An automobile oil pan sealing performance detection device

Abstract

The present invention relates to the technical field of oil pan detection, and particularly relates to an airtightness detection device for an automobile oil pan, which includes a detection table. A water tank box is arranged at the upper end of the detection table. Four limiting shells are fixedly installed inside the water tank box. Sliders are respectively installed in the four limiting shells in a vertically sliding manner. A positioning shell is fixedly installed among the four sliders. A top pressure spring is fixedly installed at the bottom end of each slider. Guide shafts are respectively fixedly installed at the four corners of the detection table. A pressing plate is installed between the four guide shafts in a vertically sliding manner. A detection component is arranged at the bottom end of the pressing plate. An edge strip is fixedly installed inside the positioning shell. A filtering component is arranged inside the water tank box. The positioning rod can be accurately inserted into the installation hole, facilitating the airtightness detection of the oil pan and improving the convenience of operation. Due to the setting of the sealing ring, water is prevented from entering the oil pan, improving the accuracy of detection and ensuring the reliability and safety of the product.

Description

Technical Field

[0001] The present invention relates to the technical field of oil pan detection, and particularly relates to a sealing detection device for an automobile oil pan. Background Art

[0002] The oil pan is the lower half of the crankcase, also known as the lower crankcase; its function is to enclose the crankcase as the outer shell of the oil storage tank, prevent impurities from entering, collect and store the lubricating oil flowing back from each friction surface of the diesel engine, dissipate part of the heat, and prevent the lubricating oil from oxidizing; the oil pan is located at the lower part of the engine, can be disassembled and assembled, and seals the crankcase as the outer shell of the oil storage tank. The oil pan is mostly formed by stamping thin steel plates, with a relatively complex shape, and is generally formed by casting with cast iron or aluminum alloy. After the production of the oil pan is completed, its sealing performance needs to be detected for qualification.

[0003] Currently, the sealing detection of the oil pan mainly adopts the immersion detection method. Manually use bolts to fasten the oil pan, then immerse the closed oil pan in water, and inject compressed air into the oil pan to observe whether there is leakage in the oil pan; due to the large number of mounting holes in the oil pan, each time bolts are used for fixation, the process is relatively cumbersome, the operation labor intensity is relatively large, and the detection process is all manually carried out for feeding, resulting in low detection efficiency.

[0004] Therefore, the present invention provides a sealing detection device for an automobile oil pan to solve the above problems. Summary of the Invention

[0005] In view of the above situation, in order to overcome the deficiencies of the prior art, the present invention provides a sealing detection device for an automobile oil pan, which effectively solves the problems that when the existing oil pan is fixed with bolts, the process is relatively cumbersome, the operation labor intensity is relatively large, and the detection process is all manually carried out for feeding, resulting in low detection efficiency.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is as follows:

[0007] A sealing detection device for an automobile oil pan includes a detection table, a water tank box is arranged at the upper end of the detection table, four limiting shells are fixedly installed inside the water tank box, sliders are respectively installed in the four limiting shells in a vertically sliding manner, a positioning shell is fixedly installed among the four sliders, a top pressure spring is fixedly installed at the bottom end of each slider, guide shafts are respectively fixedly installed at the four corners of the detection table, a pressing plate is installed between the four guide shafts in a vertically sliding manner, a detection component is arranged at the bottom end of the pressing plate, an edge strip is fixedly installed inside the positioning shell, and a filtering component is arranged inside the water tank box.

[0008] Preferably, a backing plate is fixedly installed at the top of the inspection table. A first telescopic rod is arranged at the front end of the backing plate. A top table is fixedly installed jointly between the tops of the four guide shafts. A pressure cylinder is fixedly installed at the top of the top table. The telescopic end of the pressure cylinder is fixedly connected with a pressing plate.

[0009] Preferably, built-in holes are respectively formed in the pressing plate and the top table. Vertical side plates are fixedly installed on the left side and the right side of the two built-in holes respectively. Two bumps are fixedly installed on each vertical side plate. A first sprocket group is arranged between the two bumps on the same side. A plurality of cushion blocks are evenly arranged on each first sprocket group. A stepping component is arranged at the rear side of the inspection table. A plurality of oil sumps are arranged between the two first sprocket groups.

