A new flexible floating oil seal seal

Abstract

The application relates to the technical field of sealings, and discloses a novel flexible floating oil seal sealing element which comprises a rubber element, a framework and a dustproof lip, a connecting structure is arranged between the dustproof lip and the framework, the connecting structure comprises a connecting column and a fixing block, a first perforation and a first opening are formed in the dustproof lip, the first opening is communicated with the first perforation, the rubber element comprises a protection part, a second perforation and a second opening are formed in the protection part, a first insertion slot and a second insertion slot are formed in one side of the framework facing the dustproof lip, the first perforation, the second perforation and the first insertion slot can be inserted by the connecting column, the first opening, the second opening and the second insertion slot can be inserted by the fixing block, an arc-shaped clamping groove is formed in the inner circumferential surface of the first insertion slot, the arc-shaped clamping groove can be inserted by the fixing block, a locking structure for locking the fixing block is arranged in the framework, the fixing block is unlocked or locked through the locking structure, the dustproof lip is replaced, and the oil seal maintenance cost is reduced.

Description

Technical Field

[0001] This application relates to the technical field of sealing components, and in particular to a novel flexible floating oil seal component. Background Technology

[0002] Oil seals are mechanical sealing elements whose core function is to prevent internal lubricating media from leaking out of the working system and to prevent external contaminants from entering the sealing area. They are widely used in mechanical equipment where rotating shafts protrude from the housing and require sealing, such as one end of the motor output shaft of a drive motor in a new energy vehicle.

[0003] An oil seal typically consists of a metal skeleton, an elastic sealing body, and a dust lip. The elastic sealing body encloses and is fixedly connected to the metal skeleton, while the dust lip is integrally formed with the elastic sealing body. During operation, when the dust lip is covered by mud or other contaminants, it prevents these external pollutants from entering between the dust lip and the elastic sealing body under external force. After a period of use, the sealing effect of the dust lip decreases, and it becomes less effective at blocking mud and other impurities. Therefore, the dust lip needs to be replaced. Since the dust lip is integrally formed with the elastic sealing body and cannot be disassembled, the entire oil seal must be replaced, resulting in high replacement costs. Utility Model Content

[0004] To address the issue that the entire seal must be replaced when the sealing effect of the dust lip deteriorates, this application provides a novel flexible floating oil seal.

[0005] This application provides a novel flexible floating oil seal, which adopts the following technical solution:

[0006] A novel flexible floating oil seal includes a rubber component and a skeleton, and a dust lip. A connecting structure connects the dust lip and the skeleton, comprising a connecting post and a fixing block connected to the outer circumferential surface of the connecting post. The dust lip has a first through hole and a first opening, the first opening communicating with the first through hole along its axis. The rubber component includes a protective portion, which has a second through hole communicating with the first through hole and a second opening communicating with the first opening. The skeleton has a portion communicating with the second through hole on its side facing the dust lip. The first slot is connected to the second slot, and the second slot is connected to the second opening. The first through hole, the second through hole, and the first slot can all be used to insert a connecting post. The first opening, the second opening, and the second slot can all be used to insert a fixing block. The inner circumferential surface of the first slot is provided with an arc-shaped groove. The arc-shaped groove is connected to the second slot along one side of the first slot in the circumferential direction. The arc-shaped groove can be used to insert a fixing block. The frame is provided with a locking structure for locking the fixing block. The end of the connecting post away from the frame is fixedly connected to an operating block. The operating block is located outside the first through hole and abuts against the dustproof lip.

[0007] By adopting the above technical solution, the fixing block is unlocked by the locking structure, allowing it to move out of the arc-shaped slot, the second slot, the second opening, and the first opening in sequence. During the removal of the fixing block, the connecting post passes through the first slot, the second through hole, and the first through hole in sequence and separates from the dust lip. The dust lip is then unlocked from the skeleton, allowing it to be separated from the skeleton and removed. To replace the dust lip, the connecting post passes through the first through hole and connects to the dust lip. The connecting post is moved so that it passes through the first through hole and the first slot, and the fixing block passes through the first opening, the second opening, and the second slot. The rotating operating block drives the connecting post and the fixing block to rotate. When the fixing block is inserted into the arc-shaped slot, the end of the fixing block away from the connecting post abuts against the inner wall of the arc-shaped slot. The locking structure locks the fixing block, preventing the fixing block, the connecting post, and the operating block from rotating. The dust lip and the skeleton are connected and fixed through the connecting structure, thus realizing the replacement of the dust lip and reducing the oil seal maintenance cost.

