Disassembling and assembling tool for oil injector of diesel engine

Abstract

The utility model relates to the technical field of disassembly and assembly of oil nozzles, in particular to a diesel injector disassembly and assembly tool which comprises a base, a front end locking bottom plate is arranged on the upper surface of the base, and a front end locking top plate is arranged on the upper surface of the front end locking bottom plate. A locking mechanism facilitating rapid clamping and fixing of the oil sprayer is arranged between the front-end locking bottom plate and the front-end locking top plate, the top grooves are formed in the two sides of the front-end locking top plate, the hook grooves are formed in the inner walls of the top grooves, the bottom grooves are formed in the two sides of the front-end locking bottom plate, the rotating holes are formed in the side walls of the bottom grooves, and the oil sprayer is arranged in the rotating holes. And the lower pulling plate is rotationally connected to the interior of the bottom groove. According to the disassembling and assembling tool for the oil injector of the diesel engine, a pull-down plate and a locking plate are rotationally connected into top grooves and bottom grooves formed in the two sides of the front-end locking bottom plate and the two sides of the front-end locking top plate, and a locking rod connected to the top end of the locking plate is clamped into a hook groove, so that the front-end locking bottom plate and the front-end locking top plate are rapidly locked.

Description

Technical Field

[0001] The utility model relates to the technical field of disassembly and assembly of fuel injection nozzles, in particular to a disassembly and assembly tool for a fuel injector of a diesel engine. Background Art

[0002] The diesel engine nozzle is a key component in the diesel engine fuel system. Its main function is to atomize the fuel and spray it into the combustion chamber. It injects a fixed amount of fuel into the cylinder at a precise time according to the instructions of the valve mechanism, ensuring that after the spark plug ignites, the vehicle can smoothly generate the required power.

[0003] When repairing a diesel engine fuel injector with serious carbon deposits in the prior art, the fuel injector and the fuel injector locking nut are easily glued together, making it impossible to disassemble the fuel injector for maintenance. Forcible disassembly of the fuel injector will cause the fuel injector locating pin to break, and each breakage will occur in the fuel injector and the fuel injector. Using a manual drill to remove the broken locating pin will cause the contact surface of the fuel injector to be uneven, partially fall off, burrs and other damage, and the requirements of installation accuracy and surface finish cannot be met. After reinstallation, the fuel injector will run, bubble, and drip, and cannot be used normally. Based on the shortcomings of the existing technology, the utility model designs a diesel engine fuel injector disassembly and assembly tool. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a diesel engine fuel injector disassembly and assembly tool, which has the advantages of rapid fixation and disassembly of the fuel injector nozzle.

[0005] The utility model provides the following technical solution: a diesel engine injector disassembly and assembly tool, comprising a base, wherein the upper surface of the base is provided with a front locking bottom plate, the upper surface of the front locking bottom plate is provided with a front locking top plate, and a locking mechanism is provided between the front locking bottom plate and the front locking top plate for quickly clamping the injector;

[0006] The locking mechanism includes a top groove, a hook groove, a bottom groove, a rotating hole, a pull-down plate, a rotating shaft, a rotating groove, a locking plate, a locking rod and a pull rod. The top groove is opened on both sides of the front locking top plate, the hook groove is opened on the inner wall of the top groove, the bottom groove is opened on both sides of the front locking bottom plate, the rotating hole is opened on the side wall of the bottom groove, the pull-down plate is rotatably connected to the inside of the bottom groove, the rotating shaft is fixedly connected to both sides of the pull-down plate, the rotating groove is opened on the outside of the pull-down plate, the bottom end of the locking plate is rotatably connected to the inside of the rotating groove, the locking rod is fixedly connected to the top of the locking plate, and the pull rod is fixedly connected to the pull-down plate.

[0007] As an optimal technical solution of the present invention, a movable groove is provided on the top of the front locking bottom plate, a limiting sliding rod is fixedly connected to the bottom of the front locking top plate, and a spring is provided inside the movable groove.

[0008] As an optimal technical solution of the present invention, fixed grooves are opened at both ends of the upper surface of the base, fixing bolts are inserted into the fixed grooves, the upper surface of the base is fixedly connected to a middle support plate, the upper surface of the base is fixedly connected to a rear fixing plate, and a ferrule hole is opened on the rear fixing plate.

