Engine leakage testing device

Abstract

The utility model discloses an engine leakage testing device which comprises a device table, and a mounting frame is fixedly mounted at the top end of the device table. When the engine leakage testing device is used, after an engine oil pan assembly is arranged on the first jacking column and the second jacking column, the rotating handle can be rotated on the right side of the operation table, the rotating handle can drive the two-way lead screw to rotate while rotating, the two-way lead screw can drive the threaded sleeves in threaded connection with the two sides of the outside to move inwards at the same time while rotating, and the engine leakage testing device is used for testing leakage of the engine. The two sets of clamping plates can be driven to move inwards at the same time, after the ejector rods abut against the two sides of the engine oil pan assembly, the engine oil pan assembly can be rapidly clamped and fixed, oil pan workpieces with different lengths can be clamped and fixed through the arranged bidirectional lead screw and the arranged threaded sleeve, and the clamping efficiency is improved. The clamping assembly does not need to be frequently replaced, and the problem that clamping and fixing are inconvenient before leakage testing of the engine oil pan assembly is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts production and processing, in particular to an engine leak testing device. Background Art

[0002] The automobile engine is a machine that provides power for the automobile. As an important component of the automobile, it affects the automobile's power, economy and environmental protection. The engine oil pan is a component on the engine used to store lubricating oil. It is generally installed at the bottom of the engine. During the production and processing of the engine oil pan assembly, in order to ensure the qualification of the oil pan assembly, a leak test device is required to detect leaks in the engine oil pan assembly.

[0003] However, when the engine leak test device is used to test engine components for leaks, in the process of clamping and fixing different engine oil pan components before leak testing, different fixtures need to be replaced back and forth to clamp and fix some engine oil pan components of different lengths. The operation and use process is relatively cumbersome, time-consuming and labor-intensive, and has shortcomings, and is not convenient for clamping and fixing the engine oil pan components before leak testing.

[0004] Now, a novel engine leak testing device is proposed to solve the above-mentioned shortcomings. Utility Model Content

[0005] The utility model aims to provide an engine leak test device to solve the problem inconvenient to clamp and fix the engine oil pan assembly before leak test proposed in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an engine leak test device, comprising a device table, a mounting frame is fixedly mounted on the top of the device table, a movable seat is arranged inside the mounting frame, a pressing plate is arranged at the bottom of the movable seat, and a clamping structure for clamping and fixing the engine component during the test is arranged at the middle position of the top of the device table;

[0007] The clamping structure includes an operating table, a clamping plate, a first push column, a second push column, a push rod, a threaded mouth, a threaded head, a bidirectional lead screw, a threaded sleeve and a turning handle. An operating table is installed and fixed at the middle position of the top of the device table, clamping plates are respectively provided on both sides of the top of the operating table, and push rods are respectively fixed at both ends of the top of the left side of the clamping plate, second push columns are respectively provided at both ends of the left side of the top of the operating table, and first push columns are respectively provided at both ends of the right side of the top of the operating table, the interior of the operating table is laterally movably connected with a bidirectional lead screw, and threaded sleeves are respectively provided on both sides of the outside of the bidirectional lead screw, and the right side of the bidirectional lead screw passes through the right side of the operating table and is fixed with a turning handle.

[0008] Preferably, threaded heads are fixed to the bottom ends of the first top column and the second top column respectively, threaded openings are opened inside both sides of the top end of the operating table respectively, and the top end of the threaded sleeve passes through the top end of the operating table and is fixedly connected to the bottom end of the clamping plate.

[0009] Preferably, extension rods are fixed on both sides of the top of the pressure plate, fixed cylinders are fixed on both sides of the top of the movable seat, and compression springs are arranged inside the fixed cylinders. The top of the extension rod passes through the interior of the movable seat, and a fixing ring is fixed at the middle position outside the extension rod.

[0010] Preferably, the top end of the extension rod passes through the interior of the compression spring and the top end of the fixed tube and fixes a limiting plate, the top end of the compression spring is fixedly connected to the top end of the interior of the fixed tube, and the bottom end of the compression spring is fixedly connected to the top end of the fixed ring.

