High-pressure connecting pipe dismounting tool

Abstract

The utility model provides a high-pressure connecting pipe dismounting tool, and relates to the technical field of dismounting tools. The high-pressure connecting pipe disassembling tool comprises a pull rod assembly and a high-pressure connecting pipe front end, the pull rod assembly comprises a pull rod, a handle, a sleeve block and a nut, the handle is fixedly connected with one end of the pull rod, the sleeve block is fixedly arranged on the pull rod in a sleeving mode, and the nut is arranged on the pull rod in a sliding and sleeving mode. And an external thread is arranged at the front end of the high-pressure connecting pipe. A nut is arranged, internal threads of the nut are matched with external threads at the front end of a high-pressure connecting pipe, so that the nut can be connected to the front end of the high-pressure connecting pipe, a sleeve block is arranged in the nut and sleeves a pull rod, and one end of the pull rod is connected with a handle, so that the pull rod is pulled through the handle, and the pull rod pulls the nut through the sleeve block; the front end of the high-pressure connecting pipe is pulled towards the outer side of the cylinder body, the dismounting purpose is achieved, meanwhile, threads at the front end of the high-pressure connecting pipe can be prevented from being damaged, and the scrapping condition is avoided.

Description

Technical Field

[0001] The present application relates to the field of disassembly tools, and in particular to a high-pressure connecting pipe disassembly tool. Background Art

[0002] Truck fuel injectors, also known as fuel injection nozzles, are components that atomize fuel and distribute it in the engine combustion chamber. High-pressure connectors are connected to the fuel injectors, and external threads are provided on the front end of the high-pressure connecting pipe for connecting to high-pressure pipelines.

[0003] In the related art, the high-pressure connecting pipe is disassembled by prying it out with a screwdriver, placing the flat end of the screwdriver into the threads at the front end of the high-pressure pipe, and then prying the front end of the high-pressure pipe out of the cylinder body little by little through the principle of leverage. This method can easily damage the threads at the front end of the high-pressure pipe, causing it to be scrapped and causing waste. Summary of the invention

[0004] In order to overcome the existing deficiencies, an embodiment of the present application provides a high-pressure connecting pipe disassembly tool, which can solve the problem that the front end thread of the high-pressure pipe is easily scrapped when the front end is disassembled.

[0005] The technical solution adopted by the embodiment of the present application to solve its technical problem is: a high-pressure connecting pipe disassembly tool, including a pull rod assembly and a front end of the high-pressure connecting pipe.

[0006] The pull rod assembly includes a pull rod, a handle, a sleeve and a nut. The handle is fixedly connected to one end of the pull rod, the sleeve is fixedly sleeved on the pull rod, and the nut is slidably sleeved on the pull rod. An external thread is provided on the front end of the high-pressure connecting pipe, and the nut is connected to the front end of the high-pressure connecting pipe through the external thread. The side wall of one end of the sleeve is in contact with the side wall of the front end of the high-pressure connecting pipe.

[0007] In a specific embodiment, the outer ring side wall of the nut is polygonal, and the diameter of the sleeve is smaller than the inner ring diameter of the nut.

[0008] In a specific embodiment, a through hole is opened on the side wall of one end of the nut, and the pull rod is arranged through the through hole.

[0009] In a specific embodiment, the sliding sleeve on the pull rod is provided with a gasket, and the gasket is located between the sleeve block and the side wall of one end of the nut.

[0010] In a specific embodiment, an annular buffer pad is fixedly mounted on a side wall at one end of the sleeve block, and the annular buffer pad is arranged in contact with the side wall at the front end of the high-pressure connecting pipe.

[0011] In a specific embodiment, the handle and the pull rod are arranged vertically, and one end of the pull rod is fixedly connected to the middle of the outer wall of the handle.