[0010] Preferably, the detection component includes a built-in plate. The built-in plate is fixedly installed at the bottom end of the pressing plate. A plurality of support rods are fixedly arranged at the bottom end of the built-in plate. A backing plate ring is jointly arranged between the bottom ends of the plurality of support rods. A plurality of positioning shafts are fixedly arranged at the bottom end of the backing plate ring. A sliding sleeve is sleeved on each positioning shaft. A compression spring is arranged at the upper end of each sliding sleeve. A sealing pressing plate is jointly arranged between the bottom ends of the plurality of sliding sleeves.

[0011] Preferably, an auxiliary plate is fixedly installed at the front end of each vertical side plate. A plurality of rollers are evenly rotatably installed on each auxiliary plate. A guide plate is fixedly installed at the top end of each auxiliary plate.

[0012] Preferably, the stepping component includes a driving motor. A first gear is arranged at the lower end of the first sprocket group on the right side. A second sprocket group is arranged at the lower end of the first sprocket group on the left side. A second gear meshing with the first gear is arranged on the second sprocket group. The driving motor is installed on the second sprocket group. A boosting plate is fixedly installed at the rear end of the inspection table. A second telescopic rod is installed on the boosting plate.

[0013] Preferably, a positioning rod is fixedly installed at the bottom end of each sliding sleeve. A sealing ring is fixedly installed at the bottom end of the sealing pressing plate. An air conveying device is fixedly installed at the top end of the sealing pressing plate. A control device is fixedly installed at the top end of the pressing plate.

[0014] Preferably, a blocking column is fixedly installed at the front end of the positioning shell. A blocking plate is fixedly installed at the rear end of each first sprocket group.

[0015] Preferably, the filtering component includes a filtering baffle. The filtering baffle is fixedly installed inside the water tank box. Two conveying pipes are installed on the bottom end of the filtering baffle through fixed rods. Rectangular holes communicating with each conveying pipe are formed in the filtering baffle. A first one-way valve is fixedly installed at one end of each conveying pipe. A conveying auger is rotatably installed inside each conveying pipe. A driving gear is coaxially and fixedly installed at one end of each conveying auger. A driving rack engaged with each driving gear is slidably installed up and down at one end of the filtering baffle. A pressing spring is arranged on the driving rack. Filtering holes are arranged on one side of each conveying pipe. A second one-way valve is arranged on the filtering baffle.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. By detecting the sealing performance of the oil pan, it can be ensured that the engine oil will not leak, thereby reducing environmental pollution, reducing waste of engine oil, improving fuel efficiency, enabling personnel to quickly know the position where the oil pan is damaged, extending the service life of the engine, ensuring the safety of the vehicle during driving, avoiding engine damage and wear of other components caused by engine oil leakage, and saving cost funds.

[0018] 2. By driving each oil pan to move downward synchronously with the first sprocket group, automatic feeding of the oil pan is achieved, and the sealing performance detection and feeding of the oil pan can be carried out without excessive participation of personnel, further improving the detection efficiency.

[0019] 3. Through the coordinated use of the built-in plate, support rod, backing ring, positioning shaft, sliding sleeve, compression spring, and sealing pressing plate, the positioning rod can be accurately inserted into the installation hole, facilitating the sealing performance detection of the oil pan, improving the convenience of operation. Due to the setting of the sealing ring, water is prevented from entering the oil pan, improving the accuracy of detection and ensuring the reliability and safety of the product.

[0020] 4. While detecting the sealing performance of the oil pan, the device can also treat the sewage inside the water tank box, improving the cleanliness of the sewage and facilitating personnel to observe the sealing performance of the oil pan. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a three-dimensional state schematic diagram of the present invention;

[0022] Figure 2 is a schematic diagram of the installation position of the water tank box of the present invention;

[0023] Figure 3 is a schematic diagram of the installation positions of the boosting plate and the second telescopic rod of the present invention;

[0024] Figure 4Schematic diagram of the installation position of the first sprocket set of the present invention;

[0025] Figure 5 Schematic diagram of the cushion block structure of the present invention;

[0026] Figure 6 Schematic diagram of the backing plate ring structure of the present invention;

