Novel sealing ring

Abstract

The utility model discloses a novel sealing ring which comprises a sealing ring body, the sealing ring body is of a ring-shaped structure, two outer grooves are formed in the outer side of the sealing ring body, two inner grooves are formed in the inner side of the sealing ring body, the two inner grooves are obliquely and symmetrically arranged, and a groove channel is formed in the end, close to the two inner grooves, of the sealing ring body and connected with the two inner grooves. The utility model can reduce distortion, wear or local failure, avoid reduction of sealing performance, balance pressure and avoid over fatigue of materials.

Description

TECHNICAL FIELD

[0001] The utility model relates to a sealing ring technical field especially a new type sealing ring. BACKGROUND

[0002] The sealing ring is a commonly used sealing element in mechanical equipment and is widely used in hydraulic systems, pipeline connections and the like. The conventional O-shaped sealing ring mainly relies on elastic deformation to realize sealing, but is prone to distortion, wear or local failure under high pressure or vibration working conditions, resulting in a decline in sealing performance.

[0003] In the prior improvement scheme, some sealing rings are designed with a single-sided groove to improve the sealing pressure distribution, but have problems such as stress concentration and insufficient sealing stability. Others have an asymmetric groove structure, but lack effective pressure balance channels, which can easily lead to material fatigue after long-term use. Therefore, a new type of sealing ring needs to be designed to solve the above technical problems. SUMMARY

[0004] The utility model aims at providing a new type sealing ring.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A new type sealing ring, comprising a sealing ring body, the sealing ring body is a ring structure, the outer side is provided with two outer grooves, the inner side is provided with two inner grooves, the two inner grooves are inclined and symmetrically arranged, and the sealing ring body is provided with a channel connecting the two inner grooves at one end near the two inner grooves.

[0007] Further, the two outer grooves are arranged upward and downward.

[0008] Further, the starting end and the terminal end of the outer groove are provided with the outer side of the inner groove and are at the same level, the outer groove is connected from the starting end to the terminal end along the outer periphery of the sealing ring body, and is in an arc groove structure, the starting end and the terminal end have a certain spacing.

[0009] Further, the two inner grooves and the channel cooperate to form a trapezoidal structure.

[0010] Further, the sealing ring body is provided with a fillet on the outer periphery of one side of the channel, and the other three angles are right angles.

[0011] After the above technical scheme is adopted, the utility model has the following advantages compared with the background art:

[0012] 1. The utility model forms a trapezoidal pressure buffer zone through the symmetrically inclined inner grooves and the connecting channel, so that the medium pressure is uniformly distributed, the sealing stability is improved, and the risk of leakage under high pressure working conditions is reduced.

[0013] 2, the channel connecting two inner channels can provide a pressure balance channel, avoid local expansion or stress concentration caused by medium retention, the outer circle of the sealing ring body is provided with a fillet on one side of the channel, the stress concentration is reduced, the extrusion resistance is improved, and the service life is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is a whole structure schematic view of the utility model;

[0015] Fig. 2 It is another angle schematic view of the utility model;

[0016] Fig. 3 It is still another angle schematic view of the utility model. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the utility model is further described in detail below in combination with drawings and examples. It should be understood that the specific examples described here are only used to explain the utility model, and are not used to limit the utility model.

[0018] It should be explained in the utility model that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like are based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the utility model and simplify the description, and are not used to indicate or imply that the devices or elements of the utility model must have a specific orientation, so it cannot be understood as a limitation on the utility model.

[0019] EMBODIMENT

[0020] COOPERATION Figs. 1 to 3 As shown in the figure, the utility model discloses a novel sealing ring, including sealing ring body 1, the sealing ring body 1 is ring type structure, its outside is equipped with two outer grooves 11, and the inside is equipped with two inner grooves 12, two the inner groove 12 is inclined and symmetrically arranged, the sealing ring body 1 is equipped with channel 13 connecting two inner grooves 12 in the end close to two inner grooves 12.

[0021] The sealing ring body 1 of the embodiment is an integrally injection molded structure.

[0022] Two the outer groove 11 is arranged up and down.

[0023] The starting end and the terminal end of the outer groove 11 are provided with the outer side of the inner groove 12 and are at the same level, the outer groove 11 is connected from the starting end to the terminal end along the outer circle of the sealing ring body 1, the trend is arc groove structure, the starting end and the terminal end have a certain spacing, and the spacing is 5%-10% of the diameter of the sealing ring, preferably 8%, to balance the contact pressure and structural strength.

[0024] The two inner grooves 12 and the channel 13 form a trapezoidal structure, the inclination angle of the inner groove 12 is 30°-60°, preferably 45°, and the trapezoidal structure formed by the inner groove 12 and the channel 13 can guide the uniform diffusion of the medium pressure.

[0025] The outer periphery of the sealing ring body 1 on one side of the channel 13 is provided with a round corner, and the other three corners are right angles.

[0026] The sealing ring body of the embodiment can be applied to the sealing of a hydraulic cylinder piston.

[0027] The above is only a preferred specific implementation manner of the utility model, but the protection scope of the utility model is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model. Therefore, the protection scope of the utility model should be subject to the protection scope of the claims.

Claims

1. A novel sealing ring, characterized in that: The device includes a sealing ring body, which is a ring-shaped structure with two outer grooves on its outer side and two inner grooves on its inner side. The two inner grooves are inclined and symmetrically arranged. The sealing ring body has a channel at one end of the two inner grooves that is close to each other to connect the two inner grooves.

2. The novel sealing ring as described in claim 1, characterized in that: The two outer grooves are set at the top and bottom.

3. The novel sealing ring as described in claim 2, characterized in that: The starting end and the ending end of the outer groove are located outside the inner groove and are at the same level. The outer groove connects to the ending end from the starting end along the outer periphery of the sealing ring body, forming an arc-shaped groove structure. The starting end and the ending end have a certain distance between them.

4. The novel sealing ring as described in claim 1, characterized in that: The inner grooves and channels described above are arranged in a trapezoidal structure.

5. A novel sealing ring as described in claim 4, characterized in that: The sealing ring body has rounded corners on the outer periphery of one side of the channel, and the other triangle is a right angle.

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