A lifting tool for aircraft maintenance

Abstract

This utility model provides a lifting tool for aircraft maintenance, relating to the technical field of lifting tools. It includes a jack body with a downward pressure rod mounted on its surface, a base fixedly connected to the surface of the jack body, and a hydraulic rod on the surface of the jack body; a movable support device disposed on the surface of the base, including a support base disposed on the surface of the base, with casters fixedly mounted on the inner wall of the support base; and a support connecting device disposed on the surface of the hydraulic rod, including a mating clamp disposed at the end of the hydraulic rod. This utility model solves the problem that after lifting the equipment, the jack and equipment cannot be moved, and when moving the equipment and jack, it is necessary to completely depressurize and detach the jack from the support before moving the equipment, a process that is extremely time-consuming and affects maintenance efficiency.

Description

Technical Field

[0001] This utility model relates to the field of lifting tools, specifically to a lifting tool for aircraft maintenance. Background Technology

[0002] Aircraft maintenance mainly involves lifting the aircraft off the ground to perform tasks such as bottom structure inspection, landing gear repair, and installation and adjustment of airborne equipment. Lifting tools are the core equipment in aircraft ground maintenance operations. Different tools are suitable for different aircraft models, maintenance scenarios and needs, including hydraulic jacks, lifting airbags, adaptive adjustment devices, modular lifting systems and other equipment.

[0003] When inspecting equipment on an aircraft, jacks are used to lift the equipment so that staff can inspect and repair it. Because the jacks are fixed in structure, once the equipment is lifted, the jacks and the equipment cannot be moved. When it is necessary to move the equipment and the jacks, the jacks must be completely depressurized and detached from the support before they can be moved. This process is extremely time-consuming, thus affecting maintenance efficiency. Utility Model Content

[0004] This invention provides a lifting tool for aircraft maintenance that solves the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0006] An embodiment of this utility model provides a lifting tool for aircraft maintenance, comprising:

[0007] The jack body has a downward pressure rod installed on its surface, a base fixedly connected to its surface, and a hydraulic rod provided on its surface.

[0008] A movable support device is disposed on the surface of a base. The movable support device includes a support base disposed on the surface of the base, and casters are fixedly installed on the inner wall of the support base.

[0009] A support connection device is disposed on the surface of a hydraulic rod, and the support connection device includes a mating clamp disposed at the end of the hydraulic rod.

[0010] Furthermore, the movable support device also includes a support screw, which is threadedly connected to the support base. One end of the support screw is rotatably connected to a support plate, and the other end of the support screw is detachably equipped with a control handle.

[0011] Furthermore, the supporting connection device also includes a fixing pin, which is slidably connected to the mating clamp. One end of the fixing pin is fixedly connected to a pull plate, and a fixing hole is opened on the surface of the hydraulic rod. The size of the fixing hole is adapted to the size of the fixing pin.

[0012] Furthermore, the surface of the support base is provided with a base groove, the size of which is adapted to the size of the base. The inner wall of the support base is slidably and rotatably connected to a fixing rod, one end of which is fixedly connected to a screw block. The fixing rod passes through the base, and one end of the fixing rod is a threaded rod.

[0013] Furthermore, one end of the control handle is provided with a slot, and one end of the support screw is fixedly connected with a plug, the size of which is adapted to the size of the slot.

[0014] Furthermore, a limiting plate is rotatably connected to the surface of the support base, and the surface of the limiting plate is provided with an insertion hole, the size of which is larger than the size of the insertion block.

[0015] Furthermore, the surface of the mating fixture is provided with a circular groove, and a spring is fixedly connected to the inner wall of the mating fixture. The other end of the spring is fixedly connected to the pull plate, and the spring is located on the inner wall of the circular groove.

[0016] Furthermore, a shock-absorbing block is fixedly connected to the surface of the caster wheel, and the shock-absorbing block is fixedly connected to the support base. The shock-absorbing block is made of high-damping nitrile rubber.

