Fluororubber O-shaped sealing ring

Abstract

The utility model belongs to the technical field of fluororubber sealing rings, and discloses a fluororubber O-shaped sealing ring which comprises a sealing outer ring, a sealing inner ring is arranged in the sealing outer ring, the sealing inner ring is movably connected with the sealing outer ring, a movable ring is fixed on the inner side of the sealing outer ring, a movable groove is formed in the outer side of the sealing inner ring, and a sealing ring is arranged in the movable groove. And the movable ring is movably connected with the movable groove, and the sealing outer ring and the sealing inner ring can rotate through connection of the movable ring and the movable groove, so that when the whole sealing ring is installed in a sealing environment needing rotation, the friction force between the whole sealing ring and an installation component is greatly reduced, the service life of the sealing ring is prolonged, and the practicability of the sealing ring is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fluororubber sealing rings, in particular to a fluororubber O-type sealing ring. Background Art

[0002] The valve is a control component in the pipeline fluid delivery system. It is used to change the passage section and the flow direction of the medium. It has the functions of diversion, cut-off, regulation, throttling, non-return, diversion or overflow pressure relief. The valve is often inseparable from the sealing ring. The sealing method currently adopted is to put two sealing rings made of fluororubber on the bearing that needs to be sealed. However, the existing fluororubber sealing rings used in valves have weak pressure resistance and are easily damaged after being impacted by strong pressure, resulting in valve leakage, weak explosion-proof ability, and poor practicality.

[0003] For example, the utility model with announcement number CN219345472U relates to the technical field of fluororubber sealing rings, specifically a fluororubber sealing ring, including a first ring body and a second ring body that are mutually abuttingly connected, characterized in that: a first solid block is fixedly connected to one side of the first ring body, a first hollow block is fixedly connected to one side of the first solid block, first grooves are arranged on both sides of the first solid block, two second solid blocks are fixedly connected to one side of the second ring body, the first hollow block is located between the two second solid blocks, and second grooves are arranged on the opposite sides of the two second solid blocks. The utility model increases the contact area between the two fluororubber sealing rings due to deformation caused by mutual extrusion of the two fluororubber sealing rings, thereby improving the sealing between the two fluororubber sealing rings.

[0004] In the process of implementing this application, it was found that the technology has the following problems: the fluororubber sealing ring cannot be rotated after extrusion, and when the existing sealing ring is used in a situation where rotation is required, long-term use will cause friction damage to the sealing ring, affecting the sealing quality.

[0005] For this reason, a fluororubber O-type sealing ring is proposed. Utility Model Content

[0006] The purpose of the utility model is to solve the problem that the fluororubber sealing ring cannot be rotated after being extruded, and when the existing sealing ring is used in a situation where rotation is required, the sealing ring will be damaged by friction for a long time, thereby affecting the sealing quality. The utility model provides a fluororubber O-type sealing ring.

[0007] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0008] A fluororubber O-type sealing ring comprises a sealing outer ring, a sealing inner ring is arranged inside the sealing outer ring, and the sealing inner ring is movably connected to the sealing outer ring, a movable ring is fixed on the inner side of the sealing outer ring, a movable groove is opened on the outer side of the sealing inner ring, and the movable ring is movably connected to the movable groove.

[0009] Furthermore, a limiting groove is provided in the movable groove, a limiting ring is provided on the inner side of the movable ring, and the limiting ring is movably connected to the limiting groove.

[0010] By adopting the above technical solution, the role of the limiting ring and the limiting groove is to facilitate the rapid positioning between the sealing outer ring and the sealing inner ring.

[0011] Furthermore, a locking groove is provided on the surface of the sealing inner ring, and the locking groove is axially symmetrical with respect to the sealing inner ring.

[0012] By adopting the above technical solution, the function of the locking groove is that when the top surface or bottom surface of the sealing inner ring is squeezed, the sealing inner ring can deform into the locking groove and fit tightly with the inner side of the sealing outer ring, thereby enhancing the overall sealing of the sealing ring.

[0013] Furthermore, the top surface and the bottom surface of the sealing inner ring are respectively provided with pressing rings, and the pressing rings are in an axisymmetric structure with respect to the sealing inner ring.

[0014] By adopting the above technical solution, the function of the pressing ring is to facilitate the external application of pressure to the sealing inner ring.

[0015] Furthermore, positioning blocks are evenly arranged on the outer side of the sealing outer ring and the inner side of the sealing inner ring.

[0016] By adopting the above technical solution, the role of the positioning block is to facilitate the positioning and fixing between the sealing outer ring and the sealing inner ring and the installation component.

[0017] Furthermore, the sealing outer ring, the sealing inner ring and the pressing ring are all made of fluororubber by thermoplasticization.

[0018] By adopting the above technical solution, fluororubber can also be compounded with other high-performance materials (such as carbon fiber, silicone rubber, etc.) to improve the strength, wear resistance and high temperature resistance of the sealing ring.

[0019] The beneficial effects of the utility model are as follows:

[0020] The utility model provides a movable ring on the inner side of the sealing outer ring and a movable groove on the outer side of the sealing inner ring, so that the sealing outer ring and the sealing inner ring can be connected and rotated through the movable ring and the movable groove. When the sealing ring is installed as a whole in a sealing environment that needs to be rotated, the friction between the sealing ring as a whole and the installation components is greatly reduced, the service life of the sealing ring is extended, and the practicability of the sealing ring is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 It is an overall cross-sectional view of the utility model;

[0023] Figure 3 It is an exploded view of the overall structure of the utility model;

[0024] Figure 4 It is a cross-sectional view of the sealing outer ring of the utility model;

[0025] Figure 5 It is a cross-sectional view of the sealing inner ring of the utility model.

