Quick dismounting and positioning tool for diesel generator set fuel injection nozzle

CN224914649UActive Publication Date: 2026-10-30BEIJING HUADING POWER GRP CO LTD
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Patent Information

Application Number
CN202522178850.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-15
Publication Date
2026-10-30
Estimated Expiration
2035-10-15

AI Technical Summary

Technical Problem

[0004]柴油发电机组伴随长时间工作,需要定期对喷油嘴进行更换,通常都是由人工拧开螺母,然后将喷油嘴取出并更换新的喷油嘴,人工拆装工作效率不高,拆装时要耗费很多时间

Benefits of technology

通过活动块沿丝杆向下移动带动两组夹爪之间相互靠拢,在夹爪靠拢过程中,卡槽会与螺母表面的凸角相接触,同时斜面会卡在螺母的底部,工作人员只需一手握住旋转手柄,另一只手扳动把手即可将螺母快速拆下,方便快捷,能够有效提高工作效率,降低拆装喷油嘴过程中耗费的时间;

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a diesel generating set fuel injection nozzle quick dismounting positioning tool, diesel generating set fuel injection nozzle quick dismounting positioning tool. The utility model belongs to diesel generating set diesel generating set technical field, including the impact block, one side fixedly connected with the slide bar of impact block bottom, one end of slide bar is fixedly connected with the screw rod, one end fixedly connected with the connecting frame of screw rod, the inside swing joint of connecting frame has the pivot, and the surface of pivot is connected with the clamping jaw. Through the movable block and move down along the screw rod and drive two sets of clamping jaw between each other and draw close, in the clamping jaw draw close process, the clamping groove will be contacted with the convex angle of nut surface, and the inclined plane will be clamped in the bottom of nut simultaneously, and the staff only needs to hold the rotary handle with one hand, and the nut can be quickly disassembled with the other hand, can effectively improve work efficiency, reduce the time spent in the process of dismounting fuel injection nozzle.
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Description

Technical Field

[0001] This utility model relates to the field of diesel generator technology, specifically to a tool for quick disassembly and positioning of diesel generator injectors. Background Technology

[0002] Diesel generators have advantages such as large capacity, strong environmental adaptability, long continuous power supply time, and easy mobility, and are widely used in independent power supply systems and emergency backup power supply systems.

[0003] Diesel generator sets have a relatively complex structure. In terms of composition, they can be mainly divided into two parts: the electrical components, which consist of a digital variable frequency generator and its load, and the mechanical components, which consist of a diesel engine and its speed control system.

[0004] Diesel generator sets operate for extended periods, requiring regular replacement of fuel injectors. This is typically done manually by loosening the nuts, removing the injector, and replacing it with a new one. This manual process is inefficient and time-consuming. Therefore, there is an urgent need to design a quick-release and positioning tool for diesel generator injectors to solve this problem. Utility Model Content

[0005] The purpose of this invention is to provide a quick-release and positioning tool for diesel generator injectors, in order to overcome the aforementioned shortcomings in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a quick-release and positioning tool for diesel generator injectors, comprising an impact block, a slide rod fixedly connected to one side of the bottom of the impact block, a lead screw fixedly connected to one end of the slide rod, a connecting frame fixedly connected to one end of the lead screw, a rotating shaft movably connected inside the connecting frame, a gripper connected to the surface of the rotating shaft, and a movable block threadedly connected to the surface of the lead screw.

[0007] Preferably, the impact block has a slot inside, a handle is inserted into the slot, one end of the handle is fixedly connected to a limiting post, and the surface of the limiting post is engaged with the inside of the slot.

[0008] Preferably, the top of the impact block is threaded with a connector, the connector has a bearing installed inside, and the bearing has a rotating handle movably connected inside.

[0009] Preferably, a magnetic sheet is installed inside the movable block, and two sets of inserts are fixedly connected to one side of the surface of the slide hammer, with the inserts in contact with the magnetic sheet.

[0010] Preferably, a sliding block is fixedly connected to one end of the rotating handle, and a sliding groove is provided inside the connector, with the inner surface of the groove slidably connected to the surface of the sliding block.

[0011] Preferably, there are two sets of grippers, and the positions of the two sets of grippers correspond to each other. One side of the top of each set of grippers is in contact with the surface of the movable block.

[0012] Preferably, a slot is provided at one end of the bottom of the gripper, and inclined surfaces are provided on both sides of the bottom of the gripper.

