Multifunctional disassembling tool for oil sprayer of engine

Abstract

A multifunctional engine fuel injector disassembling tool belongs to the technical field of engine disassembling tools and comprises a sliding rod, a corresponding sliding weight is sleeved on the sliding rod, the sliding rod and the sliding weight are connected in a sliding mode, a cross beam is arranged at the upper end of the sliding rod, a pair of corresponding pull rods are arranged on the cross beam, and the cross beam and the pull rods are connected in a sliding mode. The lower end of the sliding rod is provided with a detachably and fixedly connected connector. The multifunctional mobile phone is more diversified in function, wider in applicability, more convenient to carry and higher in usability.

Description

Technical Field

[0001] This utility model belongs to the technical field of engine disassembly tools, and in particular relates to a multi-functional engine injector disassembly tool. Background Technology

[0002] The fuel injector is a key component of the engine's fuel system. It is typically installed in the injector mounting hole within the engine cylinder. During operation, it injects gasoline into the cylinder for combustion. The fuel injector has a very compact structure and is a precision component requiring extremely high machining accuracy. Existing in high-temperature, high-pressure, and corrosive environments, it is highly susceptible to wear and corrosion, making it one of the most prone to failure components in the engine's fuel system. Therefore, it requires frequent inspection and maintenance. When repairing or inspecting the fuel injector, it needs to be removed from the mounting hole. Due to the tight fit between the injector and the mounting hole, and the significant pressure difference between the inside and outside of the cylinder, the injector is not easily removed. Traditional disassembly methods often involve forcibly prying it off the cylinder head using pry bars or Phillips screwdrivers. This method can easily damage or deform the injector, leading to fuel leaks.

[0003] Injector removal tools were invented to meet specific needs. However, most existing injector removal tools have limited functionality, only suitable for removing one type of injector. With technological advancements, the variety of engines has increased, and the types and models of injectors have grown accordingly. Different manufacturers and models of injectors vary in type and size. This not only results in a wide variety of injector removal tools, making them inconvenient to carry and use, but also, since injector maintenance is often performed alongside engine maintenance, the limited functionality of injector removal tools greatly restricts their use. Workers often need to carry additional maintenance and disassembly tools for disassembling other mechanical parts of the engine, thus increasing the amount of tools that need to be transported and the workload of the workers. Utility Model Content

[0004] The purpose of this utility model is to provide a multi-functional engine injector disassembly tool to solve the technical problems of existing injector disassembly tools having limited functionality and low applicability.

[0005] To achieve the above objectives, the specific technical solution of this utility model is as follows:

[0006] A multi-functional engine injector removal tool includes a slide bar with a corresponding sliding hammer mounted on it, the two being slidably connected. The upper end of the slide bar is provided with a crossbeam, and the crossbeam is provided with a pair of corresponding pull rods, which are slidably connected. The lower end of the slide bar is provided with a detachable and fixed connector.

[0007] Furthermore, a lower locking platform is provided between the slide rod and the connector, and the lower locking platform is detachably and fixedly connected to both the slide rod and the connector. An upper locking platform is fixedly connected to the upper end of the slide rod, and it is detachably and fixedly connected to the crossbeam through the upper locking platform. The outer diameters of both the upper and lower locking platforms are larger than the inner diameter of the slide hammer.

[0008] Furthermore, the axis of the crossbeam is perpendicular to the slide rod, and a connecting rod is fixedly connected to the lower side wall of the crossbeam, which is detachably and fixedly connected to the slide rod through the connecting rod.

[0009] Furthermore, the middle part of the pull rod is provided with a collar corresponding to the crossbeam. The collar is fitted onto the crossbeam, and the pull rod is detachably and slidably connected to the crossbeam through the collar. Connecting seats are provided on the front and rear side walls of the collar. A pair of lead screws are provided on the front and rear sides of the pull rod. The two lead screws are parallel and corresponding. The connecting seats are provided with mounting holes corresponding to the lead screws. The two pull rods are connected in series through the mounting holes of the corresponding connecting seats. The pull rod and the lead screws are detachably and fixedly connected.

[0010] Furthermore, one end of the lead screw is provided with a screw cap, and the mounting holes of the two connecting seats connected in series on the same lead screw are divided into a first hole and a second hole, wherein the mounting hole on the side closer to the screw cap is the first hole, and the mounting hole on the side farther from the screw cap is the second hole. The outer wall of the lead screw is provided with an external thread, and the second hole is provided with an internal thread corresponding to the lead screw. A rotatable sleeve is provided at the first hole, and the sleeve is fitted on the lead screw. Its inner wall is also provided with an internal thread corresponding to the lead screw.

