A hand bender for turbojet engine fuel feed lines

Abstract

The application discloses a manual pipe bending device for a turbojet engine oil supply pipeline, which comprises a base plate, a positioning column, a rotating disc and a bending die; the top end of the positioning column is fixedly provided with a pipe bending module for pipeline bending; the rotating disc is slidingly sleeved outside the positioning column, a handle is fixedly connected to the sidewall of the rotating disc, the top end of the rotating disc is fixedly connected to a limiting block, and the limiting block is correspondingly arranged with the pipe bending module; an angle scale is arranged on the base plate, and the angle scale is used for determining the rotation angle of the rotating disc during pipe bending; the bending die is correspondingly arranged with the pipe bending module, and the bending die is used for determining the interval of pipeline bending. Through the arrangement of the pipe bending module, the pipeline is positioned, and through the bending die, the bending position and the bending interval of the pipeline are determined. When the pipeline is bent, the required interval does not need to be repeatedly measured, and after the pipeline is bent, the pipeline can be positioned again through the bending die and the pipe bending module, so that the operation is simple, and the consistency of batch production is high.

Description

Technical Field

[0001] The invention relates to the technical field of pipe bending tools, in particular to a manual pipe bending device for a turbojet engine oil supply pipeline. Background Art

[0002] In the narrow space layout of the engine, the external pipes of the engine need to be bent with different bending radii to avoid other engine accessories, thereby achieving the installation of the pipes.

[0003] When the existing manual pipe bender has a large number of bends on the same pipe, the pipe bending spacing cannot be accurately controlled and the required spacing needs to be measured repeatedly. The operation steps are cumbersome, resulting in poor consistency in batch production.

[0004] Therefore, a manual pipe bending device for a turbojet engine oil supply line is proposed to solve the problems existing in the above-mentioned prior art. Summary of the Invention

[0005] The purpose of the present invention is to provide a manual pipe bending device for the oil supply pipeline of a turbojet engine to solve the problems existing in the above-mentioned prior art.

[0006] To achieve the above-mentioned object, the present invention provides a manual pipe bending device for a turbojet engine oil supply line, comprising:

[0007] A bottom plate, wherein a plurality of mounting holes are formed on the bottom plate;

[0008] A positioning column, the positioning column is fixedly mounted on the base plate through the mounting hole, and a bending module for bending the pipeline is fixedly provided on the top of the positioning column;

[0009] A rotating disk is slidably sleeved on the outer side of the positioning column, a handle is fixedly connected to the side wall of the rotating disk, and a limit block is fixedly connected to the top of the rotating disk, and the limit block is correspondingly arranged with the bending module; an angle scale line is provided on the bottom plate, and the angle scale line is used to determine the rotation angle of the rotating disk during the bending process;

[0010] A bending die is fixedly mounted on the bottom plate and is arranged corresponding to the pipe bending module. The bending die is used to determine the spacing of the pipe bending.

[0011] Preferably, the bending pipe module includes a pair of relatively arranged positioning blocks, a gap for placing the pipeline is provided between the two positioning blocks, and the gap is provided along the radial direction of the positioning column; wherein, one end of one of the positioning blocks close to the limit block is an arc-shaped structure, and the arc-shaped structure is located on the side of the positioning block close to the gap.

[0012] Preferably, the top surface of the bending die is provided with two forming grooves, the groove bottom of the forming grooves is flush with the top surface of the positioning column;

[0013] One of the forming grooves comprises a horizontal positioning segment and a first V-shaped positioning segment, the horizontal positioning segment is on the same axis with the gap, and the horizontal positioning segment is provided with a first pipeline positioning surface at one end close to the first V-shaped positioning segment;

[0014] The other forming groove comprises a straight line positioning segment and a second V-shaped positioning segment, an included angle is arranged between the straight line positioning segment and the gap, and the straight line positioning segment is provided with a second pipeline positioning surface at one end close to the second V-shaped positioning segment; the structure of the second V-shaped positioning segment is the same as the mirror structure of the first V-shaped positioning segment.

