A support device for maintenance

Abstract

This utility model provides a support device for aircraft maintenance, relating to the technical field of support devices. It includes a housing positioning member movably connected to the housing; the positioning member is movably connected to the housing and can be selectively housed within the housing or protrude from the top of the housing; a moving member is movably connected to the housing and can be selectively housed within the housing or protrude from the bottom of the housing; a drive assembly is disposed within the housing and cooperates with the moving member and the positioning member, and is adapted to drive the moving member and the positioning member to move. This utility model's support device can serve as a conventional support device to provide stable support for aircraft maintenance equipment, and also has a movable function to facilitate the transportation of aircraft maintenance equipment. Furthermore, it can be fixed in place after reaching the working position, meeting the needs of aircraft maintenance work at different stages.

Description

Technical Field

[0001] This utility model relates to the field of support device technology, and more specifically, to a support device for aircraft maintenance. Background Technology

[0002] Aircraft maintenance equipment requires support devices for support. In some existing technologies, the support devices cannot be moved, making it difficult to transport them. When the maintenance equipment needs to be moved, the staff has to move the maintenance equipment and the support devices separately, resulting in a heavy workload. In other existing technologies, the bottom of the support device is equipped with casters, but when the maintenance equipment is moved to the preset position, the casters cannot stably fix the support device and the maintenance equipment. Utility Model Content

[0003] The purpose of this utility model is to provide a support device for aircraft maintenance to improve the above-mentioned problems. To achieve the above objective, the technical solution adopted by this utility model is as follows:

[0004] This application provides a support device for aircraft maintenance, comprising: a housing; a positioning member movably connected to the housing, the positioning member being movable to be selectively received within the housing or protruding from the top of the housing, the positioning member being adapted to cooperate with an aircraft maintenance device to limit the aircraft maintenance device to the top of the housing; a moving member movably connected to the housing, the moving member being movable to be selectively received within the housing or protruding from the bottom of the housing; and a drive assembly disposed within the housing, the drive assembly cooperating with the moving member and the positioning member, and adapted to drive the moving member and the positioning member to move.

[0005] According to some embodiments of the present invention, the driving assembly includes a rotary motor and a driving rod. The output shaft of the rotary motor is coaxially arranged with the driving rod. The output shaft of the rotary motor cooperates with a moving member. The driving rod cooperates with the positioning member. The rotary motor is adapted to move in the height direction of the housing to selectively engage with the driving rod.

[0006] According to some embodiments of this utility model, the outer peripheral wall of the drive rod is provided with a first thread, the positioning member is provided with a connecting channel that is open in the axial direction, and the inner peripheral wall of the connecting channel is provided with a second thread that mates with the first thread; the outer peripheral wall of the output shaft is provided with a third thread, the moving member is provided with a connecting hole that is through in the axial direction, the moving member is sleeved on the outer periphery of the output shaft through the connecting hole, and the inner peripheral wall of the connecting hole is provided with a fourth thread that is suitable for mates with the third thread.

[0007] According to some embodiments of the present invention, the drive rod is provided with a mating groove that opens toward the output shaft, the inner peripheral wall of the mating groove is provided with a first limiting block, and the outer peripheral wall of the free end of the output shaft is provided with a second limiting block. When the free end of the output shaft is received in the mating groove, the first limiting block is adapted to abut against the second limiting block in the circumferential direction.

[0008] According to some embodiments of the present invention, the drive assembly further includes a telescopic motor, which is connected to and located inside the housing, and the piston rod of the telescopic motor is connected to the rotary motor.

[0009] According to some embodiments of the present invention, the outer peripheral wall of the drive rod is provided with a plurality of connecting rods extending radially, the free ends of the plurality of connecting rods being connected to the inner peripheral wall of the connecting ring, the inner peripheral wall of the housing being provided with an annular groove extending circumferentially, and at least a portion of the connecting ring being slidably received within the annular groove.

[0010] According to some embodiments of the present invention, the movable component includes multiple columns, which extend in the height direction of the housing and are connected by a connecting bracket. The connecting bracket is provided with the connecting hole, and the bottom of each of the multiple columns is provided with a caster wheel.

[0011] According to some embodiments of the present invention, the movable component moves and has a first position and a second position. In the first position, the universal wheel is housed in the housing. In the second position, the universal wheel protrudes from the bottom of the housing. The side wall of the housing is provided with a first through hole suitable for communicating the interior of the housing with the external environment. The column is provided with a mating hole. In the second position, the first through hole and the mating hole are directly opposite each other. The fixing pin passes through the first through hole and is housed in the mating hole to fix the column to the housing.