[0012] The advantages of the embodiments of the present application are:

[0013] 1. By setting a nut, the internal thread of the nut is adapted to the external thread of the front end of the high-pressure connecting pipe, so that the nut can be connected to the front end of the high-pressure connecting pipe, and the sleeve block is placed in the nut, and the sleeve block is sleeved on the pull rod. One end of the pull rod is connected to the handle, so that the pull rod is pulled by the handle, and the pull rod pulls the nut through the sleeve block, so that the front end of the high-pressure connecting pipe is pulled to the outside of the cylinder body, and the purpose of disassembly is achieved. At the same time, it can prevent the screw thread at the front end of the high-pressure connecting pipe from being damaged, avoiding scrapping.

[0014] 2. By setting a gasket, the gasket is located between the sleeve block and the side wall of one end of the nut, so as to reduce the wear between the sleeve block and the nut and improve the service life of the tool. At the same time, an annular buffer pad is installed on the side wall of one end of the sleeve block to prevent the front end side wall of the high-pressure connecting pipe from being worn. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of a front cross-sectional structure of a high-pressure connecting pipe disassembly tool provided in an embodiment of the present application;

[0016] Figure 2 A schematic structural diagram of the connection relationship between the high-pressure connecting pipe disassembly tool and the front end of the high-pressure connecting pipe provided in an embodiment of the present application;

[0017] Figure 3 This is a schematic structural diagram of the connection relationship between the handle and the pull rod in the high-pressure connecting pipe disassembly tool provided in an embodiment of the present application.

[0018] In the figure: 10-tie rod assembly; 110-tie rod; 120-handle; 130-block; 140-nut; 20-front end of high-pressure connecting pipe; 30-through hole; 40-gasket; 50-annular buffer pad. DETAILED DESCRIPTION

[0019] The technical solution in the embodiment of the present application is to solve the problem that the front end thread of the high-pressure pipe is easily scrapped when the front end is disassembled. The overall idea is as follows:

[0020] Embodiment 1:

[0021] See also Figure 1-3 A high-pressure connecting pipe disassembly tool comprises a pull rod assembly 10 and a high-pressure connecting pipe front end 20.

[0022] The pull rod assembly 10 includes a pull rod 110, a handle 120, a sleeve 130 and a nut 140. The handle 120 is fixedly connected to one end of the pull rod 110, the sleeve 130 is fixedly sleeved on the pull rod 110, the nut 140 is slidably sleeved on the pull rod 110, an external thread is provided on the front end 20 of the high-pressure connecting pipe, the nut 140 is connected to the front end 20 of the high-pressure connecting pipe through the external thread, and the side wall of one end of the sleeve 130 is in contact with the side wall of the front end 20 of the high-pressure connecting pipe.

[0023] In the specific setting, the connection method between the high-pressure connecting pipe and the existing engine cylinder block is the existing technology. When disassembling the high-pressure connecting pipe, the high-pressure connecting pipe is pulled out of the cylinder block by pulling the front end 20 of the high-pressure connecting pipe. Specifically, the nut 140 is connected to the front end 20 of the high-pressure connecting pipe, and then the nut 140 is pulled by the handle 120 to pull the front end 20 of the high-pressure connecting pipe, thereby achieving the disassembly purpose, and at the same time, it can prevent the screw threads on the front end 20 of the high-pressure connecting pipe from being damaged.

[0024] See also Figure 2 The outer ring side wall of the nut 140 is polygonal, the diameter of the sleeve 130 is smaller than the inner ring diameter of the nut 140, a through hole 30 is opened on the side wall of one end of the nut 140, and the pull rod 110 is arranged through the through hole 30. A gasket 40 is slidably sleeved on the pull rod 110, and the gasket 40 is located between the sleeve 130 and the side wall of one end of the nut 140. An annular buffer pad 50 is fixedly installed on the side wall of one end of the sleeve 130, and the annular buffer pad 50 is contacted with the side wall of the front end 20 of the high-pressure connecting pipe. The handle 120 and the pull rod 110 are vertically arranged, and one end of the pull rod 110 is fixedly connected to the middle of the outer wall of the handle 120.