[0011] Preferably, gooseneck tubes are respectively provided on both sides of the mounting frame, and an LED lighting lamp is fixed to the left side of the gooseneck tube, a fixing frame is fixed to the top of the gooseneck tube, and the right side of the fixing frame is fixed to the right side of the mounting frame by bolts.

[0012] Preferably, cylinders are respectively installed and fixed on both sides of the top of the mounting frame, and the output end of the cylinder passes through the interior of the top of the mounting frame and is fixedly connected to the top of the movable seat, a sealing gasket is fixed to the bottom end of the pressure plate, a connecting pipe is vertically fixed to the top of the pressure plate, and a pressure gauge and a one-way valve are respectively installed on the connecting pipe, a connecting hose is fixedly installed on the top of the connecting pipe, an air pump is installed on the right side of the mounting frame, the right side of the connecting hose is fixed to the output end of the air pump, and the bottom end of the connecting pipe passes through the interior of the pressure plate and the sealing gasket respectively.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the engine leak test device not only facilitates the clamping and fixing of the engine oil pan assembly before leak test, facilitates the safety test of the engine oil pan assembly, but also facilitates the external inspection of the engine oil pan assembly;

[0014] (1) The device is provided with an operating table, a clamping plate, a first push column, a second push column, a push rod, a threaded opening, a threaded head, a bidirectional lead screw, a threaded sleeve and a turning handle. When the device is used to test the engine oil pan assembly for leaks, the engine oil pan assembly is placed on the first push column and the second push column, and then the turning handle can be rotated on the right side of the operating table. The turning handle can drive the bidirectional lead screw to rotate. The bidirectional lead screw can drive the threaded sleeves connected to the two sides of the outside to move inward at the same time, and can also drive the two sets of clamping plates to move inward at the same time. After the push rod is pressed against the two sides of the engine oil pan assembly, the engine oil pan assembly can be quickly clamped and fixed. The bidirectional lead screw and the threaded sleeve can be used to clamp and fix some oil pan workpieces of different lengths. There is no need to frequently replace the clamping assembly back and forth, which is convenient for clamping and fixing the engine oil pan assembly before leak testing. At the same time, the threaded heads at the bottom ends of the first push column and the second push column can be rotated up and down inside the threaded opening respectively, and the positions of the first push column and the second push column can be finely adjusted upward.

[0015] (2) By providing a pressure plate, a movable seat, a stretching rod, a sealing gasket, a fixed cylinder, a limit plate, a compression spring and a fixed ring, when the engine oil pan assembly is fixed and tested, the control cylinder is started to push the movable seat and the pressure plate downward, and when the sealing gasket at the bottom of the pressure plate is pressed against the top of the engine oil pan assembly, the stretching rods arranged on both sides of the top of the pressure plate will move upward during the downward movement of the movable seat, and compress the compression spring inside the fixed cylinder, and the elastic closed structure will reduce the damage to the engine oil pan assembly caused by the hard contact collision between the leak test assembly and the engine oil pan assembly when the engine oil pan assembly is leak tested, so as to facilitate the safe testing of the engine oil pan assembly;

[0016] (3) By providing a mounting frame, an LED lighting lamp, a gooseneck tube and a fixing frame, when the device is used to test the engine oil pan assembly for leaks, the pressure plate is moved down to the top of the engine oil pan assembly to seal the interior of the engine oil pan assembly, and the air pump is controlled to inject air into the interior of the engine oil pan assembly using a connecting hose and a connecting pipe. After the air pump is turned off, the pressure value on the pressure gauge is recorded, and the engine oil pan assembly is tested for leaks by observing the changes in the displayed value of the pressure gauge. During the detection process, the LED lighting lamp can be connected to an external power supply and lit up. The provided LED lighting lamp can be used to provide auxiliary lighting for the outside of the engine oil pan assembly, and the shell of the engine oil pan assembly can be inspected for cracks and defects. At the same time, the irradiation position of the LED lighting lamp can be adjusted by bending the gooseneck tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model;

[0018] Figure 2 This is a schematic diagram of the enlarged structure of a partial cross-section of the operating table of the utility model;

[0019] Figure 3 For this utility model Figure 1 A is an enlarged structural diagram;

[0020] Figure 4 It is a front view enlarged structural schematic diagram of the gooseneck tube of the utility model.

