A quick-release fuel injection pump for a diesel engine

Abstract

The utility model discloses a diesel engine quick detach type fuel injection pump relates to engine technical field, including fuel injection pump body, the fuel injection pump body is installed on the upper surface of L type carrier plate, the bottom surface of L type carrier plate is provided with L type bottom plate, the equidistance setting of the rectangular groove that L type bottom plate is close to L type carrier plate one side is set up in baffle, the rectangular frame is inserted between two adjacent baffle, one side of rectangular frame and L type carrier plate fixed connection, the inside of rectangular frame is inserted with U type rod, the baffle is used for the blocking of U type rod and restricts the position of L type carrier plate, when disassembling, only need to pull the pull plate, make the hollow board from the position slot slide, can pull U type rod and separate rectangular frame, then push L type carrier plate, make T type board from T type groove slide, can complete the disassembly of fuel injection pump body, and the dismounting process of fuel injection pump body is greatly simplified.

Description

Technical Field

[0001] This utility model specifically relates to a quick-release fuel injection pump for diesel engines, belonging to the field of engine technology. Background Technology

[0002] In a diesel engine's operating system, the fuel injection pump plays a crucial role as a core component. Its primary responsibility is to precisely deliver fuel to the combustion chamber at specific pressures and flow rates. The operational status of the fuel injection pump directly affects the engine's power performance, fuel economy, and emissions standards. Any malfunction of the fuel injection pump can lead not only to a decrease in engine power and a surge in fuel consumption but also to excessive emissions, failing to meet environmental protection requirements. Therefore, ensuring the installation stability and ease of maintenance of the fuel injection pump remains a key focus within the industry.

[0003] Currently, most traditional diesel engine fuel injection pumps are installed using a direct bolt fixing method, which means that multiple bolts passing through the fuel injection pump housing and the engine block achieve a rigid connection. This connection method can, to a certain extent, ensure the installation firmness of the fuel injection pump and maintain relative stability during normal engine operation, reducing positional displacement caused by factors such as vibration.

[0004] However, this bolt-based installation method has significant drawbacks. When disassembling and maintaining the fuel injection pump, tightening and loosening the bolts requires specific tools such as torque wrenches and sockets. More importantly, some bolts are located in gaps between the engine block and other components due to their restricted installation positions. Operators need to repeatedly adjust the tool angle to barely reach the bolts, significantly increasing the difficulty of the operation. As a result, each disassembly and assembly often consumes a considerable amount of time, severely impacting the normal operating efficiency of the equipment. This drawback is even more pronounced in scenarios requiring emergency repairs to restore equipment operation.

[0005] Therefore, developing a new solution that can significantly improve the ease of disassembly and assembly while ensuring the stability of fuel injection pump installation has become an urgent need for the industry and is of great practical significance for improving the overall operation and maintenance efficiency of diesel engine equipment. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies by providing a quick-release fuel injection pump for diesel engines.

[0007] This utility model achieves the above-mentioned objective through the following technical solution: a quick-release fuel injection pump for a diesel engine, comprising a fuel injection pump body, the fuel injection pump body being mounted on the upper surface of an L-shaped carrier plate, an L-shaped base plate being provided on the bottom surface of the L-shaped carrier plate, baffles being equidistantly arranged in a rectangular groove opened on the side of the L-shaped base plate near the L-shaped carrier plate, a rectangular frame being inserted between two adjacent baffles, one side of the rectangular frame being fixedly connected to the L-shaped carrier plate, a U-shaped rod being inserted inside the rectangular frame, and the baffles being used to block and restrict the position of the L-shaped carrier plate by the U-shaped rod.

[0008] By adopting the above technical solution, the cooperation between the rectangular frame and the U-shaped rod can quickly achieve the initial positioning of the L-shaped carrier plate and the L-shaped base plate, while the blocking effect of the baffle on the U-shaped rod can effectively prevent the L-shaped carrier plate from shifting under force, providing basic installation stability for the fuel injection pump body.

