Quick emptying device for diesel oil of engine

By simultaneously blowing and drawing air into the engine, and utilizing a pneumatic diaphragm pump and filter system, the problem of low diesel venting efficiency in existing technologies has been solved, achieving efficient fuel recovery and improved production efficiency.

CN224282776UActive Publication Date: 2026-05-26GUANGXI YUCHAI MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGXI YUCHAI MASCH CO LTD
Filing Date
2025-05-28
Publication Date
2026-05-26

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  • Figure CN224282776U_ABST
    Figure CN224282776U_ABST
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Abstract

The utility model discloses a quick emptying device for diesel oil of an engine, which belongs to the technical field of engines and solves the problem of low efficiency of the existing fuel oil emptying method. The rapid diesel oil emptying device for the engine comprises a cart, an oil drum is arranged on the cart, a pneumatic diaphragm pump is arranged on the cart above the oil drum, an oil return pipe is arranged at an oil outlet of the pneumatic diaphragm pump and communicated with the oil drum, a support is arranged on the cart on one side of the pneumatic diaphragm pump, and the pneumatic diaphragm pump is arranged on the support. The support is detachably provided with an air source triple piece, the air source triple piece comprises an air lubricator, a pressure regulator and an air filter which are communicated in sequence, an air inlet of the air lubricator is provided with a first air inlet branch pipe communicated with the air lubricator, and the other end of the first air inlet branch pipe is provided with a three-way connector; and one interface of the three-way joint is provided with an air inlet header pipe. According to the quick emptying device for the diesel oil of the engine, the working efficiency is effectively improved.
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Description

Technical Field

[0001] This utility model relates to the field of engine technology, and more specifically, to an engine diesel fuel rapid venting device. Background Technology

[0002] Before leaving the factory after engine testing, the diesel fuel inside the engine usually needs to be purged to facilitate transportation and storage and prevent fuel leakage during transport or storage. The traditional method of purging diesel fuel is to hang a collection bottle or sealed bag at the engine's fuel return port to allow the diesel fuel to flow out naturally. However, this method requires an additional collection bottle or sealed bag, which is inconvenient for users.

[0003] In existing technologies, there are methods that utilize compressed air to blow airflow into the engine's fuel inlet, using high-pressure airflow to expel fuel from the fuel line and achieve diesel venting. However, existing venting methods only use high-pressure airflow to blow out diesel fuel. Although this can achieve diesel venting, the internal fuel lines of the engine are quite complex, involving many components. Using only airflow to vent fuel is not ideal, and the efficiency is not high enough. It also cannot keep up with the production rhythm on site, affecting on-site production efficiency. Utility Model Content

[0004] The technical problem to be solved by this utility model is to address the above-mentioned shortcomings of the prior art by providing a rapid diesel venting device for engines. By using a venting method that combines blowing and sucking air simultaneously, the venting effect can be greatly improved, thus effectively increasing work efficiency.

[0005] The technical solution of this utility model is as follows: A rapid diesel venting device for an engine includes a trolley with an oil drum on it. A pneumatic diaphragm pump is mounted on the trolley above the oil drum. The oil outlet of the pneumatic diaphragm pump has a return pipe, the other end of which is connected to the oil drum. A bracket is mounted on one side of the trolley next to the pneumatic diaphragm pump. A three-way air supply unit is detachably mounted on the bracket. The three-way air supply unit includes a gas lubricator, a pressure regulator, and a gas filter connected in sequence. The air inlet of the gas lubricator has a first air inlet branch pipe connected thereto. The other end of the first air inlet branch pipe has a tee connector. One port of the tee connector has a main air inlet pipe with a shut-off valve. The other port of the tee connector has a second air inlet branch pipe, the other end of which is connected to the air inlet of the pneumatic diaphragm pump. The suction port of the pneumatic diaphragm pump has a suction pipe, and the outlet of the gas filter has a blowing pipe connected thereto.

[0006] As a further improvement, both the inhalation tube and the blowing tube are equipped with detachable quick connectors at their other ends.

[0007] Furthermore, a handrail is provided on the trolley on one side of the support, and a reinforcing rod is provided on the handrail, with the other end of the reinforcing rod connected to the trolley.