[0027] Figure 7 Schematic diagram of the internal structure of the water tank box of the present invention;

[0028] Figure 8 Schematic diagram of the sealing ring structure of the present invention;

[0029] Figure 9 Schematic diagram of the positioning shell structure of the present invention;

[0030] Figure 10 Schematic diagram of the installation position of the filter baffle of the present invention;

[0031] Figure 11 Schematic diagram of the conveying pipe structure of the present invention;

[0032] Figure 12 Schematic diagram of the installation position of the conveying auger of the present invention;

[0033] Figure 13 For the present invention Figure 5 Enlarged schematic diagram at position A.

[0034] Markings in the figure: 1, inspection table; 2, water tank box; 3, limiting shell; 4, slider; 5, positioning shell; 6, top pressure spring; 7, guide shaft; 8, pressing plate; 9, edge strip; 10, backing plate; 11, first telescopic rod; 12, top platform; 13, pressure cylinder; 14, internal hole; 15, vertical side plate; 16, convex block; 17, first sprocket set; 18, cushion block; 19, oil pan; 20, internal plate; 21, support rod; 22, backing plate ring; 23, positioning shaft; 24, sliding sleeve; 25, compression spring; 26, sealing pressing plate; 27, auxiliary plate; 28, roller; 29, guide plate; 30, drive motor; 31, first gear; 32, second sprocket set; 33, second gear; 34, boosting plate; 35, second telescopic rod; 36, positioning rod; 37, sealing ring; 38, air delivery device; 39, control device; 40, blocking column; 41, blocking plate; 42, filter baffle; 43, conveying pipe; 44, rectangular hole; 45, first one-way valve; 46, conveying auger; 47, drive gear; 48, drive rack; 49, pressing spring; 50, filter hole; 51, second one-way valve. Detailed implementation manners

[0035] The following refers to Figures 1 to 13The embodiments of the present invention are described in detail. Those skilled in the art should understand that these embodiments are only used to explain the technical principle of the present invention and are not intended to limit the protection scope of the present invention.

[0036] An airtightness detection device for an automobile oil pan, as Figure 1 , Figure 2 , Figure 9 , Figure 10 shown, includes a detection table 1. A water tank box 2 is arranged at the upper end of the detection table 1. A certain amount of water source is arranged inside the water tank box 2. Restriction shells 3 are respectively and fixedly installed on the inner walls of the front and rear ends of the water tank box 2. Restriction shells 3 are respectively and fixedly installed on the inner walls of the left and right ends of the water tank box 2. Sliders 4 are respectively installed in the four restriction shells 3 in a vertically sliding manner. The four sliders 4 are on the same plane. A positioning shell 5 is fixedly installed among the four sliders 4. The shape of the positioning shell 5 matches that of the oil pan 19. A top pressure spring 6 is fixedly installed at the bottom end of each slider 4. The other end of each top pressure spring 6 is fixedly connected to the bottom end of the restriction shell 3. Under normal conditions, due to the acting force of the four top pressure springs 6, the positioning shell 5 is in the upper position of the water tank box 2. Guide shafts 7 are respectively and fixedly installed at the four corners of the top end of the detection table 1. A pressing plate 8 is slidably connected up and down among the four guide shafts 7. The pressing plate 8 can freely slide up and down along the four guide shafts 7. A detection component is arranged at the bottom end of the pressing plate 8. The positioning shell 5 is arranged with an upper and lower through hole. An edge strip 9 is fixedly installed on the inner wall of the positioning shell 5. A filtering component is arranged inside the water tank box 2;

[0037] When detecting the airtightness of the oil pan 19, first place the detection table 1 in a suitable position. The operator places the oil pan 19 inside the positioning shell 5, making the bottom surface of the oil pan 19 contact the edge strip 9 to play a blocking role for the oil pan 19. Then drive the detection component to gradually move downward until it contacts the top end of the oil pan 19. The oil pan 19 drives the positioning shell 5 and the four sliders 4 to slide downward synchronously. Each top pressure spring 6 is continuously compressed until the oil pan 19 is completely hidden inside the water. Then the corresponding device gradually injects a certain amount of air into the oil pan 19. At this time, the operator observes whether there are bubbles in the water inside the water tank box 2. If there are bubbles, the oil pan 19 is a non-conforming product, and the operator can know the damaged position of the oil pan 19 through the bubbles, which is convenient for the later process personnel to debug the casting equipment. If there are no bubbles, the oil pan 19 is a qualified product. The operator can place the qualified and unqualified oil pans 19 in the designated areas respectively;