[0013] The advantages of the quick-release and positioning tool for diesel generator injectors provided by this utility model in the above technical solution are as follows: The movable block moves downward along the screw, causing the two sets of jaws to come closer together. During the process of the jaws coming closer together, the slot will contact the convex corner on the surface of the nut, and the inclined surface will be stuck at the bottom of the nut. The operator only needs to hold the rotating handle with one hand and turn the handle with the other hand to quickly remove the nut. It is convenient and quick, which can effectively improve work efficiency and reduce the time spent in the process of disassembling and assembling the fuel injector. After removing the nut, the fuel injector can be gripped by the clamps, and then the sliding hammer can be used to lift it upwards to quickly remove the fuel injector, making it convenient for quick installation and removal of the fuel injector. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0015] Figure 1 This is a frontal perspective view of an embodiment of the quick-release and positioning tool for diesel generator injectors of this utility model.

[0016] Figure 2 This is a disassembly diagram of the impact structure provided in an embodiment of the quick disassembly and positioning tool for diesel generator set injectors of this utility model.

[0017] Figure 3 This is a disassembly diagram of the rotating structure provided in an embodiment of the quick disassembly and positioning tool for diesel generator set injectors of this utility model.

[0018] Figure 4 This is a front view structural diagram of an embodiment of the quick disassembly and positioning tool for diesel generator set injectors of this utility model.

[0019] Figure 5 This is a schematic diagram of the gripper structure provided in an embodiment of the quick disassembly and positioning tool for diesel generator set injectors of this utility model.

[0020] Figure 6A perspective view of the gripper structure provided in an embodiment of the quick-release and positioning tool for diesel generator injectors of this utility model.

[0021] Figure 7 A schematic diagram of the handle structure provided in an embodiment of the quick disassembly and positioning tool for diesel generator set injectors of this utility model.

[0022] Figure 8 This is a cross-sectional view of the rotating handle structure provided in an embodiment of the quick-release and positioning tool for diesel generator set injectors of this utility model.

[0023] 1. Impact block; 2. Slide rod; 3. Slide hammer; 4. Movable block; 5. Gripper; 6. Rotating handle; 7. Handle; 8. Connecting frame; 9. Lead screw; 10. Insert block; 11. Magnetic sheet; 12. Bearing; 13. Connector; 14. Slot; 15. Shaft; 16. Inclined surface; 17. Slot; 18. Limiting post; 19. Slide groove; 20. Sliding block. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0025] like Figure 1-8 As shown, the quick-release and positioning tool for diesel generator injectors provided in this embodiment includes an impact block 1. A slide rod 2 is fixedly connected to one side of the bottom of the impact block 1. A lead screw 9 is fixedly connected to one end of the slide rod 2. A connecting frame 8 is fixedly connected to one end of the lead screw 9. A rotating shaft 15 is movably connected inside the connecting frame 8. A gripper 5 is connected to the surface of the rotating shaft 15. A movable block 4 is threadedly connected to the surface of the lead screw 9.

[0026] Specifically, in this embodiment, an impact block 1 is included. A slide rod 2 is fixedly connected to one side of the bottom of the impact block 1. The rigid structure of the fixed connection can improve the strength of the tool. A lead screw 9 is fixedly connected to one end of the slide rod 2. A connecting frame 8 is fixedly connected to one end of the lead screw 9. A rotating shaft 15 is movably connected inside the connecting frame 8. A gripper 5 is connected to the surface of the rotating shaft 15. A groove 17 and a bevel 16 structure are opened at the bottom end of the gripper 5 to facilitate the fitting of nuts. A movable block 4 is threadedly connected to the surface of the lead screw 9. Rotating the movable block 4 causes it to move downward, thereby continuously squeezing one end of the gripper 5, so that the grippers 5 move closer to each other along the rotating shaft 15, which facilitates the clamping of nuts or fuel injectors and can better fit nuts or fuel injectors of different specifications.

[0027] In one embodiment of this utility model, the impact block 1 has a slot 14 inside, and a handle 7 is inserted into the slot 14. One end of the handle 7 is fixedly connected to a limiting post 18, and the surface of the limiting post 18 is engaged with the inside of the slot 14. By inserting the handle 7 into the inside of the slot 14 and then rotating it counterclockwise by 90 degrees, the limiting post 18 can be temporarily engaged in the inside of the slot 14, which makes it easier to apply force when tightening the nut.

[0028] In another embodiment of this utility model, the top of the impact block 1 is threaded with a connector 13, and a bearing 12 is installed inside the connector 13. A rotating handle 6 is movably connected inside the bearing 12. Holding the rotating handle 6 ensures that the tool is always vertical during the process of disassembling the nut. During the process of rotating the tool, the bearing 12 drives the rotating handle 6 to rotate, eliminating the need for frequent hand switching and allowing the nut to be unscrewed in one go, thus improving work efficiency.

