Fuel injection nozzle removal tool

Abstract

To provide a more stable and efficient fuel injection nozzle removal tool. [Solution] The fuel injection nozzle removal tool is used to clamp and remove a fuel injection nozzle 1, and has a main body 10 having a first clamp claw 11, a second clamp claw 12, and a support portion 13. The first clamp claw 11 and the second clamp claw 12 are connected to both ends of the support portion 13 in the Z-axis direction and further extend in the X-axis direction, and the first clamp claw 11, the second clamp claw 12, and the support portion 13 cooperate to form a storage space 14 that fixes the fuel injection nozzle 1. The X-axis direction is perpendicular to the Z-axis direction, and the fuel injection nozzle 1 is securely gripped via the storage space 14 formed by the first clamp claw 11, the second clamp claw 12, and the support portion 13. This reduces the risk of damage to the fuel injection nozzle and the engine during the process of removing the fuel injection nozzle 1 from the engine, improves the efficiency of the nozzle removal work, and shortens maintenance time.

Description

[Technical Field]

[0001] The present invention relates to a removal tool, and more particularly to a fuel injection nozzle removal tool. [Background technology]

[0002] In the prior art, methods for removing fuel injection nozzles have mainly relied on striking with a hammer, that is, a method has been adopted in which a dedicated removal tool is used to strike and gradually remove the injection nozzle. However, fuel injection nozzles are typically inserted about 20 cm deep into the engine, and after extended use, they become firmly attached to the engine due to factors such as soot accumulation, resinous adsorption, and corrosion due to moisture, making them difficult to remove.

[0003] Existing methods are time-consuming, typically requiring several hours or even longer of hammering to loosen and disconnect the fuel injector nozzle from the engine, slowing down maintenance work. Furthermore, if the fuel injection nozzle is forcibly pulled out using a greater mechanical force, the fuel injection nozzle itself may be damaged, and there is even a possibility that the nozzle may break off and part of it may remain inside the engine.

[0004] Furthermore, if the operation is performed incorrectly, there is a risk of damaging the engine itself. Summary of the Invention [Problem to be solved by the invention]

[0005] In the above-mentioned prior art, the method of removing the fuel injection nozzle mainly relies on striking with a hammer, but this method has the drawback that it becomes difficult to remove after a long period of use, and there is also a possibility that the nozzle may break and part of it may remain inside the engine, and if the operation is performed incorrectly, there is a risk of damaging the engine body. [Means for solving the problem]

[0006] The present invention relates to a fuel injection nozzle removal tool that solves the problems of the conventional fuel injection nozzle removal method, such as reduced work efficiency and the risk of damaging the fuel injection nozzle.

[0007] The fuel injection nozzle removal tool of this invention is used to clamp and remove the fuel injection nozzle. The fuel injection nozzle removal tool has a body, a first clamp claw, a second clamp claw, and a support portion, The first clamp claw and the second clamp claw are connected to both ends of the support part in the Z-axis direction and further extend in the X-axis direction, As a result, the first clamp claw, the second clamp claw and the support portion cooperate to form an accommodation space, which fixes the fuel injection nozzle, and the X-axis direction is perpendicular to the Z-axis direction.

[0008] As described above, the effect of the present invention is to provide a more stable and efficient fuel injection nozzle removal tool. By securely gripping the fuel injection nozzle through the storage space formed by the first clamp claw, the second clamp claw, and the support portion, the risk of damage to the fuel injection nozzle and engine during the process of removing the fuel injection nozzle from the engine is reduced, the efficiency of the nozzle removal work is improved, and maintenance time is shortened. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a schematic diagram of a fuel injection nozzle removal tool according to the present invention; [Figure 2] FIG. 2 is a schematic front view of FIG. 1. [Figure 3] FIG. 2 is a schematic side view of FIG. [Figure 4] 1 is a schematic cross-sectional view showing the fuel injection nozzle removal tool of the present invention clamping and fixing the fuel injection nozzle; FIG. [Figure 5] 1 is a front view of the fuel injection nozzle clamped and fixed by the second clamping claws according to the present invention; FIG. DETAILED DESCRIPTION OF THE INVENTION