[0009] Preferably, a T-shaped plate is fixedly connected to the bottom surface of the L-shaped carrier plate, and the T-shaped plate is inserted into a T-shaped groove opened on the upper surface of the L-shaped base plate.

[0010] By adopting the above technical solution, the sliding fit between the T-shaped plate and the T-slot can not only guide the movement of the L-shaped carrier plate, ensuring that the L-shaped carrier plate moves along a fixed trajectory during installation and disassembly, but also limit the vertical displacement of the L-shaped carrier plate, further improving the overall structural stability of the fuel injection pump body after installation.

[0011] Preferably, the inner groove of the rectangular frame and the rod portion of the U-shaped rod are adapted to each other.

[0012] By adopting the above technical solution, the fit gap between the rectangular frame and the U-shaped rod can be reduced, avoiding shaking and abnormal noise caused by excessive gap when the fuel injection pump body is working. At the same time, it ensures that the U-shaped rod can be smoothly inserted into or pulled out of the rectangular frame, improving the ease of operation.

[0013] Preferably, a square frame is fixedly connected to the upper surface of the L-shaped base plate, and a hollow plate is inserted inside the square frame. One end of the hollow plate is inserted into a positioning slot opened on the surface of the U-shaped rod, and the square frame and the hollow plate are slidably connected.

[0014] By adopting the above technical solution, the cooperation between the hollow plate and the positioning slot can lock the position of the U-shaped rod, preventing the U-shaped rod from accidentally detaching from the rectangular frame during the operation of the fuel injection pump body, thereby ensuring the reliability of the connection between the L-shaped carrier plate and the L-shaped base plate. The rectangular frame provides stable support for the sliding of the hollow plate.

[0015] Preferably, the hollow plate has an inner plate and a spring inside. The inner plate is fixedly connected to the inside of the square frame and slidably connected to the inside of the hollow plate. The two ends of the spring are fixedly connected to the inner plate and the hollow plate, respectively.

[0016] By adopting the above technical solution, the elastic force of the spring can always push the hollow plate to move in the direction of the U-shaped rod, ensuring that the hollow plate and the positioning slot maintain a tight fit. Even under conditions such as engine vibration, the hollow plate can be prevented from accidentally dislodging from the positioning slot, thus enhancing the stability of the locking structure.

[0017] Preferably, a pull plate is fixedly connected to the surface of the hollow plate.

[0018] By adopting the above technical solution, the pull plate provides operators with a convenient point of force application. By pulling the pull plate, the hollow plate can be easily driven to overcome the elasticity of the spring and slide, so that the hollow plate can be quickly disengaged from the positioning slot, simplifying the unlocking operation steps and improving the efficiency of disassembling the fuel injection pump body.

[0019] Preferably, the surface of the L-shaped base plate has multiple through holes for mounting on the diesel engine with bolts.

[0020] By adopting the above technical solution, the setting of multiple through holes can be flexibly adjusted and fixed according to the mounting hole positions of different diesel engines, ensuring that the L-shaped base plate can be firmly connected to the engine block, providing a stable mounting foundation for the entire fuel injection pump structure, and avoiding abnormal operation of the fuel injection pump body due to unstable installation.

[0021] Preferably, the fuel injection pump body and the L-shaped carrier plate are fixedly connected by bolts.

[0022] By adopting the above technical solution, the bolt connection method can not only ensure the firmness of the connection between the fuel injection pump body and the L-shaped carrier plate and prevent the fuel injection pump body from being displaced during operation, but also facilitate disassembly when the fuel injection pump body needs to be repaired or replaced separately, thus taking into account both connection reliability and maintenance convenience.

