Rubber sealing ring with self-lubricating structure

Abstract

The utility model relates to rubber seal ring technical field, concretely is a kind of rubber seal ring with self-lubricating structure, including thickened rubber outer ring, the upper surface and the lower surface of thickened rubber outer ring are all set up the reserved groove of uniform distribution, the inside of thickened rubber outer ring is set up arc groove, and arc groove is provided with built-in protective rubber ring, the inside of built-in protective rubber ring is provided with liquid storage rubber sleeve, the recess groove in the inside of thickened rubber outer ring is inserted in liquid storage rubber sleeve. By setting up corresponding reserved groove on the upper surface and the lower surface of thickened rubber outer ring, and setting built-in protective rubber ring in the slot of thickened rubber ring inside, sealed by built-in protective rubber ring to liquid storage rubber sleeve, when the seal ring is assembled and is pressed and appears deformation, liquid storage rubber sleeve will transfer its internal oil to the reserved groove along the flow arc groove due to extrusion, finally oil will be coated on the outside of thickened rubber outer ring, to realize the self-lubricating purpose after seal ring assembly.

Description

Technical Field

[0001] This utility model relates to the field of rubber sealing ring technology, specifically a rubber sealing ring with a self-lubricating structure. Background Technology

[0002] A rubber sealing ring is a ring-shaped or cover-shaped sealing device that mainly achieves its sealing function through contact or gap structure. Its core function is to prevent liquid leakage, gas escape, or foreign object intrusion, thereby ensuring the stable and safe operation of machinery, equipment, or systems under various working conditions.

[0003] Currently, during actual use, when the rubber sealing ring is compressed, the resistance at the contact point between its outer surface and the assembly increases due to temperature and humidity. If the assembly vibrates, the sealing ring is prone to wear, which can seriously affect the sealing performance of the device.

[0004] Therefore, a rubber sealing ring with a self-lubricating structure was designed to solve the above problems. Utility Model Content

[0005] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0006] Therefore, the technical solution adopted by this utility model is as follows: A self-lubricating rubber sealing ring includes a thickened rubber outer ring. The upper and lower surfaces of the thickened rubber outer ring are provided with uniformly distributed pre-drilled grooves. An arc groove is formed on the inner side of the thickened rubber outer ring, and a built-in protective rubber ring is disposed within the arc groove. A liquid-retaining rubber sleeve is disposed inside the built-in protective rubber ring. The liquid-retaining rubber sleeve is inserted into a groove inside the thickened rubber outer ring. Multiple memory rubber pads are evenly distributed between the liquid-retaining rubber sleeve and the thickened rubber outer ring. A flow-guiding arc groove communicating with the interior of the liquid-retaining rubber sleeve is formed on the inner wall of the built-in protective rubber ring.

[0007] In a preferred embodiment, the present invention can be further configured such that the arc groove on the inner side of the thickened rubber outer ring is connected to the reserved groove, and the port of the flow guiding arc groove is connected to the corresponding reserved groove.

[0008] In a preferred embodiment, the present invention can be further configured such that: the thickened rubber outer ring is composed of a circular outer rubber sleeve and a U-shaped inner rubber sleeve, and the inner wall of the U-shaped inner rubber sleeve is coated with an adhesive, and the liquid storage sleeve is fixed in the U-shaped inner rubber sleeve by the adhesive.

[0009] In a preferred embodiment, the present invention can be further configured such that a sealed cavity is reserved between the multiple memory rubber pads installed inside the thickened rubber outer ring, and the cavity stores gas.

[0010] In a preferred embodiment, the present invention can be further configured such that: the built-in protective rubber ring has an arc-shaped structure, the outer port of the liquid storage sleeve is coated with adhesive, and the adhesive on the outer port of the liquid storage sleeve is fixed to the middle of the inner side of the built-in protective rubber ring.

[0011] In a preferred embodiment, the present invention can be further configured such that: an expansion pad is provided inside the liquid storage sleeve, and the expansion pad has multiple injection holes communicating with the inner cavity of the liquid storage sleeve.

