Reinforced pressure-resistant waterproof seal

Abstract

The utility model discloses a reinforced pressure-resistant waterproof seal in the technical field of sealing oil seals, which comprises a supporting framework and a sealing body, the sealing body wraps the inner side wall of the supporting framework, and a first sealing lip is fixedly connected to the periphery of the outer side of the right side wall of the sealing body. A second sealing lip is fixedly connected to the periphery of the inner side of the right side wall of the sealing body, a mounting groove is formed in the periphery of the outer side of the second sealing lip, a spring ring is clamped in an inner cavity of the mounting groove, and an inner side sealing lip is fixedly connected to the periphery of the inner side wall of the sealing body. Through the first sealing lip and the second sealing lip arranged on the sealing body, the oil seal is integrally structurally reinforced while double sealing is performed, and meanwhile, the inner side sealing lip is in contact sealing with the outer side of a motor shaft to form three-layer sealing, so that the oil seal is more pressure-resistant while the strength of the oil seal is improved, and the integral sealing performance of the oil seal can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing oil seals, in particular to a reinforced pressure-resistant and waterproof seal. Background Art

[0002] When the motor is running, external impurities such as mud, dust, and water will destroy the sealing structure of the motor, causing water and mud to enter the motor, resulting in insulation, burning and other faults. Due to water and solvents, motion control components are often at risk of corrosion and failure. Waterproof motors are key components for solving water-electric motor failure problems. Many waterproof methods will limit the flow of air to the motor, which will have a negative impact on the maximum power output of the motor, so it is necessary to install a waterproof sealing oil seal between the motor housing and the motor shaft.

[0003] The existing motor oil seal functional briefing can only play the role of sealing and waterproofing the motor. However, when the motor is running at high speed, the insufficient strength of the oil seal will cause the oil seal to crack. In addition, the general oil seal has low pressure resistance and is prone to slight deformation after pressure occurs. Deformation will reduce the sealing effect of the oil seal. For this reason, we propose a method to enhance the pressure-resistant and waterproof seal. Utility Model Content

[0004] The purpose of the utility model is to provide a reinforced pressure-resistant and waterproof seal to solve the problem that the insufficient strength of the sealing oil seal may lead to cracking of the oil seal, and that the general oil seal has low pressure resistance and is prone to slight deformation after pressure occurs, and the deformation may reduce the sealing effect of the oil seal.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a reinforced pressure-resistant and waterproof seal, comprising a supporting frame and a sealing body, the sealing body being wrapped around the inner wall of the supporting frame, a first sealing lip being fixedly connected to the outer side of the right side wall of the sealing body, a second sealing lip being fixedly connected to the inner side of the right side wall of the sealing body, an installation groove being opened around the outer side of the second sealing lip, a spring ring being clamped in the inner cavity of the installation groove, and an inner sealing lip being fixedly connected to the inner side wall of the sealing body.

[0006] As a further description of the above technical solution:

[0007] The support frame and the sealing body are integrally formed by vulcanization, and the sealing body, the first sealing lip, the second sealing lip and the inner sealing lip are an integrally formed structure.

[0008] As a further description of the above technical solution:

[0009] The support frame is in an L-shape, the sealing body is in a C-shape, and the overall shape of the support frame and the sealing body is in an E-shape.

[0010] As a further description of the above technical solution:

[0011] The sealing body, the first sealing lip, the second sealing lip and the inner sealing lip are all made of nitrile rubber.

[0012] As a further description of the above technical solution:

[0013] The inner wall of the inner sealing lip has a chamfer of thirty degrees on the left side, and the inner wall of the inner sealing lip has a chamfer of forty-five degrees on the right side.

[0014] Compared with the prior art, the beneficial effects of the utility model are: the reinforced pressure-resistant and waterproof seal is an E-shaped structural oil seal formed by integrally vulcanizing an L-shaped supporting frame and a C-shaped sealing body, the oil seal is installed through the supporting frame, and the first sealing lip and the second sealing lip arranged on the sealing body perform double sealing while strengthening the overall structure of the oil seal, and at the same time, the inner sealing lip contacts and seals with the outer side of the motor shaft to form a three-layer seal, thereby being able to improve the strength of the oil seal while being more pressure-resistant, and being able to improve the overall sealing of the oil seal. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a pressure-resistant and waterproof seal enhanced according to the utility model;

[0016] Figure 2 This is a schematic diagram of the main cross-sectional structure of a pressure-resistant and waterproof seal enhanced according to the utility model;

[0017] Figure 3 The utility model proposes a method for strengthening pressure-resistant and waterproof sealing. Figure 2 Enlarged structural diagram at A in the middle.

