Refueling assist device for fuel injection port of internal combustion locomotive

Abstract

The utility model discloses a novel diesel locomotive fuel injection port refueling assist device which comprises a hollow cylinder body into which the front end of a fuel gun is inserted, a clamping jaw matched with a clamping groove in a fuel tank port is arranged at the front end of the cylinder body, the outer end of the clamping jaw protrudes out of the outer surface of the cylinder body, and a rotatable hook is arranged on the outer surface of the middle of the cylinder body. And the hook can be connected with a hanging ring on the oil gun. According to the refueling assist device for the fuel injection port of the internal combustion locomotive, through the arrangement of the hook and the L-shaped clamping groove, an oil gun and the cylinder can be conveniently fixed, meanwhile, through the arrangement of the clamping jaw at the front end of the cylinder, the oil gun and the cylinder can be fixed to an original clamping groove in an oil tank port, fixing and dismounting are convenient, and time and labor are saved; and the fixing and disassembling time of the locomotive refueling operation oil gun is less than 1 minute. Meanwhile, due to the refueling gap, exhaust is smooth, and the problem that the oil gun jumps before fuel oil is injected to a fixed quantity can be effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to fuel filling technical field, concretely is a kind of internal combustion locomotive fuel injection inlet oiling auxiliary device. BACKGROUND

[0002] Railway diesel locomotive is mainly powered by fuel, and a large fuel tank is provided on the vehicle body. Currently, direct-current high-flow oil guns are used for refueling the locomotive, and neither the oil gun nor the fuel filling port is provided with a locking device. When filling fuel, the high-flow oil gun generates a large recoil force, and an operator needs to hold the oil gun all the time, which not only increases the labor intensity of the operator, but also increases the safety hazard in the operation process. In order to keep the oil gun inserted into the fuel tank port, an iron wire is sometimes used to bind the oil gun to the fuel filling port of the fuel tank, so as to prevent the oil gun from being pulled out of the fuel filling port due to the recoil force and its own gravity, causing fuel leakage. The efficiency is low and the labor intensity is large when the operator holds the oil gun to fill fuel. On the one hand, it is inconvenient to operate and the disassembly and assembly take a long time and are low in efficiency, and on the other hand, the reliability is also low.

[0003] In addition, during the fuel filling process, too much oil gas is generated when the oil gun is directly inserted into the fuel tank, and the oil gas cannot be discharged, which will cause the breather hole to be blocked by a large amount of oil gas, generate a large air pressure, and backflow into the oil gun. The system will stop fueling, causing the oil gun to jump. CONTENT OF THE UTILITY MODEL

[0004] The utility model solves the technical problems of the prior art, provides an internal combustion locomotive fuel injection inlet oiling auxiliary device, which can firmly fix the oil gun to the fuel filling port, can avoid the problem of the oil gun jumping, and is convenient to disassemble and assemble.

[0005] The above technical purpose of the utility model is achieved by the following technical scheme: an internal combustion locomotive fuel injection inlet oiling auxiliary device includes a hollow cylinder body into which the front end of an oil gun is inserted, a clamping jaw is arranged at the front end of the cylinder body and cooperates with a clamping groove on the fuel tank port, the outer end of the clamping jaw protrudes from the outer surface of the cylinder body and tightly cooperates with the clamping groove on the fuel filling port, a rotatable hook is arranged on the outer surface of the middle part of the cylinder body, and the hook can be firmly connected with a hook ring on the oil gun.

[0006] According to the above technical scheme, during use, the cylinder body can be fixed to the fuel tank port by the clamping jaw, then the oil outlet pipe at the front end of the oil gun is inserted into the cylinder body, the hook is rotated and clamped into the hook ring on the oil gun, so that the oil gun and the cylinder body are integrated, and the oil gun is prevented from being pulled out under the action of the recoil force when fueling.

[0007] As a further scheme, a guide sleeve is arranged at the front end of the cylinder body to limit the position of the front end of the oil gun, and an exhaust gap is formed between the outer wall of the guide sleeve and the inner wall of the cylinder body.

[0008] The above technical solution ensures that the front end of the fuel nozzle is always aligned with the center of the fuel filler neck, and the venting gap design ensures that the fuel vapor generated during refueling can be smoothly discharged from the venting gap.

[0009] As a further solution: the inner surface of the guide sleeve is funnel-shaped, and the diameter of the rear end of the guide sleeve is larger than the diameter of the front end.

