An aircraft equipment servicing device

Abstract

The application discloses an aviation equipment maintenance device, which comprises a connecting seat, a push handle is arranged at the top end of the connecting seat, two fixed moving seats are symmetrically arranged on the front surface of the connecting seat, a machine wheel is held above the two fixed moving seats, the machine wheel comprises a connecting shaft, wheel bodies are symmetrically arranged at the two ends of the connecting shaft, a holding installation assembly is arranged between the two fixed moving seats, the holding installation assembly is used for holding the connecting shaft, a holding maintenance assembly is arranged at the top end of the fixed moving seat, and the holding maintenance assembly is used for holding the wheel bodies; in the working process, the connecting shaft is limited through the push plate, two groups of limiting rotating pieces limit the limiting belts into a concave shape, the wheel bodies are limited, the holding stability of the machine wheel is improved, the machine wheel is conveniently maintained, the main limiting roller is driven to rotate through the second motor, the limiting belt is driven to move, the wheel bodies are driven to rotate, and the staff can conveniently check and maintain the surface of the wheel bodies.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of aviation equipment maintenance, and specifically relates to an aviation equipment maintenance device. BACKGROUND

[0002] The wheel is one of important components of an airplane. Since a large pressure is generated on the wheel when the airplane takes off or lands, the wheel is seriously worn and needs to be frequently maintained and replaced. According to the patent document with the authorized announcement number CN113636096B and the invention name "Civil aviation airplane wheel automatic lifting device and using method thereof", the specification records that the main lifting platform comprises a movable base, four universal wheels with locking function are connected to the bottom of the movable base through hinge supports, the movable base serves as the framework support of the whole main lifting platform, the universal wheels are used to flexibly move the whole main lifting platform, or the universal wheels are replaced by track wheels according to the load condition; a vertical column and a U-shaped cantilever support are arranged above the movable base; the vertical column is a slotted structure and is arranged at one side of the upper end of the movable base; the cantilever support comprises a vertical sliding block which is in sliding cooperation with the vertical column, and further comprises a U-shaped support plate which is arranged on the movable base; the top of the support plate directly contacts with the tire, a V-shaped or U-shaped groove is arranged at the position where the support plate contacts with the wheel, so as to prevent the wheel from rolling during the lifting or traction process, and the front and back of the support plate are provided with wheel stop plates, so as to keep the wheel from rolling during the lifting or traction process, and rubber buffer pads are arranged on the wheel stop plates, so as to avoid the rigid contact between the wheel stop plates and the tire and cause the wear of the wheel. However, the following defects still exist.

[0003] When the wheel is maintained and replaced, the wheel frame is arranged on the support plate, so that the wheel is not easy to adjust and rotate, and it is inconvenient to inspect and maintain the circumferential surface of the wheel. SUMMARY

[0004] In view of the above problems, the aviation equipment maintenance device is provided to overcome the defects of the prior art and effectively solve the problem that the wheel frame is arranged on the support plate, it is not easy to adjust and rotate, and it is inconvenient to inspect and maintain the circumferential surface of the wheel.

[0005] To achieve the above purpose, the aviation equipment maintenance device comprises a connecting seat, a push handle is arranged at the top end of the connecting seat, two fixed moving seats are symmetrically arranged on the front of the connecting seat, and a wheel is held above the two fixed moving seats.

[0006] The wheel comprises a connecting shaft, and wheel bodies are symmetrically arranged at the two ends of the connecting shaft.

[0007] A lifting and mounting assembly is arranged between the two fixed moving seats, the lifting and mounting assembly is used to lift the connecting shaft, a lifting and maintenance assembly is arranged at the top end of the fixed moving seat, and the lifting and maintenance assembly is used to lift the wheel body.

