Manual and electric integrated airplane jack with electric walking function

Abstract

The utility model discloses a manual and electric integrated airplane jack with an electric walking function, which relates to the field of airplane jacks, and comprises a jack main body, three inclined support rods are arranged on the outer wall of the jack main body, cross beams are connected to two sides of the inner part of each inclined support rod, and an oil tank is arranged on each cross beam. The top of the oil tank is provided with a hydraulic motor and a valve body. Moving and lifting of the aircraft jack can be controlled through control of the remote controller, and the aircraft jack can be moved to a jacking point more accurately for operation; meanwhile, manual operation is reserved, the jack can be operated manually under the conditions of electrical element accidents or power shortage and the like, the maintenance task is not affected, the accuracy is improved, the labor intensity is reduced, the safety of equipment is guaranteed, and the working efficiency and the reliability are improved.

Description

Technical Field

[0001] This utility model relates to the field of aircraft jacks, specifically a hand-electric integrated aircraft jack with electric walking function. Background Technology

[0002] Aircraft jacks are important pieces of equipment used in aircraft maintenance and repair work to lift aircraft. The main function of aircraft jacks is to lift the aircraft to a certain height so that maintenance, repair and replacement of parts can be carried out.

[0003] Existing aircraft jacks, due to the critical importance of maintenance efficiency and mobility during emergency maintenance tasks, rely on manual pushing and pulling for short-distance movement and towing by tractors for medium- to long-distance movement. The lifting and lowering of the jacks depend on hand-cranked pumps, which greatly reduces the accuracy, mobility, and work efficiency of the jacks. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide an integrated electric and hand-held aircraft jack with electric walking function to solve the technical problem of low working efficiency of existing jacks.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a hand-operated and electric integrated aircraft jack with electric walking function, comprising a jack body, three inclined support rods on the outer wall of the jack body, crossbeams connected to both sides of the inner side of each inclined support rod, an oil tank mounted on the crossbeams, a hydraulic motor mounted on the top of the oil tank, a valve body mounted on the top of the oil tank, and an electromagnetic reversing valve with a load operating handle mounted on the valve body, a hand pump mounted on one side of the oil tank, a threaded cylinder at the bottom end of each inclined support rod, a threaded column connected internally to the threaded cylinder, a stabilizing plate mounted at the bottom end of the threaded column via a bearing, side frames mounted on both sides of the top of the stabilizing plate, a rotating shaft rotatably mounted inside the side frame, a rotating bracket mounted on the outer wall of the rotating shaft, a push plate mounted at the bottom of the rotating bracket, a torsion spring sleeved on the outer wall of the rotating shaft, one end of the torsion spring being fixedly connected to one side frame, and the other end of the torsion spring being connected to the rotating bracket.

[0006] By adopting the above technical solution, when the threaded column is rotated, the threaded column can move, which in turn drives the rotating frame and push plate to move.

[0007] Furthermore, a first check valve and a second check valve are respectively provided between the hand-cranked pump and the hydraulic motor and the solenoid directional valve of the load operating handle, and a one-way throttle valve is connected above the solenoid directional valve of the load operating handle.

[0008] By adopting the above technical solution, the setting of the first check valve and the second check valve prevents hydraulic oil from flowing to the hand pump, and only supplies oil upward from the solenoid directional valve of the load operating handle.

[0009] Furthermore, a hydraulically controlled check valve is connected above the one-way throttle valve, and the hydraulically controlled check valve is connected to the jack body. A return valve is connected to one side of the jack body.

[0010] By adopting the above technical solution, hydraulic oil is pushed up by the one-way throttle valve and flows to the jack, causing the jack to rise.

[0011] Furthermore, guide holes are provided on both sides of the bottom of the threaded cylinder, and guide rods are inserted into the guide holes, with the bottom end of the guide rods fixedly connected to the top of the stabilizing disk.

[0012] By adopting the above technical solution, the stability of the aircraft jack can be improved and the jack can be prevented from moving arbitrarily after the stabilizing plate moves down and fits against the ground.

