Aerial equipment turnover device with positioning and locking functions

The aircraft equipment turnover device, which uses a cross-shear arm and a threaded drive system, solves the problems of insufficient positioning accuracy, locking stability and spatial adaptability of existing devices, and realizes precise positioning, stable locking and efficient turnover of aircraft equipment.

CN121913221APending Publication Date: 2026-04-24SEVEN TIANJIN INDAL
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SEVEN TIANJIN INDAL
Filing Date
2026-02-09
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

Existing aircraft equipment turnover devices are inadequate in terms of positioning accuracy, locking stability, and spatial adaptability, which makes large aircraft equipment prone to shaking and collision during transportation. They are also difficult to adapt to equipment of various sizes, are inflexible in use, occupy a lot of space, and are difficult to store.

Method used

Employing a cross-shear arm structure and a threaded drive system, linear movement is achieved through the cooperation of screws and nuts, driving the cross rotation of the moving plate and shear arm. Combined with elastic sleeves and multiple locking structures, the equipment can be precisely positioned and securely locked, and can be stored in the side wall of a container.

Benefits of technology

It achieves precise positioning and secure locking of aviation equipment, preventing shaking and collisions. It is compatible with various equipment specifications, occupies little space, is easy to operate, improves turnover efficiency and safety, and reduces the risk of equipment damage.

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Abstract

The invention discloses an aviation equipment turnover device with positioning and locking functions, and relates to the technical field of turnover devices. The device comprises a stroke plate, a supporting plate, a first shearing arm, a second shearing arm, a sliding seat, a moving plate, a clamping sleeve and a screw rod, a second bearing seat and a bearing support are arranged at one end of the stroke plate, a second rotating shaft is arranged at one end of the second shearing arm, the screw rod is rotationally installed in the bearing support, a nut is installed in the moving plate in an embedded mode, and the nut is connected with the sliding seat. A first rotating shaft is rotationally installed in the first bearing seat, a sliding frame is slidably installed on the outer wall of the first guide rail, third supporting shafts are installed at the two ends of the sliding frame, and a rail is arranged on one side of the stroke plate. By arranging the first shearing arm, the second shearing arm, a threaded transmission structure of the screw rod and the nut, the clamping sleeve assembly for elastic clamping and the sliding base capable of achieving sliding positioning, the problems that locking is not stable, adaptability is poor, storage is inconvenient, and the requirement for simultaneous positioning and locking of multiple goods cannot be met are solved.
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Description

Technical Field

[0001] This invention relates to the field of turnover device technology, and in particular to an aviation equipment turnover device with positioning and locking functions. Background Technology

[0002] In the field of aviation equipment turnover and transportation, large aviation equipment has extremely high requirements for positioning accuracy, locking stability and spatial adaptability of turnover devices due to its diverse specifications, precise structure and high value. At present, most aviation equipment turnover devices on the market adopt traditional clamping structures. Their guide rail installation method is unreasonable and it is difficult to efficiently adapt to the side wall of the container. As a result, the device occupies a lot of space and cannot flexibly adjust the installation position according to the internal layout of the container. When positioning large cargo of different specifications, the clamping distance adjustment mechanism of traditional devices is rigid and lacks an efficient transmission structure. It is difficult to accurately adapt to the positioning needs of various sizes of equipment and often causes positioning offset problems. Meanwhile, the locking structure design of existing devices has flaws, relying solely on a single mechanical clamp or simple threaded fixation. During transportation, these devices are susceptible to vibration and bumps, leading to locking failure and causing the aircraft equipment to shake or collide, seriously threatening its safety. Traditional devices are mostly bulky, difficult to store after use, and cannot achieve compact storage. Furthermore, a single device can only meet the positioning and locking needs of a single item, making it unsuitable for scenarios where multiple items are simultaneously moved within a container, resulting in extremely poor flexibility and convenience. Therefore, those skilled in the art have provided an aircraft equipment handling device with positioning and locking functions to solve the problems mentioned in the background art. Summary of the Invention

