Lip-shaped sealing ring with lip supporting assembly

Abstract

The utility model relates to the field of sealing ring devices, and discloses a lip-shaped sealing ring with a lip opening supporting assembly, which comprises an outer ring and an inner ring, the inner ring is arranged on the inner side wall of the outer ring, and the lower position of the inner side wall of the outer ring is fixedly connected with the lower position of the side wall of the inner ring. Grooves are formed in the middle of the inner side wall of the outer ring and the middle of the side wall of the inner ring respectively, sliding blocks are slidably connected to the inner side walls of the two grooves respectively, a supporting pad is arranged on the inner side wall of the outer ring, a spring is rotatably connected to the bottom end of the supporting pad, and a plurality of air holes are formed in the top end of the supporting pad in a circumferential array mode. The two ends of the supporting pad are fixedly connected with the two sliding blocks correspondingly, and the supporting pad is matched with the groove. According to the lip-shaped sealing ring with the lip supporting assembly, the spring is arranged on the inner side wall of the outer ring, the supporting performance of the whole lip-shaped sealing ring is effectively improved, and meanwhile the supporting pad is arranged, so that the sealing performance of the lip-shaped sealing ring is further improved when the lip-shaped sealing ring is used.

Description

Technical Field

[0001] The utility model relates to the field of sealing ring devices, in particular to a lip-shaped sealing ring with a lip support component. Background Art

[0002] Sealing rings are usually made of rubber or other elastic materials to prevent leakage of liquid or gas in mechanical equipment. Lip sealing rings with lip support components add a lip support component to this basis to improve the performance and stability of the sealing ring.

[0003] Although the prior art improves and perfects the traditional sealing ring technology through the lip sealing ring with a lip support assembly, thereby improving the sealing performance and service life and adapting to a wider range of engineering needs and application scenarios, the sealing performance is poor during use, resulting in the overall performance and stability of the sealing ring being reduced. Therefore, technical personnel in this field provide a lip sealing ring with a lip support assembly to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art, and to propose a lip seal ring with a lip support assembly, providing a lip seal ring with a lip support assembly that effectively improves the overall support of the device by arranging a spring on the inner wall of the outer ring, and further improves the sealing performance of the seal ring when in use by arranging a support pad.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a lip seal ring with a lip support assembly, comprising an outer ring and an inner ring, the inner ring is arranged on the inner side wall of the outer ring, the inner side wall of the outer ring is fixedly connected to the inner side wall of the inner ring at a lower position, a groove is respectively provided in the middle of the inner side wall of the outer ring and the middle of the inner side wall of the inner ring, the inner side walls of the two grooves are respectively slidably connected with sliders, the inner side wall of the outer ring is provided with a support pad, the bottom end of the support pad is rotatably connected with a spring, and the top end of the support pad has a plurality of air holes in a circumferential array;

[0006] Through the above technical solution, by arranging a spring inside the outer ring and utilizing the spring to play a good supporting role, the sealing ring can be effectively prevented from being displaced under pressure, thereby improving the sealing performance. At the same time, a spiral spring is adopted, so that the lip sealing ring can be reduced in size through appropriate twisting and folding like other sealing rings, which is convenient for packaging and transportation, effectively reducing the handling cost of the product, and greatly improving the overall practicality of the device.

[0007] Furthermore, the outer ring and the inner ring are made of nitrile rubber;

[0008] Through the above technical scheme, nitrile rubber is a polymer formed by emulsion copolymerization of butadiene and acrylonitrile, and has good wear resistance, aging resistance and air tightness.

[0009] Furthermore, the support pad is made of butadiene rubber;

[0010] Through the above technical scheme, butadiene rubber is obtained by solution polymerization of butadiene. Butadiene rubber has particularly excellent cold resistance, wear resistance and elasticity, and also has good aging resistance.

[0011] Furthermore, the two ends of the support pad are respectively fixedly connected to the two sliders, and the support pad and the groove are adapted to each other;

[0012] Through the above technical solution, the support pad is effectively installed.

[0013] Further, the axial clearance of the spring coil is five millimeters;

[0014] Through the above technical solution, the overall structure of the device is effectively improved.

[0015] Furthermore, the spring is made of carbon steel wire;

[0016] Through the above technical solution, the overall structural strength of the spring is effectively improved.

[0017] Furthermore, a plurality of the air holes respectively penetrate the upper end surface of the support pad and are connected with the inner side wall of the outer ring;

[0018] Through the above technical solution, the gas inside the outer ring can be effectively discharged.

[0019] Furthermore, the outer ring and the inner ring are an integrally formed structure;

[0020] Through the above technical solution, the overall sealing performance of the device is effectively improved.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, a spring is arranged inside the outer ring, and the spring plays a good supporting role, which can effectively prevent the seal ring from being displaced under pressure, so that the sealing performance is better. At the same time, a spiral spring is adopted, so that the lip seal ring can be reduced in size by appropriate twisting and folding like other seal rings, which is convenient for packaging and transportation, effectively reducing the handling cost of the product, and greatly improving the overall practicality of the device.

[0023] 2. In the utility model, a support pad is arranged on the inner wall of the outer ring, and sliders are arranged at both ends of the support pad. The support pad is connected to the outer ring and the inner ring by means of the sliders to avoid the support pad from falling off when the sealing ring is carried. At the same time, air holes are arranged on the surface of the support pad so that the gas inside the outer ring can be discharged when the sealing ring is used to avoid the support pad from falling off, thereby further improving the sealing performance of the sealing ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A three-dimensional diagram of a lip seal ring with a lip support assembly proposed by the utility model;

[0025] Figure 2 A cross-sectional view of a lip seal ring with a lip support assembly proposed by the utility model;

[0026] Figure 3 It is an isometric cross-sectional view of a lip seal ring with a lip support assembly proposed by the utility model;

[0027] Figure 4 The utility model is a top view of a lip seal ring with a lip support assembly.

