A mobile device for detecting engine fuel injection leakage

Abstract

The present invention discloses a mobile device for detecting the amount of leakage of engine fuel injection, comprising a mobile vehicle, a fuel tank provided on the mobile vehicle, a fuel pump device connected to the fuel tank provided on the mobile vehicle, a fuel injection pipe provided at the output end of the fuel pump device, a relief valve provided on the fuel injection pipe, a return oil pipe connected to the fuel tank provided on the relief valve, and a placement box for positioning the fuel injection pipe provided on the bottom plate of the mobile vehicle. The mobile device for detecting the amount of leakage of engine fuel injection of the present invention belongs to the technical field of engine detection. The fuel tank can move with the mobile vehicle, and the mobile vehicle moves to the front of the engine where the amount of leakage of unloading oil needs to be checked. Then, the fuel injection pipe is connected to the fuel injection hook of the engine, and the pressure of the fuel injection is controlled by the relief valve, so as to check the quality of the fuel injection hook of the engine, and timely detect the fuel injection position of the engine spray hook, thereby saving a lot of time, being flexible and fast, improving efficiency, being safe and reliable, and reducing the labor intensity of workers.

Description

Technical Field

[0001] The invention relates to engine detection technology, and more particularly to a mobile device for detecting the leakage amount of engine fuel injection. Background Art

[0002] How to detect the qualified injection position of the engine spray hook? The conventional disassembly method is to run the engine to a fixed position, connect the measuring device, and pass the test. If it is qualified, it will flow to the next process. This detection method using a fixed beat and fixed detection position through the production line is often restricted by the bottleneck of the production line process. In particular, if a certain equipment in the production line fails, the engine cannot flow to the detection position of the spray hook, and it cannot be detected in time and effectively, affecting the progress of the spray hook quality detection. It is also impossible to eliminate the problem of the engine spray hook injection in the first place, increasing the workload of workers' repetitive work, increasing corporate cost expenditures, causing engine quality accidents, and low work efficiency. Summary of the invention

[0003] The technical problem to be solved by the present invention is to address the above-mentioned deficiencies of the prior art. The purpose of the present invention is to provide a mobile device for detecting the leakage of engine fuel injection, which has firm clamping and is easy to assemble and disassemble.

[0004] To achieve the above-mentioned purpose, the present invention provides a mobile device for detecting the amount of engine fuel injection leakage, including a mobile vehicle, a fuel tank is provided on the mobile vehicle, an oil pump device connected to the fuel tank is provided on the mobile vehicle, a fuel injection pipe is provided at the output end of the oil pump device, an overflow valve is provided on the fuel injection pipe, a return oil pipe connected to the fuel tank is provided on the overflow valve, and a placement box for positioning the fuel injection pipe is provided on the bottom plate of the mobile vehicle.

[0005] Furthermore, the oil pump device includes a low-pressure gear oil pump provided on the bottom plate of the mobile vehicle and an explosion-proof motor driving the low-pressure gear oil pump.

[0006] Furthermore, an oil delivery pipe connected to the inlet of the low-pressure gear oil pump is provided at the bottom of the oil tank, and a filter structure is provided at the inlet of the oil delivery pipe.

[0007] Furthermore, the overflow valve is a plate-type overflow valve, and the oil return port of the plate-type overflow valve is connected to the top of the oil tank through an oil return pipe.

[0008] As a further improvement, a mounting plate supporting the overflow valve is vertically provided on the outer wall at one end of the oil tank, and a connecting vertical plate connected to the outer wall of the oil tank is provided at the inner end of the mounting plate.

[0009] Furthermore, a clearance hole is provided on the mounting plate, and slide grooves extending radially outward are provided on both sides of the hole wall of the clearance hole, and a clamping block adapted to the outer wall of the output pipe at the upper end of the low-pressure gear oil pump is slidably provided in the slide groove, and an extrusion spring connected to the outer side surface of the clamping block is provided in the slide groove.

