Self-sealing oil sump

Abstract

The application provides a self-sealing oil sump applied to the field of engine oil sumps, and through cooperation of an upper sealing ring and a compensation sealing ring, when the oil sump is connected with a crankcase, the upper sealing ring is deformed towards the compensation sealing ring under extrusion of a connecting surface, and then the upper sealing ring is in extrusion contact with the compensation sealing ring, the compensation sealing ring is deformed downwards, when the sealing of the upper sealing ring is damaged, the compensation sealing ring gradually recovers deformation, and then an upward pushing force is generated on the inner variable ring, the sealing between the upper sealing ring and the crankcase due to damage is effectively compensated, in addition, in the process of gradual recovery of the compensation sealing ring, the extrusion force of the sealing assisting liquid on the sealing measurement ring gradually decreases, and the sealing measurement ring gradually recovers deformation, at this time, the sealing measurement ring has obvious data change, and then the sealing measurement ring can timely remind the workers, and compared with the prior art, the safety hidden danger is effectively reduced.

Description

Technical Field

[0001] This application relates to the field of engine oil pans, and particularly to a self-sealing oil pan. Background Technology

[0002] The oil pan is the lower part of the crankcase, also known as the lower crankcase. Its function is to seal the crankcase, acting as an outer shell for the oil reservoir, preventing impurities from entering, collecting and storing lubricating oil flowing back from the various friction surfaces of the diesel engine, dissipating some heat, and preventing oil oxidation. The oil pan is located at the bottom of the engine: it is removable and seals the crankcase oil pan as the outer shell for the oil reservoir. Oil pans are mostly made of stamped thin steel sheets, while more complex shapes are generally cast from cast iron or aluminum alloy. It contains an oil baffle to prevent oil surface splashing caused by engine vibrations, and facilitates the settling of impurities in the lubricating oil. A dipstick is mounted on the side for checking the oil level. In addition, a drain plug is installed at the lowest point of the oil pan.

[0003] However, existing oil pan sealing structures generally involve placing a rubber ring between the oil pan and the bottom of the upper part of the crankcase. When connected, the two are tightened with multiple bolts, and the rubber ring is stressed to achieve a seal between them. However, this sealing method is relatively simple, and when the seal is damaged, oil leakage is likely to occur. Since the crankcase is not directly exposed to the equipment, it is difficult to detect oil leakage in time, which not only affects the normal operation of the equipment but also poses a significant safety hazard. Summary of the Invention

[0004] The purpose of this application is to achieve sealing compensation and to enable timely detection of oil leaks, thereby reducing safety hazards. Compared with the prior art, this application provides a self-sealing oil pan, including a shell, with a mounting plate fixedly connected to the edge of the shell opening. The mounting plate has multiple evenly distributed mounting holes. An upper sealing ring is fixedly connected to the upper end of the mounting plate, and a compensation sealing ring is fixedly connected to the lower end of the mounting plate. Both the upper sealing ring and the compensation sealing ring are located inside the multiple mounting holes. The mounting plate also has multiple auxiliary sealing holes, which are located between the upper sealing ring and the compensation sealing ring. The upper sealing ring includes an upper sealing ring and an inner variable ring fixedly connected to the upper and lower openings of the auxiliary sealing holes, respectively. The edges of the upper sealing ring and the inner variable ring extend to the inner wall of the auxiliary sealing hole and are fixed to each other. The upper sealing ring is saturated with inert gas, and the compensation sealing ring is saturated with sealing fluid.

[0005] By using the coordinated design of the upper sealing ring and the compensating sealing ring, when the oil pan is connected to the crankcase, the upper sealing ring is squeezed by the connection surface and deforms towards the inside of the compensating sealing ring, thus making it press against the compensating sealing ring. The compensating sealing ring undergoes a certain downward deformation. When the upper sealing ring is damaged, the compensating sealing ring gradually recovers its deformation, thereby generating an upward pushing force on the inner deformation ring, effectively compensating for the sealing loss between the upper sealing ring and the crankcase due to damage. In addition, during the process of the compensating sealing ring gradually recovering its deformation, the pressure of the sealing fluid on the pressure measuring ring gradually decreases, and it gradually recovers its deformation. At this time, the pressure measuring ring shows obvious data changes, which can promptly remind the staff. Compared with the existing technology, this effectively reduces safety hazards.