[0029] In another embodiment of this utility model, a magnetic sheet 11 is installed inside the movable block 4, and two sets of inserts 10 are fixedly connected to one side of the surface of the slide 3. The inserts 10 are in contact with the magnetic sheet 11, and the magnetic sheet 11 attracts the metal inserts 10. When the slide 3 is not in use, it can prevent the slide 3 from moving up and down.

[0030] In one embodiment of this utility model, a sliding block 20 is fixedly connected to one end of the rotating handle 6, and a groove 19 is provided inside the connector 13. The inner surface of the groove 19 is slidably connected to the surface of the sliding block 20. The groove 19 restricts the sliding block 20. When the impact block 1 is rotated, the sliding block 20 will rotate along the groove 19.

[0031] In another embodiment of this utility model, there are two sets of grippers 5, and the positions of the two sets of grippers 5 correspond to each other. One side of the top of the two sets of grippers 5 is in contact with the surface of the movable block 4. The movable block 4 has an inverted conical design. As the movable block 4 moves downward, its contact surface with the two sets of grippers 5 will also expand, so that the grippers 5 move closer together synchronously and clamp firmly.

[0032] In another embodiment of this utility model, a slot 17 is provided at one end of the bottom of the gripper 5, and inclined surfaces 16 are provided on both sides of the bottom of the gripper 5. The slot 17 can effectively lock onto the protrusion on the surface of the nut, thereby adapting to more nuts of different specifications. The inclined surfaces 16 can also abut against the bottom surface of the fuel injector during the disassembly process, improving the stability during disassembly.

[0033] Working steps: 1. Screw the connector 13 into the top of the impact block 1, then align the handle 7 with the slot 14 and insert it. Then rotate the handle 7 ninety degrees to temporarily lock it inside the slot 14. Rotate the movable block 4 to move it downward, thereby simultaneously squeezing one end of the two sets of grippers 5, so that the two sets of grippers 5 move closer to each other around the rotating shaft 15, thereby driving the slot 17 and the inclined surface 16 to move closer to each other. When the slot 17 is in full contact with the nut surface, hold the rotating handle 6 with one hand and rotate the handle 7 with the other hand to quickly unscrew the nut. 2. Rotate the movable block 4 in the opposite direction to reduce the contact force between the clamps 5, thereby removing the nut. Then, clamp the clamps 5 on both sides of the fuel injector that needs to be cleaned. Twist the movable block 4 again to firmly clamp the fuel injector with the clamps 5. Hold the sliding hammer 3 and lift it vertically upwards several times to remove the fuel injector. After replacing the new fuel injector, use this tool to tighten the nut again.

[0034] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A quick-release and positioning tool for diesel generator injectors, comprising an impact block (1), characterized in that, A slide rod (2) is fixedly connected to one side of the bottom of the impact block (1). A lead screw (9) is fixedly connected to one end of the slide rod (2). A connecting frame (8) is fixedly connected to one end of the lead screw (9). A rotating shaft (15) is movably connected inside the connecting frame (8). A gripper (5) is connected to the surface of the rotating shaft (15). A movable block (4) is threadedly connected to the surface of the lead screw (9).

2. The quick-release and positioning tool for diesel generator injectors according to claim 1, characterized in that, The impact block (1) has a slot (14) inside, and a handle (7) is inserted into the slot (14). One end of the handle (7) is fixedly connected to a limiting post (18), and the surface of the limiting post (18) is engaged with the inside of the slot (14).

3. The quick-release and positioning tool for diesel generator injectors according to claim 1, characterized in that, The top of the impact block (1) is threaded with a connector (13), and a bearing (12) is installed inside the connector (13). A rotating handle (6) is movably connected inside the bearing (12).

4. The quick-release and positioning tool for diesel generator set injectors according to claim 3, characterized in that, One end of the rotating handle (6) is fixedly connected to a sliding block (20), and the connector (13) has a groove (19) inside, and the inner surface of the groove (19) is slidably connected to the surface of the sliding block (20).

5. The quick-release and positioning tool for diesel generator injectors according to claim 1, characterized in that, The number of grippers (5) is two sets, and the positions of the two sets of grippers (5) correspond to each other. One side of the top of the two sets of grippers (5) is in contact with the surface of the movable block (4).

6. The quick-release and positioning tool for diesel generator injectors according to claim 1, characterized in that, A slot (17) is provided at one end of the bottom of the gripper (5), and inclined surfaces (16) are provided on both sides of the bottom of the gripper (5).