A reaming device for a fuel injection rail

Abstract

The application relates to the technical field of pipe reaming, and discloses a reaming equipment for fuel injection oil pipes, which comprises a mounting plate, a round rod, an L-shaped plate and a handle, the handle is fixedly connected to one side of the mounting plate, the L-shaped plate is fixedly connected to the top of the mounting plate, and the round rod is fixedly connected to the inner side of the mounting plate. Through the design of the reaming mechanism, the reaming drill bit can be controlled to drill into the pipe opening part of the oil pipe during the reaming operation of the oil pipe, so that the pipe opening part is expanded to achieve the purpose of reaming and shaping. The lubricating oil is stored in the oil storage box, and the sponge block absorbs the lubricating oil. After the reaming drill bit is controlled to turn towards the sponge block and is inserted into the sponge block, the surface of the reaming drill bit is impregnated with the lubricating oil, so that the safety and stability of the subsequent reaming work are improved. Meanwhile, the device has the advantages of convenient carrying and flexible use on the basis of the functions of drilling and quickly coating lubricating oil.

Description

Technical Field

[0001] This invention relates to the field of pipeline reaming technology, and in particular to a reaming device for a fuel injection pipe. Background Technology

[0002] Fuel injection lines are a type of pipeline that carries fuel. Fuel lines are made of various materials, including stainless steel, plastic, rubber, copper, and other metals. During the processing or assembly of fuel lines, it is often necessary to enlarge the holes to accommodate different connectors. This requires the use of hole enlarging equipment for hole enlarging.

[0003] Patent publication number CN222153654U discloses an oil pipe expander, including a fixing block and a screw. The fixing block has a pipe hole on one side and a mating hole opposite to the pipe hole on the other side. A transition port is provided between the pipe hole and the mating hole. The screw is threaded into the mating hole. The end of the screw has an inclined surface with a gradually increasing cross-sectional area in the direction away from the end.

[0004] While the above devices are capable of processing oil pipes of various diameters, their overall structural design is relatively simple. In actual oil pipe reaming operations, it is often necessary to apply lubricating oil to the reaming area to protect the oil pipe and reaming components and reduce wear. This requires frequent application of lubricating oil to the reaming drill bit. Similar to existing structures, the above devices themselves do not have a lubrication function and require manual application of lubricating oil before use, which is not convenient. Therefore, a reaming device for fuel injection oil pipes is proposed to solve the above problems. Summary of the Invention

[0005] To address the aforementioned problems, the present invention provides a device for enlarging the bore of a fuel injection pipe.

[0006] The present invention provides a fuel injection pipe enlargement device using the following technical solution:

[0007] A device for enlarging a fuel injection pipe includes a mounting plate, a round rod, an L-shaped plate, and a handle. The handle is fixedly connected to one side of the mounting plate, the L-shaped plate is fixedly connected to the top of the mounting plate, the round rod is fixedly connected to the inner side of the mounting plate, an enlarging mechanism is provided on the L-shaped plate, and a positioning component is provided on the round rod.

[0008] The hole-expanding mechanism includes a frame plate, which is fixedly connected to one side of an L-shaped plate. A movable plate is slidably connected inside the frame plate. A lifting plate is provided on the top of the movable plate and penetrates through the movable plate. A rectangular frame is provided inside the movable plate. Connecting rods are fixedly connected to both side walls of the rectangular frame. The connecting rods extend out of the lifting plate and are rotatably connected to the lifting plate. A rotating rod is rotatably connected to the bottom wall of the rectangular frame. A mounting base is fixedly connected to one end of the rotating rod. A hole-expanding drill bit is provided at the bottom of the mounting base. An insert plate is fixedly connected to the top of the hole-expanding drill bit. The insert plate extends into the mounting base and matches the mounting base. An oil storage box is fixedly connected to the inside of the L-shaped plate. A vertical plate is integrally formed inside the oil storage box. A sponge block is fixedly connected to one side of the vertical plate.

[0009] By adopting the above technical solution, when performing the reaming operation of the oil pipe, the reaming drill bit can be controlled to drill into the pipe opening, thereby opening the pipe opening to achieve the purpose of reaming and shaping. The oil reservoir contains lubricating oil, and the sponge block absorbs the lubricating oil. When the reaming drill bit is controlled to rotate towards the sponge block and inserted into the sponge block, the surface of the reaming drill bit is coated with lubricating oil, which improves the safety and stability of subsequent reaming work. At the same time, this device, in addition to having the functions of drilling and quickly applying lubricating oil, also has the advantages of being portable and flexible in use.