[0038] By detecting the sealing performance of the oil pan 19, it is possible to ensure that the engine oil does not leak, thereby reducing environmental pollution, reducing waste of engine oil, improving fuel efficiency, enabling personnel to quickly know the location of damage to the oil pan 19, increasing the service life of the engine, ensuring the safety of the vehicle during driving, avoiding engine damage and wear of other components caused by oil leakage, and saving cost funds.

[0039] As Figure 2 shown, a backing plate 10 is fixedly installed at the top of the inspection table 1. The backing plate 10 is arranged between four guide shafts 7. The water tank box 2 is slidably installed back and forth on the top of the backing plate 10. A support plate is fixedly installed at the front end of the inspection table 1 and is located on the front side of the water tank box 2. A first telescopic rod 11 is fixedly installed on the support plate. The telescopic end of the first telescopic rod 11 is fixedly installed on the water tank box 2. The first telescopic rod 11 is an electric telescopic rod and is connected to a power supply and a controller. A top platform 12 is fixedly installed between the tops of the four guide shafts 7. A pressing plate 8 is arranged below the top platform 12. A pressure cylinder 13 is fixedly installed at the top of the top platform 12. The pressure cylinder 13 is connected to the controller. The telescopic end of the pressure cylinder 13 passes through the top platform 12 and is fixedly connected to the pressing plate 8.

[0040] As Figure 4 、 Figure 5 shown, built-in holes 14 are respectively formed in the pressing plate 8 and the top platform 12. The two built-in holes 14 have the same specifications and are vertically corresponding. Vertical side plates 15 are fixedly installed on the left inner walls of the two built-in holes 14. Vertical side plates 15 are fixedly installed on the right inner walls of the two built-in holes 14. The bottoms of the two vertical side plates 15 are fixedly installed on the inspection table 1. Two bumps 16 are respectively fixedly installed on the upper and lower inner ends of each vertical side plate 15. The first sprocket group 17 includes two first sprockets and a first chain. A first sprocket is rotatably installed between every two corresponding bumps 16. A first chain is connected between the two left first sprockets. A first chain is connected between the two right first sprockets. The two first chains are symmetrically arranged left and right and have the same height. A plurality of cushion blocks 18 are uniformly fixedly installed on the outer end surfaces of each first chain. During use, the oil pan 19 is placed on two cushion blocks 18 on the same plane. A stepping component is arranged at the rear side of the inspection table 1. The first chain is not in contact with the vertical side plate 15, and the cushion block 18 will not contact the vertical side plate 15 during movement. A blocking plate 41 is fixedly installed at the rear end of each vertical side plate 15. The first chain is not in contact with the blocking plate 41;

[0041] Turn on the power supply, and the controller starts the first telescopic rod 11 to push the water tank box 2 backward and slide it to a suitable position. The operator holds the oil pan 19 and places it between two pads 18 on the same plane. Multiple oil pans 19 are evenly arranged up and down. The rear end face of the oil pan 19 is set against the blocking plate 41, which can provide a limiting function for the oil pan 19. At the same time, rotate the two first sprocket groups 17 to drive each oil pan 19 to move downward synchronously until the bottom surface of the lowermost oil pan 19 is flush with the top surface of the water tank box 2. Then, push the lowermost oil pan 19 forward into the positioning shell 5. Next, the controller starts the pressure cylinder 13 to push the pressing plate 8 to gradually slide downward to a suitable position until subsequent detection of the oil pan 19 is carried out. By setting the two first sprocket groups 17 to clamp the oil pan 19 and move downward synchronously, automatic feeding of the oil pan 19 can be realized, and the operator does not need to participate too much, so that the sealing detection and feeding of the oil pan 19 can be carried out, further improving the detection efficiency.

