Rubber composite sealing element

Abstract

The utility model provides a rubber composite sealing element, which relates to the technical field of rubber sealing elements and comprises a core plate, an outer groove is arranged on the outer surface of the core plate, an outer ring is arranged on the inner surface of the outer groove, an inner groove is arranged on the inner surface of the core plate, and an inner ring is arranged on the inner surface of the inner groove. A plurality of positioning rods are fixedly connected to the inner surfaces of the outer groove and the inner groove at equal intervals, limiting rings are symmetrically connected to the outer surfaces of the positioning rods, and a plurality of first positioning holes are formed in the inner surface of the inner ring at equal intervals. The core plate, the outer groove, the outer ring, the inner ring, the first positioning hole, the second positioning hole, the positioning rod and the inner groove are used in cooperation, the damaged outer ring or the damaged inner ring can be independently replaced, the limiting ring and the limiting groove are used in cooperation, the outer ring and the inner ring are more stable after being installed, the whole does not need to be replaced, and the use efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rubber sealing components, in particular to a rubber composite sealing component. Background Art

[0002] Seals include sealing rings. The selection of sealing ring materials is of great significance to their sealing performance and service life. The performance of the material directly affects the performance of the sealing ring. The sealing ring should have good sealing performance within the working pressure and a certain temperature range, and automatically improve the sealing performance as the pressure increases.

[0003] In the prior art, for example, Chinese patent publication No. CN217422198U discloses a double-layer composite rubber sealing ring, including a sealing ring body, wherein the sealing ring body includes a fixed ring, a mounting ring, a rubber ring, two side rubber pads, two side plates, a plurality of spring support members and a plurality of telescopic guide members, wherein one end of the plurality of spring support members and the plurality of telescopic guide members are equidistantly mounted on the upper surface of the fixed ring, and the other end is fixed on the lower surface of the mounting ring, the rubber ring is fixedly mounted on the upper surface of the mounting ring, and the two side plates are mounted on the fixed ring, which is beneficial to improving the anti-seismic buffering performance of the mounting ring, reducing the deformation of the rubber ring fixed on the mounting ring, thereby reducing the gap, improving the sealing performance between the sealing ring body and the workpiece, and improving the stability of the position between the fixed ring and the mounting ring to avoid being affected by external forces.

[0004] In the above patent, the anti-seismic buffering performance of the mounting ring can be improved, and the deformation of the rubber ring fixed on the mounting ring can be reduced, thereby reducing the gap and improving the sealing performance between the sealing ring body and the workpiece. However, after the sealing ring is worn during use, it is difficult to replace it, which requires overall replacement, increasing the equipment cost. Utility Model Content

[0005] The purpose of the utility model is to solve the problem in the above patent that the anti-seismic buffering performance of the mounting ring can be improved, the deformation of the rubber ring fixed on the mounting ring can be reduced, thereby reducing the gap and improving the sealing performance between the sealing ring body and the workpiece, but the sealing ring is difficult to replace after being worn during use, resulting in the need for overall replacement, which increases the cost of the equipment, and a rubber composite seal is proposed.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a rubber composite seal, comprising: a core plate, the outer surface of the core plate is provided with an outer groove, the inner surface of the outer groove is provided with an outer ring, the inner surface of the core plate is provided with an inner groove, the inner surface of the inner groove is provided with an inner ring, the inner surfaces of the outer groove and the inner groove are fixedly connected with a plurality of positioning rods at equal distances, the outer surfaces of the plurality of positioning rods are symmetrically connected with limiting rings, the inner surface of the inner ring is provided with a plurality of first positioning holes at equal distances, the inner surface of the outer ring is provided with a plurality of second positioning holes at equal distances, and the inner surfaces of the plurality of first positioning holes and the plurality of second positioning holes are symmetrically provided with limiting grooves.

[0007] Preferably, the outer surfaces of the plurality of positioning rods are respectively matched with the inner surfaces of the plurality of first positioning holes and the plurality of second positioning holes, and the plurality of limiting grooves are respectively matched with the plurality of limiting rings.

[0008] Preferably, the inner surface of the outer groove is matched with the outer surface of the outer ring, and the inner surface of the inner groove is matched with the outer surface of the inner ring.

[0009] Preferably, the outer ring comprises a base layer, an outer surface of the base layer is provided with a cold-resistant layer, and an outer surface of the cold-resistant layer is provided with a heat-resistant layer.

[0010] Preferably, the outer surface of the heat-resistant layer is provided with a wear-resistant layer, and the thickness of the cold-resistant layer is set between 1-3 mm.

[0011] Preferably, the thickness of the heat-resistant layer is set between 1-5 mm.

[0012] Preferably, the thickness of the wear-resistant layer is set between 0.5-3 mm.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are:

[0014] 1. In the utility model, by using the core plate, outer groove, outer ring, inner ring, first positioning hole, second positioning hole, positioning rod and inner groove in combination, a damaged outer ring or inner ring can be replaced separately, and by using the limiting ring and limiting groove in combination, the outer ring and inner ring are more stable after installation, so there is no need to replace the whole, thereby improving the use efficiency.