[0015] Preferably, the top of the positioning column is provided with an electromagnetic heating coil, and the electromagnetic heating coil is used for heating the bending part of the pipeline.

[0016] Preferably, one end of the limiting block is in sliding fit with the top surface of the positioning column, the top of the positioning column is fixedly provided with an iron plate, and the end of the limiting block in contact with the positioning column is provided with an electromagnet, when the electromagnet is electrified, the limiting block is magnetically attracted and fixed with the positioning column.

[0017] The handle is provided with a switch one, and the switch one is used for controlling the circuit on-off of the electromagnet.

[0018] Preferably, it further comprises:

[0019] The power assisting mechanism is installed on the side of the bottom plate away from the rotating disc, and is used for assisting driving the rotating disc to rotate.

[0020] Preferably, the power assisting mechanism comprises:

[0021] The shell is fixedly installed on the bottom plate;

[0022] The torsional spring is arranged in the shell and coaxially arranged with the positioning column; an arc-shaped through hole is formed in the bottom plate, one end of the torsional spring passes through the arc-shaped through hole and is fixedly connected with the rotating disc, and the other end of the torsional spring is fixedly connected with the shell; when the rotating disc is in the initial position, the torsional spring is in the stressed state.

[0023] Preferably, the power assisting mechanism comprises:

[0024] The shell is fixedly installed on the bottom plate;

[0025] The motor is fixedly arranged in the shell;

[0026] A gear transmission assembly, wherein a through hole is provided on the bottom plate, the interior of the rotating disk is a cavity, an annular gear ring is fixedly connected to one side wall of the cavity, the annular gear ring is coaxially arranged with the positioning column, and the motor and the rotating disk are driven and matched through the gear transmission assembly and the annular gear ring;

[0027] Switch 2 is provided on the handle and is used to control the start and stop of the motor.

[0028] Preferably, the gear transmission assembly includes:

[0029] A large gear, the large gear being fixedly mounted on the output shaft of the motor;

[0030] a rotating shaft, one end of which is rotatably connected to the housing, and the other end of which extends into the cavity through the through hole;

[0031] A small gear, wherein the small gear is fixedly sleeved on the rotating shaft and meshes with the large gear;

[0032] A meshing gear is fixedly sleeved on the rotating shaft and meshes with the annular gear ring.

[0033] Preferably, a plurality of stops are slidably provided on the bottom plate, wherein two of the stops are used to limit the initial position of the rotating disk, and the remaining stops are provided along the circumference of the rotating disk to limit the rotation angle of the rotating disk.

[0034] Compared with the prior art, the present invention has the following advantages and technical effects:

[0035] The manual pipe bending device for the turbojet engine fuel supply pipeline provided by the present invention positions the pipeline by setting a pipe bending module, and determines the bending position and bending spacing of the pipeline by a bending die. When bending the pipeline, there is no need to repeatedly measure the required spacing. After bending the pipeline once, the rotating disk is reset, and the pipeline can be positioned again by the bending die and the pipe bending module, which is convenient for the next bending operation. The device has the advantages of simple operation and strong consistency in batch production. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0037] Figure 1This is a schematic structural diagram of a manual pipe bending device for a turbojet engine oil supply line in a first embodiment of the present invention;

[0038] Figure 2 This is a state diagram of the rotating disk in the first embodiment of the present invention when it is in the initial position;

[0039] Figure 3 This is a diagram showing the state of the pipeline after the first bending in Example 1 of the present invention;

[0040] Figure 4 This is a state diagram of the pipeline before the second bending in Example 1 of the present invention;

[0041] Figure 5 This is a diagram showing the state of the pipeline after the second bending in Example 1 of the present invention;

