A tool for disassembling and assembling a single-shot instrument

Abstract

This utility model relates to the field of single-shot injection device disassembly and assembly technology, and in particular to a tooling for disassembling and assembling a single-shot injection device. The tooling for disassembling and assembling a single-shot injection device includes: a single-shot injection device body, a pin hole on the top of the single-shot injection device body, an external hexagonal nut fixedly connected to the top of a guide seat, guide grooves equidistantly provided on the bottom of the guide seat, a clamping column slidably connected to the guide seat through the guide grooves, a through hole inside the clamping column, a positioning pin installed inside the clamping column for positioning, an adjustment component for adjusting the position of the clamping column installed inside the guide seat, and a clamping component for clamping the positioning pin installed inside the clamping column. The tooling for disassembling and assembling a single-shot injection device provided by this utility model has the advantages of precise positioning, efficient disassembly and assembly, and convenient clamping and replacement of the positioning pin through the provided adjustment component and clamping component.

Description

Technical Field

[0001] This utility model relates to the field of single-shot injection device disassembly and assembly technology, and in particular to a tooling for disassembling and assembling a single-shot injection device. Background Technology

[0002] The fuel injector system is an important component in low-speed marine engines. Its main function is to measure the amount of fuel injected during engine operation and inject gasoline into the intake manifold or cylinder. It has the characteristics of a large dynamic flow range, anti-clogging and good atomization performance.

[0003] Currently, there are many problems with the disassembly and assembly of single-shot sprayers. Existing disassembly and assembly methods often lack precise positioning and convenient adjustment means. When installing and disassembling single-shot sprayers, it is difficult for operators to quickly and accurately align the positioning parts with the pin holes on the single-shot sprayer body, resulting in low operating efficiency and easy damage to the equipment due to inaccurate positioning. In addition, traditional tooling is not convenient enough in terms of clamping and replacing positioning pins. When positioning pins are worn or need to be replaced with positioning pins of different specifications, the operation process is cumbersome, increasing maintenance costs and time costs.

[0004] Therefore, it is necessary to provide a new tooling for the disassembly and assembly of a single-shot injector to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a tooling for disassembling and assembling a single-shot injector.

[0006] The tooling for disassembling and assembling a single-shot injector provided by this utility model includes: a single-shot injector body, a pin hole on the top of the single-shot injector body, an external hexagonal nut fixedly connected to the top of the guide seat, guide grooves equidistantly provided on the bottom of the guide seat, a clamping column slidably connected to the guide seat through the guide grooves, a through hole inside the clamping column, a positioning pin for positioning installed inside the clamping column, an adjusting component for adjusting the position of the clamping column installed inside the guide seat, and a clamping component for clamping the positioning pin installed inside the clamping column.

[0007] Preferably, the adjusting assembly includes: a rotating rod, a worm gear, a worm wheel, and an adjusting disc. The rotating rod is rotatably connected to one side of the guide seat, the worm gear is rotatably connected inside the guide seat, the worm gear shaft is fixedly connected to the rotating rod, the worm wheel is rotatably connected inside the guide seat, the worm wheel meshes with the worm gear, the adjusting disc is rotatably connected inside the guide seat, the top of the adjusting disc is fixedly connected to the worm wheel, and the adjusting disc has equidistant adjusting grooves inside.

[0008] Preferably, the clamping assembly includes: a limiting head, a release disc, a limiting block, and a spring. One end of the positioning pin is fixedly connected to the limiting head, the release disc is slidably connected to the outer wall of the limiting head, the limiting block is slidably connected to the inside of the clamping column, the end of the limiting block away from the through hole is fixedly connected to the spring, and the end of the spring away from the limiting block is fixedly connected to the clamping column.

[0009] Preferably, the bottom of the limiting block is designed with an angle.

[0010] Preferably, the top of the clamping column does not contact the bottom of the worm gear.

[0011] Preferably, the top of the limiting head is designed as a hemispherical shape, and the diameter of the cylinder at the bottom of the limiting head is smaller than the diameter of the positioning pin.

[0012] Preferably, the top of the clamping column is located inside the adjustment groove.

[0013] Preferably, the bottom of the release plate is designed with rounded corners, and the diameter of the release plate is the same as the diameter of the limiting head.

[0014] Compared with related technologies, the tooling for disassembling and assembling a single-shot injector provided by this utility model has the following beneficial effects:

[0015] Precise positioning and efficient assembly / disassembly:

[0016] This device allows operators to easily adjust the position of the clamping column through the adjustment components, achieving precise adjustment of the clamping column position. This enables the positioning pin to quickly and accurately align with the pin hole on the single-shot injector body, greatly improving assembly and disassembly efficiency and work efficiency.

