Rubber dust seal ring

Abstract

The utility model relates to dustproof sealing ring technical field discloses a rubber dustproof sealing ring, including sealing lip, the bottom of sealing lip is installed with fixed mechanism, the fixed mechanism is used to facilitate installation and dismounting structure, the bottom wall middle part of sealing lip is installed with elastic mechanism, the elastic mechanism is used for improving structural strength, the fixed mechanism includes rubber block. In the utility model, the fixed ring is slipped into the inner wall of rubber block, the convex block of fixed ring outer wall can be clamped into the recess of fixed ring bottom, then the plurality of mounting blocks are put into mounting groove no. 2 respectively, the bottom of mounting block can be clamped into the clamping groove of fixed ring outer wall bottom, then the rubber ring is put on, the rubber ring is clamped into mounting groove no. 3 and mounting groove no. 1, forms the stable connection, convenient operation, facilitates installation and dismounting, prevents the adhesion of skeleton and rubber not to be not close, the whole deformation of sealing ring loses the sealing effect after long -term use.

Description

Technical Field

[0001] This utility model relates to the field of dustproof sealing ring technology, and in particular to a rubber dustproof sealing ring. Background Technology

[0002] Rubber dustproof seals are rubber seals used to prevent external dust and contaminants from entering the sealing device. They are designed to prevent detachment by using an interference fit between the skeleton and the cavity hole. The lip of the dustproof seal is flush with the end of the cylinder head, which can protect the lip from damage caused by external factors. They are often used in engineering machinery and garbage trucks where the lip is easily damaged.

[0003] Existing technologies, made from a single rubber material and other materials, have relatively simple structures and their main function is dustproofing. Common single-lip and double-lip rubber dustproof rings, for example, have reinforcing ribs at the root of the sealing lip to increase structural rigidity and improve the ring's resistance to deformation. This prevents the lip from turning over or deforming during operation due to pressure, friction, and other external forces, ensuring the sealing lip always maintains a good seal. However, ordinary rubber is prone to hardening, embrittlement, and softening under high and low temperature conditions, leading to decreased elasticity, poor sealing lip fit, and dustproof failure. Currently, high-temperature and low-temperature resistant rubber materials, such as fluororubber, silicone rubber, and perfluoroether rubber, are used to adapt to extreme temperature environments. High-temperature resistant fillers (such as carbon fiber and ceramic particles) are added to the rubber to improve heat stability. However, the bond between the skeleton and rubber is not tight, the skeleton surface is not roughened, and no adhesive is applied, resulting in gaps between the rubber and the skeleton. After long-term use, vibration and temperature changes cause delamination, leading to overall deformation of the sealing ring and loss of its sealing function. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a rubber dustproof sealing ring, which aims to improve the problems in the prior art where the skeleton and rubber are not tightly bonded, the skeleton surface is not roughened and not coated with adhesive, gaps appear between the rubber and the skeleton, and after long-term use, delamination occurs due to vibration and temperature changes, the sealing ring deforms as a whole and loses its sealing function.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a rubber dustproof sealing ring, including a sealing lip, a fixing mechanism installed at the bottom of the sealing lip, the fixing mechanism being used to facilitate the installation and disassembly of the structure, an elastic mechanism installed in the middle of the bottom wall of the sealing lip, the elastic mechanism being used to improve the structural strength; the fixing mechanism includes a rubber block, the rubber block being fixedly connected to the bottom wall of the sealing lip, a plurality of mounting grooves are equidistantly formed on the outer wall of the rubber block, a mounting groove is formed in the middle of the outer wall of the rubber block, and a groove is formed on the bottom wall of the rubber block.

[0006] As a further description of the above technical solution: A fixing ring is slidably connected to the inner wall of the rubber block, and a protrusion is fixedly connected to the top wall of the fixing ring. The protrusion is slidably connected to the inner wall of the groove, and an installation component is installed on the outer side of the rubber block.

