Gas engine oil pan convenient to maintain
By designing detachable protective plate components and observation plates, the maintenance problem of wear and damage to the oil pan of a gas engine was solved, enabling quick and easy on-site maintenance and improving the maintenance efficiency and safety of the gas engine.
Patent Information
- Application Number
- CN202423257097.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-29
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-29
AI Technical Summary
When the oil pan of a gas engine wears or is damaged, it is inconvenient to repair, especially in outdoor locations. Traditional repair methods are time-consuming and labor-intensive, affecting the safe operation of the engine.
A gas engine oil pan designed for easy maintenance employs a detachable protective plate assembly and observation plate, allowing for quick on-site disassembly and inspection. The assembly includes a straight groove cylinder, a first cover plate, bolts, an observation plate, and a disassembly support bar, simplifying the disassembly process and allowing observation of the cause of the fault through the observation hole.
It enables quick and easy on-site repairs, saving time and costs, improving repair efficiency, and reducing reliance on cranes and factory repairs.
Smart Images

Figure CN223498005U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of gas engine technology, specifically relating to a gas engine oil pan that is easy to maintain. Background Technology
[0002] In recent years, gas engines have been used more and more widely due to their advantages of energy saving and environmental protection. The oil pan is a component of a gas engine, and its main function is to store engine oil and seal the crankcase.
[0003] The oil pump is located inside the oil pan and generally does not require maintenance during use. However, after the unit has run for about 10,000 hours, the inner spline surface of the connecting sleeve may wear and be damaged, and the drive shaft and bearings are also prone to damage. This will cause low engine oil pressure and reduced oil volume, seriously threatening the safe operation of the gas engine. When the oil pump or its transmission parts are damaged, repair is extremely inconvenient. When the engine is in an outdoor location, the inconvenience is further aggravated. On-site handling is generally as follows: Option 1 is to return the engine to the factory for repair, which will take a long time; Option 2 is to rent a crane on-site to lift the engine, remove the oil pan, and then repair the oil pump transmission parts, which is also very inconvenient.
[0004] Therefore, there is an urgent need for a gas engine oil pan that can be quickly repaired and maintained on-site. Utility Model Content
[0005] This invention addresses the aforementioned problems by providing a gas engine oil pan that is easy to maintain.
[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a gas engine oil pan that is easy to maintain, including a body structure, the body structure including a body, an oil pan and an oil pump, the lower end of the body being detachably connected to the oil pan, the body being detachably connected to the oil pump, and the body structure also including a protective plate assembly;
[0007] The protective plate assembly includes a straight groove cylinder, a first cover plate, bolts, and gaskets. The straight groove cylinder is fixedly connected to the side of the oil pan. The two ends of the gasket are respectively attached to the first cover plate and the straight groove cylinder. The first cover plate is detachably connected to the straight groove cylinder by bolts.
[0008] Preferably, the protective plate assembly further includes an observation plate. The first cover plate includes a cover plate body and a cover plate spiral portion. The cover plate body has an observation hole. The cover plate body and the cover plate spiral portion are fixedly connected. The end of the cover plate spiral portion away from the cover plate body is detachably connected to the observation plate.
[0009] Preferably, the protective plate assembly further includes a disassembly support strip, the disassembly support strip being horizontal in the length direction and fixedly connected to the end of the oil pan away from the straight groove cylinder.
[0010] Preferably, the disassembly support bar has rounded corners.
[0011] Preferably, the gasket is an asbestos-free sheet gasket.
[0012] Preferably, the body structure also includes an oil drain pipe, which is detachably connected to the lower end of the oil pan.
[0013] Preferably, the oil pump includes an oil pump body, an oil pump bracket, a connecting sleeve, a drive shaft, a bearing, and a drive gear. The oil pump body and the oil pump bracket are detachably connected. The upper end of the oil pump bracket is detachably connected to the lower end of the engine body. The oil pump body is detachably connected to the drive shaft. The connecting sleeve, the bearing, and the drive gear are all detachably connected to the drive shaft.
[0014] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0015] (1) The first cover plate is detachably connected to the straight groove cylinder by bolts, which enables quick disassembly on site and maintenance can be carried out on site without returning to the factory for maintenance, saving time and eliminating the need to rent a crane to remove the entire oil pan, which greatly facilitates on-site maintenance personnel and saves costs.