[0017] The above-described solution of this utility model has at least the following beneficial effects:

[0018] This invention, by setting up a mobile support device and a support connection device, allows the jack to move by relying on the universal wheels at the bottom of the support base after lifting the aircraft and equipment. The matching clamp at the lifting end of the jack engages with the support point, making the support stable. This allows for stable and synchronous movement of the supported equipment and the jack, enabling movement without depressurizing or disassembling the jack, reducing the operation time of the mobile equipment, and thus improving maintenance efficiency to a certain extent. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a utility model Figure 1 A partial structural diagram;

[0021] Figure 3 This is a schematic diagram of the structure of the mobile support device of this utility model;

[0022] Figure 4This is a schematic diagram of the structure of the support screw of this utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the fixture of this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Jack body; 2. Downward pressure rod; 3. Base; 4. Hydraulic rod; 5. Moving support device; 51. Support base; 511. Base groove; 52. Casters; 521. Shock absorber; 53. Support screw; 531. Support plate; 532. Insert block; 533. Control handle; 534. Slot; 54. Limiting plate; 541. Insertion hole; 55. Fixing rod; 551. Tightening block; 6. Support connecting device; 61. Matching clamp; 62. Fixing pin; 63. Pull plate; 64. Spring; 65. Circular groove; 66. Fixing hole. Detailed Implementation

[0026] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0027] like Figures 1 to 5 As shown, an embodiment of this utility model provides a lifting tool for aircraft maintenance, comprising: a jack body 1, a pressing rod 2 mounted on the surface of the jack body 1, a base 3 fixedly connected to the surface of the jack body 1, and a hydraulic rod 4 disposed on the surface of the jack body 1; a movable support device 5 disposed on the surface of the base 3, the movable support device 5 including a support base 51 disposed on the surface of the base 3, and casters 52 fixedly mounted on the inner wall of the support base 51; and a support connecting device 6 disposed on the surface of the hydraulic rod 4, the support connecting device 6 including a mating clamp 61 disposed at the end of the hydraulic rod 4.

[0028] like Figures 1 to 3 As shown, the jack body 1 has a pressure rod 2 installed on its surface, a base 3 fixedly connected to its surface, and a hydraulic rod 4 installed on its surface. When it is necessary to repair the aircraft or airborne equipment, the jack body 1 is moved to a support point, and then the pressure rod 2 is installed to continuously pressurize the jack body 1, raising the hydraulic rod 4 and thus lifting the aircraft or airborne equipment for easy maintenance by the staff.

[0029] like Figure 2 and Figure 5As shown, the movable support device 5 is disposed on the surface of the base 3. The movable support device 5 includes a support base 51 disposed on the surface of the base 3. The support base 51 has a larger area than the original base 3, increasing the support area and providing better support stability. Universal wheels 52 are fixedly installed on the inner wall of the support base 51. Universal wheels 52 are also provided on the bottom of the support base 3 to facilitate moving the jack body 1 to a fixed position. The movable support device 5 also includes a support screw 53, which is threadedly connected to the support base 51. One end of the support screw 53... A support plate 531 is rotatably connected, and a control handle 533 is detachably installed on the other end of the support screw 53. When one end of the control handle 533 is connected to the insert block 532, the insert block 532 is engaged with the slot 534. Then, the control handle 533 drives the support screw 53 to rotate, which drives the support plate 531 to move downward. The distance between the support plate 531 and the ground is short. It only takes a few turns of the support screw 53 to reach the ground. The support plate 531 reaches the ground, thereby sharing the support of the caster wheel 52 and avoiding damage to the internal bearings of the caster wheel 52 due to long-term overload support.

[0030] like Figure 3 As shown, a base groove 511 is formed on the surface of the support base 51. The size of the base groove 511 is adapted to the size of the base 3. A fixing rod 55 is slidably and rotatably connected to the inner wall of the support base 51. A screw block 551 is fixedly connected to one end of the fixing rod 55. When installing the jack body 1, the jack body 1 is installed on the support base 51. The base 3 of the jack body 1 is located in the base groove 511. The fixing rod 55 passes through the base 3. One end of the fixing rod 55 is a threaded rod. One end of the fixing rod 55 is threadedly connected to the inner wall of one side of the support base 51, so that the jack body 1 is fixedly installed with the support base 51.

[0031] like Figure 1 and Figure 5 As shown, a support connection device 6 is disposed on the surface of the hydraulic rod 4. The support connection device 6 includes a mating clamp 61 disposed at the end of the hydraulic rod 4. The mating clamp 61 is fixed to the end of the hydraulic rod 4 of the jack body 1. A fixing pin 62 is inserted into a fixing hole 66 at the end of the hydraulic rod 4. The mating clamp 61 is stably fixed to the end of the hydraulic rod 4. The groove on the surface of the mating clamp 61 is adapted to the protrusion of the parts of the equipment support point. The support connection device 6 also includes a fixing pin 62, which is slidably connected to the mating clamp 61. A pull plate 63 is fixedly connected to one end of the fixing pin 62. A fixing hole 66 is opened on the surface of the hydraulic rod 4. The size of the fixing hole 66 is adapted to the size of the fixing pin 62. Different support points have mating clamps 61 with different grooves. When supporting different support points, mating clamps 61 with different grooves can be replaced.

