Outer dustproof structure of floating oil seal

Abstract

The utility model discloses a floating oil seal outer dustproof structure which comprises two floating seal seats, two floating seal rings and two O-shaped rings, the O-shaped rings are located between the floating seal seats and the floating seal rings, arc-shaped grooves are formed in the side walls of the floating seal rings, the O-shaped rings are located on the inner sides of the arc-shaped grooves, the outer sides of the two floating seal seats are provided with the same dustproof cover, and the outer sides of the two floating seal seats are provided with the same dustproof cover. Two first sealing mechanisms connected with the floating seal ring are arranged on the inner wall of the dust cover, and two second sealing mechanisms connected with the floating seal seat are arranged on the inner wall of the dust cover. According to the dustproof floating oil seal, the floating oil seal is sealed through dustproof design at multiple positions outside the floating oil seal, and the effect of good dustproof performance is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of floating oil seal dust prevention, in particular to an external dust prevention structure of a floating oil seal. Background Art

[0002] Floating oil seal is a common name for floating seal, which is a kind of mechanical seal in dynamic seal. In the process of mechanical sealing, floating oil seal is needed, but the existing floating oil seal usually lacks external dustproof structure. Dust can easily enter the floating oil seal through the gap of floating oil seal, resulting in increased wear of floating oil seal and reduced service life.

[0003] For example, the patent with publication number CN216589932U and titled "An Engineering Plastic Floating Oil Seal" discloses an engineering plastic floating oil seal, including two floating seal rings, slots are evenly and symmetrically provided on the adjacent sides of the two floating seal rings, and the inner side walls of the slots are provided with limit grooves, and two engineering plastic plates are symmetrically provided on the adjacent sides of the two floating seal rings, and the two engineering plastic plates have a uniform integrally formed limit rod on the repelling side. This patent has the above-mentioned problems. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a floating oil seal external dustproof structure.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A floating oil seal external dustproof structure comprises two floating seal seats, two floating seal rings and two O-rings, wherein the O-rings are located between the floating seal seats and the floating seal rings, an arc groove is provided on the side wall of the floating seal ring, the O-rings are located on the inner side of the arc groove, a same dust cover is provided on the outer side of the two floating seal seats, two first sealing mechanisms connected to the floating seal rings are provided on the inner wall of the dust cover, and two second sealing mechanisms connected to the floating seal seats are provided on the inner wall of the dust cover.

[0007] As a further improvement of the present invention, the first sealing mechanism includes a dustproof ring fixedly connected to the side wall of the floating seal ring, the first sealing ring is fixedly connected to the inner wall of the dust cover, and the side wall of the dustproof ring is provided with a groove that cooperates with the first sealing ring.

[0008] As a further improvement of the present invention, the second sealing mechanism includes a second sealing ring fixedly connected to the inner side wall of the dust cover, and a second sealing groove cooperating with the second sealing ring is provided on the side wall of the floating seal seat.

[0009] As a further improvement of the utility model, a first sealing groove cooperating with the first sealing ring is provided on the side wall of the floating seal ring.

[0010] As a further improvement of the utility model, a limiting flange is fixed on the inner wall of the floating seal seat.

[0011] As a further improvement of the present invention, dust covers are fixedly connected to two opposite side walls of the dust cover, and the dust covers are made of rubber.

[0012] Beneficial effects of the utility model:

[0013] By providing a dustproof sleeve, the connection between the floating seal ring and the shaft can be sealed to achieve a dustproof effect.

[0014] By arranging a dustproof cover, the floating seal seat and the outside of the floating seal ring can be protected from dust.

[0015] By providing the first sealing mechanism and the second sealing mechanism, dust is prevented from entering the floating oil seal through the gap between the floating seal ring and the floating seal seat, thereby sealing the floating oil seal and achieving a good dustproof performance.

[0016] The utility model seals the floating oil seal by means of dustproof designs at multiple locations outside the floating oil seal, thereby achieving a good dustproof effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of a floating oil seal external dustproof structure proposed by the utility model;

[0018] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0019] Figure 3 for Figure 1 Enlarged view of point B in the middle;

[0020] Figure 4 The utility model is a three-dimensional structural schematic diagram of a dustproof sleeve of a floating oil seal outer dustproof structure.

