Engine oil pan air tightness detection device

Abstract

The utility model provides an engine oil pan air tightness detection device, which comprises an engine oil pan and a detection table, the opening edge of the engine oil pan is provided with an integrally formed connecting outer edge, the detection table is provided with a fixed template on the table top, a cylinder body is arranged below the table top, the cylinder body is made of transparent materials, the fixed template is provided with a placing groove, and the engine oil pan is placed in the placing groove with the opening facing upwards. The engine oil pan can sink into the cylinder body; the sealing frame is installed at the top of the detection table, a telescopic cylinder is installed on the sealing frame, the telescopic shaft end of the telescopic cylinder faces downwards and is provided with a pressing plate right facing the upper portion of the containing groove, and a ventilation opening is formed in the pressing plate. When the oil pan to be detected is immersed in water, the telescopic cylinder is started to drive the pressing plate to press the connecting outer edge of the oil pan, so that the oil pan is sealed, gas is injected into the oil pan through the air vent, and if the detected oil pan has cracks and bubbles are generated on the outer surface of the damaged position of the oil pan, the damaged position condition of the oil pan can be quickly determined. And subsequent treatment is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of oil pan air tightness detection, in particular to an oil pan air tightness detection device. Background Art

[0002] The oil pan, also known as the oil sump, is an important part of the engine. It is mainly used to store lubricating oil and seal the crankcase for lubrication of various engine parts. It is stamped from thin steel plates and has a certain strength and rigidity. It can effectively store and distribute lubricating oil to ensure that all moving parts of the engine are fully lubricated, thereby reducing wear and damage.

[0003] Some oil pans may develop cracks during the production process, making them unsalable and unusable. Therefore, oil pans need to be tested for air tightness before leaving the factory. Currently, conventional testing equipment seals the opening of the oil pan and ventilates the interior. The pressure change inside the oil pan is measured by an air pressure sensor to determine whether there are cracks in the oil pan, and then defective products are sorted out.

[0004] However, the cracks in some oil pans are very small and difficult to detect. The above method cannot detect the specific location of the cracks in the oil pan. After sorting out the defective oil pans, the crack locations need to be further detected, resulting in low detection efficiency. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model proposes an oil pan air tightness detection device to solve the above problems.

[0006] The purpose of the utility model is achieved through the following technical solutions:

[0007] The utility model provides an oil pan air tightness detection device, comprising an oil pan, an opening edge of which is provided with an integrally formed connecting outer edge, and further comprising:

[0008] The testing table has a fixed template installed on the table and a cylinder body arranged below, the cylinder body is made of transparent material, a placement groove is opened on the fixed template, the oil pan is placed in the placement groove with the opening facing upwards, and the oil pan can be sunk into the cylinder body;

[0009] A sealing frame is installed on the top of the detection platform. A telescopic cylinder is installed on the sealing frame. The telescopic shaft end of the telescopic cylinder faces downward and is installed with a pressing plate just above the placement groove. A vent is opened on the pressing plate.

[0010] Furthermore, a mounting slot is provided on the detection platform, a bearing ring is provided at the inner bottom of the mounting slot, the fixed template is placed on the bearing ring and its size matches the size of the mounting slot.

[0011] Furthermore, a mounting plate is provided at the bottom end of the telescopic shaft of the telescopic cylinder, and a plurality of fixing studs are provided at the top of the pressing plate. Each of the fixing studs is threadedly screwed through the mounting plate, and a locking nut is screwed at one end of each fixing stud located above the mounting plate.

[0012] Furthermore, a connecting port is provided at a position on the mounting plate corresponding to the vent, a pipe is connected to the top of the connecting port, and the pipe is externally connected to an inflation device.

[0013] Furthermore, a plurality of bearing columns are provided at the bottom of the fixed template, and when the fixed template is placed on the bearing ring, the bottom ends of the bearing columns abut against the bottom of the inner cavity of the cylinder body.

[0014] Furthermore, an extension ring sunk into the cylinder body is provided at the bottom of the placement groove, a placement frame is provided at the inner bottom of the extension ring, the oil pan opening is upwardly located in the extension ring and the outer edge is connected to abut against the placement frame.

[0015] Furthermore, a slope is arranged around the inner side of the bottom of the placement frame.