[0006] Furthermore, the cross-sectional diameter of the upper sealing ring is smaller than that of the compensating sealing ring, and the opening diameter of the auxiliary sealing hole is smaller than that of the upper sealing ring. This ensures that the edge of the upper sealing ring is located on the mounting plate and fixed to it, effectively guaranteeing the stability of the connection between the upper sealing ring and the mounting plate. It is not easy for the ring to shift due to compression, thus making the sealing effect relatively stable.

[0007] Furthermore, the upper sealing ring has an upwardly convex semi-circular cross-section, while the inner variable ring has a downwardly convex arc-shaped structure. When the oil pan is installed on the crankcase, the upper sealing ring is compressed, and the inert gas inside is compressed, which causes the inner variable ring to deform downward. When the upper sealing ring is compressed, it is generally in hard contact on one side and in elastic contact on the other. Compared with the double-sided hard contact of the prior art, it can effectively protect the upper sealing ring, making it less likely to be damaged under the same pressure. In addition, when the elasticity is damaged, the pushing force generated by the inner variable convex layer recovering its deformation can make the upper sealing ring play a certain compensating role in the seal between the housing and the crankcase.

[0008] Furthermore, the compensation sealing ring includes an outer fixed ring shell fixedly connected to the lower end of the mounting plate and an inner variable protrusion layer fixedly connected to the inner wall of the outer fixed ring shell. The inner variable protrusion layer is in contact with the middle of the inner variable ring. The cross-section of the outer fixed ring shell is a rigid, shaped semi-circular structure, and the inner variable protrusion layer is an upwardly bulging elastic structure, so that the inner variable protrusion layer can deform downward under the force of the upper sealing ring. At the same time, due to its recovery deformation, it can generate an upward pushing force on the upper sealing ring.

[0009] Optionally, a density measuring ring and an outer control cover ring are fixedly connected to the bottom of the outer fixed ring shell. The outer control cover ring is located outside the density measuring ring. The cross sections of the density measuring ring and the outer control cover ring are coaxially arranged and do not contact each other. The density measuring ring is connected to the outer fixed ring shell.

[0010] Furthermore, the pressure measuring ring includes a liquid level inlet, a fluid-changing section fixedly connected to the lower end of the liquid level inlet, and a display sphere fixedly connected to the bottom of the fluid-changing section. A color-changing sheet is fixedly connected to the inner wall of the display sphere, and the color-changing sheet and the display sphere are filled with a colored solution. When the oil pan is not in contact with the crankcase, the pressure measuring ring does not contact the outer control cover ring, and the auxiliary sealing fluid naturally enters the display sphere. At this time, the color-changing sheet is relatively horizontal, and the part below the center line of the display sphere can be observed to be colored from the outside. After installation, due to compression, the auxiliary sealing fluid enters the pressure measuring ring, causing the fluid-changing section to expand outward and compress the pressure measuring ring, thus generating force data. When the upper sealing ring is damaged, the compensation sealing ring gradually recovers, and the deformation of the pressure measuring ring gradually decreases, causing the force data to gradually decrease until it disappears. When the force data is less than the predetermined data on the pressure measuring ring, or when the data disappears, the data can be transmitted to the operator's mobile terminal or the on-site display terminal to remind the operator and reduce safety hazards.

[0011] Furthermore, the color-changing sheet has an elastic structure, the display sphere shell has a rigid transparent structure, and the fluid-changing section has an elastic sealing structure. When not subjected to compressive force, the fluid-changing section has a straight longitudinal structure. Additionally, when the seal is normal, the sealing fluid enters the display sphere shell and exerts compressive force on the color-changing sheet.

[0012] Furthermore, the liquid inlet is a rigid structure, and the upper part of the liquid inlet cross-section is larger than the lower part. When squeezed, the sealing liquid enters the display sphere shell, exerting downward pressure on the color-changing film, causing it to gradually deform against the inner wall of the display sphere shell. This results in the display color range observed from the outside exceeding half. During maintenance, this phenomenon can be used to roughly determine whether the upper sealing ring is sealing properly.

[0013] Furthermore, a force-measuring ring is installed on the inner wall of the outer control ring, and a pressure sensor is installed inside the force-measuring ring. The force-measuring ring is directly opposite the middle of the hydraulic section, and the end face of the force-measuring ring facing the center of the outer control ring is a relaxed flexible structure. This flexible structure can protect the pressure sensor and also does not affect the change of the pressure sensor's force data when the force-measuring ring expands and applies force to it.