[0042] Figure 6 This is a diagram showing the state of the pipeline after the third bending in Example 1 of the present invention;

[0043] Figure 7 This is a diagram showing the state of the pipeline after the fourth bend in Example 1 of the present invention;

[0044] Figure 8 This is a schematic structural diagram of a manual pipe bending device for a turbojet engine oil supply line in a second embodiment of the present invention;

[0045] Figure 9 This is a schematic structural diagram of a manual pipe bending device for a turbojet engine oil supply line in a third embodiment of the present invention;

[0046] Figure 10 This is a schematic structural diagram of a power assist mechanism of the first structural form in the third embodiment of the present invention;

[0047] Figure 11 This is a schematic structural diagram of a power assist mechanism of the second structural form in the third embodiment of the present invention;

[0048] Figure 12 This is a diagram showing a state in which the top of the stopper is flush with the top surface of the bottom plate in the fourth embodiment of the present invention;

[0049] Figure 13 This is a state diagram of the stopper in the fourth embodiment of the present invention when the top end extends out of the top surface of the bottom plate;

[0050] In the figure: 1. Base plate; 2. Positioning column; 3. Rotating disk; 4. Handle; 5. Limit block; 6. Bending mold; 61. Horizontal positioning section; 62. First V-shaped positioning section; 63. First pipeline positioning surface; 64. Straight line positioning section; 65. Second V-shaped positioning section; 66. Second pipeline positioning surface; 7. Positioning block; 8. Electromagnetic heating coil; 9. Power assist mechanism; 91. Housing; 92. Torsion spring; 93. Motor; 94. Annular gear ring; 95. Large gear; 96. Rotating shaft; 97. Small gear; 98. Meshing gear; 10. Stop block; 101. Connecting plate. DETAILED DESCRIPTION

[0051] It should be noted that, unless there is a conflict, the embodiments of the present invention and the features of the embodiments may be combined with each other. The embodiments described are only some of the embodiments of the present invention, not all of them. All other embodiments obtained by those of ordinary skill in the art without creative work are within the scope of protection of the present invention. The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0052] Example 1

[0053] like Figure 1 As shown, the present invention provides a manual pipe bending device for a turbojet engine oil supply pipeline, comprising:

[0054] Base plate 1, with multiple mounting holes formed on the base plate 1;

[0055] Positioning column 2, which is fixedly mounted on the base plate 1 through the mounting hole, and a pipe bending module for pipe bending is fixedly provided on the top of the positioning column 2;

[0056] The rotating disk 3 is slidably sleeved on the outside of the positioning column 2. A handle 4 is fixedly connected to the side wall of the rotating disk 3. The top of the rotating disk 3 is fixedly connected to a limit block 5. The limit block 5 is corresponding to the pipe bending module. An angle scale line is set on the bottom plate 1. The angle scale line is used to determine the rotation angle of the rotating disk 3 during the pipe bending process.

[0057] The bending die 6 is fixedly mounted on the bottom plate 1 and is arranged corresponding to the pipe bending module. The bending die 6 is used to determine the spacing of the pipe bending.

[0058] When the present invention is in use, the pipeline to be bent is placed on the top of the positioning column 2, and the pipeline is clamped by the bending module. At this time, the rotating disk 3 is in the initial position, and the limit block 5 is in contact with the clamped pipeline. Then the rotating disk 3 is rotated by the handle 4, and the limiting effect between the limit block 5 and the bending module is utilized to bend the pipeline. Before bending the pipeline, the bending mold 6 is used to determine the bending spacing of the pipeline, thereby ensuring that the finished product of the pipeline after bending is highly consistent.

[0059] The present invention positions the pipeline by setting up the bending module, and determines the bending position and bending spacing of the pipeline by the bending die 6. There is no need to repeatedly measure the required spacing when bending the pipeline. After bending the pipeline once, the rotating disk 3 is reset, and the pipeline can be positioned again by the bending die 6 and the bending module, which is convenient for the next bending operation. It has the advantages of simple operation and strong consistency in batch production.