[0003] 1. Technical Solution

[0004] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: This invention relates to an aviation equipment turnover device with positioning and locking functions, comprising a travel plate, a support plate, a first shear arm, a second shear arm, a slide, a movable plate, a clamp, and a screw. A support plate is disposed on one side of the travel plate. Two sets of cross-distributed first and second shear arms are disposed between the support plate and the travel plate. A symmetrically distributed bearing seat and bearing bracket are disposed at one end of the travel plate. A rotating shaft is rotatably mounted inside the second bearing seat at one end of the second shear arm. A screw is rotatably mounted inside the bearing bracket. A movable plate is disposed on one side of the travel plate, and the movable plate is embedded within the movable plate. The screw is fitted with a nut threaded onto the outer wall of the screw. The inner wall of the support plate is provided with symmetrically distributed bearing seats. A rotating shaft connected to one end of a shear arm is rotatably mounted inside the bearing seats. A support shaft is rotatably mounted at one end of the shear arm and at both ends of the moving plate. The inner wall of the support plate is provided with symmetrically distributed guide rails. A slide is slidably mounted on the outer wall of the guide rails. A support shaft connected to a shear arm is rotatably mounted at both ends of the slide. A handle is provided at one end of the screw. A track is provided on one side of the travel plate. A slide seat connected to the travel plate is slidably sleeved on the outer wall of the track.

[0005] Furthermore, a support shaft is rotatably mounted at the intersection of shear arm one and shear arm two, and a sliding groove is provided at one end of the slide and is symmetrically distributed and slidably sleeved on the outer wall of guide rail one. Specifically, at the intersection of shear arm one and shear arm two, the rotational strength and stability are improved by the rotating support shaft two, and the carriage is supported by the slide groove on the outer wall of guide rail one.

[0006] Furthermore, each of the screws is provided with a sleeve whose inner wall is threaded to match the outer wall of the screw. Each sleeve is provided with a slider at both ends. A second spring is provided at one end of the slider, a rotating seat is provided at one end of the second spring, and a handle is provided on one side of the rotating seat. Specifically, the sleeve is supported by a slider and a spring, which allows the sleeve to be elastically clamped to the outer wall of the screw, and with the matching thread clamping, the screw is prevented from rotating arbitrarily.

[0007] Furthermore, a positioning cylinder located inside the second spring is provided at one end of the rotating seat, and a positioning rod connected to the slider is slidably installed inside one end of the positioning cylinder. A guide rail is provided at one end of the stroke plate, and the slider is slidably installed on the outer wall of the guide rail. Specifically, during the extension and retraction of spring two, the positioning rod slides inside the positioning cylinder to limit spring two and prevent it from shifting outward. The slider is supported by the lateral sliding of guide rail two.

[0008] Furthermore, a mounting shaft is rotatably mounted on one end of the rotating seat, and one end of the mounting shaft is connected to the handle. The guide rail II has symmetrically distributed positioning grooves inside, and the handle is snapped into the positioning groove for assembly. Specifically, the mounting shaft rotates inside the rotating seat, providing rotational support for the handle. After the handle moves with the compression of the spring, it rotates into the positioning groove, preventing the handle from moving arbitrarily. This allows the clamp to disengage from the screw, enabling the screw to rotate effectively.

[0009] Furthermore, the slide block has a stroke hole inside, the track has equidistantly distributed positioning holes inside, the outer wall of the stroke plate is provided with a sliding sleeve bracket, a pull rod with one end slidably installed inside the stroke hole and the other end located inside the positioning hole is slidably installed inside the sliding sleeve bracket, a support ring is sleeved on the outer wall of the pull rod, a spring is provided between the support ring and the sliding sleeve bracket and sleeved on the outside of the pull rod, and a pull handle is provided at the lower end of the pull rod; Specifically, gripping the handle facilitates applying pulling force to the pull rod, which pulls the second spring through the support ring. The longitudinally distributed pull rod is inserted into the slide block, and its end is located inside the positioning hole. The pull rod is inserted into the corresponding positioning hole to position the slide block after sliding.

