Oil sprayer dismounting tool

Abstract

The utility model discloses a fuel injector dismounting tool, which relates to the technical field of engines, and comprises a dismounting mechanism, the dismounting mechanism comprises a sleeve, a connecting arm and a grab handle, the connecting arm is fixedly connected between the sleeve and the grab handle, a clamping mechanism is arranged in the sleeve, a power mechanism is arranged on the grab handle, and the power mechanism is connected with the connecting arm. The clamping mechanism comprises a two-way lead screw rotationally connected between the inner walls of the two sides of the sleeve, sliding blocks are in threaded connection with the outer walls of the two sides of the two-way lead screw correspondingly, connecting plates are fixedly connected with the outer walls of the same sides of the two sliding blocks correspondingly, and clamping plates are fixedly connected with the other ends of the two connecting plates correspondingly. By arranging the sleeve, the connecting arm, the grab handle, the two-way lead screw, the sliding block, the connecting plate and the clamping plate, the effect of disassembling a nut without the help of a wrench is achieved, and the problems that an existing oil sprayer disassembling tool still needs the help of the wrench when disassembling an oil sprayer, and consequently disassembling is troublesome and inconvenient are solved.

Description

Technical Field

[0001] This utility model relates to the field of engine technology, and in particular to a fuel injector disassembly tool. Background Technology

[0002] During use, fuel injectors may accumulate dirt and become clogged, or develop carbon deposits, damage, or leaks. Therefore, it is necessary to disassemble the fuel injectors regularly for inspection and maintenance, and clean them to ensure that the fuel injectors work properly.

[0003] The existing patent with publication number CN209239933U discloses a tool for disassembling diesel engine injectors. This utility model uses a screw sleeve (3) that is movably set inside a sleeve (1). The screw sleeve is connected to the injector to be disassembled, which can conveniently and quickly disassemble the injector, while avoiding damage to the injector. This utility model has the characteristics of simple structure, convenient use, and low cost, and is suitable for widespread promotion and application.

[0004] The disassembly tool in the aforementioned patent still requires a wrench to disassemble the injector and cannot be disassembled directly, making it cumbersome and inconvenient to use. Based on this, we propose an improved injector disassembly fixture. Utility Model Content

[0005] The main purpose of this utility model is to provide an injector disassembly tooling that can effectively solve the technical problem in the background art that the existing injector disassembly tooling still requires the use of a wrench when disassembling the injector, which makes the disassembly process more troublesome and inconvenient.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A fuel injector disassembly fixture includes a disassembly mechanism, which includes a sleeve, a connecting arm, and a handle. The connecting arm is fixedly connected between the sleeve and the handle. A clamping mechanism is provided inside the sleeve, and a power mechanism is provided on the handle.

[0008] The clamping mechanism includes a bidirectional lead screw rotatably connected between the inner walls of the two sides of the sleeve, and a slider is threadedly connected to the outer walls of both sides of the bidirectional lead screw. A connecting plate is fixedly connected to the outer wall of the same side of the two sliders, and a clamping plate is fixedly connected to the other end of the two connecting plates.

[0009] Preferably, a sliding rod is fixedly connected between the inner walls of the two sides of the sleeve, and both connecting plates are slidably sleeved on the outer wall of the sliding rod.

[0010] Preferably, the power mechanism includes a drive shaft, with connecting shafts fixedly connected to both ends of the drive shaft. Mounting sleeves are fixedly installed near both ends inside the handle. A spring is movably fitted inside each of the two mounting sleeves. One end of each of the two connecting shafts passes through the two mounting sleeves and is fixedly connected to one end of the spring. Gears are fixedly fitted onto the outer walls of each of the two connecting shafts. Two toothed plates are slidably fitted onto the handle, and the two toothed plates mesh with the two gears respectively.

[0011] Preferably, a transmission mechanism is fixedly sleeved on the middle outer wall of the drive shaft and the bidirectional lead screw. The transmission mechanism includes two synchronous pulleys and a synchronous belt sleeved on the outer wall of the two synchronous pulleys. The synchronous belt meshes with the two synchronous pulleys, and the two synchronous pulleys are respectively fixedly sleeved on the outer wall of the bidirectional lead screw and the drive shaft.

[0012] Preferably, each of the two toothed plates is slidably sleeved with a guide rod, and the ends of the two guide rods away from the toothed plates are fixedly connected to the inner wall of the handle. The ends of the two toothed plates away from the two guide rods pass through the handle and are fixedly connected to a pressing plate.

[0013] Preferably, the ends of the two mainsprings furthest from the connecting shaft are fixedly connected to the inner wall of the mounting sleeve, and the two sliders are symmetrically arranged about the middle of the bidirectional lead screw.

