An assembly tool for the high-pressure connecting pipe of an injector

Abstract

The present invention discloses an assembly tool for a high-pressure connecting pipe of an injector, comprising: a body, wherein a plurality of groups of mounting holes are formed in the body, a connecting pipe main body is mounted in the mounting holes, a sealing ring is sleeved on the outer surface of the connecting pipe main body, and a pressing tool, the pressing tool comprising a pressing rod welding part, a pull rod, a pressing head, a positioning rod and a pin. For the assembly tool for the high-pressure connecting pipe of the injector according to the present invention, through the provided pressing tool, the pressing tool can safely install the sealing ring on the body, and the pressing tool can vertically press the sealing ring into the mounting hole, eliminating the quality hidden danger of the impact cutting edge sealing ring, thereby protecting the sealing ring from being damaged, avoiding the engine from having an oil leakage fault, prolonging the service life of the sealing ring, reducing the economic loss of people, facilitating the use of people, the whole device has a simple structure and convenient operation, and increases the practicability of the whole assembly tool.

Description

Technical Field

[0001] The present invention relates to the technical field of fuel injectors, and particularly relates to an assembly tool for a high-pressure connecting pipe of a fuel injector. Background Art

[0002] A fuel injector is a precision device with very high machining accuracy, requiring a large dynamic flow range, strong anti-blocking and anti-pollution capabilities, and good atomization performance. When a fuel injector is in use, a high-pressure connecting pipe is needed, and an O-ring seal is required when installing the high-pressure connecting pipe.

[0003] There are certain drawbacks when an existing assembly tool for a high-pressure connecting pipe of a fuel injector is in use. When the existing high-pressure connecting pipe assembly tool is in use, the method of using a rubber hammer to strike is used to install the high-pressure connecting pipe in place. The impact force of the strike shears the O-ring seal of the high-pressure connecting pipe, causing a quality hidden danger of engine oil leakage failure and unable to meet people's needs. For this reason, we propose an assembly tool for a high-pressure connecting pipe of a fuel injector. Summary of the Invention

[0004] The main purpose of the present invention is to provide an assembly tool for a high-pressure connecting pipe of a fuel injector, which can effectively solve the problems in the background art.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0006] An assembly tool for a high-pressure connecting pipe of a fuel injector, comprising:

[0007] A body, on which a plurality of groups of mounting holes are provided, a connecting pipe main body is installed in the mounting holes, and a sealing ring is sleeved on the outer surface of the connecting pipe main body; and

[0008] A pressing tool, the pressing tool includes a pressing rod welded part, a pull rod, a pressing head, a positioning rod and a pin. The pull rod is connected to the pressing rod welded part, the positioning rod is connected to the pull rod, the pin is installed on the pull rod, a first connecting hole is provided on the pressing rod welded part, the pressing head is installed in the first connecting hole, a connecting head is provided on the pressing rod welded part, and one side outer surface of the pressing head is connected to one side outer surface of the sealing ring.

[0009] Preferably, a second connecting hole is provided on the outer surface of the pull rod away from the pressing rod welded part, and the positioning rod is welded to the hole wall of the second connecting hole.

[0010] Preferably, a connecting block is provided on the outer surface of the end of the pull rod close to the pressing rod welded part, a connecting groove is provided on the connecting block, the pin is installed in the connecting groove, and the pull rod is connected to the pressing rod welded part through the pin.

[0011] Preferably, the press bar welding part includes a handle and a pressing plate. A fixing part is arranged on the outer surface of one side of the pressing plate. A fixing groove is formed on the outer surface of one end of the handle. The fixing part is connected to the fixing groove.

[0012] Preferably, the connecting head is installed on the pressing plate. The first connecting hole is formed on the outer surface of the pressing plate on the side far from the connecting head.

[0013] Preferably, the cross-sectional shape of the pressing head is circular. The sealing ring is set as an "O" shape. The diameter dimension of the pressing head is larger than the diameter dimension of the sealing ring.