[0012] According to some embodiments of the present invention, a sliding groove extending along the height direction of the housing is provided inside the housing, and a slider is provided on the column, the slider being movably housed in the sliding groove.

[0013] According to some embodiments of the present invention, the positioning member is constructed as a positioning rod, the cross-section of the positioning rod is polygonal or irregular, the top of the housing is provided with a second through hole suitable for communicating the interior of the housing with the external environment, and the outer peripheral wall of the positioning rod and the inner peripheral wall of the second through hole abut against each other in the circumferential direction.

[0014] The beneficial effects of this utility model are as follows:

[0015] This invention controls the operation of the drive assembly to move the drive positioning component and / or the moving component. This allows the drive positioning component to be housed inside the housing or its top to protrude from the top of the housing, and the drive moving component to be housed inside the housing or its bottom to protrude from the bottom of the housing. This enables the support device to stably support or move the maintenance equipment, and also facilitates storage, transportation, and movement. Therefore, the support device of this application can function as a regular support device to stably support the maintenance equipment, while also possessing a moving function for convenient transportation of the maintenance equipment. Furthermore, it can be fixed in place after reaching the working position, meeting the needs of maintenance work at different stages.

[0016] Other features and advantages of this invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing embodiments of the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures particularly pointed out in the written description, claims, and drawings. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a cross-sectional view of the support device of this utility model;

[0019] Figure 2 for Figure 1 A magnified view of A in the center circle;

[0020] Figure 3 This is a schematic diagram of the support device of this utility model;

[0021] Figure 4 This is a schematic diagram showing the cooperation of the positioning component, the moving component, and the driving component of this utility model.

[0022] Marked in the image:

[0023] 10. Housing; 11. Slide groove; 20. Positioning component; 21. Connecting channel; 31. Column; 311. Slider; 32. Connecting bracket; 33. Caster wheel; 41. Rotary motor; 411. Output shaft; 412. Second limit block; 42. Drive rod; 421. Mating groove; 422. First limit block; 43. Telescopic motor; 44. Connecting rod; 45. Connecting ring. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to illustrate selected embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0025] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, in the description of this utility model, terms such as "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0026] like Figures 1-4 As shown, this embodiment provides a support device for aircraft maintenance, including: a housing 10, a positioning member 20, a moving member, and a drive assembly. The positioning member 20 is movably connected to the housing 10 and can be selectively housed within the housing 10 or protrude from the top of the housing 10. The positioning member 20 is adapted to cooperate with an aircraft maintenance device to limit the aircraft maintenance device to the top of the housing 10. The moving member is movably connected to the housing 10 and can be selectively housed within the housing 10 or protrude from the bottom of the housing 10. The drive assembly is disposed within the housing 10 and cooperates with the moving member and the positioning member 20, and is adapted to drive the moving member and the positioning member 20 to move.

[0027] In some embodiments, a working space is provided inside the housing 10, and the top of the housing 10 is adapted to abut against the bottom of the maintenance device to support the maintenance device. The positioning member 20 is movably connected to the housing 10. The positioning member 20 can change its position by moving. That is, the positioning member 20 can be housed in the working space, or the top of the positioning member 20 can protrude from the top of the housing 10. The top of the positioning member 20 is adapted to cooperate with the maintenance device to restrict and fix the maintenance device to the top of the housing 10. The moving member is also movably connected to the housing 10. The moving member can move within the housing 10 as needed, so that the moving member is completely housed in the working space, or the bottom of the moving member protrudes from the bottom of the housing 10. When the bottom of the moving member protrudes from the support device, the support device can move based on the moving member. The drive assembly is disposed inside the housing 10. The drive assembly cooperates with the moving member and the positioning member 20 respectively. The drive assembly can provide power for the movement of the moving member and the positioning member 20, driving the moving member and the positioning member 20 to move in a predetermined manner.

[0028] Understandably, when the maintenance equipment needs to be supported and secured, the drive assembly activates to move the positioning member 20 from inside the housing 10 outwards until the top of the positioning member 20 protrudes from the top of the housing 10. At this point, the positioning member 20 can connect with the corresponding mating parts on the maintenance equipment, for example, through slots or threads, thereby accurately positioning the maintenance equipment on the top of the housing 10 and ensuring the stability of the maintenance equipment during operation.