[0010] Beneficial Effects

[0011] Compared with the prior art, the mobile device for detecting the amount of engine fuel injection leakage of the present invention has the following beneficial effects: the mobile device for detecting the amount of engine fuel injection leakage of the present invention, the fuel tank can move with the mobile vehicle, the mobile vehicle moves to the front of the engine where the oil unloading leakage needs to be checked, and then the fuel injection pipe is connected to the fuel injection hook of the engine, and the pressure of the fuel injection is controlled by the overflow valve, so as to check the quality of the fuel injection hook of the engine, and the fuel injection position of the engine spray hook can be timely detected by means of a trolley, which saves a lot of time, is flexible and fast, improves efficiency, is safe and reliable, and reduces the labor intensity of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a structural cross-sectional view of a mobile device for detecting the amount of fuel injection leakage of an engine according to the present invention;

[0013] Figure 2 It is an enlarged bottom view of the structure of the mounting plate in the present invention.

[0014] In the figure: 1. Mobile vehicle; 2. Oil tank; 3. Oil pump device; 4. Oil injection pipe; 5. Overflow valve; 6. Oil return pipe; 7. Placement box; 8. Low-pressure gear oil pump; 9. Explosion-proof motor; 10. Oil pipeline; 11. Filter structure; 12. Oil unloading hole; 13. Mounting plate; 14. Connecting vertical plate; 15. Make way hole; 16. Slide; 17. Clamp block; 18. Arc positioning groove; 19. Extrusion spring; 20. Ball valve. DETAILED DESCRIPTION

[0015] The specific implementation modes of the present invention are described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific implementation modes.

[0016] The specific implementation of the present invention is as follows: Figure 1-2As shown, a mobile device for detecting the amount of leakage of engine fuel injection comprises a mobile vehicle 1, on which is provided a fuel tank 2, at the bottom of which is provided an oil discharge hole 12, on which is provided an oil pump device 3 connected to the fuel tank 2, at the output end of the oil pump device 3 is provided a fuel injection pipe 4, on which is provided an overflow valve 5, on which is provided an oil return pipe 6 connected to the fuel tank 2, on which is provided an overflow valve 5, and on which is provided an oil return pipe 6 connected to the fuel tank 2, a placement box 7 for positioning the fuel injection pipe 4 is provided on the bottom plate of the mobile vehicle 1, the placement box 7 can accommodate the fuel injection pipe 4 and the fuel pipe joint of the fuel injection pipe 4 to prevent the fuel pipe joint from being bumped, and a ball valve 20 is provided on the fuel injection pipe 4.

[0017] In the mobile device for detecting the amount of oil leakage in the engine, the oil tank 2 can move with the mobile vehicle 1, and the mobile vehicle 1 moves to the front of the engine where the oil unloading leakage needs to be checked, and then the oil injection pipe 4 is connected to the oil injection hook of the engine, and the pressure of the oil injection is controlled by the overflow valve 5, so as to check the quality of the oil injection hook of the engine, and the oil injection position of the engine injection hook can be timely detected by means of a trolley, which saves a lot of time, is flexible and fast, improves efficiency, is safe and reliable, and reduces the labor intensity of workers.

[0018] In this embodiment, the oil pump device 3 includes a low-pressure gear oil pump 8 provided on the bottom plate of the mobile vehicle 1 and an explosion-proof motor 9 driving the low-pressure gear oil pump 8. The explosion-proof motor 9 drives the low-pressure gear oil pump 8 to work, and the low-pressure gear oil pump 8 pressurizes the oil in the oil tank 2.

[0019] In this embodiment, an oil pipe 10 connected to the inlet of the low-pressure gear oil pump 8 is provided at the bottom of the oil tank 2, and a filter structure 11 is provided at the inlet of the oil pipe 10. The filter structure 11 plays a filtering role to prevent impurities in the oil tank 2 from entering the engine fuel injection hook to avoid clogging the injection hook.

[0020] In this embodiment, the relief valve 5 is a plate-type relief valve, the oil return port of the plate-type relief valve is connected to the top of the oil tank 2 through the oil return pipe 6, and the plate-type relief valve is connected to the output pipe of the low-pressure gear oil pump 8.