[0060] A further optimized solution is that the bending pipe module includes a pair of relatively arranged positioning blocks 7, a gap for placing the pipeline is provided between the two positioning blocks 7, and the gap is provided along the radial direction of the positioning column 2; wherein, one end of a positioning block 7 close to the limit block 5 is an arc-shaped structure, and the arc-shaped structure is located on the side of the positioning block 7 close to the gap.

[0061] Further optimized, the top surface of the bending die 6 is provided with two forming grooves, the bottom of the forming grooves is flush with the top surface of the positioning column 2;

[0062] A forming groove includes a horizontal positioning section 61 and a first V-shaped positioning section 62. The horizontal positioning section 61 and the gap are located on the same axis. A first pipeline positioning surface 63 is provided at one end of the horizontal positioning section 61 close to the first V-shaped positioning section 62.

[0063] Another forming groove includes a straight positioning section 64 and a second V-shaped positioning section 65. An angle is set between the straight positioning section 64 and the gap. A second pipeline positioning surface 66 is set at one end of the straight positioning section 64 close to the second V-shaped positioning section 65; the structure of the second V-shaped positioning section 65 is the same as the mirror image structure of the first V-shaped positioning section 62.

[0064] The manual pipe bending device for the turbojet engine oil supply line provided by the present invention has the following specific operation process:

[0065] S1. Select a suitable bending die 6 according to the bending requirements of the pipe to be bent, and fix the bending die 6 on the base plate 1;

[0066] S2, make the rotating disk 3 in the initial position, place one end of the pipe to be bent against the first pipe positioning surface 63, and at the same time, make the pipe be located in the gap between the two positioning blocks 7, as shown in FIG. Figure 2 As shown;

[0067] S3. According to the angle of the first V-shaped positioning section 62, the handle 4 is used to rotate the rotating disk 3, and the limit block 5 on the rotating disk 3 is used to bend the pipeline. The angle of the pipeline bending is determined according to the angle scale line on the bottom plate 1 until the angle of the pipeline bending is the same as the angle of the first V-shaped positioning section 62. Figure 3 As shown;

[0068] S4, take out the pipe that has been bent once, make the bent end of the pipe rest against the second pipe positioning surface 66, and make the pipe be stuck between the two positioning blocks 7, as shown in FIG. Figure 4 Then, by rotating the rotary disk 3 by the handle 4, the pipeline is bent again, and the bending angle is the angle between the horizontal positioning section 61 and the first V-shaped positioning section 62, as shown Figure 5 As shown;

[0069] S5, the second bent portion of the pipeline is adapted to the shape of the forming groove with the horizontal positioning section 61. After the pipeline passes through the forming groove to determine the spacing of the pipeline bending, the handle 4 and the limit block 5 are used to bend the pipeline for the third time. Figure 6 As shown;

[0070] S6, after the pipe bent in S5 passes through another forming groove to determine the bending distance of the pipe, the pipe is bent for the fourth time using the handle 4 and the limit block 5. Figure 7 As shown; the bending operation of the pipeline is completed.

[0071] Example 2

[0072] like Figure 8 As shown, the only difference between this embodiment and the first embodiment is that, in order to reduce and eliminate the rebound amount after the pipe is bent, thereby ensuring that the bent pipe can be normally placed in the forming groove, and ensuring the consistency of the size of the finished product after the pipe is bent, an electromagnetic heating coil 8 is arranged on the top of the positioning column 2, and the electromagnetic heating coil 8 is used to heat the bent part of the pipe.

[0073] During the specific bending operation, each time the pipeline is bent, the electromagnetic heating coil 8 needs to be started to heat the bent portion of the pipeline to soften the pipeline material, reduce the yield stress of the pipeline material, and thus reduce the rebound amount.

