Compression-resistant rubber sealing ring

Abstract

The utility model discloses a compression-resistant rubber sealing ring, which relates to the technical field of sealing rings and comprises a rubber sealing ring body, a framework is arranged on the outer side of the inside of the rubber sealing ring body, a rubber elastic strip is arranged on one side of the framework and located in the rubber sealing ring body, and a first annular groove is formed in the top end of the rubber sealing ring body. Sliding grooves are symmetrically formed in the side wall of the bottom of the first annular groove, a compression resisting assembly is arranged between the two sliding grooves, a sealing piece is arranged on the inner side of the circumference of the top of the rubber sealing ring body, a second annular groove is formed in the bottom of the rubber sealing ring body, a steel ring is arranged in the second annular groove, and a dustproof piece is arranged on the inner side of the circumference of the bottom of the rubber sealing ring body. The compression-resistant rubber sealing ring is reasonable and reliable in structure and easy to operate, compression-resistant unloading can be conducted on the rubber sealing ring body under the action of the compression-resistant assembly, and therefore the compression resistance of the compression-resistant rubber sealing ring is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing rings, and specifically, to a compressive rubber sealing ring. Background Art

[0002] A rubber sealing ring is a common sealing element, which is widely used in various equipment such as diesel locomotives, automobiles, tractors, construction machinery, machine tools, and various hydraulic and pneumatic components. This kind of sealing ring is mainly responsible for preventing the leakage of lubricating oil and the intrusion of external impurities into the machine, ensuring the reliability and long-term effectiveness of the equipment operation. It consists of a ring-shaped cover composed of one or several parts, usually fixed on a race or washer of a bearing, and contacting with another race or washer, or forming a narrow labyrinth gap. The design of the rubber sealing ring enables it to undertake the sealing requirements of fixed, reciprocating, and rotating motions. Its material is usually selected as rubber with good elasticity and chemical resistance to adapt to various harsh environments and high-temperature and high-pressure conditions. However, the existing rubber sealing rings are usually sleeved on the outside of the shaft, and the shaft usually rotates at a high speed. As a result, the connection between the sealing ring and the shaft is tight, which will increase the friction force inside the oil seal, reduce the service life of the sealing ring, and is not convenient for preventing external dust or particulate matter from invading the inside of the sealing ring, thereby reducing the stability during the operation of the sealing ring.

[0003] For example, Chinese Patent CN218294416U discloses a compressive rubber sealing ring, which includes a mounting ring. Conical ports are opened at the edges on both sides of the mounting ring. A sealing ring is installed at the middle position inside the mounting ring. Conical rings are sleeved at both ends on the outer side of the sealing ring, and the two conical rings are adapted to the conical ports. Four sets of sleeves are provided inside the two conical ports.

[0004] This compressive rubber sealing ring has the following disadvantages: Although the cooperation of the two conical ports at the port of the mounting ring and the conical ring structure on the outer side of the sealing ring causes the conical ring to protrude from the sealing connection port of the sealing ring, making initial contact with the impact and extrusion forces received by the sealing ring, and being alleviated and shock-absorbed under the cooperation of multiple shock-absorbing plates, sleeve rods, first springs, and sleeves, however, the rubber sealing rings are usually sleeved on the outside of the shaft, and the shaft usually rotates at a high speed. As a result, the connection between the sealing ring and the shaft is tight, which will increase the friction force inside the oil seal, reduce the service life of the sealing ring, and is not convenient for preventing external dust or particulate matter from invading the inside of the sealing ring, thereby reducing the stability during the operation of the sealing ring.

[0005] Regarding the problems in the related art, no effective solution has been proposed yet. Summary of the Utility Model

[0006] In view of the problems in the related art, the present utility model proposes a compression-resistant rubber sealing ring to overcome the above-mentioned technical problems existing in the existing related art.