[0010] Preferably, a threaded adjusting rod is rotatably connected inside the frame plate, the threaded adjusting rod passes through the moving plate and is threadedly connected to the moving plate, a first motor is fixedly connected to one side wall of the frame plate, the first motor is fixedly connected to one end of the threaded adjusting rod through an output shaft, and a first electric push rod is fixedly connected to the top wall of the lifting plate, one end of the first electric push rod is fixedly connected to the top of the moving plate.

[0011] By adopting the above technical solution, the first motor drives the threaded adjusting rod to rotate after it starts working.

[0012] Preferably, an auxiliary plate is fixedly connected to one side wall of the lifting plate, a guide rod is fixedly connected to the inner side of the auxiliary plate, a movable plate is slidably connected to the outer side of the guide rod, a rack is fixedly connected to the top of the movable plate, a first gear is fixedly connected to the outer side of one of the connecting rods, the first gear is disposed on the top of the rack and meshes with the rack, and a second electric push rod is fixedly connected to the movable plate, one end of the second electric push rod being fixedly connected to the inner side of the auxiliary plate.

[0013] By adopting the above technical solution, the second electric push rod pushes and pulls the movable plate horizontally after it is activated.

[0014] Preferably, a second gear is fixedly connected to the outside of the rotating rod, a second motor is fixedly connected to the top wall of the rectangular frame, and a third gear is fixedly connected to the second motor through an output shaft. The third gear is located on one side of the second gear and meshes with the second gear.

[0015] By adopting the above technical solution, the rotation of the third gear drives the rotation of the second gear.

[0016] Preferably, an opening is provided on one side wall of the oil storage box, a sealing plate is provided on the top of the oil storage box, the sealing plate extends into the interior of the oil storage box, a threaded control rod is rotatably connected to the top of the oil storage box, the threaded control rod passes through the top wall of the sealing plate and is threadedly connected to the sealing plate, the threaded control rod passes through the top wall of the L-shaped plate and is rotatably connected to the L-shaped plate, and an oil injection pipe is fixedly connected to the top of the oil storage box, an end cap is provided on the top of the oil injection pipe, the end cap extends into the interior of the oil injection pipe and matches the oil injection pipe.

[0017] By adopting the above technical solution, the threaded control lever rotates and drives the sealing plate to move up and down.

[0018] Preferably, a first locking block is slidably connected inside the insert plate, the first locking block extending sequentially out of the insert plate and the mounting base, and a first spring is fixedly connected inside the insert plate, the first spring being fixedly connected to one side of the first locking block.

[0019] By adopting the above technical solution, the first reed provides an elastic force to the first locking block.

[0020] Preferably, the movable plate has a calibration slot, the positioning component includes a frame plate, the round rod passes through the frame plate and is rotatably connected to the frame plate, the frame plate has two first slots, the round rod has a second slot, a threaded positioning rod is provided on one side of one of the first slots, the threaded positioning rod passes through the first slot and extends into the interior of the second slot, the threaded positioning rod is threadedly connected to the second slot, a first clamping plate and a second clamping plate are placed inside the frame plate, both the first clamping plate and the second clamping plate have positioning slots, an indicator strip is fixedly connected to the top of the first clamping plate, and the indicator strip is located on one side of the positioning slot.

[0021] By adopting the above technical solution, after the first clamping plate and the second clamping plate are spliced ​​together, the positioning grooves opened on the two are also spliced ​​together to form a clamping groove that can hold the oil pipe.

[0022] Preferably, a stabilizing plate is provided on one side of the frame plate, the stabilizing plate extends into the interior of the frame plate, the stabilizing plate passes through the first clamping plate, a threaded fixing rod is fixedly connected to one side wall of the frame plate, the threaded fixing rod passes through one side wall of the stabilizing plate, and a fixing ring is threadedly connected to the outside of the threaded fixing rod, the fixing ring being in contact with one side wall of the stabilizing plate.