[0032] like Figure 4 As shown, a slot 534 is provided at one end of the control handle 533, and a plug 532 is fixedly connected to one end of the support screw 53. The size of the plug 532 is adapted to the size of the slot 534. One end of the control handle 533 is connected to the plug 532, and the plug 532 is engaged with the slot 534. The control handle 533 drives the support screw 53 to rotate, thereby moving the support plate 531.

[0033] like Figure 3 As shown, a limiting plate 54 is rotatably connected to the surface of the support base 51. The surface of the limiting plate 54 is provided with an insertion hole 541. The size of the insertion hole 541 is larger than the size of the insertion block 532. After the support screw 53 is fixed, the limiting plate 54 is rotated to cover the surface of the insertion block 532. The insertion block 532 fits into the insertion hole 541, preventing the support screw 53 from being rotated due to downward pressure and vibration, thus preventing the support plate 531 from moving and losing its support function.

[0034] like Figure 5 As shown, a circular groove 65 is formed on the surface of the clamping fixture 61. A spring 64 is fixedly connected to the inner wall of the clamping fixture 61. The other end of the spring 64 is fixedly connected to the pull plate 63. The spring 64 is located on the inner wall of the circular groove 65. When the pull plate 63 is pulled, the spring 64 is in a stretched state, and the fixing pin 62 disengages from the fixing hole 66, so the clamping fixture 61 can be removed. During installation, the fixing pin 62 is inserted into the fixing hole 66. The spring 64 retracts normally and always keeps the fixing pin 62 inserted into the fixing hole 66 to fix the clamping fixture 61. In the normal fixed state, the spring 64 retracts into the circular groove 65, thus hiding the spring 64 and preventing accidental damage to the spring 64.

[0035] like Figure 3 As shown, a shock absorber 521 is fixedly connected to the surface of the caster wheel 52. The shock absorber 521 is fixedly connected to the support base 51. The shock absorber 521 is made of high-damping nitrile rubber. High-damping nitrile rubber is a rubber product with high hardness made by carbon black and vulcanization process. It has good high-pressure bearing shock absorption effect and reduces the transmission of vibration.

[0036] In this embodiment of the utility model, the jack body 1 is a heavy-duty vertical hydraulic jack manufactured by Jiangsu Huadong Hardware City Management Co., Ltd. Since the structure and operating principle of this jack body 1 are existing technologies, the caster wheel 52 is an ultra-heavy-duty iron core PU arc wheel manufactured by Guangzhou Huashun Caster Co., Ltd. Since the structure and operating principle of this caster wheel 52 are existing technologies, its structure and operating principle will not be described in detail here.

[0037] Working principle: When it is necessary to inspect or repair an aircraft or airborne equipment, the jack body 1 is moved to the support point, and then the lowering rod 2 is installed. The pressure is continuously applied to the jack body 1, raising the hydraulic rod 4, thereby lifting the aircraft or airborne equipment to facilitate maintenance by the staff.

[0038] When installing the jack body 1, the jack body 1 is mounted on the support base 51. The base 3 of the jack body 1 is located in the base groove 511. At this time, the fixing rod 55 passes through the base 3, and one end of the fixing rod 55 is threaded to the inner wall of one side of the support base 51, so that the jack body 1 is fixedly installed with the support base 51. The bottom of the support base 3 is equipped with casters 52 to facilitate moving the jack body 1 to a fixed position. At this time, the clamping fixture 61 is fixed to the end of the hydraulic rod 4 of the jack body 1, and the fixing pin 62 is inserted into the fixing hole 66 at the end of the hydraulic rod 4. The clamping fixture 61 is stably fixed to the end of the hydraulic rod 4. The groove on the surface of the clamping fixture 61 is adapted to the protrusion of the parts of the equipment support point. Different support points have different grooved clamping fixtures 61. When supporting different support points, different grooved clamping fixtures 61 can be replaced to control the... One end of the handle 533 is connected to the insert block 532, at which point the insert block 532 engages with the slot 534. Then, by controlling the handle 533, the support screw 53 is rotated, causing the support plate 531 to move downward. The distance between the support plate 531 and the ground is short, and it only takes a few rotations of the support screw 53 to reach the ground. With the support plate 531 against the ground, the support is shared with the caster wheel 52, preventing the caster wheel 52 from being overloaded for a long time and causing damage to the internal bearings. After the support screw 53 is fixed, the limiting plate 54 is rotated to cover the surface of the insert block 532. At this time, the insert block 532 engages with the insertion hole 541, preventing the support screw 53 from rotating due to downward pressure and vibration, thus preventing the support plate 531 from losing its support function. The support base 51 has a larger area than the original base 3, increasing the support area and providing better support stability.