[0008] Furthermore, the trolley on the other side of the pneumatic diaphragm pump is equipped with multiple placement racks, each of which has multiple placement slots, and the suction pipe and blowing pipe are movably snapped into the placement slots.

[0009] Furthermore, a support plate is provided between the oil drum and the trolley, and the support plate is made of iron.

[0010] Furthermore, at least one magnet is provided at the bottom of the oil drum cavity, and a hemp rope is provided on the magnet, with the other end of the hemp rope extending to the outside of the oil drum.

[0011] Furthermore, a protective device is provided on the support plate surrounding the oil drum. The protective device includes a movable enclosure and three fixed enclosures. The three fixed enclosures are fixedly installed on the support plate. The bottom of the movable enclosure is provided with an insert plate. The support plate is provided with a sink groove, and the insert plate is movably inserted into the sink groove.

[0012] Furthermore, the fixed enclosure plates on both sides of the settling trough are provided with grooves, and the two ends of the movable enclosure plate are provided with limiting blocks, with the two limiting blocks being inserted into the two grooves in a one-to-one correspondence.

[0013] Furthermore, the bottom of the trolley is equipped with multiple casters with self-locking devices.

[0014] Beneficial effects

[0015] Compared with the prior art, this utility model has the following advantages:

[0016] This utility model discloses a rapid diesel fuel venting device for engines. A portion of the high-pressure airflow is blown into the fuel system of the engine through a gas lubricator, pressure regulator, gas filter, and air blowing pipe. The other portion of the airflow is diverted through a three-way connector and enters a pneumatic diaphragm pump via a second intake branch pipe. This drives the pneumatic diaphragm pump to generate suction, which draws the fuel from the engine's fuel system through the suction pipe, creating negative pressure. This simultaneous blowing and suction venting method greatly improves the venting effect and working efficiency. Furthermore, the fuel can be recovered into the fuel container, avoiding waste. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the left-side structure of this utility model;

[0019] Figure 3 This is a cross-sectional structural diagram of the movable enclosure in this utility model;

[0020] Figure 4 This is a schematic diagram of the groove structure in this utility model;

[0021] Figure 5 This is a cross-sectional structural diagram of the support plate in this utility model.

[0022] The components are as follows: 1-Trolley, 2-Pneumatic diaphragm pump, 3-Bracket, 4-Support plate, 5-Oil drum, 6-Gas lubricator, 7-Pressure regulator, 8-Gas filter, 9-Quick connector, 10-Inlet main pipe, 11-Stop valve, 12-T-connector, 13-First inlet branch pipe, 14-Second inlet branch pipe, 15-Suction pipe, 16-Blow pipe, 17-Return oil pipe, 18-Handrail, 19-Connecting plate, 20-Placement rack, 21-Placement slot, 22-Fixed enclosure, 23-Modible enclosure, 24-Settling trough, 25-Insert plate, 26-Groove, 27-Limiting plate, 28-Wheel caster. Detailed Implementation

[0023] The present invention will be further described below with reference to specific embodiments shown in the accompanying drawings.

[0024] See Figure 1-5 A rapid diesel fuel venting device for engines includes a trolley 1 with an oil tank 5 mounted on it. A pneumatic diaphragm pump 2 is mounted on the trolley 1 above the oil tank 5. The oil outlet of the pneumatic diaphragm pump 2 has a return oil pipe 17, the other end of which is connected to the oil tank 5. A bracket 3 is mounted on one side of the trolley 1 next to the pneumatic diaphragm pump 2. A gas source triplet is detachably mounted on the bracket 3. The gas source triplet includes a gas lubricator 6, a pressure regulator 7, and a gas filter 8 connected in sequence. The gas lubricator 6, pressure regulator 7, and gas filter 8 are bolted to the bracket 3. The air inlet of 6 is provided with a first air inlet branch pipe 13 connected to it. The other end of the first air inlet branch pipe 13 is provided with a three-way connector 12. One of the interfaces of the three-way connector 12 is provided with an air inlet main pipe 10. The air inlet main pipe 10 is provided with a shut-off valve 11. The other end of the air inlet main pipe 10 is connected to an air source, such as an air compressor. The other interface of the three-way connector 12 is provided with a second air inlet branch pipe 14. The other end of the second air inlet branch pipe 14 is connected to the air inlet of the pneumatic diaphragm pump 2. The suction port of the pneumatic diaphragm pump 2 is provided with a suction pipe 15. The air outlet of the gas filter 8 is provided with a blowing pipe 16 connected to it.

