Waterproof framework oil seal

Abstract

The utility model discloses a waterproof framework oil seal which comprises a sealing ring, an oil seal seat, a dust shell and a spring, the sealing ring comprises a first body and a first ring body, the first ring body axially extends along the inner edge and the outer edge of the first body, and a containing cavity is formed between the first body and the first ring body; the oil seal seat comprises a second body and a second ring body, and the second ring body axially extends along the inner edge of the second body; the dust shell comprises a third body and a third ring body, the third ring body extends in the axial direction of the inner edge of the third body, and the third body protrudes in the direction opposite to the extending direction of the third ring body to form a containing cavity; the spring is mounted in the accommodating cavity of the sealing ring; during use, the third ring body of the dust shell is inserted into the first body from the end face, provided with the containing cavity, of the sealing ring, and the second ring body of the oil seal seat is inserted from the end face, away from the containing cavity, of the sealing ring. Through the combined structure of the sealing ring, the oil seal seat and the dust shell, water and dust are effectively prevented from entering the bearing, and the sealing performance is remarkably improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of oil seal, concretely relates to a waterproof framework oil seal. BACKGROUND

[0002] In mechanical equipment, oil seal as a key sealing assembly, its main role is to prevent the leakage of working medium (such as lubricating oil) and the invasion of external impurities (such as water, dust). The traditional oil seal mostly adopts the overall structure design, and this design exposes many problems in practical application. For example, due to the limitation of single material and structure, the sealing performance of the traditional oil seal is often not ideal, especially when facing water and other liquids, leakage phenomenon is easy to occur, and then internal bearings or other mechanical parts are damaged or failed due to water. In addition, the safety factor of the traditional oil seal is relatively low, and the service life is also short, which cannot meet the demand of modern industry for high-performance, long-life mechanical parts. With the development of technology and the increasing complexity of application environment, the market demand for high-performance oil seal is increasingly urgent, especially in some special working conditions, such as high humidity environment, frequent temperature change condition, a kind of oil seal product that can effectively prevent water, durable and easy to install and maintain is needed.

[0003] Therefore, the utility model proposes an improved waterproof framework oil seal in view of the deficiencies in the prior art. CONTENT OF UTILITY MODEL

[0004] The utility model proposes a waterproof framework oil seal, which aims to improve the sealing effect of the oil seal, enhance its waterproof performance, and ensure that the oil seal has good durability and long service life to adapt to more extensive application scenarios.

[0005] To achieve its purpose, the utility model adopts the following technical solutions:

[0006] A waterproof framework oil seal, comprising: a sealing ring, the sealing ring comprising a first body and a first ring body, the first ring body extending axially along the inner and outer edges of the first body, and a receiving cavity being formed between the first body and the first ring body; an oil seal seat, the oil seal seat comprising a second body and a second ring body, the second ring body extending axially along the inner edge of the second body; a dust shell, the dust shell comprising a third body and a third ring body, the third ring body extending axially along the inner edge of the third body, and the third body being raised in the opposite direction of the third ring body to form a receiving cavity; a spring, the spring being installed in the receiving cavity of the sealing ring; in use, the third ring body of the dust shell is inserted into the inner side of the first body from the end face of the sealing ring that sets the receiving cavity, and the second ring body of the oil seal seat is inserted from the end face of the sealing ring away from the receiving cavity.

[0007] As a preferred, the end face of the first body away from the receiving cavity is provided with a waterproof groove.

[0008] Preferably, the waterproof groove is provided with an annular sealing protrusion outside.

[0009] Preferably, the sealing ring is made of rubber.

[0010] The utility model discloses the beneficial effect:

[0011] (1) the sealing performance is improved obviously: through the combination structure of sealing ring, oil seal seat and dust shell, effectively prevent water and dust from entering the bearing inside, the sealing performance is improved obviously;

[0012] (1) excellent waterproof performance: through introducing the unique sealing ring design, including waterproof groove and annular sealing protrusion on the first body, the waterproof ability of oil seal is greatly enhanced, effectively prevent external moisture from entering the bearing inside, protect the internal mechanical parts from damage.

[0013] (2) prolong the service life: the sealing ring of rubber material not only provides excellent elastic recovery force, and has excellent wear resistance and anti-aging characteristics, thereby guaranteeing the long-term stable operation of oil seal, reduces the replacement frequency, saves the repair time, reduces the maintenance cost.

[0014] (3) optimization structure design: the sealing ring, oil seal seat and dust shell are combined ingeniously, form a compact and efficient sealing system, make the cooperation between each component more closely, improve the overall assembly accuracy, simplify the installation process.

[0015] (4) improve safety: strengthen the protection of internal bearings and other important components, avoid the security risk caused by poor sealing, provide reliable guarantee for the normal operation of equipment. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to easily illustrate, the utility model is described in detail by the following specific implementation and drawing.