[0014] Preferably, the installation hole is formed on the outer surface of the front end of the machine body. A plurality of groups of fuel injectors are arranged on the outer surface of the top of the machine body.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] By providing the pressing tool, the pressing tool can safely install the sealing ring onto the machine body. The pressing tool can vertically press the sealing ring into the installation hole, eliminating the quality hidden danger of the impact force trimming the sealing ring, thereby protecting the sealing ring from being damaged, avoiding the oil leakage fault of the engine, prolonging the service life of the sealing ring, reducing the economic loss of people, facilitating the use of people. The whole device has a simple structure and convenient operation, increasing the practicability of the whole assembly tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is the overall structure diagram of an assembly tool for a high-pressure connecting pipe of an injector of the present invention;

[0018] Figure 2 It is the partial structure diagram of the pressing tool in an assembly tool for a high-pressure connecting pipe of an injector of the present invention;

[0019] Figure 3 It is the partial structure diagram of the pressing plate in an assembly tool for a high-pressure connecting pipe of an injector of the present invention;

[0020] Figure 4 It is the partial structure diagram of the press bar welding part in an assembly tool for a high-pressure connecting pipe of an injector of the present invention;

[0021] Figure 5 It is the partial structure diagram of the machine body in an assembly tool for a high-pressure connecting pipe of an injector of the present invention.

[0022] In the figure: 1, machine body; 2, connecting pipe main body; 3, sealing ring; 4, press bar welding part; 5, pull rod; 6, pressing head; 7, positioning rod; 8, pin; 9, handle; 10, pressing plate. DETAILED DESCRIPTION OF THE INVENTION

[0023] To make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0024] Refer to Figures 1-5 As shown, an assembly tool for a high-pressure connecting pipe of an injector includes:

[0025] A body 1, on which a number of groups of mounting holes are provided, in which a connecting pipe main body 2 is installed, and a sealing ring 3 is sleeved on the outer surface of the connecting pipe main body 2; and

[0026] A pressing tool, which includes a pressing rod welding part 4, a pull rod 5, a pressing head 6, a positioning rod 7 and a pin 8. The pull rod 5 is connected to the pressing rod welding part 4, the positioning rod 7 is connected to the pull rod 5, the pin 8 is installed on the pull rod 5, a first connecting hole is provided on the pressing rod welding part 4, the pressing head 6 is installed in the first connecting hole, a connecting head is provided on the pressing rod welding part 4, and one side outer surface of the pressing head 6 is connected to one side outer surface of the sealing ring 3.

[0027] A positioning hole is provided on the top outer surface of the body 1, and the positioning rod 7 is connected to the positioning hole.

[0028] The pressing head 6 is welded to the pressing rod welding part 4.

[0029] A second connecting hole is provided on the outer surface of the side of the pull rod 5 away from the pressing rod welding part 4, and the positioning rod 7 is welded to the hole wall of the second connecting hole.

[0030] A connecting block is provided on the outer surface of one end of the pull rod 5 close to the pressing rod welding part 4, a connecting groove is provided on the connecting block, the pin 8 is installed in the connecting groove, and the pull rod 5 is connected to the pressing rod welding part 4 through the pin 8.

[0031] The pressing rod welding part 4 includes a handle 9 and a pressing plate 10. A fixing part is provided on one side outer surface of the pressing plate 10, a fixing groove is provided on the outer surface of one end of the handle 9, and the fixing part is connected to the fixing groove.

[0032] The handle 9 is welded to the pressing plate 10.

[0033] The connecting head is installed on the pressing plate 10, and the first connecting hole is provided on the outer surface of the side of the pressing plate 10 away from the connecting head.

[0034] The cross-sectional shape of the pressing head 6 is circular, the sealing ring 3 is set as an "O" shape, and the diameter size of the pressing head 6 is larger than the diameter size of the sealing ring 3.