[0008] Optionally, a receiving cavity is formed on the circumferential surface of the arc-shaped slot, and the locking structure includes a first magnetic block and a locking spring disposed in the receiving cavity. One end of the locking spring is fixedly connected to the first magnetic block, and the other end of the locking spring is connected to the inner wall of the receiving cavity away from the first slot. A fixing groove for the first magnetic block to be inserted is formed on the side of the fixing block away from the connecting post. When the first magnetic block is inserted into the fixing groove, the locking spring is in a compressed state.

[0009] By adopting the above technical solution, after the fixing block is inserted into the arc-shaped slot, the first magnetic block is inserted into the fixing slot, the locking spring is in a compressed state, the compression of the locking spring generates elastic force, and the first magnetic block is pressed against one end of the fixing block under the action of elastic force and restricts the displacement of the fixing block.

[0010] Optionally, the dustproof lip has a sliding hole in the shape of an elongated hole, the length direction of which is consistent with the length direction of the receiving cavity. The protective part has a connecting groove in the shape of an elongated slot, the length direction of which is consistent with the length direction of the sliding hole. The connecting groove communicates with the sliding hole. The dustproof lip has a second magnetic block located directly below the first magnetic block. One end of the second magnetic block is slidably disposed in the sliding hole. There is a magnetic force between the first magnetic block and the second magnetic block that attracts each other.

[0011] By adopting the above technical solution, the second magnetic block is placed in the sliding hole, and the first magnetic block and the second magnetic block attract each other. When the second magnetic block is slid, the first magnetic block moves in the direction of the second magnetic block under the action of magnetic force. When the first magnetic block is moved out of the fixed groove, the fixed block is unlocked, which makes it easy for the staff to separate the frame from the dustproof lip.

[0012] Optionally, the rubber component further includes a sealing part, the outer peripheral surface of which is provided with an operating ring groove, and an annular spring is provided in the operating ring groove.

[0013] By adopting the above technical solution, during the process of fitting the oil seal onto the motor output shaft, the annular spring is stretched to generate radial force, which compresses the sealing lip to make the interference fit between the sealing lip and the motor output shaft tighter, reduces the gap between the sealing lip and the motor output shaft, and improves the sealing effect.

[0014] Optionally, the rubber part further includes a mating part, the outer circumferential surface of which is provided with an arc-shaped protrusion, the arc-shaped protrusion being elastic.

[0015] By adopting the above technical solution, when the oil seal is fitted onto the motor output shaft, the arc-shaped convex ring is compressed and deformed, generating elastic force to recover the deformation, so that the outer peripheral surface of the oil seal fits tightly against the wall of the motor output shaft hole, thereby increasing the sealing performance.

[0016] Optionally, an installation block is fixedly connected to the inner wall of the first perforation. The installation block is elastic, and the inner wall of the connecting column that abuts against the first perforation has an installation groove for the installation block to be inserted.

[0017] By adopting the above technical solution, when the connecting post passes through the first through hole, the mounting block deforms and inserts into the mounting groove, thereby improving the stability of the connection between the connecting post and the first through hole.

[0018] Optionally, the dustproof lip is provided with a positioning block at one end facing the protective part, and the protective part is provided with a positioning groove for the positioning block to be inserted at one end facing the dustproof lip.

[0019] By adopting the above technical solution, when the positioning block can be inserted into the positioning slot, the first through hole, the second through hole and the first slot are aligned, which facilitates the insertion of the first connecting post into the first through hole, the second through hole and the first slot.

[0020] Optionally, the dustproof lip is elastic, and the inner side of the dustproof lip can be bent away from the skeleton.

[0021] By adopting the above technical solution, bending the dustproof lip can improve the connection effect between the oil seal and the motor output shaft, reduce the gap between the dustproof lip and the motor output shaft, and improve the sealing effect.