[0011] Furthermore, the two ends of the pull rod are respectively provided with an inner pull head and an outer pull head, and the two pull rods are respectively installed on the crossbeams on the left and right sides of the slide rod, with the two pull rods mirroring each other along the center line.

[0012] This utility model of a multi-functional engine injector disassembly tool has more diversified functions, a wider range of applications, lower space requirements for storage and transportation, is more convenient to carry and use, saves more effort in transportation, and has higher usability. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This utility model Figure 1 The left view;

[0015] Figure 3 For the present utility model Figure 2 A sectional view along the AA direction;

[0016] Figure 4 For the present utility model Figure 1 Enlarged view of the internal structure at point B;

[0017] Figure 5This is an enlarged view of another structure of the connector in this utility model;

[0018] The markings in the diagram are as follows: 1. Slide rod; 11. Upper clamping platform; 12. Lower clamping platform; 2. Slide weight; 3. Crossbeam; 31. Pull rod; 32. Sleeve; 33. Collar; 34. Inner pull head; 35. Outer pull head; 36. Lead screw; 37. Lever cap; 38. Connecting seat; 39. Connecting rod; 4. Connecting head. Detailed Implementation

[0019] To better understand the purpose, structure, and function of this utility model, the following description, in conjunction with the accompanying drawings, provides a more detailed account of a multi-functional engine injector disassembly tool.

[0020] like Figure 1-4 As shown, this utility model's multifunctional engine injector disassembly tool includes a slide rod 1, a slide hammer 2, a crossbeam 3, and a pull rod 31. The slide hammer 2 is mounted on the slide rod 1, with its inner diameter corresponding to the outer diameter of the slide rod 1, and the two are slidably connected. The crossbeam 3 is detachably and fixedly installed on the upper end of the slide rod 1, and the axes of the two are perpendicular to each other. A pair of corresponding pull rods 31 are installed on the crossbeam 3, and the two are slidably connected. The lower end of the slide rod 1 is provided with a connector 4. During operation, the corresponding engine injector can be connected to the connector 4, and then, with the assistance of the slide hammer 2, the injector can be removed from the engine cylinder. Other engine components, such as the flywheel, can also be connected to the pull rod 31, and then removed with the assistance of the slide hammer 2.

[0021] Furthermore, the lower end of the slide rod 1 is provided with a lower retaining platform 12, which is located between the slide rod 1 and the connector 4. The lower end of the slide rod 1 is provided with an external thread, and the upper end of the lower retaining platform 12 is provided with a first platform hole. The first platform hole is provided with an internal thread corresponding to the external thread at the lower end of the slide rod 1. The lower retaining platform 12 and the slide rod 1 are detachably and fixedly connected through the corresponding threaded engagement. The bottom end of the lower retaining platform 12 is provided with a column, and the outer side wall of the column is provided with an external thread. The top end of the connector 4 is provided with a threaded hole corresponding to the column. The lower retaining platform 12 and the connector 4 are also detachably and fixedly connected through the corresponding threaded engagement. In this embodiment, the lower end of the connector 4 is provided with an external thread corresponding to the external injector. In use, the connector 4 and the corresponding external injector are fixedly connected by the threaded engagement. The upper end of the slide rod 1 is provided with an upper locking platform 11. The top end of the slide rod 1 is fixedly connected to the bottom of the upper locking platform 11. The slide rod 1 is connected to the crossbeam 3 through the upper locking platform 11. The outer diameters of the upper locking platform 11 and the lower locking platform 12 are both larger than the inner diameter of the slide hammer 2. This setting facilitates the replacement of the slide hammer 2 and avoids direct impact on the connector 4 and the crossbeam 3 when the slide hammer 2 slides, thereby reducing the probability of damage to both.

[0022] Furthermore, a connecting rod 39 is provided below the crossbeam 3. The top end of the connecting rod 39 is connected to the lower side wall of the crossbeam 3. The two are integrally formed and fixedly connected. The top of the upper mounting plate 11 is provided with a second mounting hole corresponding to the connecting rod 39. In this embodiment, the connecting rod 39 and the second mounting hole are detachably fixedly connected by corresponding threaded engagement. This setting makes it easier to disassemble and assemble the upper pull rod 31 of the crossbeam 3, reduces the space requirement of the injector disassembly tool, and makes it more convenient to carry and transport.