[0008] The lifting maintenance assembly comprises an upper support plate arranged above the fixed moving base, the top end of the upper support plate is symmetrically provided with two mounting plates, the inside of the mounting plate is provided with a limiting belt, two limiting rotating parts are symmetrically arranged between the two mounting plates, the limiting rotating parts are used for driving the limiting belt to move, thereby driving the wheel body to rotate, a transverse moving part is arranged between the fixed moving base and the upper support plate, and a clamping stabilizing assembly is arranged on the mounting plate.

[0009] Preferably, a connecting support plate is fixedly arranged between the two mounting plates, the connecting support plate is located on the inside of the limiting belt, the top wall of the connecting support plate is in contact with the inside top wall of the limiting belt, and the connecting support plate can provide support force for the wheel body.

[0010] Preferably, the limiting rotating part comprises a driving limiting roller rotatably arranged on the inside of the two mounting plates, an external limiting roller and an internal limiting roller, the driving limiting roller and the external limiting roller are in close contact with the inner wall of the limiting belt, the internal limiting roller is in close contact with the outer wall of the limiting belt, one end of the rotating shaft of the driving limiting roller is fixedly connected with the output shaft of the second motor, the second motor is fixedly arranged on the mounting plate, and the two limiting rotating parts limit the limiting belt into a concave shape, so that the limiting belt can limit the wheel body.

[0011] Preferably, the transverse moving part comprises a lower support plate arranged between the fixed moving base and the upper support plate, the top end of the fixed moving base is symmetrically provided with a second jack, the lower support plate is fixedly connected with the output end of the second jack, the top end of the lower support plate is symmetrically provided with a sliding groove, the bottom end of the upper support plate is symmetrically provided with a sliding block, the sliding block is in sliding connection with the sliding groove, and the side, away from the lifting installation assembly, of the sliding block is fixedly connected with the output end of the air cylinder.

[0012] Preferably, the lifting installation assembly comprises a movable moving base arranged between the two fixed moving bases, the top end of the movable moving base is fixedly provided with a first jack, the output end of the first jack is provided with a push plate, the inner arc surface of the push plate is in close contact with the outer wall of the connecting shaft, and the bottom of the movable moving base and the bottom of the fixed moving base are both provided with a plurality of self-locking rollers.

[0013] Preferably, a rod groove is arranged on the fixed moving base, a cross rod is movably arranged in the rod groove, a connecting rod is arranged between the side wall of the movable moving base and the end of the cross rod close to the movable moving base, the two ends of the connecting rod are hingedly connected with the cross rod and the movable moving base respectively, the two ends of the connecting base are symmetrically provided with sliding frames, one end of the cross rod is fixedly provided with a sliding block, and the two sliding blocks are slidingly arranged in the interiors of the two sliding frames.

[0014] Preferably, the inside of the connecting seat is rotatably provided with a double-headed screw rod, two ends of the double-headed screw rod are rotatably provided in the inside of the sliding frame, two screw grooves on the double-headed screw rod are respectively located in the inside of the two sliding frames, two sliding blocks are respectively threadedly connected with the two screw grooves with opposite directions on the double-headed screw rod, one end of the double-headed screw rod is fixedly connected with the output shaft of the first motor, and the first motor is fixedly installed on the end of the sliding frame.

[0015] Preferably, the holding and stabilizing assembly comprises a mounting frame fixedly installed on the surface of the mounting plate away from the movable moving seat, a rotating shaft rotatably installed at the end of the mounting frame, a rotating frame installed on the rotating shaft, an installation plate fixedly installed at one end of the rotating frame, and a gear coaxially installed at one end of the rotating shaft, and the rotating frame is horizontally arranged, and when the rotating frame is rotated upwards, the holding block can be pressed on the top wall of the wheel body.

[0016] Preferably, a connecting rod is fixedly installed on the surface of the mounting plate close to the movable moving seat, a toothed plate is fixedly installed at one end of the connecting rod, the connecting rod passes through the gap between the two fixed moving seats and the two lower supporting plates, and the toothed plate is engaged with the bottom of the gear on the other side.