[0029] Of course, when the positioning element 20 is not needed or when the support device needs to be stored or transported, the drive component drives the positioning element 20 in the reverse direction, causing the positioning element 20 to move into the housing 10, and finally the positioning element 20 is completely housed inside the housing 10, reducing the overall volume of the support device.

[0030] When it is necessary to move the support device and the maintenance equipment fixed on it, the drive assembly drives the moving part to move outward of the housing 10, so that the moving part protrudes from the bottom of the housing 10. The bottom of the moving part can be equipped with structures such as casters 33, allowing the support device to move flexibly on the ground via the casters 33, facilitating the transportation of the maintenance equipment to different work locations. When it reaches the preset work position and needs to be fixed, the drive assembly drives the moving part to move inward of the housing 10, so that the moving part is housed inside the housing 10. At this time, the contact area between the support device and the ground increases, and the friction increases, thereby fixing the support device and preventing movement of the equipment during maintenance.

[0031] It is worth mentioning that the drive component can achieve its driving function in various ways. For example, a motor-driven lead screw and nut mechanism can be used. The forward and reverse rotation of the motor drives the lead screw to rotate, thereby causing the nut to move linearly along the lead screw. The nut is connected to the positioning component 20 or the moving component, thus realizing the movement of the positioning component 20 and the moving component. Alternatively, a hydraulic drive can be used, where a hydraulic pump supplies pressurized oil, and the extension and retraction of the hydraulic cylinder controls the movement of the positioning component 20 and the moving component. There are no restrictions on this.

[0032] According to the present invention, a support device for aircraft maintenance is provided. By controlling the operation of the drive assembly to move the drive positioning member 20 and / or the moving member, the drive positioning member 20 is housed inside the housing 10 or its top protrudes from the top of the housing 10, and the drive moving member is housed inside the housing 10 or its bottom protrudes from the bottom of the housing 10. This allows the support device to stably support or move the aircraft maintenance device, and also makes it easy to store, transport, and move. Thus, the support device of this application can not only serve as a general support device to stably support the aircraft maintenance device, but also has a moving function to facilitate the transport of the aircraft maintenance device, and can also be fixed after reaching the working position, meeting the needs of aircraft maintenance work at different stages.

[0033] According to some embodiments of the present invention, the drive assembly includes a rotary motor 41 and a drive rod 42. The output shaft 411 of the rotary motor 41 is coaxially arranged with the drive rod 42. The output shaft 411 of the rotary motor 41 cooperates with a moving member, and the drive rod 42 cooperates with a positioning member 20. The rotary motor 41 is adapted to move in the height direction of the housing 10 to selectively engage with the drive rod 42.

[0034] Understandably, when the moving part needs to be driven independently, the rotary motor 41 is in a state separated from the drive rod 42. At this time, the rotary motor 41 starts, and the output shaft 411 of the rotary motor 41 begins to rotate. Since the output shaft 411 cooperates with the moving part, for example through threaded connection, gear transmission, etc., the rotation of the output shaft 411 is converted into linear motion of the moving part, thereby causing the moving part to move relative to the housing 10, so that the moving part is housed in the housing 10 or the bottom of the moving part protrudes from the bottom of the housing 10.

[0035] Of course, when it is necessary to move the positioning member 20, the rotating motor 41 moves in the height direction of the housing 10, so that the output shaft 411 engages with the drive rod 42 (the engagement method can be through spline connection, flat key connection, etc., to ensure that the power of the rotating motor 41 can be stably transmitted to the drive rod 42). After the output shaft 411 engages with the drive rod 42, the rotating motor 41 starts, and the drive rod 42 rotates accordingly. Since the drive rod 42 cooperates with the positioning member 20 (also through thread, gear, etc. transmission methods), the rotation of the drive rod 42 will drive the positioning member 20 to move, so that the positioning member 20 can be selectively received in the housing 10 or protrude from the top of the housing 10.

[0036] It should be noted that after the output shaft 411 is engaged with the drive rod 42, the rotation of the rotating motor 41 can simultaneously drive the positioning component 20 and the moving component to move.