[0010] The above technical solution allows the oil gun tip to be easily and accurately inserted into the guide sleeve.

[0011] Preferably, there are three grippers, which are circumferentially distributed at the lower end of the cylinder.

[0012] With the above technical solution, there are generally three slots and three claws on the fuel tank opening, which can be well adapted to the slots on the fuel tank opening. At the same time, three claws provide a better fixing effect than a single claw.

[0013] As a further solution: the claws are evenly distributed along the radial circumference of the cylinder, and the inner end of the claws is connected to the front end of the guide sleeve.

[0014] The above technical solution allows for a relatively convenient use of chucks to fix the guide sleeve in the middle of the cylinder.

[0015] As a further solution: an L-shaped groove is provided at the rear end of the cylinder to cooperate with the positioning block on the side of the oil gun.

[0016] The above technical solution further enhances the connection strength and stability between the oil gun and the rear end of the cylinder by setting up the slot. In use, first insert the liquid storage tube at the front end of the oil gun into the cylinder, then rotate the locking block on the side of the oil gun to face the longitudinal section of the L-shaped slot. Then rotate the oil gun to move the locking block on the side of the oil gun onto the transverse section of the L-shaped slot, thus fixing the slot and locking block in place.

[0017] Preferably, a stud is welded to the outside of the cylinder, a hook is sleeved on the stud, and a nut is installed on the stud to prevent the claw from falling off.

[0018] The above technical solution allows for easy fixation of the hook, enabling it to rotate around the stud.

[0019] Compared with existing technologies, the advantages of this utility model are as follows: The hook and L-shaped slot design facilitates easy fixing of the fuel nozzle and cylinder. Furthermore, the claw at the front end of the cylinder allows for secure fixing with the existing slot on the fuel tank opening. Fixing and disassembling are convenient, saving time and effort; the time for fixing and disassembling the fuel nozzle during locomotive refueling operations is less than 1 minute. Additionally, the presence of a refueling gap ensures smooth venting, effectively solving the problem of the fuel nozzle tripping before the designated metered amount of fuel has been added. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of a high-flow-rate oil gun.

[0021] Figure 2 A 3D view of the fuel tank opening;

[0022] Figure 3 for Figure 2 A cross-sectional schematic diagram;

[0023] Figure 4 Three-dimensional representation of the embodiment Figure 1 ;

[0024] Figure 5 Three-dimensional representation of the embodiment Figure 2 ;

[0025] Figure 6 This is a cross-sectional schematic diagram of an embodiment.

[0026] Reference numerals in the attached diagram: 1. Oil outlet pipe; 2. Clamping block; 3. Hanging ring; 4. Oil tank opening; 5. Clamping groove; 6. Annular groove; 7. Cylinder body; 8. Clamping claw; 9. Hook; 10. Guide sleeve; 11. Exhaust gap; 12. L-shaped clamping groove; 13. Stud; 14. Nut. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] like Figures 4-6 As shown, a fuel inlet refueling auxiliary device for a diesel locomotive includes a hollow cylinder 7 into which the fuel outlet pipe 1 of the fuel supply gun is inserted. The front end of the cylinder 7 is provided with a claw 8 that engages with a groove 5 on the fuel tank opening 4, and the outer end of the claw 8 protrudes from the outer surface of the cylinder 7. Figure 2 and 3 As shown, most fuel tanks have a slot 5, and inside the slot 5 is an annular groove 6 for other objects to be inserted. The fuel tank cap is also usually secured within this annular groove 6. There are three claws 8, evenly distributed around the outer circumference of the cylinder 7. When installing the cylinder 7 onto the fuel tank opening 4, first align the outer ends of the three claws 8 with the three slots 5 on the fuel tank opening 4. Then, insert the claws 8 into the annular groove 6 and rotate them at a certain angle to misalign the outer ends of the claws 8 with the slots 5, thus preventing the cylinder 7 from falling off the fuel tank opening 4 after installation.

[0029] A rotatable hook 9 is provided on the outer surface of the middle part of the cylinder 7. The hook 9 can be connected to the hanging ring 3 on the oil gun. When the oil gun is inserted into the cylinder 7, the hook 9 is rotated so that the upper end of the hook 9 is rotated towards the oil gun, so that the hook 9 is engaged in the hanging ring 3 on the oil gun, thereby preventing the oil gun from falling out of the cylinder 7 under the action of recoil force when refueling.