[0015] 2. In the utility model, the cold-resistant layer can remain soft and elastic at extremely low temperatures, the heat-resistant layer has excellent thermal stability and aging resistance, and the wear-resistant layer is made of nitrile rubber with excellent wear resistance, so that the outer ring and the inner ring have good cold resistance, heat resistance and wear resistance, so that the outer ring and the inner ring can work stably under a wider range of conditions and extend the service life BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model provides an expanded view of a rubber composite seal;

[0017] Figure 2 A partial structural cross-sectional view of a rubber composite seal is provided for the utility model;

[0018] Figure 3 A cross-sectional view of a rubber composite seal is provided for the utility model;

[0019] Figure 4 A schematic diagram of the positioning rod structure of a rubber composite seal is provided for the utility model;

[0020] Figure 5 The utility model provides a schematic diagram of the outer ring structure of a rubber composite seal.

[0021] Legend: 1. Core plate; 2. Outer groove; 3. Outer ring; 4. Inner ring; 5. First positioning hole; 6. Second positioning hole; 7. Positioning rod; 8. Limiting groove; 9. Limiting ring; 10. Inner groove; 301. Base layer; 302. Cold-resistant layer; 303. Heat-resistant layer; 304. Wear-resistant layer. DETAILED DESCRIPTION

[0022] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0024] Embodiment 1, as Figure 1-Figure 5As shown, the utility model provides a rubber composite seal, comprising: a core plate 1, an outer groove 2 is provided on the outer surface of the core plate 1, an outer ring 3 is arranged on the inner surface of the outer groove 2, an inner groove 10 is provided on the inner surface of the core plate 1, an inner ring 4 is arranged on the inner surface of the inner groove 10, a plurality of positioning rods 7 are fixedly connected to the inner surfaces of the outer groove 2 and the inner groove 10 at equal distances, the outer surfaces of the plurality of positioning rods 7 are symmetrically connected to limiting rings 9, a plurality of first positioning holes 5 are provided on the inner surface of the inner ring 4 at equal distances, a plurality of second positioning holes 6 are provided on the inner surface of the outer ring 3 at equal distances, limiting grooves 8 are symmetrically provided on the inner surfaces of the plurality of first positioning holes 5 and the plurality of second positioning holes 6, the outer surfaces of the plurality of positioning rods 7 are respectively matched with the inner surfaces of the plurality of first positioning holes 5 and the plurality of second positioning holes 6, the plurality of limiting grooves 8 are respectively matched with the plurality of limiting rings 9, the inner surface of the outer groove 2 is matched with the outer surface of the outer ring 3, the inner surface of the inner groove 10 is matched with the outer surface of the inner ring 4.

[0025] The effect achieved by the entire embodiment 1 is that when the inner ring 4 is worn and needs to be replaced, the damaged inner ring 4 is removed, and then the new inner ring 4 is placed along the inner groove 10 of the core plate 1, and the first positioning hole 5 on the inner ring 4 is aligned with the positioning rod 7 in the inner groove 10, and then the first positioning hole 5 of the inner ring 4 is pressed to insert the positioning rod 7 into the first positioning hole 5, and the two limiting rings 9 are inserted into the corresponding limiting grooves 8 in turn, and the inner ring 4 is further limited, thereby completing the replacement of the inner ring 4; when the outer ring 3 is damaged, the damaged outer ring 3 is removed, and the new outer ring 3 is installed in the outer groove 2 in the core plate 1, and the second positioning hole 6 on the outer ring 3 is aligned with the positioning rod 7, and then the outer ring 3 is pressed to insert the positioning rod 7 into the corresponding second positioning hole 6, and the two limiting rings 9 are inserted into the corresponding limiting grooves 8 in turn, and the outer ring 3 is further limited, so that the outer ring 3 and the inner ring 4 can be replaced separately without replacing the whole, thereby improving the use efficiency.

[0026] Embodiment 2, as Figure 1-Figure 5 As shown, the outer ring 3 includes a base layer 301, the outer surface of the base layer 301 is provided with a cold-resistant layer 302, the outer surface of the cold-resistant layer 302 is provided with a heat-resistant layer 303, the outer surface of the heat-resistant layer 303 is provided with a wear-resistant layer 304, the thickness of the cold-resistant layer 302 is set between 1-3 mm, the thickness of the heat-resistant layer 303 is set between 1-5 mm, and the thickness of the wear-resistant layer 304 is set between 0.5-3 mm.