[0025] In use, connect the air blow pipe 16 to the engine's fuel inlet and the air intake pipe 15 to the engine's fuel outlet. Open the shut-off valve 11 to allow compressed air to enter the intake manifold 10. After being split by the three-way connector 12, part of the airflow passes through the gas lubricator 6, pressure regulator 7, gas filter 8, and air blow pipe 16 into the engine's fuel system. The other part of the airflow enters the pneumatic diaphragm pump 2 through the second intake branch pipe 14, driving the pneumatic diaphragm pump 2 to work and generate suction. This suction then draws the fuel system in the engine through the air intake pipe 15, creating a negative pressure. This simultaneous blowing and suction method greatly improves the venting effect, effectively increasing work efficiency. Furthermore, the fuel can be recovered into the fuel container, avoiding waste.

[0026] In this embodiment, the other end of the intake pipe 15 and the blowing pipe 16 are provided with detachable quick connectors 9. The intake pipe 15 and the blowing pipe 16 are quickly connected to the engine through the quick connectors 9, which effectively improves working efficiency. At the same time, the quick connectors 9 are detachably connected to the intake pipe 15 and the blowing pipe 16, which facilitates the replacement of the quick connectors 9.

[0027] In this embodiment, a handrail 18 is provided on the trolley 1 on one side of the bracket 3. A reinforcing rod 19 is provided on the handrail 18. The other end of the reinforcing rod 19 is connected to the trolley 1. The overall structural strength of the handrail 18 is enhanced by the connection of the reinforcing rod 19. When moving the trolley 1, the trolley 1 can be pushed through the handrail 18, which effectively improves work efficiency.

[0028] In this embodiment, a plurality of placement racks 20 are provided on the trolley 1 on the other side of the pneumatic diaphragm pump 2. Each placement rack 20 is provided with a plurality of placement slots 21. The suction pipe 15 and the blowing pipe 16 are movably engaged in the placement slots 21. The depth and width of the placement slots 21 are adapted to the diameters of the blowing pipe 15 and the suction pipe 16. When the venting device is not in use, the suction pipe 15 and the blowing pipe 16 can be placed in the placement slots 21 to avoid the suction pipe 15 and the blowing pipe 16 from being placed randomly and causing them to become entangled and affecting their use.

[0029] In this embodiment, a support plate 4 is provided between the oil drum 5 and the trolley 1. The support plate 4 is made of iron. The iron support plate 4 prevents the fuel from corroding the oil. At the same time, the iron support plate 4 has good conductivity and can effectively discharge static electricity when the trolley 1 moves, thus preventing static electricity from accumulating to a certain extent and causing a safety accident.

[0030] In this embodiment, at least one magnet is provided at the bottom of the cavity of the oil drum 5. A hemp rope is provided on the magnet, and the other end of the hemp rope extends to the outside of the oil drum 5. The oil drum 5 is clamped on the support plate 4 by the attraction force of the magnet, which avoids the problem of the oil drum shaking. At the same time, it can also attract some iron filings in the recovered fuel, which plays a certain filtering role. Furthermore, the magnet can be removed from the oil inlet of the oil drum through the hemp rope, making it easy to unload the oil drum 5 from the trolley 1.

[0031] In this embodiment, a protective device is provided on the support plate 4 surrounding the oil drum 5. The protective device can protect the lower middle part of the oil drum 5, preventing the trolley 1 from colliding with other objects during movement, which could damage the oil drum 5 or even cause it to tip over due to excessive impact force. The protective device includes a movable enclosure 23 and three fixed enclosures 22. The three fixed enclosures 22 are fixedly installed on the support plate 4. The bottom of the movable enclosure 23 is provided with an insert plate 25. The support plate 4 is provided with a sink 24. The insert plate 25 is movably inserted into the sink 24. The movable enclosure 23 can be detachably installed on the support plate 4 by the insert plate 25 being movably inserted into the sink 24. When it is necessary to remove the oil drum 5 from the trolley 1, the movable enclosure 23 can be removed, and the oil drum can be removed from the installation trolley 1.