[0013] Furthermore, two power supply boxes are installed on the top of the crossbeam, and a remote control is suspended on one side of each power supply box.

[0014] By adopting the above technical solution, when the aircraft jack is in normal use, the hydraulic system of the aircraft jack can be controlled by a remote control, enabling the jack to achieve lifting and lowering functions.

[0015] Furthermore, a turntable is installed at the top of the threaded column, and the outer wall of the turntable is provided with anti-slip texture.

[0016] By adopting the above technical solution, it is convenient for workers to rotate the threaded column by turning the turntable, and the anti-slip texture makes it easy to rotate the turntable.

[0017] Furthermore, each of the three threaded cylinders has a connecting plate fixed to its outer wall, and a connecting post is installed on one side of the connecting plate. A second mounting plate is installed at the bottom of each of the two connecting posts, and a driven wheel is provided at the bottom of the second mounting plate.

[0018] By adopting the above technical solution, the passive wheel design facilitates the movement of the aircraft jack.

[0019] Furthermore, a first mounting plate is installed at the bottom of another connecting column, and a drive wheel is installed at the bottom of the first mounting plate. The drive wheel is a steering wheel with its own steering function.

[0020] By adopting the above technical solution, the setting of the drive wheel also facilitates the movement of the aircraft jack, so as to transfer the aircraft jack.

[0021] Furthermore, a control box is connected to a crossbeam near the middle of the two passive wheels, and the driving wheel and the two passive wheels are arranged in a triangular distribution.

[0022] By adopting the above technical solution, the stability of the jack can be improved by setting the driving wheel and the two driven wheels in a triangular distribution.

[0023] Furthermore, both the push plate and the rotating frame are rotatably connected to the side frame via a rotating shaft. The size of the rotating frame is larger than the diameter of the stabilizing disk, and the two rotating frames are arranged in a cross configuration.

[0024] By adopting the above technical solution, the setting of the rotating shaft facilitates the rotation of the rotating frame and the push plate, so as to adjust the position of the rotating frame.

[0025] In summary, the present invention has the following main advantages:

[0026] 1. This utility model can control the movement and lifting of the aircraft jack via remote control, allowing for more accurate movement to the lifting point for operation; at the same time, it retains manual operation, so that in case of sudden electrical component failure or power failure, the jack can be operated manually without affecting the maintenance task, increasing accuracy, reducing manual labor intensity, ensuring equipment safety, and improving work efficiency and reliability.

[0027] 2. This utility model is equipped with a side frame, a rotating shaft, a rotating frame, a push plate, and a torsion spring. Since the bottom height of the push plate is lower than the bottom height of the stable plate, when the stable plate is lowered to contact the ground, the push plate contacts the ground first. As the stable plate continues to move down, the rotating frame will rotate, and the push plate will move, pushing away impurities on the ground to clean the ground directly below the stable plate. This improves the contact effect between the stable plate and the ground and enhances the stability of the jack. It also prevents impurities from affecting the contact efficiency between the stable plate and the ground. After the stable plate is in contact with the ground, it is located inside the rotating frame, thus avoiding obstruction of the contact between the stable plate and the ground. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0029] Figure 2 This is a schematic diagram of the fuel tank structure of this utility model;

[0030] Figure 3 This is a schematic diagram of the oil circuit of this utility model;

[0031] Figure 4 This is a schematic diagram of the front section structure of the threaded cylinder of this utility model;

[0032] Figure 5 This is a schematic diagram of the threaded cylinder structure of this utility model;

[0033] Figure 6 This is a schematic diagram of the rotating frame structure of this utility model;

[0034] Figure 7 This is a schematic diagram of the push plate structure of this utility model from a bottom view.

