Sealing ring with fireproof performance

Abstract

The utility model relates to the technical field of sealing rings, and discloses a sealing ring with fireproof performance, which solves the problem that the sealing performance of the existing rubber sealing ring is easy to become poor at high temperature, and comprises a metal ring, a supporting ring is fixedly arranged at the top of the metal ring, and an annular frame is fixedly arranged at the top of the supporting ring. A movable ring is movably sleeved with the annular frame, a top ring is fixedly mounted at the top of the movable ring, a first fireproof layer is arranged at the top end of the top ring, a rubber pad is arranged at the top of the first fireproof layer, and an elastic mechanism is arranged at the top of the metal ring; according to the utility model, through the cooperation among the top ring, the movable ring and the annular frame, when the rubber pad is extruded, the side block slides in the side groove, and through the cooperation among the movable rod, the guide block and the guide column, the spring deforms, so that the rubber pad can be tightly attached to the contact surface under the action of the elastic force of the spring; therefore, the sealing performance of the whole sealing ring can be guaranteed conveniently.

Description

Technical Field

[0001] The utility model belongs to the technical field of sealing rings, in particular to a sealing ring with fireproof performance. Background Art

[0002] The sealing ring should have good sealing performance within the working pressure and a certain temperature range, and the sealing performance should be automatically improved as the pressure increases. It is generally made of chloroprene rubber, EPDM rubber, silicone rubber, rubber and plastic composite materials with excellent aging resistance, so that it has strong corrosion resistance, is not easy to age, has a long working life, good wear resistance, and can automatically compensate to a certain extent after wear.

[0003] After long-term use, the rubber sealing ring will accelerate its aging and deformation due to high temperature. After deformation, the rubber sealing ring will not fit tightly with the contact surface due to the lack of supporting structure, causing the rubber sealing ring to lose its original functionality and resulting in poor sealing. Utility Model Content

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a sealing ring with fireproof performance, which effectively solves the problem that the current rubber sealing ring is prone to poor sealing performance at high temperatures.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a sealing ring with fireproof performance, comprising a metal ring, a support ring fixedly mounted on the top of the metal ring, an annular frame fixedly mounted on the top of the support ring, a movable ring movably sleeved inside the annular frame, a top ring fixedly mounted on the top of the movable ring, a first fireproof layer provided on the top of the top ring, a rubber pad provided on the top of the first fireproof layer, and an elastic mechanism provided on the top of the metal ring;

[0006] The elastic mechanism includes a guide column fixed to the outside of the support ring, a top block fixedly connected to the end of the guide column away from the support ring, the top block fixed to the top of the metal ring, a guide block movably sleeved on the outside of the guide column, a spring fixedly connected between the guide block and the top block, and the spring sleeved on the outside of the guide column.

[0007] Preferably, the top of the guide block is rotatably connected to a movable rod, the outer side of the movable ring is fixedly connected to a side block, and one end of the movable rod away from the guide block is rotatably connected to the side block.

[0008] Preferably, a side groove is provided on the outer side of the annular frame, and the side blocks are slidably installed inside the side groove.

[0009] Preferably, a third fireproof layer is provided on the inner side of the support ring, and a second fireproof layer is provided on the inner side of the annular frame.

[0010] Preferably, the first fireproof layer, the second fireproof layer and the third fireproof layer are all made of ceramic fiber material.

[0011] Preferably, an inner ring is fixedly mounted on the inner side of the metal ring, and a plurality of heat dissipation holes are evenly arranged on the inner ring.

[0012] Preferably, a rubber ring 1 and a rubber ring 2 are fixedly connected to the bottom of the top ring, the rubber ring 1 is located on the inner side of the movable ring, and the rubber ring 2 is located on the outer side of the movable ring.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] (1) In the present invention, the top ring, the movable ring and the annular frame cooperate to cause the side blocks to slide in the side grooves when the rubber pad is squeezed, and the movable rod, the guide block and the guide column cooperate to cause the spring to deform, and then the rubber pad can be closely fitted to the contact surface under the action of the spring elastic force, thereby ensuring the sealing performance of the entire sealing ring;

[0015] (2) The new type facilitates heat dissipation through the cooperation between the inner ring and the heat dissipation hole, thereby improving the heat dissipation performance of the entire sealing ring, and can ensure the sealing between the movable ring and the annular frame through the action of the rubber ring 1 and the rubber ring 2, and can ensure that the entire sealing ring can maintain a stable structure and performance in a high temperature environment through the cooperation between the first fireproof layer, the second fireproof layer and the third fireproof layer, thereby improving the fireproof performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0017] In the attached figure:

[0018] Figure 1 This is a schematic diagram of the structure of the sealing ring with fireproof performance of the utility model;

[0019] Figure 2 This is a schematic diagram of the ring frame structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the disassembled structure of the annular frame and rubber pad of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the movable ring of the utility model;

[0022] Figure 5 This is a schematic diagram of the elastic mechanism structure of the utility model.