[0010] (One embodiment) As shown in FIGS. 1 to 5, the fuel injection nozzle removal tool is used to clamp the fuel injection nozzle 1 and perform the removal work. The fuel injection nozzle removal tool is composed of a main body 10, which has a first clamping claw 11, a second clamping claw 12, and a support portion 13. The first clamp claw 11 and the second clamp claw 12 are connected perpendicularly or at a certain angle to both ends of the support portion 13 in the Z-axis direction, and further extend in the X-axis direction. The first clamping claw 11, the second clamping claw 12 and the support portion 13 cooperate to form an accommodation space 14, which fixes the fuel injection nozzle 1. The X-axis direction is perpendicular to the Z-axis direction.

[0011] As shown in FIG. 1, the free end F of the first clamping claw 11 or the second clamping claw 12 is formed into a curved surface. The arc-shaped surface can prevent the user from injuring their hands when gripping the main body 10, and also reduces the risk of scratching the surface of the fuel injection nozzle 1 during the installation and removal process.

[0012] As shown in FIGS. 1 to 3, the support part 1 is integrally formed and includes a first support section 131 and a second support section 132 arranged above and below. In one embodiment, the width of the first support section 131 in the Y-axis direction is greater than the width of the second support section 132, with the wider first support section 131 enhancing the structural strength of the support part 13 and the narrower second support section 132 making it easier to secure the support part 13 to the engine (not shown).

[0013] As shown in FIGS. 1 to 3, in one embodiment, first curved surface portions 151 are formed at adjacent portions on both sides of the first support section 131 and the second support section 132, respectively. By providing the first curved surface portion 151, stress concentration at that portion of the support portion 13 can be alleviated, the risk of breakage or deformation during long-term use or under load can be reduced, and the durability of the main body 10 can be increased.

[0014] As shown in FIGS. 1 to 3, the first support section 131 and the first clamp claw 11 are connected to each other, and the second support section 132 and the second clamp claw 12 are connected to each other. A second curved surface portion 152 is formed at the adjacent portion between the first clamp claw 11 and the support portion 13, and a third curved surface portion 153 is formed at the adjacent portion between the second clamp claw 12 and the support portion 13. The second curved surface portion 152 and the third curved surface portion 153 can ease stress concentration, and reduce the risk of breakage or cracks occurring at the connection between the first clamping claw 11 or the second clamping claw 12 and the support portion 13.

[0015] As shown in FIGS. 1 to 3, the end surface of first clamping claw 11 has a first groove portion 111, and the end surface of second clamping claw 12 has a second groove portion 121. As shown in FIGS. In one embodiment, a line connecting the first groove portion 111 and the second groove portion 121 is defined as an imaginary axis L, and the imaginary axis L maintains a distance H from the wall surface of the adjacent support portion 13 . That is, the first groove portion 111 and the second groove portion 121 are disposed at a distance H from the wall surface of the support portion 13, and clamp different positions of the fuel injection nozzle 1, respectively. As a result, when removing the fuel injection nozzle 1 and the main body 10 after they have been connected, by ensuring the distance H, the user can easily insert his / her hand into the storage space 14, grasp the support part 13, apply force, and smoothly pull out the main body 10.

[0016] As shown in FIG. 3, in one embodiment, the length of the sidewall in the X-axis direction gradually increases from the first support section 131 to the second support section 132. That is, the side walls gradually expand from the first support section 131 to the second support section 132, and the length of the second support section 132 in the X-axis direction is greater than that of the first support section 131. This gradually expanding structure allows the support part 13 to provide additional mechanical stability and distribute the applied force when the fuel injection nozzle is pulled out. Therefore, even if the width of the second support section 132 in the Y-axis direction is smaller than that of the first support section 131, the structural strength of the second support section 132 can be improved by extending the side wall of the second support section 132, thereby reducing the risk of damage to the fuel injection nozzle 1 and the engine.