[0017] Compared with the prior art, the present application has the following beneficial effects:

[0018] 1) In work, the push plate is arranged to limit the connecting shaft, two sets of limiting rotating pieces limit the limiting belt into a concave shape, and the wheel body is limited, so that the lifting stability of the wheel is improved, the wheel is convenient to maintain, and when the limiting belt moves under the driving of the driving limiting roller of the second motor, the wheel body rotates, so that the staff can conveniently check and maintain the surface of the wheel body;

[0019] 2) In work, the wheel body is limited to the inside of the limiting belt, and the sliding block at the bottom end of the upper supporting plate is slidingly installed in the sliding groove. When it is necessary to maintain and replace the wheel body on one side, the upper supporting plate is moved towards the movable moving seat by the cylinder, so that the limiting belt moves below the connecting shaft, the obstacle outside the wheel body is removed, and the wheel body is convenient to maintain and replace;

[0020] 3) In work, the toothed plate corresponding to the limiting belt on one side is engaged with the gear on the other side. When the limiting belt on one side moves towards the movable moving seat, the rotating shaft at the end of the rotating frame is driven by the toothed plate to rotate upwards around the mounting frame, so that the holding block is pressed on the top end of the wheel body which is not maintained and replaced, the wheel is held and stabilized, and the maintenance stability is improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] The accompanying drawings are included to provide a further understanding of the present application, and constitute a part of the specification, illustrate the present application together with the embodiments thereof, and explain the present application, but do not constitute a limitation of the present application.

[0022] In the drawings:

[0023] Figure 1 It is an aviation equipment maintenance device structure schematic view of the present application;

[0024] Figure 2 It is a connecting seat structure schematic view of the present application;

[0025] Figure 3 It is a lifting installation assembly structure schematic view of the present application;

[0026] Figure 4 It is a lifting maintenance assembly structure schematic view of the present application;

[0027] Figure 5 It is a holding stable assembly structure schematic view of the present application;

[0028] Figure 6 It is a limiting rotating piece structure schematic view of the present application.

[0029] In the drawings: 1, connecting seat; 2, push handle; 3, fixed moving seat; 4, lifting installation assembly; 401, movable moving seat; 402, first jack; 403, push plate; 404, sliding frame; 405, rod groove; 406, crossbar; 407, connecting rod; 408, sliding block; 409, double-headed screw rod; 410, first motor; 5, lifting maintenance assembly; 501, lower support plate; 502, second jack; 503, sliding groove; 504, upper support plate; 505, sliding block; 506, air cylinder; 507, mounting plate; 508, connecting support plate; 509, limiting rotating piece; 5091, driving limiting roller; 5092, external limiting roller; 5093, internal limiting roller; 5094, second motor; 510, limiting belt; 6, holding stable assembly; 601, connecting rod; 602, toothed plate; 603, mounting frame; 604, rotating frame; 605, rotating shaft; 606, gear; 607, holding block; 7, wheel; 701, connecting shaft; 702, wheel body. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0031] Embodiment one, by Figures 1-6The present application relates to an aviation equipment maintenance device, which comprises a connecting seat 1, a push handle 2 is installed at the top of the connecting seat 1, two fixed moving seats 3 are symmetrically installed on the front of the connecting seat 1, and a machine wheel 7 is held above the two fixed moving seats 3;

[0032] The machine wheel 7 comprises a connecting shaft 701, and wheel bodies 702 are symmetrically installed at the two ends of the connecting shaft 701;

[0033] A lifting installation assembly 4 is arranged between the two fixed moving seats 3, the lifting installation assembly 4 is used for lifting the connecting shaft 701, a lifting maintenance assembly 5 is installed at the top of the fixed moving seat 3, and the lifting maintenance assembly 5 is used for lifting the wheel body 702;