[0007] As a further description of the above technical solution: The mounting assembly includes a mounting block, which is slidably connected to the inner wall of the mounting groove two and the fixing ring. The lower part of the outer wall of the mounting block is provided with a mounting groove three, and a rubber ring is installed on the inner wall of the mounting groove three and the mounting groove one.

[0008] As a further description of the above technical solution: The elastic mechanism includes a first fixing ring, which is installed in the middle of the bottom wall of the sealing lip. A limit ring is installed on the inner wall of the first fixing ring, and a second fixing ring is installed at the bottom of the first fixing ring.

[0009] As a further description of the above technical solution: The top walls of both the first and second fixing rings are provided with multiple mounting holes at equal intervals, and buffer components are installed inside the mounting holes.

[0010] As a further description of the above technical solution: The buffer assembly includes a damping rod, which is mounted on the inner wall of the mounting hole, and a spring is mounted on the outer wall of the damping rod.

[0011] As a further description of the above technical solution: A skeleton is installed on the outer side of the sealing lip, and the skeleton is fixedly connected to the outer wall of the sealing lip.

[0012] As a further description of the above technical solution: A fixing block is installed on the top wall of the sealing lip, and the fixing block is installed at equal intervals on the top wall of the sealing lip.

[0013] This utility model has the following beneficial effects: 1. In this utility model, the fixing ring is slid into the inner wall of the rubber block, and the protrusion on the outer wall of the fixing ring will be inserted into the groove at the bottom of the fixing ring. Then, multiple mounting blocks are placed into the second mounting groove, and the bottom of the mounting blocks will be inserted into the groove at the bottom of the outer wall of the fixing ring. Then, the rubber ring is put on, and the rubber ring is inserted into the third mounting groove and the first mounting groove to form a stable connection. The operation is convenient, and it is easy to install and disassemble. It prevents the frame and the rubber from not being tightly bonded, and the sealing ring from deforming and losing its sealing function after long-term use.

[0014] 2. In this utility model, the sealing ring is installed on the sealing surface of the item. The sealing surface compresses the fixing ring two. After the fixing ring two is squeezed, it further compresses the internal spring and damping rod to absorb pressure, prevent pressure concentration, reduce pressure damage to the sealing lip, and prevent the sealing lip from being asymmetrical with the sealing surface cross section. The sealing lip tilts to one side, resulting in uneven force. After long-term use, one side wears excessively, while the other side has insufficient sealing pressure, leading to uneven wear and sealing failure. Attached Figure Description

[0015] Figure 1 This is a perspective view of a rubber dustproof sealing ring proposed in this utility model; Figure 2 This is a front view of a rubber dustproof sealing ring proposed in this utility model; Figure 3 This is a top view of a rubber dustproof sealing ring proposed in this utility model; Figure 4 This is a partial structural schematic diagram of a rubber dustproof sealing ring proposed in this utility model; Figure 5 This is a partial structural exploded view of a rubber dustproof sealing ring proposed in this utility model.