[0037] According to some embodiments of the present invention, the outer peripheral wall of the drive rod 42 is provided with a first thread, the positioning member 20 is provided with a connecting channel 21 that is open in the axial direction, and the inner peripheral wall of the connecting channel 21 is provided with a second thread that mates with the first thread; the outer peripheral wall of the output shaft 411 is provided with a third thread, the moving member is provided with a connecting hole that is through in the axial direction, the moving member is sleeved on the outer periphery of the output shaft 411 through the connecting hole, and the inner peripheral wall of the connecting hole is provided with a fourth thread that is suitable for mates with the third thread.

[0038] In some embodiments, since the first thread on the outer peripheral wall of the drive rod 42 engages with the second thread on the inner peripheral wall of the connecting channel 21 of the positioning member 20, according to the principle of threaded transmission, the positioning member 20 will move linearly along the axial direction of the drive rod 42 during rotation (the axial direction of the drive rod 42 is parallel to the height direction of the housing 10). When the drive rod 42 rotates in one direction, the positioning member 20 will move outward from inside the housing 10; when the drive rod 42 rotates in the opposite direction, the positioning member 20 will move inward from inside the housing 10.

[0039] Similarly, since the third thread on the outer peripheral wall of the output shaft 411 and the fourth thread on the inner peripheral wall of the connecting hole of the moving part are engaged with each other, according to the principle of thread transmission, the rotation of the output shaft 411 will cause the moving part to move linearly along the axial direction of the output shaft 411. When the output shaft 411 rotates in one direction, the moving part will move outward from the housing 10; when the output shaft 411 rotates in the opposite direction, the moving part will move inward from the housing 10.

[0040] It is worth mentioning that the threaded drive has a self-locking function. When the drive rod 42 or the output shaft 411 stops rotating, the positioning part 20 and the moving part will automatically lock in their current positions under the action of the thread. At this time, the positioning part 20 and the moving part will not move easily due to external force, which can ensure that the support device remains stable when supporting the maintenance device, avoid safety accidents caused by the accidental movement of the positioning part 20 or the moving part, and improve work safety.

[0041] According to some embodiments of the present invention, the drive rod 42 is provided with a mating groove 421 that opens toward the output shaft 411. A first limiting block 422 is provided on the inner peripheral wall of the mating groove 421, and a second limiting block 412 is provided on the outer peripheral wall of the free end of the output shaft 411. When the free end of the output shaft 411 is received in the mating groove 421, the first limiting block 422 is adapted to abut against the second limiting block 412 in the circumferential direction.

[0042] In some embodiments, when it is necessary to engage the output shaft 411 of the rotary motor 41 with the drive rod 42, the rotary motor 41 is controlled to move in the height direction of the housing 10, so that the free end of the output shaft 411 gradually approaches and is finally received in the mating groove 421 of the drive rod 42. At this time, the rotary motor 41 works and causes the output shaft 411 to rotate. When the output shaft 411 rotates to the point where the second limit block 412 and the first limit block 422 stop, the rotation of the output shaft 411 can drive the drive rod 42 to rotate.

[0043] Understandably, the first limiting block 422 and the second limiting block 412 stop in the circumferential direction, ensuring that the output shaft 411 and the drive rod 42 can be closely synchronized during rotation, so that the power of the rotating motor 41 can be stably and reliably transmitted to the drive rod 42, thereby ensuring that the positioning member 20 can move in the expected manner, and improving the working stability and reliability of the support device.

[0044] According to some embodiments of the present invention, the drive assembly further includes a telescopic motor 43, which is connected to and located inside the housing 10, and the piston rod of the telescopic motor 43 is connected to the rotary motor 41.

[0045] In some embodiments, the telescopic motor 43 is disposed inside the housing 10 and fixedly connected to the housing 10. The piston rod of the telescopic motor 43 is connected to the rotary motor 41. The piston rod of the telescopic motor 43 can telescopically move along the height direction of the housing 10. Thus, the operation of the telescopic motor 43 can drive the rotary motor 41 to move through the piston rod, thereby realizing the control of whether the output shaft 411 is engaged with the drive rod 42.

[0046] According to some embodiments of the present invention, the outer peripheral wall of the drive rod 42 is provided with a plurality of connecting rods 44 extending radially, the free ends of the plurality of connecting rods 44 are all connected to the inner peripheral wall of the connecting ring 45, the inner peripheral wall of the housing 10 is provided with an annular groove extending circumferentially, and at least a portion of the connecting ring 45 is slidably received in the annular groove.