[0074] A further optimized solution is to heat the bent portion of the pipeline so that one end of the limit block 5 is slidably engaged with the top surface of the positioning column 2 to keep the position of the rotating disk 3 unchanged. An iron plate is fixed to the top of the positioning column 2. An electromagnet is provided at the end of the limit block 5 that contacts the positioning column 2. When the electromagnet is energized, the limit block 5 is magnetically fixed to the positioning column 2.

[0075] A switch 1 is provided on the handle 4, and the switch 1 is used to control the on-off of the circuit of the electromagnet.

[0076] The positioning post 2 is fixed by magnetic attraction of the electromagnet so that the relative position of the positioning post 2 and the limit block 5 will not change, thereby ensuring that the pipeline will not be deformed again when the bent part of the pipeline is heated.

[0077] Example 3

[0078] like Figure 9 As shown, the difference between this embodiment and the first and second embodiments is that a power-assisting mechanism 9 is added, and the power-assisting mechanism 9 assists in the bending operation of the pipeline, thereby reducing the labor intensity of the workers. Specifically, the power-assisting mechanism 9 is installed on the side of the base plate 1 away from the rotating disk 3, and the power-assisting mechanism 9 is used to assist in driving the rotating disk 3 to rotate.

[0079] The power assist mechanism 9 can adopt two structural forms. The first one is a structural form that relies on the structure itself and does not require an additional external power supply; the second one is a structural form that relies on an external power supply.

[0080] like Figure 10 As shown, the first structural form of the power assist mechanism 9 includes:

[0081] The housing 91 is fixedly mounted on the base plate 1;

[0082] Torsion spring 92, torsion spring 92 is arranged in the shell 91 and is coaxially arranged with the positioning column 2; an arc-shaped through hole is opened on the base plate 1, one end of the torsion spring 92 passes through the arc-shaped through hole and is fixedly connected to the rotating disk 3, and the other end of the torsion spring 92 is fixedly connected to the shell 91; when the rotating disk 3 is in the initial position, the torsion spring 92 is in a stressed state.

[0083] With this type of structural assist mechanism 9, when the rotating disk 3 is in the initial position, the torsion spring 92 itself is in a stressed state. During the process of bending the pipeline using the rotating disk 3, the torsion spring 92 gradually recovers, and the elastic force of the torsion spring 92 assists the manual bending process, thereby reducing the labor intensity of the workers.

[0084] like Figure 11 As shown, the second structural form of the power assist mechanism 9 includes:

[0085] The housing 91 is fixedly mounted on the base plate 1;

[0086] The motor 93 is fixedly disposed in the housing 91;

[0087] Gear transmission assembly, a through hole is opened on the bottom plate 1, the interior of the rotating disk 3 is a cavity, and an annular gear ring 94 is fixedly connected to one side wall of the cavity. The annular gear ring 94 is coaxially arranged with the positioning column 2. The motor 93 and the rotating disk 3 are driven and matched through the gear transmission assembly and the annular gear ring 94;

[0088] Switch 2: Switch 2 is set on the handle 4 and is used to control the opening and closing of the motor 93.

[0089] Among them, the gear transmission assembly includes:

[0090] The large gear 95 is fixedly mounted on the output shaft of the motor 93;

[0091] A rotating shaft 96, one end of which is rotatably connected to the housing 91, and the other end of which extends into the cavity through the through hole;

[0092] Small gear 97, small gear 97 is fixedly sleeved on the rotating shaft 96, and small gear 97 is meshed with large gear 95;

[0093] The meshing gear 98 is fixedly sleeved on the rotating shaft 96 and meshes with the annular gear ring 94 .

[0094] When performing a pipe bending operation, the assist mechanism 9 of this structure activates the motor 93 via switch 2, which drives the large gear 95 to rotate. The large gear 95 drives the small gear 97 to rotate. The small gear 97 drives the meshing gear 98 via the rotating shaft 96, thereby driving the rotating disk 3 to rotate via the meshing gear 98 and the annular gear ring 94. The provision of the motor 93 can significantly reduce the force applied by workers when bending the pipe, thereby alleviating the worker's labor intensity.