[0012] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows: 1. This utility model involves creating corresponding reserved grooves on the upper and lower surfaces of the thickened rubber outer ring, and setting an internal protective rubber ring in the groove on the inner side of the thickened rubber ring. The internal protective rubber ring seals the liquid storage sleeve. When the sealing ring is assembled and deformed under pressure, the liquid storage sleeve will transfer the internal oil along the guide arc groove to the reserved groove due to compression. Finally, the oil will coat the outside of the thickened rubber outer ring, thereby achieving the self-lubricating purpose after the sealing ring is assembled. Attached Figure Description

[0013] Figure 1 This is a schematic diagram illustrating the use of this utility model; Figure 2 This is a cross-sectional schematic diagram of the present invention; Figure 3 This is an exploded view of the present invention; Figure 4 This utility model Figure 3 Enlarged view of point A in the middle; Figure 5 This utility model Figure 3 Enlarged diagram of point B in the middle.

[0014] Figure label: 1. Thickened rubber outer ring; 11. Reserved groove; 2. Built-in protective rubber ring; 21. Flow guide arc groove; 3. Liquid storage rubber sleeve; 4. Expansion pad; 41. Injection hole; 5. Memory rubber pad. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0016] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0017] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing a rubber sealing ring with a self-lubricating structure.

[0018] Example 1: Combination Figures 1 to 5 As shown, the present invention provides a rubber sealing ring with a self-lubricating structure, including a thickened rubber outer ring 1. The upper and lower surfaces of the thickened rubber outer ring 1 are provided with uniformly distributed reserved grooves 11. The inner side of the thickened rubber outer ring 1 is provided with an arc groove, and an internal protective rubber ring 2 is provided in the arc groove. The inner side of the internal protective rubber ring 2 is provided with a liquid storage sleeve 3. The liquid storage sleeve 3 is inserted into the groove inside the thickened rubber outer ring 1. A plurality of memory rubber pads 5 are installed between the liquid storage sleeve 3 and the thickened rubber outer ring 1. The inner wall of the internal protective rubber ring 2 is provided with a guide arc groove 21 that communicates with the inside of the liquid storage sleeve 3. An expansion pad 4 is provided inside the liquid storage sleeve 3. A plurality of injection holes 41 that communicate with the inner cavity of the liquid storage sleeve 3 are provided inside the expansion pad 4. The thickened rubber outer ring 1 is composed of a circular outer rubber sleeve and a U-shaped inner rubber sleeve, and the inner wall of the U-shaped inner rubber sleeve is coated with adhesive. The liquid storage sleeve 3 is fixed in the U-shaped inner rubber sleeve by adhesive. The built-in protective rubber ring 2 has an arc-shaped structure. The outer port of the liquid storage sleeve 3 is coated with adhesive, and the adhesive on the outer port of the liquid storage sleeve 3 is fixed to the middle of the inner side of the built-in protective rubber ring 2.

[0019] The expansion pad 4 is pre-inserted into the inside of the liquid storage sleeve 3, and the oil is injected into the inner cavity of the liquid storage sleeve 3 through one of the injection holes 41 using an oil injection needle. Then, the built-in protective rubber ring 2 is fixed to the outer port of the liquid storage sleeve 3 using adhesive. Then, the pre-installed liquid storage sleeve 3 is inserted into the groove inside the thickened rubber outer ring 1, and the corresponding liquid storage sleeve 3 and built-in protective rubber ring 2 are fixed in the thickened rubber outer ring 1 using adhesive until the thickened rubber outer ring 1, the built-in protective rubber ring 2 and the liquid storage sleeve 3 form an integral structure. Under the expansion action of multiple memory pads 5, the thickened rubber outer ring 1 and the built-in protective rubber ring 2 will be effectively expanded, and finally can be fitted into the reserved gap, further enhancing the sealing of the assembly. As the assembly vibrates for a long time and the resistance on the outer surface of the thickened rubber outer ring 1 increases due to temperature, the thickened rubber outer ring 1, which is subjected to compression vibration, compresses the liquid storage sleeve 3 through multiple memory rubber pads 5. Finally, the oil in the liquid storage sleeve 3 will be squeezed into the reserved groove 11 along the injection hole 41 and the guide arc groove 21. The oil squeezed into the reserved groove 11 will be coated in the gap of the assembly.

[0020] Example 2: Combination Figure 2 and Figure 3As shown, in the above embodiment, the arc groove on the inner side of the thickened rubber outer ring 1 is connected to the reserved groove 11, and the port of the guide arc groove 21 is connected to the corresponding reserved groove 11. The thickened rubber outer ring 1 has multiple memory rubber pads 5 installed inside, and there are sealed cavities between them, which store gas.