[0023] The beneficial effects of this utility model are as follows: This quick-release fuel injection pump for diesel engines, through the cooperation structure of the L-shaped carrier plate and the L-shaped base plate, allows the fuel injection pump body to be stably installed on the diesel engine. The T-shaped plate is inserted into the T-shaped groove, providing lateral restraint for the overall structure and effectively preventing the L-shaped carrier plate from shifting in the horizontal direction. The rectangular frame is inserted between adjacent baffles, and the U-shaped rod is inserted into the rectangular frame. Under the blocking action of the baffles, the position of the L-shaped carrier plate is further restricted. At the same time, under the action of the elastic potential energy of the spring, the hollow plate is inserted into the positioning slot of the U-shaped rod, which realizes the fixation of the position of the U-shaped rod. The multiple restraint structures work together to ensure that the fuel injection pump body is firmly connected to the diesel engine, avoiding the fuel injection pump from loosening due to vibration and other factors when the engine is working, and ensuring the stability and accuracy of fuel injection.

[0024] During disassembly, simply pull the pull plate to slide the hollow plate out of the positioning slot, then pull the U-shaped rod to detach it from the rectangular frame. Next, push the L-shaped carrier plate to slide the T-shaped plate out of the T-slot, thus completing the disassembly of the fuel injection pump body. The entire process requires no complicated tools and is simple and quick to operate. During installation, simply follow the reverse steps to achieve quick fixation. This convenient disassembly and assembly method significantly shortens the maintenance and replacement time of the fuel injection pump, greatly simplifies the disassembly and assembly process of the fuel injection pump body, improves the efficiency of maintenance work, and reduces labor costs.

[0025] High adaptability: The L-shaped base plate, with multiple through holes on its surface, can be flexibly installed on different models of diesel engines using bolts, enhancing the equipment's adaptability. The inner groove of the rectangular frame matches the rod of the U-shaped rod, ensuring the precision of the fit and reducing the shaking caused by the fit gap. The fuel injection pump body and the L-shaped carrier plate are fixedly connected by bolts, making it easy to replace different specifications of fuel injection pump bodies according to actual needs. The overall structural design ensures the stability of the connection while also possessing a certain degree of flexibility and versatility. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0027] Figure 2 This is a schematic diagram of the structure of the T-shaped plate and the L-shaped carrier plate in this utility model;

[0028] Figure 3 This is a schematic diagram of the L-shaped base plate and baffle in this utility model;

[0029] Figure 4 This is a schematic diagram of the structure of the L-shaped base plate and the U-shaped rod in this utility model;

[0030] Figure 5 This utility model Figure 4 Sectional view at point AA;

[0031] Figure 6 This utility model Figure 5 Enlarged view of point A in the middle;

[0032] Figure 7 This is a schematic diagram of the structure of the spring and the hollow plate in this utility model;

[0033] Figure 8 This is a schematic diagram of the structure of the L-shaped carrier plate and the rectangular frame in this utility model;

[0034] In the diagram: 1. Fuel injection pump body; 2. L-shaped carrier plate; 3. L-shaped base plate; 4. T-shaped plate; 5. Rectangular groove; 6. Baffle; 7. Rectangular frame; 8. U-shaped rod; 9. Square frame; 10. Positioning slot; 11. Hollow plate; 12. Pull plate; 13. Spring; 14. Inner plate; 15. T-shaped groove. Detailed Implementation

[0035] 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.

[0036] Please see Figures 1-8 As shown, a quick-release fuel injection pump for a diesel engine includes a fuel injection pump body 1, which is mounted on the upper surface of an L-shaped carrier plate 2. An L-shaped base plate 3 is provided on the bottom surface of the L-shaped carrier plate 2. Baffles 6 are equidistantly arranged in a rectangular groove 5 opened on the side of the L-shaped base plate 3 near the L-shaped carrier plate 2. A rectangular frame 7 is inserted between two adjacent baffles 6. One side of the rectangular frame 7 is fixedly connected to the L-shaped carrier plate 2. A U-shaped rod 8 is inserted inside the rectangular frame 7. The baffles 6 are used to block and restrict the position of the L-shaped carrier plate 2 by blocking the U-shaped rod 8. The cooperation between the rectangular frame 7 and the U-shaped rod 8 can quickly achieve the initial positioning of the L-shaped carrier plate 2 and the L-shaped base plate 3. The blocking effect of the baffles 6 on the U-shaped rod 8 can effectively prevent the L-shaped carrier plate 2 from displacing under force, providing basic installation stability for the fuel injection pump body 1.