[0022] Optionally, multiple connection structures are provided, and the multiple connection structures are distributed circumferentially along the seal.

[0023] By adopting the above technical solutions, the arrangement of multiple connection structures can improve the stability of the connection between the skeleton and the dustproof lip.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. By adopting the above technical solution, the fixing block is unlocked by the locking structure, allowing it to move out of the arc-shaped slot, the second slot, the second opening, and the first opening in sequence. During the removal of the fixing block, the connecting post passes through the first slot, the second through hole, and the first through hole in sequence and separates from the dust lip. The dust lip is unlocked from the skeleton, allowing the dust lip to be separated from the skeleton and removed. To replace the dust lip, the connecting post passes through the first through hole and connects to the dust lip. The connecting post is moved so that it passes through the first through hole and the first slot. The fixing block passes through the first opening, the second opening, and the second slot. The rotating operating block drives the connecting post and the fixing block to rotate. When the fixing block is inserted into the arc-shaped slot, the end of the fixing block away from the connecting post abuts against the inner wall of the arc-shaped slot. The locking structure locks the fixing block, preventing the fixing block, the connecting post, and the operating block from rotating. The dust lip and the skeleton are connected and fixed through the connecting structure, realizing the replacement of the dust lip and reducing the oil seal maintenance cost.

[0026] 2. During the process of the connecting post passing through the first through hole, the mounting block is inserted into the mounting groove, making it difficult for the connecting post to fall out of the first through hole and fixing the connecting post; the second magnetic block in the sliding hole drives the first magnetic block that abuts against the fixing block to move. When the first magnetic block moves away from the fixing block along with the second magnetic block until the first magnetic block moves out of the fixing groove, the fixing block can be unlocked. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a structural schematic diagram of an embodiment of this application;

[0029] Figure 2 This is a partial cross-sectional view of an embodiment of this application;

[0030] Figure 3 It is a partial sectional view highlighting the connection structure;

[0031] Figure 4 This is a partial cross-sectional view highlighting the locking structure.

[0032] Reference numerals: 1. Rubber part; 11. Mating part; 12. Protective part; 121. Second perforation; 122. Second opening; 123. Connecting groove; 13. Sealing part; 14. Through hole; 15. Arc-shaped convex ring; 16. Operating ring groove; 17. Ring spring; 18. Mounting ring groove; 19. Fixing ring groove; 191. Positioning groove; 2. Frame; 21. First slot; 22. Second slot; 23. Arc-shaped slot; 24. Receiving cavity; 3. Dustproof lip; 31. First perforation; 32. First opening; 33. Mounting block; 34. Positioning block; 35. Sliding hole; 36. Sliding groove; 4. Connecting structure; 41. Connecting column; 42. Fixing block; 43. Operating block; 44. Mounting groove; 45. Fixing groove; 5. Locking structure; 51. First magnet; 52. Locking spring; 53. Second magnet. Detailed Implementation

[0033] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0034] This embodiment discloses a novel flexible floating oil seal. (Refer to...) Figure 1 A novel flexible floating oil seal includes a rubber component 1, a skeleton 2, and a dustproof lip 3.

[0035] Reference Figure 2 The rubber component 1 includes a mating part 11, a protective part 12, and a sealing part 13. A through hole 14 is provided on the end face of the protective part 12. Both the mating part 11 and the sealing part 13 are connected to one end face of the protective part 12. The sealing part 13 is located inside the mating part 11. An elastic arc-shaped protrusion 15 is provided on the outer circumferential surface of the mating part 11.

[0036] Reference Figure 2 An operating ring groove 16 is provided on the outer circumferential surface of the sealing part 13, and an annular spring 17 is provided in the operating ring groove 16, extending to the outside of the operating ring groove 16. The annular spring 17 applies a contraction force to the sealing part 13 towards the center.

[0037] Reference Figure 2 The frame 2 is ring-shaped and fits over the sealing part 13. The sealing part 13 has a mounting groove 18 for inserting the frame 2. The side of the frame 2 away from the annular spring 17 is in contact with the protective part 12. The surface of the frame 2 away from the center line contacts the mating part 11, and the side of the frame 2 away from the center line extends away from the protective part 12.