[0023] In the figure: 1. Metal ring; 2. Elastic mechanism; 201. Guide column; 202. Guide block; 203. Spring; 204. Top block; 205. Movable rod; 3. Rubber pad; 4. Heat dissipation hole; 5. Inner ring; 6. Ring frame; 7. Support ring; 8. Side block; 9. Side groove; 10. Movable ring; 11. First fireproof layer; 12. Second fireproof layer; 13. Third fireproof layer; 14. Rubber ring one; 15. Rubber ring two; 16. Top ring. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0025] Embodiment 1, by Figure 1-4 The utility model includes a metal ring 1, a support ring 7 is fixedly installed on the top of the metal ring 1, an annular frame 6 is fixedly installed on the top of the support ring 7, a movable ring 10 is movably sleeved inside the annular frame 6, a top ring 16 is fixedly installed on the top of the movable ring 10, a first fireproof layer 11 is provided on the top of the top ring 16, a rubber pad 3 is provided on the top of the first fireproof layer 11, an elastic mechanism 2 is provided on the top of the metal ring 1, a third fireproof layer 13 is provided on the inner side of the support ring 7, a second fireproof layer 12 is provided on the inner side of the annular frame 6, the first fireproof layer 11, the second fireproof layer 12 and the third fireproof layer 13 are all made of ceramic fiber material, an inner ring 5 is fixedly installed on the inner side of the metal ring 1, and a plurality of heat dissipation holes 4 are evenly provided on the inner ring 5;

[0026] When in use, a first fireproof layer 11 is first set between the rubber pad 3 and the top ring 16, and a third fireproof layer 13 and a second fireproof layer 12 are respectively set on the inner sides of the support ring 7 and the annular frame 6. The first fireproof layer 11, the second fireproof layer 12 and the third fireproof layer 13 are all made of ceramic fiber material, ensuring that the entire sealing ring can maintain a stable structure and performance in a high temperature environment, thereby improving the fireproof performance. At the same time, the inner ring 5 is fixed on the inner side of the metal ring 1, and a plurality of heat dissipation holes 4 are evenly provided on the inner ring 5, so that the heat on the sealing ring is discharged from the heat dissipation holes 4, thereby improving the heat dissipation performance of the entire sealing ring.

[0027] Specifically, by Figure 1-5It is given that the elastic mechanism 2 includes a guide column 201 fixed to the outside of the support ring 7, and the end of the guide column 201 away from the support ring 7 is fixedly connected to the top block 204, and the top block 204 is fixed to the top of the metal ring 1, and the outer side of the guide column 201 is movably sleeved with a guide block 202, and a spring 203 is fixedly connected between the guide block 202 and the top block 204, and the spring 203 is sleeved on the outer side of the guide column 201, and the top of the guide block 202 is rotatably connected to a movable rod 205, and the outer side of the movable ring 10 is fixedly connected to the side block 8, and the end of the movable rod 205 away from the guide block 202 is rotatably connected to the side block 8, the outer side of the annular frame 6 is provided with a side groove 9, and the side block 8 is slidably installed in the inside of the side groove 9, and the bottom of the top ring 16 is fixedly connected to a rubber ring 14 and a rubber ring 2 15, and the rubber ring 14 is located on the inner side of the movable ring 10, and the rubber ring 2 15 is located on the outer side of the movable ring 10;

[0028] When in use, first when the contact surface squeezes the rubber pad 3, the top ring 16 is driven to move, and the movable ring 10 is driven to move along the annular frame 6. At the same time, the side block 8 slides in the side groove 9, and then the guide block 202 is driven to slide along the guide column 201 through the movable rod 205. At this time, the spring 203 is deformed, and under the action of the elastic force of the spring 203, the rubber pad 3 is tightly fitted to the contact surface, ensuring the sealing performance of the entire sealing ring, until the rubber ring 14 and the rubber ring 2 15 are both in contact with the top of the annular frame 6, and finally the sealing between the movable ring 10 and the annular frame 6 is ensured.

Claims

1. A sealing ring with fireproof performance, comprising a metal ring (1), characterized in that: A support ring (7) is fixedly mounted on the top of the metal ring (1), an annular frame (6) is fixedly mounted on the top of the support ring (7), a movable ring (10) is movably sleeved inside the annular frame (6), a top ring (16) is fixedly mounted on the top of the movable ring (10), a first fireproof layer (11) is provided on the top of the top ring (16), a rubber pad (3) is provided on the top of the first fireproof layer (11), and an elastic mechanism (2) is provided on the top of the metal ring (1); The elastic mechanism (2) comprises a guide column (201) fixed to the outside of the support ring (7); an end of the guide column (201) away from the support ring (7) is fixedly connected to a top block (204); the top block (204) is fixed to the top of the metal ring (1); a guide block (202) is movably sleeved on the outside of the guide column (201); a spring (203) is fixedly connected between the guide block (202) and the top block (204); and the spring (203) is sleeved on the outside of the guide column (201).

2. The fireproof sealing ring according to claim 1, characterized in that: The top of the guide block (202) is rotatably connected to a movable rod (205), the outer side of the movable ring (10) is fixedly connected to a side block (8), and one end of the movable rod (205) away from the guide block (202) is rotatably connected to the side block (8).

3. The fireproof sealing ring according to claim 1, characterized in that: The outer side of the annular frame (6) is provided with a side groove (9), and the side block (8) is slidably installed inside the side groove (9).

4. The fireproof sealing ring according to claim 1, characterized in that: A third fireproof layer (13) is provided on the inner side of the support ring (7), and a second fireproof layer (12) is provided on the inner side of the annular frame (6).

5. The fireproof sealing ring according to claim 1, characterized in that: The first fireproof layer (11), the second fireproof layer (12) and the third fireproof layer (13) are all made of ceramic fiber material.

6. The fireproof sealing ring according to claim 1, characterized in that: An inner ring (5) is fixedly mounted on the inner side of the metal ring (1), and a plurality of heat dissipation holes (4) are evenly arranged on the inner ring (5).

7. The fireproof sealing ring according to claim 1, characterized in that: The bottom of the top ring (16) is fixedly connected with a rubber ring 1 (14) and a rubber ring 2 (15), wherein the rubber ring 1 (14) is located on the inner side of the movable ring (10) and the rubber ring 2 (15) is located on the outer side of the movable ring (10).

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