[0016] Legend: 1. Sealing lip; 2. Skeleton; 3. Fixing mechanism; 301. Rubber block; 302. Mounting groove one; 303. Mounting groove two; 304. Mounting assembly; 3041. Rubber ring; 3042. Mounting groove three; 3043. Mounting block; 305. Groove; 306. Protrusion; 307. Fixing ring; 4. Elastic mechanism; 401. Fixing ring one; 402. Limiting ring; 403. Buffer assembly; 4031. Damping rod; 4032. Spring; 404. Mounting hole; 405. Fixing ring two; 5. Fixing block. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Reference Figure 1 , Figure 2 and Figure 4This utility model provides an embodiment of a rubber dustproof sealing ring, including a sealing lip 1. A fixing mechanism 3 is installed at the bottom of the sealing lip 1 to facilitate the installation and disassembly of the structure. An elastic mechanism 4 is installed in the middle of the bottom wall of the sealing lip 1 to improve the structural strength. The fixing mechanism 3 includes a rubber block 301, which is fixedly connected to the bottom wall of the sealing lip 1. Multiple mounting grooves 303 are equidistantly opened on the outer wall of the rubber block 301, and a mounting groove 302 is opened in the middle of the outer wall of the rubber block 301. The bottom wall of the rubber block 301 has a... The inner wall of the rubber block 301 is slidably connected to a fixing ring 307, and the top wall of the fixing ring 307 is fixedly connected to a protrusion 306. The protrusion 306 is slidably connected to the inner wall of the groove 305. An installation component 304 is installed on the outer side of the rubber block 301. The installation component 304 includes an installation block 3043, which is slidably connected to the inner wall of the second installation groove 303 and the fixing ring 307. An installation groove 3042 is opened in the lower middle part of the outer wall of the installation block 3043. A rubber ring 3041 is installed on the inner wall of the third installation groove 3042 and the first installation groove 302. Specifically, the fixing ring 307 is slid into the inner wall of the rubber block 301, and the protrusion 306 on the outer wall of the fixing ring 307 will be inserted into the groove 305 at the bottom of the fixing ring 307. Then, multiple mounting blocks 3043 are placed into the second mounting groove 303 respectively, and the bottom of the mounting block 3043 will be inserted into the groove at the bottom of the outer wall of the fixing ring 307. Then, the rubber ring 3041 is put on, and the rubber ring 3041 is inserted into the third mounting groove 3042 and the first mounting groove 302 to form a stable connection. The operation is convenient, and it is easy to install and disassemble. It prevents the frame 2 from not being tightly bonded to the rubber, and the sealing ring from deforming and losing its sealing function after long-term use.

[0019] Reference Figure 1 , Figure 4 and Figure 5 The elastic mechanism 4 includes a first fixing ring 401, which is installed in the middle of the bottom wall of the sealing lip 1. A limit ring 402 is installed on the inner wall of the first fixing ring 401, and a second fixing ring 405 is installed at the bottom of the first fixing ring 401. Multiple mounting holes 404 are equally spaced on the top walls of the first fixing ring 401 and the second fixing ring 405. A buffer assembly 403 is installed inside the mounting holes 404. The buffer assembly 403 includes a damping rod 4031, which is installed on the inner wall of the mounting hole 404. A spring 4032 is installed on the outer wall of the damping rod 4031. Specifically, the sealing ring is installed on the sealing surface of the item. The sealing surface compresses the fixing ring 405. After being compressed, the fixing ring 405 further compresses the internal spring 4032 and damping rod 4031 to absorb pressure, prevent pressure concentration, reduce pressure damage to the sealing lip 1, and prevent the sealing lip 1 from being asymmetrical with the sealing surface cross section. This prevents the sealing lip 1 from tilting to one side, resulting in uneven force. After long-term use, one side will wear excessively, while the other side will have insufficient sealing pressure, leading to uneven wear and sealing failure.

[0020] Reference Figure 1 , Figure 2 and Figure 3 A frame 2 is installed on the outer side of the sealing lip 1, and the frame 2 is fixedly connected to the outer wall of the sealing lip 1; a fixing block 5 is installed on the top wall of the sealing lip 1, and the fixing block 5 is installed at equal intervals on the top wall of the sealing lip 1. Specifically, the skeleton 2 serves to support and fix the sealing lip 1, so that the sealing ring maintains a stable shape and position during installation and use, enhances the overall strength and wear resistance of the sealing ring, and prevents it from being excessively deformed or displaced under pressure. The fixing block 5 increases the reliability of the seal and can also buffer the pressure between the sealing ring and the mechanical structure.