[0021] In this embodiment, a mounting plate 13 supporting the overflow valve 5 is vertically provided on the outer wall at one end of the oil tank 2, and a connecting vertical plate 14 connected to the outer wall of the oil tank 2 is provided at the inner end of the mounting plate 13. A reinforcing rib is provided between the mounting plate 13 and the connecting vertical plate 14. A mounting hole for installing the overflow valve 5 is provided on the mounting plate 13, and the connecting vertical plate 14 and the mounting plate 13 are an integrated structure formed by bending.

[0022] In this embodiment, a clearance hole 15 is provided on the mounting plate 13, and radially outwardly extending slide grooves 16 are provided on both sides of the hole wall of the clearance hole 15. A clamping block 17 adapted to the outer wall of the output pipe at the upper end of the low-pressure gear oil pump 8 is slidably provided in the slide groove 16, and arc-shaped positioning grooves 18 are provided at the opposite ends of the two clamping blocks 17. An extrusion spring 19 connected to the outer side surface of the clamping block 17 is provided in the slide groove 16. The clamping block 17 can slide along the slide groove 16. Under the squeezing and pushing of the extrusion spring 19, the clamping block 17 can press the output pipe at the upper end of the low-pressure gear oil pump 8 in the clearance hole 15, and position the upper end of the low-pressure gear oil pump 8. At the same time, the clamping block 17 can float to play a shock-absorbing role.

[0023] Working principle: push the mobile vehicle 1 to the engine, connect the injection pipe 4 for target shooting to the cylinder spray hook, install the target shooting on the cylinder, open the ball valve 20, press the oil pump start button to shoot, observe whether the injection position of the spray hook is qualified, press the pump stop button, close the ball valve, and manually disassemble the oil pipe joint. The target shooting pressure can be adjusted by the pressure adjustment knob of the plate-type relief valve to adjust the adjustable pressure range (0.3-2.5MPa). The device is sent to the engine by a trolley to detect the injection position of the spray hook in time, which saves a lot of time, is flexible and fast, improves efficiency, is safe and reliable, and reduces the labor intensity of workers.

[0024] The above are only preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present invention, which will not affect the effect of the implementation of the present invention and the practicality of the patent.

Claims

1. A mobile device for detecting the amount of fuel injection leakage in an engine, comprising a mobile vehicle (1), characterized in that: The mobile vehicle (1) is provided with an oil tank (2), the bottom of the oil tank (2) is provided with an oil discharge hole (12), the mobile vehicle (1) is provided with an oil pump device (3) connected to the oil tank (2), the output end of the oil pump device (3) is provided with an oil injection pipe (4), the oil injection pipe (4) is provided with an overflow valve (5), the overflow valve (5) is provided with an oil return pipe (6) connected to the oil tank (2), a placement box (7) for positioning the oil injection pipe (4) is provided on the bottom plate of the mobile vehicle (1), the oil pump device (3) comprises a low-pressure gear oil pump (8) provided on the bottom plate of the mobile vehicle (1) and an explosion-proof motor (9) for driving the low-pressure gear oil pump (8), A mounting plate (13) supporting the overflow valve (5) is vertically provided on the outer wall of one end of the oil tank (2); a connecting vertical plate (14) connected to the outer wall of the oil tank (2) is provided at the inner end of the mounting plate (13); a reinforcing rib is provided between the mounting plate (13) and the connecting vertical plate (14); a clearance hole (15) is provided on the mounting plate (13); two sides of the hole wall of the clearance hole (15) are provided with a slide groove (16) extending radially outward; a clamping block (17) adapted to the outer wall of the output pipe at the upper end of the low-pressure gear oil pump (8) is slidably provided in the slide groove (16); and a compression spring (19) connected to the outer side surface of the clamping block (17) is provided in the slide groove (16).

2. A mobile device for detecting engine fuel injection leakage according to claim 1, characterized in that: An oil delivery pipe (10) connected to the inlet of the low-pressure gear oil pump (8) is provided at the bottom of the oil tank (2), and a filter screen structure (11) is provided at the inlet of the oil delivery pipe (10).

3. A mobile device for detecting engine fuel injection leakage according to claim 1, characterized in that: The overflow valve (5) is a plate-type overflow valve, and the oil return port of the plate-type overflow valve is connected to the top of the oil tank (2) through an oil return pipe (6).

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