[0032] In this embodiment, the fixed enclosure plates 22 on both sides of the sink 24 are provided with grooves 26, and the two ends of the movable enclosure plate 23 are provided with limiting blocks 27. The two limiting blocks 27 are inserted into the two grooves 26 in a one-to-one correspondence. The limiting plates 27 on both sides of the movable enclosure plate 23 are inserted into the grooves 26, which further improves the firmness of the movable enclosure plate 23.

[0033] In this embodiment, the bottom of the trolley 1 is provided with a plurality of casters 28 with self-locking devices. There are four casters 28 with self-locking devices, and the four casters 28 are respectively installed at the four corners of the bottom of the trolley 1. The trolley 1 can move freely by means of the casters 28. When the trolley 1 moves to the designated position, the sub-self-locking devices on the casters 28 can be locked to prevent the trolley 1 from moving during operation.

[0034] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present utility model. These modifications and improvements will not affect the effectiveness of the present utility model or the practicality of the patent.

Claims

1. A rapid diesel fuel venting device for an engine, characterized in that, The system includes a trolley (1), on which an oil drum (5) is mounted. A pneumatic diaphragm pump (2) is mounted on the trolley (1) above the oil drum (5). The oil outlet of the pneumatic diaphragm pump (2) has a return oil pipe (17), the other end of which is connected to the oil drum (5). A bracket (3) is mounted on one side of the trolley (1) of the pneumatic diaphragm pump (2). A detachable air source triplet is mounted on the bracket (3). The air source triplet includes a gas lubricator (6), a pressure regulator (7), and a gas filter (8) connected in sequence. The air inlet of the gas lubricator (6) is connected to... The first intake branch pipe (13) is connected to the gas filter (8). The other end of the first intake branch pipe (13) is provided with a three-way connector (12). One of the interfaces of the three-way connector (12) is provided with an intake main pipe (10). The intake main pipe (10) is provided with a shut-off valve (11). The other interface of the three-way connector (12) is provided with a second intake branch pipe (14). The other end of the second intake branch pipe (14) is connected to the air inlet of the pneumatic diaphragm pump (2). The suction port of the pneumatic diaphragm pump (2) is provided with a suction pipe (15). The outlet of the gas filter (8) is provided with a blowing pipe (16) connected to it.

2. The engine diesel rapid venting device according to claim 1, characterized in that, The other end of the air inhalation pipe (15) and the air blowing pipe (16) are provided with a detachable quick connector (9).

3. The engine diesel rapid venting device according to claim 1, characterized in that, A handrail (18) is provided on the trolley (1) on one side of the bracket (3), and a reinforcing rod (19) is provided on the handrail (18). The other end of the reinforcing rod (19) is connected to the trolley (1).

4. The engine diesel rapid venting device according to claim 1, characterized in that, On the other side of the pneumatic diaphragm pump (2), there are multiple placement racks (20), each of the placement racks (20) has multiple placement slots (21), and the suction pipe (15) and the blowing pipe (16) are movably snapped into the placement slots (21).

5. The engine diesel rapid venting device according to claim 1, characterized in that, A support plate (4) is provided between the oil drum (5) and the cart (1), and the support plate (4) is made of iron.

6. The engine diesel rapid venting device according to claim 5, characterized in that, At least one magnet is provided at the bottom of the cavity of the oil drum (5), and a hemp rope is provided on the magnet, with the other end of the hemp rope extending to the outside of the oil drum (5).

7. The engine diesel rapid venting device according to claim 5, characterized in that, The oil drum (5) is provided with a protective device on the support plate (4) around it. The protective device includes a movable enclosure (23) and three fixed enclosures (22). The three fixed enclosures (22) are fixedly installed on the support plate (4). The bottom of the movable enclosure (23) is provided with an insert plate (25). The support plate (4) is provided with a sinkhole (24). The insert plate (25) is movably inserted into the sinkhole (24).

8. The engine diesel rapid venting device according to claim 7, characterized in that, The fixed enclosures (22) on both sides of the sink (24) are provided with grooves (26), and the movable enclosures (23) are provided with limiting blocks (27) at both ends. The two limiting blocks (27) are inserted into the two grooves (26) in a one-to-one correspondence.

9. The engine diesel rapid venting device according to claim 1, characterized in that, The bottom of the trolley (1) is equipped with multiple casters (28) with self-locking devices.