[0034] The lifting maintenance assembly 5 comprises an upper supporting plate 504 arranged above the fixed moving base 3, the top end of the upper supporting plate 504 is symmetrically provided with two mounting plates 507, the inside of the mounting plate 507 is provided with a limiting belt 510, two limiting rotating pieces 509 are symmetrically arranged between the two mounting plates 507, the limiting rotating piece 509 is used for driving the limiting belt 510 to move, thereby driving the wheel body 702 to rotate, the fixed moving base 3 and the upper supporting plate 504 are provided with a transverse moving piece, the mounting plate 507 is provided with a clamping stabilizing assembly 6, the two mounting plates 507 are fixedly provided with a connecting supporting plate 508, the connecting supporting plate 508 is located inside the limiting belt 510, and the top wall of the connecting supporting plate 508 is in contact with the inside top wall of the limiting belt 510, the connecting supporting plate 508 can provide supporting force for the wheel body 702, the limiting rotating piece 509 comprises a driving limiting roller 5091, an external limiting roller 5092 and an internal limiting roller 5093 which are rotatably arranged inside the two mounting plates 507, the driving limiting roller 5091 and the external limiting roller 5092 are in close contact with the inner wall of the limiting belt 510, the internal limiting roller 5093 is in close contact with the outer wall of the limiting belt 510, one end of the rotating shaft of the driving limiting roller 5091 is fixedly connected with the output shaft of the second motor 5094, the second motor 5094 is fixedly arranged on the mounting plate 507, the two limiting rotating pieces 509 limit the limiting belt 510 into a concave shape, so that the limiting belt 510 can limit the wheel body 702, the transverse moving piece comprises a lower supporting plate 501 arranged between the fixed moving base 3 and the upper supporting plate 504, the top end of the fixed moving base 3 is symmetrically provided with a second jack 502, the lower supporting plate 501 is fixedly connected with the output end of the second jack 502, the top end of the lower supporting plate 501 is symmetrically provided with a sliding groove 503, the bottom end of the upper supporting plate 504 is symmetrically provided with a sliding block 505, the sliding block 505 is slidably connected with the sliding groove 503, one side of the sliding block 505 away from the lifting mounting assembly 4 is fixedly connected with the output end of the air cylinder 506, the air cylinder 506 is fixedly arranged on the side wall of the lower supporting plate 501, the wheel body 702 is limited inside the limiting belt 510, the sliding block 505 at the bottom end of the upper supporting plate 504 is slidably arranged inside the sliding groove 503, when it is necessary to maintain and replace one side of the wheel body 702, the upper supporting plate 504 is moved towards the movable moving base 401 by the air cylinder 506, so that the limiting belt 510 is moved below the connecting shaft 701, the obstacle outside the wheel body 702 is removed, thereby facilitating the maintenance and replacement of the wheel body 702.

[0035] The lifting installation assembly 4 comprises a movable moving base 401 arranged between the two fixed moving bases 3, a first jack 402 is fixedly installed at the top end of the movable moving base 401, a push plate 403 is installed at the output end of the first jack 402, the inner arc surface of the push plate 403 is tightly attached to the outer wall of the connecting shaft 701, a plurality of self-locking rollers are installed at the bottom of the movable moving base 401 and the bottom of the fixed moving base 3, a rod groove 405 is arranged on the fixed moving base 3, a cross rod 406 is movably installed in the rod groove 405, a connecting rod 407 is arranged between the side wall of the movable moving base 401 and the end of the cross rod 406 close to the movable moving base 401, the two ends of the connecting rod 407 are hingedly connected with the cross rod 406 and the movable moving base 401 respectively, a sliding frame 404 is symmetrically installed at the two ends of the connecting base 1, a sliding block 408 is fixedly installed at one end of the cross rod 406, the two sliding blocks 408 are slidably installed in the two sliding frames 404 respectively, a double-headed screw rod 409 is rotatably installed in the connecting base 1, the two ends of the double-headed screw rod 409 are rotatably installed in the sliding frames 404 respectively, two screw grooves on the double-headed screw rod 409 are located in the two sliding frames 404 respectively, the two sliding blocks 408 are threadedly connected with the two screw grooves with opposite directions on the double-headed screw rod 409, one end of the double-headed screw rod 409 is fixedly connected with the output shaft of a first motor 410, the first motor 410 is fixedly installed at the end of the sliding frame 404, the push plate 403 limits the connecting shaft 701, the two sets of limiting rotating pieces 509 limit the limiting belts 510 into a concave shape, and the wheel bodies 702 are limited, so that the lifting stability of the wheel 7 is improved, the wheel 7 is convenient to maintain, and when the limiting belts 510 are driven to move by the rotation of the driving limiting roller 5091 driven by the second motor 5094, the wheel body 702 is driven to rotate, and it is convenient for the staff to inspect and maintain the surface of the wheel body 702.

