Sealing structure with high sealing performance

Abstract

The sealing structure with the high sealing performance comprises a body of a hollow structure, the section of the body is of a hollow kidney-shaped annular structure, one end of the body is of a semicircular structure, the other end of the body is of a rectangular structure with a rectangular fillet, and a plurality of protruding teeth used for improving the sealing performance are evenly distributed on the outer wall of the rectangular side of the body. By optimizing the shape of the cross section of the body and adopting the kidney-shaped annular body with one side of the rectangular structure and the other side of the semicircular structure, the defect that the sealing effect is affected due to small compression and resilience force of a traditional O-shaped ring is overcome, and the O-shaped ring is suitable for sealing scenes of positions with relatively large sizes; the sealing effect of sealing parts among diesel engine parts is improved, the conditions of oil leakage, water leakage and gas leakage are reduced, the safety and reliability of operation of a diesel engine are improved, the resilience force and the compression amount are increased through the design of the body of the hollow structure and the convex teeth, and enough thickness is reserved to increase the contact face and the supporting force while the compression space is met.

Description

Technical Field

[0001] The utility model belongs to the technical field of diesel engine sealing, and particularly relates to a sealing structure with high sealing performance. Background Technique

[0002] Diesel engines are widely used in various fields due to factors such as large torque, good economy, relatively compact structure, relatively small mass, and wide power range coverage. The operation of a diesel engine generally includes processes such as fuel supply, lubricating oil and cooling water circulation, gas inhalation and emission, that is, the five major systems of fuel, lubricating oil, cooling, intake and exhaust, and starting. Each system consists of hundreds or even more parts. Therefore, there are usually sealing requirements for the connection parts between the parts of each system. A reliable sealing method is necessarily one of the important factors affecting the safe and reliable operation of a diesel engine.

[0003] The sealing between diesel engine parts generally uses a conventional O-ring for sealing. Since the ordinary sealing ring is circular in shape and solid inside, the contact surface between the sealing ring and the parts is small, the compressibility is small, and the resilience is relatively small. Over time, due to factors such as slightly aging of the sealing ring, local slight damage during disassembly and assembly, and vibration during the operation of the diesel engine, the sealing between parts will become loose, resulting in oil leakage, water leakage, air leakage, etc. in the diesel engine, affecting the normal use of the diesel engine. Therefore, it is necessary to improve the conventional O-ring seal. Content of the Utility Model

[0004] The technical problem solved by the utility model: Provide a sealing structure with high sealing performance. By optimizing the cross-sectional shape of the body, a waist-shaped ring-shaped body with a rectangular structure on one side and a semi-circular structure on the other side is adopted, which solves the drawback that the traditional O-ring has small compression and resilience, affecting the sealing effect. It is suitable for sealing scenarios at relatively large positions, improves the sealing effect of the sealed parts between diesel engine parts, reduces the situations of oil leakage, water leakage, and air leakage, and improves the safety and reliability of the operation of the diesel engine.

[0005] The technical solution adopted by the utility model: A sealing structure with high sealing performance, including a body with a hollow structure. The cross-sectional shape of the body is a hollow waist-shaped ring structure. One end of the body is a semi-circular structure, and the other end of the body adopts a rectangular structure with a rectangular fillet. A number of convex teeth for improving the sealing performance are evenly distributed on the outer wall of the rectangular side of the body.

[0006] Among them, the convex teeth are saw teeth, and the angle of the saw teeth is 60°.

[0007] Further, a number of the convex teeth are arranged to the fillet pole positions of the rectangular side of the body.

[0008] Further, the body is made of fluororubber.

[0009] Further, the semi-circular side and the rectangular side of the body are integrally connected through a vertical section.

[0010] Further, when in use, the convex tooth side of the body is in extrusion contact with the sealing surface while the semi-circular side is adapted to be within the sealing groove.

[0011] Advantages of the present utility model compared with the prior art:

[0012] 1. By optimizing the cross-sectional shape of the body, the present technical solution adopts a kidney-shaped ring-shaped body with a rectangular structure on one side and a semi-circular structure on the other side, solving the drawbacks that the compression and resilience of traditional O-rings are small and affect the sealing effect. It is applicable to sealing scenarios at relatively large-sized positions, improving the sealing effect of the sealing parts between diesel engine components, reducing oil leakage, water leakage, and air leakage, and enhancing the safety and reliability of diesel engine operation.

[0013] 2. By arranging a number of saw teeth on the rectangular side of the body in contact with the sealing surface, the present technical solution improves the compression deformation amount and resilience. The saw-tooth structure also has the functions of multi-channel sealing and increasing the contact surface, thereby improving the sealing effect. The kidney-shaped ring structure with a hollow structure and the rectangular guide fillet design at the saw-tooth end with a hollow design reserve sufficient thickness under the premise of meeting the compression space, increasing the contact surface and support force, ensuring that there is sufficient accommodation space for the protruding saw teeth when the sealing ring is installed and extruded, and providing deformation conditions for increasing the contact area with the sealing surface.

[0014] 3. The present technical solution has a simple structure and novel design. It can be cut according to the use environment and wound into different shapes, and then adhesively connected at the joint position. It has a wide application range, good sealing effect, is applicable to different positions of different models, and has high use value. Description of the Drawings

[0015] Figure 1 It is a schematic structural diagram of the present utility model. Detailed Embodiments

[0016] The following will combine with the Figure 1 in the embodiments of the present utility model, and clearly and completely describe the technical solutions in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0017] It should be noted that in this article, unless otherwise stated, it should be understood that: the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention 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 to the present invention. In addition, terms such as "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0018] In this article, the term "comprise", "include" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising one..." does not exclude the presence of additional identical elements in the process, method, article or device comprising said element.