[0016] It can be seen from the above technical solution that the utility model provides an oil pan air tightness detection device:

[0017] Place the oil pan to be tested in the placement groove with the opening facing upwards, so that the oil pan is submerged in water, start the telescopic shaft of the telescopic cylinder to press down, drive the pressing plate to extend into the placement groove and press the connecting outer edge of the oil pan to seal the oil pan, then start the inflation device to inject gas into the oil pan through the vent. If there are cracks in the oil pan to be tested, bubbles will be generated on the outer surface of the damaged position of the oil pan, so that the damaged position of the oil pan can be quickly determined, which is convenient for subsequent processing and is conducive to improving the detection efficiency;

[0018] The fixed template has multiple models, and each model has the same size but different shapes and sizes of the placement grooves to adapt to different models of oil pans, which is conducive to expanding the application scope of the device, replacing different fixed templates as needed, and reducing detection costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific implementation of the utility model, the following will briefly introduce the drawings required for use in the specific implementation. In all the drawings, each element or part is not necessarily drawn according to the actual scale.

[0020] Figure 1 This is a three-dimensional structural schematic diagram of an oil pan air tightness detection device of the utility model;

[0021] Figure 2It is a cross-sectional view of a main structural schematic diagram of an oil pan air tightness detection device of the utility model;

[0022] Figure 3 for Figure 2 A partial enlarged view of the middle A;

[0023] Reference numerals:

[0024] The oil pan 1 is connected to the outer edge 11;

[0025] Testing table 2, fixed template 21, placement groove 211, bearing column 212, extension ring 213, placement frame 214, ramp 215, cylinder body 22, installation notch 23, bearing ring 231;

[0026] Sealing frame 3, telescopic cylinder 31, pressing plate 32, vent 321, fixing stud 322, locking nut 323, mounting plate 33, connecting port 331, pipeline 332. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation of the utility model is described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific implementation disclosed below.

[0028] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0030] like Figure 1-3 As shown, the present embodiment provides an oil pan air tightness detection device, comprising an oil pan 1, an opening edge of which is provided with an integrally formed connecting outer edge 11, a detection platform 2 and a sealing frame 3.

[0031] A fixed template 21 is installed on the table top of the testing table 2 and a cylinder body 22 is arranged below. The top of the cylinder body 22 is open and is located below the fixed template 21. The cylinder body 22 is made of a transparent material, such as glass or an acrylic plate. A placement groove 211 is opened on the fixed template 21. The oil pan 1 is placed in the placement groove 211 with its opening facing upward. The connecting outer edge 11 of the oil pan 1 can be placed on the inner wall of the placement groove 211, and the oil pan 1 can sink into the cylinder body 22.

[0032] Preferably, an extension ring 213 sunk into the cylinder body 22 is provided at the bottom of the placement groove 211, and a placement frame 214 is provided at the inner bottom of the extension ring 213. The oil pan 1 is located in the extension ring 213 with its opening facing upward and the connecting outer edge 11 is in contact with the placement frame 214. The oil pan 1 is further lowered by the extension ring 213, which is beneficial to ensure that the oil pan 1 is completely submerged in water and improve the accuracy of detection.

[0033] Furthermore, a slope 215 is arranged around the inner side of the bottom of the placement frame 214. The slope 215 can leave the side wall of the oil pan 1 out and not contact it, which helps to prevent the inner side of the placement frame 214 from contacting the oil pan 1 and causing part of the oil pan 1 to be unable to be observed.

[0034] The sealing frame 3 is installed on the top of the detection platform 2. A telescopic cylinder 31 is installed on the sealing frame 3. The telescopic cylinder 31 can be an electric cylinder or a hydraulic cylinder. The telescopic shaft end of the telescopic cylinder 31 faces downward and is installed with a pressing plate 32 just above the placement groove 211. A vent 321 is opened on the pressing plate 32 for external inflation equipment.

[0035] During specific use, the cylinder body 22 is filled with water, and the oil pan 1 to be tested is placed in the placement groove 211 with the opening facing upward, so that the oil pan 1 is submerged in water, and the telescopic shaft of the telescopic cylinder 31 is started to press down, driving the pressing plate 32 to extend into the placement groove 211 and press the connecting outer edge 11 of the oil pan 1 to seal the oil pan 1, and then the inflation device is started to inject gas into the oil pan 1 through the vent 321. If there are cracks in the oil pan 1 to be tested, bubbles will be generated on the outer surface of the damaged position of the oil pan 1, so that the damaged position of the oil pan 1 can be quickly determined, which is convenient for subsequent processing and is conducive to improving the detection efficiency.

[0036] It should be noted that generally the inflation device has its own pressure sensor, so there is no need to equip it with an additional pressure sensor. If the inflation device used does not have a pressure sensor, a pressure sensor can be installed at the bottom of the pressing plate 32 to monitor its internal pressure when detecting the sealing of the oil pan 1.

