An easily installed diesel engine rear cover plate

By designing and installing positioning and fixing components, the problem of inaccurate installation of the diesel engine rear cover plate was solved, achieving the effect of simplifying the installation process and improving installation convenience.

CN224339082UActive Publication Date: 2026-06-09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
2025-09-04
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

The existing diesel engine rear cover plate lacks auxiliary positioning and fixing design during installation, which makes the installation cumbersome and inaccurate, especially when there are many bolts.

Method used

The design incorporates mounting and fixing components, including a positioning plate, positioning pins, threaded pins, locking nuts, mounting plate, mounting block, insert pins, and fitting plate. Through the synergistic effect of these components, accurate positioning and stable installation of the diesel engine rear cover are achieved.

Benefits of technology

It achieves accurate positioning and secure installation of the diesel engine rear cover, reduces the number of locking nuts used, simplifies the installation process, and improves the convenience and accuracy of installation.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224339082U_ABST
    Figure CN224339082U_ABST
Patent Text Reader

Abstract

The utility model discloses an easily installed diesel engine back cover plate, including diesel engine back cover plate spare, install positioning subassembly, including positioning board, perpendicular positioning board's positioning pin post and threaded column, through reinforcing bolt of positioning board, with the threaded column through the screw thread and is combined and is connected locking nut, fixed component, including mounting plate, pull connection's mounting block and bolt post, welding connection's pasting board and limiting boss, through the installation positioning subassembly of design, positioning pin post and threaded column locate diesel engine back cover plate spare and mounting plate, make the diesel engine back cover plate spare of installation receive the orientation, easily accurate installation, avoid the diesel engine back cover plate spare and shift, through the fixed component of design, under the synergies of fixed component and installation positioning subassembly, diesel engine back cover plate spare is fixed between the position of positioning board and mounting plate, locking nut and locking nut lock, and mounting block and pasting board get fixed.
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Description

Technical Field

[0001] This utility model belongs to the technical field of diesel engine cover plate accessories, specifically relating to an easy-to-install diesel engine rear cover plate. Background Technology

[0002] The diesel engine rear cover is an accessory for the diesel engine cover. The diesel engine rear cover protects internal components, reduces noise, and prevents dust and debris from entering. The diesel engine rear cover is usually fixed to the diesel engine with fixing bolts. During the installation process, a wrench is required for assistance.

[0003] During the installation of the diesel engine rear cover, multiple bolts are generally required for fixation. Furthermore, to ensure accurate installation, the bolts must first be loosened, the position of the rear cover adjusted, and then the bolts tightened using a wrench to ensure proper engagement. This prevents the rear cover from sliding or shifting during installation, which could lead to mismatch between the bolts and bolt holes and affect the accuracy of the rear cover's installation position. The installation process involves a large number of bolts, typically more than four, making disassembly and assembly cumbersome. Additionally, the rear cover installation process lacks proper positioning; only the mounting holes and bolts are engaged, which is a drawback and requires improvement.

[0004] Existing diesel engine rear cover plates have the problem of lacking auxiliary installation positioning and fixing design. To address this, this application proposes an easy-to-install diesel engine rear cover plate. Utility Model Content

[0005] The purpose of this utility model is to provide an easy-to-install diesel engine rear cover plate to solve the problem mentioned in the background art of the lack of auxiliary installation positioning and fixing design on the diesel engine rear cover plate.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an easy-to-install diesel engine rear cover plate, comprising...

[0007] Diesel engine rear cover plate;

[0008] The mounting and positioning components include a positioning plate, a positioning pin and a threaded post on the vertical positioning plate, a reinforcing bolt penetrating the positioning plate, and a locking nut that is threadedly connected to the threaded post.

[0009] The fixing components include a mounting plate, a pull-out mounting block and a pin post, a welded bonding plate and a limiting protrusion.

[0010] Preferably, both the mounting plate and the positioning plate are frame structures with the same geometry.

[0011] Preferably, the positioning plate has a recessed bolt groove on its side, the reinforcing bolt is located in the bolt groove, and the surface of the reinforcing bolt is flush with the surface of the positioning plate.

[0012] Preferably, the diesel engine rear cover plate and the mounting plate have a first round hole for the positioning pin to pass through, and the diesel engine rear cover plate, the mounting block and the bonding plate have a second round hole c for the threaded pin to pass through.

[0013] Preferably, the mounting block has a recessed movable groove b with a rectangular orthographic projection on its surface facing the bonding plate, and the second circular hole c communicates with the movable groove b.

[0014] Preferably, the end of the pin located in the movable groove b has a "T" shaped structure, and the limiting protrusion is embedded inside the movable groove b.