[0042] As Figure 6 , Figure 7 , Figure 8 shown, the detection assembly includes a built-in plate 20. The built-in plate 20 is fixedly installed on the bottom end of the pressing plate 8. A plurality of support rods 21 are fixedly arranged on the bottom end of the built-in plate 20. Each support rod 21 is arranged corresponding to the mounting hole on the oil pan 19 up and down. A pad ring 22 is fixedly arranged among the bottom ends of the plurality of support rods 21. A plurality of positioning shafts 23 are fixedly arranged on the bottom end of the pad ring 22. Each positioning shaft 23 is arranged corresponding to the corresponding support rod 21 up and down. A sliding sleeve 24 that can slide up and down freely is sleeved on each positioning shaft 23. A compression spring 25 is fixedly installed on the top end of each sliding sleeve 24. The compression spring 25 is sleeved on the positioning shaft 23, and the other end of the compression spring 25 is fixedly connected to the pad ring 22. A sealing pressing plate 26 is fixedly connected among the bottom ends of the plurality of sliding sleeves 24. The shape of the sealing pressing plate 26 is the same as that of the oil pan 19. A plurality of blocking columns 40 are fixedly installed at the front end of the positioning shell 5.

[0043] As Figure 2 , Figure 5 , Figure 13 shown, an auxiliary plate 27 is fixedly installed on the front end of each vertical side plate 15. The rear end face of the auxiliary plate 27 is not in contact with the first chain. The top end face of the auxiliary plate 27 is flush with the top end face of the water tank box 2. Each auxiliary plate 27 is provided with a rectangular opening. A plurality of rollers 28 are evenly rotatably installed inside each rectangular opening. The number of rollers 28 is selected according to needs. A guide plate 29 is fixedly installed on the top end of each auxiliary plate 27. The inner end face of the guide plate 29 is flush with the inner face of the first chain.

[0044] As Figure 3 ,Figure 13 As shown, the stepping component includes a driving motor 30. The driving motor 30 is connected to a power supply and a controller. A first gear 31 is coaxially and fixedly installed on the first sprocket at the lower right end. A folding plate is fixedly installed at the rear end of the detection table 1. The second sprocket group 32 includes two second sprockets and a second chain. The second sprocket is rotatably installed on the folding plate. A second sprocket is coaxially and fixedly installed on the first sprocket at the lower left end. The second chain is connected between the two second sprockets. A second gear 33 meshing with the first gear 31 is coaxially and fixedly installed on the second sprocket on the right side. The driving motor 30 is fixedly installed on the rear end of the detection table 1. The rotating shaft of the driving motor 30 is coaxially and fixedly connected to one of the second sprockets. A boosting plate 34 is fixedly installed on the rear end of the detection table 1. A second telescopic rod 35 is fixedly installed on the boosting plate 34. The second telescopic rod 35 is connected to the power supply and the controller. The second telescopic rod 35 is correspondingly arranged with the lowermost oil pan 19;

[0045] After turning on the power supply, the controller starts the first telescopic rod 11 to push the water tank box 2 backward to slide until it contacts the auxiliary plate 27, and the bottom surfaces of the two guide plates 29 contact the top surface of the water tank box 2. The driving motor 30 drives the second sprocket group 32, the second gear 33, and the first gear 31 to rotate synchronously. The two first sprocket groups 17 clamp a plurality of oil pans 19 to move downward synchronously, so that the lowermost oil pan 19 moves to correspond to the second telescopic rod 35. At this time, the bottom surface of the lowermost oil pan 19 is flush with the top surface of the auxiliary plate 27. The controller pauses the rotation of the driving motor 30. Then the controller starts the second telescopic rod 35 to push the lowermost oil pan 19 to slide forward gradually. The bottom surface of the oil pan 19 slides forward gradually along the rollers 28 and the two guide plates 29. The two guide plates 29 can provide a guiding effect for the oil pan 19. The oil pan 19 slides along the bottom surface of the water tank box 2 during the forward movement until the oil pan 19 contacts the blocking column 40. Then the second telescopic rod 35 quickly resets, and the oil pan 19 just falls into the positioning shell 5;