[0018] In the figure: 100, supporting frame; 200, sealing body; 210, first sealing lip; 220, second sealing lip; 221, mounting groove; 222, spring ring; 230, inner sealing lip. DETAILED DESCRIPTION

[0019] 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.

[0020] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] The utility model provides a kind of enhanced pressure-resistant and waterproof seal, which can improve the strength of the oil seal and also be more pressure-resistant, thus improving the overall sealing performance of the oil seal. Figure 1-3 , comprising a supporting frame 100 and a sealing body 200;

[0023] Please refer again Figure 1-3 , the shape of the support frame 100 is L-shaped, and the support frame 100 and the sealing body 200 are vulcanized and integrally formed;

[0024] Please refer again Figure 1-3The sealing body 200 is wrapped around the inner wall of the supporting frame 100, and a first sealing lip 210 is fixedly connected to the outer side of the right side wall of the sealing body 200, and a second sealing lip 220 is fixedly connected to the inner side of the right side wall of the sealing body 200. A mounting groove 221 is opened around the outer side of the second sealing lip 220, and a spring ring 222 is clamped in the inner cavity of the mounting groove 221. An inner sealing lip 230 is fixedly connected to the inner side wall of the sealing body 200. The sealing body 200 and the first sealing lip 210, the second sealing lip 220 and the inner sealing lip 230 are an integrally formed structure. The shape of the sealing body 200 is C-shaped, and the overall shape of the supporting frame 100 and the sealing body 200 is E-shaped. The sealing The body 200, the first sealing lip 210, the second sealing lip 220 and the inner sealing lip 230 are all made of nitrile rubber. The inner wall of the inner sealing lip 230 has a thirty-degree chamfer on the left side, and the inner wall of the inner sealing lip 230 has a forty-five-degree chamfer on the right side. The E-shaped structural oil seal is formed by integrally vulcanizing the L-shaped support frame 100 and the C-shaped sealing body 200. The oil seal is installed through the support frame 100, and the first sealing lip 210 and the second sealing lip 220 arranged on the sealing body 200 perform double sealing while strengthening the overall structure of the oil seal. At the same time, the inner sealing lip 230 contacts and seals with the outer side of the motor shaft to form a three-layer seal.

[0025] In summary, the strength of the oil seal can be improved while making it more pressure-resistant, and the overall sealing performance of the oil seal can be improved.

[0026] During specific use, when installing the oil seal, personnel in this technical field install the oil seal by putting the oil seal sleeve on the motor shaft and moving it so that the inner sealing lip 230 contacts and seals with the outer side of the motor shaft, installing the spring ring 222 into the installation groove 221, and moving it to the end cover. Then, a tool is used to evenly knock on the oil seal in parallel, so that the support frame 100 and the sealing body 200 enter the end cover. After contacting with the internal groove of the end cover, the support frame 100 installs the oil seal, and the first sealing lip 210 and the second sealing lip 220 provided on the sealing body 200 contact with the internal groove of the end cover to form a double seal, while strengthening the overall structure of the oil seal, and at the same time, the inner sealing lip 230 contacts and seals with the outer side of the motor shaft to form a three-layer seal.

[0027] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0028] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A reinforced pressure-resistant and waterproof seal, characterized in that: The invention comprises a support frame (100) and a sealing body (200), wherein the sealing body (200) is wrapped around the inner side wall of the support frame (100), a first sealing lip (210) is fixedly connected to the outer side of the right side wall of the sealing body (200), a second sealing lip (220) is fixedly connected to the inner side of the right side wall of the sealing body (200), a mounting groove (221) is formed around the outer side of the second sealing lip (220), a spring ring (222) is clamped in the inner cavity of the mounting groove (221), and an inner sealing lip (230) is fixedly connected to the inner side wall of the sealing body (200).

2. A reinforced pressure-resistant and waterproof seal according to claim 1, characterized in that: The support frame (100) and the sealing body (200) are integrally formed by vulcanization, and the sealing body (200) and the first sealing lip (210), the second sealing lip (220) and the inner sealing lip (230) are an integrally formed structure.

3. A reinforced pressure-resistant and waterproof seal according to claim 1, characterized in that: The support frame (100) is in an L-shape, the sealing body (200) is in a C-shape, and the overall shape of the support frame (100) and the sealing body (200) is in an E-shape.

4. A reinforced pressure-resistant and waterproof seal according to claim 1, characterized in that: The sealing body (200), the first sealing lip (210), the second sealing lip (220) and the inner sealing lip (230) are all made of nitrile rubber.

5. A reinforced pressure-resistant and waterproof seal according to claim 1, characterized in that: The inner wall of the inner sealing lip (230) has a chamfer of thirty degrees around its left side, and the inner wall of the inner sealing lip (230) has a chamfer of forty-five degrees around its right side.

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