[0010] 2. Beneficial effects

[0011] Compared with the prior art, the advantages of this invention are: In this invention, aviation equipment is transported through containers. Guide rails are installed on the side walls of the containers. When storing large cargo, both ends of the cargo are clamped by support plates to achieve cargo positioning and prevent the aviation equipment from shaking randomly during transport. Because linear movement is achieved through the threaded engagement of screws and nuts, when the moving plate moves, the first and second shearing arms rotate in a cross motion to adjust the position of the support plate and adapt to the clamping of cargo of different specifications. Meanwhile, the screw outer wall is clamped and locked by an elastically supported sleeve to prevent the screw from rotating arbitrarily after rotation. It works with a turnover device to position and lock the goods. After use, the equipment can be stored in the side wall of the container. It has a small structure and can accommodate the installation of multiple positioning and locking structures to meet the needs of positioning and locking multiple goods inside the container. It is flexible and convenient to use.

[0012] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1This is a side view of the first and second shear arms of the present invention from a three-dimensional perspective. Figure 2 This is a bottom-view three-dimensional structural diagram of the present invention; Figure 3 This is a side view of the second angle of the three-dimensional structure of shear arm one and shear arm two of the present invention; Figure 4 This is a bottom-view perspective view of the slide block structure of the present invention; Figure 5 This is a two-sided three-dimensional structural diagram of the guide rail of the present invention.

[0015] The attached diagram lists the components represented by each number as follows: 1. Travel plate; 2. Support plate; 3. Rail; 4. Shear arm one; 5. Shear arm two; 6. Slide; 7. Guide rail one; 8. Slide carriage; 9. Slide groove; 10. Moving plate; 11. Nut; 12. Jacket; 13. Screw; 14. Bearing bracket; 15. Handle; 16. Guide rail two; 17. Support shaft one; 18. Support shaft two; 19. Bearing seat one; 20. Rotating shaft one; 21. Bearing seat two; 22. Rotating shaft two; 23. Support shaft three; 24. Positioning hole; 25. Pull rod; 26. Slide sleeve bracket; 27. Spring one; 28. Pull handle; 29. ​​Support ring; 30. Handle; 31. Rotating seat; 32. Positioning cylinder; 33. Slider; 34. Positioning rod; 35. Spring two; 37. Mounting shaft; 38. Positioning groove. Detailed Implementation

[0016] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0017] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0018] Secondly, the present invention is described in detail with reference to the schematic diagrams. When describing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include the three-dimensional spatial dimensions of length, width, and depth.

