A diesel engine rear cover plate

The diesel engine rear cover, with its multi-layered structure and component design, improves impact resistance and sound insulation, solving the protection and noise reduction problems of existing diesel engine rear covers and achieving a more stable and quieter operating environment.

CN224496586UActive Publication Date: 2026-07-14常州森峰机械有限公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
常州森峰机械有限公司
Filing Date
2025-08-29
Publication Date
2026-07-14

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  • Figure CN224496586U_ABST
    Figure CN224496586U_ABST
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Abstract

The utility model discloses a diesel engine back cover plate, including main board body, vice board subassembly, including fixed base plate of main board body outer surface, install the outer plate of base plate outside, fixed in the connecting stake of outer plate inside, set up the connecting groove of base plate surface and supply the connecting stake insertion, fill the rubber block of setting between connecting stake and connecting groove, vice board subassembly still include the sponge board of installation between base plate and outer plate, through setting up vice board subassembly at the outer surface of main board body, and vice board subassembly is by the multilayer structure of base plate and outer plate etc, can promote the anti -collision performance of main board body on one side, not easy to take place deformation damage after receiving external force, on one side promoted the ability of noise reduction sound insulation, weaken the noise of diesel engine operation and produce, through above -mentioned structure, promoted the multifunctionality of back cover plate integral anti -collision sound insulation.
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Description

Technical Field

[0001] This utility model belongs to the field of diesel engine technology, specifically relating to a diesel engine rear cover plate. Background Technology

[0002] A diesel engine is an internal combustion engine that generates power through the combustion of diesel fuel and is widely used in vehicles, ships, and other applications. The diesel engine rear cover is a component installed at the rear of the engine. Its main functions are to seal the rear of the engine, preventing dust and other foreign objects from entering, protecting internal parts, assisting in sealing to prevent oil and gas leaks, and providing mounting support for sensors and other components. It is a crucial accessory for ensuring the stable operation of the diesel engine.

[0003] Existing diesel engine rear cover plates are mostly simple and basic in structure, often made of ordinary plates. Their impact resistance is poor, and they are easily damaged by external forces. Their sound insulation effect is also average, making it difficult to effectively block operating noise. Their function is also relatively limited, mainly serving only as a basic enclosure, and their performance in terms of protection and noise reduction is also average. Therefore, it is necessary to design a new diesel engine rear cover plate to solve this problem. Utility Model Content

[0004] The purpose of this utility model is to provide a diesel engine rear cover plate to solve the problem mentioned in the background art that the existing diesel engine rear cover plates have relatively poor impact resistance and sound insulation capabilities.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a diesel engine rear cover plate, comprising...

[0006] Motherboard body;

[0007] The sub-board assembly includes a base plate fixed to the outer surface of the main plate, an outer plate mounted on the outer side of the base plate, a connecting pin fixed to the inner side of the outer plate, a connecting groove formed on the surface of the base plate for the connecting pin to be inserted, and a rubber block filled between the connecting pin and the connecting groove.

[0008] The sub-plate assembly also includes a sponge plate installed between the base plate and the outer plate.

[0009] Preferably, the connecting piles are T-shaped and rectangularly distributed on the inner surface of the outer plate.

[0010] Preferably, the sub-board assembly further includes honeycomb holes, which are formed on the side surface of the substrate close to the main board.

[0011] Preferably, the sub-plate assembly further includes a sealing strip, which is sealed between the edge surfaces of the substrate and the outer plate.

[0012] Preferably, the surface of the main board body has mounting holes around the sub-board assembly, and the outer surface of the sub-board assembly is fixedly provided with reinforcing ribs.

[0013] Preferably, a sealing buffer ring is provided on the inner surface of the motherboard body. The sealing buffer ring includes a rectangular rubber ring body, an embedded strip fixed on the inner surface of the rubber ring body, and an embedded groove formed on the surface of the motherboard body and capable of engaging with the embedded strip.

[0014] Preferably, the sealing buffer ring further includes protrusions symmetrically arranged on both sides of the inlay strip and grooves formed in the inner wall of the inlay groove that can engage with the protrusions.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] By setting a sub-board assembly on the outer surface of the main board, and the sub-board assembly is a multi-layer structure composed of a base plate and an outer plate, the impact resistance of the main board can be improved, making it less prone to deformation and damage after being subjected to external forces. On the other hand, the noise reduction and sound insulation capabilities are improved, reducing the noise generated during the operation of the diesel engine. Through the above structure, the overall impact resistance and sound insulation of the rear cover are enhanced. Attached Figure Description

[0017] Figure 1 This is a three-dimensional view of the front of the present utility model;

[0018] Figure 2 This is a partial top sectional view of the sub-plate assembly of this utility model;

[0019] Figure 3 This is a three-dimensional schematic diagram of the back of the present invention;

[0020] Figure 4 This is a partial top sectional view of the sealing buffer ring of this utility model;

[0021] In the diagram: 100, main board body; 200, sub-board assembly; 201, base plate; 202, outer plate; 203, connecting pin; 204, connecting groove; 205, rubber block; 206, honeycomb hole; 207, sealing strip; 208, sponge board; 300, reinforcing rib; 400, mounting hole; 500, sealing buffer ring; 501, rubber ring body; 502, inner strip; 503, inner groove; 504, protrusion; 505, groove. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example

[0024] Please see Figures 1 to 4 This embodiment provides a technical solution: a diesel engine rear cover plate, comprising...