[0017] As shown in FIGS. 4 and 5, in one embodiment, the first clamping claw 11 and the second clamping claw 12 are clamped to face the side wall of the fuel injection nozzle 1, thereby firmly connecting the main body 10 and the fuel injection nozzle 1. In some embodiments, the top of the fuel injection nozzle 1 may additionally be provided with a screw fastening structure 20 to facilitate removal. In the initial stage of the removal process, the operator applies a light force to the top end of the fuel injection nozzle 1 to begin pulling it out. The structure of the first clamping claw 11 and the second clamping claw 12 not only ensures that the fuel injection nozzle 1 is securely clamped, but also distributes the initial pulling force applied to the top end of the nozzle evenly across the entire side wall, preventing the force from concentrating at one point, thereby significantly reducing the risk of damage when the fuel injection nozzle 1 is pulled out. Therefore, the fuel injection nozzle removal tool of the present invention reduces the risk of damage to the nozzle and engine when removing the fuel injection nozzle 1 from the engine, improves the efficiency of the removal work, shortens maintenance time, and protects the fuel injection nozzle 1 and related components.

[0018] 1. With the above configuration, the advantages of this invention are as follows: Secure clamping and highly efficient removal: The fuel injection nozzle 1 is securely clamped via the accommodation space 14 formed by the first clamp claw 11, the second clamp claw 12, and the support part 13, and the pulling force during removal is distributed, reducing the risk of damage to the fuel injection nozzle 1 and the engine and improving work efficiency. 2. High strength and lightweight structure of the support part 13: The first support section 131 and the second support section 132 are arranged above and below the support part 13. The wider first support section 131 increases the structural strength, while the narrower second support section 132 improves the connection with the engine and the operational stability. 3. Reduction of stress concentration by curved surfaces: The first curved surface 151 alleviates stress concentration at the support portion 13, reducing the risk of breakage or deformation during long-term use or under load. The second curved surface 152 and the third curved surface 153 effectively reduce stress concentration, reducing the risk of breakage or cracking at the connection between the first clamping claw 11 or second clamping claw 12 and the support portion 13, thereby improving the durability of the fuel injection nozzle removal tool of the present invention. [Explanation of symbols]

[0019] 1 fuel injection nozzle 10 main body, 11 First clamping jaw, 111 first groove portion, 12 second clamping jaw, 121 second groove portion, 13 support part, 131 First Support Section, 132 Second Support Section, 14 accommodation space, 151 1st curved surface part, 152 2nd curved surface part, 153 3rd curved surface part, 20 Screw fastening structure, L virtual axis, H distance, F free end.

Claims

1. A fuel injection nozzle removal tool used to clamp and remove a fuel injection nozzle, The fuel injection nozzle removal tool has a body, The body has a first clamp claw, a second clamp claw, and a support portion, the first clamp claw and the second clamp claw are connected to both ends of the support portion in the Z-axis direction and further extend in the X-axis direction, whereby the first clamp claw, the second clamp claw, and the support portion cooperate to form an accommodation space and fix the fuel injection nozzle; the X-axis direction is perpendicular to the Z-axis direction, an end surface of the first clamping claw having a first groove portion; an end surface of the second clamping claw having a second groove portion; The first groove portion and the second groove portion clamp different positions of the fuel injection nozzle, respectively. Fuel injection nozzle removal tool.

2. The support portion is integrally formed and includes a first support section and a second support section disposed one above the other, the first support section and the first clamping claw are articulated; the second support section and the second clamping claw are articulated; The first support section has a width in the Y-axis direction that is greater than the width of the second support section.

2. The fuel injection nozzle removal tool according to claim 1.

3. A first curved surface portion is formed at each of adjacent portions on both sides of the first support section and the second support section.

3. The fuel injection nozzle removal tool according to claim 2.

4. a second curved surface portion is formed at an adjacent portion between the first clamp claw and the support portion; A third curved surface portion is formed at an adjacent portion between the second clamp claw and the support portion.

4. The fuel injection nozzle removal tool according to claim 3.

5. The free end of the first clamping claw or the second clamping claw is formed into a curved surface.

5. The fuel injection nozzle removal tool according to claim 4.

6. The first groove portion and the second groove portion maintain a predetermined distance from the wall surface of the adjacent support portion.

2. The fuel injection nozzle removal tool according to claim 1.

7. The length of the side wall in the X-axis direction gradually increases from the first support section to the second support section.

3. The fuel injection nozzle removal tool according to claim 2.

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