[0019] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0020] Example 1

[0021] Please see Figure 1-5 As shown, this embodiment is an aviation equipment turnover device with positioning and locking functions, including a travel plate 1, a support plate 2, a shearing arm 4, a shearing arm 5, a slide 6, a moving plate 10, a clamp 12, and a screw 13. A support plate 2 is provided on one side of the travel plate 1. Two sets of shearing arms 4 and 5 are arranged in a cross-shaped pattern between the support plate 2 and the travel plate 1. A bearing seat 21 and a bearing bracket 14 are symmetrically distributed at one end of the travel plate 1. A rotating shaft 22 is rotatably installed inside the bearing seat 21 at one end of the shearing arm 5. A screw 13 is rotatably installed inside the bearing bracket 14. A moving plate 10 is provided on one side of the travel plate 1. The screw 13 is internally embedded with a nut 11 threaded onto the outer wall of the screw 13. The inner wall of the support plate 2 is provided with symmetrically distributed bearing seats 19. The bearing seats 19 are rotatably mounted with a rotating shaft 20 connected to one end of the shear arm 4. The shear arm 4 is provided with a support shaft 17 rotatably mounted at both ends of the moving plate 10. The inner wall of the support plate 2 is provided with symmetrically distributed guide rails 7. The outer wall of the guide rails 7 is slidably mounted with a slide 8. Both ends of the slide 8 are rotatably mounted with a support shaft 23 connected to the shear arm 5. The screw 13 is provided with a handle 15 at one end. The travel plate 1 is provided with a track 3 on one side. The outer wall of the track 3 is slidably sleeved with a slide seat 6 connected to the travel plate 1. A support shaft 18 is rotatably installed at the intersection of shear arm 4 and shear arm 5. One end of the slide 8 is provided with symmetrically distributed and slidably sleeved on the outer wall of guide rail 7. Each screw 13 is provided with a sleeve 12 on the outer side, the inner wall of which is threaded to match the outer wall of the screw 13. Each sleeve 12 is provided with a slider 33 at both ends. One end of the slider 33 is provided with a spring 35. One end of the spring 35 is provided with a rotating seat 31. One side of the rotating seat 31 is provided with a handle 30. One end of the rotating seat 31 is provided with a positioning cylinder 32 located inside the second spring 35. A positioning rod 34 connected to the slider 33 is slidably installed inside one end of the positioning cylinder 32. One end of the stroke plate 1 is provided with a guide rail 16, and the slider 33 is slidably installed on the outer wall of the guide rail 16. One end of the rotating seat 31 is rotatably mounted with an installation shaft 37, one end of which is connected to the handle 30. The guide rail 2 16 has symmetrically distributed positioning grooves 38 inside, and the handle 30 is snapped into the positioning grooves 38 for assembly. The slide block 6 has a stroke hole inside, the track 3 has a positioning hole 24 evenly distributed inside, the outer wall of the stroke plate 1 is provided with a sliding sleeve bracket 26, a pull rod 25 is slidably installed inside the sliding sleeve bracket 26 with one end slidably installed inside the stroke hole and the other end located inside the positioning hole 24, a support ring 29 is sleeved on the outer wall of the pull rod 25, a spring 27 is provided between the support ring 29 and the sliding sleeve bracket 26 and sleeved on the outside of the pull rod 25, and a pull handle 28 is provided at the lower end of the pull rod 25; Based on the implementation steps of Embodiment 1: Through the threaded engagement of the screw 13 and the nut 11 embedded in the moving plate 10, the rotational motion is converted into linear motion, which drives the moving plate 10 to move along the direction of the travel plate 1, thereby linking the cross-distributed shear arms 4 and 5 to rotate around the support shaft, realizing the adjustment of the spacing of the support plate 2 to adapt to the clamping and positioning requirements of different sized aviation equipment. The support shaft 18 at the intersection of shear arms 4 and 5 enhances the rotational strength and stability. The slide 8 provides stable support for shear arms 5 through the sliding of the slide groove 9 on the guide rail 7, ensuring a smooth and accurate adjustment process. A threaded sleeve 12 is provided on the outside of the screw 13. The sleeve 12 is elastically connected to the second spring 35 through the slider 33. In its natural state, it elastically clamps the outer wall of the screw 13 and uses the thread engagement to prevent the screw 13 from rotating arbitrarily, thus achieving locking. At the same time, after the slide 6 is adjusted in position by sliding along the track 3, the pull rod 25 is inserted into the positioning hole 24 of the track 3 under the elastic force of the first spring 27, completing the positioning of the slide 6 and further reinforcing the overall stability of the device to prevent displacement during equipment turnover. Pulling the handle 30 compresses the second spring 35, causing the sleeve 12 to slide laterally along the second guide rail 16 and disengage from the screw 13. Rotating the handle 30 makes it lock into the positioning groove 38, thus releasing the locking state of the screw 13. Grasping the pull handle 28 and pulling the pull rod 25 makes the pull rod 25 disengage from the positioning hole 24, thus realizing the position adjustment of the slide 6. The operation is flexible and convenient. The travel plate 1 of the device is assembled with the guide rail on the side wall of the container via the slide 6. According to the internal space of the container and the equipment storage plan, slide the slide 6 to the appropriate position, release the pull handle 28, and the spring 27 returns to its original position and pushes the pull rod 25 into the corresponding positioning hole 24 to complete the initial positioning of the slide 6 and realize the fixed installation of the device in the container. Multiple devices can be installed on the side wall of the container as needed to meet the requirements of simultaneous positioning and locking of multiple pieces of equipment. The aviation equipment to be transferred is placed between two sets of support plates 2. The operator rotates the handle 15 at one end of the screw 13, causing the screw 13 to rotate within the bearing bracket 14. Through the threaded transmission, the moving plate 10 moves towards the equipment. During the movement of the moving plate 10, the support shaft 17 pulls the shear arm 4 to rotate around the rotating shaft 20. At the same time, the shear arm 5 rotates around the rotating shaft 22, and the slide 8 slides along the guide rail 7 to provide support for the shear arm 5. The two sets of cross arms extend and retract synchronously, pushing the support plate 2 to gradually approach and fit against both ends of the equipment until the equipment is clamped and positioned, and then the rotation of the handle 15 is stopped. Release handle 30, spring 2 35 resets and pushes slider 33 to slide along guide rail 2 16, causing clamp 12 to move towards screw 13, so that the inner wall of clamp 12 engages with the outer wall of screw 13. The elastic tension of spring 2 35 makes clamp 12 tightly clamp screw 13, preventing screw 13 from rotating due to vibration during rotation, ensuring that support plate 2 remains clamped, and achieving stable locking of equipment. At this time, positioning rod 34 slides in positioning cylinder 32, which limits spring 2 35 and prevents it from deviating and affecting the locking effect. After reaching the destination, the operator holds handle 30 and pulls it outward to compress spring 2 35, causing the clip 12 to disengage from screw 13. The operator then rotates handle 30 to lock it into positioning groove 38, releasing the locking state of screw 13. The operator then rotates handle 15 in the opposite direction to move moving plate 10 away from the equipment. The cross arm unfolds, and support plate 2 separates from the equipment, allowing the aircraft equipment to be removed. If the position of the device needs to be adjusted, the operator pulls handle 28 to disengage pull rod 25 from positioning hole 24. After sliding slide block 6 to the target position, the operator releases handle 28 to complete the positioning. After the equipment is removed, continue to rotate the handle 15 in the opposite direction to make the support plate 2 fit with the travel plate 1. The cross arm retracts to its minimum volume, and the entire device is stored in the side wall of the container without occupying extra storage space, which is convenient for subsequent reuse. The cross arm is extended and retracted through the threaded transmission. The support plate 2 has high movement accuracy and can achieve precise positioning of the equipment. At the same time, the spacing adjustment range is wide and can adapt to the clamping needs of large aviation equipment of different specifications. There is no need to change the special clamps. It has strong versatility. It adopts a multi-locking structure of screw 13 thread positioning, clamp 12 elastic locking and slide 6 positioning, which effectively prevents the aviation equipment from shaking or shifting due to vibration and turbulence during the turnover process. The locking stability far exceeds that of traditional turnover devices, reducing the risk of equipment damage. The entire positioning, locking, unlocking, and storage process can be completed simply by rotating the handle 15 and operating the handle 30 and pull handle 28. No complicated tools are required, and a single person can operate it quickly, greatly improving turnover efficiency. The device has a small volume after shrinking and can be tightly packed into the side wall of the container without occupying storage space. Multiple devices can be combined and installed to meet the positioning and locking needs of multiple pieces of equipment in the container, with high space utilization. The cooperation structure of the "support shaft" and "guide rail" at the intersection of the shear arms with the slide 8 improves the overall rigidity and rotational stability of the device. The design of components such as springs, positioning cylinders 32 and positioning rods 34 avoids deviation during movement and extends the service life of the device, making it suitable for long-term and high-frequency aviation equipment turnover scenarios. To prevent aircraft equipment from shifting during turnover, the support plate 2 is precisely displaced through the coordinated operation of threaded transmission and cross arms, ensuring minimal positioning error and effectively preventing collision damage caused by shifting. This solves the problem of traditional devices having weak locking and being unable to withstand vibration and impact during turnover. The multiple locking structure forms a closed-loop protection, and the elastic clamping of the sleeve 12 can counteract the rotation tendency of the screw 13 caused by vibration, ensuring a continuous and stable locking state. A single device can achieve positioning and locking of multiple specifications of equipment, reducing equipment investment costs and improving the flexibility of turnover operations. The compact structure design after shrinking achieves efficient adaptation between the device and containers, improving the space utilization of containers. The simplified operation process and convenient control components reduce the labor intensity of operators, shorten the equipment loading and unloading time, and improve the overall turnover efficiency.