[0021] Working principle: First, the fixing ring 307 is slowly slid into the inner wall of the rubber block 301. During the sliding process, the protruding convex block 306 on the outer wall of the fixing ring 307 will be precisely aligned and embedded into the pre-designed groove 305 at the bottom of the fixing ring 307 to achieve initial positioning. Then, multiple matching mounting blocks 3043 are placed one by one into the second mounting groove 303. At this time, the bottom of the mounting block 3043 will be inserted into the specially set groove at the bottom of the outer wall of the fixing ring 307 to complete the second fixation. Then, the elastic rubber ring 3041 is put on the assembled part. The two ends of the rubber ring 3041 will be tightly inserted into the third mounting groove 3042 and the first mounting groove 302 respectively. Through this multi-locking structure, a very stable connection is formed. The entire installation process is reasonably designed and easy to operate. It is convenient for daily installation and easy to disassemble and maintain. It effectively avoids the problem of loose adhesion between the skeleton 2 and the rubber material, thereby preventing the sealing ring from deforming and losing its sealing function due to long-term use. When the sealing ring is installed on the sealing surface of the item, the sealing surface first applies a uniform compressive force to the retaining ring 405. After being compressed, the retaining ring 405 further transmits the pressure to the internally designed combination structure of spring 4032 and damping rod 4031. Through the synergistic effect of the elastic and damping elements, the pressure can be effectively absorbed and dispersed, avoiding excessive pressure concentration. This buffer design can significantly reduce the direct damage of pressure to the key component sealing lip 1, and prevent the sealing lip 1 from becoming asymmetrical with the sealing surface due to uneven force. If this buffer structure is lacking, the sealing lip 1 may tilt to one side, causing severe uneven force. After long-term use, this will lead to excessive wear on one side and insufficient sealing pressure on the other side, eventually causing uneven wear and sealing failure.

[0022] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rubber dustproof sealing ring, comprising a sealing lip (1), characterized in that: A fixing mechanism (3) is installed at the bottom of the sealing lip (1). The fixing mechanism (3) is used to facilitate the installation and disassembly of the structure. An elastic mechanism (4) is installed in the middle of the bottom wall of the sealing lip (1). The elastic mechanism (4) is used to improve the structural strength. The fixing mechanism (3) includes a rubber block (301), which is fixedly connected to the bottom wall of the sealing lip (1). The outer wall of the rubber block (301) is provided with a plurality of mounting grooves (303) at equal intervals. The middle part of the outer wall of the rubber block (301) is provided with a mounting groove (302). The bottom wall of the rubber block (301) is provided with a groove (305).

2. The rubber dustproof sealing ring according to claim 1, characterized in that: The inner wall of the rubber block (301) is slidably connected to a fixing ring (307), the top wall of the fixing ring (307) is fixedly connected to a protrusion (306), the protrusion (306) is slidably connected to the inner wall of the groove (305), and an installation component (304) is installed on the outer side of the rubber block (301).

3. The rubber dustproof sealing ring according to claim 2, characterized in that: The mounting component (304) includes a mounting block (3043), which is slidably connected to the inner wall of the mounting groove (303) and the fixing ring (307). The lower part of the outer wall of the mounting block (3043) is provided with a mounting groove (3042), and a rubber ring (3041) is installed on the inner wall of the mounting groove (3042) and the mounting groove (302).

4. The rubber dustproof sealing ring according to claim 3, characterized in that: The elastic mechanism (4) includes a first fixing ring (401), which is installed in the middle of the bottom wall of the sealing lip (1). A limit ring (402) is installed on the inner wall of the first fixing ring (401), and a second fixing ring (405) is installed at the bottom of the first fixing ring (401).

5. A rubber dustproof sealing ring according to claim 4, characterized in that: The top walls of the first fixing ring (401) and the second fixing ring (405) are provided with multiple mounting holes (404) at equal intervals, and a buffer assembly (403) is installed inside the mounting hole (404).

6. A rubber dustproof sealing ring according to claim 5, characterized in that: The buffer assembly (403) includes a damping rod (4031) which is mounted on the inner wall of the mounting hole (404) and a spring (4032) is mounted on the outer wall of the damping rod (4031).

7. The rubber dustproof sealing ring according to claim 1, characterized in that: A frame (2) is installed on the outer side of the sealing lip (1), and the frame (2) is fixedly connected to the outer wall of the sealing lip (1).

8. A rubber dustproof sealing ring according to claim 1, characterized in that: A fixing block (5) is installed on the top wall of the sealing lip (1), and the fixing block (5) is installed at equal intervals on the top wall of the sealing lip (1).

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