[0021] In the figure: 1. installation table; 2. operating table; 3. mounting frame; 4. clamp; 5. pressure plate; 6. movable seat; 7. cylinder; 8. pressure gauge; 9. connecting pipe; 10. one-way valve; 11. connecting hose; 12. extension rod; 13. sealing gasket; 14. air pump; 15. first push column; 16. second push column; 17. push rod; 18. threaded mouth; 19. threaded head; 20. two-way screw; 21. threaded sleeve; 22. turning handle; 23. fixing cylinder; 24. limit plate; 25. compression spring; 26. fixing ring; 27. LED lighting; 28. gooseneck tube; 29. ​​fixing frame. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example 1: Please refer to Figure 1-4 , an engine leak test device, comprising a device platform 1, a mounting frame 3 is fixedly mounted on the top of the device platform 1, and a movable seat 6 is arranged inside the mounting frame 3, a pressing plate 5 is arranged at the bottom end of the movable seat 6, cylinders 7 are fixedly mounted on both sides of the top of the mounting frame 3, and the output end of the cylinder 7 passes through the interior of the top of the mounting frame 3 and is fixedly connected to the top of the movable seat 6, a sealing gasket 13 is fixed at the bottom end of the pressing plate 5, a connecting pipe 9 is vertically fixed to the top of the pressing plate 5, and a pressure gauge 8 and a one-way valve 10 are respectively installed on the connecting pipe 9, a connecting hose 11 is fixedly mounted on the top of the connecting pipe 9, an air pump 14 is installed on the right side of the mounting frame 3, the right side of the connecting hose 11 is fixedly mounted to the output end of the air pump 14, the bottom end of the connecting pipe 9 passes through the inside of the pressing plate 5 and the sealing gasket 13 respectively, and a clamping structure for clamping and fixing the engine component during testing is arranged at the middle position of the top of the device platform 1;

[0024] The clamping structure includes an operating table 2, a clamping plate 4, a first top column 15, a second top column 16, a top rod 17, a threaded mouth 18, a threaded head 19, a bidirectional lead screw 20, a threaded sleeve 21 and a rotating handle 22. The operating table 2 is fixedly mounted at the middle position of the top of the device table 1. Clamping plates 4 are respectively arranged on both sides of the top of the operating table 2, and the two ends of the top of the left side of the clamping plate 4 are respectively fixed with the top rod 17. The two ends of the left side of the top of the operating table 2 are respectively arranged with the second top column 16, and the two ends of the right side of the top of the operating table 2 are respectively arranged with the first top column 15. The inside of the operating table 2 is laterally movably connected with a bidirectional lead screw 20, and the two sides of the outside of the bidirectional lead screw 20 are respectively arranged with threaded sleeves 21. The right side of the bidirectional lead screw 20 passes through the right side of the operating table 2 and is fixed with a rotating handle 22.

[0025] The bottom ends of the first top column 15 and the second top column 16 are respectively fixed with thread heads 19, and the insides of both sides of the top of the operating table 2 are respectively provided with threaded openings 18, and the top end of the threaded sleeve 21 passes through the top of the operating table 2 and is fixedly connected to the bottom end of the clamping plate 4;

[0026] Specifically, Figure 1 and Figure 2 As shown, when testing the engine oil pan assembly for leaks, after placing the engine oil pan assembly on the first top column 15 and the second top column 16, the turning handle 22 can be rotated on the right side of the operating table 2. The turning handle 22 can drive the bidirectional lead screw 20 to rotate while rotating. The bidirectional lead screw 20 can drive the threaded sleeves 21 connected by threads on both sides of the outside to move inward at the same time, and can also drive the two sets of clamps 4 to move inward at the same time. By pressing the push rod 17 against the two sides of the engine oil pan assembly, the engine oil pan assembly can be quickly clamped and fixed. The bidirectional lead screw 20 and the threaded sleeve 21 can be used to clamp and fix some oil pan workpieces of different lengths without frequently replacing the clamping assembly back and forth.