[0021] Preferably, the thickness of the circular outer rubber sleeve inside the thickened rubber outer ring 1 is the same as the thickness of the built-in protective rubber ring 2, and the expansion pad 4 is made of silicone material to enhance the stability of the liquid storage sleeve 3 structure and facilitate the safe storage of injected oil. Among them, the cavity reserved between the multiple memory rubber pads 5 and the thickened rubber outer ring 1, combined with the gas action, makes the surface of the thickened rubber outer ring 1 more rounded when it is squeezed and deformed, further enhancing the adhesion between the thickened rubber outer ring 1 and the gap of the assembly after deformation.

[0022] The working principle and usage process of this utility model are as follows: When in use, the expansion pad 4 is pre-installed inside the liquid storage sleeve 3, and then the liquid storage sleeve 3 is assembled into the groove inside the thickened rubber outer ring 1. Then, the built-in protective rubber ring 2 is pasted and fixed along the groove on the inner side of the thickened rubber outer ring 1 with adhesive until the outer port of the liquid storage sleeve 3 is adapted and connected with the evenly distributed multiple flow guiding arc grooves 21. At this time, the ports at both ends of the flow guiding arc groove 21 will be adapted and connected with the two reserved grooves 11 at the top and bottom of the thickened rubber outer ring 1, respectively. When the sealing ring is installed, the thickened rubber outer ring 1 is compressed, and the multiple memory rubber pads 5 arranged inside it will deform in conjunction with the thickened rubber outer ring 1. The deformed multiple memory rubber pads 5 will further compress the liquid storage sleeve 3. Finally, the oil inside the liquid storage sleeve 3 will be squeezed out from the injection hole 41 and output along the multiple guide arc grooves 21 to the corresponding reserved grooves 11. The oil transferred to the reserved grooves 11 will coat the outer surface of the thickened rubber outer ring 1.

[0023] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A rubber sealing ring with a self-lubricating structure, comprising a thickened rubber outer ring (1), characterized in that, The upper and lower surfaces of the thickened rubber outer ring (1) are provided with uniformly distributed reserved grooves (11). The inner side of the thickened rubber outer ring (1) is provided with an arc groove, and an internal protective rubber ring (2) is provided in the arc groove. The inner side of the internal protective rubber ring (2) is provided with a liquid storage sleeve (3). The liquid storage sleeve (3) is inserted into the groove inside the thickened rubber outer ring (1). Multiple memory pads (5) are installed between the liquid storage sleeve (3) and the thickened rubber outer ring (1). The inner wall of the internal protective rubber ring (2) is provided with a flow guiding arc groove (21) that communicates with the inside of the liquid storage sleeve (3).

2. The rubber sealing ring with a self-lubricating structure according to claim 1, characterized in that, The arc groove on the inner side of the thickened rubber outer ring (1) is connected to the reserved groove (11), and the port of the flow guiding arc groove (21) is connected to the corresponding reserved groove (11).

3. A rubber sealing ring with a self-lubricating structure according to claim 1, characterized in that, The thickened rubber outer ring (1) is composed of a circular outer rubber sleeve and a U-shaped inner rubber sleeve, and the inner wall of the U-shaped inner rubber sleeve is coated with adhesive. The liquid storage sleeve (3) is fixed in the U-shaped inner rubber sleeve by adhesive.

4. A rubber sealing ring with a self-lubricating structure according to claim 1, characterized in that, The thickened rubber outer ring (1) has a sealed cavity between the multiple memory rubber pads (5) installed inside, and the cavity stores gas.

5. A rubber sealing ring with a self-lubricating structure according to claim 1, characterized in that, The built-in protective rubber ring (2) has an arc-shaped structure. The outer port of the liquid storage sleeve (3) is coated with adhesive, and the adhesive on the outer port of the liquid storage sleeve (3) is fixed to the middle of the inner side of the built-in protective rubber ring (2).

6. A rubber sealing ring with a self-lubricating structure according to claim 1, characterized in that, An expansion pad (4) is provided inside the liquid storage sleeve (3), and multiple injection holes (41) are provided inside the expansion pad (4) that are connected to the inner cavity of the liquid storage sleeve (3).

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