[0023] By adopting the above technical solution, after rotating and screwing on the fixing ring on the outside of the threaded fixing rod, the stabilizing plate can be fixed on the frame plate.

[0024] Preferably, a circular groove is provided on the outer side of the second clamping plate, and a threaded control rod is provided on one side of the frame plate. The threaded control rod extends into the interior of the frame plate and is connected to the frame plate by threads. One end of the threaded control rod is rotatably connected to a contact plate, and the contact plate extends into the interior of the circular groove and matches the circular groove.

[0025] By adopting the above technical solution, after rotating the threaded control rod, the threaded control rod pushes the second clamping plate.

[0026] Preferably, two second locking blocks are slidably connected inside the second clamping plate. The second locking blocks extend out of both ends of the second clamping plate. Sliding grooves are provided on both sides of the inner cavity of the frame plate. The second locking blocks extend into the sliding grooves and match the sliding grooves. Two second springs are fixedly connected inside the second clamping plate. The second springs are fixedly connected to one side of the second locking blocks.

[0027] By adopting the above technical solution, when the second card block extends into the slide groove, it can move horizontally inside the slide groove while providing vertical limitation for the second clamping plate.

[0028] In summary, the present invention has the following beneficial technical effects:

[0029] A device for enlarging fuel injection pipes, through the design of the enlarging mechanism, allows the reaming drill bit to be controlled to drill into the pipe opening during the enlarging operation, thereby expanding the pipe opening to achieve the purpose of enlarging and shaping. The oil reservoir stores lubricating oil, and the sponge block absorbs the lubricating oil. When the reaming drill bit is controlled to rotate towards the sponge block and inserted into the sponge block, the surface of the reaming drill bit is coated with lubricating oil, which improves the safety and stability of subsequent enlarging work. In addition to having the functions of drilling and quickly applying lubricating oil, this device also has the advantages of being portable and flexible in use.

[0030] A fuel injection pipe enlarging device, through the design of a positioning component, is equipped with multiple frame plates, and the first and second clamping plates within the frame plates can be quickly replaced. This facilitates the rapid matching of various sizes or models of fuel pipes for enlarging during subsequent use, thus broadening the applicability. Furthermore, the multiple frame plates are concentrated on a single round rod, making it easier to carry and avoiding the situation where multiple parts are easily lost or cause inconvenience during traditional operations.

[0031] A reaming device for a fuel injection pipe has an indicator strip on one side of each positioning groove of the first clamping plate, with the indicator strip pointing to the center of the positioning groove. When the calibration groove on the moving plate is directly above the indicator strip, it means that the reaming drill bit is positioned directly above the pipe. The calibration groove and the indicator strip are aligned to ensure drilling accuracy. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the structure of the present invention;

[0033] Figure 2 This is a cross-sectional view of the oil storage box in this invention;

[0034] Figure 3 for Figure 2 Enlarged view of point A in the image;

[0035] Figure 4 This is a schematic diagram of the structure of the movable plate in this invention;

[0036] Figure 5 This is a cross-sectional view of the rectangular frame in this invention;

[0037] Figure 6 This is a cross-sectional view of the insert plate and mounting base after disassembly in this invention;

[0038] Figure 7 This is a schematic diagram of the structure after the frame plate and the round rod are separated in this invention;

[0039] Figure 8 This is a schematic diagram of the structure after the first and second clamping plates are separated in this invention;

[0040] Figure 9 for Figure 8 Enlarged view of point B in the image.

[0041] Explanation of reference numerals in the attached drawings: 1. Mounting plate; 2. Round rod; 3. L-shaped plate; 4. Handle; 5. Reaming mechanism; 51. Frame plate; 52. Moving plate; 53. Lifting plate; 54. Rectangular frame; 55. Connecting rod; 56. Rotating rod; 57. Mounting base; 58. Reaming drill bit; 59. Insert plate; 591. Oil reservoir; 592. Vertical plate; 593. Sponge block; 594. Threaded adjusting rod; 595. First motor; 596. First electric push rod; 597. Auxiliary plate; 598. Movable plate; 599. Rack; 581. First gear; 582. Second electric push rod; 583. Second gear; 584. Second motor 585. Third gear; 586. Opening; 587. Sealing plate; 588. Threaded control lever; 589. Oil injection pipe; 571. First locking block; 572. First spring; 6. Positioning assembly; 61. Frame plate; 62. First slot; 63. Second slot; 64. Threaded positioning rod; 65. First clamping plate; 66. Second clamping plate; 67. Positioning groove; 68. Indicator bar; 69. Stabilizing plate; 691. Threaded fixing rod; 692. Fixing ring; 693. Circular groove; 694. Threaded control lever; 695. Contact plate; 696. Second locking block; 697. Slide groove; 698. Second spring; 7. Calibration groove. Detailed Implementation