[0039] After the main body 1 of the jack is fixed, the staff will carry out maintenance on the equipment. During the maintenance process, when it is necessary to move the equipment as a whole, the control handle 533 is installed to reverse the support screw 53 and retract the support plate 531 to disengage from the support. Then, it can be moved by the casters 52 at the bottom of the support base 51. A machine-mounted device is supported and lifted by multiple lifting devices. Multiple lifting points work together to lift, so as to make stable movement. The distance between the support base 51 and the ground is relatively close, so it can be moved on flat ground inside the factory. It is difficult to move on uneven ground.

[0040] Before use, the threads of the support screw 53 and the fixed rod 55 should be cleaned of dust or foreign objects, or dust covers should be installed on the screw for protection. The support screw 53 and the fixed rod 55 can be completely removed by rotation, making it easier to replace them after damage. It is also necessary to promptly inspect and repair the vulnerable parts on the device, such as whether the screw is stuck, whether the spring 64 still has elasticity, or whether the parts have deformed, so as to ensure the stability of the device in each use. This device and equipment are suitable for maintenance of small aircraft.

[0041] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A lifting tool for aircraft maintenance, characterized in that, include: The jack body (1) has a downward pressure rod (2) installed on its surface, a base (3) fixedly connected to its surface, and a hydraulic rod (4) provided on its surface. A mobile support device (5) is provided on the surface of a base (3). The mobile support device (5) includes a support base (51) provided on the surface of the base (3). A caster wheel (52) is fixedly installed on the inner wall of the support base (51). A support connection device (6) is disposed on the surface of the hydraulic rod (4), and the support connection device (6) includes a mating clamp (61) disposed at the end of the hydraulic rod (4).

2. The lifting tool for aircraft maintenance according to claim 1, characterized in that, The movable support device (5) further includes a support screw (53), which is threadedly connected to the support base (51). One end of the support screw (53) is rotatably connected to a support plate (531), and the other end of the support screw (53) is detachably equipped with a control handle (533).

3. The lifting tool for aircraft maintenance according to claim 1, characterized in that, The supporting connection device (6) further includes a fixing pin (62), which is slidably connected to the mating clamp (61). One end of the fixing pin (62) is fixedly connected to a pull plate (63). The surface of the hydraulic rod (4) is provided with a fixing hole (66), the size of which is adapted to the size of the fixing pin (62).

4. The lifting tool for aircraft maintenance according to claim 2, characterized in that, The surface of the support base (51) is provided with a base groove (511), the size of the base groove (511) is adapted to the size of the base (3), the inner wall of the support base (51) is slidably and rotatably connected with a fixing rod (55), one end of the fixing rod (55) is fixedly connected with a screw block (551), the fixing rod (55) passes through the base (3), and one end of the fixing rod (55) is a threaded rod.

5. A lifting tool for aircraft maintenance according to claim 2, characterized in that, One end of the control handle (533) is provided with a slot (534), and one end of the support screw (53) is fixedly connected with a plug (532). The size of the plug (532) is adapted to the size of the slot (534).

6. The lifting tool for aircraft maintenance according to claim 2, characterized in that, The surface of the support base (51) is rotatably connected to a limiting plate (54), and the surface of the limiting plate (54) is provided with an insertion hole (541), the size of which is larger than the size of the insertion block (532).

7. The lifting tool for aircraft maintenance according to claim 3, characterized in that, The surface of the mating fixture (61) is provided with a circular groove (65), and a spring (64) is fixedly connected to the inner wall of the mating fixture (61). The other end of the spring (64) is fixedly connected to the pull plate (63), and the spring (64) is located on the inner wall of the circular groove (65).

8. The lifting tool for aircraft maintenance according to claim 1, characterized in that, The surface of the caster wheel (52) is fixedly connected to a shock absorber block (521), which is fixedly connected to the support base (51), and the shock absorber block (521) is made of high-damping nitrile rubber.

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