[0035] The mounting holes are provided on the front outer surface of the body 1, and a number of groups of injectors are provided on the top outer surface of the body 1.

[0036] Use the tooling to press the injector in place, insert the connecting pipe main body 2 into the mounting hole until the side steel balls are aligned and pushed into the slot holes.

[0037] It should be noted that the present invention is an injector high-pressure connecting pipe assembly tool. When in use, the connecting pipe body 2 is installed into the mounting hole, and the sealing ring 3 is installed into the mounting hole using a press-fitting tool;

[0038] Through the set pressing tool, the pressing tool can safely install the sealing ring 3 on the body 1, assemble the pressure rod welding part 4, the pull rod 5, the pressure head 6, the positioning rod 7 and the pin 8, insert the positioning rod 7 into the positioning hole, insert the connecting pipe main body 2 into the mounting hole, insert the sealing ring 3 into the mounting hole, connect the pressure head 6 and the outer surface of one side of the sealing ring 3, move the handle 9, drive the pressure plate 10 to move, drive the pressure head 6 to move, and drive the sealing ring 3 to be vertically pressed into the mounting hole. The pressing tool can press the sealing ring 3 vertically into the mounting hole, eliminate the quality hidden danger of the impact force cutting edge sealing ring 3, thereby protecting the sealing ring 3 from damage, avoiding oil leakage failure of the engine, and extending the service life of the sealing ring 3, reducing people's economic losses, and facilitating people's use. The whole device has a simple structure and is easy to operate, which increases the practicality of the whole assembly tool.

[0039] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An assembly tool for the high-pressure connecting pipe of an injector, characterized in that, it includes: a body (1), on which a number of groups of mounting holes are provided, in which a connecting pipe body (2) is installed, and a sealing ring (3) is sleeved on the outer surface of the connecting pipe body (2); and a pressing tool, which includes a pressing rod welded part (4), a pull rod (5), a pressing head (6), a positioning rod (7) and a pin (8), the pull rod (5) is connected to the pressing rod welded part (4), the positioning rod (7) is connected to the pull rod (5), the pin (8) is installed on the pull rod (5), a first connecting hole is provided on the pressing rod welded part (4), the pressing head (6) is installed in the first connecting hole, a connecting head is provided on the pressing rod welded part (4), and one side outer surface of the pressing head (6) is connected to one side outer surface of the sealing ring (3); a connecting block is provided on the outer surface of one end of the pull rod (5) close to the pressing rod welded part (4), a connecting groove is provided on the connecting block, the pin (8) is installed in the connecting groove, and the pull rod (5) is connected to the pressing rod welded part (4) through the pin (8); the pressing rod welded part (4) includes a handle (9) and a pressing plate (10), a fixing part is provided on one side outer surface of the pressing plate (10), a fixing groove is provided on the outer surface of one end of the handle (9), and the fixing part is connected to the fixing groove; a second connecting hole is provided on the outer surface of one side of the pull rod (5) away from the pressing rod welded part (4), and the positioning rod (7) is welded to the hole wall of the second connecting hole.

2. The assembly tool for the high-pressure connecting pipe of an injector according to claim 1, characterized in that: the connecting head is installed on the pressing plate (10), and the first connecting hole is provided on the outer surface of the side of the pressing plate (10) away from the connecting head.

3. The assembly tool for the high-pressure connecting pipe of an injector according to claim 1, characterized in that: the cross-sectional shape of the pressing head (6) is circular, the sealing ring (3) is set as an "O" shape, and the diameter dimension of the pressing head (6) is larger than the diameter dimension of the sealing ring (3).

4. The assembly tool for the high-pressure connecting pipe of an injector according to claim 1, characterized in that: the mounting holes are provided on the outer surface of the front end of the body (1), and a number of groups of injectors are provided on the outer surface of the top of the body (1).

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