[0017] Figure 1 It is the structure schematic drawing of assembly state for this embodiment;

[0018] Figure 2 It is the assembly state overhead view schematic drawing for this embodiment;

[0019] Figure 3 It is the structure schematic drawing of sealing ring for this embodiment;

[0020] Figure 4 It is the structure schematic drawing of the other side of sealing ring for this embodiment

[0021] Figure 5 It is the structure schematic drawing of oil seal seat for this embodiment;

[0022] Figure 6This is a schematic diagram of the dust casing in this embodiment.

[0023] In the picture:

[0024] 100 - Sealing ring; 110 - First body; 111 - Waterproof groove; 112 - Sealing protrusion; 120 - First ring body; 200 - Oil seal seat; 210 - Second body; 220 - Second ring body; 300 - Dust shell; 310 - Third body; 320 - Third ring body; 400 - Spring. Detailed Implementation

[0025] The following are specific embodiments of the present invention described in conjunction with the accompanying drawings, further illustrating the technical solution of the present invention. However, the present invention is not limited to these embodiments. Specific details such as particular configurations and components are provided in the following description merely to aid in a comprehensive understanding of the embodiments of the present invention. Therefore, those skilled in the art should understand that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present invention. Furthermore, for clarity and brevity, descriptions of known functions and structures have been omitted.

[0026] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0027] like Figures 1-6 As shown, a waterproof skeleton oil seal provided in this embodiment includes: a sealing ring 100, an oil seal seat 200, a dust shell 300, and a spring 400. The sealing ring 100 is made of rubber material and includes a first body 110 and a first ring 120. The first ring 120 extends axially along the inner and outer edges of the first body 110, forming a receiving cavity with the first body 110 to accommodate the spring 400. To enhance waterproof performance, a surrounding waterproof groove 111 and an annular sealing protrusion 112 located on the outer side of the first body 110 are provided. These two structures work together to effectively block the intrusion of external moisture. The oil seal seat 200 consists of a second body 210 and a second ring 220, with the second ring 220 extending axially along the inner edge of the second body 210. The dust housing 300 includes a third body 310 and a third ring body 320. The third ring body 320 extends axially along the inner edge of the third body 310. A design feature of the dust housing is that the third body 310 protrudes in the opposite direction to the third ring body 320, forming another receiving cavity for accommodating the spring 400. The spring 400 is installed within the receiving cavity formed between the first body 110 and the first ring body 120 of the sealing ring 100. It serves to maintain sealing pressure, ensuring a good sealing condition of the oil seal throughout its service life.

[0028] When it is needed to be assembled and used, first, the spring 400 is installed in the accommodating cavity of the sealing ring, the dust shell 300 is assembled with the sealing ring 100, the third ring body 320 of the dust shell 300 is inserted into the inside of the first body 110 from the end face of the sealing ring 100, the third ring body 320 is attached to the first ring body 120 inside the first body 110, then the oil seal seat 200 is assembled with the sealing ring 100, the second ring body 220 of the oil seal seat 200 is inserted from the end face of the sealing ring 100 away from the accommodating cavity, so that the second ring body 220 is attached to the third ring body 320 of the dust shell 300, finally, the dust shell 300 is hammered by external force, so that the dust shell 300 is fixed with the sealing ring 100, and the overall assembly is completed.

[0029] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof.

[0030] In the description of the present application, it should be understood that the terms "upper", "lower", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0031] In addition, the terms "first", "second", etc. are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

Claims

1. A waterproof skeleton oil seal, characterized in that, include: A sealing ring (100) includes a first body (110) and a first ring (120). The first ring (120) extends axially along the inner and outer edges of the first body (110), and a receiving cavity is formed between the first body (110) and the first ring (120). Oil seal seat (200), the oil seal seat (200) includes a second body (210) and a second ring body (220), the second ring body (220) extending axially along the inner edge of the second body (210); Dust shell (300), the dust shell (300) includes a third body (310) and a third ring body (320), the third ring body (320) extends axially along the inner edge of the third body (310), and the third body (310) protrudes in the opposite direction to the extension of the third ring body (320) to form a receiving cavity; A spring (400) is installed in the receiving cavity of a sealing ring (100); In use, the third ring (320) of the dust shell (300) is inserted into the inner side of the first body (110) by the end face of the sealing ring (100) that provides the receiving cavity, and the second ring (220) of the oil seal seat (200) is inserted by the end face of the sealing ring (100) away from the receiving cavity.

2. The waterproof skeleton oil seal according to claim 1, characterized in that, A waterproof groove (111) is uniformly provided on the end face of the first body (110) away from the receiving cavity.

3. A waterproof skeleton oil seal according to claim 2, characterized in that, The waterproof groove (111) is provided with an annular sealing protrusion (112) on the outside.

4. A waterproof skeleton oil seal according to claim 1, characterized in that, The sealing ring (100) is made of rubber.

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