[0047] In some embodiments, at least a portion of the connecting ring 45 is slidably received within an annular groove, thereby allowing the connecting ring 45 to rotate stably relative to the housing 10 in the circumferential direction. The inner peripheral wall of the annular groove can restrict at least a portion of the outer peripheral wall of the connecting ring 45 to prevent the connecting ring 45 from moving relative to the housing 10 in the height direction. Since the connecting ring 45 is connected to the drive rod 42 via a plurality of connecting rods 44, the degree of freedom of the drive rod 42 in the height direction of the housing 10 can be limited, so that the drive rod 42 only has the degree of freedom of rotation in the circumferential direction, thereby allowing the drive rod 42 to engage stably and fix the positioning member 20 in the correct position.

[0048] According to some embodiments of the present invention, the movable component includes a plurality of columns 31, which extend in the height direction of the housing 10 and are connected by a connecting bracket 32. The connecting bracket 32 ​​is provided with a connecting hole, and the bottom of the plurality of columns 31 is provided with a universal wheel 33.

[0049] Understandably, when the drive rod 42 in the drive assembly rotates, since the drive rod 42 is connected to the connecting hole on the connecting bracket 32, the rotation of the drive rod 42 will drive the connecting bracket 32 ​​to move. The connecting bracket 32 ​​connects multiple columns 31 together, so the movement of the connecting bracket 32 ​​can drive the multiple columns 31 to move together. When the column 31 moves to the point where the caster wheel 33 stops against the ground and there is a gap between the housing 10 and the ground, the support device can move through the caster wheel 33. When the support device moves to the preset position, the rotating motor 41 works to drive the connecting bracket 32 ​​to move, so that the caster wheel 33 can be housed in the housing 10.

[0050] According to some embodiments of the present invention, the movable member moves and has a first position and a second position. In the first position, the universal wheel 33 is housed in the housing 10. In the second position, the universal wheel 33 protrudes from the bottom of the housing 10. The side wall of the housing 10 is provided with a first through hole suitable for communicating the interior of the housing 10 with the external environment. The column 31 is provided with a mating hole. In the second position, the first through hole and the mating hole are directly opposite each other. The fixing pin passes through the first through hole and is housed in the mating hole to fix the column 31 to the housing 10.

[0051] Understandably, in the first position, the caster wheel 33 is housed within the housing 10, and the support device does not need to move, with the housing 10 in direct contact with the ground. In the second position, the caster wheel 33 protrudes from the bottom of the housing 10. At this point, the caster wheel 33 needs to bear the weight of the housing 10, the rotating motor 41, and the telescopic motor 43. Therefore, this application improves the positioning capability of the caster wheel 33 relative to the housing 10 in the height direction by using a fixing pin that passes through the first through hole and engages with the mating hole. This ensures the positional stability of the caster wheel 33 during the movement of the support device, thereby ensuring that the support device can move stably via the caster wheel 33.

[0052] According to some embodiments of the present invention, a sliding groove 11 extending along the height direction of the housing 10 is provided inside the housing 10, and a slider 311 is provided on the column 31, which is movably housed in the sliding groove 11.

[0053] It is understandable that the inner peripheral wall of the slide groove 11 can restrict the outer peripheral wall of the slider 311, so that the slider 311 can move stably along the extension direction of the slide groove 11, thereby allowing the column 31 to move stably relative to the housing 10, thus ensuring the working stability of the moving part.

[0054] According to some embodiments of the present invention, the positioning member 20 is constructed as a positioning rod, the cross-section of the positioning rod is polygonal or irregular, the top of the housing 10 is provided with a second through hole suitable for communicating the interior of the housing 10 with the external environment, and the outer peripheral wall of the positioning rod and the inner peripheral wall of the second through hole abut against each other in the circumferential direction.

[0055] In some embodiments, the positioning rod has a polygonal or irregular cross-section, and the shape of the second through hole matches the cross-section of the positioning rod. Thus, the inner peripheral wall of the second through hole can restrict the outer peripheral wall of the positioning rod, thereby limiting the positioning rod's degree of freedom of rotation relative to the housing 10 in the circumferential direction. Preferably, a positioning groove is provided at the bottom of the maintenance device, and the cross-section of the positioning groove matches the cross-section of the positioning rod. Therefore, after the maintenance device and the positioning rod cooperate, rotation relative to the housing 10 can be prevented, allowing the maintenance device to stably cooperate with the support device.