[0014] The beneficial effects of this utility model are as follows:

[0015] This injector disassembly fixture, by setting up a sleeve, connecting arm, handle, double-acting screw, slider, connecting plate and clamping plate structure, can directly connect to the upper end of the injector through the sleeve, and then use the rotation of the double-acting screw to control the relative movement of the two sliders, and then drive the clamping plate to clamp on the smooth outer wall of the nut through the connecting plate. Then, with the connection relationship of the long connecting arm and handle, the nut on the injector can be loosened with great effort without the need for a wrench, which is convenient and time-saving to use.

[0016] This injector disassembly fixture, through the coordinated arrangement of a drive shaft, connecting shaft, spring, gear, toothed plate, pressing plate, guide rod, and transmission mechanism, allows for convenient and easy operation. When held by hand, pressing the pressing plate with two fingers moves the toothed plate, which in turn rotates the gear. This, in turn, drives the drive shaft to rotate via the connecting shaft, and the transmission mechanism provides power for the rotation of the bidirectional lead screw. The spring structure assists the connecting shaft in resetting the drive shaft, causing the bidirectional lead screw to flip and ultimately resetting the two clamping plates. It is convenient, easy to use, and practical. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the external structure of an injector disassembly fixture according to the present invention.

[0018] Figure 2 This is a schematic diagram of the internal structure of an injector disassembly fixture according to the present invention;

[0019] Figure 3 This is a schematic diagram of the internal structure of the mounting sleeve of the injector disassembly tool of this utility model;

[0020] Figure 4 This is a schematic diagram of the internal structure of the toothed plate of an injector disassembly tool according to this utility model.

[0021] In the diagram: 1. Disassembly mechanism; 11. Sleeve; 12. Connecting arm; 13. Handle; 2. Clamping mechanism; 21. Two-way lead screw; 22. Slider; 23. Connecting plate; 24. Clamping plate; 25. Slide rod; 3. Power mechanism; 31. Drive shaft; 32. Connecting shaft; 33. Mounting sleeve; 34. Spring; 35. Gear; 36. Gear plate; 37. Pressing plate; 38. Guide rod; 4. Transmission mechanism. Detailed Implementation

[0022] 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.

[0023] Example 1

[0024] Combination Figures 1-4 A fuel injector disassembly fixture includes a disassembly mechanism 1. The disassembly mechanism 1 includes a sleeve 11, a connecting arm 12 and a handle 13. The connecting arm 12 is fixedly connected between the sleeve 11 and the handle 13. A clamping mechanism 2 is provided inside the sleeve 11, and a power mechanism 3 is provided on the handle 13.

[0025] The clamping mechanism 2 includes a bidirectional lead screw 21 rotatably connected between the inner walls of both sides of the sleeve 11, and a slider 22 is threadedly connected to the outer walls of both sides of the bidirectional lead screw 21. A connecting plate 23 is fixedly connected to the outer wall of the same side of the two sliders 22, and a clamping plate 24 is fixedly connected to the other end of the two connecting plates 23.

[0026] See Figure 2 Furthermore, it is found that a sliding rod 25 is fixedly connected between the inner walls of both sides of the sleeve 11, and both connecting plates 23 are slidably sleeved on the outer wall of the sliding rod 25.

[0027] Specifically, by sliding the connecting plate 23 on the outer wall of the slide bar 25, the slider 22 can be limited to prevent it from rotating with the bidirectional lead screw 21, thereby improving the stability of the clamping plate 24 when it moves.

[0028] Example 2

[0029] See Figures 2-4 Furthermore, based on Embodiment 1, the power mechanism 3 includes a drive shaft 31, with connecting shafts 32 fixedly connected to both ends of the drive shaft 31. Mounting sleeves 33 are fixedly installed near both ends of the handle 13, and springs 34 are movably sleeved in both mounting sleeves 33. One end of each of the two connecting shafts 32 passes through the two mounting sleeves 33 and is fixedly connected to one end of the springs 34. Gears 35 are fixedly sleeved on the outer walls of the two connecting shafts 32. Two toothed plates 36 are slidably sleeved on the handle 13, and the two toothed plates 36 mesh with the two gears 35 respectively.

[0030] A transmission mechanism 4 is fixedly sleeved on the middle outer wall of the drive shaft 31 and the bidirectional lead screw 21. The transmission mechanism 4 includes two synchronous pulleys and a synchronous belt sleeved on the outer wall of the two synchronous pulleys. The synchronous belt meshes with the two synchronous pulleys. The two synchronous pulleys are respectively fixedly sleeved on the outer wall of the bidirectional lead screw 21 and the drive shaft 31. Guide rods 38 are slidably sleeved inside the two toothed plates 36. The ends of the two guide rods 38 away from the toothed plates 36 are fixedly connected to the inner wall of the handle 13. The ends of the two toothed plates 36 away from the two guide rods 38 pass through the handle 13 and are fixedly connected to the pressing plate 37. The ends of the two springs 34 away from the connecting shaft 32 are fixedly connected to the inner wall of the mounting sleeve 33. The two sliders 22 are symmetrically arranged about the middle of the bidirectional lead screw 21.