[0027] Embodiment 2: A stretching rod 12 is fixed to both sides of the top of the pressing plate 5, a fixing cylinder 23 is fixed to both sides of the top of the movable seat 6, and a compression spring 25 is arranged inside the fixing cylinder 23. The top of the stretching rod 12 passes through the inside of the movable seat 6, and a fixing ring 26 is fixed at the middle position outside the stretching rod 12. The top of the stretching rod 12 passes through the inside of the compression spring 25 and the top of the fixing cylinder 23 and is fixed with a limiting plate 24. The top of the compression spring 25 is fixedly connected to the top of the inside of the fixing cylinder 23, and the bottom end of the compression spring 25 is fixedly connected to the top of the fixing ring 26.

[0028] Specifically, Figure 1 and Figure 3As shown, the control cylinder 7 is started to push the movable seat 6 and the pressure plate 5 downward. When the sealing gasket 13 at the bottom end of the pressure plate 5 is pressed against the top of the engine oil pan assembly, the extension rods 12 arranged on both sides of the top of the pressure plate 5 will move upward during the downward movement of the movable seat 6, and compress the compression spring 25 inside the fixed cylinder 23. The elastic closed structure can reduce the damage to the engine oil pan assembly caused by the hard contact collision between the leak test assembly and the engine oil pan assembly when the engine oil pan assembly is leak tested.

[0029] Embodiment 3: Gooseneck tubes 28 are respectively provided on both sides of the interior of the mounting frame 3, and an LED lighting lamp 27 is fixed to the left side of the gooseneck tube 28, and a fixing frame 29 is fixed to the top of the gooseneck tube 28, and the right side of the fixing frame 29 is fixed to the right side of the interior of the mounting frame 3 by bolts;

[0030] Specifically, Figure 1 and Figure 4 As shown, during the inspection process, the LED lighting lamp 27 can be connected to an external power source and lit up. The set LED lighting lamp 27 can be used to provide auxiliary lighting for the outside of the engine oil pan assembly, and the shell of the engine oil pan assembly can be inspected for cracks and defects. At the same time, the irradiation position of the LED lighting lamp 27 can be adjusted by bending the gooseneck tube 28.

[0031] Working principle: When the utility model is in use, when testing the engine oil pan assembly for leaks, after placing the engine oil pan assembly on the first top column 15 and the second top column 16, the handle 22 can be rotated on the right side of the operating table 2, and the rotation of the handle 22 can drive the two-way screw 20 to rotate. When the two-way screw 20 rotates, the threaded sleeves 21 connected by threads on both sides of the outside can be driven to move inward at the same time, and the two sets of clamping plates 4 can be driven to move inward at the same time. After the push rod 17 is pressed against the two sides of the engine oil pan assembly, the engine oil pan assembly can be quickly clamped and fixed. The two-way screw 20 and the threaded sleeve 21 provided can clamp and fix some oil pan workpieces of different lengths without frequently replacing the clamping assembly back and forth. When testing after fixing, the control cylinder 7 is started to push the movable seat 6 and the pressure plate 5 downward. When the sealing gasket 13 at the bottom end of the pressure plate 5 is pressed against the top of the engine oil pan assembly, the extension rods 12 provided on both sides of the top of the pressure plate 5 will During the downward movement of the movable seat 6, it moves upward and compresses the compression spring 25 inside the fixed cylinder 23. The elastic closed structure reduces the damage to the engine oil pan assembly caused by the hard contact collision between the leak test assembly and the engine oil pan assembly when the engine oil pan assembly is leak tested. After the pressure plate 5 is moved down to the top of the engine oil pan assembly to seal the interior of the engine oil pan assembly, the air pump 14 is controlled to inject air into the interior of the engine oil pan assembly using the connecting hose 11 and the connecting pipe 9. After turning off the air pump 14, the pressure value on the pressure gauge 8 is recorded, and the engine oil pan assembly is leak tested by observing the changes in the displayed value of the pressure gauge 8. During the detection process, the LED lighting lamp 27 can be connected to an external power supply and lit. The set LED lighting lamp 27 can be used to provide auxiliary lighting for the outside of the engine oil pan assembly, and the shell of the outside of the engine oil pan assembly can be inspected for cracks and defects.