[0042] The following is in conjunction with the appendix Figure 1 - Appendix Figure 9 The present invention will be described in further detail below.

[0043] This invention discloses a device for enlarging the bore of a fuel injection pipe. (Refer to...) Figures 1-9 It includes a mounting plate 1, a round rod 2, an L-shaped plate 3 and a handle 4. The handle 4 is fixedly connected to one side of the mounting plate 1, the L-shaped plate 3 is fixedly connected to the top of the mounting plate 1, the round rod 2 is fixedly connected to the inside of the mounting plate 1, the L-shaped plate 3 is provided with a hole enlarging mechanism 5, and the round rod 2 is provided with a positioning component 6.

[0044] The hole-reaming mechanism 5 includes a frame plate 51, which is fixedly connected to one side of the L-shaped plate 3. A movable plate 52 is slidably connected inside the frame plate 51. A lifting plate 53 is provided on the top of the movable plate 52 and passes through the movable plate 52. A rectangular frame 54 is provided inside the movable plate 52. Connecting rods 55 are fixedly connected to both sides of the rectangular frame 54. The connecting rods 55 extend out of the outside of the lifting plate 53 and are rotatably connected to the lifting plate 53. A rotating rod 56 is rotatably connected to the bottom wall of the rectangular frame 54. A mounting base 57 is fixedly connected to one end of the rotating rod 56. A hole-reaming drill bit 58 is provided at the bottom of the mounting base 57. An insert plate 59 is fixedly connected to the top of the hole-reaming drill bit 58 and extends into the interior of the mounting base 57 and matches the mounting base 57.

[0045] An oil reservoir 591 is fixedly connected to the inner side of the L-shaped plate 3. A vertical plate 592 is integrally formed inside the oil reservoir 591. A sponge block 593 is fixedly connected to one side of the vertical plate 592. When performing the reaming operation of the oil pipe, the reaming drill bit 58 can be controlled to drill into the pipe opening, thereby opening the pipe opening to achieve the purpose of reaming and shaping. The oil reservoir 591 stores lubricating oil, and the sponge block 593 absorbs the lubricating oil. When the reaming drill bit 58 is controlled to flip towards the sponge block 593 and is controlled to insert into the sponge block 593, the surface of the reaming drill bit 58 is coated with lubricating oil, which improves the safety and stability of subsequent reaming work. At the same time, this device has the advantages of being portable and flexible in use, in addition to having the functions of drilling and quickly applying lubricating oil.

[0046] A threaded adjusting rod 594 is rotatably connected inside the frame plate 51. The threaded adjusting rod 594 passes through the movable plate 52 and is threadedly connected to the movable plate 52. A first motor 595 is fixedly connected to one side wall of the frame plate 51. The first motor 595 is fixedly connected to one end of the threaded adjusting rod 594 through its output shaft. A first electric push rod 596 is fixedly connected to the top wall of the lifting plate 53. One end of the first electric push rod 596 is fixedly connected to the top of the movable plate 52. After the first motor 595 is working, it drives the threaded adjusting rod 594 to rotate. An auxiliary plate 59 is fixedly connected to one side wall of the lifting plate 53. 7. A guide rod is fixedly connected to the inner side of the auxiliary plate 597. A movable plate 598 is slidably connected to the outside of the guide rod. A rack 599 is fixedly connected to the top of the movable plate 598. A first gear 581 is fixedly connected to the outside of one of the connecting rods 55. The first gear 581 is located on the top of the rack 599 and meshes with the rack 599. A second electric push rod 582 is fixedly connected to the movable plate 598. One end of the second electric push rod 582 is fixedly connected to the inner side of the auxiliary plate 597. After the second electric push rod 582 is working, it pushes and pulls the movable plate 598 horizontally.