[0023] Furthermore, a collar 33 is provided in the middle of the pull rod 31. In this embodiment, the cross-section of the beam 3 is rectangular, and the inner ring of the collar 33 corresponds to the cross-section of the beam 3. The collar 33 is fitted onto the beam 3, and the two are slidably connected, so that the pull rod 31 can be detachably installed on the beam 3. Connecting seats 38 are provided on the front and rear side walls of the collar 33. The two corresponding pull rods 31 are respectively provided on the left and right sides of the slide rod 1, and the two are mirror images of each other along the center line. A pair of corresponding lead screws 36 are provided on the front and rear sides of the pull rod 31. The two lead screws 36 are parallel to each other. The connecting seats 38 are provided with mounting holes corresponding to the lead screws 36. The two pull rods 31 are connected in series through the mounting holes of the corresponding connecting seats 38 via the lead screws 36. One end of the lead screw 36 is provided with a lever cap 37. In this embodiment, the lever cap 37 is provided on the right end of the lead screw 36. The outer side wall of the lead screw 36 is provided with external threads. The right pull rod 31 of the slide rod 1 is close to the lever cap 37. The mounting hole on the connecting seat 38 is the first hole. A rotatable sleeve 32 is provided at the first hole. In this embodiment, an inner convex ring is provided on the inner side wall of the first hole, and an annular groove corresponding to the inner convex ring is provided on the outer side wall of the sleeve 32. The two cooperate with each other to prevent the sleeve 32 from coming out of the first hole. An internal thread corresponding to the lead screw 36 is provided on the inner side wall of the sleeve 32. The left end of the sleeve 32 extends outward from the first hole to form a rotating platform. The operator can rotate the sleeve 32 through the platform, thereby causing the corresponding pull rod 31 to move left and right on the lead screw 36. The mounting hole on the connecting seat 38 of the left pull rod 31 of the slide rod 1, which is far away from the lever cap 37, is the second hole. An internal thread corresponding to the lead screw 36 is provided in the second hole. The second hole and the lead screw 36 are connected by a corresponding threaded connection. The sleeve 32 allows the two pull rods 31 to move independently on the lead screw 36 without interfering with each other, improving the freedom and maneuverability of the pull rods 31 to move left and right.

[0024] Furthermore, each end of the pull rod 31 is provided with an inner pull head 34 and an outer pull head 35, and the inner pull heads 34 and outer pull heads 35 of the two pull rods 31 are corresponding on the same side of the crossbeam 3. In this embodiment, the two outer pull heads 35 are located at the top of the corresponding pull rod 31, and the two inner pull heads 34 are located at the bottom of the two pull rods 31. The two outer pull heads 35 are mirror images of each other along the center line of the two pull rods 31, and the two inner pull heads 34 are also mirror images of each other along the center line of the two pull rods 31. The positions of the inner pull heads 34 and outer pull heads 35 relative to the crossbeam 3 can be adjusted by removing the pull rod 31, flipping it, and reinstalling it on the crossbeam 3. When flipping, the two pull rods 31 need to be flipped synchronously.

[0025] Furthermore, the bottom end of connector 4 connects to an external fuel injector, and its shape can be customized in various specifications according to the needs of the external fuel injector, such as... Figure 5 As shown, there is another structure of connector 4, which is suitable for injectors with external threads at the top. The bottom end of connector 38 is provided with a bottom hole, and the bottom hole is provided with an internal thread corresponding to the external thread of the external injector. During operation, connector 4 is fixedly connected to the external injector through the bottom hole.