[0038] Reference Figure 2 A fixing ring groove 19 is provided on the side of the protective part 12 away from the mating part 11. The fixing ring groove 19 surrounds the through hole 14, and the inner side of the fixing ring groove 19 communicates with the through hole 14.

[0039] Reference Figure 2The dustproof lip 3 is set in the fixed ring groove 19. The dustproof lip 3 is a flexible elastic element with elasticity. When the oil seal is fitted onto the motor output shaft of the motor, the inner side of the dustproof lip 3 bends away from the ring spring 17.

[0040] Reference Figure 3 Four connecting structures 4 are provided between the dustproof lip 3 and the skeleton 2. The four connecting structures 4 are distributed around the circumference of the dustproof lip 3. The connecting structure 4 includes a connecting post 41, a fixing block 42, and an operating block 43.

[0041] Reference Figure 3 The dustproof lip 3 has a first through hole 31 for the connecting post 41 to pass through and a first opening 32 for the fixing block 42 to pass through at one end facing the frame 2. The first opening 32 is connected to the first through hole 31 in the direction of the axis of the first through hole 31. The number of first openings 32 and first through holes 31 is the same as the number of connecting structures 4.

[0042] Reference Figure 3 The operating block 43 is fixedly connected to the end of the connecting post 41 away from the frame 2. The operating block 43 is located outside the first through hole 31 and abuts against the dustproof lip 3.

[0043] Reference Figure 3 The protective part 12 has a second through hole 121 and a second opening 122 on one end near the dust lip 3. The second opening 122 communicates with the second through hole 121 in the direction of its axis. The second through hole 121 communicates with the first through hole 31, and the second opening 122 communicates with the first opening 32. The number of second through holes 121 is the same as the number of first through holes 31, and the number of second openings 122 is the same as the number of first openings 32.

[0044] Reference Figure 3 and Figure 4 The frame 2 has a first slot 21 and a second slot 22 at the end facing the dustproof lip 3. The first slot 21 communicates with the second through hole 121, and the second slot 22 communicates with the second through hole 122. The inner circumferential surface of the first slot 21 has an arc-shaped groove 23 for inserting the fixing block 42. The arc-shaped groove 23 is located on the side of the second slot 22 near the axis of the through hole 14. The arc-shaped groove 23 communicates with the second slot 22 along the circumferential side of the first slot 21. When the connecting structure 4 connects the frame 2, the protective part 12, and the dustproof lip 3, the connecting post 41 passes through the first through hole 31 and the second through hole 121 and is inserted into the first slot 21; the fixing block 42 passes through the first through hole 32 and the second through hole 122 and is inserted into the second slot 22. The fixing block 42 is inserted into the arc-shaped groove 23 during the rotation driven by the connecting post 41.

[0045] Reference Figure 3A mounting groove 44 is provided on the connecting column 41. A mounting block 33 is provided on the inner wall of the first through hole 31. The mounting block 33 is fixedly connected to the inner wall of the first through hole 31 and is elastic. The end face of the mounting block 33 facing the axis of the first through hole 31 is an arc-shaped surface. The mounting block 33 is inserted into the mounting groove 44.

[0046] Reference Figure 2 and Figure 3 Two positioning grooves 191 are formed on the bottom wall of the fixed ring groove 19, and the two positioning grooves 191 are arranged in a circular array around the axis of the through hole 14. Neither the second through hole 121 nor the second opening 122 communicates with the positioning grooves 191. A positioning block 34 inserted into the positioning groove 191 is fixedly connected to the end of the dustproof lip 3 facing the protective part 12.

[0047] Reference Figure 3 and Figure 4 The frame 2 is equipped with a locking structure 5. After the fixing block 42 is inserted into the arc-shaped slot 23, it is locked by the locking structure 5. The number of locking structures 5 is the same as the number of connected structures. The locking structure 5 includes a first magnetic block 51, a locking spring 52, and a second magnetic block 53.