[0046] Then the pressure cylinder 13 pushes the pressing plate 8 to slide downward gradually. The built-in plate 20 drives the support rod 21, the backing ring 22, the positioning shaft 23, the sliding sleeve 24, the compression spring 25, and the sealing pressing plate 26 to slide downward synchronously. The bottom surface of the sealing pressing plate 26 contacts the top surface of the oil pan 19. Due to the continuous downward movement of the pressing plate 8, the oil pan 19 drives the positioning shell 5 and the four sliders 4 to slide downward. Since the pressure of the top pressure spring 6 is less than the pressure of the compression spring 25, the compression spring 25 will be slightly compressed until the sealing pressing plate 26 presses the oil pan 19 to drive the positioning shell 5 to be completely hidden in the water. Then the corresponding device adds a certain amount of air into the oil pan 19. Personnel can quickly find the sealing performance of the oil pan 19 by observing whether there are bubbles in the water inside the water tank box 2;

[0047] After the detection of the oil pan 19 is completed, the pressure cylinder 13 drives the pressing plate 8 to gradually slide upward. The inner plate 20 drives the support rod 21, the backing ring 22, the positioning shaft 23, the sliding sleeve 24, the compression spring 25, and the sealing pressing plate 26 to slide upward synchronously to a proper position. Due to the resilience of each top pressure spring 6, the four sliders 4 drive the positioning shell 5 to return to the initial state. The controller activates the first telescopic rod 11 to drive the water tank 2 to slide forward to a proper position, and then the operator can remove the oil pan 19 from the positioning shell 5.

[0048] This device can automatically detect the airtightness of the oil pan 19, thereby reducing errors and uncertainties caused by human factors and saving labor costs. Due to the use of automatic detection, it can quickly and accurately detect the airtightness of the product, ensuring the reliability and safety of the product.

[0049] Such as Figure 2 、 Figure 6 、 Figure 8 As shown, a positioning rod 36 is coaxially and fixedly installed at the bottom end of each sliding sleeve 24. The positioning rod 36 is arranged below the sealing pressing plate 26. A sealing ring 37 is fixedly installed on the bottom edge side of the sealing pressing plate 26. An air delivery device 38 is fixedly installed on the top of the sealing pressing plate 26. The air delivery device 38 is a suitable existing component, such as an air compressor, etc. The air delivery device 38 is connected to the power supply and the controller. A control device 39 is fixedly installed on the top of the pressing plate 8. The control device 39 is a controller. An air outlet pipe passing through the sealing pressing plate 26 is installed on the air delivery device 38.

[0050] The pressure cylinder 13 pushes the pressing plate 8 to gradually slide downward. The inner plate 20 drives the support rod 21, the backing ring 22, the positioning shaft 23, the sliding sleeve 24, the compression spring 25, and the sealing pressing plate 26 to slide downward synchronously. Each positioning rod 36 is smoothly inserted into the installation hole of the corresponding oil pan 19, realizing the quick positioning of the oil pan 19 until the sealing ring 37 is completely in close contact with the top surface of the oil pan 19, further improving the airtightness and preventing external water from entering the interior of the oil pan 19. After the positioning shell 5 is completely hidden in the water, the air delivery device 38 injects a certain amount of air into the interior of the oil pan 19 through the air outlet pipe, and the operator observes whether there are bubbles in the water inside the water tank 2 to detect the airtightness of the oil pan 19.