[0056] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

[0057] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A support device for use in maintenance, characterized in that include: Shell (10); Positioning element (20), the positioning element (20) is movably connected to the housing (10), the positioning element (20) is movable to be selectively received in the housing (10) or protruding from the top of the housing (10), the positioning element (20) is adapted to cooperate with the maintenance equipment to limit the maintenance equipment to the top of the housing (10); A movable component, which is movably connected to the housing (10), and the movable component is movable to be selectively housed within the housing (10) or protruding from the bottom of the housing (10); A drive assembly is disposed within the housing (10), the drive assembly cooperates with the moving part and the positioning part (20), and is adapted to drive the moving part and the positioning part (20) to move.

2. The servicing support device according to claim 1, characterized in that The drive assembly includes a rotary motor (41) and a drive rod (42). The output shaft (411) of the rotary motor (41) is coaxially arranged with the drive rod (42). The output shaft (411) of the rotary motor (41) cooperates with a moving part. The drive rod (42) cooperates with the positioning part (20). The rotary motor (41) is adapted to move in the height direction of the housing (10) to selectively engage with the drive rod (42).

3. The support device for aircraft maintenance according to claim 2, characterized in that, The outer peripheral wall of the drive rod (42) is provided with a first thread, the positioning member (20) is provided with a connecting channel (21) that is open in the axial direction, and the inner peripheral wall of the connecting channel (21) is provided with a second thread that mates with the first thread; the outer peripheral wall of the output shaft (411) is provided with a third thread, the moving member is provided with a connecting hole that is through in the axial direction, the moving member is sleeved on the outer periphery of the output shaft (411) through the connecting hole, and the inner peripheral wall of the connecting hole is provided with a fourth thread that is suitable for mates with the third thread.

4. The support device for aircraft maintenance according to claim 3, characterized in that, The drive rod (42) is provided with a mating groove (421) that opens toward the output shaft (411). The inner peripheral wall of the mating groove (421) is provided with a first limiting block (422), and the outer peripheral wall of the free end of the output shaft (411) is provided with a second limiting block (412). When the free end of the output shaft (411) is received in the mating groove (421), the first limiting block (422) is adapted to abut against the second limiting block (412) in the circumferential direction.

5. The support device for aircraft maintenance according to claim 4, characterized in that, The drive assembly also includes a telescopic motor (43), which is connected to the housing (10) and located inside the housing (10), and the piston rod of the telescopic motor (43) is connected to the rotary motor (41).

6. The support device for aircraft maintenance according to claim 2, characterized in that, The outer peripheral wall of the drive rod (42) is provided with a plurality of connecting rods (44) extending radially. The free ends of the plurality of connecting rods (44) are all connected to the inner peripheral wall of the connecting ring (45). The inner peripheral wall of the housing (10) is provided with an annular groove extending circumferentially. At least a portion of the connecting ring (45) is slidably received in the annular groove.

7. The support device for aircraft maintenance according to claim 3, characterized in that, The movable component includes multiple columns (31), which extend in the height direction of the housing (10) and are connected by a connecting bracket (32). The connecting bracket (32) is provided with the connecting hole, and the bottom of the multiple columns (31) is provided with casters (33).

8. The support device for aircraft maintenance according to claim 7, characterized in that, The movable component moves and has a first position and a second position. In the first position, the caster wheel (33) is housed in the housing (10). In the second position, the caster wheel (33) protrudes from the bottom of the housing (10). The side wall of the housing (10) is provided with a first through hole suitable for communicating the interior of the housing (10) with the external environment. The column (31) is provided with a mating hole. In the second position, the first through hole and the mating hole are directly opposite each other. The fixing pin passes through the first through hole and is housed in the mating hole to fix the column (31) to the housing (10).

9. The support device for aircraft maintenance according to claim 7, characterized in that, The housing (10) is provided with a sliding groove (11) extending along the height direction of the housing (10), and the column (31) is provided with a slider (311), which is movably housed in the sliding groove (11).

10. The support device for aircraft maintenance according to claim 3, characterized in that, The positioning element (20) is constructed as a positioning rod, the cross-section of the positioning rod is polygonal or irregular, and the top of the housing (10) is provided with a second through hole suitable for communicating the interior of the housing (10) with the external environment. The outer peripheral wall of the positioning rod and the inner peripheral wall of the second through hole abut against each other in the circumferential direction.

Images