[0014] Compared to existing technologies, the advantages of this application are:

[0015] By using the coordinated design of the upper sealing ring and the compensating sealing ring, when the oil pan is connected to the crankcase, the upper sealing ring is squeezed by the connection surface and deforms towards the inside of the compensating sealing ring, thus making it press against the compensating sealing ring. The compensating sealing ring undergoes a certain downward deformation. When the upper sealing ring is damaged, the compensating sealing ring gradually recovers its deformation, thereby generating an upward pushing force on the inner deformation ring, effectively compensating for the sealing loss between the upper sealing ring and the crankcase due to damage. In addition, during the process of the compensating sealing ring gradually recovering its deformation, the pressure of the sealing fluid on the pressure measuring ring gradually decreases, and it gradually recovers its deformation. At this time, the pressure measuring ring shows obvious data changes, which can promptly remind the staff. Compared with the existing technology, this effectively reduces safety hazards. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present application;

[0017] Figure 2 This is a perspective view of this application viewed from below;

[0018] Figure 3 This is a top view of this application;

[0019] Figure 4 This is a side view of this application;

[0020] Figure 5 for Figure 4 A schematic diagram at point A in the middle;

[0021] Figure 6 This is a schematic diagram of the cross-section of the sealing ring and the compensation sealing ring in this application;

[0022] Figure 7 This is a schematic diagram of the cross-section of the upper sealing ring and the compensation sealing ring when installed on the crankcase according to this application;

[0023] Figure 8 This is a schematic diagram of the cross-section of the measuring ring in Embodiment 2 of this application;

[0024] Figure 9 This is a schematic diagram of the cross-section of the measuring ring when the present application is installed on the crankcase;

[0025] Figure 10 This is a 3D diagram of the existing technology.

[0026] Explanation of the labels in the diagram:

[0027] 11 Housing, 12 Mounting plate, 13 Mounting hole, 2 Upper sealing ring, 21 Upper sealing ring, 22 Inner variable ring, 3 Compensation sealing ring, 31 Outer fixed ring housing, 32 Inner variable convex layer, 4 Measuring ring, 41 Degree liquid port, 42 Liquid variable section, 43 Display ball housing, 5 Outer control cover ring, 51 Force measuring ring, 6 Color change plate. Detailed Implementation

[0028] The embodiments will be described clearly and completely with reference to the accompanying drawings. All other embodiments obtained by those skilled in the art based on the embodiments in this application without creative effort are within the scope of protection of this application.

[0029] Example 1:

[0030] This invention provides a self-sealing oil pan; please refer to [link / reference]. Figure 1-2 The device includes a housing 11, with a mounting plate 12 fixedly connected to the edge of the housing 11 opening. The mounting plate 12 has multiple evenly distributed mounting holes 13. An upper sealing ring 2 is fixedly connected to the upper end of the mounting plate 12, and a compensating sealing ring 3 is fixedly connected to the lower end of the mounting plate 12. Figure 3 The upper sealing ring 2 and the compensation sealing ring 3 are both located inside the multiple mounting holes 13.

[0031] like Figure 4-5 The cross-sectional diameter of the upper sealing ring 2 is smaller than that of the compensation sealing ring 3, and the opening diameter of the auxiliary sealing hole is smaller than that of the upper sealing ring 2. This ensures that the edge of the upper sealing ring 21 is located on the mounting plate 12 and fixed to the mounting plate 12, effectively guaranteeing the stability of the connection between the upper sealing ring 2 and the mounting plate 12. It is not easy for it to be displaced due to compression, thus making the sealing effect relatively stable.

[0032] Please see Figure 6 In the figure, a represents the auxiliary sealing hole, and b represents the crankcase. A sealing ring groove is chiseled on the end face of the crankcase opposite to the mounting plate 12. The sealing ring groove is positioned opposite to the upper sealing ring 2. Multiple sealing aid holes are also drilled on the mounting plate 12. These holes are located between the upper sealing ring 2 and the compensating sealing ring 3. The upper sealing ring 2 includes an upper sealing ring 21 and an inner variable ring 22, which are fixedly connected to the upper and lower openings of the sealing aid holes, respectively. The edges of the upper sealing ring 21 and the inner variable ring 22 extend to the inner wall of the sealing aid hole and are fixed to each other. The upper sealing ring 2 is saturated with inert gas, and the compensating sealing ring 3 is saturated with sealing aid liquid. The compensating sealing ring 3 includes an outer fixed ring shell 31 fixedly connected to the lower end of the mounting plate 12 and an inner variable protrusion layer 32 fixedly connected to the inner wall of the outer fixed ring shell 31. The inner variable protrusion layer 32 is in contact with the middle of the inner variable ring 22. The outer fixed ring shell 31 has a rigid, shaped semi-circular cross-section, and the inner variable protrusion layer 32 is an upwardly bulging elastic structure, which allows the inner variable protrusion layer 32 to deform downward under the force of the upper sealing ring 2. At the same time, due to its recovery deformation, it can generate an upward pushing force on the upper sealing ring 2.