[0009] As an optimal technical solution of the present invention, the middle support plate is arranged in the middle section of the upper surface of the base close to the front locking bottom plate, and the rear fixing plate is arranged at one end of the upper surface of the base away from the front locking bottom plate.

[0010] As a preferred technical solution of the present invention, the limiting sliding rod is slidably inserted into the interior of the movable groove.

[0011] As a preferred technical solution of the present invention, the spring is arranged between the bottom end of the limiting slide rod and the bottom of the inner cavity of the movable groove.

[0012] As a preferred technical solution of the present invention, the rotating shaft is rotatably connected to the inside of the rotating hole.

[0013] As a preferred technical solution of the present invention, the locking plate is movably connected to the inside of the top groove, and the locking rod is movably clamped to the inside of the hook groove.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The tool for disassembling and assembling a diesel engine injector is constructed by placing the base on a bench vise, passing the fixing bolt through the fixing slot and connecting it to the bench vise to fix the base. At this time, the pull rod is pulled to rotate the lower pull plate, pushing the locking plate and the locking rod upward, and the locking rod is pulled out of the hook slot to disengage the locking of the front locking top plate. The spring pushes the limit slide rod and the front locking top plate to move upward quickly to increase the distance between the front locking bottom plate and the front locking top plate. At this time, the front end of the injector is placed between the front locking bottom plate and the front locking top plate, the tail end is inserted into the ferrule hole and supported by the middle support plate. At this time, the injector is lowered. The front locking top plate is pressed a certain distance so that the locking rod enters the top groove and re-engages with the hook groove. Then the pull-down plate is pressed and rotated into the bottom groove under the limit of the rotating shaft and the rotating hole. As the pull-down plate rotates, the locking plate and the locking rod are pulled down and the front locking top plate engaged with it is also driven to move down to clamp the injector until the pull-down plate is completely entered into the bottom groove and the locking plate is completely entered into the top groove and the rotating groove, and the outer sides of the pull-down plate and the locking plate are kept flush with the outer sides of the front locking bottom plate and the front locking top plate to complete the locking. This device is convenient for quickly fixing and disassembling the injector. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the disassembly and assembly tool of the utility model when viewed from above;

[0018] Figure 3 This is a schematic diagram of the exploded structure of the base and fixing bolts of the utility model;

[0019] Figure 4 This is a schematic diagram of the front locking bottom plate and the front locking top plate structure of the utility model;

[0020] Figure 5 This is a schematic diagram of the explosion structure of the locking mechanism of the utility model.

[0021] In the figure: 1. Base; 101. Fixed through slot; 102. Fixed bolt; 103. Middle support plate; 104. Rear fixed plate; 105. Socket hole; 2. Front locking bottom plate; 201. Movable slot; 202. Limiting slide rod; 203. Front locking top plate; 204. Spring; 3. Locking mechanism; 301. Top slot; 302. Hook slot; 303. Bottom slot; 304. Rotating hole; 305. Pull-down plate; 306. Rotating shaft; 307. Rotating slot; 308. Locking plate; 309. Locking rod; 310. Pull rod. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-5 , a diesel engine injector disassembly and assembly tool comprises a base 1, the upper surface of the base 1 is provided with a front end locking base plate 2, the upper surface of the front end locking base plate 2 is provided with a front end locking top plate 203, and a locking mechanism 3 is provided between the front end locking base plate 2 and the front end locking top plate 203 for quickly clamping the injector. Fixed through grooves 101 are penetrated at both ends of the upper surface of the base 1, and fixing bolts 102 are inserted into the fixed through grooves 101. A middle support plate 103 is fixedly connected to the upper surface of the base 1, and a rear section fixing plate 104 is fixedly connected to the upper surface of the base 1. A ferrule hole 105 is penetrated on the rear section fixing plate 104. The middle section support plate 103 is arranged at a position close to the front end locking base plate 2 in the middle section of the upper surface of the base 1, and the rear section fixing plate 104 is arranged at one end of the upper surface of the base 1 away from the front end locking base plate 2.