[0007] For this purpose, the specific technical solution adopted by the present utility model is as follows:

[0008] A compression-resistant rubber sealing ring, including a rubber sealing ring body, a skeleton is arranged on the inner and outer sides of the rubber sealing ring body, a rubber elastic strip is arranged on one side of the skeleton and inside the rubber sealing ring body, a first annular groove is opened at the top of the rubber sealing ring body, sliding grooves are symmetrically opened on the bottom side wall of the first annular groove, a compression-resistant component is arranged between the two sliding grooves, a sealing member is arranged on the inner circumference of the top of the rubber sealing ring body, a second annular groove is opened at the bottom of the rubber sealing ring body, a steel ring is arranged inside the second annular groove, a dust-proof member is arranged on the inner circumference of the bottom of the rubber sealing ring body, an auxiliary component is arranged between the rubber sealing ring body and the skeleton, the cross-section of the skeleton is arranged in an I-shaped structure, the cross-section of the rubber elastic strip is arranged in a cross-shaped structure, and the steel ring is an alloy spring steel.

[0009] Further, under the action of the compression-resistant component, when the rubber sealing ring body is horizontally extruded by an external force, the compression-resistant component can perform compression relief on the rubber sealing ring body, thereby effectively improving the compression resistance of the compression-resistant rubber sealing ring. The compression-resistant component includes sliding plates arranged in the two sliding grooves, and an arc-shaped rubber elastic plate is arranged between the two sliding plates.

[0010] Further, under the action of the sealing member, the friction force at the connection of the outer circumference of the rubber sealing ring body can be increased, so that the rubber sealing ring body can be installed more firmly, and further the stability of the rubber sealing ring body after installation can be improved. The sealing member is composed of several sealing lips, and the several sealing lips are arranged at equal intervals from top to bottom on the inner circumference of the top of the rubber sealing ring body. The side wall of the sealing lip is arranged in an arc-shaped structure, and the end directions of the sealing lips are the same.

[0011] Further, under the action of the dust-proof member, external dust or particulate matter can be prevented from entering the inside of the rubber sealing ring body, and the contact area between the rubber sealing ring body and the shaft is reduced, thereby reducing the friction force. The dust-proof member is composed of two groups of dust-proof lips, the side wall of the dust-proof lip is arranged in an arc-shaped structure, and the end directions of the two groups of dust-proof lips are opposite.

[0012] Furthermore, in order to enable the rubber sealing ring body to be quickly installed and disassembled under the action of the auxiliary component, thereby improving the working efficiency of the installation and disassembly of the compression-resistant rubber sealing ring, the auxiliary component includes a limiting groove provided at the top of the skeleton. A slot matching with the limiting groove is opened at the top of the rubber sealing ring body. An inserting post matching with the limiting groove is arranged inside the slot. An I-shaped slot matching with the skeleton is opened on the outer side of the inner part of the rubber sealing ring body. The cross sections of the limiting groove, the slot and the inserting post are all set as hexagonal structures.

[0013] The beneficial effects of the present utility model are as follows:

[0014] 1. The structure of the present utility model is reasonable and reliable, and the operation is simple. Under the action of the compression-resistant component, when the rubber sealing ring body is extruded by a horizontal external force, the compression-resistant and force-relieving of the rubber sealing ring body can be carried out, thereby effectively improving the compression resistance of the compression-resistant rubber sealing ring. And under the action of the sealing component, the friction force at the connection of the outer circumference of the rubber sealing ring body can be increased, making the rubber sealing ring body more firmly installed. Under the action of the dust-proof component, external dust or particulate matter can be prevented from invading the inside of the rubber sealing ring body, reducing the contact area between the rubber sealing ring body and the shaft and lowering the friction force. At the same time, under the action of the auxiliary component, the rubber sealing ring body can be quickly installed and disassembled, thereby improving the working efficiency of the installation and disassembly of the compression-resistant rubber sealing ring.