[0036] The holding and stabilizing assembly 6 comprises a mounting frame 603 fixedly mounted on the surface of the mounting plate 507 away from the movable moving seat 401, a rotating shaft 605 rotatably mounted at the end of the mounting frame 603, a rotating frame 604 mounted on the rotating shaft 605, the mounting plate 507 fixedly mounted at one end of the rotating frame 604, the gear 606 coaxially mounted at one end of the rotating shaft 605, and the rotating frame 604 horizontally arranged, and when the rotating frame 604 is rotated upward, the holding block 607 can be pressed against the top wall of the wheel body 702. The connecting rod 601 is fixedly mounted on the surface of the mounting plate 507 close to the movable moving seat 401, one end of the connecting rod 601 is fixedly mounted with the toothed plate 602, the connecting rod 601 passes through the gap between the two fixed moving seats 3 and the two lower supporting plates 501, the toothed plate 602 is engaged with the bottom of the gear 606 on the other side, the toothed plate 602 corresponding to the one side limiting belt 510 is engaged with the gear 606 on the other side, and when the one side limiting belt 510 moves toward the movable moving seat 401, the rotating shaft 605 at the end of the rotating frame 604 is driven by the toothed plate 602 to rotate upward around the mounting frame 603, so that the holding block 607 is pressed against the top end of the wheel body 702 which is not maintained or replaced, the wheel 7 is held and stabilized, and the maintenance stability is improved.

[0037] Working principle: when the wheel 7 of the airplane needs to be maintained, the equipment is moved to the back of the wheel 7 of the airplane, the positions of the two fixed moving seats 3 correspond to the positions of the two wheel bodies 702, the self-locking rollers at the bottom ends of the fixed moving seats 3 are locked, the first motor 410 is started, the double-headed screw rod 409 is driven to move the two sliding blocks 408 close to each other due to the threaded connection between the two sliding blocks 408 and the threaded grooves on the double-headed screw rod 409, thereby driving the two cross rods 406 to move close to each other, and then the movable moving seat 401 is pushed away from the connecting seat 1 by the two connecting rods 407, until the push plate 403 moves below the middle position of the connecting shaft 701, then the first jack 402 is started to push the push plate 403 upward, so that the inner arc surface of the push plate 403 is in contact with the outer wall of the connecting shaft 701, and the wheel 7 is lifted up under the action of the first jack 402;

[0038] After the wheel body 702 is lifted up to above the top end of the limiting belt 510, the lifting is stopped, then the self-locking roller at the bottom end of the movable moving seat 401 is locked, and the self-locking roller at the bottom end of the fixed moving seat 3 is opened, then the first motor 410 is connected to the reverse current, so that the double-headed screw rod 409 rotates reversely, so that the two cross rods 406 move back, since the movable moving seat 401 is fixed, the connecting seat 1 is pulled towards the movable moving seat 401 through the connecting rod 407, until the two limiting belts 510 move to the inside of the two wheel bodies 702 respectively, then the machine wheel 7 is moved downwards through the first jack 402, so that the two wheel bodies 702 enter the inside of the two limiting belts 510, so that the limiting belt 510 limits the wheel body 702;