[0047] A second gear 583 is fixedly connected to the outside of the rotating rod 56. A second motor 584 is fixedly connected to the top wall of the rectangular frame 54. A third gear 585 is fixedly connected to the second motor 584 through the output shaft. The third gear 585 is located on one side of the second gear 583 and meshes with the second gear 583. After the third gear 585 rotates, it drives the second gear 583 to rotate. An opening 586 is opened on one side wall of the oil storage box 591. A sealing plate 587 is provided on the top of the oil storage box 591.

[0048] The sealing plate 587 extends into the oil reservoir 591. A threaded control rod 588 is rotatably connected to the top of the oil reservoir 591. The threaded control rod 588 passes through the top wall of the sealing plate 587 and is threadedly connected to the sealing plate 587. The threaded control rod 588 also passes through the top wall of the L-shaped plate 3 and is rotatably connected to the L-shaped plate 3. An oil injection pipe 589 is fixedly connected to the top of the oil reservoir 591. An end cap is provided on the top of the oil injection pipe 589. The end cap extends into the oil injection pipe 589 and matches the oil injection pipe 589. After the threaded control rod 588 rotates, it drives the sealing plate 587 to move up and down. A first locking block 571 is slidably connected inside the insert plate 59. The first locking block 571 extends out of the insert plate 59 and the mounting base 57 in sequence. A first spring 572 is fixedly connected inside the insert plate 59. The first spring 572 is fixedly connected to one side of the first locking block 571 and provides an elastic force to the first locking block 571.

[0049] The movable plate 52 has a calibration slot 7. The positioning component 6 includes a frame plate 61. A round rod 2 passes through the frame plate 61 and is rotatably connected to the frame plate 61. The frame plate 61 has two first slots 62. The round rod 2 has a second slot 63. A threaded positioning rod 64 is provided on one side of one of the first slots 62. The threaded positioning rod 64 passes through the first slot 62 and extends into the second slot 63. The threaded positioning rod 64 and the second slot 63 are connected by threads. A first clamping plate 65 and a second clamping plate 66 are placed inside the frame plate 61. Both the first clamping plate 65 and the second clamping plate 66 have positioning slots 67. An indicator strip 68 is fixedly connected to the top of the first clamping plate 65. The indicator strip 68 is located on one side of the positioning slot 67. After the first clamping plate 65 and the second clamping plate 66 are spliced ​​together, the positioning slots 67 on the two are also spliced ​​together to form a clamping slot that can hold the oil pipe.

[0050] A stabilizing plate 69 is provided on one side of the frame plate 61. The stabilizing plate 69 extends into the interior of the frame plate 61 and passes through the first clamping plate 65. A threaded fixing rod 691 is fixedly connected to one side wall of the frame plate 61. The threaded fixing rod 691 passes through one side wall of the stabilizing plate 69. A fixing ring 692 is threadedly connected to the outside of the threaded fixing rod 691. The fixing ring 692 fits against one side wall of the stabilizing plate 69. After the fixing ring 692 is screwed on the outside of the threaded fixing rod 691, the stabilizing plate 69 can be fixed on the frame plate 61.

[0051] The second clamping plate 66 has a circular groove 693 on its outer side. A threaded control rod 694 is provided on one side of the frame plate 61. The threaded control rod 694 extends into the frame plate 61 and is threadedly connected to the frame plate 61. One end of the threaded control rod 694 is rotatably connected to a contact plate 695, which extends into the circular groove 693 and matches the groove 693. After rotating the threaded control rod 694, the threaded control rod 694 pushes the second clamping plate 66. Two second locking blocks are slidably connected inside the second clamping plate 66. 696, the second locking block 696 extends out of both ends of the second clamping plate 66. The inner walls of the frame plate 61 are provided with sliding grooves 697. The second locking block 696 extends into the sliding groove 697 and matches the sliding groove 697. Two second springs 698 are fixedly connected inside the second clamping plate 66. The second springs 698 are fixedly connected to one side of the second locking block 696. When the second locking block 696 extends into the sliding groove 697, it can move horizontally inside the sliding groove 697 while providing vertical limitation for the second clamping plate 66.

