Plastic sealing ring with high pressure resistance

Abstract

The utility model belongs to the technical field of sealing rings, and particularly relates to a plastic sealing ring with high pressure resistance, which comprises a sealing ring body, a pressurizing block is arranged on the outer ring of the end of the sealing ring body, a pressure reducing groove is arranged on the outer wall of the sealing ring body, and the section of the pressure reducing groove is of a trapezoidal structure. The pressurization block can effectively improve the anti-pressure capacity of the sealing ring, the pressure reducing groove in the outer wall of the sealing ring body further improves the anti-pressure capacity of the sealing ring, the oil seal groove is formed in the end face, away from the pressurization block, of the sealing ring, the oil seal groove is filled with lubricating oil, and therefore the sealing ring is not prone to falling off. And friction to the sealing ring can be effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing rings, in particular to a plastic sealing ring with strong pressure resistance. Background Art

[0002] Although ordinary sealing rings can provide a good sealing effect at room temperature and pressure, their sealing performance will be greatly reduced once they are applied to heavy-load equipment, especially equipment operating at high pressure and high speed. The sealing rings are easily damaged and need to be replaced frequently. Replacing the sealing rings requires disassembling and assembling the equipment structure, which not only reduces operating efficiency, but also has a certain impact on the life of the equipment and increases practical costs. There is an urgent need for a sealing ring that can be used under high pressure and heavy loads and can adapt to high-speed operation. Utility Model Content

[0003] In order to overcome the above-mentioned defects in the prior art, the utility model provides a plastic sealing ring with strong pressure resistance.

[0004] A plastic sealing ring with strong pressure resistance includes a sealing ring body, an outer ring at the end of the sealing ring body is provided with a boosting block, a pressure relief groove is provided on the outer wall of the sealing ring body, the cross-section of the pressure relief groove is a trapezoidal structure, and an oil seal groove is provided on the end face of the sealing ring away from the boosting block.

[0005] Furthermore, the oil seal groove is provided with a pattern or a mesh pattern.

[0006] Furthermore, the boost block is made of aluminum.

[0007] Furthermore, a connecting protrusion is provided at the connection between the sealing ring body and the boosting block, and a connecting groove that cooperates with the connecting protrusion is provided on the boosting block.

[0008] Furthermore, the oil seal groove includes an outer oil seal groove and an inner oil seal groove, which are respectively close to the outer ring and inner ring of the sealing ring body. The side wall of the outer oil seal groove close to the outer ring is an inclined surface, and the side wall of the inner oil seal groove close to the inner ring is an inclined surface.

[0009] Due to the adoption of the above technical scheme, the beneficial technical effect of the utility model is: the boost block in the utility model can effectively improve the pressure resistance of the sealing ring, and the pressure relief groove on the outer wall of the sealing ring body further improves the pressure resistance of the sealing ring. An oil seal groove is provided on the end face of the sealing ring away from the boost block, and the lubricating oil fills the oil seal groove, which can effectively reduce the friction on the sealing ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a structural diagram of a plastic sealing ring with strong pressure resistance according to the utility model;

[0011] Figure 2This is a top view of a plastic sealing ring with strong pressure resistance according to the utility model;

[0012] Figure 3 For this utility model Figure 2 Schematic diagram of the cross-sectional structure in the AA direction.

[0013] In the figure, 1, sealing ring body, 2, boosting block, 3, pressure relief groove, 4, connecting protrusion, 5, outer oil seal groove, 6, inner oil seal groove. DETAILED DESCRIPTION

[0014] In order to more clearly illustrate the technical solution of the present invention, the present invention is further described below in conjunction with the accompanying drawings. Obviously, the drawings described below are only one embodiment of the present invention. For ordinary technicians in this field, without paying any creative work, other embodiments can be obtained based on these drawings and embodiments, which all fall within the scope of protection of the present invention.

[0015] according to Figure 1-3 As shown, a plastic sealing ring with strong pressure resistance includes a sealing ring body 1, an outer ring at the end of the sealing ring body 1 is provided with a boosting block 2, a pressure relief groove 3 is provided on the outer wall of the sealing ring body 1, and the cross-section of the pressure relief groove 3 is a trapezoidal structure, and an oil seal groove is provided on the end face of the sealing ring away from the boosting block 2.

[0016] In the above-mentioned specific technical solution, the boosting block 2 can effectively improve the pressure resistance of the sealing ring, and the pressure reducing groove 3 on the outer wall of the sealing ring body 1 further improves the pressure resistance of the sealing ring. An oil seal groove is provided on the end face of the sealing ring away from the boosting block 2, and the oil seal groove is filled with lubricating oil, which can effectively reduce the friction on the sealing ring.

[0017] The oil seal groove is provided with patterns or mesh patterns, which can improve the strength of the oil seal groove wall.

[0018] The boost block 2 is made of aluminum.

[0019] A connecting protrusion 4 is provided at the connection between the sealing ring body 1 and the boosting block 2 , and a connecting groove cooperating with the connecting protrusion 4 is provided on the boosting block 2 , thereby increasing the connection strength between the sealing ring body 1 and the boosting block 2 .

[0020] The oil seal groove includes an outer oil seal groove 5 and an inner oil seal groove 6, which are respectively close to the outer ring and inner ring of the sealing ring body 1. The side wall of the outer oil seal groove 5 close to the outer ring is an inclined surface, and the side wall of the inner oil seal groove 6 close to the inner ring is an inclined surface, which can enhance the sealing performance of the sealing ring.

[0021] The above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the present invention. The scope of protection of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and scope of protection of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the scope of protection of the present invention.

Claims

1. A plastic sealing ring with strong pressure resistance, comprising a sealing ring body (1), characterized in that: The outer ring of the end of the sealing ring body (1) is provided with a boost block (2), the outer wall of the sealing ring body (1) is provided with a pressure relief groove (3), the cross section of the pressure relief groove (3) is a trapezoidal structure, and the end face of the sealing ring away from the boost block (2) is provided with an oil seal groove.

2. A plastic sealing ring with high pressure resistance according to claim 1, characterized in that: The oil seal groove is provided with a pattern or a mesh pattern.

3. A plastic sealing ring with high pressure resistance according to claim 2, characterized in that: The boost block (2) is made of aluminum.

4. A plastic sealing ring with high pressure resistance according to claim 3, characterized in that: A connecting protrusion (4) is provided at the connection between the sealing ring body (1) and the boosting block (2), and a connecting groove cooperating with the connecting protrusion (4) is provided on the boosting block (2).

5. A plastic sealing ring with high pressure resistance according to claim 4, characterized in that: The oil seal groove comprises an outer oil seal groove (5) and an inner oil seal groove (6), which are respectively close to the outer ring and the inner ring of the sealing ring body (1); the side wall of the outer oil seal groove (5) close to the outer ring is an inclined surface, and the side wall of the inner oil seal groove (6) close to the inner ring is an inclined surface.

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