[0021] In the figure: 1 floating seal seat, 2 floating seal ring, 3 O-ring, 4 limiting flange, 5 arc groove, 6 dust cover, 7 dust cover, 8 dust ring, 9 clamping groove, 10 first sealing groove, 11 first sealing ring, 12 second sealing ring, 13 second sealing groove. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Figure 1-Figure 4, a floating oil seal external dustproof structure, comprising two floating seal seats 1, two floating seal rings 2, and two O-rings 3, the O-ring 3 is located between the floating seal seat 1 and the floating seal ring 2, an arc groove 5 is provided on the side wall of the floating seal ring 2, the O-ring 3 is located on the inner side of the arc groove 5, and a limiting flange 4 is fixed on the inner wall of the floating seal seat 1. The arc structure design of the arc groove 5 itself can make the O-ring 3 stably located inside the arc groove 5, and further through the limiting flange 4, the O-ring 3 can be limited to further improve the stability of the O-ring 3 inside the arc groove 5, the outer sides of the two floating seal seats 1 are provided with the same dust cover 7, the inner wall of the dust cover 7 is provided with two first sealing mechanisms connected to the floating seal ring 2, the inner wall of the dust cover 7 is provided with two second sealing mechanisms connected to the floating seal seat 1, and further the opposite side walls of the dust cover 7 are fixedly connected with dust cover 6, the dust cover 6 is made of rubber material, and can seal the connection between the floating seal ring 2 and the shaft to achieve dustproof effect.

[0024] In the utility model, the first sealing mechanism comprises a dustproof ring 8 fixedly connected to the side wall of the floating seal ring 2, a first sealing ring 11 is fixedly connected to the inner wall of the dustproof cover 7, and a groove 9 matching with the first sealing ring 11 is provided on the side wall of the dustproof ring 8.

[0025] The specific second sealing mechanism comprises a second sealing ring 12 fixedly connected to the inner side wall of the dust cover 7 , and a second sealing groove 13 cooperating with the second sealing ring 12 is provided on the side wall of the floating seal seat 1 .

[0026] The first sealing ring 11 cooperates with the dustproof ring 8 and the second sealing ring 12 cooperates with the second sealing groove 13 to prevent dust from entering the floating oil seal through the gap between the floating seal ring 2 and the floating seal seat 1, thereby achieving a dustproof sealing effect.

[0027] Furthermore, a first sealing groove 10 cooperating with the first sealing ring 11 is provided on the side wall of the floating seal ring 2. The first sealing ring 11 is in tight contact with the inner wall of the first sealing groove 10 to enhance the sealing performance.

[0028] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A floating oil seal external dustproof structure, comprising two floating seal seats (1), two floating seal rings (2), and two O-rings (3), wherein the O-rings (3) are located between the floating seal seats (1) and the floating seal rings (2), and characterized in that: An arc groove (5) is provided on the side wall of the floating seal ring (2), the O-ring (3) is located on the inner side of the arc groove (5), the outer sides of the two floating seal seats (1) are provided with a same dust cover (7), the inner wall of the dust cover (7) is provided with two first sealing mechanisms connected to the floating seal ring (2), and the inner wall of the dust cover (7) is provided with two second sealing mechanisms connected to the floating seal seats (1).

2. A floating oil seal outer dustproof structure according to claim 1, characterized in that: The first sealing mechanism comprises a dustproof ring (8) fixedly connected to the side wall of the floating seal ring (2), a first sealing ring (11) fixedly connected to the inner wall of the dustproof cover (7), and a groove (9) cooperating with the first sealing ring (11) is provided on the side wall of the dustproof ring (8).

3. The floating oil seal outer dustproof structure according to claim 1, characterized in that: The second sealing mechanism comprises a second sealing ring (12) fixedly connected to the inner side wall of the dust cover (7), and a second sealing groove (13) cooperating with the second sealing ring (12) is provided on the side wall of the floating seal seat (1).

4. A floating oil seal outer dustproof structure according to claim 2, characterized in that: A first sealing groove (10) cooperating with the first sealing ring (11) is provided on the side wall of the floating seal ring (2).

5. The floating oil seal outer dustproof structure according to claim 1, characterized in that: A limiting flange (4) is fixed on the inner wall of the floating seal seat (1).

6. A floating oil seal outer dustproof structure according to claim 1, characterized in that: Dust covers (6) are fixedly connected to opposite side walls of the dust cover (7), and the dust covers (6) are made of rubber.

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