[0035] In the diagram: 1. Jack body; 2. Inclined support rod; 3. Turntable; 4. Crossbeam; 5. First mounting plate; 6. Power supply box; 7. Remote control; 8. Second mounting plate; 9. Control box; 10. Anti-slip texture; 11. Hydraulic motor; 12. Oil tank; 13. Valve body; 14. Electromagnetic directional valve for load operating handle; 15. Hand pump; 16. First check valve; 17. Second check valve; 18. One-way throttle valve; 19. Return valve; 20. Hydraulic control check valve; 21. Overflow valve; 22. Threaded cylinder; 23. Stabilizing plate; 24. Threaded column; 25. Push plate; 26. Side frame; 27. Rotating shaft; 28. Rotating frame; 29. ​​Drive wheel; 30. Connecting column; 31. Driven wheel; 32. Connecting plate; 33. Torsion spring; 34. Guide hole; 35. Guide rod. Detailed Implementation

[0036] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0037] The embodiments of this utility model will be described below based on its overall structure.

[0038] Example 1:

[0039] A type of electric-powered, hand-held, integrated aircraft jack, such as... Figures 1-7 As shown, the jack includes a main body 1. Three inclined support rods 2 are provided on the outer wall of the main body 1. A crossbeam 4 is connected to the inner sides of the inclined support rods 2, and an oil tank 12 is installed on the crossbeam 4. A hydraulic motor 11 is installed on the top of the oil tank 12, and a valve body 13 is also installed on the top of the oil tank 12. An electromagnetic directional valve 14 for the load operating handle is installed on the valve body 13. A hand pump 15 is installed on one side of the oil tank 12. A threaded cylinder 22 is provided at the bottom end of the inclined support rods 2. A threaded column 24 is threaded inside the threaded cylinder 22. A first check valve 16 and a second check valve 17 are provided between the hand pump 15 and the hydraulic motor 11 and the electromagnetic directional valve 14 for the load operating handle. A one-way throttle valve 18 is connected above the electromagnetic directional valve 14 for the load operating handle. The arrangement of the first check valve 16 and the second check valve 17 prevents hydraulic oil from flowing to the hand pump 15, and allows oil to be supplied upwards only from the electromagnetic directional valve 14 for the load operating handle.

[0040] See Figures 1-4A hydraulic control check valve 20 is connected above the one-way throttle valve 18 and is connected to the jack body 1. A return valve 19 is connected to one side of the jack body 1. Hydraulic oil is pushed up by the one-way throttle valve 18 and flows to the jack, causing the jack to rise. Two power boxes 6 are installed on the top of the crossbeam 4. A remote controller 7 is suspended on one side of the power box 6. When the aircraft jack is in normal use, the hydraulic system of the aircraft jack is controlled by the remote controller 7, so that the jack can realize the lifting and lowering function.

[0041] See Figures 1-5 The outer walls of the three threaded cylinders 22 are all fixed with connecting plates 32, and connecting columns 30 are installed on one side of the connecting plates 32. The bottom ends of the two connecting columns 30 are each equipped with a second mounting plate 8. The bottom of the second mounting plate 8 is provided with a passive wheel 31. The bottom end of the other connecting column 30 is equipped with a first mounting plate 5. The bottom of the first mounting plate 5 is equipped with a driving wheel 29. The driving wheel 29 and the passive wheel 31 are designed to facilitate the movement of the aircraft jack for the purpose of transferring the aircraft jack. The driving wheel 29 is a steering wheel with a built-in steering function. The steering wheel has the advantages of high integration, strong adaptability, flexible operation, and high precision. Both the walking and steering functions can be operated by the remote controller 7, which can realize the function of freeing up the hands. A control box 9 is connected to the crossbeam 4 near the middle of the two passive wheels 31.