[0024] See also Figure 5, locking mechanism 3, the locking mechanism 3 includes a top groove 301, a hook groove 302, a bottom groove 303, a rotating hole 304, a pull-down plate 305, a rotating shaft 306, a rotating groove 307, a locking plate 308, a locking rod 309 and a pull rod 310, the top groove 301 is opened on both sides of the front locking top plate 203, the hook groove 302 is opened on the inner wall of the top groove 301, the bottom groove 303 is opened on both sides of the front locking bottom plate 2, the rotating hole 304 is opened on the side wall of the bottom groove 303, and the pull-down plate 305 is rotatably connected to the bottom groove Inside 303, the rotating shaft 306 is fixedly connected to both sides of the pull-down plate 305, the rotating groove 307 is opened on the outside of the pull-down plate 305, the bottom end of the locking plate 308 is rotatably connected to the inside of the rotating groove 307, the locking rod 309 is fixedly connected to the top of the locking plate 308, the pull rod 310 is fixedly connected to the pull-down plate 305, the rotating shaft 306 is rotatably connected to the inside of the rotating hole 304, the locking plate 308 is movably connected to the inside of the top groove 301, and the locking rod 309 is movably clamped to the inside of the hook groove 302.

[0025] By providing the hook groove 302, the pull-down plate 305, the locking plate 308 and the locking rod 309, the front end locking top plate 203 can be pulled down to clamp the front end of the injector. By providing the top groove 301, the bottom groove 303 and the rotation groove 307, the pull-down plate 305 and the locking plate 308 can be kept flush with the side of the front end locking bottom plate 2, thereby achieving the locking of the locking plate 308 and the locking rod 309 after being pulled down, preventing the locking plate 308 and the locking rod 309 from loosening after being pulled down and locked, causing the injector to be unlocked during the disassembly and assembly process.

[0026] See also Figure 4 A movable groove 201 is provided at the top of the front locking base plate 2, and a limiting slide rod 202 is fixedly connected to the bottom of the front locking top plate 203. A spring 204 is provided inside the movable groove 201, and the limiting slide rod 202 is slidably inserted into the inside of the movable groove 201. The spring 204 is provided between the bottom end of the limiting slide rod 202 and the bottom of the inner cavity of the movable groove 201.

[0027] By setting the front end locking base plate 2 and the front end locking top plate 203, the front end of the injector can be clamped. By setting the movable groove 201, the limiting slide rod 202 and the spring 204, when the locking mechanism 3 does not lock the front end locking base plate 2 and the front end locking top plate 203, the spring 204 can push the limiting slide rod 202 and the front end locking top plate 203 to move upward and at the same time support the front end locking top plate 203 to prevent it from moving downward.

[0028] Working principle: when a diesel engine injector disassembly and assembly tool is used, in the initial state, the front locking bottom plate 2, the front locking top plate 203, the middle support plate 103 and the rear fixing plate 104 are first arranged on the upper surface of the base 1, and the fixing through grooves 101 opened at both ends of the base 1 are plugged with fixing bolts 102, so as to facilitate the installation and fixation of the base 1 on the bench vise and fix the injector, and the limiting slide rod 202 fixedly connected to the bottom of the front locking top plate 203 is slidably inserted into the movable groove 201 opened on the top of the front locking bottom plate 2, and the movable groove 202 is fixed to the bottom of the front locking top plate 203. The spring 204 provided in 01 pushes the limiting slide rod 202, so that when the front locking bottom plate 2 and the front locking top plate 203 are not locked by the locking mechanism 3, the spring 204 can quickly release the fixation of the injector, and the top groove 301 and the bottom groove 303 opened on both sides of the front locking bottom plate 2 and the front locking top plate 203 are rotatably connected with the pull-down plate 305 and the locking plate 308, and the locking rod 309 connected to the top end of the locking plate 308 is clamped in the hook groove 302, so as to quickly lock the front locking bottom plate 2 and the front locking top plate 203;