[0051] Such as Figure 10 、 Figure 11 、 Figure 12As shown, the filtering component includes a filtering baffle 42. The filtering baffle 42 is a solid structure and is fixedly installed on the inner wall of the water tank box 2 and is arranged at the lower ends of the four limiting shells 3. An isolation rod is fixedly installed at the top end of the filtering baffle 42. After the positioning shell 5 is hidden in the water, it contacts the isolation rod. When the oil pan 19 leaks air, air bubbles emerge outward through the space between the oil pan 19 and the filtering baffle 42, and thus the sealing performance of the oil pan 19 can be known. Two delivery pipes 43 are fixedly installed at the bottom end of the filtering baffle 42. The left and right ends of the delivery pipes 43 are in a closed state. A rectangular hole 44 communicating with each delivery pipe 43 is formed in the filtering baffle 42. A first one-way valve 45 is fixedly installed inside the right end of each delivery pipe 43, thus dividing the delivery pipe 43 into two parts. A delivery auger 46 is rotatably installed inside each delivery pipe 43. The right end of the delivery auger 46 is not in contact with the first one-way valve 45. The blades of the delivery auger 46 are in close contact with the inner wall of the delivery pipe 43, and a sealing strip is fixedly installed at the outer end of the blade, thereby improving the sealing performance with the inner wall of the delivery pipe 43. A driving gear 47 coaxially and fixedly connected to the delivery auger 46 is rotatably installed at the left end of each delivery pipe 43. A driving rack 48 that slides up and down is penetrated through the left end of the filtering baffle 42. Each driving rack 48 is meshed with the corresponding driving gear 47. A cross bar is fixedly connected between the top ends of the two driving racks 48. A pressing spring 49 is fixedly installed on the cross bar. The lower end of the pressing spring 49 is fixedly connected to the filtering baffle 42. A filtering hole 50 is arranged on the right side of each delivery pipe 43. A closing cover is threadedly installed at the right end of the delivery pipe 43. When cleaning impurities, the closing cover is removed to clean the impurities on the right side of the delivery pipe 43. A second one-way valve 51 is fixedly installed on the filtering baffle 42;

[0052] Since there are impurities on the outside of the cast oil pan 19, the water will become turbid during the sealing test of the oil pan 19 in water, thus affecting the test effect;

[0053] During use, the pressure cylinder 13 pushes the pressure plate 8 to gradually slide downward, and the oil pan 19 drives the positioning housing 5 and the four sliders 4 to slide downward synchronously. When the sealing pressure plate 26 presses the oil pan 19 with the positioning housing 5 into the water in the water tank 2, at this time, the positioning housing 5 presses the cross bar and the two driving racks 48 to slide downward, and the pressing spring 49 is gradually compressed. The two driving racks 48 engage with the corresponding driving gears 47 and the conveying auger 46 to rotate. The external sewage is gradually conveyed to the right by the conveying auger 46 through the rectangular hole 44. Due to the continuous extrusion of water, the first one-way valve 45 is in an open state, and the sewage gradually enters the right side of the conveying pipe 43. Due to the continuous rotation of the conveying auger 46, the filter holes 50 can filter the impurities in the sewage, and the filtered water passes through the filter holes 50 and enters the cavity at the lower end of the filter baffle 42. Due to the continuous conveying of sewage by the conveying auger 46, the water at the lower end of the filter baffle 42 will be mutually extruded, and the filtered water is gradually sprayed upward through the second one-way valve 51 to the upper end of the filter baffle 42, thus forming a continuous cycle filtration of sewage, improving the cleanliness of sewage, and facilitating personnel to observe the sealing performance of the oil pan 19;

[0054] When the sealing pressure plate 26 gradually slides upward, the rebounding force of the pressing spring 49 pushes the cross bar and the two driving racks 48 to slide upward, and the two conveying augers 46 rotate in the reverse direction. At this time, the first one-way valve 45 and the second one-way valve 51 are in a closed state, and the sewage is not cleaned cyclically. When cleaning the impurities, just remove the closed cover and clean the impurities on the right side of the conveying pipe 43.

[0055] It should be noted that in the description of the present invention, the terms indicating directions or positional relationships such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings. This is only for convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0056] In addition, it should also be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed installation, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0057] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easily understood by those skilled in the art that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the present invention.