[0037] The bottom surface of the L-shaped carrier plate 2 is fixedly connected to a T-shaped plate 4. The T-shaped plate 4 is inserted into the T-shaped groove 15 opened on the upper surface of the L-shaped base plate 3. The sliding fit between the T-shaped plate 4 and the T-shaped groove 15 can not only guide the movement of the L-shaped carrier plate 2 and ensure that the L-shaped carrier plate 2 moves along a fixed trajectory during installation and disassembly, but also limit the vertical displacement of the L-shaped carrier plate 2, further improving the overall structural stability of the fuel injection pump body 1 after installation.

[0038] Preferably, the inner groove of the rectangular frame 7 and the rod of the U-shaped rod 8 are adapted to each other, which can reduce the fitting gap between the rectangular frame 7 and the U-shaped rod 8, avoid the shaking and abnormal noise caused by the excessive gap when the fuel injection pump body 1 is working, and at the same time ensure that the U-shaped rod 8 can be inserted into or pulled out of the rectangular frame 7 smoothly, thus improving the ease of operation.

[0039] A square frame 9 is fixedly connected to the upper surface of the L-shaped base plate 3. A hollow plate 11 is inserted inside the square frame 9. One end of the hollow plate 11 is inserted into a positioning slot 10 opened on the surface of the U-shaped rod 8. The square frame 9 and the hollow plate 11 are slidably connected. The cooperation between the hollow plate 11 and the positioning slot 10 can lock the position of the U-shaped rod 8, preventing the U-shaped rod 8 from accidentally disengaging from the rectangular frame 7 during the operation of the fuel injection pump body 1, thereby ensuring the reliability of the connection between the L-shaped carrier plate 2 and the L-shaped base plate 3. The square frame 9 provides stable support for the sliding of the hollow plate 11.

[0040] The hollow plate 11 has an inner plate 14 and a spring 13 inside. The inner plate 14 is fixedly connected to the inside of the square frame 9 and slidably connected to the inside of the hollow plate 11. The two ends of the spring 13 are fixedly connected to the inner plate 14 and the hollow plate 11 respectively. The elastic force of the spring 13 can always push the hollow plate 11 to move towards the U-shaped rod 8, ensuring that the hollow plate 11 and the positioning slot 10 maintain a tight fit. Even under conditions such as engine vibration, the hollow plate 11 can be prevented from accidentally dislodging from the positioning slot 10, thus enhancing the stability of the locking structure.

[0041] Preferably, a pull plate 12 is fixedly connected to the surface of the hollow plate 11. The pull plate 12 provides a convenient point of force application for the operator. By pulling the pull plate 12, the hollow plate 11 can be easily driven to overcome the elastic force of the spring 13 and slide, so that the hollow plate 11 can quickly disengage from the positioning slot 10, simplifying the unlocking operation steps and improving the efficiency of disassembling the fuel injection pump body 1.

[0042] The L-shaped base plate 3 has multiple through holes on its surface for bolt mounting on the diesel engine. The multiple through holes can be flexibly adjusted to fix the position according to the mounting hole positions of different diesel engines, ensuring that the L-shaped base plate 3 can be firmly connected to the engine block, providing a stable mounting base for the entire fuel injection pump structure, and avoiding abnormal operation of the fuel injection pump body 1 due to unstable installation.

[0043] The fuel injection pump body 1 and the L-shaped carrier plate 2 are fixedly connected by bolts. The bolt connection method can not only ensure the firmness of the connection between the fuel injection pump body 1 and the L-shaped carrier plate 2 and prevent the relative displacement of the fuel injection pump body 1 during operation, but also facilitate disassembly when the fuel injection pump body 1 needs to be repaired or replaced separately, thus taking into account both connection reliability and maintenance convenience.