[0052] In actual operation, when this device is used, first connect the power supply. The grip plate in this device can be used by the user to hold it, thereby improving the flexibility of carrying and using the device. Multiple frame plates 61 are installed on the outside of the round rod 2 of this device. Different types of positioning grooves 67 can be installed in different frame plates 61. After the first clamping plate 65 and the second clamping plate 66 in the same frame plate 61 are combined, the positioning grooves 67 on the two can also be spliced ​​to form a complete positioning groove 67. Multiple positioning grooves 67 are opened on the first clamping plate 65 and the second clamping plate 66, which can meet the positioning requirements of oil pipes of different diameters. Based on the above principle, this device can adapt to the positioning requirements of various types and sizes of oil pipes when carried in a single trip.

[0053] Before the processing operation begins, the first clamping plate 65 and the second clamping plate 66 inside the frame plate 61 can be pre-replaced and installed. After the first clamping plate 65 is placed inside the frame plate 61, the stabilizing plate 69 is inserted from one side of the frame plate 61, causing the stabilizing plate 69 to penetrate the first clamping plate 65. At the same time, the threaded fixing rod 691 penetrates one side wall of the stabilizing plate 69. Then, the fixing ring 692 is screwed onto the outside of the threaded fixing rod 691 to fix the stabilizing plate 69 inside the frame plate 61, thus completing the installation of the first clamping plate 65. After that, the second locking block 696 is pushed into the second clamping plate 66, and the second clamping plate 66 is placed inside the frame plate 61. After ensuring that the second locking block 696 stops at the same height as the slide groove 697, Under the elastic force of the second spring 698, the second locking block 696 is pushed into the slide groove 697. At this time, the second locking block 696 provides a vertical limit for the second clamping plate 66, that is, the second clamping plate 66 can only move horizontally along the channel of the slide groove 697 to complete the installation of the two. At the same time, when it is necessary to install the corresponding reaming drill bit 58 according to the drilling type, the first locking block 571 on the reaming drill bit 58 is pushed into the insert plate 59, and then the insert plate 59 can be inserted into the mounting base 57. Similarly, under the elastic force of the first spring 572, after the insert plate 59 is inserted, the first locking block 571 can also extend out of the mounting base 57, and the installation of the reaming drill bit 58 can be completed quickly.

[0054] In the specific positioning process, firstly, select the frame plate 61 with the matching first clamping plate 65 and second clamping plate 66 inside, and control it to swing to directly below the frame plate 51. Then, screw the threaded positioning rod 64 into the first hole 62 corresponding to the second hole 63 to fix the frame plate 61. Then, insert the oil pipe through the matching positioning groove 67, and rotate the threaded control rod 694. The threaded control rod 694 drives the contact plate 695 to move into the round groove 693. As the threaded control rod 694 continues to move, it creates a pushing effect on the second clamping plate 66, causing the second clamping plate 66 to move towards the first clamping plate 65 until the oil pipe is tightly clamped in the positioning groove 67 of both, thus completing the positioning and clamping step of the oil pipe.

[0055] After the first motor 595 operates, it drives the threaded adjusting rod 594 to rotate. The threaded adjusting rod 594 drives the moving plate 52 to move, and the moving plate 52 drives the lifting plate 53 to move. Through the above connection relationship, it can be seen that the reaming drill bit 58 can also move horizontally at this time. After the first electric push rod 596 operates, it can push and pull the lifting plate 53 up and down, thereby controlling the up and down movement of the reaming drill bit 58. After the second motor 584 operates, it drives the third gear 585 to rotate. The third gear 585 drives the second gear 583 to rotate. The second gear 583 drives the rotating rod 56 to rotate. The rotating rod 56 drives the mounting base 57 to rotate. The mounting base 57 drives the insert... When plate 59 rotates, insert plate 59 drives the reaming drill bit 58 to rotate, thereby controlling the rotation of the reaming drill bit 58. This allows for position adjustment of the reaming drill bit 58. After positioning it above the oil pipe, it can rotate downwards to drill and perform the reaming task. During position adjustment, each positioning slot 67 of the first clamping plate 65 is provided with an indicator bar 68 on one side, and the indicator bar 68 points to the center of the positioning slot 67. When the calibration slot 7 opened on the moving plate 52 is directly above the indicator bar 68, it means that the reaming drill bit 58 is positioned directly above the oil pipe. The calibration slot 7 and the indicator bar 68 are aligned to ensure drilling accuracy.