[0017] Convenient positioning pin clamping and replacement:

[0018] This device can firmly clamp the positioning pin through the clamping assembly. When the positioning pin is inserted into the through hole of the clamping column, the limiting block is locked by the limiting head under the action of the spring, thus achieving reliable fixation of the positioning pin. When the positioning pin needs to be replaced, simply continue to push the positioning pin. Utilizing the rounded corner design at the bottom of the release plate, the limiting block can overcome the elastic force of the spring and slide away from the limiting head, thereby releasing the restriction on the limiting head and making it easy to remove the positioning pin for replacement. This design makes the replacement operation of the positioning pin simpler and faster, reducing maintenance costs and time costs. Attached Figure Description

[0019] Figure 1 A schematic diagram of the tooling for disassembling and assembling a single-shot injector provided by this utility model;

[0020] Figure 2 for Figure 1 The diagram shows the structure of the guide seat;

[0021] Figure 3 for Figure 1 The diagram shows the structure of the adjustment component;

[0022] Figure 4 for Figure 3 The diagram shows the structure of the adjustment disc;

[0023] Figure 5 for Figure 4 The diagram shows a cross-sectional view of the clamping column.

[0024] The following are the labels in the diagram: 1. Single-shot instrument body; 2. Pin hole; 3. External hexagonal nut; 4. Guide seat; 5. Guide groove; 6. Clamping post; 7. Through hole; 8. Positioning pin; 21. Rotating rod; 22. Worm gear; 23. Worm wheel; 24. Adjusting disc; 25. Adjusting groove; 31. Limit head; 32. Release disc; 33. Limit block; 34. Spring. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model.

[0026] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0027] Please see Figures 1 to 5 A tooling for disassembling and assembling a single-shot injector, the tooling comprising: a single-shot injector body, a pin hole at the top of the single-shot injector body, an external hexagonal nut fixedly connected to the top of a guide seat, guide grooves equidistantly provided at the bottom of the guide seat, a clamping column slidably connected to the guide seat through the guide grooves, a through hole inside the clamping column, a positioning pin installed inside the clamping column, an adjusting component for adjusting the position of the clamping column installed inside the guide seat, and a clamping component for clamping the positioning pin installed inside the clamping column.

[0028] It should be noted that when disassembling and assembling the single-shot injector, align the locating pin at the bottom of the guide seat with the pin hole on the single-shot injector body, insert the locating pin into the pin hole, and then use a suitable tool to apply torque to the external hex nut.

[0029] Please see Figures 1 to 4 The adjustment assembly includes: a rotating rod, a worm gear, a worm wheel, and an adjustment disc. The rotating rod is rotatably connected to one side of the guide seat, and the worm gear is rotatably connected inside the guide seat. The worm gear shaft is fixedly connected to the rotating rod. The worm wheel is rotatably connected inside the guide seat and meshes with the worm gear. The adjustment disc is rotatably connected inside the guide seat, and the top of the adjustment disc is fixedly connected to the worm wheel. The adjustment disc has equidistant adjustment grooves inside, and the top of the clamping column does not contact the bottom of the worm wheel. The top of the clamping column is located inside the adjustment groove.

[0030] It should be noted that the worm gear is located at the top of the adjusting plate, and the top of the clamping column is located inside the adjusting groove, not exceeding the adjusting groove. When the clamping column slides inside the arc-shaped adjusting groove, it will not touch the worm gear, thus avoiding damage to the components. The adjusting plate can drive the clamping column to slide inside the guide groove through the adjusting groove.

[0031] Please see Figure 5 The clamping assembly includes: a limiting head, a release disc, a limiting block, and a spring. One end of the positioning pin is fixedly connected to the limiting head. The release disc is slidably connected to the outer wall of the limiting head. The limiting block is slidably connected to the inside of the clamping column. The end of the limiting block away from the through hole is fixedly connected to the spring. The end of the spring away from the limiting block is fixedly connected to the clamping column. The bottom of the limiting block is designed with an angle, and the top of the limiting head is designed as a hemispherical shape. The diameter of the cylinder at the bottom of the limiting head is smaller than the diameter of the positioning pin. The bottom of the release disc is designed with rounded corners, and the diameter of the release disc is the same as the diameter of the limiting head.

[0032] It should be noted that the beveled design at the bottom of the limiting block facilitates the release of the locating pin, and the rounded corner design at the bottom of the release plate causes the limiting block to move away from the axis of the through hole when it is subjected to pressure from the bottom of the release plate. The diameter of the release plate is the same as the diameter of the limiting head, so that the release plate can squeeze the limiting block far enough that when the locating pin is released, the limiting block will no longer restrict the release of the limiting head.