[0030] A guide sleeve 10 is fixed to the inner side of the front end of the cylinder 7. The guide sleeve 10 and the sleeve are concentrically arranged. There is a gap between the outer wall of the guide sleeve 10 and the inner wall of the cylinder 7. This gap is the exhaust gap 11, which is used to exhaust the oil vapor in the tank during refueling, so that the exhaust of the tank is smoother and the nozzle will not stop before the tank is full.

[0031] The inner surface of the guide sleeve 10 is flared, and the diameter of the rear end of the guide sleeve 10 is larger than that of the front end, so that the oil outlet pipe 1 at the front end of the oil gun can be accurately inserted into the guide sleeve 10.

[0032] The guide sleeve 10 is fixed inside the cylinder 7 by the claw 8. The claw 8 is welded to the cylinder 7. The inner end of the claw 8 extends toward the center of the cylinder 7. The inner end of the claw 8 can also be fixed to the front end of the guide sleeve 10 by welding.

[0033] An L-shaped slot 12 is provided at the rear end of the cylinder 7, which can engage with the locking block 2 on the side of the oil gun. Figure 1 As shown, the oil gun has protruding rectangular locking blocks 2 on both sides. When inserting the oil gun into the rear end of the cylinder 7, first insert the rectangular blocks 2 into the longitudinal section of the L-shaped slot 12, aligning the front end of the locking blocks 2 with the bottom of the L-shaped slot 12. Then, rotate the oil gun clockwise to rotate the locking blocks 2 to the transverse section of the L-shaped slot 12, causing them to engage and thus locking the oil gun and the upper end of the cylinder 7 in place, further preventing the oil gun from coming off the cylinder 7. When it is necessary to remove the oil gun from the cylinder 7, simply rotate the hook 9 to disengage it from the hanging ring 3, then rotate the oil gun counterclockwise, and finally pull the oil gun out of the upper end of the cylinder 7.

[0034] A stud 13 is welded to the outer side of the middle part of the cylinder 7. One end of the hook 9 is sleeved on the stud 13, and the other end can rotate around the stud 13. A nut 14 is also installed on the stud 13. The nut 14 is located on the upper side of the hook 9 to prevent the hook 9 from detaching from the stud 13.

[0035] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A fuel filler auxiliary device for a diesel locomotive fuel inlet, characterized in that: The cylinder (7) includes a hollow oil supply gun with an oil outlet pipe (1) inserted into it. The front end of the cylinder (7) is provided with a claw (8) that cooperates with the slot (5) on the oil tank opening (4). The outer end of the claw (8) protrudes from the outer surface of the cylinder (7) and forms a tight fit with the slot (5) on the oil tank opening (4). A rotatable hook (9) is provided on the outer surface of the middle part of the cylinder (7). The hook (9) can be firmly connected to the hanging ring (3) on the oil gun.

2. The fuel filling auxiliary device for diesel locomotives according to claim 1, characterized in that: The front end of the cylinder (7) is provided with a guide sleeve (10) to restrict the position of the oil gun front end, and an exhaust gap (11) is formed between the outer wall of the guide sleeve (10) and the inner wall of the cylinder (7).

3. The fuel filling auxiliary device for diesel locomotives according to claim 2, characterized in that: The inner surface of the guide sleeve (10) is flared, and the diameter of the rear end of the guide sleeve (10) is larger than that of the front end.

4. The fuel filling auxiliary device for diesel locomotives according to claim 1, characterized in that: There are three chucks (8), which are distributed circumferentially at the lower end of the cylinder (7).

5. The fuel filling auxiliary device for diesel locomotives according to claim 4, characterized in that: The claws (8) are evenly distributed along the radial circumference of the cylinder (7), and the inner end of the claws (8) is connected to the front end of the guide sleeve (10).

6. The fuel filler auxiliary device for diesel locomotives according to claim 1, characterized in that: The rear end of the cylinder (7) is provided with an L-shaped groove (12) that mates with the positioning block on the side of the oil gun.

7. The fuel filler auxiliary device for diesel locomotives according to claim 1, characterized in that: A stud (13) is welded to the outside of the cylinder (7), and a hook (9) is fitted on the stud (13). A nut (14) is also installed on the stud (13) to prevent the claw (8) from falling off.

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