[0032] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An engine leak test device, comprising a device platform (1), characterized in that: A mounting frame (3) is fixedly mounted on the top of the device platform (1), and a movable seat (6) is arranged inside the mounting frame (3), a pressing plate (5) is arranged at the bottom of the movable seat (6), and a clamping structure for clamping and fixing the engine component during testing is arranged at the middle position of the top of the device platform (1); The clamping structure comprises an operating table (2), a clamping plate (4), a first top column (15), a second top column (16), a top rod (17), a threaded opening (18), a threaded head (19), a bidirectional lead screw (20), a threaded sleeve (21) and a rotating handle (22). The operating table (2) is fixedly mounted at the middle position of the top of the device table (1). Clamping plates (4) are respectively arranged on both sides of the top of the operating table (2), and the two ends of the top of the left side of the clamping plate (4) are respectively fixed with a top rod (17). The two ends of the left side of the top of the operating table (2) are respectively arranged with a second top column (16), and the two ends of the right side of the top of the operating table (2) are respectively arranged with a first top column (15). The inside of the operating table (2) is laterally movably connected with a bidirectional lead screw (20), and the two sides of the outside of the bidirectional lead screw (20) are respectively arranged with threaded sleeves (21). The right side of the bidirectional lead screw (20) passes through the right side of the operating table (2) and is fixed with a rotating handle (22).

2. An engine leak test device according to claim 1, characterized in that: The bottom ends of the first top column (15) and the second top column (16) are respectively fixed with threaded heads (19), the insides of the two sides of the top end of the operating table (2) are respectively provided with threaded openings (18), and the top end of the threaded sleeve (21) passes through the top end of the operating table (2) and is fixedly connected to the bottom end of the clamping plate (4).

3. An engine leak test device according to claim 1, characterized in that: Extension rods (12) are fixed on both sides of the top of the pressure plate (5), and fixed cylinders (23) are fixed on both sides of the top of the movable seat (6). A compression spring (25) is arranged inside the fixed cylinder (23). The top of the extension rod (12) passes through the inside of the movable seat (6), and a fixing ring (26) is fixed at the middle position outside the extension rod (12).

4. An engine leak test device according to claim 3, characterized in that: The top end of the extension rod (12) passes through the interior of the compression spring (25) and the top end of the fixed cylinder (23) and is fixed to the limiting plate (24); the top end of the compression spring (25) is fixedly connected to the top end of the interior of the fixed cylinder (23); and the bottom end of the compression spring (25) is fixedly connected to the top end of the fixed ring (26).

5. An engine leak test device according to claim 1, characterized in that: Gooseneck tubes (28) are respectively arranged on both sides of the interior of the mounting frame (3), and an LED lighting lamp (27) is fixed on the left side of the gooseneck tube (28). A fixing frame (29) is fixed on the top of the gooseneck tube (28), and the right side of the fixing frame (29) is fixed to the right side of the interior of the mounting frame (3) by means of bolts.

6. An engine leak test device according to claim 1, characterized in that: Cylinders (7) are fixedly mounted on both sides of the top of the mounting frame (3), and the output end of the cylinder (7) passes through the interior of the top of the mounting frame (3) and is fixedly connected to the top of the movable seat (6). A sealing gasket (13) is fixedly mounted on the bottom end of the pressing plate (5). A connecting pipe (9) is vertically fixedly mounted on the top of the pressing plate (5), and a pressure gauge (8) and a one-way valve (10) are respectively mounted on the connecting pipe (9). A connecting hose (11) is fixedly mounted on the top of the connecting pipe (9). An air pump (14) is mounted on the right side of the mounting frame (3), and the right side of the connecting hose (11) is fixedly mounted to the output end of the air pump (14). The bottom end of the connecting pipe (9) passes through the interior of the pressing plate (5) and the sealing gasket (13).

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