[0015] 2. Through the setting of the skeleton, the rubber elastic strip and the steel ring, the self-strength of the rubber sealing ring body can be improved, so that when the rubber sealing ring body is installed, a reaction force can be generated on the inner circumference of the rubber sealing ring body, making the inner side of the oil seal more tightly and stably connected to the shaft, and further improving the sealing performance between the rubber sealing ring body and the shaft.

[0016] 3. By setting the compression-resistant component, when the rubber sealing ring body is extruded by a horizontal external force, the arc-shaped rubber elastic plate undergoes elastic deformation and contracts inward under the action of the extrusion force. At the same time, when the arc-shaped rubber elastic plate undergoes elastic deformation and contracts inward, it drives the two sliding plates to move upward in the sliding groove, thereby enabling the horizontal-direction compression-resistant and force-relieving of the rubber sealing ring body. When the external force disappears, the arc-shaped rubber elastic plate drives the sliding plate to move downward in the sliding groove and return to the normal state, thereby effectively improving the compression resistance of the compression-resistant rubber sealing ring.

[0017] 4. By setting the sealing component, the friction force at the connection of the outer circumference of the rubber sealing ring body can be increased, making the rubber sealing ring body more firmly installed, and further improving the stability of the rubber sealing ring body after installation.

[0018] 5. By providing a dust-proof component, it is possible to prevent external dust or particulate matter from invading the interior of the rubber sealing ring body, and to reduce the contact area between the rubber sealing ring body and the shaft, thereby reducing the friction force.

[0019] 6. By providing an auxiliary component, the rubber sealing ring body can be quickly installed and disassembled, thereby improving the work efficiency of installing and disassembling the compression-resistant rubber sealing ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 is a schematic structural diagram of a compression-resistant rubber sealing ring according to an embodiment of the present invention;

[0022] Figure 2 is a cross-sectional view of a compression-resistant rubber sealing ring according to an embodiment of the present invention;

[0023] Figure 3 is Figure 2 a partial enlarged view of part A in

[0024] In the figure:

[0025] 1. Rubber sealing ring body; 2. Skeleton; 3. Rubber elastic strip; 4. First annular groove; 5. Sliding groove; 6. Compression-resistant component; 601. Slide plate; 602. Arc-shaped rubber elastic plate; 7. Sealing component; 701. Sealing lip; 8. Second annular groove; 9. Steel ring; 10. Dust-proof component; 1001. Dust-proof lip; 11. Auxiliary component; 1101. Limit groove; 1102. Insertion slot; 1103. Insertion post; 1104. I-shaped insertion slot. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] To further illustrate the embodiments, the present invention provides drawings, which are part of the disclosure of the present invention. They are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those of ordinary skill in the art should be able to understand other possible implementation manners and the advantages of the present invention. The components in the drawings are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0027] According to an embodiment of the present invention, a compression-resistant rubber sealing ring is provided.

[0028] The present utility model will be further described in conjunction with the accompanying drawings and specific embodiments. As Figures 1 - 3 shown, the compression-resistant rubber sealing ring according to an embodiment of the present utility model includes a rubber sealing ring body 1. A skeleton 2 is provided on the inner and outer sides of the rubber sealing ring body 1. A rubber elastic strip 3 is provided on one side of the skeleton 2 and inside the rubber sealing ring body 1. An annular groove 1 4 is opened at the top end of the rubber sealing ring body 1. Sliding grooves 5 are symmetrically opened on the bottom side wall of the annular groove 1 4. A compression-resistant component 6 is provided between the two sliding grooves 5. A sealing member 7 is provided on the inner circumference of the top of the rubber sealing ring body 1. An annular groove 2 8 is opened at the bottom of the rubber sealing ring body 1. A steel ring 9 is provided inside the annular groove 2 8. A dust-proof member 10 is provided on the inner circumference of the bottom of the rubber sealing ring body 1. An auxiliary component 11 is provided between the rubber sealing ring body 1 and the skeleton 2. The cross-section of the skeleton 2 is set to an I-shaped structure. The cross-section of the rubber elastic strip 3 is set to a cross-shaped structure. The steel ring 9 is alloy spring steel.