[0025] In the specific setting, the side wall of the outer ring of the nut 140 is polygonal, which is convenient for rotating the nut 140, thereby facilitating the connection between the nut 140 and the external thread on the front end 20 of the high-pressure connecting pipe. The diameter of the sleeve 130 is smaller than the diameter of the inner ring of the nut 140, so that the sleeve 130 can enter the nut 140, thereby contacting the inner wall of one end of the nut 140. When the sleeve 130 is pulled, the sleeve 130 can pull the nut 140. Specifically, a gasket 40 is arranged between the sleeve 130 and the inner wall of one end of the nut 140 to reduce the wear between the nut 140 and the sleeve 130. Similarly, an annular buffer pad 50 is installed on the side wall of the sleeve 130 to reduce the wear between the side wall of the front end 20 of the high-pressure connecting pipe.

[0026] When using this application:

[0027] First, push the nut 140 to move the nut 140 to one end of the pull rod 110, and at the same time, the sleeve 130 is placed in the nut 140, and then align the nut 140 with the front end 20 of the high-pressure connecting pipe, so that the nut 140 is connected to the external thread of the front end 20 of the high-pressure connecting pipe, so that the nut 140 is connected to the front end 20 of the high-pressure connecting pipe, and at the same time, the sleeve 130 contacts the inner wall of one end of the nut 140 through the gasket 40, and the annular buffer pad 50 contacts the side wall of the front end 20 of the high-pressure connecting pipe, so as to achieve a stable connection between the nut 140, the sleeve 130 and the front end 20 of the high-pressure connecting pipe, and then pull the pull rod 110 through the handle 120, so as to achieve the pulling of the nut 140 through the sleeve 130, and the nut 140 cooperates with the external thread on the front end 20 of the high-pressure connecting pipe to achieve the pulling of the front end 20 of the high-pressure connecting pipe, so as to achieve the disassembly purpose, and can avoid the damage of the thread on the front end 20 of the high-pressure connecting pipe.

[0028] It should be noted that the specific model and specifications of the nut 140 need to be selected and determined based on the actual specifications of the device, and the specific selection and calculation method adopts the existing technology in this field, so it will not be described in detail.

[0029] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A high-pressure connecting pipe disassembly tool, characterized in that: include A pull rod assembly (10), the pull rod assembly (10) comprising a pull rod (110), a handle (120), a sleeve (130) and a nut (140), the handle (120) being fixedly connected to one end of the pull rod (110), the sleeve (130) being fixedly sleeved on the pull rod (110), and the nut (140) being slidably sleeved on the pull rod (110); A front end (20) of a high-pressure connecting pipe is provided with an external thread, the nut (140) is connected to the front end (20) of the high-pressure connecting pipe via the external thread, and a side wall of one end of the sleeve (130) is in contact with a side wall of the front end (20) of the high-pressure connecting pipe.

2. The high-pressure connecting pipe removal tool according to claim 1, characterized in that: The outer ring side wall of the nut (140) is arranged in a polygonal shape, and the diameter of the sleeve (130) is smaller than the inner ring diameter of the nut (140).

3. The high-pressure connecting pipe removal tool according to claim 2, characterized in that: A through hole (30) is provided on a side wall at one end of the nut (140), and the pull rod (110) is arranged through the through hole (30).

4. The high-pressure connecting pipe removal tool according to claim 1, characterized in that: A gasket (40) is provided on the sliding sleeve of the pull rod (110), and the gasket (40) is located between the sleeve block (130) and a side wall of one end of the nut (140).

5. The high-pressure connecting pipe removal tool according to claim 1, characterized in that: An annular buffer pad (50) is fixedly mounted on a side wall at one end of the sleeve block (130), and the annular buffer pad (50) is arranged in contact with the side wall of the front end (20) of the high-pressure connecting pipe.

6. The high-pressure connecting pipe removal tool according to claim 1, characterized in that: The handle (120) and the pull rod (110) are arranged vertically, and one end of the pull rod (110) is fixedly connected to the middle of the outer wall of the handle (120).

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