[0048] Reference Figure 4 The outer circumferential surface of the arc-shaped slot 23 has a receiving cavity 24. The receiving cavity 24 is located at the end of the arc-shaped slot 23 near the motor output shaft. The receiving cavity 24 is connected to the arc-shaped slot 23.

[0049] Reference Figure 4 The first magnetic block 51 is placed inside the receiving cavity 24. One end of the first magnetic block 51 is fixedly connected to the locking spring 52. The end of the locking spring 52 away from the first magnetic block 51 is fixedly connected to the inner wall of the receiving cavity 24 away from the first slot 21. The fixing block 42 has a fixing groove 45 at the end facing the first magnetic block 51, which allows the first magnetic block 51 to be inserted. When the first magnetic block 51 is inserted into the fixing groove 45, the locking spring 52 is in a compressed state.

[0050] Reference Figure 3 The dustproof lip 3 has an elongated sliding hole 35 at its end furthest from the frame 2, and the length direction of the sliding hole 35 is consistent with the length direction of the dustproof lip 3. The protective part 12 has an elongated connecting groove 123 at its end furthest from the frame 2, and the length direction of the connecting groove 123 is consistent with the length direction of the dustproof lip 3. The connecting groove 123 communicates with the sliding hole 35.

[0051] Reference Figure 3 and Figure 4A second magnetic block 53 is slidably disposed within the sliding hole 35, located directly below the first magnetic block 51. One end of the second magnetic block 53 is inserted into the connecting groove 123. The sliding direction of the second magnetic block 53 is consistent with the length direction of the dustproof lip 3. There is a mutual magnetic attraction between the first magnetic block 51 and the second magnetic block 53, and the magnetic force between the first magnetic block 51 and the second magnetic block 53 is greater than the elastic force of the locking spring 52 locking the fixing block 42.

[0052] Reference Figure 3 The sliding hole 35 has two inner walls with grooves 36 along the width direction. The second magnetic block 53 is fixedly connected with a sliding piece inserted into the groove 36. The sliding piece is slidably disposed in the groove 36.

[0053] The implementation principle of a novel flexible floating oil seal in this application embodiment is as follows: The second magnetic block 53 is placed in the sliding hole 35, and the first magnetic block 51 and the second magnetic block 53 attract each other. When the second magnetic block 53 slides, the first magnetic block 51 moves in the direction of the sliding of the second magnetic block 53 under the action of magnetic force. When the first magnetic block 51 is moved out of the fixing groove 45, the fixing block 42 is unlocked. The fixing block 42 is moved out of the arc-shaped slot 23, the second slot 22, the second opening 122 and the first opening 32 in sequence. During the removal of the fixing block 42, the connecting post 41 passes through the first slot 21, the second through hole 121 and the first through hole 31 in sequence and separates from the dustproof lip 3. The dustproof lip 3 is unlocked from the skeleton 2, and the dustproof lip 3 can be separated from the skeleton 2 and removed. Dust lip 3; Replace the new dust lip 3, connect the connecting post 41 through the first through hole 31 and connect it to the dust lip 3, move the connecting post 41 so that it passes through the first through hole 31, the second through hole 121 and the first slot 21, and pass the fixing block 42 through the first opening 32, the second opening 122 and the second slot 22, rotate the operating block 43 to drive the connecting post 41 and the fixing block 42 to rotate, when the fixing block 42 is inserted into the arc-shaped slot 23, the end of the fixing block 42 away from the connecting post 41 abuts against the inner wall of the arc-shaped slot 23, the locking structure 5 locks the fixing block 42, so that the fixing block 42, the connecting post 41 and the operating block 43 cannot rotate, the dust lip 3 and the skeleton 2 are connected and fixed through the connecting structure 4, realizing the replacement of the dust lip 3 and reducing the oil seal maintenance cost.

[0054] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," "third," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "an" or "a" and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including" and similar terms mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including" and their equivalents, and do not exclude other elements or objects. "Above," "below," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0055] The above description is only a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the design concept of this application should be included within the protection scope of this application.