[0033] The working principle of the tooling for disassembling and assembling a single injection device provided by this utility model is as follows:

[0034] Installation and positioning of locating pins:

[0035] First, insert the positioning pin into the through hole of the clamping column. When the positioning pin is inserted, the limiting head pushes the limiting block upward, and the spring is compressed. After the limiting head passes the limiting block, the spring pops out and squeezes the cylinder at the bottom of the limiting block. At this time, the limiting block locks the limiting head to prevent the limiting block from falling, thus completing the clamping and fixing of the positioning pin. Then, according to the position of the pin hole on the single-shot injector body, adjust the position of the clamping column and rotate the rotating rod. The rotating rod drives the worm gear fixedly connected to it to rotate. Since the worm gear meshes with the worm wheel, the rotation of the worm gear will drive the worm wheel to rotate, which in turn causes the adjusting plate fixedly connected to the worm wheel to rotate. The adjusting groove in the adjusting plate cooperates with the top of the clamping column. As the adjusting plate rotates, the clamping column slides in the guide groove, thereby realizing the adjustment of the position of the positioning pin and aligning it with the pin hole on the single-shot injector body.

[0036] Disassembly and assembly procedures for a single injection device:

[0037] When disassembling and assembling the single-shot injector, align the locating pin at the bottom of the guide seat with the pin hole on the single-shot injector body, insert the locating pin into the pin hole, and then use a suitable tool to apply torque to the external hex nut. The external hex nut drives the guide seat to rotate, and the guide seat drives the clamping column and the locating pin inside the clamping column to rotate through the guide groove, thereby causing the locating pin to drive the single-shot injector to rotate, thus completing the disassembly and assembly of the single-shot injector.

[0038] Replace the locating pin:

[0039] Different models of single-jet injectors may have different pin hole diameters, so it is necessary to replace the matching locating pin. Continue pushing the locating pin into the through hole, causing the release disc on the outer wall of the limit head to press against the limit block, moving the limit block away from the axis of the through hole until the limit block contacts the bottom of the release disc. At this point, pull the locating pin out of the through hole. Because the bottom of the release disc is designed with rounded corners, during the pulling process, the release disc will cause the limit block to overcome the spring force and slide away from the limit head, thereby releasing the restriction on the limit head. At this point, the locating pin can be removed from the through hole, replaced with a new locating pin, and the above steps for installing the locating pin can be repeated.

[0040] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A tooling for single shot instrument disassembly, characterized by, include: The single-shot injector body (1) has a pin hole (2) on the top of the single-shot injector body; Guide seat (4), the top of the guide seat (4) is fixedly connected with an external hexagonal nut (3), and the bottom of the guide seat (4) is provided with guide grooves (5) at equal intervals; The clamping column (6) and the guide seat (4) are slidably connected to the clamping column (6) through the guide groove (5). The clamping column (6) has a through hole (7) inside and a positioning pin (8) for positioning is installed inside the clamping column (6). The guide seat (4) is equipped with an adjustment component for adjusting the position of the clamping column (6); The clamping assembly has a clamping component installed inside the clamping post (6) for clamping the positioning pin (8).

2. The tooling for single shot instrument disassembly of claim 1, wherein, The adjustment assembly includes: a rotating rod (21), a worm (22), a worm wheel (23), and an adjustment disc (24). The rotating rod (21) is rotatably connected to one side of the guide seat (4). The worm (22) is rotatably connected inside the guide seat (4). The worm (22) is fixedly connected to the rotating rod (21) at its axis. The worm wheel (23) is rotatably connected inside the guide seat (4). The worm wheel (23) meshes with the worm (22). The adjustment disc (24) is rotatably connected inside the guide seat (4). The top of the adjustment disc (24) is fixedly connected to the worm wheel (23). Adjustment grooves (25) are equidistantly provided inside the adjustment disc (24).

3. The tooling for single shot instrument disassembly of claim 1, wherein, The clamping assembly includes: a limiting head (31), a release disc (32), a limiting block (33), and a spring (34). One end of the positioning pin (8) is fixedly connected to the limiting head (31). The release disc (32) is slidably connected to the outer wall of the limiting head (31). The limiting block (33) is slidably connected inside the clamping column (6). The end of the limiting block (33) away from the through hole (7) is fixedly connected to the spring (34). The end of the spring (34) away from the limiting block (33) is fixedly connected to the clamping column (6).

4. The tooling for single shot instrument disassembly of claim 3, wherein, The bottom of the limiting block (33) is designed with an angle.

5. The tooling for single shot instrument disassembly of claim 2, wherein, The top of the clamping column (6) does not contact the bottom of the worm gear (23).

6. The tooling for single shot instrument disassembly of claim 3, wherein, The top of the limiting head (31) is a hemispherical design, and the diameter of the bottom cylinder of the limiting head (31) is smaller than the diameter of the positioning pin (8).

7. The tooling for single shot instrument disassembly of claim 2, wherein, The top of the clamping column (6) is located inside the adjustment groove (25).

8. The tooling for single shot instrument disassembly of claim 3, wherein, The bottom of the release plate (32) is designed with rounded corners, and the diameter of the release plate (32) is the same as the diameter of the limit head (31).

Images