[0026] When in use, when it is necessary to disassemble the injector, the connector 4 is used for injector disassembly. The specific steps are as follows: First, select different models of connector 4 according to the needs of the injector. For injectors with threaded holes on the top, select the corresponding connector 4 with external threads on the bottom. For injectors with screws on the top, select the corresponding connector 4 with corresponding bottom holes on the bottom. Then, fix the connector 4 on the injector through the corresponding thread fit. Next, connect the other parts of the injector disassembly tool to the connector 4 through the lower clamp 12. At this time, the injector on the connector 4 can be removed from the engine cylinder by sliding the sliding hammer 2 in the opposite direction and the sliding rod 1 under the action of the sliding hammer 2. When it is necessary to disassemble other parts that are interference-fitted with the engine, taking the flywheel as an example, the end of the pull rod 31 is used to disassemble the flywheel on the engine equipment. The specific steps are as follows: First, according to the needs of the disassembled parts, select the corresponding end of the pull rod 31 facing the outside of the slide rod 1. The inner pull head 34 end of the pull rod 31 is used for disassembling parts with a pre-set inner pull hole at the end, and the outer pull head 35 end of the pull rod 31 is used for disassembling parts with a pre-reserved outer pull boss at the end. Then, adjust the distance between the two pull rods 31 through the lead screw 36 so that the outer end of the pull rod 31 is locked to the reserved end of the part to be disassembled. At this time, the slide hammer 2 can be slid in the opposite direction. Under the action of the slide hammer 2, the part at the end of the pull rod 31 is removed from the engine equipment through the slide rod 1.

[0027] This utility model of a multi-functional engine injector disassembly tool offers greater versatility. It is suitable for disassembling various types of injectors, as well as for disassembling multiple components that are interference-fitted on mechanical equipment. The detachable and fixed installation of multiple components reduces the space requirements for storage and transportation, making it more portable, easier to use, and less labor-intensive to transport.

[0028] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A multi-functional engine fuel injector dismounting tool, characterized by, It includes a slide rod (1), on which a corresponding slide hammer (2) is fitted and slidably connected. The upper end of the slide rod (1) is provided with a crossbeam (3), on which a pair of corresponding pull rods (31) are provided. The crossbeam (3) and the pull rods (31) are slidably connected. The lower end of the slide rod (1) is provided with a detachable and fixed connector (4).

2. The multi-functional engine injector removal tool of claim 1, wherein, A lower locking platform (12) is provided between the slide rod (1) and the connector (4). The lower locking platform (12) is detachably and fixedly connected to both the slide rod (1) and the connector (4). An upper locking platform (11) is fixedly connected to the upper end of the slide rod (1). The upper locking platform (11) is detachably and fixedly connected to the crossbeam (3). The outer diameters of both the upper locking platform (11) and the lower locking platform (12) are larger than the inner diameter of the slide hammer (2).

3. The multi-functional engine injector removal tool of claim 1, wherein, The axis of the crossbeam (3) is perpendicular to the slide rod (1). A connecting rod (39) is fixedly connected to the lower side wall of the crossbeam (3), which is detachably and fixedly connected to the slide rod (1) through the connecting rod (39).

4. The multi-functional engine injector removal tool of claim 1, wherein, The middle part of the pull rod (31) is provided with a collar (33) corresponding to the crossbeam (3). The collar (33) is fitted on the crossbeam (3). The pull rod (31) is detachably and slidably connected to the crossbeam (3) through the collar (33). The front and rear side walls of the collar (33) are provided with connecting seats (38). A pair of lead screws (36) are provided on the front and rear sides of the pull rod (31). The two lead screws (36) are parallel and corresponding. The connecting seats (38) are provided with mounting holes corresponding to the lead screws (36). The two pull rods (31) are connected in series through the mounting holes of the corresponding connecting seats (38) via the lead screws (36). The pull rod (31) and the lead screws (36) are detachably and fixedly connected.

5. The multi-functional engine injector removal tool of claim 4, wherein, One end of the lead screw (36) is provided with a screw cap (37). The mounting holes of the two connecting seats (38) connected in series on the same lead screw (36) are divided into a first hole and a second hole. The mounting hole on the side closer to the screw cap (37) is the first hole, and the mounting hole on the side farther from the screw cap (37) is the second hole. The outer wall of the lead screw (36) is provided with an external thread, and the second hole is provided with an internal thread corresponding to the lead screw (36). A rotatable sleeve (32) is provided at the first hole. The sleeve (32) is fitted on the lead screw (36), and its inner wall is also provided with an internal thread corresponding to the lead screw (36). One side of the sleeve (32) extends out of the first hole to form a rotating platform.

6. The multi-functional engine injector removal tool of claim 1, wherein, The two ends of the pull rod (31) are respectively provided with an inner pull head (34) and an outer pull head (35). The two pull rods (31) are respectively installed on the crossbeams (3) on the left and right sides of the slide rod (1). The two pull rods (31) are mirror images of each other along the center line.

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