[0037] In one embodiment, a mounting slot 23 is provided on the testing table 2, and a load-bearing ring 231 is provided at the inner bottom of the mounting slot 23. The fixed template 21 is placed on the load-bearing ring 231 and its size is adapted to the size of the mounting slot 23. The fixed template 21 has multiple models, and each model of the fixed template 21 has the same size but a different shape and size of the placement groove 211 to adapt to different models of oil pans 1, which is beneficial to expand the application scope of the device, replace different fixed templates 21 as needed, and reduce the detection cost.

[0038] In order to adapt to different types of oil pans 1, such as Figure 3 As shown, further, a mounting plate 33 is provided at the bottom end of the telescopic shaft of the telescopic cylinder 31, and a plurality of fixing studs 322 are provided on the top of the pressing plate 32. Each fixing stud 322 is threadedly screwed through the mounting plate 33, and a locking nut 323 is screwed on one end of each fixing stud 322 located above the mounting plate 33. The pressing plate 32 also has models of a plurality of different sizes to more closely fit the connecting outer edge 11 of the oil pan 1. Different pressing plates 32 can be removed and replaced by rotating the locking nut 323.

[0039] Preferably, a connecting port 331 is opened at a position corresponding to the vent 321 on the mounting plate 33. When the pressing plate 32 is installed at the bottom of the mounting plate 33, the connecting port 331 is connected to the vent 321. A pipe 332 is connected to the top of the connecting port 331. The pipe 332 is externally connected to an inflation device, so that there is no need to re-connect the inflation device when replacing the pressing plate 32.

[0040] In one embodiment, a plurality of bearing columns 212 are disposed at the bottom of the fixed template 21, and when the fixed template 21 is placed on the bearing ring 231, the bottom ends of the bearing columns 212 abut against the bottom of the inner cavity of the cylinder body 22, which is beneficial to improving the bearing capacity of the fixed template 21 and preventing the fixed template 21 from being squeezed and deformed. At the same time, preferably, in order to prevent the bottom of the cylinder body 22 from being damaged by the bearing columns 212, the bottom of the cylinder body 22 can be made of materials such as steel plates or concrete.

[0041] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some or all of the technical features may be replaced by equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the various embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. An oil pan air tightness detection device, comprising an oil pan, the opening edge of which is provided with an integrally formed connecting outer edge, characterized in that: Also includes: The testing table has a fixed template installed on the table and a cylinder body arranged below, the cylinder body is made of transparent material, a placement groove is opened on the fixed template, the oil pan is placed in the placement groove with the opening facing upwards, and the oil pan can be sunk into the cylinder body; A sealing frame is installed on the top of the detection platform. A telescopic cylinder is installed on the sealing frame. The telescopic shaft end of the telescopic cylinder faces downward and is installed with a pressing plate just above the placement groove. A vent is opened on the pressing plate.

2. The oil pan air tightness detection device according to claim 1, characterized in that: The detection table is provided with an installation slot, the inner bottom of the installation slot is provided with a bearing ring, the fixed template is placed on the bearing ring and its size is adapted to the size of the installation slot.

3. The oil pan air tightness detection device according to claim 2, characterized in that: A mounting plate is arranged at the bottom end of the telescopic shaft of the telescopic cylinder, and a plurality of fixing studs are arranged at the top of the pressing plate. Each of the fixing studs is threadedly screwed through the mounting plate, and a locking nut is screwed at one end of each fixing stud located above the mounting plate.

4. The oil pan air tightness detection device according to claim 3, characterized in that: A connecting port is provided at a position on the mounting plate corresponding to the vent, a pipe is connected to the top of the connecting port, and the pipe is externally connected to an inflation device.

5. The oil pan air tightness detection device according to claim 2, characterized in that: A plurality of bearing columns are arranged at the bottom of the fixed template, and when the fixed template is placed on the bearing ring, the bottom ends of the bearing columns abut against the bottom of the inner cavity of the cylinder body.

6. The oil pan air tightness detection device according to claim 1, characterized in that: The bottom of the placement groove is provided with an extension ring sunk into the cylinder body, the inner bottom of the extension ring is provided with a placement frame, the oil pan opening is upwardly located in the extension ring and the outer edge is connected to abut against the placement frame.

7. The oil pan air tightness detection device according to claim 6, characterized in that: A slope is arranged around the inner side of the bottom of the placing frame.

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