Claims

1. An automobile oil pan sealing detection device, comprising a detection table (1), characterized in that, At the upper end of the detection table (1), there is a water tank box (2). Inside the water tank box (2), four limiting shells (3) are fixedly installed. Inside the four limiting shells (3), sliders (4) are respectively installed to slide up and down. A positioning shell (5) is fixedly installed among the four sliders (4). At the bottom end of each slider (4), a pressing spring (6) is fixedly installed. At the four corners of the detection table (1), guide shafts (7) are respectively fixedly installed. A pressing plate (8) is installed to slide up and down among the four guide shafts (7). At the bottom end of the pressing plate (8), a detection component is provided. Inside the positioning shell (5), an edge strip (9) is fixedly installed. Inside the water tank box (2), a filtering component is provided; At the top end of the detection table (1), a cushion plate (10) is fixedly installed. At the front end of the cushion plate (10), a first telescopic rod (11) is provided. At the top ends of the four guide shafts (7), a top platform (12) is fixedly installed together. At the top end of the top platform (12), a pressure cylinder (13) is fixedly installed. The telescopic end of the pressure cylinder (13) is fixedly connected to the pressing plate (8); Built-in holes (14) are respectively formed in the pressing plate (8) and the top platform (12). Vertical side plates (15) are respectively fixedly installed on the left side and the right side of the two built-in holes (14). Two bumps (16) are fixedly installed on each vertical side plate (15). A first sprocket group (17) is arranged between the two bumps (16) on the same side. A plurality of cushion blocks (18) are evenly arranged on each first sprocket group (17). A stepping component is arranged at the rear side of the detection table (1). A plurality of oil pans (19) are arranged between the two first sprocket groups (17); The stepping component includes a driving motor (30). At the lower end of the first sprocket group (17) on the right side, a first gear (31) is provided. At the lower end of the first sprocket group (17) on the left side, a second sprocket group (32) is provided. A second gear (33) meshing with the first gear (31) is arranged on the second sprocket group (32). The driving motor (30) is installed on the second sprocket group (32). At the rear end of the detection table (1), an assisting plate (34) is fixedly installed. A second telescopic rod (35) is installed on the assisting plate (34); The filtering component includes a filtering baffle (42). The filtering baffle (42) is fixedly installed inside the water tank box (2). An isolation rod is fixedly installed at the top end of the filtering baffle (42). After the positioning shell (5) is hidden in the water, it contacts the isolation rod. Two conveying pipes (43) are fixedly installed on the bottom end of the filtering baffle (42) by fixing rods. A closing cover is threadedly installed at the right end of the conveying pipe (43). A rectangular hole (44) communicating with each conveying pipe (43) is formed on the filtering baffle (42). A first one-way valve (45) is fixedly installed at one end of each conveying pipe (43). A conveying auger (46) is rotatably installed inside each conveying pipe (43). A driving gear (47) is coaxially and fixedly installed at one end of each conveying auger (46). A driving rack (48) meshing with each driving gear (47) is slidably installed up and down at one end of the filtering baffle (42). A pressing spring (49) is arranged on the driving rack (48). A filtering hole (50) is arranged on one side of each conveying pipe (43). A second one-way valve (51) is arranged on the filtering baffle (42).

2. The sealing performance detection device for an automobile oil pan according to claim 1, characterized in that, The detection component includes a built-in plate (20). The built-in plate (20) is fixedly installed at the bottom end of the pressing plate (8). A plurality of support rods (21) are fixedly arranged at the bottom end of the built-in plate (20). A backing plate ring (22) is jointly arranged among the bottom ends of the plurality of support rods (21). A plurality of positioning shafts (23) are fixedly arranged at the bottom end of the backing plate ring (22). A sliding sleeve (24) is sleeved on each positioning shaft (23). A compression spring (25) is arranged at the upper end of each sliding sleeve (24). A sealing pressing plate (26) is jointly arranged among the bottom ends of the plurality of sliding sleeves (24).

3. The sealing performance detection device for the oil pan of an automobile according to claim 1, wherein An auxiliary plate (27) is fixedly installed at the front end of each vertical side plate (15). A plurality of rollers (28) are evenly rotatably installed on each auxiliary plate (27). A guide plate (29) is fixedly installed at the top end of each auxiliary plate (27).

4. An oil pan sealing performance detection device for an automobile according to claim 2, characterized in that, A positioning rod (36) is fixedly installed at the bottom end of each sliding sleeve (24). A sealing ring (37) is fixedly installed at the bottom end of the sealing pressing plate (26). An air conveying device (38) is fixedly installed at the top end of the sealing pressing plate (26). A control device (39) is fixedly installed at the top end of the pressing plate (8).

5. The sealing performance detection device for the oil pan of an automobile according to claim 1, wherein A blocking column (40) is fixedly installed at the front end of the positioning shell (5). A blocking plate (41) is fixedly installed at the rear end of each first sprocket group (17).

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