Claims

1. A novel flexible floating oil seal, comprising a rubber component (1) and a skeleton (2), characterized in that: It also includes a dustproof lip (3), and a connecting structure (4) is provided between the dustproof lip (3) and the skeleton (2) to connect the two. The connecting structure (4) includes a connecting post (41) and a fixing block (42) connected to the outer circumferential surface of the connecting post (41). The dustproof lip (3) is provided with a first through hole (31) and a first opening (32). The first opening (32) is connected to the first through hole (31) in the direction of the axis of the first through hole (31). The rubber part (1) includes a protective part (12). The protective part (12) is provided with a second through hole (121) connected to the first through hole (31) and a second opening (122) connected to the first opening (32). The skeleton (2) is provided with a first slot (21) connected to the second through hole (121) and a second opening (122) connected to the second opening (121) on the side facing the dustproof lip (3). 22) The second slot (22) is connected. The first through hole (31), the second through hole (121) and the first slot (21) can all be used for the insertion of the connecting post (41). The first opening (32), the second opening (122) and the second slot (22) can all be used for the insertion of the fixing block (42). The inner circumferential surface of the first slot (21) is provided with an arc-shaped slot (23). The arc-shaped slot (23) is connected to the second slot (22) on one side of the first slot (21) along the circumference. The arc-shaped slot (23) can be used for the insertion of the fixing block (42). The frame (2) is provided with a locking structure (5) for locking the fixing block (42). The end of the connecting post (41) away from the frame (2) is fixedly connected to an operating block (43). The operating block (43) is located outside the first through hole (31) and abuts against the dustproof lip (3).

2. The novel flexible floating oil seal according to claim 1, characterized in that: The arc-shaped slot (23) has a receiving cavity (24) on its circumferential surface. The locking structure (5) includes a first magnetic block (51) and a locking spring (52) disposed in the receiving cavity (24). One end of the locking spring (52) is fixedly connected to the first magnetic block (51), and the other end of the locking spring (52) is connected to the inner wall of the receiving cavity (24) away from the first slot (21). The fixing block (42) has a fixing groove (45) on the side away from the connecting post (41) for the first magnetic block (51) to be inserted. When the first magnetic block (51) is inserted into the fixing groove (45), the locking spring (52) is in a compressed state.

3. The novel flexible floating oil seal according to claim 2, characterized in that: The dustproof lip (3) has a long, narrow sliding hole (35) with the length direction of the sliding hole (35) aligned with the length direction of the receiving cavity (24). The protective part (12) has a long, narrow connecting groove (123) with the length direction of the connecting groove (123) aligned with the length direction of the sliding hole (35). The connecting groove (123) is connected to the sliding hole (35). The dustproof lip (3) has a second magnetic block (53) located directly below the first magnetic block (51). One end of the second magnetic block (53) is slidably disposed in the sliding hole (35). There is a magnetic force between the first magnetic block (51) and the second magnetic block (53).

4. The novel flexible floating oil seal according to claim 1, characterized in that: The rubber component (1) also includes a sealing part (13), the outer peripheral surface of which is provided with an operating ring groove (16), and an annular spring (17) is provided in the operating ring groove (16).

5. A novel flexible floating oil seal according to claim 1, characterized in that: The rubber part (1) also includes a mating part (11), the outer circumferential surface of which is provided with an arc-shaped protrusion (15), the arc-shaped protrusion (15) being elastic.

6. The novel flexible floating oil seal according to claim 1, characterized in that: An installation block (33) is fixedly connected to the inner wall of the first perforation (31). The installation block (33) is elastic. The inner wall of the connecting column (41) that abuts against the first perforation (31) is provided with an installation groove (44) for the installation block (33) to be inserted.

7. A novel flexible floating oil seal according to claim 1, characterized in that: The dustproof lip (3) is provided with a positioning block (34) at one end facing the protective part (12), and the protective part (12) is provided with a positioning groove (191) for the positioning block (34) to be inserted at one end facing the dustproof lip (3).

8. The novel flexible floating oil seal according to claim 1, characterized in that: The dustproof lip (3) is elastic, and the inner side of the dustproof lip (3) can be bent away from the skeleton (2).

9. A novel flexible floating oil seal according to claim 1, characterized in that: The connecting structure (4) is provided in multiple ways, and the multiple connecting structures (4) are distributed circumferentially along the dustproof lip (3).

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