[0022] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0023] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An aviation equipment turnover device with positioning and locking functions, characterized in that: The system includes a travel plate (1), a support plate (2), a shear arm one (4), a shear arm two (5), a slide (6), a moving plate (10), a jacket (12), and a screw (13). The travel plate (1) has a support plate (2) on one side. Two sets of shear arms one (4) and shear arms two (5) are arranged in a cross pattern between the support plate (2) and the travel plate (1). The travel plate (1) has a bearing seat two (21) and a bearing bracket (14) symmetrically distributed at one end. The shear arm two (5) has a rotating shaft two (22) rotatably installed inside the bearing seat two (21) at one end. The screw (13) is rotatably installed inside the bearing bracket (14). The travel plate (1) has a moving plate (10) on one side. The moving plate (10) has a screw (13) embedded inside the screw (13). The nut (11) is installed with a wall thread. The inner wall of the support plate (2) is provided with symmetrically distributed bearing seats (19). The bearing seats (19) are rotatably installed with a rotating shaft (20) connected to one end of the shear arm (4). The shear arm (4) is provided with a support shaft (17) rotatably installed at both ends of the moving plate (10). The inner wall of the support plate (2) is provided with symmetrically distributed guide rails (7). The outer wall of the guide rails (7) is slidably installed with a slide (8). Both ends of the slide (8) are rotatably installed with a support shaft (23) connected to the shear arm (5). The screw (13) is provided with a handle (15) at one end. The travel plate (1) is provided with a track (3) on one side. The outer wall of the track (3) is slidably sleeved with a slide seat (6) connected to the travel plate (1).