[0033] The upper sealing ring 21 has an upwardly convex semi-circular cross-section, while the inner variable ring 22 has a downwardly convex arc-shaped structure, as shown below. Figure 7When the oil pan is installed on the crankcase, the upper sealing ring 21 is compressed, and the inert gas inside is compressed, which causes the inner variable ring 22 to deform downward. When the upper sealing ring 2 is compressed, it is generally in hard contact on one side and in elastic contact on the other side. Compared with the double-sided hard contact of the prior art, it can effectively protect the upper sealing ring 2, making it less likely to be damaged under the same pressure. In addition, when the elasticity is damaged, the pushing force generated by the inner variable protrusion 32 to recover its deformation can make the upper sealing ring 2 play a certain compensating role in the seal between the housing 11 and the crankcase.

[0034] Through the coordinated arrangement of the upper sealing ring 2 and the compensating sealing ring 3, when the oil pan is connected to the crankcase, the upper sealing ring 2 is squeezed by the connecting surface and deforms towards the compensating sealing ring 3, thus making it press against the compensating sealing ring 3. The compensating sealing ring 3 undergoes a certain downward deformation. When the seal of the upper sealing ring 2 is damaged, the compensating sealing ring 3 will gradually recover its deformation, thereby generating an upward pushing force on the inner deformation ring 22, effectively compensating for the sealing performance between the upper sealing ring 2 and the crankcase due to damage. In addition, during the process of the compensating sealing ring 3 gradually recovering its deformation, the pressure of the sealing fluid on the pressure measuring ring 4 gradually decreases, and it gradually recovers its deformation. At this time, the pressure measuring ring 51 shows a significant data change, which can promptly remind the staff. Compared with Figure 10 Existing technologies effectively reduce safety risks.

[0035] Example 2:

[0036] Please see Figure 8 The bottom of the outer ring shell 31 is fixedly connected to a pressure measuring ring 4 and an outer control ring 5. A force measuring ring 51 is installed on the inner wall of the outer control ring 5, and a pressure sensor is installed inside the force measuring ring 51. The force measuring ring 51 is directly opposite the middle of the hydraulic section 42, and the end face of the force measuring ring 51 facing the center of the outer control ring 5 is a relaxed flexible structure. The outer control ring 5 is located outside the pressure measuring ring 4. The cross sections of the pressure measuring ring 4 and the outer control ring 5 are coaxially arranged and do not contact each other. This flexible structure can protect the pressure sensor and does not affect the change of the pressure sensor's force data when the pressure measuring ring 4 expands and applies force to it.

[0037] The pressure testing ring 4 is interconnected with the outer fixed ring shell 31. The pressure testing ring 4 includes a liquid level inlet 41, a liquid level change section 42 fixedly connected to the lower end of the liquid level inlet 41, and a display sphere shell 43 fixedly connected to the bottom of the liquid level change section 42. A color-changing sheet 6 is fixedly connected to the inner wall of the middle part of the display sphere shell 43. The color-changing sheet 6 and the display sphere shell 43 are filled with a colored solution. When the oil pan is not in contact with the crankcase, the pressure testing ring 4 does not contact the outer control cover ring 5, and the sealing fluid naturally enters into the display sphere shell 43. At this time, the color-changing sheet 6 is relatively horizontal, and the part below the center line of the display sphere shell 43 can be observed to be colored from the outside. Figure 9After installation, due to compression, the sealing fluid enters the pressure measuring ring 4, causing the hydraulic section 42 to expand outward and compress the force measuring ring 51, generating force data. When the upper sealing ring 2 is damaged, the compensation sealing ring 3 gradually recovers, and the deformation of the pressure measuring ring 4 gradually decreases, causing the force data to gradually decrease until it disappears. When the force data is less than the predetermined data on the force measuring ring 51, or when the data disappears, the data can be transmitted to the staff's mobile terminal or the on-site display terminal to remind the staff and reduce safety hazards.

[0038] The color-changing sheet 6 has an elastic structure, the display sphere shell 43 has a rigid transparent structure, and the fluid-changing section 42 has an elastic sealing structure. When not subjected to compressive force, the fluid-changing section 42 has a straight longitudinal structure. Furthermore, when the seal is normal, the sealing fluid enters the display sphere shell 43 and exerts compressive force on the color-changing sheet 6.