[0016] (2) The end of the spiral part of the cover plate away from the main body of the cover plate is detachably connected to the observation plate. After removing the observation plate, the cause of the fault can be observed through the observation hole of the cover plate, which makes it easy to determine whether subsequent maintenance can be carried out based on the existing tools. There is no need to disassemble the entire protective plate assembly. The operation is simple. The internal pressure can also be reduced by removing the observation plate, which makes it easier to drain oil through the drain pipe. The drain process is faster and improves maintenance efficiency.
[0017] (3) The disassembly support bar has rounded corners to prevent sharp parts from scratching hands, and the disassembly support bar also provides support, making it easier to replace parts such as drive shafts and bearings, and the corresponding disassembly tools are subjected to force. Attached Figure Description
[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below:
[0019] Figure 1 A cross-sectional view of the oil pan of a gas engine for easy maintenance;
[0020] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle;
[0021] Figure 3 Side view of the oil pan of a gas engine for easy maintenance;
[0022] Figure 4 Front view of the protective plate assembly for the oil pan of a gas turbine engine, designed for easy maintenance;
[0023] Figure 5 Side view of the protective plate assembly for the oil pan of a gas turbine engine, designed for easy maintenance;
[0024] Figure 6 Stereoscopic view of the protective plate assembly for the oil pan of a gas turbine engine to facilitate maintenance. Figure 1 ;
[0025] Figure 7 Stereoscopic view of the protective plate assembly for the oil pan of a gas turbine engine to facilitate maintenance. Figure 2 .
[0026] Figure label:
[0027] 1. Engine body structure; 11. Engine body; 12. Oil pan; 13. Oil pump body; 14. Oil pump bracket; 15. Connecting sleeve; 16. Drive shaft; 17. Bearing; 18. Drain pipe; 19. Drive gear.
[0028] 2. Protective plate assembly; 21. Disassembly support bar; 22. Straight groove cylinder; 23. First cover plate; 24. Bolts; 25. Observation plate; 26. Cover plate body; 27. Cover plate spiral part. Detailed Implementation
[0029] To better understand the above-mentioned objectives, features and advantages of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments.
[0030] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0031] Example 1
[0032] The following is combined Figures 1 to 7 Specific instructions for the oil pan of a gas engine that facilitates maintenance, such as Figure 1 and Figure 3 As shown, a gas engine oil pan that is easy to maintain includes a body structure 1. The body structure 1 includes a body 11, an oil pan 12 and an oil pump. The lower end of the body 11 is detachably connected to the oil pan 12, and the body 11 is detachably connected to the oil pump. The body structure 1 also includes a protective plate assembly 2.
[0033] like Figure 4 and Figure 5As shown, the protective plate assembly 2 includes a straight groove cylinder 22, a first cover plate 23, bolts 24 and gaskets. The straight groove cylinder 22 is fixedly connected to the side of the oil pan 12. The two ends of the gasket are respectively attached to the first cover plate 23 and the straight groove cylinder 22. The first cover plate 23 is detachably connected to the straight groove cylinder 22 by bolts 24.
[0034] like Figure 6 and Figure 7 As shown, the protective plate assembly 2 also includes an observation plate 25. The first cover plate 23 includes a cover plate body 26 and a cover plate spiral part 27. The cover plate body 26 is provided with a cover plate observation hole. The cover plate body 26 and the cover plate spiral part 27 are fixedly connected. The end of the cover plate spiral part 27 away from the cover plate body 26 is detachably connected to the observation plate 25.
[0035] like Figure 6 and Figure 7 As shown, the protective plate assembly 2 also includes a disassembly support strip 21. The disassembly support strip 21 is horizontal in the length direction and is fixedly connected to the end of the oil pan 12 away from the straight groove cylinder 22.
[0036] The support bar 21 has rounded corners.
[0037] The gasket is an asbestos-free sheet gasket.
[0038] like Figure 1 and Figure 2 As shown, the body mechanism 1 also includes an oil drain pipe 18, which is detachably connected to the lower end of the oil pan 12.