[0095] Example 4

[0096] To further optimize the solution, in order to quickly determine the rotation angle of the rotating disk 3, improve the efficiency of pipeline bending, and facilitate positioning of the initial position of the rotating disk 3, a plurality of blocks 10 are slidingly arranged on the base plate 1, wherein two blocks 10 are used to limit the initial position of the rotating disk 3, and the remaining blocks 10 are arranged along the circumference of the rotating disk 3 to limit the rotation angle of the rotating disk 3.

[0097] When in use, the top and bottom of the stopper 10 can extend out of the top and bottom surfaces of the bottom plate 1 respectively, that is, when the top end of the stopper 10 extends out of the top surface of the bottom plate 1, the bottom end of the stopper 10 enters the interior of the bottom plate 1; conversely, when the top end of the stopper 10 enters the interior of the bottom plate 1, the bottom end of the stopper 10 extends out of the bottom surface of the bottom plate 1. Figure 12 and 13 shown.

[0098] The stopper 10 maintains its current position through friction with the base plate 1. To prevent the stopper 10 from falling off the base plate 1, a receiving cavity is provided within the base plate 1, and a connecting plate 101 is disposed within the cavity to secure the connecting plate 10 to the stopper 10, thereby preventing the stopper 10 from falling off the base plate 1. Furthermore, to increase the friction between the stopper 10 and the base plate 1, an elastic gasket is coated on the bottom of the stopper 10. The deformation of the gasket allows the stopper 10 to be stuck to the base plate 1 without affecting the upward and downward sliding motion of the stopper 10.

[0099] By controlling the top end of the stopper 10 at different positions to extend out of the bottom plate 1, the movable range of the handle 4 can be limited, thereby facilitating the bending operation of the pipeline.

[0100] The above merely describes the preferred embodiments of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical scope disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A manual pipe bending device for a turbojet engine oil supply line, characterized in that: include: A bottom plate (1), wherein a plurality of mounting holes are provided on the bottom plate (1); A positioning column (2), the positioning column (2) being fixedly mounted on the base plate (1) through the mounting hole, and a pipe bending module for pipe bending being fixedly provided on the top end of the positioning column (2); A rotating disk (3) is slidably sleeved on the outer side of the positioning column (2); a handle (4) is fixedly connected to the side wall of the rotating disk (3); a limit block (5) is fixedly connected to the top of the rotating disk (3); the limit block (5) is correspondingly arranged with the pipe bending module; an angle scale line is provided on the bottom plate (1); the angle scale line is used to determine the rotation angle of the rotating disk (3) during the pipe bending process; A bending die (6), the bending die (6) is fixedly mounted on the base plate (1), and the bending die (6) is arranged corresponding to the pipe bending module, and the bending die (6) is used to determine the spacing of the pipe bending; The pipe bending module comprises a pair of positioning blocks (7) arranged opposite to each other, a gap for placing a pipeline is provided between the two positioning blocks (7), and the gap is provided along the radial direction of the positioning column (2); wherein, one end of one of the positioning blocks (7) close to the limit block (5) is an arc-shaped structure, and the arc-shaped structure is located on one side of the positioning block (7) close to the gap; The top surface of the bending mold (6) is provided with two forming grooves, and the bottoms of the forming grooves are flush with the top surface of the positioning column (2); One of the molding grooves includes a horizontal positioning section (61) and a first V-shaped positioning section (62), the horizontal positioning section (61) and the gap are located on the same axis, and a first pipeline positioning surface (63) is provided at one end of the horizontal positioning section (61) close to the first V-shaped positioning section (62); The other forming groove comprises a straight positioning section (64) and a second V-shaped positioning section (65); an angle is set between the straight positioning section (64) and the gap; a second pipeline positioning surface (66) is set at one end of the straight positioning section (64) close to the second V-shaped positioning section (65); the structure of the second V-shaped positioning section (65) is the same as the mirror image structure of the first V-shaped positioning section (62).