2. The aircraft equipment turnover device with positioning and locking functions according to claim 1, characterized in that: The support shaft 2 (18) is rotatably installed at the intersection of the shear arm 1 (4) and the shear arm 2 (5). One end of the slide (8) is provided with symmetrically distributed and slidably sleeved on the outer wall of the guide rail 1 (7) with grooves (9).

3. The aviation equipment turnover device with positioning and locking functions according to claim 1, characterized in that: The outer side of the screw (13) is provided with a sleeve (12) whose inner wall is threaded to match the outer wall of the screw (13). Both ends of the sleeve (12) are provided with sliders (33). One end of the slider (33) is provided with a second spring (35). One end of the second spring (35) is provided with a rotating seat (31). One side of the rotating seat (31) is provided with a handle (30).

4. The aviation equipment turnover device with positioning and locking functions according to claim 3, characterized in that: One end of the rotating seat (31) is provided with a positioning cylinder (32) located inside the second spring (35). A positioning rod (34) connected to the slider (33) is slidably installed inside one end of the positioning cylinder (32). One end of the stroke plate (1) is provided with a guide rail (16). The slider (33) is slidably installed on the outer wall of the guide rail (16).

5. An aviation equipment turnover device with positioning and locking functions according to claim 4, characterized in that: The rotating seat (31) has a mounting shaft (37) rotatably mounted on one end. One end of the mounting shaft (37) is connected to the handle (30). The guide rail (16) has symmetrically distributed positioning grooves (38) inside. The handle (30) is snapped into the positioning grooves (38) for assembly.

6. The aviation equipment turnover device with positioning and locking functions according to claim 1, characterized in that: The slide block (6) has a stroke hole inside, and the track (3) has equidistantly distributed positioning holes (24) inside. The outer wall of the stroke plate (1) is provided with a sliding sleeve bracket (26). A pull rod (25) is slidably installed inside the sliding sleeve bracket (26), with one end slidably installed inside the stroke hole and the other end located inside the positioning hole (24). A support ring (29) is sleeved on the outer wall of the pull rod (25). A spring (27) is provided between the support ring (29) and the sliding sleeve bracket (26) and sleeved on the outside of the pull rod (25). A handle (28) is provided at the lower end of the pull rod (25).