[0019] A sealing structure with high sealing performance, including a hollow body 1. The cross-sectional shape of the body 1 is a hollow waist-shaped ring structure. One end of the body 1 is a semi-circular structure, and the other end of the body 1 is a rectangular structure with rounded corners. A number of convex teeth 2 for improving the sealing performance are evenly distributed on the outer wall of the rectangular side of the body 1, achieving the effects of multi-channel sealing and increasing the contact surface, thereby improving the sealing effect. In the above structure, by optimizing the cross-sectional shape of the body, a waist-shaped ring body 1 with a rectangular structure on one side and a semi-circular structure on the other side is adopted, which solves the drawback that the compression and resilience of the traditional O-ring are small and affect the sealing effect. It is applicable to the sealing scenarios at relatively large-sized positions, improves the sealing effect of the sealing parts between diesel engine components, reduces the situations of oil leakage, water leakage and air leakage, and improves the safety and reliability of the operation of the diesel engine.

[0020] Among them, the convex teeth 2 are saw teeth, and the angle of the saw teeth is 60°; specifically, several convex teeth 2 are arranged at the rounded corner poles of the rectangular side of the body 1; specifically, when the body 1 is in use, the side of the convex teeth 2 of the body 1 is in extrusion contact with the sealing surface while the semi-circular side is adapted to the sealing groove; in the above structure, by arranging several saw teeth on the rectangular side of the body 1 in contact with the sealing surface, the compression deformation amount and the resilience are improved. The saw-tooth structure also has the functions of multi-channel sealing and increasing the contact surface, thereby improving the sealing effect. The waist-shaped ring structure with a hollow structure and the saw-tooth end with a hollow design and a rectangular guide fillet design reserve enough thickness on the premise of meeting the compression space, increasing the contact surface and the supporting force, ensuring that there is enough accommodation space for the protruding saw teeth when the sealing ring is installed and extruded, and providing deformation conditions for increasing the contact area with the sealing surface;

[0021] The inner and outer sides of the semi-circular side and the rectangular side of the body 1 are integrally connected by vertical sections; specifically, the body 1 is made of fluororubber, specifically 5470\HG6-407-79 fluororubber.

[0022] The lower part of this structure still adopts a circular structure to ensure accurate cooperation with the installed parts; a straight section with a certain length is adopted in the middle to reserve enough space for the upper part design; the outer contour of the upper part adopts a rectangular guide fillet design and a multi-saw-tooth design concept. The angle of the saw teeth is 60°, and the saw teeth are arranged all the way to the rounded corner pole position; compared with the semi-circular design, the rectangular guide fillet design can provide relatively higher supporting force and more contact surfaces; similarly, this multi-saw-tooth design can not only further increase the contact surface, but more importantly, it can form a multi-channel sealing form. At the same time, this saw-tooth design can ensure that there is enough accommodation space for the protruding saw teeth when the sealing ring is installed and extruded, making the compression amount of the saw teeth larger and the resilience of the saw teeth also larger; when the sealing ring is installed and extruded, its hollow design can accommodate the extrusion amount, further increasing the contact surface and the deformation amount and resilience for the overall sealing ring; based on the above design advantages, the sealing between components is ensured, and situations such as oil leakage, water leakage, and air leakage are reduced.

[0023] The key to this structure is the upper rectangular guide fillet and the multi-saw-tooth structure with an angle of 60° (arranged all the way to the rounded corner pole position) and the hollow structure design inside (the upper rectangular guide fillet and ensuring a thicker wall thickness design than the lower part), forming a multi-channel sealing form, more contact surfaces, greater supporting force and resilience, improving the sealing performance of the sealed parts between components, reducing phenomena such as oil leakage, water leakage, and air leakage at the sealing parts of the diesel engine, and improving the safety and reliability of the diesel engine.

[0024] The technical solution has a simple structure and novel design. It can be cut according to the use environment and wound into different shapes, and then adhesively fixed at the joint position with Loctite 5368. It has a wide range of applications, good sealing effect, and high use value.

[0025] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

[0026] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. Sealing structure with high sealing performance, characterized by: The invention comprises a body (1) of a hollow structure, wherein the cross-section of the body (1) is a hollow waist-shaped ring structure, one end of the body (1) is a semicircular structure, and the other end of the body (1) is a rectangular structure with rounded corners, and a plurality of convex teeth (2) for improving sealing performance are evenly distributed on the outer wall of the rectangular side of the body (1).

2. The sealing structure with high sealing performance according to claim 1, characterized in that: The protruding teeth (2) are saw teeth, and the angle of the saw teeth is 60°.

3. The sealing structure with high sealing performance according to claim 2, characterized in that: A plurality of the protruding teeth (2) are arranged at the rounded corner extreme points of the rectangular side of the body (1).

4. The sealing structure with high sealing performance according to claim 1, characterized in that: The body (1) is made of fluororubber.

5. The sealing structure with high sealing performance according to claim 1, 2, 3 or 4, characterized in that: The semicircular side and the rectangular side of the body (1) are connected as one through a vertical section transition.

6. The sealing structure with high sealing performance according to claim 5, characterized in that: When the body (1) is in use, the convex tooth (2) side is in compression contact with the sealing surface and the semicircular side is fitted into the sealing groove.

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