[0031] Specifically, when holding the handle 13, pressing the pressure plate 37 with two fingers moves the toothed plate 36, which in turn rotates the gear 35. This, in turn, drives the drive shaft 31 to rotate via the connecting shaft 32. With the synchronous belt driving the two synchronous pulleys to rotate synchronously, the rotation of the drive shaft 31 is transmitted to the bidirectional lead screw 21 through the transmission mechanism 4, thus providing power for the rotation of the bidirectional lead screw 21. At the same time, the rotation of the connecting shaft 32 also causes the spring 34 to tighten. Therefore, when the pressure plate 37 is released, the spring 34 will reset, thereby resetting the above mechanism. The use of the spring 34 instead of directly attaching a spring to the outer wall of the toothed plate 36 is to maximize the distance between the pressure plate 37 and the handle 13, increase the stroke of the toothed plate 36, and thus increase the number of rotations of the gear 35. Therefore, the diameter of the gear 35 is also relatively small, ensuring that the two clamping plates 24 have a sufficiently close moving distance to achieve the clamping function.

[0032] In actual operation, the sleeve 11 is fitted onto the upper part of the injector. Then, the pressing plate 37 is moved by pressing with two fingers, which in turn causes the toothed plate 36 to slide linearly under the guidance of the guide rod 38, thereby driving the gear 35 to rotate, which in turn drives the connecting shaft 32 to rotate, which in turn drives the drive shaft 31 to rotate. This, in turn, drives the bidirectional lead screw 21 to rotate through the transmission mechanism 4, controlling the relative movement of the two sliders 22. This, in turn, drives the two clamping plates 24 to move relative to each other through the connecting plate 23, clamping them on the smooth surface of the injector nut. Then, the sleeve 11 is rotated through the connecting arm 12 and the handle 13, which allows the nut to be loosened and disassembled without the aid of a wrench. At the same time, when removing the injector, the injector can be pulled out by clamping it with the clamping plate 24. The operation is convenient and easy.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A fuel injector disassembly fixture, comprising a disassembly mechanism (1), characterized in that: The disassembly mechanism (1) includes a sleeve (11), a connecting arm (12) and a handle (13). The connecting arm (12) is fixedly connected between the sleeve (11) and the handle (13). A clamping mechanism (2) is provided inside the sleeve (11), and a power mechanism (3) is provided on the handle (13). The clamping mechanism (2) includes a bidirectional lead screw (21) rotatably connected between the inner walls of the two sides of the sleeve (11), and a slider (22) is threadedly connected to the outer walls of both sides of the bidirectional lead screw (21). A connecting plate (23) is fixedly connected to the outer wall of the same side of the two sliders (22), and a clamping plate (24) is fixedly connected to the other end of the two connecting plates (23).

2. The injector disassembly fixture according to claim 1, characterized in that: A sliding rod (25) is fixedly connected between the inner walls of the two sides of the sleeve (11), and the two connecting plates (23) are slidably sleeved on the outer wall of the sliding rod (25).

3. The injector disassembly fixture according to claim 1, characterized in that: The power mechanism (3) includes a drive shaft (31), both ends of which are fixedly connected to a connecting shaft (32). The handle (13) is fixedly provided with a mounting sleeve (33) near both ends. A spring (34) is movably sleeved in both mounting sleeves (33). One end of each connecting shaft (32) passes through the two mounting sleeves (33) and is fixedly connected to one end of the spring (34). Gears (35) are fixedly sleeved on the outer wall of each connecting shaft (32). Two toothed plates (36) are slidably sleeved on the handle (13). The two toothed plates (36) mesh with the two gears (35) respectively.

4. The injector disassembly fixture according to claim 3, characterized in that: A transmission mechanism (4) is fixedly sleeved on the middle outer wall of the drive shaft (31) and the bidirectional lead screw (21). The transmission mechanism (4) includes two synchronous pulleys and a synchronous belt sleeved on the outer wall of the two synchronous pulleys. The synchronous belt meshes with the two synchronous pulleys. The two synchronous pulleys are respectively fixedly sleeved on the outer wall of the bidirectional lead screw (21) and the drive shaft (31).

5. The injector disassembly fixture according to claim 3, characterized in that: Guide rods (38) are slidably sleeved inside both of the toothed plates (36). The ends of the two guide rods (38) away from the toothed plates (36) are fixedly connected to the inner wall of the handle (13). The ends of the two toothed plates (36) away from the two guide rods (38) pass through the handle (13) and are fixedly connected to a pressing plate (37).

6. The injector disassembly fixture according to claim 3, characterized in that: The ends of the two springs (34) away from the connecting shaft (32) are fixedly connected to the inner wall of the mounting sleeve (33), and the two sliders (22) are symmetrically arranged about the middle of the bidirectional lead screw (21).

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