[0056] In this device, the second electric push rod 582 operates and pushes the movable plate 598. The movable plate 598 drives the rack 599 to move, the rack 599 drives the first gear 581 to rotate, the first gear 581 drives the connecting rod 55 to rotate, the connecting rod 55 drives the rectangular frame 54 to rotate, the rectangular frame 54 drives the rotating rod 56 to rotate, the rotating rod 56 drives the mounting base 57 to rotate, the mounting base 57 drives the insert plate 59 to rotate, and the insert plate 59 drives the reaming drill bit 58 to rotate, thereby adjusting the orientation of the reaming drill bit 58. Before reaming, when it is necessary to apply lubricating oil to the outside of the reaming drill bit 58, after controlling the orientation of the reaming drill bit 58 toward the oil reservoir 591, rotate the thread control rod 588. The thread control rod 588 drives the sealing plate 587 to move upward to the top of the opening 586, and then repeats the above control of the reaming drill bit 58 to move. After the reaming drill bit 58 is moved and inserted into the sponge block 593, the lubricating oil soaked in the sponge block 593 can be fully coated on the surface of the reaming drill bit 58. After lubrication, the sealing plate 587 is moved downward to block the opening 586, thereby sealing the oil reservoir 591 to prevent lubricating oil from leaking out. When lubricating oil needs to be replenished, it can be injected through the oil injection pipe 589. Based on the above steps, lubricating oil can be quickly applied to the reaming drill bit 58 during subsequent processing. Compared with manual application, it saves more manpower and avoids the troublesome situation of the lubricating oil sticking to the hands and needing to be washed when applied manually. It also avoids the situation of needing to carry extra lubricating oil, which is easy to lose and more inconvenient to carry, thus improving the convenience of using this device.

[0057] The above are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A device for enlarging the bore of a fuel injection pipe, characterized in that: The assembly includes a mounting plate (1), a round rod (2), an L-shaped plate (3), and a handle (4). The handle (4) is fixedly connected to one side of the mounting plate (1), the L-shaped plate (3) is fixedly connected to the top of the mounting plate (1), the round rod (2) is fixedly connected to the inside of the mounting plate (1), the L-shaped plate (3) is provided with a hole-expanding mechanism (5), and the round rod (2) is provided with a positioning component (6). The hole-expanding mechanism (5) includes a frame plate (51), which is fixedly connected to one side of the L-shaped plate (3). A movable plate (52) is slidably connected inside the frame plate (51). A lifting plate (53) is provided on the top of the movable plate (52). The lifting plate (53) passes through the movable plate (52). A rectangular frame (54) is provided inside the movable plate (52). Connecting rods (55) are fixedly connected to both sides of the rectangular frame (54). The connecting rods (55) extend out of the outside of the lifting plate (53) and are rotatably connected to the lifting plate (53). A rotating rod (56) is rotatably connected to the bottom wall. One end of the rotating rod (56) is fixedly connected to a mounting base (57). A reaming drill bit (58) is provided at the bottom of the mounting base (57). An insert plate (59) is fixedly connected to the top of the reaming drill bit (58). The insert plate (59) extends into the interior of the mounting base (57) and matches the mounting base (57). An oil storage box (591) is fixedly connected to the inner side of the L-shaped plate (3). A vertical plate (592) is integrally formed inside the oil storage box (591). A sponge block (593) is fixedly connected to one side of the vertical plate (592). An auxiliary plate (597) is fixedly connected to one side wall of the lifting plate (53). A guide rod is fixedly connected to the inner side of the auxiliary plate (597). A movable plate (598) is slidably connected to the outside of the guide rod. A rack (599) is fixedly connected to the top of the movable plate (598). A first gear (581) is fixedly connected to the outside of one of the connecting rods (55). The first gear (581) is located on the top of the rack (599) and meshes with the rack (599). A second electric push rod (582) is fixedly connected to the movable plate (598). One end of the second electric push rod (582) is fixedly connected to the inner side of the auxiliary plate (597).