[0028] Legend:

[0029] 1. Outer ring; 2. Inner ring; 3. Support pad; 4. Air vent; 5. Spring; 6. Groove; 7. Slider. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Reference Figure 1-4The utility model provides an embodiment: a lip seal ring with a lip support assembly, comprising an outer ring 1 and an inner ring 2, the inner ring 2 is arranged on the inner side wall of the outer ring 1, the inner side wall of the outer ring 1 is fixedly connected to the inner side wall of the inner ring 2 at a lower position, a groove 6 is respectively opened in the middle of the inner side wall of the outer ring 1 and the middle of the side wall of the inner ring 2, and a slider 7 is slidably connected to the inner walls of the two grooves 6, and a support pad 3 is arranged on the inner side wall of the outer ring 1, and a spring 5 is rotatably connected to the bottom end of the support pad 3, and a plurality of air holes 4 are arranged in a circular array on the top end of the support pad 3. By arranging the spring 5 inside the outer ring 1 and utilizing the spring 5 to play a good supporting role, the seal ring can be effectively prevented from being displaced under the action of pressure, so that the sealing performance is better. At the same time, the spiral spring 5 is adopted, so that the lip seal ring can be reduced in size by appropriate twisting and folding like other seal rings, which is convenient for packaging and transportation, effectively reduces the handling cost of the product, and greatly improves the overall practicality of the device.

[0032] The outer ring 1 and the inner ring 2 are made of nitrile rubber, and the support pad 3 is made of butadiene rubber. The two ends of the support pad 3 are fixedly connected to the two sliders 7 respectively. The support pad 3 and the groove 6 are adapted to each other. The axial clearance of the spring 5 is five millimeters. The spring 5 is made of carbon steel wire. Several air holes 4 pass through the upper end surface of the support pad 3 and are connected with the inner wall of the outer ring 1. The outer ring 1 and the inner ring 2 are an integrally formed structure. The support pad 3 is arranged on the inner wall of the outer ring 1. Sliders 7 are arranged at both ends of the support pad 3. The support pad 3 is connected to the outer ring 1 and the inner ring 2 by the slider 7 to avoid the support pad 3 falling off when the sealing ring is carried. At the same time, air holes 4 are arranged on the surface of the support pad 3, so that the gas inside the outer ring 1 can be discharged when the sealing ring is used to avoid the support pad 3 falling off, thereby further improving the sealing performance of the sealing ring.

[0033] Working principle: By arranging a spring 5 inside the outer ring 1 and utilizing the spring 5 to play a good supporting role, the displacement of the sealing ring under pressure can be effectively prevented, thereby improving the sealing performance. At the same time, the spiral spring 5 is adopted, so that the lip sealing ring can be reduced in size through appropriate twisting and folding like other sealing rings, which is convenient for packaging and transportation, effectively reduces the handling cost of the product, and greatly improves the overall practicality of the device. A support pad 3 is arranged on the inner wall of the outer ring 1, and sliders 7 are respectively arranged at both ends of the support pad 3. The support pad 3 is connected to the outer ring 1 and the inner ring 2 by the slider 7 to prevent the support pad 3 from falling off when the sealing ring is carried. At the same time, an air vent 4 is arranged on the surface of the support pad 3, so that the gas inside the outer ring 1 can be discharged when the sealing ring is used, to prevent the support pad 3 from falling off, thereby further improving the sealing performance of the sealing ring.

[0034] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A lip seal ring with a lip support assembly, comprising an outer ring (1) and an inner ring (2), wherein the inner ring (2) is arranged on the inner side wall of the outer ring (1), characterized in that: The inner wall of the outer ring (1) is fixedly connected to the inner wall of the inner ring (2) at a lower position, a groove (6) is respectively provided in the middle of the inner wall of the outer ring (1) and the middle of the inner wall of the inner ring (2), and a slider (7) is slidably connected to the inner walls of the two grooves (6), and a support pad (3) is provided on the inner wall of the outer ring (1), a spring (5) is rotatably connected to the bottom end of the support pad (3), and a plurality of air holes (4) are provided on the top end of the support pad (3) in a circular array.

2. A lip seal ring with a lip support assembly according to claim 1, characterized in that: The outer ring (1) and the inner ring (2) are made of nitrile rubber.

3. A lip seal ring with a lip support assembly according to claim 1, characterized in that: The support pad (3) is made of butadiene rubber.

4. A lip seal ring with a lip support assembly according to claim 1, characterized in that: The two ends of the support pad (3) are respectively fixedly connected to two sliding blocks (7), and the support pad (3) and the groove (6) are adapted to each other.

5. A lip seal ring with a lip support assembly according to claim 1, characterized in that: The axial clearance of the spring (5) coil is five millimeters.

6. A lip seal ring with a lip support assembly according to claim 1, characterized in that: The spring (5) is made of carbon steel wire.

7. A lip seal ring with a lip support assembly according to claim 1, characterized in that: The plurality of air holes (4) respectively penetrate the upper end surface of the support pad (3) and are connected to the inner wall of the outer ring (1).

8. A lip seal ring with a lip support assembly according to claim 1, characterized in that: The outer ring (1) and the inner ring (2) are an integrally formed structure.

Images