[0029] In addition, the structures and working principles of the alloy spring steel, the arc-shaped rubber elastic plate 602, and the rubber elastic strip 3 are all prior arts and will not be elaborated here.

[0030] In one embodiment, for the above-mentioned compression-resistant component 6, the compression-resistant component 6 includes sliding plates 601 provided inside the two sliding grooves 5. An arc-shaped rubber elastic plate 602 is provided between the two sliding plates 601. Under the action of the compression-resistant component 6, when the rubber sealing ring body 1 is horizontally externally squeezed, the compression-resistant component 6 can perform compression and unloading on the rubber sealing ring body 1, thereby effectively improving the compression resistance of the compression-resistant rubber sealing ring.

[0031] In one embodiment, for the above-mentioned sealing member 7, the sealing member 7 is composed of a plurality of sealing lips 701, and the plurality of sealing lips 701 are arranged equidistantly from top to bottom on the inner circumference of the top of the rubber sealing ring body 1. The side wall of the sealing lip 701 is set to an arc-shaped structure, and the end directions of the sealing lips 701 are the same. Under the action of the sealing member 7, the friction force at the connection of the outer circumference of the rubber sealing ring body 1 can be increased, the rubber sealing ring body 1 can be installed more firmly, and the stability of the rubber sealing ring body 1 after installation can be improved.

[0032] In one embodiment, for the above-mentioned dust-proof member 10, the dust-proof member 10 is composed of two groups of dust-proof lips 1001. The side wall of the dust-proof lip 1001 is set to an arc-shaped structure, and the end directions of the two groups of dust-proof lips 1001 are opposite. Under the action of the dust-proof member 10, external dust or particulate matter can be prevented from invading the inside of the rubber sealing ring body 1, and the contact area between the rubber sealing ring body 1 and the shaft is reduced, reducing the friction force.

[0033] In one embodiment, for the above-mentioned auxiliary component 11, the auxiliary component 11 includes a limiting groove 1101 arranged at the top of the skeleton 2, a slot 1102 matching the limiting groove 1101 is provided at the top of the rubber sealing ring body 1, a plug post 1103 matching the limiting groove 1101 is provided inside the slot 1102, and an I-shaped slot 1104 matching the skeleton 2 is provided on the inner and outer sides of the rubber sealing ring body 1, and the cross-sections of the limiting groove 1101, the slot 1102 and the plug post 1103 are all set to a hexagonal structure, so that under the action of the auxiliary component 11, the rubber sealing ring body 1 can be quickly installed and disassembled, thereby improving the work efficiency of the installation and disassembly of the pressure-resistant rubber sealing ring.

[0034] In order to facilitate understanding of the above technical solution of the present invention, the working principle or operation method of the present invention in the actual process is described in detail below.

[0035] In actual application, first, insert the end of the skeleton 2 into the I-shaped slot 1104, then insert the column 1103 through the slot 1102 and insert it into the limit slot 1101, and then insert the rubber sealing ring body 1 into the outer side of the circumference of the shaft. The skeleton 2 is located on the inner and outer sides of the rubber sealing ring body 1 to provide structural support and enhance the overall stability and durability of the sealing ring. The rubber elastic strip 3 is arranged on one side of the skeleton 2 to increase the elasticity of the rubber sealing ring body 1, which helps the rubber sealing ring body 1 to maintain its shape when under pressure and avoid deformation. The annular groove 4 is located at the top of the rubber sealing ring body 1, and the slide groove 5 is located on both sides of the bottom of the annular groove 4 for accommodating the pressure-resistant component 6, so that the rubber sealing ring body 1 can maintain stability when subjected to horizontal pressure. The slide plate 601 and the arc-shaped rubber elastic plate 602 work with the slide groove 5 to provide additional pressure resistance to ensure To ensure that the rubber sealing ring body 1 will not deform excessively when under pressure, the sealing member 7 is composed of a plurality of sealing lips 701, and the sealing lips 701 are arranged in an orderly manner. The side wall of each sealing lip 701 is an arc-shaped structure, which enhances the sealing effect, especially forming a multi-level sealing protection on the top of the rubber sealing ring body 1 to effectively prevent the leakage of liquid and gas. The dustproof member 10 is composed of two groups of dustproof lips 1001, and the dustproof lips 1001 are designed to be arc-shaped, which can effectively prevent external dust and impurities from entering and protect internal mechanical parts. Under the action of the auxiliary component 11, the rubber sealing ring body 1 can be quickly installed and disassembled, thereby improving the work efficiency of the installation and disassembly of the pressure-resistant rubber sealing ring. The steel ring 9 is made of alloy spring steel, which enhances the overall structural strength and durability, so that the rubber sealing ring body 1 can maintain its performance even in harsh working environments.