[0044] Working principle: The L-shaped base plate 3 is bolted to the diesel engine, the fuel injection pump body 1 is bolted to the L-shaped carrier plate 2, the T-shaped plate 4 is inserted into the T-shaped groove 15, and the rectangular frame 7 is inserted between two adjacent baffles 6. By inserting the U-shaped rod 8 into the rectangular frame 7, the connection between the fuel injection pump body 1 and the diesel engine can be achieved under the obstruction of the baffle 6. Under the action of the elastic potential energy of the spring 13, the hollow plate 11 can be inserted into the positioning slot 10, thereby fixing the position of the U-shaped rod 8, that is, ensuring the firmness of the connection between the fuel injection pump body 1 and the diesel engine.

[0045] When it is necessary to disassemble the fuel injection pump body 1, pull the pull plate 12 to make the hollow plate 11 slide inside the square frame 9. When the hollow plate 11 slides out from the inside of the positioning slot 10, the U-shaped rod 8 can be pulled upward until the U-shaped rod 8 slides out from the inside of the rectangular frame 7. At this time, the L-shaped carrier plate 2 can slide on the surface of the L-shaped base plate 3. The movement of the L-shaped carrier plate 2 drives the T-shaped plate 4 to slide inside the T-shaped groove 15 until the T-shaped plate 4 slides out from the inside of the T-shaped groove 15. At this time, the disassembly of the fuel injection pump body 1 from the diesel engine can be completed, improving the convenience of the fuel injection pump body 1 disassembly process.

[0046] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0047] 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 quick-release fuel injection pump for a diesel engine, comprising a fuel injection pump body (1), characterized in that: The fuel injection pump body (1) is installed on the upper surface of the L-shaped carrier plate (2). The bottom surface of the L-shaped carrier plate (2) is provided with an L-shaped base plate (3). The L-shaped base plate (3) is provided with baffles (6) at equal intervals in a rectangular groove (5) opened on the side of the L-shaped base plate (3) near the L-shaped carrier plate (2). A rectangular frame (7) is inserted between two adjacent baffles (6). One side of the rectangular frame (7) is fixedly connected to the L-shaped carrier plate (2). A U-shaped rod (8) is inserted inside the rectangular frame (7). The baffles (6) are used to block and restrict the position of the L-shaped carrier plate (2) by the U-shaped rod (8).

2. The quick-release fuel injection pump for diesel engines as described in claim 1, characterized in that: The bottom surface of the L-shaped carrier plate (2) is fixedly connected to a T-shaped plate (4), and the T-shaped plate (4) is inserted into a T-shaped groove (15) opened on the upper surface of the L-shaped base plate (3).

3. The quick-release fuel injection pump for diesel engines as described in claim 1, characterized in that: The inner groove of the rectangular frame (7) is adapted to the rod portion of the U-shaped rod (8).

4. The quick-release fuel injection pump for diesel engines as described in claim 1, characterized in that: A square frame (9) is fixedly connected to the upper surface of the L-shaped base plate (3). A hollow plate (11) is inserted inside the square frame (9). One end of the hollow plate (11) is inserted into a positioning slot (10) opened on the surface of the U-shaped rod (8). The square frame (9) and the hollow plate (11) are slidably connected.

5. The quick-release fuel injection pump for diesel engines as described in claim 4, characterized in that: The hollow plate (11) is provided with an inner plate (14) and a spring (13). The inner plate (14) is fixedly connected to the inside of the square frame (9) and slidably connected to the inside of the hollow plate (11). The two ends of the spring (13) are fixedly connected to the inner plate (14) and the hollow plate (11) respectively.

6. The quick-release fuel injection pump for diesel engines as described in claim 4, characterized in that: A pull plate (12) is fixedly connected to the surface of the hollow plate (11).

7. The quick-release fuel injection pump for diesel engines as described in claim 1, characterized in that: The L-shaped base plate (3) has multiple through holes on its surface for mounting on a diesel engine with bolts.

8. The quick-release fuel injection pump for diesel engines as described in claim 1, characterized in that: The fuel injection pump body (1) and the L-shaped carrier plate (2) are fixedly connected by bolts.

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