[0027] The effect achieved by the entire embodiment 2 is that the base layer 301 is made of rubber material, and the cold-resistant layer 302 is made of silicone rubber material, which can remain soft and elastic at extremely low temperatures and is not easy to harden or crack. The base layer 301 can still maintain good sealing performance in a cold environment. The heat-resistant layer 303 is made of fluororubber material, can work at extremely high temperatures, has excellent thermal stability and aging resistance, can maintain stable performance for a long time in a high temperature environment, and can ensure that the base layer 301 still maintains good sealing performance under high temperature conditions. The wear-resistant layer 304 is made of nitrile rubber with excellent wear resistance, can resist external friction and wear, and extend the service life, so that the outer ring 3 has good cold resistance, heat resistance and wear resistance, so that the outer ring 3 can work stably and extend the service life under a wider range of conditions. At the same time, the material used by the inner ring 4 is consistent with the outer ring 3.

[0028] Working principle: the structure of the inner ring 4 from the inside to the outside is a wear-resistant layer 304, a heat-resistant layer 303, a cold-resistant layer 302 and a base layer 301, and the structure of the outer ring 3 from the inside to the outside is a base layer 301, a cold-resistant layer 302, a heat-resistant layer 303 and a wear-resistant layer 304. When the inner ring 4 is worn and needs to be replaced, the damaged inner ring 4 is removed, and then the new inner ring 4 is placed along the inner groove 10 of the core plate 1, and the first positioning hole 5 on the inner ring 4 is aligned with the positioning rod 7 in the inner groove 10, and then the first positioning hole 5 of the inner ring 4 is pressed to insert the positioning rod 7 into the first positioning hole 5, and the two limiting rings 9 are inserted into the corresponding limiting grooves 8 in turn, and the inner ring 4 is further limited, thereby completing the replacement of the inner ring 4. When the outer ring 3 is worn, the damaged inner ring 4 is removed, and then the new inner ring 4 is placed along the inner groove 10 of the core plate 1, and the first positioning hole 5 on the inner ring 4 is aligned with the positioning rod 7 in the inner groove 10, and then the first positioning hole 5 of the inner ring 4 is pressed to insert the positioning rod 7 into the first positioning hole 5, and the two limiting rings 9 are inserted into the corresponding limiting grooves 8 in turn, and the inner ring 4 is further limited. When damage occurs, remove the damaged outer ring 3, install a new outer ring 3 into the outer groove 2 in the core plate 1, align the second positioning hole 6 on the outer ring 3 with the positioning rod 7, and then press the outer ring 3 to insert the positioning rod 7 into the corresponding second positioning hole 6, and insert the two limiting rings 9 into the corresponding limiting grooves 8 in turn, and further limit the outer ring 3, so that the outer ring 3 and the inner ring 4 can be replaced separately without replacing the whole, thereby improving the use efficiency. At the same time, with the cooperation of the wear-resistant layer 304, the heat-resistant layer 303, the cold-resistant layer 302 and the base layer 301, the outer ring 3 and the inner ring 4 have better cold resistance, heat resistance and wear resistance, so that the outer ring 3 can work stably under a wider range of conditions and extend its service life.

[0029] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A rubber composite seal, characterized in that: include: A core plate (1), wherein an outer groove (2) is provided on the outer surface of the core plate (1), an outer ring (3) is provided on the inner surface of the outer groove (2), an inner groove (10) is provided on the inner surface of the core plate (1), an inner ring (4) is provided on the inner surface of the inner groove (10), a plurality of positioning rods (7) are fixedly connected to the inner surfaces of the outer groove (2) and the inner groove (10) at equal distances, a plurality of positioning rods (7) are symmetrically connected to the outer surfaces of the plurality of positioning rods (7), a plurality of first positioning holes (5) are symmetrically provided on the inner surface of the inner ring (4), a plurality of second positioning holes (6) are symmetrically provided on the inner surface of the plurality of first positioning holes (5) and a plurality of second positioning holes (6), and a plurality of limiting grooves (8) are symmetrically provided on the inner surfaces of the plurality of first positioning holes (5) and the plurality of second positioning holes (6).

2. The rubber composite seal according to claim 1, characterized in that: The outer surfaces of the plurality of positioning rods (7) are respectively matched with the inner surfaces of the plurality of first positioning holes (5) and the plurality of second positioning holes (6), and the plurality of limiting grooves (8) are respectively matched with the plurality of limiting rings (9).

3. The rubber composite seal according to claim 2, characterized in that: The inner surface of the outer groove (2) is matched with the outer surface of the outer ring (3), and the inner surface of the inner groove (10) is matched with the outer surface of the inner ring (4).

4. The rubber composite seal according to claim 3, characterized in that: The outer ring (3) comprises a base layer (301), the outer surface of the base layer (301) is provided with a cold-resistant layer (302), and the outer surface of the cold-resistant layer (302) is provided with a heat-resistant layer (303).

5. The rubber composite seal according to claim 4, characterized in that: The outer surface of the heat-resistant layer (303) is provided with a wear-resistant layer (304), and the thickness of the cold-resistant layer (302) is set between 1 and 3 mm.

6. The rubber composite seal according to claim 5, characterized in that: The thickness of the heat-resistant layer (303) is set between 1-5 mm.

7. The rubber composite seal according to claim 6, characterized in that: The thickness of the wear-resistant layer (304) is set between 0.5-3 mm.

Images