[0036] In the present utility model, unless otherwise clearly specified and defined, terms such as "installation", "setting", "connection", "fixation", "swivel connection", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0037] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A compressive rubber sealing ring, comprising a rubber sealing ring body (1), characterized in that, A skeleton (2) is arranged on the outer side inside the rubber sealing ring body (1). A rubber elastic strip (3) is arranged on one side of the skeleton (2) and inside the rubber sealing ring body (1). An annular groove one (4) is formed at the top end of the rubber sealing ring body (1). Sliding grooves (5) are symmetrically formed on the bottom side wall of the annular groove one (4). A compression resistance component (6) is arranged between the two sliding grooves (5); A sealing component (7) is arranged on the inner circumference of the top of the rubber sealing ring body (1). An annular groove two (8) is formed at the bottom of the rubber sealing ring body (1). A steel ring (9) is arranged inside the annular groove two (8). A dust-proof component (10) is arranged on the inner circumference of the bottom of the rubber sealing ring body (1). An auxiliary component (11) is arranged between the rubber sealing ring body (1) and the skeleton (2).

2. The compression-resistant rubber sealing ring according to claim 1, characterized in that, The compression resistance component (6) includes sliding plates (601) arranged inside the two sliding grooves (5), and an arc-shaped rubber elastic plate (602) is arranged between the two sliding plates (601).

3. The compression-resistant rubber sealing ring according to claim 1, characterized in that, The sealing component (7) is composed of a plurality of sealing lips (701), and the plurality of sealing lips (701) are arranged equidistantly from top to bottom on the inner circumference of the top of the rubber sealing ring body (1). The side wall of the sealing lip (701) is set to an arc-shaped structure, and the end directions of the sealing lips (701) are the same.

4. A compression-resistant rubber sealing ring according to claim 1, wherein, The cross-section of the skeleton (2) is set to an I-shaped structure, the cross-section of the rubber elastic strip (3) is set to a cross-shaped structure, and the steel ring (9) is alloy spring steel.

5. A compression-resistant rubber sealing ring according to claim 1, characterized in that, The dust-proof component (10) is composed of two groups of dust-proof lips (1001). The side wall of the dust-proof lip (1001) is set to an arc-shaped structure, and the end directions of the two groups of dust-proof lips (1001) are opposite.

6. The compression-resistant rubber sealing ring according to claim 1, characterized in that, The auxiliary component (11) includes a limiting groove (1101) arranged at the top end of the skeleton (2). A slot (1102) matching with the limiting groove (1101) is formed at the top end of the rubber sealing ring body (1). An inserting column (1103) matching with the limiting groove (1101) is arranged inside the slot (1102). An I-shaped slot (1104) matching with the skeleton (2) is formed on the outer side inside the rubber sealing ring body (1).

7. A compression-resistant rubber sealing ring according to claim 6, characterized in that, The cross-sections of the limiting groove (1101), the slot (1102) and the inserting column (1103) are all set to hexagonal structures.

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