[0042] Specifically, a stabilizing disc 23 is mounted on the bottom end of the threaded column 24 via a bearing. Side frames 26 are mounted on both sides of the top of the stabilizing disc 23. A rotating shaft 27 is rotatably mounted inside the side frame 26, and a rotating bracket 28 is mounted on the outer wall of the rotating shaft 27. A push plate 25 is mounted on the bottom of the rotating bracket 28. A torsion spring 33 is sleeved on the outer wall of the rotating shaft 27, with one end of the torsion spring 33 fixedly connected to one of the side frames 26 and the other end connected to the rotating bracket 28. When the threaded column 24 is rotated, it moves, which in turn moves the stabilizing disc 23, and consequently the rotating bracket 28 and the push plate 25. When the stabilizing disc 23 moves downwards... After being in contact with the ground, it can improve the stability of the aircraft jack and prevent the aircraft jack from moving at will. The length of the rotating frame 28 is greater than the diameter of the stabilizing plate 23. The top of the threaded column 24 is equipped with a turntable 3. The outer wall of the turntable 3 is provided with anti-slip texture 10, which makes it convenient for the staff to rotate the threaded column 24 through the turntable 3. The anti-slip texture makes it easy to rotate the turntable 3. The push plate 25 and the rotating frame 28 are rotatably connected to the side frame 26 through the rotating shaft 27. The size of the rotating frame 28 is greater than the diameter of the stabilizing plate 23. The two rotating frames 28 are arranged crosswise. The rotating shaft 27 makes it easy for the rotating frame 28 and the push plate 25 to rotate, so as to adjust the position of the rotating frame 28.

[0043] Example 2:

[0044] Based on the above embodiment one, the following structure will be set to improve the stability of the jack.

[0045] See Figure 1 The driving wheel 29 and the two driven wheels 31 are arranged in a triangle. Triangles have stability, and the triangular arrangement of the driving wheel 29 and the driven wheels 31 can improve the stability of the jack.

[0046] The working principle of this utility model is as follows: First, the active wheel 29 and the passive wheel 31 are designed to facilitate the movement of the jack. After the jack is moved to the appropriate position, the operator needs to rotate the threaded column 24 through the turntable 3 to move the threaded column 24 down and drive the stabilizing plate 23, the rotating frame 28 and the push plate 25 down. The push plate 25 first contacts the ground. As the stabilizing plate 23 continues to move down, the rotating frame 28 will rotate. At the same time, the push plate 25 will move and push the impurities on the ground to move, so as to clean the ground directly under the stabilizing plate 23 and improve the adhesion between the stabilizing plate 23 and the ground. When the stabilizing plate 23 is in contact with the ground, the stabilizing plate 23 is located inside the rotating frame 28.

[0047] When in use, the hydraulic motor 11 works to draw oil from the oil tank 12 and lift the first check valve 16. Because the first check valve 16 is located above the hand pump 15 on the left side of the hydraulic motor 11, the hydraulic oil cannot flow to the hand pump 15. It can only be supplied upward from the solenoid directional valve 14 of the load operating handle. The oil is then lifted by the hydraulic control check valve 20 through the one-way throttle valve 18 and flows to the jack, causing the jack to rise.

[0048] As the jack descends, the overflow valve 21 does not reach the set pressure value, the return valve 19 is released, the solenoid directional valve 14 of the load operating handle is set to the descending state, the hydraulic motor 11 performs work, draws oil from the oil tank 12 to lift the second check valve 17, and due to the setting of the first check valve 16, the hydraulic oil cannot flow to the hand pump 15, the hydraulic oil can only be supplied upward from the solenoid directional valve 14 of the load operating handle, lifts the hydraulic control check valve 20 through the one-way throttle valve 18, and flows to the jack, causing the jack to descend;

[0049] In case of any abnormal situation, the power source hydraulic motor 11 can be switched to the hand pump 15. Other operations remain the same and will not affect the operation of the jack.

[0050] When the aircraft jack is in normal use, the aircraft jack's driving system and hydraulic system are controlled by remote controller 7, enabling the aircraft jack to perform forward, backward, and turning driving functions as well as lifting and lowering functions.

[0051] When the aircraft jack is used under abnormal conditions, such as electrical component failure or power shortage, the lifting and lowering can be switched by operating the manual-electric integrated solenoid reversing valve handle, and the hand pump 15 can be operated manually to lift and lower the jack.