2. The reaming device for a fuel injection pipe according to claim 1, characterized in that: A threaded adjusting rod (594) is rotatably connected inside the frame plate (51). The threaded adjusting rod (594) passes through the moving plate (52) and is threadedly connected to the moving plate (52). A first motor (595) is fixedly connected to one side wall of the frame plate (51). The first motor (595) is fixedly connected to one end of the threaded adjusting rod (594) through its output shaft. A first electric push rod (596) is fixedly connected to the top wall of the lifting plate (53). One end of the first electric push rod (596) is fixedly connected to the top of the moving plate (52).

3. The reaming device for a fuel injection pipe according to claim 1, characterized in that: The rotating rod (56) is externally fixedly connected to a second gear (583), and a second motor (584) is fixedly connected to the top wall of the rectangular frame (54). The second motor (584) is fixedly connected to a third gear (585) through an output shaft. The third gear (585) is located on one side of the second gear (583) and meshes with the second gear (583).

4. The reaming device for a fuel injection pipe according to claim 1, characterized in that: An opening (586) is provided on one side wall of the oil storage box (591). A sealing plate (587) is provided on the top of the oil storage box (591). The sealing plate (587) extends into the interior of the oil storage box (591). A threaded control rod (588) is rotatably connected to the top of the oil storage box (591). The threaded control rod (588) passes through the top wall of the sealing plate (587) and is threadedly connected to the sealing plate (587). The threaded control rod (588) passes through the top wall of the L-shaped plate (3) and is rotatably connected to the L-shaped plate (3). An oil injection pipe (589) is fixedly connected to the top of the oil storage box (591). An end cap is provided on the top of the oil injection pipe (589). The end cap extends into the interior of the oil injection pipe (589) and matches the oil injection pipe (589).

5. The reaming device for a fuel injection pipe according to claim 1, characterized in that: The insert plate (59) is slidably connected to a first locking block (571), which extends out of the insert plate (59) and the mounting base (57) in sequence. The insert plate (59) is fixedly connected to a first spring (572), which is fixedly connected to one side of the first locking block (571).

6. The reaming device for a fuel injection pipe according to claim 1, characterized in that: The movable plate (52) has a calibration slot (7). The positioning component (6) includes a frame plate (61). The round rod (2) passes through the frame plate (61) and is rotatably connected to the frame plate (61). The frame plate (61) has two first slots (62). The round rod (2) has a second slot (63). A threaded positioning rod (64) is provided on one side of one of the first slots (62). The threaded positioning rod (64) passes through the first slot (62) and extends into the second slot (63). The threaded positioning rod (64) is threadedly connected to the second slot (63). A first clamping plate (65) and a second clamping plate (66) are placed inside the frame plate (61). The first clamping plate (65) and the second clamping plate (66) both have positioning slots (67). An indicator strip (68) is fixedly connected to the top of the first clamping plate (65). The indicator strip (68) is located on one side of the positioning slot (67).

7. The reaming device for a fuel injection pipe according to claim 6, characterized in that: A stabilizing plate (69) is provided on one side of the frame plate (61). The stabilizing plate (69) extends into the interior of the frame plate (61) and passes through the first clamping plate (65). A threaded fixing rod (691) is fixedly connected to one side wall of the frame plate (61). The threaded fixing rod (691) passes through one side wall of the stabilizing plate (69). A fixing ring (692) is threadedly connected to the outside of the threaded fixing rod (691). The fixing ring (692) fits against one side wall of the stabilizing plate (69).

8. The reaming device for a fuel injection pipe according to claim 6, characterized in that: The second clamping plate (66) has a circular groove (693) on its outer side. A threaded control rod (694) is provided on one side of the frame plate (61). The threaded control rod (694) extends into the frame plate (61) and is connected to the frame plate (61) by threads. One end of the threaded control rod (694) is rotatably connected to a contact plate (695). The contact plate (695) extends into the circular groove (693) and matches the circular groove (693).

9. The reaming device for a fuel injection pipe according to claim 6, characterized in that: The second clamping plate (66) has two second locking blocks (696) slidably connected inside. The second locking blocks (696) extend out of both ends of the second clamping plate (66). The inner walls of the frame plate (61) are provided with sliding grooves (697). The second locking blocks (696) extend into the sliding grooves (697) and match the sliding grooves (697). The second clamping plate (66) has two second springs (698) fixedly connected inside. The second springs (698) are fixedly connected to one side of the second locking blocks (696).

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