[0039] The liquid inlet 41 is a rigid structure, and the upper part of the liquid inlet 41 is larger than the lower part. When it is squeezed, the sealing liquid enters into the display sphere shell 43, which exerts downward pressure on the color change sheet 6, causing it to gradually deform against the inner wall of the display sphere shell 43. This makes the range of the displayed color observed from the outside exceed half. During maintenance, this phenomenon can be used to roughly determine whether the upper sealing ring 2 is sealing properly.

[0040] This embodiment adds the above content to the original embodiment 1, while the rest remains the same as the original embodiment 1.

[0041] The above description is only the best implementation method adopted in this application in combination with current practical needs, but the scope of protection of this application is not limited thereto.

Claims

1. A self-sealing oil pan, comprising a housing (11), wherein a mounting plate (12) is fixedly connected to the edge of the opening of the housing (11), and the mounting plate (12) has a plurality of evenly distributed mounting holes (13), characterized in that, The upper end of the mounting plate (12) is fixedly connected to an upper sealing ring (2), and the lower end of the mounting plate (12) is fixedly connected to a compensating sealing ring (3). The upper sealing ring (2) and the compensating sealing ring (3) are both located inside multiple mounting holes (13). Multiple auxiliary sealing holes are also drilled on the mounting plate (12). The multiple auxiliary sealing holes are all located between the upper sealing ring (2) and the compensating sealing ring (3). The upper sealing ring (2) includes an upper sealing ring (21) and an inner variable ring (22) fixedly connected to the upper and lower openings of the auxiliary sealing holes, respectively. The edges of the upper sealing ring (21) and the inner variable ring (22) extend to the inner wall of the auxiliary sealing hole and are fixed to each other. The upper sealing ring (2) is saturated with inert gas, and the compensating sealing ring (3) is saturated with sealing fluid. The compensating sealing ring (3) includes a fixed connection to the lower end of the mounting plate (12). The outer fixed ring shell (31) has a density measuring ring (4) and an outer control ring (5) fixedly connected to its bottom. The density measuring ring (4) includes a liquid inlet (41), a liquid-changing section (42) fixedly connected to the lower end of the liquid inlet (41), and a display sphere shell (43) fixedly connected to the bottom of the liquid-changing section (42). A color-changing sheet (6) is fixedly connected to the inner wall of the middle part of the display sphere shell (43). The color-changing sheet (6) and the display sphere shell (43) are filled with colored solution. The color-changing sheet (6) is an elastic structure. The display sphere shell (43) is a hard transparent structure. The liquid-changing section (42) is an elastic sealing structure. When not subjected to extrusion pressure, the liquid-changing section (42) is a straight structure in the longitudinal direction. A force measuring ring (51) is installed on the inner wall of the outer control ring (5). A pressure sensor is installed in the force measuring ring (51).

2. The self-sealing oil pan according to claim 1, characterized in that, The cross-sectional diameter of the upper sealing ring (2) is smaller than that of the compensation sealing ring (3), and the opening diameter of the auxiliary sealing hole is smaller than that of the upper sealing ring (2).

3. The self-sealing oil pan according to claim 1, characterized in that, The upper sealing ring (21) has an upwardly convex semi-circular structure in cross section, and the inner variable ring (22) has a downwardly convex arc-shaped structure.

4. A self-sealing oil pan according to claim 3, characterized in that, The compensation sealing ring (3) also includes an inner variable protrusion layer (32) fixedly connected to the inner wall of the outer fixed ring shell (31), and the inner variable protrusion layer (32) is in contact with the middle part of the inner variable ring (22).

5. A self-sealing oil pan according to claim 4, characterized in that, The outer fixed ring shell (31) has a rigid, shaped semi-circular structure in cross section, and the inner variable convex layer (32) is an upwardly bulging elastic structure.

6. A self-sealing oil pan according to claim 1, characterized in that, The outer control ring (5) is located outside the density measuring ring (4). The density measuring ring (4) and the outer control ring (5) are coaxially arranged and do not contact each other. The density measuring ring (4) is connected to the outer fixed ring shell (31).

7. A self-sealing oil pan according to claim 1, characterized in that, The liquid inlet (41) is a rigid structure, and the upper part of the liquid inlet (41) cross-section is larger and the lower part is smaller.

8. A self-sealing oil pan according to claim 1, characterized in that, The force measuring ring (51) is directly opposite the middle of the hydraulic section (42), and the end face of the force measuring ring (51) facing the center of the outer control ring (5) is a relaxed flexible structure.

Images