2. The manual pipe bending device for the turbojet engine oil supply pipeline according to claim 1, characterized in that: The top of the positioning column (2) is arranged on an electromagnetic heating coil (8), and the electromagnetic heating coil (8) is used to heat the bending part of the pipeline.

3. The manual pipe bending device for the turbojet engine oil supply pipeline according to claim 2, characterized in that: One end of the limit block (5) is in sliding engagement with the top surface of the positioning column (2); an iron plate is fixedly provided on the top of the positioning column (2); an electromagnet is provided at one end of the limit block (5) in contact with the positioning column (2); when the electromagnet is energized, the limit block (5) is magnetically fixed to the positioning column (2); The handle (4) is provided with a switch 1, and the switch 1 is used to control the on-off of the circuit of the electromagnet.

4. The manual pipe bending device for the turbojet engine oil supply line according to claim 1, characterized in that: Also includes: A power-assisting mechanism (9) is installed on a side of the base plate (1) away from the rotating disk (3), and the power-assisting mechanism (9) is used to assist in driving the rotating disk (3) to rotate.

5. The manual pipe bending device for the turbojet engine oil supply pipeline according to claim 4, characterized in that: The power assist mechanism (9) comprises: A housing (91), wherein the housing (91) is fixedly mounted on the base plate (1); A torsion spring (92), the torsion spring (92) is arranged in the housing (91) and is coaxially arranged with the positioning column (2); an arc-shaped through hole is opened on the base plate (1), one end of the torsion spring (92) passes through the arc-shaped through hole and is fixedly connected to the rotating disk (3), and the other end of the torsion spring (92) is fixedly connected to the housing (91); when the rotating disk (3) is in the initial position, the torsion spring (92) is in a stressed state.

6. The manual pipe bending device for the turbojet engine oil supply line according to claim 4, characterized in that: The power assist mechanism (9) comprises: A housing (91), wherein the housing (91) is fixedly mounted on the base plate (1); a motor (93), wherein the motor (93) is fixedly disposed in the housing (91); A gear transmission assembly, wherein a through hole is provided on the bottom plate (1), the interior of the rotating disk (3) is a cavity, an annular gear ring (94) is fixedly connected to a cavity wall on one side of the cavity, the annular gear ring (94) is coaxially arranged with the positioning column (2), and the motor (93) and the rotating disk (3) are driven and matched through the gear transmission assembly and the annular gear ring (94); Switch 2, the switch 2 is arranged on the handle (4), and the switch 2 is used to control the opening and closing of the motor (93).

7. The manual pipe bending device for the turbojet engine oil supply line according to claim 6, characterized in that: The gear transmission assembly includes: A large gear (95), wherein the large gear (95) is fixedly mounted on the output shaft of the motor (93); a rotating shaft (96), one end of the rotating shaft (96) being rotatably connected to the housing (91), and the other end of the rotating shaft (96) extending into the cavity through the through hole; A small gear (97), wherein the small gear (97) is fixedly sleeved on the rotating shaft (96), and the small gear (97) is meshed with the large gear (95); A meshing gear (98) is fixedly sleeved on the rotating shaft (96), and the meshing gear (98) is meshed with the annular gear ring (94).

8. The manual pipe bending device for the turbojet engine oil supply line according to claim 1, characterized in that: A plurality of stoppers (10) are slidably arranged on the bottom plate (1), wherein two of the stoppers (10) are used to limit the initial position of the rotating disk (3), and the remaining stoppers (10) are arranged along the circumference of the rotating disk (3) to limit the rotation angle of the rotating disk (3).

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