[0025] The main body 100 serves as the main structure of the rear cover.

[0026] The sub-board assembly 200 includes a base plate 201 fixed to the outer surface of the main board 100, an outer plate 202 installed on the outer side of the base plate 201, a connecting post 203 fixed to the inner side of the outer plate 202, a connecting groove 204 formed on the surface of the base plate 201 for the connecting post 203 to be inserted, and a rubber block 205 filled between the connecting post 203 and the connecting groove 204. Since the rubber block 205 has a certain elasticity, it can shrink and make room when the outer plate 202 is impacted, thereby weakening the impact force. Through the components such as the base plate 201, the outer plate 202 and the rubber block 205, the impact resistance of the rear cover is improved.

[0027] The sub-panel assembly 200 also includes a sponge board 208 installed between the base plate 201 and the outer plate 202. The multi-layer structure formed by the base plate 201, the outer plate 202 and the sponge board 208 can play a good role in sound insulation and noise reduction.

[0028] In this embodiment, preferably, the connecting pile 203 has a T-shaped structure and is distributed in a rectangular shape on the inner surface of the outer plate 202 to ensure a stable connection between the outer plate 202 and the base plate 201.

[0029] In this embodiment, preferably, the sub-board assembly 200 further includes honeycomb holes 206, which are formed on the side surface of the substrate 201 near the main board body 100, further improving the sound insulation performance of the sub-board assembly 200.

[0030] In this embodiment, preferably, the sub-plate assembly 200 further includes a sealing strip 207, which is sealed between the edge surfaces of the substrate 201 and the outer plate 202. The sealing strip 207 seals the outer edges of the substrate 201 and the outer plate 202, thus providing dust and water protection.

[0031] In this embodiment, preferably, the surface of the main board 100 is provided with mounting holes 400 around the sub-board assembly 200, and the outer surface of the sub-board assembly 200 is fixedly provided with reinforcing ribs 300 to improve the strength of the sub-board assembly 200.

[0032] In this embodiment, preferably, a sealing buffer ring 500 is provided on the inner surface of the motherboard body 100. The sealing buffer ring 500 includes a rectangular rubber ring body 501, an embedded strip 502 fixed on the inner surface of the rubber ring body 501, and an embedded groove 503 formed on the surface of the motherboard body 100 and capable of fitting with the embedded strip 502. The sealing buffer ring 500 can improve the sealing performance of the motherboard body 100 after installation and also play a certain role in buffer protection.

[0033] In this embodiment, preferably, the sealing buffer ring 500 further includes protrusions 504 symmetrically arranged on both sides of the inner strip 502 and grooves 505 formed in the inner wall of the inner groove 503 and capable of engaging with the protrusions 504, to ensure the stable installation of the rubber ring body 501 and prevent it from falling off easily.

[0034] Although embodiments of the present invention have been shown and described (see the detailed description above), it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A diesel engine rear cover plate, characterized in that: include Mainboard body (100); The sub-board assembly (200) includes a base plate (201) fixed to the outer surface of the main body (100), an outer plate (202) installed on the outer side of the base plate (201), a connecting post (203) fixed to the inner side of the outer plate (202), a connecting groove (204) formed on the surface of the base plate (201) for the connecting post (203) to be inserted, and a rubber block (205) filled between the connecting post (203) and the connecting groove (204). The sub-plate assembly (200) also includes a sponge plate (208) installed between the base plate (201) and the outer plate (202).

2. The diesel engine rear cover plate according to claim 1, characterized in that: The connecting piles (203) have a T-shaped structure and are distributed in a rectangular shape on the inner surface of the outer plate (202).

3. A diesel engine rear cover plate according to claim 2, characterized in that: The sub-board assembly (200) also includes a honeycomb hole (206) which is formed on the side surface of the substrate (201) near the main body (100).

4. A diesel engine rear cover plate according to claim 3, characterized in that: The sub-plate assembly (200) also includes a sealing strip (207) which is sealed between the edge surfaces of the substrate (201) and the outer plate (202).

5. A diesel engine rear cover plate according to claim 4, characterized in that: The surface of the main board body (100) is provided with mounting holes (400) around the sub-board assembly (200), and the outer surface of the sub-board assembly (200) is fixedly provided with reinforcing ribs (300).

6. A diesel engine rear cover plate according to claim 5, characterized in that: The inner surface of the main body (100) is provided with a sealing buffer ring (500). The sealing buffer ring (500) includes a rectangular rubber ring body (501), an embedded strip (502) fixed on the inner surface of the rubber ring body (501), and an embedded groove (503) opened on the surface of the main body (100) and can be fitted with the embedded strip (502).

7. A diesel engine rear cover plate according to claim 6, characterized in that: The sealing buffer ring (500) also includes protrusions (504) symmetrically arranged on both sides of the inner strip (502) and grooves (505) formed in the inner wall of the inner groove (503) and capable of engaging with the protrusions (504).