[0052] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A hand flashlight integrated aircraft jack with electric walking function, comprising a jack main body (1), characterized in that: The outer wall of the jack body (1) is provided with three inclined support rods (2), the inner sides of the inclined support rods (2) are connected with cross beams (4), an oil tank (12) is installed on the cross beam (4), a hydraulic motor (11) is installed on the top of the oil tank (12), a valve body (13) is also installed on the top of the oil tank (12), an electromagnetic reversing valve (14) of a load operating handle is installed on the valve body (13), a hand pump (15) is installed on one side of the oil tank (12), the bottom end of the inclined support rod (2) is provided with a threaded cylinder (22), a threaded column (24) is threadedly connected in the threaded cylinder (22), a stabilizing disc (23) is installed on the bottom end of the threaded column (24) through a bearing, side frames (26) are installed on the top of the stabilizing disc (23), a rotating shaft (27) is rotatably arranged in the side frame (26), a rotating frame (28) is installed on the outer wall of the rotating shaft (27), a push plate (25) is installed on the bottom of the rotating frame (28), a torsional spring (33) is sleeved on the outer wall of the rotating shaft (27), one end of the torsional spring (33) is fixedly connected with one side frame (26), and the other end of the torsional spring (33) is connected with the rotating frame (28).

2. The hand flashlight integrated aircraft jack with electric walking function according to claim 1, characterized in that: First and second one-way valves (16) and (17) are arranged between the hand pump (15), the hydraulic motor (11) and the electromagnetic reversing valve (14) of the load operating handle, and a one-way throttling valve (18) is connected above the electromagnetic reversing valve (14) of the load operating handle.

3. The hand flashlight integrated aircraft jack with electric walking function according to claim 2, characterized in that: A hydraulic control one-way valve (20) is connected above the one-way throttling valve (18), the hydraulic control one-way valve (20) is connected with the jack body (1), and a return valve (19) is connected on one side of the jack body (1).

4. The hand flashlight integrated aircraft jack with electric walking function according to claim 1, characterized in that: Guide holes (34) are formed on the bottom of the threaded cylinder (22), guide rods (35) are inserted into the guide holes (34), and the bottom end of the guide rod (35) is fixedly connected with the top of the stabilizing disc (23).

5. The hand flashlight integrated aircraft jack with electric walking function according to claim 1, characterized in that: Two power boxes (6) are installed on the top of the cross beam (4), and a remote controller (7) is hung on one side of the power box (6).

6. The hand flashlight integrated aircraft jack with electric walking function according to claim 1, characterized in that: A rotating disc (3) is installed on the top end of the threaded column (24), and anti-skid lines (10) are arranged on the outer wall of the rotating disc (3).

7. The hand flashlight integrated aircraft jack with electric walking function according to claim 1, characterized in that: A connecting plate (32) is fixedly connected on the outer wall of each threaded cylinder (22), a connecting column (30) is installed on one side of the connecting plate (32), a second mounting plate (8) is installed on the bottom end of each connecting column (30), and a driven wheel (31) is arranged on the bottom of the second mounting plate (8).

8. The hand flashlight integrated aircraft jack with electric walking function according to claim 7, characterized in that: A first mounting plate (5) is installed on the bottom end of the other connecting column (30), a driving wheel (29) is installed on the bottom of the first mounting plate (5), and the driving wheel (29) is a rudder wheel with a self-turning function.

9. The hand flashlight integrated aircraft jack with electric walking function according to claim 8, characterized in that: A control box (9) is connected on the cross beam (4) near the middle of the two driven wheels (31), and the driving wheel (29) and the two driven wheels (31) are arranged in a triangular distribution.

10. The hand flashlight integrated aircraft jack with electric walking function according to claim 1, characterized in that: The push plate (25) and the rotating frame (28) are rotatably connected with the side frame (26) through the rotating shaft (27), the size of the rotating frame (28) is greater than the diameter of the stabilizing disc (23), and the two rotating frames (28) are cross arranged.

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