Engine cover plate with wear-resistant leak-proof function
By designing protective plates, slots, bosses, and ceramic coatings on the diesel engine cover, the problems of cover wear and poor sealing were solved, achieving wear resistance and leak prevention, and reducing maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG DONGXIN POWER CO LTD
- Filing Date
- 2025-06-24
- Publication Date
- 2026-07-24
Smart Images

Figure CN224545891U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of engine technology, specifically relating to an engine cover plate with wear-resistant and leak-proof functions. Background Technology
[0002] A diesel engine is a compression-ignition internal combustion engine, renowned for its high torque, high thermal efficiency, strong durability, and good fuel economy. It is widely used in heavy transportation (trucks, buses, ships, trains), some passenger cars, construction machinery (excavators, bulldozers), agricultural equipment (tractors, harvesters), generator sets, and other fields (non-road). A diesel engine is an engine that burns diesel fuel to obtain energy. The advantage of a diesel engine is its high power output, producing more power. Due to the characteristics of diesel engines, the strength requirements for the engine casing are relatively high, especially for the engine cover. During use, the high power output generates significant energy, making it more susceptible to damage. Therefore, quality and strength must be carefully controlled during production and design. Currently, most diesel engine cover materials have relatively low strength and precision, often resulting in defective products, wear, and poor sealing. Therefore, it is necessary to design an engine cover with wear-resistant and leak-proof functions. Utility Model Content
[0003] To address the problems mentioned in the background section, this utility model provides an engine cover with wear-resistant and leak-proof functions, thus solving the problem of wear resistance and leak prevention in engine covers.
[0004] To achieve the above objectives, the present invention provides the following technical solution: an engine cover with wear-resistant and leak-proof function, comprising a protective plate, a first boss installed on one side surface of the protective plate, a second boss installed on one side surface of the first boss, fixing threaded holes respectively opened at the four corners of the first boss, a first threaded hole respectively opened on the inner surface of the second boss, and a second threaded hole respectively opened on the inner surface of the first boss.
[0005] Preferably, the protective plate has slots formed on its four sides.
[0006] Preferably, there are two first threaded holes, and the protective plate, the first boss and the second boss are penetrated inside.
[0007] Preferably, the second threaded hole is installed on both sides of the second boss, and its interior penetrates the protective plate and the first boss.
[0008] Preferably, one side of the first threaded hole is provided with two inner steps, and one side of the fixed threaded hole and the second threaded hole is provided with an inner step.
[0009] Preferably, a sealing groove is provided between the protective plate and the first boss.
[0010] Preferably, a ceramic coating is provided on one side of the surface of the second boss.
[0011] Compared with the prior art, the beneficial effects of this utility model are: by cooperating with the protective plate, the slot, the first boss, the second boss, the sealing groove, and the threaded hole, the protective plate is thickened, and the slot and sealing groove are added, which increases the sealing performance of the cover plate, greatly reduces the wear problem of the diesel engine, reduces the maintenance cost of the diesel engine, and increases the quality and strength of the cover plate. Attached Figure Description
[0012] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0013] Figure 1 This is a first three-dimensional structural diagram of the present invention;
[0014] Figure 2 This is a second three-dimensional structural diagram of the present invention;
[0015] Figure 3 This is a cross-sectional view of the present invention.
[0016] In the diagram: 1. Protective plate; 2. Slot; 3. First boss; 4. Sealing groove; 5. Second boss; 6. First threaded hole; 7. Fixed threaded hole; 8. Second threaded hole. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0018] Please see Figure 1-3 The present invention provides the following technical solution: an engine cover with wear-resistant and leak-proof function, including a protective plate 1 (i.e., cover body), a first boss 3 is installed on one side surface of the protective plate 1, a second boss 5 is installed on one side surface of the first boss 3, a fixing threaded hole 7 is opened at the four corners of the first boss 3, a first threaded hole 6 is opened on the inner surface of the second boss 5, and a second threaded hole 8 is opened on the inner surface of the first boss 3.
[0019] The protective plate 1 has slots 2 on its four sides. There are two first threaded holes 6, which penetrate the protective plate 1, the first boss 3, and the second boss 5. The second threaded holes 8 are installed on both sides of the second boss 5, and penetrate the protective plate 1 and the first boss 3.
[0020] Two inner steps are provided on one side of the first threaded hole 6, and one inner step is provided on one side of the fixing threaded hole 7 and the second threaded hole 8. A sealing groove 4 is provided between the protective plate 1 and the first boss 3. A ceramic coating is provided on one side of the surface of the second boss 5.
[0021] In this embodiment, by setting the slot 2 to connect with the corresponding buckle, not only is the stability of the protective plate increased, but the sealing performance of the cover plate is also greatly improved.
[0022] In this embodiment: by setting the fixing threaded holes 7 at the four corners of the first boss 3, not only can the position of the cover plate be located, but the fixing force of the cover plate can also be enhanced.
[0023] In this embodiment, the wear resistance of the cover plate is greatly improved by providing a ceramic coating on the surface of the second protrusion 5.
[0024] The working principle and usage process of this utility model are as follows: After the utility model is installed, firstly, the EPDM rubber sealing strip is placed into the sealing groove 4, which greatly increases the sealing performance of the cover plate. Secondly, the cover plate is placed on the buckle corresponding to the slot 2, and the circumference of the cover plate is pressed down so that the slot 2 is connected to the diesel engine buckle. Then, bolts are inserted into the fixing threaded holes 7 for threaded connection, which can effectively fix the position of the cover plate and strengthen the connection with the diesel engine. Bolts of the corresponding diameter are inserted into the first threaded hole 6 for threaded connection, and then bolts of the corresponding size are inserted into the second threaded hole 8 for threaded connection, which greatly improves the stability of the device.
[0025] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. An engine cover with wear-resistant and leak-proof function, comprising a protective plate (1), characterized in that: A first boss (3) is installed on one side surface of the protective plate (1), and a second boss (5) is installed on one side surface of the first boss (3). Fixed threaded holes (7) are respectively opened at the four corners of the first boss (3). A first threaded hole (6) is respectively opened on the inner surface of the second boss (5). A second threaded hole (8) is respectively opened on the inner surface of the first boss (3). A sealing groove (4) is opened between the protective plate (1) and the first boss (3). A ceramic coating is provided on one side of the surface of the second boss (5).
2. The engine cover plate with wear-resistant and leak-proof function according to claim 1, characterized in that: The protective plate (1) has slots (2) on its four sides.
3. An engine cover with wear-resistant and leak-proof function according to claim 1 or 2, characterized in that: The number of the first threaded holes (6) is two, and the protective plate (1), the first boss (3) and the second boss (5) are penetrated inside.
4. An engine cover with wear-resistant and leak-proof function according to claim 1 or 2, characterized in that: The second threaded hole (8) is installed on both sides of the second boss (5) and penetrates the protective plate (1) and the first boss (3) inside.
5. An engine cover with wear-resistant and leak-proof function according to claim 1, characterized in that: Two inner steps are provided on one side of the first threaded hole (6), and one inner step is provided on one side of the fixed threaded hole (7) and the second threaded hole (8).