[0026] Figure numerals: 1. Sealing outer ring; 2. Sealing inner ring; 3. Positioning block; 4. Pressing ring; 5. Movable groove; 6. Limiting ring; 7. Movable ring; 8. Limiting groove; 9. Locking groove. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0030] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, 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 cannot be understood as a limitation on the present invention.

[0031] like Figures 1 to 5 As shown, it includes a sealing outer ring 1, a sealing inner ring 2 is arranged inside the sealing outer ring 1, and the sealing inner ring 2 is movably connected to the sealing outer ring 1, a movable ring 7 is fixed on the inner side of the sealing outer ring 1, a movable groove 5 is opened on the outer side of the sealing inner ring 2, and the movable ring 7 is movably connected to the movable groove 5.

[0032] A movable groove 5 is provided on the outer side of the sealing inner ring 2, so that the sealing outer ring 1 and the sealing inner ring 2 can be rotated by connecting with the movable ring 7 and the movable groove 5. When the sealing ring is installed as a whole in a sealing environment that needs to be rotated, the friction between the sealing ring as a whole and the installation parts is greatly reduced, thereby extending the service life of the sealing ring and improving the practicability of the sealing ring.

[0033] A limiting groove 8 is provided in the movable groove 5, a limiting ring 6 is provided on the inner side of the movable ring 7, and the limiting ring 6 is movably connected to the limiting groove 8, a locking groove 9 is provided on the surface of the sealing inner ring 2, and the locking groove 9 is axially symmetrical with respect to the sealing inner ring 2, and pressing rings 4 are respectively provided on the top and bottom surfaces of the sealing inner ring 2, and the pressing ring 4 is axially symmetrical with respect to the sealing inner ring 2.

[0034] The function of the limiting ring 6 and the limiting groove 8 is to facilitate the rapid positioning between the sealing outer ring 1 and the sealing inner ring 2. The function of the locking groove 9 is that when the top surface or the bottom surface of the sealing inner ring 2 is squeezed, the sealing inner ring 2 can be deformed into the locking groove 9 and fit tightly with the inner side of the sealing outer ring 1, thereby enhancing the overall sealing of the sealing ring.

[0035] The function of the pressing ring 4 is to facilitate the external application of pressure to the sealing inner ring 2. Positioning blocks 3 are evenly arranged on the outer side of the sealing outer ring 1 and the inner side of the sealing inner ring 2. The sealing outer ring 1, the sealing inner ring 2 and the pressing ring 4 are all made of fluororubber thermoplastic.

[0036] The function of the positioning block 3 is to facilitate the positioning and fixing between the sealing outer ring 1 and the sealing inner ring 2 and the mounting components. Fluororubber can also be compounded with other high-performance materials such as carbon fiber, silicone rubber, etc. to improve the strength, wear resistance and high temperature resistance of the sealing ring.

[0037] In summary: the function of the limit ring 6 and the limit groove 8 is to facilitate the rapid positioning between the sealing outer ring 1 and the sealing inner ring 2; the function of the locking groove 9 is that when the top surface or bottom surface of the sealing inner ring 2 is squeezed, the sealing inner ring 2 can be deformed into the locking groove 9 and fit tightly with the inner side of the sealing outer ring 1, thereby enhancing the overall sealing of the sealing ring; the function of the positioning block 3 is to facilitate the positioning and fixation between the sealing outer ring 1 and the sealing inner ring 2 and the mounting components; fluororubber can also be compounded with other high-performance materials such as carbon fiber, silicone rubber, etc. to improve the strength, wear resistance and high temperature resistance of the sealing ring; a movable groove 5 is provided on the outer side of the sealing inner ring 2, so that the sealing outer ring 1 and the sealing inner ring 2 can be rotated by connecting the movable ring 7 and the movable groove 5, so that when the sealing ring is installed as a whole in a sealing environment that needs to be rotated, the friction between the sealing ring as a whole and the mounting components is greatly reduced, thereby extending the service life of the sealing ring and improving the practicality of the sealing ring.

[0038] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A fluororubber O-type sealing ring, comprising a sealing outer ring (1), characterized in that: A sealing inner ring (2) is arranged inside the sealing outer ring (1), and the sealing inner ring (2) is movably connected to the sealing outer ring (1); a movable ring (7) is fixed on the inner side of the sealing outer ring (1); a movable groove (5) is provided on the outer side of the sealing inner ring (2), and the movable ring (7) is movably connected to the movable groove (5).

2. A fluororubber O-ring according to claim 1, characterized in that: A limiting groove (8) is provided in the movable groove (5), a limiting ring (6) is provided on the inner side of the movable ring (7), and the limiting ring (6) is movably connected to the limiting groove (8).

3. A fluororubber O-ring according to claim 1, characterized in that: A locking groove (9) is provided on the surface of the sealing inner ring (2), and the locking groove (9) is an axisymmetric structure with respect to the sealing inner ring (2).

4. A fluororubber O-ring according to claim 1, characterized in that: The top surface and the bottom surface of the sealing inner ring (2) are respectively provided with a pressing ring (4), and the pressing ring (4) is an axisymmetric structure with respect to the sealing inner ring (2).

5. The fluororubber O-ring according to claim 1, characterized in that: Positioning blocks (3) are evenly arranged on the outer side of the sealing outer ring (1) and the inner side of the sealing inner ring (2).

6. A fluororubber O-ring according to claim 1, characterized in that: The sealing outer ring (1), the sealing inner ring (2) and the pressing ring (4) are all made of fluororubber by thermoplasticization.

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