[0039] In use, the first jack 402 and the second jack 502 are used together to lift the machine wheel 7, so as to facilitate the maintenance of the machine wheel 7;

[0040] When it is necessary to check and maintain the outer surface of the wheel body 702, the second motor 5094 is started, so that the driving limiting roller 5091 rotates, since the driving limiting roller 5091 is in close contact with the inner wall of the limiting belt 510, the limiting belt 510 is driven to move, since the limiting belt 510 is in close contact with the outer wall of the wheel body 702, under the action of friction during the movement of the limiting belt 510, the wheel body 702 rotates, so as to facilitate the check and maintenance of the outer surface of the wheel body 702;

[0041] When it is necessary to replace the wheel body 702 on one side, the cylinder 506 on one side is started, so as to push the upper support plate 504 to move towards the movable moving seat 401, so that the limiting belt 510 on the side where the wheel body 702 needs to be replaced moves to the lower side of the connecting shaft 701, so that the wheel body 702 on one side is suspended, so as to facilitate the replacement and maintenance of the wheel body 702;

[0042] When the limiting belt 510 on one side moves to the lower side of the connecting shaft 701, the mounting plate 507 moves towards the movable moving seat 401, so that the toothed plate 602 moves away from the movable moving seat 401, and the toothed plate 602 is engaged with the gear 606 on the other side, so as to drive the rotating shaft 605 at the end of the rotating frame 604 to rotate upwards around the mounting frame 603, until the clamping block 607 is pressed against the top wall of the wheel body 702 which does not need to be replaced, so as to improve the pressing and fixing effect of the machine wheel 7, and improve the stability of the replacement and maintenance of the wheel body 702 on one side.

[0043] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An aircraft equipment maintenance device comprising a connection seat (1), characterized in that: The top end of the connecting seat (1) is provided with a push handle (2), and the front surface of the connecting seat (1) is symmetrically provided with two fixed moving seats (3), and the two fixed moving seats (3) are provided with a machine wheel (7) above; The machine wheel (7) comprises a connecting shaft (701), and the two ends of the connecting shaft (701) are symmetrically provided with wheel bodies (702); A lifting installation assembly (4) is arranged between the two fixed moving seats (3), and the lifting installation assembly (4) is used for lifting the connecting shaft (701); and the top end of the fixed moving seat (3) is provided with a lifting maintenance assembly (5), and the lifting maintenance assembly (5) is used for lifting the wheel body (702); The lifting maintenance assembly (5) comprises an upper supporting plate (504) arranged above the fixed moving seat (3), two installation plates (507) symmetrically arranged at the top end of the upper supporting plate (504), a limiting belt (510) arranged in the installation plate (507), two limiting rotating members (509) symmetrically arranged between the two installation plates (507), the limiting rotating member (509) being used for driving the limiting belt (510) to move, thereby driving the wheel body (702) to rotate, a transverse moving member arranged between the fixed moving seat (3) and the upper supporting plate (504), and a clamping stabilizing assembly (6) arranged on the installation plate (507); The clamping stabilizing assembly (6) comprises a mounting bracket (603) fixedly arranged on the surface of the installation plate (507) away from the movable moving seat (401), a rotating shaft (605) rotatably arranged at the end of the mounting bracket (603), a rotating bracket (604) arranged on the rotating shaft (605), an installation plate (507) fixedly arranged at one end of the rotating bracket (604), a gear (606) coaxially arranged at one end of the rotating shaft (605), and the rotating bracket (604) being horizontally arranged, and when the rotating bracket (604) is rotated upwards, the clamping block (607) can be pressed on the top wall of the wheel body (702).

2. An aircraft maintenance device as claimed in claim 1, characterised in that: Two installation plates (507) are fixedly arranged between the two installation plates (507), and a connecting supporting plate (508) is arranged on the inner side of the limiting belt (510), and the top wall of the connecting supporting plate (508) is in contact with the inner top wall of the limiting belt (510), and the connecting supporting plate (508) can provide supporting force for the wheel body (702).