[0015] Preferably, the positioning pin has a pin hole a for the corresponding insertion pin to pass through.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. In this utility model, the designed installation positioning component positions the diesel engine rear cover plate, making it easy to install accurately and preventing the diesel engine rear cover plate from shifting.

[0018] 2. In this utility model, through the designed fixing component, under the synergistic action of the fixing component and the installation positioning component, the diesel engine rear cover plate is fixed between the positioning plate and the mounting plate, and the locking nut is tightened, thus fixing the mounting block and the bonding plate. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a three-dimensional structural diagram of the positioning plate of this utility model;

[0021] Figure 3 This is a three-dimensional structural diagram of the mounting block of this utility model;

[0022] Figure 4 This is a three-dimensional structural diagram of the bonding plate of this utility model;

[0023] In the diagram: 1. Diesel engine rear cover plate; 2. Mounting plate; 3. Mounting block; 4. Pin post; 5. Fitting plate; 6. Locking nut; 51. Limiting protrusion; 71. Positioning pin post; 72. Positioning plate; 73. Reinforcing bolt; 74. Threaded post. Detailed Implementation

[0024] 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.

[0025] Please see Figures 1 to 4 This utility model provides a technical solution: an easy-to-install diesel engine rear cover plate, including a diesel engine rear cover plate component 1, which is fixed to the diesel engine housing by bolts; an installation positioning assembly, including a positioning plate 72, a positioning pin 71 and a threaded pin 74 on the vertical positioning plate 72, a reinforcing bolt 73 penetrating the positioning plate 72, and a locking nut 6 connected to the threaded pin 74 by threaded engagement. The positioning plate 72 is fixed to the diesel engine housing by the reinforcing bolt 73. During the subsequent disassembly and assembly of the diesel engine rear cover plate component 1, the positioning plate 72 remains fixed to the diesel engine housing. The positioning pin 71 and the threaded pin 74 on the positioning plate 72 serve a limiting function, and the locking nut 6 serves to lock the mounting plate 2, the mounting block 3, and the fitting plate 5; a fixing assembly, including the mounting plate 2, the pull-out connected mounting block 3 and the pin 4, and a welded connection. The mounting plate 2 and the limiting protrusion 51 are connected to the diesel engine rear cover plate 1. When fixing the diesel engine rear cover plate 1, the mounting plate 2 fits with the diesel engine rear cover plate 1. The positioning pin 71 and the threaded pin 74 limit the mounting plate 2. The mounting block 3 is sleeved on the outside of the threaded pin 74. The pin 4 is manually pulled to make the pin 4 pass through the corresponding positioning pin 71. The mounting plate 5 is installed so that the limiting protrusion 51 on the mounting plate 5 is embedded in the mounting block 3. The limiting protrusion 51 limits the pin 4 to prevent the pin 4 from sliding and makes the pin 4 and the positioning pin 71 stable. Finally, the locking nut 6 is tightened. Under the action of the symmetrically distributed locking nuts 6, the mounting plate 2, the mounting block 3 and the mounting plate 5 are installed stably, thereby achieving the purpose of installing and fixing the diesel engine rear cover plate 1. It has the function of locating the diesel engine rear cover plate 1 and requires fewer locking nuts 6, making it easy to install.

[0026] In this embodiment, both the mounting plate 2 and the positioning plate 72 are frame structures with the same geometric shape, which makes it easy to install the mounting plate 2 on the housing of the diesel engine and to make the positioning plate 72 fit with the surface of the diesel engine rear cover plate 1.

[0027] In this embodiment, the positioning plate 72 has a recessed bolt groove on its side, and the reinforcing bolt 73 is located in the bolt groove. The surface of the reinforcing bolt 73 is flush with the surface of the positioning plate 72 to avoid the reinforcing bolt 73 protruding and affecting the installation of the diesel engine rear cover plate 1.

[0028] In this embodiment, the diesel engine rear cover plate 1 and the mounting plate 2 are provided with a first circular hole through which the positioning pin 71 passes, so that the diesel engine rear cover plate 1 and the mounting plate 2, which are subject to the constraints, can be installed on the positioning plate 72. The diesel engine rear cover plate 1, the mounting block 3 and the bonding plate 5 are provided with a second circular hole c through which the threaded post 74 passes. The mounting block 3 and the bonding plate 5 are positioned by the threaded post 74, and the mounting block 3 and the bonding plate 5 are installed accurately. The surface of the mounting block 3 facing the bonding plate 5 is provided with a recessed movable groove b with a rectangular orthographic projection. The second circular hole c communicates with the movable groove b. The end of the pin 4 located in the movable groove b has a "T" shaped structure. The limiting protrusion 51 is embedded in the movable groove b, and the position of the pin 4 can be manually adjusted to prevent the pin 4 from being completely pulled out from the inside of the mounting block 3.

