisting oil, resisting acid and alkali, resisting cold and heat, resisting aging, is generally applied in medicine, food industry, also can cut into various shapes of sealing gasket directly and use.

[0003] Pure rubber flange sealing ring (pad) is sealed by the interference of product thickness to the depth of groove, but there are technical defects: 1. some pure rubber flange sealing ring (pad) is cut out according to the shape needed with rubber plate, cannot be positioned, especially without positioning hole, especially so; 2. pure rubber flange sealing ring (pad) is sealed by the end cover through the locking screw in the axial compression sealing pad, but the degree of tightening locking screw cannot be limited and controlled, too loose, cannot guarantee that the end cover compresses the sealing pad and realizes effective sealing, too tight, easily crushes the sealing pad, makes sealing ineffective, in view of the above problems, we launch a new type of flange combination sealing ring. CONTENT OF THE UTILITY MODEL

[0004] The utility model discloses a novel flange combination sealing ring, which aims to solve the technical problems of pure rubber flange sealing ring positioning failure or sealing failure.

[0005] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A novel flange combination sealing ring, including metal seat, the top of metal seat is equipped with the groove, the top of metal seat is equipped with the end cover, the metal seat and end cover are equipped with the metal framework between, one side of metal framework is fixedly connected with semicircular rubber ring, the other side of metal framework is fixedly connected with lip seal elastomer, the outside of lip seal elastomer is equipped with lip-shaped groove.

[0007] In one preferred scheme, the top of the end cover is screw-connected with an internal hexagonal screw on one side, and a gasket is sleeved between the end cover and the metal seat and located outside the internal hexagonal screw.

[0008] In one preferred scheme, the bottom of the metal framework is provided with a vulcanization positioning hole.

[0009] In one preferred scheme, the material of the metal framework is SUS, which can be replaced by brass, alloy or other metals.

[0010] In one preferred scheme, the main material of the lip seal elastomer is silica gel, which can also be nitrile rubber, fluorine rubber or other rubber.

[0011] The novel flange combined sealing ring has the following advantages:

[0012] The lip-shaped sealing elastic body can realize efficient sealing, and the extrusion sealing form of the pure rubber flange sealing ring (pad) is changed into a lip-shaped sealing form. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 The utility model provides a novel flange combined sealing ring's section schematic view.

[0014] Figure 2 The utility model provides a novel flange combined sealing ring's metal framework schematic view.

[0015] In the drawing, 1 is a metal seat, 2 is an end cover, 3 is a groove, 4 is a metal framework, 5 is a semicircular rubber ring, 6 is a lip-shaped sealing elastic body, 7 is a lip-shaped groove, 8 is an internal hexagonal screw, 9 is a gasket, and 10 is a vulcanization positioning hole. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. The components of the embodiments of the present application described and indicated in the drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work belong to the scope of protection of the present application.

[0017] REFERENCE Figure 1 - Figure 2The utility model provides a new type flange combination sealing ring, including metal seat 1, the top of metal seat 1 is equipped with groove 3, the top of metal seat 1 is equipped with end cover 2, metal seat 1 and end cover 2 are equipped with metal framework 4 between, one side of metal framework 4 is fixedly connected with semicircular rubber ring 5, the other side of metal framework 4 is fixedly connected with lip seal elastomer 6, and lip-shaped groove 7 is formed in the outside of lip seal elastomer 6. The top of end cover 2 is connected with internal hexagonal screw 8 on one side by screw thread, and gasket 9 is sleeved between end cover 2 and metal seat 1 and located on the outside of internal hexagonal screw 8. The bottom of metal framework 4 is equipped with vulcanization positioning hole 10. The material of metal framework 4 is SUS304, and can be replaced by brass, alloy or other metal. The main material of lip seal elastomer 6 is silica gel, and can also be butyronitrile glue, fluorine glue or other rubber.

[0018] In the above technical solution, considering the problem that pure rubber flange sealing ring cannot be positioned or sealing failure, in order to solve such problems, the specific operation is as follows:

[0019] Referring to Figure 1 Figure 2 In a preferred embodiment, when in use, the sealing ring is placed inside the groove 3, and the outer diameter of the sealing ring is equal to or slightly larger than the inner wall diameter of the groove 3. By placing the sealing ring inside the groove 3, the sealing ring can be positioned in the groove 3. Then, the end cover 2 is closed, pressing the end cover 2 on the surface of the metal framework 4. Then, the internal hexagonal screws 8 are tightened until the metal framework 4 is pressed to the specified thickness. Tightening the internal hexagonal screws 8 will not thin the lip seal elastomer 6. The lip seal elastomer 6 can achieve efficient sealing, changing the extrusion sealing form of the pure rubber flange sealing ring (pad) to the lip sealing form. When there is no pressure, the sealing is achieved through sufficient pre-compression. When there is pressure, the tension of the sealing lip outward is greater, and the sealing performance is more advantageous. Whether it is a standard groove 3 or a non-standard groove 3, it can be customized regardless of the working condition. The sealing is excellent, and the service life is longer.

[0020] Working principle: when in use, the sealing ring is placed inside the groove 3, and the outer diameter of the sealing ring is equal to or slightly larger than the inner wall diameter of the groove 3. By placing the sealing ring inside the groove 3, the sealing ring can be positioned in the groove 3. Then, the end cover 2 is closed, pressing the end cover 2 on the surface of the metal framework 4. Then, the internal hexagonal screws 8 are tightened until the metal framework 4 is pressed to the specified thickness. Tightening the internal hexagonal screws 8 will not thin the lip seal elastomer 6. Thus, sealing and positioning are achieved, which can prolong the service life of the product.

[0021] ​The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto. The replacement can be a replacement of part of the structure, device, method step, or a complete technical solution. According to the technical solution and the inventive concept of the present application, equivalent replacement or change should be covered in the protection scope of the present application.

Claims

1. A novel flange combination sealing ring, comprising a metal seat (1), characterized in that: A groove (3) is provided on the top of the metal seat (1), an end cover (2) is provided above the metal seat (1), a metal frame (4) is provided between the metal seat (1) and the end cover (2), a semicircular rubber ring (5) is fixedly connected to one side of the metal frame (4), a lip-shaped sealing elastomer (6) is fixedly connected to the other side of the metal frame (4), and a lip-shaped groove (7) is provided on the outer side of the lip-shaped sealing elastomer (6).

2. The novel flange combination sealing ring according to claim 1 is characterized in that: A hexagon socket screw (8) is threadedly connected to one side of the top of the end cover (2), and a gasket (9) is sleeved between the end cover (2) and the metal seat (1) and located on the outside of the hexagon socket screw (8).

3. The novel flange combination sealing ring according to claim 1 is characterized in that: A vulcanization positioning hole (10) is provided at the bottom of the metal skeleton (4).

4. The novel flange combination sealing ring according to claim 1 is characterized in that: The material of the metal skeleton (4) is SUS304.

5. The novel flange combination sealing ring according to claim 1 is characterized in that: The material of the lip-shaped sealing elastic body (6) is silicone rubber, nitrile rubber or fluororubber.

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