[0029] When it is necessary to quickly fix and disassemble the injector, first place the base 1 on the bench vise, pass the fixing bolt 102 through the fixing slot 101 and connect it to the bench vise to fix the base 1, then pull the pull rod 310 to rotate the lower pull plate 305 to push the locking plate 308 and the locking rod 309 upward, and pull the locking rod 309 out of the hook slot 302 to disengage the locking of the front locking top plate 203, and the spring 204 pushes the limiting slide rod 202 and the front locking top plate 203 to move up quickly to increase the distance between the front locking bottom plate 2 and the front locking top plate 203. At this time, the front end of the injector is placed between the front locking bottom plate 2 and the front locking top plate 203, the tail end is inserted into the ferrule hole 105 and supported by the middle support plate 103, and the front end is pressed downward. When the locking plate 305 is fully engaged with the front locking plate 301, the locking plate 308 and the locking rod 309 are pulled downward to clamp the injector, until the lower pull-down plate 305 is completely engaged with the bottom groove 303 and the locking plate 308 is completely engaged with the top groove 301 and the rotating groove 307, and the outer sides of the lower pull-down plate 305 and the locking plate 308 are kept flush with the outer sides of the front locking bottom plate 2 and the front locking top plate 203 to complete the locking. This device is convenient for quickly fixing and disassembling the injector.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A diesel engine injector disassembly and assembly tool, comprising a base (1), characterized in that: The upper surface of the base (1) is provided with a front locking bottom plate (2), the upper surface of the front locking bottom plate (2) is provided with a front locking top plate (203), and a locking mechanism (3) for quickly clamping the injector is provided between the front locking bottom plate (2) and the front locking top plate (203); The locking mechanism (3) comprises a top groove (301), a hook groove (302), a bottom groove (303), a rotating hole (304), a pull-down plate (305), a rotating shaft (306), a rotating groove (307), a locking plate (308), a locking rod (309) and a pull rod (310), wherein the top groove (301) is provided on both sides of the front locking top plate (203), the hook groove (302) is provided on the inner wall of the top groove (301), and the bottom groove (303) is provided on both sides of the front locking bottom plate (2). The rotating hole (304) is provided on the side wall of the bottom groove (303), the pull-down plate (305) is rotatably connected to the inside of the bottom groove (303), the rotating shaft (306) is fixedly connected to both sides of the pull-down plate (305), the rotating groove (307) is provided on the outside of the pull-down plate (305), the bottom end of the locking plate (308) is rotatably connected to the inside of the rotating groove (307), the locking rod (309) is fixedly connected to the top end of the locking plate (308), and the pull rod (310) is fixedly connected to the pull-down plate (305).

2. A diesel engine injector disassembly and assembly tool according to claim 1, characterized in that: A movable groove (201) is provided on the top of the front locking bottom plate (2), a limiting sliding rod (202) is fixedly connected to the bottom of the front locking top plate (203), and a spring (204) is provided inside the movable groove (201).

3. A diesel engine injector disassembly and assembly tool according to claim 1, characterized in that: Both ends of the upper surface of the base (1) are provided with fixing grooves (101), fixing bolts (102) are inserted into the fixing grooves (101), a middle support plate (103) is fixedly connected to the upper surface of the base (1), a rear fixing plate (104) is fixedly connected to the upper surface of the base (1), and a ferrule hole (105) is provided on the rear fixing plate (104).

4. A diesel engine fuel injector disassembly and assembly tool according to claim 3, characterized in that: The middle support plate (103) is arranged at a position in the middle section of the upper surface of the base (1) close to the front locking base plate (2), and the rear fixing plate (104) is arranged at an end of the upper surface of the base (1) away from the front locking base plate (2).

5. A diesel engine fuel injector disassembly and assembly tool according to claim 2, characterized in that: The limiting sliding rod (202) is slidably inserted into the interior of the movable groove (201).

6. A diesel engine injector disassembly and assembly tool according to claim 2, characterized in that: The spring (204) is arranged between the bottom end of the limiting sliding rod (202) and the bottom of the inner cavity of the movable groove (201).

7. A diesel engine fuel injector disassembly and assembly tool according to claim 1, characterized in that: The rotating shaft (306) is rotatably connected to the inside of the rotating hole (304).

8. A diesel engine fuel injector disassembly and assembly tool according to claim 1, characterized in that: The locking plate (308) is movably connected to the inside of the top groove (301), and the locking rod (309) is movably engaged with the inside of the hook groove (302).

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