[0029] In this embodiment, the positioning pin 71 is provided with a pin hole a through which the corresponding insertion pin 4 passes. The insertion pin 4 passes through the positioning pin 71 and limits the positioning pin 71, so that the diesel engine rear cover plate 1 is fixed between the positioning plate 72 and the mounting plate 2.

[0030] Working principle and usage process of this utility model:

[0031] When the diesel engine rear cover plate 1 is installed on the diesel engine housing, the positioning plate 72 is fixed to the diesel engine housing by the reinforcing bolts 73. During the subsequent disassembly and assembly of the diesel engine rear cover plate 1, the positioning plate 72 is always fixed to the diesel engine housing.

[0032] The positioning pins 71 and threaded pins 74 on the positioning plate 72 serve to limit the diesel engine rear cover plate 1 and mounting plate 2 during installation. The positioning pins 71 and threaded pins 74 position the diesel engine rear cover plate 1 and mounting plate 2 to ensure accurate installation and prevent displacement.

[0033] Install the mounting block 3 and the bonding plate 5, and manually pull out the pin 4 so that the pin 4 passes through the corresponding positioning pin 71.

[0034] Install the bonding plate 5 so that the limiting protrusion 51 on the bonding plate 5 is embedded inside the mounting block 3. The limiting protrusion 51 restricts the pin 4 and prevents the pin 4 from sliding, so that the pin 4 and the positioning pin 71 are stably connected. The mounting block 3 and the bonding plate 5 are accurately installed due to the positioning of the threaded post 74.

[0035] Finally, tighten the locking nuts 6. Under the action of the symmetrically distributed locking nuts 6, the mounting plate 2, mounting block 3 and bonding plate 5 are installed stably, thereby achieving the purpose of installing and fixing the diesel engine rear cover plate 1. It has the function of assisted installation of positioning the diesel engine rear cover plate 1. The number of locking nuts 6 required is small and easy to install.

[0036] In summary: The diesel engine rear cover plate of this application has a design for auxiliary installation positioning and fixing. The positioning pin 71 and the threaded pin 74 position the diesel engine rear cover plate 1 and the mounting plate 2, ensuring accurate installation and preventing displacement. The insert pin 4 passes through the corresponding positioning pin 71, fixing the diesel engine rear cover plate 1 between the positioning plate 72 and the mounting plate 2. Under the action of the locking nut 6, the mounting plate 2, the mounting block 3, and the mating plate 5 are installed stably. The number of locking nuts 6 required is small, making installation easy.

[0037] 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. An easy-to-install diesel engine rear cover, characterized in that: include Diesel engine rear cover plate (1); The mounting positioning assembly includes a positioning plate (72), a positioning pin (71) and a threaded post (74) of the vertical positioning plate (72), a reinforcing bolt (73) that passes through the positioning plate (72), and a locking nut (6) that is threadedly connected to the threaded post (74). The fixing components include a mounting plate (2), a pull-out mounting block (3) and a pin post (4), a welded bonding plate (5) and a limiting protrusion (51).

2. The easily installable diesel engine rear cover plate according to claim 1, characterized in that: Both the mounting plate (2) and the positioning plate (72) are frame structures with the same geometry.

3. The easily installable diesel engine rear cover plate according to claim 1, characterized in that: The positioning plate (72) has a recessed bolt groove on its side, and the reinforcing bolt (73) is located in the bolt groove. The surface of the reinforcing bolt (73) is flush with the surface of the positioning plate (72).

4. The easily installable diesel engine rear cover plate according to claim 1, characterized in that: The diesel engine rear cover plate (1) and mounting plate (2) are provided with a first round hole through which the positioning pin (71) passes, and the diesel engine rear cover plate (1), mounting block (3) and bonding plate (5) are provided with a second round hole c through which the threaded pin (74) passes.

5. The easily installable diesel engine rear cover plate according to claim 4, characterized in that: The mounting block (3) has a recessed movable groove b with a rectangular orthographic projection on its surface facing the bonding plate (5), and the second circular hole c is connected to the movable groove b.

6. The easily installable diesel engine rear cover plate according to claim 5, characterized in that: The pin (4) has a "T" shaped structure at one end within the movable groove b, and the limiting protrusion (51) is embedded inside the movable groove b.

7. The easily installable diesel engine rear cover plate according to claim 1, characterized in that: The positioning pin (71) has a pin hole a through which the corresponding insertion pin (4) passes.