3. An apparatus for servicing an aircraft as defined in claim 1, wherein: The limiting rotating member (509) comprises a driving limiting roller (5091), an external limiting roller (5092) and an internal limiting roller (5093) rotatably arranged on the inner side of the two installation plates (507), the driving limiting roller (5091) and the external limiting roller (5092) are in close contact with the inner wall of the limiting belt (510), the internal limiting roller (5093) is in close contact with the outer wall of the limiting belt (510), the rotating shaft of the driving limiting roller (5091) is fixedly connected with the output shaft of the second motor (5094), the second motor (5094) is fixedly arranged on the installation plate (507), and the two limiting rotating members (509) limit the limiting belt (510) into a concave shape, so that the limiting belt (510) can limit the wheel body (702).

4. An aircraft maintenance device as claimed in claim 1, characterised in that: The transverse moving piece comprises a lower supporting plate (501) arranged between the fixed moving seat (3) and an upper supporting plate (504), the top end of the fixed moving seat (3) is symmetrically provided with a second jack (502), the lower supporting plate (501) is fixedly connected with the output end of the second jack (502), the top end of the lower supporting plate (501) is symmetrically provided with a sliding groove (503), the bottom end of the upper supporting plate (504) is symmetrically provided with a sliding block (505), the sliding block (505) is slidably connected with the sliding groove (503), the side, away from the lifting installation assembly (4), of the sliding block (505) is fixedly connected with the output end of a pneumatic cylinder (506), and the pneumatic cylinder (506) is fixedly installed on the side wall of the lower supporting plate (501).

5. An apparatus for servicing an aircraft as defined in claim 1, wherein: The lifting installation assembly (4) comprises a movable moving seat (401) arranged between the two fixed moving seats (3), the top end of the movable moving seat (401) is fixedly provided with a first jack (402), the output end of the first jack (402) is provided with a push plate (403), the inner arc surface of the push plate (403) is in close contact with the outer wall of the connecting shaft (701), and the bottom of the movable moving seat (401) and the bottom of the fixed moving seat (3) are both provided with a plurality of self-locking rollers.

6. An apparatus for servicing an aircraft as defined in claim 1, wherein: The fixed moving seat (3) is provided with a rod groove (405), the inside of the rod groove (405) is movably provided with a cross rod (406), one end of the cross rod (406), close to the movable moving seat (401), is provided with a connecting rod (407) between the side wall of the movable moving seat (401), the two ends of the connecting rod (407) are hingedly connected with the cross rod (406) and the movable moving seat (401) respectively, the two ends of the connecting seat (1) are symmetrically provided with sliding frames (404), one end of the cross rod (406) is fixedly provided with sliding blocks (408), and the two sliding blocks (408) are slidably arranged in the two sliding frames (404) respectively.

7. An apparatus for servicing an aircraft as defined in claim 1, wherein: The inside of the connecting seat (1) is rotatably provided with a double-head screw rod (409), the two ends of the double-head screw rod (409) are rotatably arranged in the inside of the sliding frame (404) respectively, the two screw grooves on the double-head screw rod (409) are located in the two sliding frames (404) respectively, the two sliding blocks (408) are in threaded connection with the two screw grooves with opposite directions on the double-head screw rod (409) respectively, one end of the double-head screw rod (409) is fixedly connected with the output shaft of a first motor (410), and the first motor (410) is fixedly installed on the end of the sliding frame (404).

8. An apparatus for servicing an aircraft as defined in claim 1, wherein: The surface of the side, close to the movable moving seat (401), of the mounting plate (507) is fixedly provided with a connecting rod (601), one end of the connecting rod (601) is fixedly provided with a toothed plate (602), the connecting rod (601) passes through the gap between the two fixed moving seats (3) and the two lower supporting plates (501), and the toothed plate (602) is in meshing connection with the bottom of the gear (606) on the other side.

Images