[0039] like Figure 1 and Figure 2 As shown, the oil pump includes an oil pump body 13, an oil pump bracket 14, a connecting sleeve 15, a drive shaft 16, a bearing 17, and a drive gear 19. The oil pump body 13 and the oil pump bracket 14 are detachably connected. The upper end of the oil pump bracket 14 is detachably connected to the lower end of the body 11. The oil pump body 13 is detachably connected to the drive shaft 16. The connecting sleeve 15, the bearing 17, and the drive gear 19 are all detachably connected to the drive shaft 16.
[0040] The oil pan 12 is a wet oil pan with an integral welded structure. It is installed on the lower part of the engine block 11 by multiple bolts. The oil pan 12 stores a large amount of engine oil. The oil pump is submerged in the oil and is installed in parallel on the oil pump bracket 14 below the free end of the engine block 11. It is driven by the crankshaft through the transmission gear 19. The oil pump draws oil from the oil pan 12 and then delivers the oil to all parts of the engine that need lubrication. After lubrication, the oil flows back to the oil pan 12 at the bottom of the engine.
[0041] The oil pump bracket 14 is suspended below the engine body 11 to support the oil pump body 13. The oil pump bracket 14 is a hollow cast iron part. The drive shaft 16 is supported in the seat hole of the oil pump bracket 14 by two bearings 17. Its extended end is equipped with a drive gear 19, which meshes with the engine gear system. Its other end is connected to the oil pump through a connecting sleeve 15.
[0042] Working principle of a gas engine oil pan for easy maintenance:
[0043] The first cover plate 23 is detachably connected to the straight groove cylinder 22 by bolts 24, allowing for on-site maintenance without requiring return to the factory. Before disassembling the first cover plate 23, the cause of the fault can be observed through the observation hole of the cover plate after disassembling the observation plate 25.
[0044] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A gas engine oil pan for easy maintenance, comprising a body structure (1), wherein the body structure (1) includes a body (11), an oil pan (12), and an oil pump, wherein the lower end of the body (11) is detachably connected to the oil pan (12), and the body (11) is detachably connected to the oil pump, characterized in that: The body structure (1) also includes a protective plate assembly (2); The protective plate assembly (2) includes a straight groove cylinder (22), a first cover plate (23), bolts (24) and a gasket. The straight groove cylinder (22) is fixedly connected to the side of the oil pan (12). The two ends of the gasket are respectively attached to the first cover plate (23) and the straight groove cylinder (22). The first cover plate (23) is detachably connected to the straight groove cylinder (22) through bolts (24).
2. The gas engine oil pan for easy maintenance according to claim 1, characterized in that: The protective plate assembly (2) also includes an observation plate (25). The first cover plate (23) includes a cover plate body (26) and a cover plate spiral part (27). The cover plate body (26) is provided with a cover plate observation hole. The cover plate body (26) and the cover plate spiral part (27) are fixedly connected. The end of the cover plate spiral part (27) away from the cover plate body (26) is detachably connected to the observation plate (25).
3. The gas engine oil pan for easy maintenance according to claim 1, characterized in that: The protective plate assembly (2) also includes a disassembly support strip (21), which is horizontal in the length direction and is fixedly connected to one end of the oil pan (12) away from the straight groove cylinder (22).
4. The gas engine oil pan for easy maintenance according to claim 3, characterized in that: The disassembly support bar (21) has rounded corners.
5. The convenient maintenance oil pan for a gas engine according to claim 1, characterized in that: The gasket is an asbestos-free sheet gasket.
6. The gas engine oil pan for easy maintenance according to claim 1, characterized in that: The body structure (1) also includes an oil drain pipe (18), which is detachably connected to the lower end of the oil pan (12).
7. The convenient maintenance oil pan for a gas engine according to claim 1, characterized in that: The oil pump includes an oil pump body (13), an oil pump bracket (14), a connecting sleeve (15), a drive shaft (16), a bearing (17), and a drive gear (19). The oil pump body (13) and the oil pump bracket (14) are detachably connected. The upper end of the oil pump bracket (14) is detachably connected to the lower end of the machine body (11). The oil pump body (13) is detachably connected to the drive shaft (16). The connecting sleeve (15), the bearing (17), and the drive gear (19) are all detachably connected to the drive shaft (16).